A structure of a pre-composite waterproof coiled material

Abstract

The present invention relates to a pre-composite waterproof coiled material structure. Through the arrangement of the first self-adhesive layer, the second self-adhesive layer, and the upper and lower overlapping self-adhesive layers in the auxiliary bonding section, the structure of the pre-composite waterproof coiled material meets the structural requirements of two waterproof coiled materials in GB 55030-2022. During construction, the separate construction of the two waterproof coiled materials is avoided, and defects such as surface wrinkles and dust pollution caused by separate construction are overcome.

Description

Technical Field

[0001] The present invention belongs to the technical field of waterproof materials, relates to a waterproof coiled material, and particularly relates to a pre-composite waterproof coiled material structure. Background Art

[0002] GB 55030-2022 "General Code for Waterproofing of Buildings and Municipal Engineering" stipulates that for the first-class waterproof grade of open-cut underground projects, no less than 3 layers of waterproofing are required, and among the 3 layers of waterproofing, a structure combining 2 layers of rolling and coating, or 2 layers of waterproof coiled materials are needed.

[0003] CN110387197A discloses a self-adhesive waterproof coiled material, which is composed of three layers of structures. The three layers of structures are, from top to bottom, a waterproof layer, a self-adhesive layer, and an isolation film. The self-adhesive layer of the self-adhesive waterproof coiled material is internally compounded with a self-adhesive restraint material, and the materials of the self-adhesive layer are segmented on the basis of not affecting the effect of the self-adhesive layer, effectively preventing the high-temperature self-flow phenomenon caused by the decrease in viscosity of the self-adhesive material in the self-adhesive layer as the temperature rises, and eliminating the problem of blistering of the waterproof layer at high temperatures.

[0004] However, it does not pay attention to the influence of actual construction conditions such as surface wrinkles and dust pollution on the waterproof effect during the actual construction process.

[0005] CN203510823U discloses a waterproof coiled material, which is composed of a waterproof layer. A surface film layer is covered on the surface of the asphalt waterproof layer, the edge of the surface film layer is covered with a side film, the bottom surface of the waterproof layer is covered with an isolation film layer, and a bottom overlapping side film for isolating the two is arranged at the edge connection of the waterproof layer and the isolation film layer at the bottom surface, thus preventing the problem that the bonding effect of the overlapping side is affected by the penetration of cement mortar to both sides during the wet-laying self-adhesive construction process, and preventing the problem that the overlapping strength is insufficient when the dry-laying self-adhesive overlapping side runs off during the construction process.

[0006] CN202923043U discloses a TPO single-sided self-adhesive composite waterproof coiled material with a cleaning function, including a TPO coiled material layer and a self-adhesive rubber asphalt coiled material layer. The multi-layered structure is compounded into one body. Lapping edges with a length of 8-15 cm are respectively reserved on both sides of the TPO coiled material layer. A cleaning film is arranged under the lapping edge on one side of the TPO coiled material layer, and a cleaning film is arranged above the lapping edge on the other side. Through the setting of the cleaning film, the labor intensity of workers is reduced.

[0007] However, for the construction of waterproof coiled materials that meet the requirements of GB 55030-2022 "General Code for Waterproofing of Buildings and Municipal Engineering", when constructing two layers of waterproof coiled materials, according to the traditional construction method, it is necessary to first lay one layer of waterproof coiled material and then lay another layer on the already laid waterproof coiled material. However, the current construction method has at least two drawbacks: the two layers of waterproof coiled materials are used separately, resulting in more processes, higher construction costs, and slower efficiency; the bonding joints of the upper and lower layers of waterproof coiled materials are combined by self-adhesive or hot-melt methods. Due to the influence of wrinkles and dust pollution on the surface of the coiled material, there are bound to be weak bonding points, affecting the final waterproof effect.

[0008] Therefore, it is necessary to provide a pre-composite waterproof coiled material structure that is improved for actual construction, meets the tensile strength requirements of waterproof coiled materials, and is beneficial to improving the construction progress and construction effect. Summary of the Invention

[0009] The purpose of the present invention is to provide a pre-composite waterproof coiled material structure, which can overcome the adverse effects of wrinkles and dust pollution caused by the separate construction of two layers of waterproof coiled materials, and has excellent waterproof effects; moreover, it can avoid the problem of dropping caused by the weak structure of the overlapping edge.

[0010] To achieve the purpose of the present invention, the following technical solutions are adopted:

[0011] The present invention provides a pre-composite waterproof coiled material structure, and the pre-composite waterproof coiled material includes a main section; at least one end of the main section is provided with an auxiliary bonding section.

[0012] The main section includes a first self-adhesive layer and a second self-adhesive layer stacked on top of each other; at least one layer of main reinforcement layer is also provided in the main section.

[0013] The surface of the first self-adhesive layer away from the main reinforcement layer is the first surface, and a first surface layer is provided on the first surface, and the area of the first surface layer ≤ the area of the first surface.

[0014] The surface of the second self-adhesive layer away from the main reinforcement layer is the second surface, and a second surface layer is provided on the second surface, and the area of the second surface layer ≤ the area of the second surface.

[0015] The auxiliary bonding section includes an upper overlapping joint and a lower overlapping joint.

[0016] The upper overlapping joint includes an upper overlapping self-adhesive layer, and an upper overlapping surface layer and an upper isolation edge film provided on opposite sides of the upper overlapping self-adhesive layer.

[0017] The lower overlapping joint includes a lower overlapping self-adhesive layer, and a lower overlapping surface layer and a lower isolation edge film provided on opposite sides of the lower overlapping self-adhesive layer.

[0018] The upper isolation edge film and the lower isolation edge film are arranged oppositely.

[0019] At least one layer of overlapping strengthening layer is independently arranged in the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer respectively.

[0020] There is an overlapping part between the overlapping strengthening layer and the main body strengthening layer.

[0021] In the present invention, the thickness of the first self-adhesive layer is equivalent to the thickness of the self-adhesive layer in the waterproof coiled material in the prior art, and the thickness of the second self-adhesive layer is equivalent to the thickness of the self-adhesive layer in the waterproof coiled material in the prior art. Through the arrangement of the first self-adhesive layer, the second self-adhesive layer, the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer in the auxiliary bonding section, the present invention's pre-composite waterproof coiled material structure avoids the separate construction of two layers of waterproof coiled materials and meets the structural requirements of GB 55030-2022.

[0022] Exemplarily, in the pre-composite waterproof coiled material structure of the present invention, the upper overlapping self-adhesive layer is connected to the first self-adhesive layer, and the lower overlapping self-adhesive layer is connected to the second self-adhesive layer; or, the upper overlapping self-adhesive layer is connected to the second self-adhesive layer, and the lower overlapping self-adhesive layer is connected to the first self-adhesive layer.

[0023] The connection includes the bonding carried out after the main body section and the auxiliary bonding section are produced separately.

[0024] Or the first self-adhesive layer and the upper overlapping self-adhesive layer are an integral body, and the second self-adhesive layer and the lower overlapping self-adhesive layer are an integral body.

[0025] Or the first self-adhesive layer and the lower overlapping self-adhesive layer are an integral body, and the second self-adhesive layer and the upper overlapping self-adhesive layer are an integral body.

[0026] When the present invention states that "there is an overlapping part between the overlapping strengthening layer and the main body strengthening layer", it means that the overlapping strengthening layer is an extension of the main body strengthening layer, or taking the bottom surface of the pre-composite waterproof coiled material structure as a reference, the projection surface of the main body strengthening layer and the projection surface of the overlapping strengthening layer overlap.

[0027] By independently arranging at least one layer of overlapping strengthening layer in the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer respectively and making there be an overlapping part between the overlapping strengthening layer and the main body strengthening layer, the present invention improves the structural stability of the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer. For the technical solution provided by the present invention, the more the overlapping part between the overlapping strengthening layer and the main body strengthening layer, the stronger the structural stability. However, for the technical solution provided by the present invention, as long as "there is an overlapping part between the overlapping strengthening layer and the main body strengthening layer" is satisfied, the shedding of the auxiliary bonding section during the construction process can be avoided. Therefore, the present invention does not further limit the area of the overlapping part.

[0028] As one of the preferred technical solutions of the present invention, an auxiliary bonding section is provided at one end of the main body section;

[0029] A first surface layer and a first isolation edge film are provided on the first surface; the first isolation edge film is provided at one end far from the auxiliary bonding section;

[0030] The total area of the first surface layer and the first isolation edge film is equal to the area of the first surface;

[0031] A second surface layer and a second isolation edge film are provided on the second surface; the second isolation edge film is provided at one end far from the auxiliary bonding section;

[0032] The total area of the second surface layer and the second isolation edge film is equal to the area of the second surface.

[0033] Exemplarily, the methods for applying the pre - composite waterproof coiled material structure of one of the preferred technical solutions include but are not limited to:

[0034] Remove the first isolation edge film and the second isolation edge film of a pre - composite waterproof coiled material, so that the first self - adhesive layer and the second self - adhesive layer are partially exposed, and then contact with another pre - composite waterproof coiled material structure from which the upper isolation edge film and the lower isolation edge film have been removed. Specifically, the first self - adhesive layer contacts the upper overlapping self - adhesive layer, and the second self - adhesive layer contacts the lower overlapping self - adhesive layer.

[0035] For the convenience of operators to remove the first isolation edge film and / or the second isolation edge film, the first isolation edge film and / or the second isolation edge film are also provided with an extension part for easy removal. The area of the first isolation edge film does not include the area of the extension part, and the area of the second isolation edge film does not include the area of the extension part.

[0036] As the second preferred technical solution of the present invention, auxiliary bonding sections are provided at both ends of the main body section;

[0037] A first surface layer is provided on the first surface; the area of the first surface layer is equal to the area of the first surface;

[0038] A second surface layer is provided on the second surface; the area of the second surface layer is equal to the area of the second surface.

[0039] Exemplarily, the methods for applying the pre - composite waterproof coiled material structure of the second preferred technical solution include but are not limited to:

[0040] Remove the upper isolation edge film, lower isolation edge film and lower overlapping surface layer of a pre - compound waterproof coiled material structure, so that the upper overlapping self - adhesive layer and the lower overlapping self - adhesive layer are partially exposed; then remove the upper overlapping surface layer, upper isolation edge film and lower isolation edge film of another pre - compound waterproof coiled material structure, so that the upper overlapping self - adhesive layers and the lower overlapping self - adhesive layers of the two pre - compound waterproof coiled material structures are cross - bonded.

[0041] As a preferred technical solution of the present invention, the pre - compound waterproof coiled material structure is symmetrically arranged along its horizontal center plane.

[0042] In the present invention, the materials of the first isolation edge film, the second isolation edge film, the upper isolation edge film and the lower isolation edge film include but are not limited to PE film, PP film, PET film or PET aluminized film; the materials of the main body reinforcing layer and the overlapping reinforcing layer include but are not limited to PET non - silicon film.

[0043] In the present invention, the material of the first surface layer includes but is not limited to any one of PE film, PP film, PET film, PET aluminized film, PVDF film, PF film, silicon - titanium film, aluminum foil composite film, stainless steel film, sand layer or polymer fiber cloth;

[0044] In the present invention, the material of the second surface layer includes but is not limited to any one of PE film, PP film, PET film, PET aluminized film, PVDF film, PF film, silicon - titanium film, aluminum foil composite film, stainless steel film, sand layer or polymer fiber cloth;

[0045] In the present invention, the material of the upper overlapping surface layer includes but is not limited to any one of PE film, PP film, PET film, PET aluminized film, PVDF film, PF film, silicon - titanium film, aluminum foil composite film, stainless steel film, sand layer or polymer fiber cloth;

[0046] In the present invention, the material of the lower overlapping surface layer includes but is not limited to any one of PE film, PP film, PET film, PET aluminized film, PVDF film, PF film, silicon - titanium film, aluminum foil composite film, stainless steel film, sand layer or polymer fiber cloth.

[0047] The improvement point of the technical solution provided by the present invention lies in the structural improvement, and no further limitation is made on the material selection here.

[0048] Preferably, the thickness of the first self - adhesive layer is 0.5 - 4 mm, for example, it can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm or 4 mm, but not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0049] Preferably, the thickness of the second self - adhesive layer is 0.5 - 4 mm. For example, it can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm or 4 mm, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0050] Preferably, the thickness of the upper overlapping self - adhesive layer is 0.5 - 4 mm. For example, it can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm or 4 mm, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0051] Preferably, the thickness of the lower overlapping self - adhesive layer is 0.5 - 4 mm. For example, it can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm or 4 mm, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0052] Preferably, the thicknesses of the main body reinforcing layer and the overlapping reinforcing layer are each independently 0.02 mm or more. For example, it can be 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm or 0.08 mm, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0053] Preferably, at least one layer of the first self - adhesive layer, the second self - adhesive layer, the upper overlapping self - adhesive layer or the lower overlapping self - adhesive layer is prepared from the following self - adhesive material;

[0054] The self - adhesive material comprises the following component raw materials in parts by weight: 40 - 50 parts of asphalt; 5 - 10 parts of plasticizer; 0.1 - 2 parts of dispersant; 18 - 25 parts of tackifier; 15 - 25 parts of silane - modified resin; 1 - 3 parts of chloride salt; 8 - 15 parts of starch; 0.2 - 2 parts of stabilizer; 10 - 15 parts of filler; 0.2 - 1 part of anti - aging agent.

[0055] The chloride salt comprises a combination of zinc chloride and ferric trichloride.

[0056] The self - adhesive material provided by the present invention, through the improvement of the formula, enables the self - adhesive layer to have a long - term stable low water absorption rate, excellent water resistance, extremely high peel strength and good waterproof effect; moreover, the self - adhesive material provided by the present invention has creep properties, which can buffer the deformation of the base layer, ensure the integrity of the pre - composite waterproof coiled material, and improve the durability of the waterproof system.

[0057] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of asphalt is 40-50 parts, for example, it can be 40 parts, 42 parts, 44 parts, 45 parts, 46 parts, 48 ​​parts or 50 parts, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0058] In the self-adhesive material provided by the present invention, asphalt is the basic material constituting the raw materials of the self-adhesive material and plays a decisive role in the performance of the self-adhesive material.

[0059] In the present invention, asphalt is combined with chloride salt, and part of the asphalt is carbonized by using the chloride salt, which is beneficial to form a strong carbon bond.

[0060] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of the plasticizer is 5-10 parts, for example, it can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0061] In the self-adhesive material provided by the present invention, the use of the plasticizer improves the low-temperature performance of the self-adhesive material and enhances the compatibility of other modified components with asphalt.

[0062] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of the dispersant is 0.1-2 parts, for example, it can be 0.1 parts, 0.5 parts, 1 parts, 1.5 parts or 2 parts, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0063] In the self-adhesive material provided by the present invention, the use of the dispersant enhances and improves the use effect of the tackifier and the silane-modified resin.

[0064] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of the tackifier is 18-25 parts, for example, it can be 18 parts, 20 parts, 21 parts, 24 parts or 25 parts, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0065] In the self-adhesive material provided by the present invention, the use of the tackifier improves the viscoelasticity of the self-adhesive material.

[0066] In the present invention, a rubber-asphalt spatial network structure is formed by using a dispersant and a tackifier, which is beneficial to improving the bonding strength and waterproof effect of the obtained self-adhesive material.

[0067] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of the silane-modified resin is 15-25 parts, for example, it can be 15 parts, 16 parts, 18 parts, 20 parts, 21 parts, 24 parts or 25 parts, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0068] In the self-adhesive compound provided by the present invention, the use of the silane-modified resin increases the compatibility and tackifying effect of each component in the self-adhesive compound, and has a favorable effect on strength reinforcement.

[0069] In the present invention, by using a dispersant and a silane-modified resin, a rubber-resin-asphalt three-dimensional network structure is further formed on the basis of the rubber-asphalt three-dimensional network structure, which can further improve the bonding strength and waterproof effect of the obtained self-adhesive compound.

[0070] In the preparation raw materials of the self-adhesive compound provided by the present invention, the weight part of the chloride salt is 1-3 parts, for example, it can be 1 part, 1.5 parts, 2 parts, 2.5 parts or 3 parts, but is not limited to the listed values, and other unlisted values within the value range are equally applicable.

[0071] In the self-adhesive compound provided by the present invention, the use of the chloride salt improves the peel strength of the self-adhesive compound through surface diffusion and internal diffusion.

[0072] In the present invention, through the combination of the chloride salt and asphalt, the carbonization of asphalt is realized, and a firm carbon bond is achieved.

[0073] In the preparation raw materials of the self-adhesive compound provided by the present invention, the weight part of the starch is 8-15 parts, for example, it can be 8 parts, 10 parts, 12 parts, 14 parts or 15 parts, but is not limited to the listed values, and other unlisted values within the value range are equally applicable.

[0074] In the self-adhesive compound provided by the present invention, the viscosity of the self-adhesive compound is adjusted by using starch.

[0075] The starch described in the present invention includes natural starch and / or modified starch.

[0076] In the preparation raw materials of the self-adhesive compound provided by the present invention, the weight part of the stabilizer is 0.2-2 parts, for example, it can be 0.2 parts, 0.5 parts, 0.8 parts, 1 part, 1.5 parts or 2 parts, but is not limited to the listed values, and other unlisted values within the value range are equally applicable.

[0077] In the self-adhesive compound provided by the present invention, the stabilizer can be used as a compatibilizer for the self-adhesive compound, which is beneficial to the stability of the system and finally improves the stability of the self-adhesive compound.

[0078] In the preparation raw materials of the self-adhesive compound provided by the present invention, the weight part of the filler is 10-15 parts, for example, it can be 10 parts, 11 parts, 12 parts, 14 parts or 15 parts, but is not limited to the listed values, and other unlisted values within the value range are equally applicable.

[0079] In the self-adhesive material provided by the present invention, the filler serves as a skeleton in the self-adhesive material, which can enhance the strength of the self-adhesive material and improve the water resistance, wear resistance and stability of the self-adhesive material.

[0080] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of the anti-aging agent is 0.2-1 part, for example, it can be 0.2 part, 0.4 part, 0.5 part, 0.6 part, 0.8 part or 1 part, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0081] In the self-adhesive material provided by the present invention, the use of the anti-aging agent can effectively terminate the reactive free radicals generated during the preparation process of the self-adhesive material, thereby effectively avoiding the cracking of the self-adhesive material.

[0082] Preferably, the asphalt includes No. 70 asphalt and / or No. 90 asphalt.

[0083] And / or, the plasticizer includes didecyl phthalate (DPHP) and / or dioctyl terephthalate (DOTP).

[0084] And / or, the dispersant comprises a modified polyacrylic acid hyperdispersant.

[0085] And / or, the tackifier comprises a silicone tackifier.

[0086] Exemplarily, the organosilicon adhesion promoter of the present invention is an MQ adhesion promoter, including an MQ adhesion promoter formed by the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride.

[0087] And / or, the silane-modified resin includes 3-isocyanatepropyltrimethoxysilane and / or 3-isocyanatepropyltriethoxysilane.

[0088] Preferably, the stabilizer comprises diisopropylxanthogen tetrasulfide.

[0089] And / or, the oil absorption value of the filler is below 70g / 100g, for example, it can be 20g / 100g, 30g / 100g, 40g / 100g, 50g / 100g, 60g / 100g or 70g / 100g, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable, preferably wollastonite powder.

[0090] And / or, the anti-aging agent includes any one or a combination of at least two of pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], tris(2,4-di-tert-butylphenyl) phosphite, or poly(butanedioic acid-co-1,2-ethanediol, 2,2,6,6-tetramethyl-1-piperidinyl ethanol ester). Typical but non-limiting combinations include the combination of pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and tris(2,4-di-tert-butylphenyl) phosphite, the combination of tris(2,4-di-tert-butylphenyl) phosphite and poly(butanedioic acid-co-1,2-ethanediol, 2,2,6,6-tetramethyl-1-piperidinyl ethanol ester), or the combination of pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], tris(2,4-di-tert-butylphenyl) phosphite, and poly(butanedioic acid-co-1,2-ethanediol, 2,2,6,6-tetramethyl-1-piperidinyl ethanol ester).

[0091] Preferably, the preparation steps of the self-adhesive compound include:

[0092] Performing a first stirring treatment on asphalt and a plasticizer to form a first mixture;

[0093] Adding a tackifier and a first dispersant to the first mixture for a second stirring treatment;

[0094] Adding a silane-modified resin and a second dispersant to the second mixture for a third stirring treatment;

[0095] Sequentially adding a chloride salt, starch, a stabilizer, a filler, and an anti-aging agent to the third mixture and stirring evenly to obtain the self-adhesive compound;

[0096] Wherein, the dispersant is composed of a first dispersant and a second dispersant.

[0097] In the preparation steps of the self-adhesive compound provided by the present invention, the functions of the first stirring treatment include but are not limited to dehydration; through the second stirring treatment, a rubber-asphalt spatial network structure is formed; through the third stirring treatment, a rubber-resin-asphalt spatial network structure is further formed.

[0098] The self-adhesive compound obtained by the preparation method provided by the present invention has a long-term stable low water absorption rate, excellent water resistance, extremely high peel strength, and good waterproof effect; specifically, in the preparation method provided by the present invention, the dispersant is added in two times, which improves the dispersion effect and can obtain a rubber-resin-asphalt spatial network structure, while adding all at once can only obtain a rubber-asphalt structure with slightly worse effects; moreover, adding the chloride salt after mixing the silane-modified resin is beneficial to the carbonization of asphalt, facilitating the improvement of the water resistance, peel strength, waterproof effect, and creep performance of the obtained self-adhesive compound.

[0099] Preferably, the temperature of the first stirring treatment is 140-160°C. For example, it can be 140°C, 145°C, 150°C, 155°C or 160°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0100] Preferably, the temperature of the second stirring treatment is 160-180°C. For example, it can be 160°C, 165°C, 170°C, 175°C or 180°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0101] Preferably, the temperature of the third stirring treatment is 160-180°C. For example, it can be 160°C, 165°C, 170°C, 175°C or 180°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0102] Preferably, the first dispersant is more than 40% of the total amount of the dispersant. For example, it can be 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75% or 80%, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable, and preferably it is 40-60%.

[0103] Preferably, the temperature at which the chloride salt is added to the third mixture and stirred evenly is 150-170°C. For example, it can be 150°C, 155°C, 160°C, 165°C or 170°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0104] Preferably, the temperature at which the starch is added to the third mixture and stirred evenly is 140-160°C. For example, it can be 140°C, 145°C, 150°C, 155°C or 160°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0105] Preferably, the temperature at which the stabilizer is added to the third mixture and stirred evenly is 130-150°C. For example, it can be 130°C, 135°C, 140°C, 145°C or 150°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0106] Preferably, the temperature at which the filler is added to the third mixture and stirred evenly is 130-150°C. For example, it can be 130°C, 135°C, 140°C, 145°C or 150°C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0107] Preferably, the temperature at which the anti-aging agent is added to the third mixture and stirred evenly is 130 - 150 °C. For example, it can be 130 °C, 135 °C, 140 °C, 145 °C or 150 °C, but is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0108] Exemplarily, the preparation method of the pre-composite waterproof coil structure of the present invention includes, but is not limited to: using conventional methods in the art such as roll pressing, scraping or roll scraping to form at least one layer of the first self-adhesive layer, the second self-adhesive layer, the upper overlapping self-adhesive layer or the lower overlapping self-adhesive layer with the self-adhesive compound.

[0109] Exemplarily, when one layer of the main reinforcing layer is arranged between the first self-adhesive layer and the second self-adhesive layer, taking scraping as an example, the preparation method of the pre-composite waterproof coil structure includes the following steps:

[0110] Lay the lower overlapping surface layer and the second surface layer, and then scrape the self-adhesive compound to form the lower overlapping self-adhesive layer and the second self-adhesive layer. When scraping the lower overlapping self-adhesive layer, lay the overlapping reinforcing layer according to the position of the overlapping reinforcing layer; then lay the upper isolation edge film, the lower isolation edge film and the main reinforcing layer according to the structure, and then scrape the self-adhesive compound to form the upper overlapping self-adhesive layer and the first self-adhesive layer. When scraping the upper overlapping self-adhesive layer, lay the overlapping reinforcing layer according to the position of the overlapping reinforcing layer; after scraping is completed, cover the upper overlapping surface layer and the first surface layer, and finally carry out cooling and shaping and winding.

[0111] And so on for other structures. As long as the self-adhesive layer is set at the position where the self-adhesive layer needs to be set by means of roll pressing, scraping or roll scraping, and the corresponding structure is laid at the position where the isolation film, the isolation edge film or the reinforcing layer is set.

[0112] Compared with the prior art, the present invention has the following beneficial effects:

[0113] The pre-composite waterproof coil provided by the present invention, through the setting of the first self-adhesive layer, the second self-adhesive layer, and the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer in the auxiliary bonding section, makes the structure of the pre-composite waterproof coil meet the structural requirements of two waterproof coils in GB55030 - 2022, avoiding the separate construction of two waterproof coils during construction and overcoming the defects such as surface wrinkles and dust pollution caused by separate construction. Description of the Drawings

[0114] Figure 1 It is a schematic structural diagram of the pre-composite waterproof coil structure provided for Example 1;

[0115] Figure 2 It is a schematic structural diagram of the pre-composite waterproof coil structure provided for Example 12;

[0116] Figure 3Schematic diagram of the pre - composite waterproof coiled material structure provided for Example 13;

[0117] Figure 4 Schematic diagram of the pre - composite waterproof coiled material structure provided for Example 14;

[0118] Figure 5 Schematic diagram of the pre - composite waterproof coiled material structure provided for Example 15;

[0119] Figure 6 Schematic diagram of the pre - composite waterproof coiled material structure provided for Example 16.

[0120] Wherein: 1, main body section; 2, first auxiliary bonding section; 3, second auxiliary bonding section;

[0121] 110, first self - adhesive layer; 111, first surface layer; 112, first isolation edge film; 113, first main body strengthening layer;

[0122] 120, second self - adhesive layer; 121, second surface layer; 122, second isolation edge film; 123, second main body strengthening layer;

[0123] 130, main body strengthening layer;

[0124] 210, first upper overlapping joint; 211, first upper overlapping surface layer; 212, first upper isolation edge film; 213, first upper overlapping strengthening layer;

[0125] 220, first lower overlapping joint; 221, first lower overlapping surface layer; 222, first lower isolation edge film; 223, first lower overlapping strengthening layer;

[0126] 310, second upper overlapping joint; 311, second upper overlapping surface layer; 312, second upper isolation edge film; 313, second upper overlapping strengthening layer;

[0127] 320, second lower overlapping joint; 321, second lower overlapping surface layer; 322, second lower isolation edge film; 323, second lower overlapping strengthening layer. Detailed implementation manners

[0128] The technical solutions of the present invention will be further described below through specific implementation manners. Those skilled in the art should understand that the described embodiments are only for helping to understand the present invention and should not be regarded as specific limitations to the present invention.

[0129] It should be understood that in the description of the present invention, the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0130] Embodiment 1

[0131] This embodiment provides a pre - composite waterproof coiled material structure as Figure 1 shown. The pre - composite waterproof coiled material structure includes a main body section 1 and a first auxiliary adhesive section 2 connected to one end of the main body section 1;

[0132] The main body section 1 includes a first self - adhesive layer 110 and a second self - adhesive layer 120 which are stacked; a main body reinforcing layer 130 is provided between the first self - adhesive layer 110 and the second self - adhesive layer 120;

[0133] The surface of the first self - adhesive layer 110 away from the main body reinforcing layer 130 is the first surface, and a first surface layer 111 and a first isolation edge film 112 are provided on the first surface; the first isolation edge film 112 is provided at one end away from the auxiliary adhesive section;

[0134] The total area of the first surface layer 111 and the first isolation edge film 112 is equal to the area of the first surface;

[0135] The surface of the second self - adhesive layer 120 away from the main body reinforcing layer 130 is the second surface, and a second surface layer 121 and a second isolation edge film 122 are provided on the second surface; the second isolation edge film 122 is provided at one end away from the auxiliary adhesive section;

[0136] The total area of the second surface layer 121 and the second isolation edge film 122 is equal to the area of the second surface;

[0137] The first auxiliary adhesive section 2 includes a first upper overlapping joint 210 and a first lower overlapping joint 220;

[0138] The first upper overlapping joint 210 includes a first upper overlapping self - adhesive layer, and a first upper overlapping surface layer 211 and a first upper isolation edge film 212 provided on opposite sides of the first upper overlapping self - adhesive layer;

[0139] The first lower lapping joint 220 includes a first lower lapping self-adhesive layer, and a first lower lapping surface layer 221 and a first lower isolation edge film 222 disposed on opposite sides of the first lower lapping self-adhesive layer;

[0140] The first upper isolation edge film 212 is disposed opposite to the first lower isolation edge film;

[0141] One layer of a first upper lapping reinforcement layer 213 is provided in the first upper lapping self-adhesive layer, and one layer of a first lower lapping reinforcement layer 223 is provided in the first lower lapping self-adhesive layer;

[0142] The first upper lapping reinforcement layer 213 and the first lower lapping reinforcement layer 223 respectively have overlapping portions with the main body reinforcement layer 130, that is, with the bottom surface of the pre-compound waterproof coiled material structure as a reference, the projection surfaces of the main body reinforcement layer 130 respectively coincide with the projection surfaces of the first upper lapping reinforcement layer 213 and the first lower lapping reinforcement layer 223.

[0143] The pre-compound waterproof coiled material structure is symmetrically arranged along its horizontal center plane.

[0144] The thickness of the first self-adhesive layer 110 is 2 mm, the thickness of the second self-adhesive layer 120 is 2 mm, the thickness of the first upper lapping self-adhesive layer is 2 mm, the thickness of the first lower lapping self-adhesive layer is 2 mm, and the thicknesses of the main body reinforcement layer 130, the first upper lapping reinforcement layer 213, and the first lower lapping reinforcement layer 223 are respectively and independently 0.075 mm.

[0145] The first self-adhesive layer 110, the second self-adhesive layer 120, the first upper lapping self-adhesive layer and the first lower lapping self-adhesive layer are obtained by scraping the following self-adhesive materials; by weight, the preparation raw materials of the self-adhesive materials include:

[0146] 45 parts of asphalt; 8 parts of plasticizer; 1 part of dispersant; 21 parts of tackifier; 20 parts of silane-modified resin; 2 parts of chloride salt; 12 parts of starch; 1 part of stabilizer; 12 parts of filler; 0.6 part of anti-aging agent;

[0147] The asphalt is No. 70 asphalt; the plasticizer is DPHP; the dispersant is a modified polyacrylic acid hyperdispersant (Zhejiang Xinqi Chemical Co., Ltd., PAA-L); the tackifier is an MQ tackifier composed of the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride (Shandong Guike New Materials Co., Ltd., gk-m001); the silane-modified resin is 3-isocyanatopropyltrimethoxysilane; the chloride salt is a combination of zinc chloride and ferric chloride with a mass ratio of 1:1; the starch is modified starch (99% industrial grade starch from Renqiu Zhongda Chemical Industry); the stabilizer is diisopropyl xanthate tetrasulfide (WILLING WL-101); the filler is wollastonite powder; the anti-aging agent is pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate].

[0148] The dispersant is a first dispersant and a second dispersant.

[0149] The preparation method of the self-adhesive compound includes the following steps:

[0150] (1) Mix asphalt and plasticizer, and stir well at 150 °C for dehydration;

[0151] (2) Continue to mix tackifier and the first dispersant, and stir well at 170 °C to form a rubber-asphalt spatial network structure;

[0152] The first dispersant accounts for 50% of the total amount of the dispersant;

[0153] (3) Continue to mix silane-modified resin and the second dispersant, and stir well at 170 °C to further form a rubber-resin-asphalt spatial network structure;

[0154] (4-1) Continue to mix chloride salt, and stir well at 160 °C to catalyze the cohesive strength of the system;

[0155] (4-2) Continue to mix starch, and stir well at 150 °C to adjust the consistency and stability of the self-adhesive compound, maintain the balance of the system, and reduce the surface tension;

[0156] (4-3) Continue to mix stabilizer, and stir well at 140 °C to improve the bonding performance and durability of the self-adhesive compound;

[0157] (4-4) Continue to mix wollastonite powder, and stir well at 140 °C;

[0158] (4-5) Continue to mix anti-aging agent, and stir well at 140 °C to obtain the self-adhesive compound.

[0159] Example 2

[0160] This example provides a pre-composite waterproof coiled material structure, and its structure is the same as that of Example 1;

[0161] The first self-adhesive layer 110, the second self-adhesive layer 120, the first upper overlapping self-adhesive layer and the first lower overlapping self-adhesive layer are obtained by scraping the following self-adhesive compound; calculated by weight, the raw materials for preparing the self-adhesive compound include:

[0162] 40 parts of asphalt; 5 parts of plasticizer; 0.1 part of dispersant; 18 parts of tackifier; 15 parts of silane-modified resin; 1 part of chloride salt; 8 parts of starch; 0.2 part of stabilizer; 10 parts of filler; 0.2 part of anti-aging agent;

[0163] The asphalt is No. 90 asphalt; the plasticizer is DOTP; the dispersant is a modified polyacrylic acid hyperdispersant (Zhejiang Xinqi Chemical Co., Ltd., PAA-L); the tackifier is an MQ tackifier composed of the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride (Shandong Sike New Materials Co., Ltd., gk-m001); the silane-modified resin is 3-isocyanatopropyltriethoxysilane; the chloride salt is a combination of zinc chloride and ferric chloride with a mass ratio of 1:0.8; the starch is modified starch (99% industrial grade starch from Renqiu Zhongda Chemical Industry); the stabilizer is diisopropylxanthic tetrasulfide (WILLING WL-101); the filler is wollastonite powder; the antioxidant is tris(2,4-di-tert-butylphenyl) phosphite.

[0164] The dispersant is a first dispersant and a second dispersant.

[0165] Except that the first dispersant accounts for 40% of the total amount of the dispersant, other steps and parameters of the preparation method of the self-adhesive compound are the same as those in Example 1.

[0166] Example 3

[0167] This example provides a pre-composite waterproof coiled material structure, the structure of which is the same as that in Example 1;

[0168] The first self-adhesive layer 110, the second self-adhesive layer 120, the first upper overlapping self-adhesive layer and the first lower overlapping self-adhesive layer are obtained by scraping the following self-adhesive compound; by weight, the raw materials for preparing the self-adhesive compound include:

[0169] 50 parts of asphalt; 10 parts of plasticizer; 2 parts of dispersant; 25 parts of tackifier; 25 parts of silane-modified resin; 3 parts of chloride salt; 15 parts of starch; 2 parts of stabilizer; 15 parts of filler; 1 part of antioxidant;

[0170] The asphalt is No. 90 asphalt; the plasticizer is DOTP; the dispersant is a modified polyacrylic acid hyperdispersant (Zhejiang Xinqi Chemical Co., Ltd., PAA-L); the tackifier is an MQ tackifier composed of the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride (Shandong Sike New Materials Co., Ltd., gk-m001); the silane-modified resin is 3-isocyanatopropyltrimethoxysilane; the chloride salt is a combination of zinc chloride and ferric chloride with a mass ratio of 1:1.2; the starch is modified starch (99% industrial grade starch from Renqiu Zhongda Chemical Industry); the stabilizer is diisopropylxanthic tetrasulfide (WILLING WL-101); the filler is wollastonite powder; the antioxidant is polybutyl succinate (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinoethanol) ester.

[0171] The dispersant is a first dispersant and a second dispersant.

[0172] Except that the first dispersant accounts for 60% of the total amount of the dispersant, other steps and parameters of the preparation method of the self-adhesive compound are the same as those in Example 1.

[0173] Example 4

[0174] This example provides a structure of a pre-compound waterproof coiled material, and its structure is the same as that in Example 1;

[0175] In this example, the raw materials for preparing the self-adhesive compound are the same as those in Example 1, except that the chloride salt is only zinc chloride.

[0176] Example 5

[0177] This example provides a structure of a pre-compound waterproof coiled material, and its structure is the same as that in Example 1;

[0178] In this example, the raw materials for preparing the self-adhesive compound are the same as those in Example 1, except that the chloride salt is only ferric chloride.

[0179] Example 6

[0180] This example provides a structure of a pre-compound waterproof coiled material, and its structure is the same as that in Example 1;

[0181] In this example, the composition of the raw materials for preparing the self-adhesive compound is the same as that in Example 1;

[0182] The preparation method of the self-adhesive compound includes the following steps:

[0183] (1) Mix asphalt and plasticizer, and stir well at 140 °C for dehydration;

[0184] (2) Continue to mix tackifier and the first dispersant, and stir well at 160 °C to form a rubber-asphalt spatial network structure;

[0185] The first dispersant accounts for 50% of the total amount of the dispersant;

[0186] (3) Continue to mix silane-modified resin and the second dispersant, and stir well at 160 °C to further form a rubber-resin-asphalt spatial network structure;

[0187] (4-1) Continue to mix chloride salt, and stir well at 150 °C to catalyze the cohesive strength of the system;

[0188] (4-2) Continue to mix starch, and stir well at 140 °C to adjust the consistency and stability of the self-adhesive compound, maintain the balance of the system, and reduce the surface tension;

[0189] (4-3) Continue to mix stabilizer, and stir well at 130 °C to improve the bonding performance and durability of the self-adhesive compound;

[0190] (4-4) Continuously mix wollastonite powder and stir thoroughly at 130°C;

[0191] (4-5) Continuously mix the anti-aging agent and stir thoroughly at 130°C to obtain the self-adhesive compound.

[0192] Example 7

[0193] This example provides a pre-composite waterproofing membrane structure, which has the same structure as that in Example 1;

[0194] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1;

[0195] The preparation method of the self-adhesive compound includes the following steps:

[0196] (1) Mix asphalt and plasticizer and stir thoroughly at 160°C for dehydration;

[0197] (2) Continuously mix tackifier and the first dispersant and stir thoroughly at 180°C to form a rubber-asphalt spatial network structure;

[0198] The first dispersant accounts for 50% of the total amount of dispersants;

[0199] (3) Continuously mix silane-modified resin and the second dispersant and stir thoroughly at 180°C to further form a rubber-resin-asphalt spatial network structure;

[0200] (4-1) Continuously mix chloride salt and stir thoroughly at 170°C to catalyze the cohesive strength of the system;

[0201] (4-2) Continuously mix starch and stir thoroughly at 160°C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0202] (4-3) Continuously mix stabilizer and stir thoroughly at 150°C to improve the bonding performance and durability of the self-adhesive compound;

[0203] (4-4) Continuously mix wollastonite powder and stir thoroughly at 150°C;

[0204] (4-5) Continuously mix the anti-aging agent and stir thoroughly at 150°C to obtain the self-adhesive compound

[0205] Example 8

[0206] This example provides a pre-composite waterproofing membrane structure, which has the same structure as that in Example 1;

[0207] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1;

[0208] In this embodiment, the preparation method of the self-adhesive material is the same as that of Embodiment 1, except that the first dispersant in step (2) accounts for 30% of the total amount of the dispersant.

[0209] Embodiment 9

[0210] This embodiment provides a pre-compound waterproof coiled material structure, which has the same structure as that of Embodiment 1;

[0211] In this embodiment, the composition of the raw materials for preparing the self-adhesive material is the same as that of Embodiment 1;

[0212] In this embodiment, the preparation method of the self-adhesive material is the same as that of Embodiment 1, except that the first dispersant in step (2) accounts for 70% of the total amount of the dispersant.

[0213] Embodiment 10

[0214] This embodiment provides a pre-compound waterproof coiled material structure. Except that the thickness of the first self-adhesive layer 110 is 0.5 mm, the thickness of the second self-adhesive layer 120 is 0.5 mm, the thickness of the first upper overlapping self-adhesive layer is 0.5 mm, the thickness of the first lower overlapping self-adhesive layer is 0.5 mm, and the thicknesses of the main body reinforcing layer 130, the first upper overlapping reinforcing layer 213, and the first lower overlapping reinforcing layer 223 are independently 0.07 mm, the rest are the same as those of Embodiment 1.

[0215] Embodiment 11

[0216] This embodiment provides a pre-compound waterproof coiled material structure. Except that the thickness of the first self-adhesive layer 110 is 4 mm, the thickness of the second self-adhesive layer 120 is 4 mm, the thickness of the first upper overlapping self-adhesive layer is 4 mm, the thickness of the first lower overlapping self-adhesive layer is 4 mm, and the thicknesses of the main body reinforcing layer 130, the first upper overlapping reinforcing layer 213, and the first lower overlapping reinforcing layer 223 are independently 0.08 mm, the rest are the same as those of Embodiment 1.

[0217] Embodiment 12

[0218] This embodiment provides a pre-compound waterproof coiled material structure as Figure 2 shown. Except that the main body section 1 includes a first self-adhesive layer 110 and a second self-adhesive layer 120 which are stacked, a first main body reinforcing layer 113 is provided in the first self-adhesive layer 110, and a second main body reinforcing layer 123 is provided in the second self-adhesive layer 120; the first upper overlapping reinforcing layer 213 is an extension of the first main body reinforcing layer 113, and the first lower overlapping reinforcing layer 223 is an extension of the second main body reinforcing layer 123, the rest are the same as those of Embodiment 1.

[0219] In this embodiment, the thicknesses of the first main body reinforcing layer 113 and the second main body reinforcing layer 123 are independently 0.075 mm.

[0220] Example 13

[0221] This example provides a pre - composite waterproof coiled material structure as shown in Figure 3 which includes a main section 1, a first auxiliary adhesive section 2 and a second auxiliary adhesive section 3 respectively connected to both ends of the main section 1;

[0222] The main section 1 includes a first self - adhesive layer 110 and a second self - adhesive layer 120 arranged in a stacked manner; there is 1 layer of main reinforcement layer 130 arranged between the first self - adhesive layer 110 and the second self - adhesive layer 120;

[0223] The surface of the first self - adhesive layer 110 away from the main reinforcement layer 130 is the first surface, and a first surface layer 111 is arranged on the first surface; the total area of the first surface layer 111 is equal to the area of the first surface;

[0224] The surface of the second self - adhesive layer 120 away from the main reinforcement layer 130 is the second surface, and a second surface layer 121 is arranged on the second surface; the total area of the second surface layer 121 is equal to the area of the second surface;

[0225] The first auxiliary adhesive section 2 includes a first upper overlapping joint 210 and a first lower overlapping joint 220;

[0226] The first upper overlapping joint 210 includes a first upper overlapping self - adhesive layer, and a first upper overlapping surface layer 211 and a first upper isolation edge film 212 arranged on opposite sides of the first upper overlapping self - adhesive layer;

[0227] The first lower overlapping joint 220 includes a first lower overlapping self - adhesive layer, and a first lower overlapping surface layer 221 and a first lower isolation edge film 222 arranged on opposite sides of the first lower overlapping self - adhesive layer;

[0228] The first upper isolation edge film 212 and the first lower isolation edge film are arranged opposite to each other;

[0229] There is 1 layer of first upper overlapping reinforcement layer 213 arranged in the first upper overlapping self - adhesive layer, and 1 layer of first lower overlapping reinforcement layer 223 arranged in the first lower overlapping self - adhesive layer;

[0230] The first upper overlapping reinforcement layer 213 and the first lower overlapping reinforcement layer 223 respectively have overlapping parts with the main reinforcement layer 130, that is, taking the bottom surface of the pre - composite waterproof coiled material structure as a reference, the projection surfaces of the main reinforcement layer 130 respectively coincide with the projection surfaces of the first upper overlapping reinforcement layer 213 and the first lower overlapping reinforcement layer 223.

[0231] The second auxiliary bonding section 3 includes a second upper lap joint 310 and a second lower lap joint 320;

[0232] The second upper lap joint 310 includes a second upper lap self-adhesive layer, and a second upper lap surface layer 311 and a second upper isolation edge film 312 disposed on opposite sides of the second upper lap self-adhesive layer;

[0233] The second lower overlap joint 320 includes a second lower overlap self-adhesive layer, and a second lower overlap surface layer 321 and a second lower isolation edge film 322 disposed on opposite sides of the second lower overlap self-adhesive layer;

[0234] The second upper isolation edge film 312 is arranged opposite to the second lower isolation edge film;

[0235] A second upper overlapping reinforcing layer 313 is provided in the second upper overlapping self-adhesive layer, and a second lower overlapping reinforcing layer 323 is provided in the second lower overlapping self-adhesive layer;

[0236] The second upper lap reinforcement layer 213 and the second lower lap reinforcement layer 223 have overlapping parts with the main reinforcement layer 130 respectively, that is, based on the bottom surface of the pre-composite waterproof membrane structure, the projection surface of the main reinforcement layer 130 overlaps with the projection surface of the second upper lap reinforcement layer 213 and the second lower lap reinforcement layer 223 respectively.

[0237] The pre-composite waterproofing coiled material structure is symmetrically arranged along its horizontal center plane.

[0238] The thickness of the first self-adhesive layer 110 is 2 mm, the thickness of the second self-adhesive layer 120 is 2 mm, the thickness of the first upper overlapping self-adhesive layer is 2 mm, the thickness of the first lower overlapping self-adhesive layer is 2 mm, the thickness of the second upper overlapping self-adhesive layer is 2 mm, the thickness of the second lower overlapping self-adhesive layer is 2 mm, and the thickness of the main reinforcement layer, the first upper overlapping reinforcement layer 213, the first lower overlapping reinforcement layer 223, the second upper overlapping reinforcement layer 313 and the second lower overlapping reinforcement layer 323 are each independently 0.075 mm.

[0239] The first self-adhesive layer 110, the second self-adhesive layer 120, the first upper overlapping self-adhesive layer, the first lower overlapping self-adhesive layer, the first upper overlapping self-adhesive layer and the second lower overlapping self-adhesive layer are obtained by scraping the following self-adhesive material; in parts by weight, the raw materials for preparing the self-adhesive material include:

[0240] Asphalt 45 parts; plasticizer 8 parts; dispersant 1 part; tackifier 21 parts; silane modified resin 20 parts; chloride salt 2 parts; starch 12 parts; stabilizer 1 part; filler 12 parts; anti-aging agent 0.6 parts;

[0241] The asphalt is No. 70 asphalt; the plasticizer is DPHP; the dispersant is a modified polyacrylic acid hyperdispersant (Zhejiang Xinqi Chemical Co., Ltd., PAA-L); the tackifier is an MQ tackifier composed of the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride (Shandong Sike New Materials Co., Ltd., gk-m001); the silane-modified resin is 3-isocyanatopropyltrimethoxysilane; the chloride salt is a combination of zinc chloride and ferric chloride with a mass ratio of 1:1; the starch is modified starch (99% industrial grade starch from Renqiu Zhongda Chemical Industry); the stabilizer is diisopropylxanthic tetrasulfide (WILLING WL-101); the filler is wollastonite powder; the anti-aging agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate].

[0242] The dispersant is a first dispersant and a second dispersant.

[0243] The preparation method of the self-adhesive compound includes the following steps:

[0244] (1) Mix the asphalt and the plasticizer, and stir well at 150 °C for dehydration;

[0245] (2) Continuously mix the tackifier and the first dispersant, and stir well at 170 °C to form a rubber-asphalt spatial network structure;

[0246] The first dispersant is 50% of the total amount of the dispersant;

[0247] (3) Continuously mix the silane-modified resin and the second dispersant, and stir well at 170 °C to further form a rubber-resin-asphalt spatial network structure;

[0248] (4-1) Continuously mix the chloride salt, and stir well at 160 °C to catalyze the cohesive strength of the system;

[0249] (4-2) Continuously mix the starch, and stir well at 150 °C to adjust the consistency and stability of the self-adhesive compound, maintain the balance of the system, and reduce the surface tension;

[0250] (4-3) Continuously mix the stabilizer, and stir well at 140 °C to improve the bonding performance and durability of the self-adhesive compound;

[0251] (4-4) Continuously mix the wollastonite powder, and stir well at 140 °C;

[0252] (4-5) Continuously mix the anti-aging agent, and stir well at 140 °C to obtain the self-adhesive compound.

[0253] Example 14

[0254] This example provides a kind of as Figure 4The pre-composite waterproof membrane structure shown is the same as Example 13 except that the main section 1 includes a first self-adhesive layer 110 and a second self-adhesive layer 120 which are stacked, a first main reinforcement layer 113 is arranged in the first self-adhesive layer 110, and a second main reinforcement layer 123 is arranged in the second self-adhesive layer 120; the first upper overlapping reinforcement layer 213 and the second upper overlapping reinforcement layer 313 are extensions of the first main reinforcement layer 113, and the first lower overlapping reinforcement layer 223 and the second lower overlapping reinforcement layer 323 are extensions of the second main reinforcement layer 123.

[0255] In this embodiment, the thickness of the first main body reinforcement layer 113 and the second main body reinforcement layer 123 are independently 0.075 mm.

[0256] Embodiment 15

[0257] This embodiment provides a Figure 5 The pre-composite waterproof membrane structure shown is the same as that of Example 1 except that the main section 1 includes a first self-adhesive layer 110 and a second self-adhesive layer 120 which are stacked, a second main reinforcement layer 123 is arranged in the second self-adhesive layer 120, and the first lower overlapping reinforcement layer 223 is an extension of the second main reinforcement layer 123.

[0258] In this embodiment, the thickness of the second main body reinforcement layer 123 is 0.075 mm.

[0259] Example 16

[0260] This embodiment provides a Figure 6 The pre-composite waterproof membrane structure shown is the same as Example 13 except that the main section 1 includes a first self-adhesive layer 110 and a second self-adhesive layer 120 which are stacked, a second main reinforcement layer 123 is arranged in the second self-adhesive layer 120, and the first lower overlapping reinforcement layer 223 and the second lower overlapping reinforcement layer 323 are extensions of the second main reinforcement layer 123.

[0261] In this embodiment, the thickness of the second main body reinforcement layer 123 is 0.075 mm.

[0262] Comparative Example 1

[0263] This comparative example provides a pre-composite waterproofing membrane structure, which has the same structure as that of Example 1;

[0264] The raw material composition of the self-adhesive material in this comparative example is the same as that in Example 1;

[0265] In this comparative example, the preparation method of the self-adhesive material comprises the following steps:

[0266] (1) Mix asphalt and plasticizer and stir thoroughly at 150°C to dehydrate;

[0267] (2) Continuously mix the tackifier and stir thoroughly at 170°C;

[0268] (3) Continuously mix the silane-modified resin and the dispersant, and stir thoroughly at 170°C;

[0269] (4-1) Continuously mix the chloride salt and stir thoroughly at 160°C to catalyze the cohesive strength of the catalytic system;

[0270] (4-2) Continuously mix the starch and stir thoroughly at 150°C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0271] (4-3) Continuously mix the stabilizer and stir thoroughly at 140°C to improve the bonding performance and durability of the self-adhesive compound;

[0272] (4-4) Continuously mix the wollastonite powder and stir thoroughly at 140°C;

[0273] (4-5) Continuously mix the anti-aging agent and stir thoroughly at 140°C to obtain the self-adhesive compound.

[0274] Comparative Example 2

[0275] This comparative example provides a pre-composite waterproofing membrane structure, the structure of which is the same as that of Example 1;

[0276] In this comparative example, the raw material composition of the self-adhesive compound is the same as that of Example 1;

[0277] In this comparative example, the preparation method of the self-adhesive compound includes the following steps:

[0278] (1) Mix the asphalt and the plasticizer and stir thoroughly at 150°C for dehydration;

[0279] (2) Continuously mix the tackifier and the dispersant and stir thoroughly at 170°C to form a rubber-asphalt spatial network structure;

[0280] (3) Continuously mix the silane-modified resin and stir thoroughly at 170°C;

[0281] (4-1) Continuously mix the chloride salt and stir thoroughly at 160°C to catalyze the cohesive strength of the catalytic system;

[0282] (4-2) Continuously mix the starch and stir thoroughly at 150°C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0283] (4-3) Continuously mix the stabilizer and stir thoroughly at 140°C to improve the bonding performance and durability of the self-adhesive compound;

[0284] (4-4) Continuously mix the wollastonite powder and stir thoroughly at 140°C;

[0285] (4 - 5) Continuously mix the anti - aging agent and stir thoroughly at 140 °C to obtain the self - adhesive compound.

[0286] Comparative Example 3

[0287] This comparative example provides a pre - composite waterproof coiled material structure, the structure of which is the same as that of Example 1;

[0288] In this comparative example, the composition of the raw materials for preparing the self - adhesive compound is the same as that of Example 1;

[0289] In this comparative example, the preparation method of the self - adhesive compound includes the following steps:

[0290] (1) Mix asphalt and plasticizer and stir thoroughly at 150 °C for dehydration;

[0291] (4 - 1) Continuously mix the chloride salt and stir thoroughly at 160 °C to catalyze the cohesive strength of the system;

[0292] (2) Continuously mix the tackifier and the first dispersant and stir thoroughly at 170 °C to form a rubber - asphalt spatial network structure;

[0293] The first dispersant is 50% of the total amount of the dispersant;

[0294] (3) Continuously mix the silane - modified resin and the second dispersant and stir thoroughly at 170 °C to further form a rubber - resin - asphalt spatial network structure;

[0295] (4 - 2) Continuously mix starch and stir thoroughly at 150 °C to adjust the consistency and stability of the self - adhesive compound, maintain the system balance, and reduce the surface tension;

[0296] (4 - 3) Continuously mix the stabilizer and stir thoroughly at 140 °C to improve the bonding performance and durability of the self - adhesive compound;

[0297] (4 - 4) Continuously mix wollastonite powder and stir thoroughly at 140 °C;

[0298] (4 - 5) Continuously mix the anti - aging agent and stir thoroughly at 140 °C to obtain the self - adhesive compound.

[0299] Comparative Example 4

[0300] This comparative example provides a pre - composite waterproof coiled material structure, the structure of which is the same as that of Example 14;

[0301] In this comparative example, the composition of the raw materials for preparing the self - adhesive compound is the same as that of Example 14;

[0302] In this comparative example, the preparation method of the self - adhesive compound includes the following steps:

[0303] (1) Mix asphalt and plasticizer, and stir well at 150 °C for dehydration;

[0304] (2) Continue to mix the tackifier and stir well at 170 °C;

[0305] (3) Continue to mix the silane-modified resin and dispersant, and stir well at 170 °C;

[0306] (4-1) Continue to mix the chloride salt and stir well at 160 °C to catalyze the cohesive strength of the system;

[0307] (4-2) Continue to mix the starch and stir well at 150 °C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0308] (4-3) Continue to mix the stabilizer and stir well at 140 °C to improve the bonding performance and durability of the self-adhesive compound;

[0309] (4-4) Continue to mix the wollastonite powder and stir well at 140 °C;

[0310] (4-5) Continue to mix the anti-aging agent and stir well at 140 °C to obtain the self-adhesive compound.

[0311] Comparative Example 5

[0312] This comparative example provides a pre-composite waterproof coiled material structure, the structure of which is the same as that of Example 14;

[0313] In this comparative example, the composition of the raw materials for preparing the self-adhesive compound is the same as that of Example 14;

[0314] In this comparative example, the preparation method of the self-adhesive compound includes the following steps:

[0315] (1) Mix asphalt and plasticizer, and stir well at 150 °C for dehydration;

[0316] (2) Continue to mix the tackifier and dispersant and stir well at 170 °C to form a rubber-asphalt spatial network structure;

[0317] (3) Continue to mix the silane-modified resin and stir well at 170 °C;

[0318] (4-1) Continue to mix the chloride salt and stir well at 160 °C to catalyze the cohesive strength of the system;

[0319] (4-2) Continue to mix the starch and stir well at 150 °C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0320] (4-3) Continue to mix the stabilizer and stir well at 140 °C to improve the bonding performance and durability of the self-adhesive compound;

[0321] (4-4) Continuously mix wollastonite powder and stir thoroughly at 140 °C;

[0322] (4-5) Continuously mix the anti-aging agent and stir thoroughly at 140 °C to obtain the self-adhesive compound.

[0323] Comparative Example 6

[0324] This comparative example provides a pre-compound waterproof coiled material structure, the structure of which is the same as that of Example 14;

[0325] In this comparative example, the composition of the raw materials for preparing the self-adhesive compound is the same as that of Example 14;

[0326] In this comparative example, the preparation method of the self-adhesive compound includes the following steps:

[0327] (1) Mix asphalt and plasticizer and stir thoroughly at 150 °C for dehydration;

[0328] (4-1) Continuously mix chloride salt and stir thoroughly at 160 °C to catalyze the cohesive strength of the system;

[0329] (2) Continuously mix tackifier and the first dispersant and stir thoroughly at 170 °C to form a rubber-asphalt spatial network structure;

[0330] The first dispersant accounts for 50% of the total amount of the dispersant;

[0331] (3) Continuously mix silane-modified resin and the second dispersant and stir thoroughly at 170 °C to further form a rubber-resin-asphalt spatial network structure;

[0332] (4-2) Continuously mix starch and stir thoroughly at 150 °C to adjust the consistency and stability of the self-adhesive compound, maintain the system balance, and reduce the surface tension;

[0333] (4-3) Continuously mix the stabilizer and stir thoroughly at 140 °C to improve the bonding performance and durability of the self-adhesive compound;

[0334] (4-4) Continuously mix wollastonite powder and stir thoroughly at 140 °C;

[0335] (4-5) Continuously mix the anti-aging agent and stir thoroughly at 140 °C to obtain the self-adhesive compound.

[0336] The water absorption rate and water resistance of the self-adhesive compounds provided in Examples 1-16 and Comparative Examples 1-6 were tested, and the results are shown in Table 1. During the test, standard specimens of the self-adhesive layer were first prepared from the self-adhesive compound according to the conventional method in the art.

[0337] The test method for water absorption rate is as follows: Place for 24 h under the conditions of a temperature of 23 ± 2 °C and a relative humidity of 50 ± 10%. Weigh the initial mass m0 of each specimen respectively, then place the specimens into the third-grade water conforming to the provisions of GB / T 6682-2008, and immerse them at 25 mm below the liquid level, and soak continuously for 7 d ± 2 h; After the soaking is completed, immediately take out the specimens and remove the surface clear water, weigh the mass m1 after soaking, and calculate the water absorption rate:

[0338] Water absorption rate = [(m1 - m0) / m0] × 100%; The dimensions of m1 and m0 are g.

[0339] The test method for water resistance is as follows: Place for 24 h under the conditions of a temperature of 23 ± 2 °C and a relative humidity of 50 ± 10%, then place the specimens into the third-grade water conforming to the provisions of GB / T 6682-2008, and immerse them at 25 mm below the liquid level, and soak continuously for 14 d ± 2 h, and change the water every 7 d; After the treatment is completed, immediately take out the specimens and observe whether there are phenomena such as cracks, delamination, bubbles or breakage in the specimens.

[0340] Table 1

[0341]

[0342]

[0343] The peel strength and joint water impermeability of the pre-compound waterproofing membrane structures provided in Examples 1-16 and the pre-compound waterproofing membrane structures provided in Comparative Examples 1-6 were tested, and the obtained results are shown in Table 2, where:

[0344] The test method for peel strength and the test method for joint water impermeability are carried out in accordance with T / CWA 302-2023 "Test Methods for Engineering Requirements of Building Waterproofing Materials".

[0345] Table 2

[0346]

[0347] The anti-channeling water resistance of the pre-compound waterproofing membrane structures provided in Examples 1-16 and the pre-compound waterproofing membrane structures provided in Comparative Examples 1-6 was tested, and the obtained results are shown in Table 3. The anti-channeling water resistance was tested in accordance with the standard of JC / T 2428-2017. Among them, the better the anti-channeling water resistance, the better the creep property of the self-adhesive layer in the obtained pre-compound waterproofing membrane structure.

[0348] Table 3

[0349]

[0350] In summary, for the prefabricated composite waterproof coiled material structure provided by the present invention, through the settings of the first self-adhesive layer, the second self-adhesive layer, the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer in the auxiliary bonding section, the separate construction of two layers of waterproof coiled materials is avoided, and it meets the structural requirements of GB 55030-2022. During construction, the separate construction of two waterproof coiled materials is avoided, and defects such as surface wrinkles and dust pollution caused by separate construction are overcome; for the self-adhesive material provided by the present invention, through the improvement of the formula, it has a long-term stable low water absorption rate, excellent water resistance, extremely high peel strength and good waterproof effect; for the preparation method provided by the present invention, the obtained self-adhesive material has a long-term stable low water absorption rate, excellent water resistance, extremely high peel strength and good waterproof effect; specifically, for the preparation method provided by the present invention, the dispersant is added in two times, which improves the dispersion effect and can obtain a rubber-resin-bitumen spatial network structure, while adding all at once can only obtain a rubber-bitumen structure with slightly worse effect.

[0351] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of within the technical scope disclosed by the present invention by those skilled in the art all fall within the protection scope and the disclosure scope of the present invention.

Claims

1. A pre-composite waterproof coiled material structure, characterized in that, The pre-composite waterproof coiled material structure includes a main body section; at least one end of the main body section is provided with an auxiliary bonding section; The main body section includes a first self-adhesive layer and a second self-adhesive layer arranged in a stacked manner; at least one layer of main body reinforcement layer is also provided in the main body section; The surface of the first self-adhesive layer away from the main body reinforcement layer is the first surface, and a first surface layer is provided on the first surface, and the area of the first surface layer ≤ the area of the first surface; The surface of the second self-adhesive layer away from the main body reinforcement layer is the second surface, and a second surface layer is provided on the second surface, and the area of the second surface layer ≤ the area of the second surface; The auxiliary bonding section includes an upper overlapping joint and a lower overlapping joint; The upper overlapping joint includes an upper overlapping self-adhesive layer, and an upper overlapping surface layer and an upper isolation edge film arranged on opposite sides of the upper overlapping self-adhesive layer; The lower overlapping joint includes a lower overlapping self-adhesive layer, and a lower overlapping surface layer and a lower isolation edge film arranged on opposite sides of the lower overlapping self-adhesive layer; The upper isolation edge film and the lower isolation edge film are arranged opposite to each other; At least one layer of overlapping reinforcement layer is independently provided in the upper overlapping self-adhesive layer and the lower overlapping self-adhesive layer; There is an overlapping part between the overlapping reinforcement layer and the main body reinforcement layer; At least one layer of the first self-adhesive layer, the second self-adhesive layer, the upper overlapping self-adhesive layer or the lower overlapping self-adhesive layer is prepared from the following self-adhesive material; The self-adhesive material includes the following component raw materials in parts by weight: 40 - 50 parts of asphalt 5 - 10 parts of plasticizer 0.1 - 2 parts of dispersant 18 - 25 parts of tackifier 15 - 25 parts of silane-modified resin 1 - 3 parts of chloride salt 8 - 15 parts of starch 0.2 - 2 parts of stabilizer 10 - 15 parts of filler 0.2 - 1 part of anti-aging agent; The chloride salt includes a combination of zinc chloride and ferric trichloride; The tackifier includes an organosilicon tackifier; The organosilicon tackifier is an MQ tackifier; The silane-modified resin includes 3-isocyanatopropyltrimethoxysilane and / or 3-isocyanatopropyltriethoxysilane; The stabilizer includes diisopropylxanthogen tetrasulfide; The self-adhesive material is obtained by the following preparation method, and the preparation method includes the following steps: Perform a first stirring treatment on asphalt and a plasticizer to form a first mixture; Add a tackifier and a first dispersant to the first mixture and perform a second stirring treatment to form a second mixture; Add a silane-modified resin and a second dispersant to the second mixture and perform a third stirring treatment to form a third mixture; Add the chloride salt, starch, stabilizer, filler and anti-aging agent to the third mixture in sequence and stir evenly to obtain the self-adhesive material; Wherein, the dispersant is composed of the first dispersant and the second dispersant.

2. The pre-composite waterproof coiled material structure according to claim 1, characterized in that, One end of the main body section is provided with an auxiliary bonding section; The first surface is provided with a first surface layer and a first isolation edge film; the first isolation edge film is arranged at one end away from the auxiliary bonding section; The total area of the first surface layer and the first isolation edge film is equal to the area of the first surface; The second surface is provided with a second surface layer and a second isolation edge film; The second isolation edge film is disposed at one end away from the auxiliary bonding section; The total area of the second surface layer and the second isolation edge film is equal to the area of the second surface.

3. The pre-composite waterproof coiled material structure according to claim 1, characterized in that Auxiliary bonding sections are provided at both ends of the main body section; A first surface layer is provided on the first surface; the area of the first surface layer is equal to the area of the first surface; A second surface layer is provided on the second surface; the area of the second surface layer is equal to the area of the second surface.

4. The prefabricated composite waterproof coiled material structure according to claim 1, wherein, The thickness of the first self-adhesive layer is 0.5 - 4 mm; and / or The thickness of the second self-adhesive layer is 0.5 - 4 mm; and / or The thickness of the upper overlapping self-adhesive layer is 0.5 - 4 mm; and / or The thickness of the lower overlapping self-adhesive layer is 0.5 - 4 mm; and / or The thicknesses of the main body reinforcement layer and the overlapping reinforcement layer are each independently 0.02 mm or more.

5. The prefabricated composite waterproof coiled material structure according to claim 1, wherein, The asphalt includes asphalt No. 70 and / or asphalt No. 90; and / or, The plasticizer includes didecyl phthalate and / or dioctyl terephthalate; and / or The dispersant includes a modified polyacrylic acid hyperdispersant.

6. The prefabricated composite waterproof coiled material structure according to claim 1, wherein, The oil absorption value of the filler is 70 g / 100 g or less; and / or The filler is wollastonite powder; and / or The anti-aging agent includes any one or a combination of at least two of pentaerythritol tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], tris(2,4-di-tert-butylphenyl) phosphite, or poly [succinic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinoethanol) ester].

7. The prefabricated composite waterproof coiled material structure according to claim 1, characterized in that, The temperature of the first stirring treatment is 140 - 160 °C; and / or The temperature of the second stirring treatment is 160 - 180 °C; and / or The temperature of the third stirring treatment is 160 - 180 °C.

8. The pre-composite waterproof coiled material structure according to claim 1, characterized in that The first dispersant accounts for more than 40% of the total mass of the dispersant; and / or The temperature at which the chloride salt is added to the third mixture and stirred evenly is 150 - 170 °C; and / or The temperature at which the starch is added to the third mixture and stirred evenly is 140 - 160 °C; and / or The temperature at which the stabilizer is added to the third mixture and stirred evenly is 130 - 150 °C; and / or The temperature at which the filler is added to the third mixture and stirred evenly is 130 - 150 °C; and / or The temperature at which the anti-aging agent is added to the third mixture and stirred evenly is 130 - 150 °C.

9. The prefabricated composite waterproof coiled material structure according to claim 8, characterized in that, The first dispersant accounts for 40 - 60% of the total mass of the dispersant.

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