A pre-composite waterproofing membrane

Abstract

The present invention provides a pre‑composite waterproof coiled material. Through the arrangement of the first self‑adhesive layer, the second self‑adhesive layer, the first overlapping self‑adhesive layer and the second overlapping self‑adhesive layer, 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 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. Background Art

[0002] GB 55030-2022 "General Code for Waterproofing of Buildings and Municipal Engineering" stipulates that for the first-level waterproof grade of open-cut underground projects, at least 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 is needed.

[0003] CN110387197A discloses a self-adhesive waterproof coiled material. The self-adhesive waterproof coiled material consists 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. A self-adhesive restraint material is compounded inside the self-adhesive layer of the self-adhesive waterproof coiled material. On the basis of not affecting the effect of the self-adhesive layer, the materials of the self-adhesive layer are segmented, 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 bubbling problem 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] CN112275530A discloses a wide-width polymer-enhanced self-adhesive waterproof coiled material and its edge online gluing system. The wide-width polymer-reduced self-adhesive waterproof coiled material is a hierarchical structure, which is, from top to bottom, a reduced-adhesion layer, a self-adhesive layer, a main waterproof layer, a self-adhesive strip, and a transfer film. The width of the reduced-adhesion layer is smaller than that of the self-adhesive layer. One side of the reduced-adhesion layer is flush with the self-adhesive layer, and the other side forms a lapped edge where part of the self-adhesive layer is exposed. An isolation film is covered on the lapped edge. The specification of the self-adhesive strip matches the width of the lapped edge and is arranged on the side of the main waterproof layer of the wide-width polymer-enhanced self-adhesive waterproof coiled material that is flush with the reduced-adhesion layer and the self-adhesive layer, and is bonded to the lapped edge during construction.

[0006] However, when constructing 2 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 of waterproof coiled material on the already laid waterproof coiled material. But the current construction method has at least two drawbacks: the two layers of waterproof coiled materials are used separately, with more processes, higher construction costs, and slower efficiency; the bonding part between the upper and lower layers of waterproof coiled materials is 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.

[0007] Therefore, there is a need to provide a pre-composite waterproof coiled material that is improved for actual construction, meets the tensile strength requirements of the waterproof coiled material, and is beneficial to improving the construction progress and construction effect. Summary of the Invention

[0008] The object of the present invention is to provide a pre - composite waterproof coiled material, and the structure of the pre - composite waterproof coiled material can overcome the adverse effects of wrinkles and dust pollution caused by the separate construction of two waterproof coiled materials, and has excellent waterproof effect.

[0009] To achieve the object of the present invention, the following technical solutions are adopted:

[0010] In a first aspect, the present invention provides a pre - composite waterproof coiled material, and the pre - composite waterproof coiled material includes a first section and a second section connected to one end of the first section;

[0011] The first section includes a first self - adhesive layer and a second self - adhesive layer which are stacked;

[0012] At least one layer of reinforcing layer is also provided in the first section;

[0013] On the surface of the first self - adhesive layer or the second self - adhesive layer away from the reinforcing layer, a first surface layer and a first isolation edge film are provided, and a second surface layer and a second isolation edge film are provided on the opposite surface of the first section of the first surface layer;

[0014] The first isolation edge film and the second isolation edge film are provided at one end of the first section away from the second section;

[0015] The second section includes a first lap joint and a second lap joint;

[0016] The first lap joint includes a first lap self - adhesive layer, and a first lap surface layer and a third isolation edge film provided on opposite sides of the first lap self - adhesive layer;

[0017] The second lap joint includes a second lap self - adhesive layer, and a second lap surface layer and a fourth isolation edge film provided on opposite sides of the second lap self - adhesive layer;

[0018] The third isolation edge film and the fourth isolation edge film are arranged oppositely.

[0019] For the pre - composite waterproof coiled material provided by the present invention, through the arrangement of the first self - adhesive layer, the second self - adhesive layer, the first lap self - adhesive layer and the second lap self - adhesive layer, the total thickness of the first self - adhesive layer and the second self - adhesive layer is equivalent to the thickness of the self - adhesive layer in two conventional waterproof coiled materials, so that the structure of the pre - composite waterproof coiled material meets the structural requirements of 2 waterproof coiled materials in 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.

[0020] In the present invention, the second section is disposed at one end of the first section. Moreover, third isolation edge films and fourth isolation edge films are respectively disposed on the opposite surfaces of the first overlapping joint and the second overlapping joint in the second section, avoiding the adhesion between the first overlapping joint and the second overlapping joint, and making the shape of the whole pre - composite waterproof coiled material present a "Y" shape.

[0021] Exemplarily, in the pre - composite waterproof coiled material of the present invention, the first overlapping self - adhesive layer is connected to the first self - adhesive layer, and the second overlapping self - adhesive layer is connected to the second self - adhesive layer; or, the first overlapping self - adhesive layer is connected to the second self - adhesive layer, and the second overlapping self - adhesive layer is connected to the first self - adhesive layer.

[0022] The connection includes the adhesion performed after the first section and the second section are respectively produced;

[0023] or the first self - adhesive layer and the first overlapping self - adhesive layer are an integral body, and the second self - adhesive layer and the second overlapping self - adhesive layer are an integral body;

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

[0025] Exemplarily, when applying the pre - composite waterproof coiled material provided by the present invention:

[0026] Remove the first isolation edge film and the second isolation edge film of a pre - composite waterproof coiled material to partially expose the first self - adhesive layer and the second self - adhesive layer, and then contact another pre - composite waterproof coiled material from which the third isolation edge film and the fourth isolation edge film have been removed. Specifically, the first self - adhesive layer contacts the first overlapping self - adhesive layer, and the second self - adhesive layer contacts the second overlapping self - adhesive layer.

[0027] In the present invention, the materials of the first isolation edge film, the second isolation edge film, the third isolation edge film and the fourth isolation edge film include but are not limited to PE film, PP film, PET film or PET aluminized film. In the present invention, the material of the reinforcing layer includes but is not limited to PET non - silicon film.

[0028] 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; 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. The material of the first 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; the material of the second 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.

[0029] The improvement point of the technical solution provided by the present invention lies in the improvement of the structure. Further limitation on the material selection is not made herein, and it can be reasonably set according to the application scenario requirements.

[0030] Exemplarily, the first surface layer does not overlap with the first isolation edge film, and the area of the first surface layer and the first isolation edge film = the surface area of the first self-adhesive layer away from the reinforcing layer; the area of the second surface layer and the second isolation edge film = the surface area of the second self-adhesive layer away from the reinforcing layer.

[0031] To facilitate the operator 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 further 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.

[0032] In the present invention, the length of the reinforcing layer is less than the length of the first section, that is, it is necessary to make the reinforcing layer not extend beyond one end of the first section away from the second section.

[0033] The number of reinforcing layers in the first section is at least 1 layer. For example, it can be 1 layer, 2 layers, 3 layers, 4 layers or 5 layers, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0034] As a preferred technical solution, the first section is the first self-adhesive layer, the second self-adhesive layer and 1 layer of reinforcing layer sandwiched between the first self-adhesive layer and the second self-adhesive layer.

[0035] Preferably, the first isolation edge film has the same size as the third isolation edge film and / or the fourth isolation edge film.

[0036] The present invention makes the size of the first isolation edge film the same as that of the third isolation edge film and / or the fourth isolation edge film, so that the size of the first self-adhesive layer exposed after removing the first isolation edge film is the same as the size of the first overlapping self-adhesive layer and / or the second overlapping self-adhesive layer exposed after removing the third isolation edge film and / or the fourth isolation edge film.

[0037] Preferably, the size of the second isolation edge film is the same as that of the fourth isolation edge film and / or the third isolation edge film.

[0038] The present invention makes the size of the second isolation edge film the same as that of the fourth isolation edge film and / or the third isolation edge film, so that the size of the second self-adhesive layer exposed after removing the second isolation edge film is the same as the size of the second overlapping self-adhesive layer and / or the first overlapping self-adhesive layer exposed after removing the fourth isolation edge film and / or the third isolation edge film.

[0039] 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 is not limited to the listed values. Other unlisted values within the numerical range are equally applicable.

[0040] 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.

[0041] Preferably, the thickness of the first 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.

[0042] Preferably, the thickness of the second 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.

[0043] Preferably, the thickness of the reinforcement layer is 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.

[0044] Preferably, at least one layer of the first self-adhesive layer, the second self-adhesive layer, the first overlapping self-adhesive layer, and the second overlapping self-adhesive layer is prepared from a self-adhesive layer; the self-adhesive material comprises the following component raw materials in parts by weight:

[0045] 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;

[0046] The chloride salt includes zinc chloride and / or ferric trichloride.

[0047] 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.

[0048] In the preparation raw materials of the self-adhesive material provided by the present invention, the weight 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 equally applicable.

[0049] In the self-adhesive material provided by the present invention, asphalt is the basic material of the self-adhesive material composition raw materials and plays a decisive role in the performance of the self-adhesive material.

[0050] In the present invention, asphalt is combined with chloride salt, and partial carbonization of asphalt is facilitated through the use of chloride salt, which is beneficial to the formation of a firm carbon bond.

[0051] In the preparation raw materials of the self-adhesive material provided by the present invention, the weight 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 equally applicable.

[0052] 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.

[0053] In the preparation raw materials of the self-adhesive material provided by the present invention, the weight of the dispersant is 0.1 - 2 parts, for example, it can be 0.1 part, 0.5 part, 1 part, 1.5 part or 2 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0054] 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.

[0055] 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.

[0056] In the self-adhesive material provided by the present invention, the use of the tackifier improves the viscoelasticity of the self-adhesive material.

[0057] 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.

[0058] 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.

[0059] In the self-adhesive material provided by the present invention, the use of the silane-modified resin increases the compatibility and viscosity-increasing effect of each component in the self-adhesive material and plays a beneficial effect of strengthening the strength.

[0060] In the present invention, by using a dispersant and a silane-modified resin, a rubber-resin-asphalt spatial network structure is further formed on the basis of the rubber-asphalt spatial network structure, which can further improve the bonding strength and waterproof effect of the obtained self-adhesive material.

[0061] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of 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 numerical range are also applicable.

[0062] In the self-adhesive material provided by the present invention, the use of chloride salt improves the peeling strength of the self-adhesive material through surface diffusion and internal diffusion.

[0063] In the present invention, the carbonization of the asphalt is achieved by combining the chloride salt with the asphalt, thereby achieving a strong carbon bond.

[0064] In the raw materials for preparing the self-adhesive material provided by the present invention, the weight proportion of 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 numerical range are also applicable.

[0065] In the self-adhesive compound provided by the present invention, the viscosity of the self-adhesive compound is adjusted by using starch.

[0066] The starch described in the present invention includes natural starch and / or modified starch.

[0067] Among the raw materials for preparing 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 part, 0.5 part, 0.8 part, 1 part, 1.5 parts or 2 parts, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable.

[0068] In the self-adhesive compound provided by the present invention, the stabilizer can act as a compatibilizer for the self-adhesive compound, which is beneficial to the stability of the system and ultimately improves the stability of the self-adhesive compound.

[0069] Among the raw materials for preparing 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 numerical range are equally applicable.

[0070] In the self-adhesive compound provided by the present invention, as the framework in the self-adhesive compound, the filler can enhance the strength of the self-adhesive compound and improve the water resistance, wear resistance and stability of the self-adhesive compound.

[0071] Among the raw materials for preparing the self-adhesive compound provided by the present invention, the weight part 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 equally applicable.

[0072] In the self-adhesive compound 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 compound and effectively avoid the cracking of the self-adhesive compound.

[0073] Preferably, the asphalt includes asphalt No. 70 and / or asphalt No. 90.

[0074] Preferably, the plasticizer includes didecyl phthalate (DPHP) and / or dioctyl terephthalate (DOTP).

[0075] Preferably, the dispersant includes a modified polyacrylic acid hyperdispersant.

[0076] Preferably, the tackifier includes an organosilicon tackifier.

[0077] Exemplarily, the organosilicon tackifier described in the present invention is an MQ tackifier, including the MQ tackifier formed by the reaction of monofunctional trimethylsilane and tetrafunctional silicon tetrachloride.

[0078] Preferably, the silane-modified resin comprises 3-isocyanatopropyltrimethoxysilane and / or 3-isocyanatopropyltriethoxysilane.

[0079] Preferably, the stabilizer comprises diisopropylxanthogen tetrasulfide.

[0080] Preferably, the oil absorption value of the filler is 70 g / 100 g or less, and may be, for example, 20 g / 100 g, 30 g / 100 g, 40 g / 100 g, 50 g / 100 g, 60 g / 100 g or 70 g / 100 g, but is not limited to the listed values, and other unlisted values within the numerical range are equally applicable. Preferably, it is wollastonite powder.

[0081] Preferably, the anti-aging agent comprises 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[succinic acid, 1,4-butanediol, 4-hydroxy-2,2,6,6-tetramethyl-1-piperidylethanol] 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[succinic acid, 1,4-butanediol, 4-hydroxy-2,2,6,6-tetramethyl-1-piperidylethanol] 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[succinic acid, 1,4-butanediol, 4-hydroxy-2,2,6,6-tetramethyl-1-piperidylethanol] ester.

[0082] Preferably, the preparation steps of the self-adhesive compound include:

[0083] Performing a first stirring treatment on asphalt and a plasticizer to form a first mixture;

[0084] Adding a tackifier and a first dispersant to the first mixture for a second stirring treatment;

[0085] Adding a silane-modified resin and a second dispersant to the second mixture for a third stirring treatment;

[0086] 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;

[0087] Wherein, the dispersant is composed of a first dispersant and a second dispersant.

[0088] 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.

[0089] 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 portions, which improves the dispersion effect and enables the formation of a rubber-resin-asphalt spatial network structure, while adding all of it at once can only obtain a rubber-asphalt structure with slightly worse effects. Moreover, in the present invention, after mixing the silane-modified resin, adding the chloride salt is beneficial to the carbonization of asphalt, facilitating the improvement of the water resistance, peel strength, and waterproof effect of the obtained self-adhesive compound.

[0090] 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, and other unlisted values within the numerical range are equally applicable.

[0091] 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, and other unlisted values within the numerical range are equally applicable.

[0092] 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, and other unlisted values within the numerical range are equally applicable.

[0093] 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, and other unlisted values within the numerical range are equally applicable, preferably 40 - 60%.

[0094] 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, and other unlisted values within the numerical range are equally applicable.

[0095] Preferably, the temperature for uniformly stirring the starch into the third mixture 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, and other unlisted values within the numerical range are equally applicable.

[0096] Preferably, the temperature for uniformly stirring the stabilizer into the third mixture 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, and other unlisted values within the numerical range are equally applicable.

[0097] Preferably, the temperature for uniformly stirring the filler into the third mixture 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, and other unlisted values within the numerical range are equally applicable.

[0098] Preferably, the temperature for uniformly stirring the anti - aging agent into the third mixture 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, and other unlisted values within the numerical range are equally applicable.

[0099] Exemplarily, the preparation method of the pre - composite waterproof coiled material of the present invention includes but is not limited to: using conventional methods in the art such as roll pressing, scraping coating or roll scraping to form at least one layer of the first self - adhesive layer, the second self - adhesive layer, the first lap self - adhesive layer or the second lap self - adhesive layer with the self - adhesive compound.

[0100] Exemplarily, when one layer of reinforcing layer is arranged between the first self - adhesive layer and the second self - adhesive layer, taking scraping coating as an example, the preparation method of the pre - composite waterproof coiled material includes the following steps:

[0101] Lay the second lap surface layer, the second surface layer and the second isolation edge film, then scrape - coat the self - adhesive compound to form the second lap self - adhesive layer and the second self - adhesive layer; then lay the third isolation edge film, the fourth isolation edge film and the reinforcing layer according to the structure, and then scrape - coat the self - adhesive compound to form the first lap self - adhesive layer and the first self - adhesive layer; after scraping coating is completed, cover the first lap surface layer, the first surface layer and the first isolation edge film, and finally carry out cooling and shaping and winding.

[0102] Other structures can be deduced by analogy. 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 coating or roll scraping, and the corresponding structure is laid at the position where the isolation film, isolation edge film or reinforcing layer is set.

[0103] Compared with the prior art, the present invention has the following beneficial effects:

[0104] The prefabricated composite waterproof coiled material provided by the present invention, through the arrangement of the first self-adhesive layer, the second self-adhesive layer, the first overlapping self-adhesive layer and the second overlapping self-adhesive layer, makes the structure of the prefabricated composite waterproof coiled material meet the structural requirements of 2 layers of waterproof coiled materials in GB 55030-2022. During construction, the separate construction of two layers of waterproof coiled materials is avoided, and defects such as surface wrinkles and dust pollution caused by separate construction are overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1 is a schematic structural diagram of the prefabricated composite waterproof coiled material provided by the present invention;

[0106] Among them: 1, the first section; 2, the second section;

[0107] 110, the first self-adhesive layer; 111, the first surface layer; 112, the first isolation edge film;

[0108] 120, the second self-adhesive layer; 121, the second surface layer; 122, the second isolation edge film;

[0109] 130, the reinforcement layer;

[0110] 210, the first overlapping self-adhesive layer; 211, the first overlapping surface layer; 212, the third isolation edge film;

[0111] 220, the second overlapping self-adhesive layer; 221, the second overlapping surface layer; 222, the fourth isolation edge film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0112] The technical solution of the present invention will be further described below through specific embodiments. Those skilled in the art should understand that the embodiments are only for helping to understand the present invention and should not be regarded as specific limitations on the present invention.

[0113] Embodiment 1

[0114] This embodiment provides a prefabricated composite waterproof coiled material as Figure 1 shown. The prefabricated composite waterproof coiled material includes a first section 1 and a second section 2 provided at one end of the first section 1;

[0115] The first section 1 includes a first self-adhesive layer 110, a second self-adhesive layer 120 and a reinforcement layer 130 sandwiched between the first self-adhesive layer 110 and the second self-adhesive layer 120;

[0116] On the surface of the first self-adhesive layer 110 away from the reinforcement layer 130, a first surface layer 111 and a first isolation edge film 112 are provided; the first isolation edge film 112 is provided at one end away from the second section 2;

[0117] On the surface of the second self-adhesive layer 120 away from the reinforcing layer 130, there are a second surface layer 121 and a second isolation edge film 122; the second isolation edge film 122 is arranged at one end away from the second section 2.

[0118] The second section 2 includes a first overlapping joint and a second overlapping joint.

[0119] The first overlapping joint includes a first overlapping self-adhesive layer 210, and a first overlapping surface layer 211 and a third isolation edge film 212 arranged on opposite sides of the first overlapping self-adhesive layer 210.

[0120] The second overlapping joint includes a second overlapping self-adhesive layer 220, and a second overlapping surface layer 221 and a fourth isolation edge film 222 arranged on opposite sides of the second overlapping self-adhesive layer 220.

[0121] The third isolation edge film 212 and the fourth isolation edge film 222 are arranged opposite to each other.

[0122] The first self-adhesive layer 110 and the first overlapping self-adhesive layer 210 are an integral whole, and the second self-adhesive layer 120 and the second overlapping self-adhesive layer 220 are an integral whole.

[0123] The first surface layer 111 and the first isolation edge film 112 do not overlap, and the area of the first surface layer 111 and the first isolation edge film 112 = the surface area of the first self-adhesive layer 110 away from the reinforcing layer; the area of the second surface layer 121 and the second isolation edge film 122 = the surface area of the second self-adhesive layer 120 away from the reinforcing layer 130.

[0124] The first isolation edge film 112 and the third isolation edge film 212 have the same size, and the second isolation edge film 122 and the fourth isolation edge film 222 have the same size.

[0125] The pre-compounded waterproof coiled material is symmetrically arranged along its horizontal center plane.

[0126] 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 overlapping self-adhesive layer 210 is 2 mm, the thickness of the second overlapping self-adhesive layer 220 is 2 mm, and the thickness of the reinforcing layer 130 is 0.075 mm.

[0127] The first self-adhesive layer 110, the second self-adhesive layer 120, the first overlapping self-adhesive layer 210 and the second overlapping self-adhesive layer 220 are obtained by scraping the following self-adhesive materials; by weight, the raw materials for preparing the self-adhesive materials include:

[0128] 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.

[0129] 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 diisopropyl xanthic 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].

[0130] The dispersant is a first dispersant and a second dispersant.

[0131] The preparation method of the self-adhesive compound includes the following steps:

[0132] (1) Mix the asphalt and the plasticizer, and stir well at 150°C to dehydrate.

[0133] (2) Continue to mix the tackifier and the first dispersant, and stir well at 170°C to form a rubber-asphalt spatial network structure.

[0134] The first dispersant is 50% of the total amount of the dispersant.

[0135] (3) Continue to 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.

[0136] (4-1) Continue to mix the chloride salt, and stir well at 160°C to catalyze the cohesive strength of the system.

[0137] (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 balance of the system, and reduce the surface tension.

[0138] (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.

[0139] (4-4) Continue to mix the wollastonite powder, and stir well at 140°C.

[0140] (4-5) Continue to mix the anti-aging agent, and stir well at 140°C to obtain the self-adhesive compound.

[0141] Example 2

[0142] This example provides a pre-compound waterproof coil. The structure of the pre-compound waterproof coil in this example is the same as that in Example 1.

[0143] In this embodiment, the first self - adhesive layer 110, the second self - adhesive layer 120, the first overlapping self - adhesive layer 210 and the second overlapping self - adhesive layer 220 are obtained by scraping the following self - adhesive materials; by weight, the raw materials for preparing the self - adhesive materials include:

[0144] 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;

[0145] 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 Guike 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 anti - aging agent is tris(2,4 - di - tert - butylphenyl) phosphite.

[0146] The dispersant is a first dispersant and a second dispersant.

[0147] 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 material are the same as those in Example 1.

[0148] Example 3

[0149] This embodiment provides a pre - composite waterproof coiled material. The structure of the pre - composite waterproof coiled material in this embodiment is the same as that in Example 1;

[0150] In this embodiment, the first self - adhesive layer 110, the second self - adhesive layer 120, the first overlapping self - adhesive layer 210 and the second overlapping self - adhesive layer 220 are obtained by scraping the following self - adhesive materials; by weight, the raw materials for preparing the self - adhesive materials include:

[0151] 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 anti - aging agent;

[0152] 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 anti-aging agent is poly(butanedioic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinoethanol) ester).

[0153] The dispersant is a first dispersant and a second dispersant.

[0154] 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.

[0155] Example 4

[0156] This example provides a pre-composite waterproof coil, and the structure of the pre-composite waterproof coil in this example is the same as that in Example 1;

[0157] The raw materials for preparing the self-adhesive compound in this example are the same as those in Example 1, except that the chloride salt is only zinc chloride.

[0158] Example 5

[0159] This example provides a pre-composite waterproof coil, and the structure of the pre-composite waterproof coil in this example is the same as that in Example 1;

[0160] The raw materials for preparing the self-adhesive compound in this example are the same as those in Example 1, except that the chloride salt is only ferric chloride.

[0161] Example 6

[0162] This example provides a pre-composite waterproof coil, and the structure of the pre-composite waterproof coil in this example is the same as that in Example 1;

[0163] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1;

[0164] The preparation method of the self-adhesive compound includes the following steps:

[0165] (1) Mix the asphalt and the plasticizer, and stir well at 140 °C for dehydration;

[0166] (2) Continuously mix the tackifier and the first dispersant, and stir well at 160 °C to form a rubber-asphalt spatial network structure;

[0167] The first dispersant accounts for 50% of the total amount of dispersants;

[0168] (3) Continuously mix the silane-modified resin with the second dispersant and stir well at 160 °C to further form a rubber-resin-asphalt three-dimensional network structure;

[0169] (4-1) Continuously mix the chloride salt and stir well at 150 °C to catalyze the cohesive strength of the system;

[0170] (4-2) Continuously mix the 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;

[0171] (4-3) Continuously mix the stabilizer and stir well at 130 °C to improve the bonding performance and durability of the self-adhesive compound;

[0172] (4-4) Continuously mix the wollastonite powder and stir well at 130 °C;

[0173] (4-5) Continuously mix the anti-aging agent and stir well at 130 °C to obtain the self-adhesive compound.

[0174] Example 7

[0175] This example provides a pre-composite waterproof coiled material. The structure of the pre-composite waterproof coiled material in this example is the same as that in Example 1;

[0176] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1;

[0177] The method for preparing the self-adhesive compound includes the following steps:

[0178] (1) Mix the asphalt and the plasticizer and stir well at 160 °C for dehydration;

[0179] (2) Continuously mix the tackifier and the first dispersant and stir well at 180 °C to form a rubber-asphalt three-dimensional network structure;

[0180] The first dispersant accounts for 50% of the total amount of dispersants;

[0181] (3) Continuously mix the silane-modified resin with the second dispersant and stir well at 180 °C to further form a rubber-resin-asphalt three-dimensional network structure;

[0182] (4-1) Continuously mix the chloride salt and stir well at 170 °C to catalyze the cohesive strength of the system;

[0183] (4-2) Continuously mix the starch and stir well at 160 °C to adjust the consistency and stability of the self-adhesive compound, maintain the balance of the system, and reduce the surface tension;

[0184] (4-3) Continuously mix the stabilizer and stir well at 150°C to improve the bonding performance and durability of the self-adhesive compound.

[0185] (4-4) Continuously mix wollastonite powder and stir well at 150°C.

[0186] (4-5) Continuously mix the anti-aging agent and stir well at 150°C to obtain the self-adhesive compound.

[0187] Example 8

[0188] This example provides a pre-composite waterproofing membrane. The structure of the pre-composite waterproofing membrane in this example is the same as that in Example 1.

[0189] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1.

[0190] The preparation method of the self-adhesive compound in this example is the same as that in Example 1, except that the first dispersant in step (2) is 30% of the total amount of the dispersant.

[0191] Example 9

[0192] This example provides a pre-composite waterproofing membrane. The structure of the pre-composite waterproofing membrane in this example is the same as that in Example 1.

[0193] The composition of the raw materials for preparing the self-adhesive compound in this example is the same as that in Example 1.

[0194] The preparation method of the self-adhesive compound in this example is the same as that in Example 1, except that the first dispersant in step (2) is 70% of the total amount of the dispersant.

[0195] Example 10

[0196] This example provides a pre-composite waterproofing membrane. 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 overlapping self-adhesive layer 210 is 0.5 mm, the thickness of the second overlapping self-adhesive layer 220 is 0.5 mm, and the thickness of the reinforcing layer 130 is 0.07 mm, the rest are the same as those in Example 1.

[0197] Example 11

[0198] This example provides a pre-composite waterproofing membrane. 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 overlapping self-adhesive layer 210 is 4 mm, the thickness of the second overlapping self-adhesive layer 220 is 4 mm, and the thickness of the reinforcing layer 130 is 0.08 mm, the rest are the same as those in Example 1.

[0199] Comparative Example 1

[0200] This comparative example provides a pre-composite waterproofing membrane, and the structure of the pre-composite waterproofing membrane in this example is the same as that in Example 1;

[0201] The raw material composition of the self-adhesive material in this comparative example is the same as that in Example 1;

[0202] In this comparative example, the preparation method of the self-adhesive material comprises the following steps:

[0203] (1) Mix asphalt and plasticizer and stir thoroughly at 150°C to dehydrate;

[0204] (2) Continue to mix the thickener and stir thoroughly at 170°C;

[0205] (3) Continue to mix the silane-modified resin and dispersant and stir thoroughly at 170°C;

[0206] (4-1) Continue to mix the chloride salt and stir thoroughly at 160°C to increase the cohesive strength of the catalytic system;

[0207] (4-2) Continue to mix the starch and stir thoroughly at 150°C to adjust the consistency and stability of the self-adhesive material, maintain the system balance, and reduce the surface tension;

[0208] (4-3) Continue to mix the stabilizer and stir thoroughly at 140°C to improve the bonding performance and durability of the self-adhesive material;

[0209] (4-4) Continue to mix the wollastonite powder and stir thoroughly at 140°C;

[0210] (4-5) Continue to mix the anti-aging agent and stir thoroughly at 140°C to obtain a self-adhesive material.

[0211] Comparative Example 2

[0212] This comparative example provides a pre-composite waterproofing membrane, and the structure of the pre-composite waterproofing membrane in this example is the same as that in Example 1;

[0213] The raw material composition of the self-adhesive material in this comparative example is the same as that in Example 1;

[0214] In this comparative example, the preparation method of the self-adhesive material comprises the following steps:

[0215] (1) Mix asphalt and plasticizer and stir thoroughly at 150°C to dehydrate;

[0216] (2) Continue to mix the tackifier and dispersant and stir them thoroughly at 170°C to form a rubber-asphalt spatial network structure;

[0217] (3) Continue to mix the silane-modified resin and stir thoroughly at 170°C;

[0218] (4-1) Continuously mix the chloride salt and stir well at 160 °C to catalyze the cohesive strength of the catalyst system;

[0219] (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 system balance, and reduce the surface tension;

[0220] (4-3) Continuously mix the stabilizer and stir well at 140 °C to enhance the bonding performance and durability of the self-adhesive compound;

[0221] (4-4) Continuously mix the wollastonite powder and stir well at 140 °C;

[0222] (4-5) Continuously mix the anti-aging agent and stir well at 140 °C to obtain the self-adhesive compound.

[0223] Comparative Example 3

[0224] This comparative example provides a pre-composite waterproof coiled material, and the structure of the pre-composite waterproof coiled material in this example is the same as that in Example 1;

[0225] In this comparative example, the composition of the raw materials for preparing the self-adhesive compound is the same as that in Example 1;

[0226] In this comparative example, the preparation method of the self-adhesive compound includes the following steps:

[0227] (1) Mix the asphalt and the plasticizer and stir well at 150 °C for dehydration;

[0228] (4-1) Continuously mix the chloride salt and stir well at 160 °C to catalyze the cohesive strength of the catalyst system;

[0229] (2) Continuously mix the tackifier and the first dispersant and stir well at 170 °C to form a rubber-asphalt spatial network structure;

[0230] The first dispersant is 50% of the total amount of the dispersant;

[0231] (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;

[0232] (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 system balance, and reduce the surface tension;

[0233] (4-3) Continuously mix the stabilizer and stir well at 140 °C to enhance the bonding performance and durability of the self-adhesive compound;

[0234] (4-4) Continuously mix the wollastonite powder and stir well at 140 °C;

[0235] (4 - 5) Continue to mix the anti - aging agent and stir well at 140 °C to obtain the self - adhesive compound.

[0236] The water absorption rate and water resistance of the self - adhesive compounds provided in Examples 1 - 11 and Comparative Examples 1 - 3 were tested. The results are shown in Table 1. When testing, first prepare standard specimens of the self - adhesive layer from the self - adhesive compound according to the conventional method in the art.

[0237] The test method for the 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 put the specimen into the third - grade water specified in GB / T 6682 - 2008, and immerse it 25 mm below the liquid level, and soak continuously for 7 d ± 2 h; after the soaking is over, immediately take out and remove the surface clear water, weigh the mass m1 after soaking in water, and calculate the water absorption rate:

[0238] Water absorption rate = [(m1 - m0) / m0]×100%; the dimensions of m1 and m0 are g.

[0239] 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 put the specimen into the third - grade water specified in GB / T 6682 - 2008, and immerse it 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 over, immediately take out and observe whether there are phenomena such as cracks, delamination, bubbles or breakage on the specimen.

[0240] Table 1

[0241]

[0242] The peel strength and joint water - tightness of the pre - composite waterproof membranes provided in Examples 1 - 11 and the pre - composite waterproof membranes provided in Comparative Examples 1 - 3 were tested. The results are shown in Table 2, where:

[0243] The test method for the peel strength side and the test method for the joint water - tightness are carried out in accordance with T / CWA 302 - 2023 "Test Methods for Engineering Requirements of Building Waterproof Materials";

[0244] The water - channeling resistance of the pre - composite waterproof membranes provided in Examples 1 - 11 and the pre - composite waterproof membranes provided in Comparative Examples 1 - 3 was tested. The results are shown in Table 3. The water - channeling resistance was tested according to the standard of JC / T2428 - 2017. Among them, the better the water - channeling resistance, the better the creep performance of the self - adhesive layer in the obtained pre - composite waterproof membrane.

[0245] Table 2

[0246]

[0247] Table 3

[0248]

[0249] In summary, for the pre - composite waterproof coiled material provided by the present invention, through the settings of the first self - adhesive layer, the second self - adhesive layer, the first overlapping self - adhesive layer and the second overlapping self - adhesive layer, 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 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 - asphalt spatial network structure, while adding all at once can only obtain a rubber - asphalt structure with slightly worse effect.

[0250] The above are only specific embodiments 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 by any person skilled in the art within the technical scope disclosed by the present invention fall within the protection scope and the disclosure scope of the present invention.

Claims

1. A pre-composite waterproofing membrane, characterized in that, The pre - composite waterproof coil includes a first section and a second section connected to one end of the first section; the shape of the pre - composite waterproof coil presents a "Y" shape; The first section includes a first self - adhesive layer and a second self - adhesive layer stacked; At least one layer of reinforcing layer is also arranged in the first section; the length of the reinforcing layer is less than the length of the first section; On the surface of the first self - adhesive layer or the second self - adhesive layer away from the reinforcing layer, a first surface layer and a first isolation edge film are arranged, and a second surface layer and a second isolation edge film are arranged on the opposite surface of the first section of the first surface layer; The first isolation edge film and the second isolation edge film are arranged at one end of the first section away from the second section; The second section includes a first overlapping joint and a second overlapping joint; The first overlapping joint includes a first overlapping self - adhesive layer, and a first overlapping surface layer and a third isolation edge film arranged on opposite sides of the first overlapping self - adhesive layer; The second overlapping joint includes a second overlapping self - adhesive layer, and a second overlapping surface layer and a fourth isolation edge film arranged on opposite sides of the second overlapping self - adhesive layer; The third isolation edge film and the fourth isolation edge film are arranged oppositely; At least one of the first self - adhesive layer, the second self - adhesive layer, the first overlapping self - adhesive layer and the second overlapping self - adhesive layer is prepared from a self - adhesive material; the self - adhesive material includes the following components by weight: Asphalt 40 - 50 parts Plasticizer 5 - 10 parts Dispersant 0.1 - 2 parts Tackifier 18 - 25 parts Silane - modified resin 15 - 25 parts Chloride salt 1 - 3 parts Starch 8 - 15 parts Stabilizer 0.2 - 2 parts Filler 10 - 15 parts Antioxidant 0.2 - 1 part; The chloride salt includes zinc chloride and / or ferric trichloride; The preparation steps of the self - adhesive material include: Carry out 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 for a second stirring treatment; Add a silane - modified resin and a second dispersant to the second mixture for a third stirring treatment; Add the chloride salt, starch, stabilizer, filler and antioxidant to the third mixture in sequence and stir evenly to obtain the self - adhesive material; Among them, the dispersant is composed of a first dispersant and a second dispersant.

2. The prefabricated composite waterproof coiled material according to claim 1, wherein The first isolation edge film has the same size as the third isolation edge film and / or the fourth isolation edge film; and / or The second isolation edge film has the same size as the fourth isolation edge film and / or the third isolation edge film.

3. The prefabricated composite waterproof coiled material according to claim 1, characterized in that, 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 first overlapping self - adhesive layer is 0.5 - 4 mm; and / or The thickness of the second overlapping self - adhesive layer is 0.5 - 4 mm; and / or The thickness of the reinforcing layer is more than 0.02 mm.

4. The prefabricated composite waterproof coil according to claim 1, characterized in that, The asphalt is selected from at least one of 70 - grade asphalt and 90 - grade asphalt; and / or The plasticizer is selected from at least one of didecyl phthalate and dioctyl terephthalate; and / or The dispersant is selected from modified polyacrylic acid hyperdispersant; and / or The tackifier is selected from organosilicon tackifiers; and / or The silane-modified resin is selected from at least one of 3-isocyanatopropyltrimethoxysilane and 3-isocyanatopropyltriethoxysilane.

5. The pre-composite waterproof coiled material according to claim 1, characterized in that, The stabilizer is selected from diisopropylxanthic tetrasulfide; and / or The oil absorption value of the filler is ≤ 70 g / 100 g; and / or The filler is selected from wollastonite powder; and / or The anti-aging agent is selected from at least one of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], tris(2,4-di-tert-butylphenyl) phosphite, and polybutanedioic acid (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinoethanol) ester.

6. The prefabricated composite waterproofing membrane according to claim 1, wherein, 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.

7. The prefabricated composite waterproof coiled material according to claim 1, characterized in that, The first dispersant accounts for more than 40% of the total mass of the dispersants.

8. The prefabricated composite waterproof coiled material according to claim 1, characterized in that, 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.

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