Non-asphalt-based self-adhesive glue and pre-laid waterproof coiled material and application thereof

Abstract

The invention provides a non-asphalt-based self-adhesive and a pre-laid waterproof coiled material and application thereof. The non-asphalt-based self-adhesive glue is prepared from the following raw materials in parts by weight: 120 to 150 parts of environment-friendly softening oil, 50 to 100 parts of petroleum resin, 15 to 35 parts of SBS elastomer resin, 25 to 35 parts of butadiene styrene rubber, 10 to 18 parts of high-temperature modified wax, 5 to 15 parts of density regulator, 5 to 10 parts of pour point depressant and 35 to 40 parts of inorganic filler. The pre-paved waterproof coiled material comprises a sand layer, a first adhesive layer, a reinforced tire base layer, a second adhesive layer and an anti-sticking layer which are arranged in sequence. According to the non-asphalt-based self-adhesive glue provided by the invention, a high-performance non-asphalt-based self-adhesive lap joint pre-paved anti-adhesive waterproof coiled material can be obtained, and compared with an asphalt pre-paved waterproof coiled material, the non-asphalt-based self-adhesive lap joint pre-paved anti-adhesive waterproof coiled material has the characteristics of being more environment-friendly, more durable, better in adhesion and better in waterproof effect; compared with the existing high-molecular pre-paved waterproof coiled material, the high-molecular pre-paved waterproof coiled material has the characteristics of lower cost, higher manufacturing efficiency, better fitness, excellent comprehensive performance and the like.

Description

Technical Field

[0001] The present invention relates to the field of building waterproofing, and in particular to a non-asphalt-based self-adhesive adhesive and a pre-laid waterproofing membrane (a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproofing membrane) and applications thereof. Background Art

[0002] Pre-laid waterproofing membrane is a specially designed waterproofing material widely used in construction projects to provide reliable waterproofing protection. It can be pre-laid and quickly installed at the construction site, and it has a certain degree of adhesion and waterproofing effect. Existing pre-laid waterproofing membranes are mainly concentrated into two types: polymer-based pre-laid waterproofing membranes and asphalt-based pre-laid waterproofing membranes. For example, the invention "Pre-laid Waterproofing Membrane and Its Preparation Method, Application No. CN202210915602.4" disclosed by Kunshan Keshun Waterproof Materials Co., Ltd. provides a pre-laid waterproofing membrane and its preparation method, which aims to solve the problem of the anti-sticking particle layer in pre-laid waterproofing membrane easily falling off and failing. The membrane includes a sheet layer, a self-adhesive layer, an oil-sealing coating, and a UV-resistant coating. The preparation methods of the self-adhesive layer and the oil-sealing coating and the composition of the coating are described in detail. The design of this membrane can effectively prevent the anti-sticking particle layer from easily falling off and failing, thereby improving the durability and waterproofing performance of the membrane. For example, in the invention "Cross-laminated membrane pre-laid waterproofing membrane, application number CN201910534095.8" disclosed by Jiangsu Karen Building Materials Co., Ltd., the high physical properties of the waterproofing membrane, such as tensile strength, elongation, and dimensional stability, are achieved through the design of cross-laminated membrane pre-laid waterproofing membrane. At the same time, the invention uses artificial synthetic sand, which, after carbonization, calcification, surface roughening and screening, has high strength and reasonable gradation, is resistant to ultraviolet rays, and ensures the bonding strength of the waterproofing membrane. It also uses a specific combination of waterproof layer and adhesive layer to provide waterproof performance. For example, in the invention "A high-performance pre-laid waterproofing membrane and preparation method, application number CN202410962932.8" disclosed by Tianjin Yushen Building Waterproof Materials Co., Ltd., a series of high-performance pre-laid waterproofing membranes are used, including a polymer-modified asphalt layer, a base layer, a polymer-modified asphalt layer and a protective layer, as well as a combination of tempered silicon crystal granular material and a composite coating. These combinations significantly increase the surface hardness of pre-laid waterproof membranes and provide a sufficient isolation effect, thereby improving the puncture resistance of the pre-laid waterproof membranes, reducing the possibility of the polymer-modified asphalt layer of the pre-laid waterproof membranes being punctured or scratched by steel bars, and extending the service life of the pre-laid waterproof membranes. The invention also uses a water-activated factor masterbatch, a coupling agent, cement, and a water-soluble adhesive as raw materials, and is prepared by mixing the water-activated factor masterbatch and the coupling agent to improve the peel strength of the pre-laid waterproof membranes.

[0003] However, polymer-based pre-laid waterproofing membranes primarily use polymer sheets such as HDPE / TPO / PVC as reinforcing materials, and use hot-melt adhesives / butyl adhesives as adhesives. During use, due to the relatively thick sheets, the adherence during construction is relatively poor. Furthermore, because they use only polymer materials, their costs are relatively high or the product performance is average. Furthermore, due to equipment limitations during the production process, their production capacity is generally low. Generally, it is necessary to first prepare the sheets, then coat them with glue and sand, resulting in high overall energy consumption and low efficiency. Compared to polymer-based pre-laid waterproofing membranes, asphalt-based pre-laid waterproofing membranes have significantly improved production efficiency and lower material costs. However, because most of the raw materials used are asphalt, asphalt fumes are easily released during the production process, and the source of the raw materials is relatively environmentally unfriendly. Furthermore, the modified asphalt raw materials commonly used have poor compatibility with asphalt, resulting in average anti-aging properties for the material. There is an urgent need to provide a new type of high-performance non-asphalt-based self-adhesive overlap pre-laid waterproofing membrane. Summary of the Invention

[0004] To address the above-mentioned technical problems, the present invention provides a non-asphalt-based self-adhesive adhesive, a pre-laid waterproofing membrane, and its application. The present invention provides a non-asphalt-based self-adhesive adhesive for pre-laid waterproofing membranes. The non-asphalt-based self-adhesive adhesive of the present invention can produce a high-performance non-asphalt-based self-adhesive overlapped pre-laid reverse-adhesive waterproofing membrane. Compared to asphalt-based pre-laid waterproofing membranes, the non-asphalt-based self-adhesive adhesive is more environmentally friendly, more durable, has better adhesion, and provides superior waterproofing. Compared to existing polymer pre-laid waterproofing membranes, the non-asphalt-based self-adhesive adhesive offers lower costs, more efficient manufacturing, better conformability, and superior overall performance.

[0005] In a first aspect, the present invention provides a non-asphalt-based self-adhesive adhesive comprising the following raw materials in parts by weight: 120-150 parts of environmentally friendly softening oil; 50-100 parts of petroleum resin; 15-35 parts of SBS elastomer resin; 25-35 parts of styrene-butadiene rubber; 10-18 parts of high temperature modified wax; 5-15 parts of density regulator; 5-10 parts of pour point depressant; 35-40 parts of inorganic filler.

[0006] Preferably, the non-asphalt-based self-adhesive comprises the following raw materials in parts by weight: Environmentally friendly softening oil 127-150 parts; 60-80 parts of petroleum resin; 18-35 parts of SBS elastomer resin; 28-35 parts of styrene-butadiene rubber; 10-15 parts of high temperature modified wax; 5-10 parts of density regulator; 5-8 parts of pour point depressant; 35-37 parts of inorganic filler.

[0007] The non-asphalt-based self-adhesive of this invention significantly enhances the adhesion, weather resistance, and mechanical properties of waterproof membranes by optimizing the ratio of its components. The adhesive exhibits excellent low-temperature flexibility, high-temperature resistance, and crack resistance, ensuring the long-term stability of the waterproof membrane. Furthermore, the adhesive's workability is improved, facilitating application and handling during construction, while also enhancing the membrane's mechanical strength, compressive strength, and puncture resistance. This non-asphalt-based self-adhesive is suitable for a variety of construction and engineering applications, providing long-term, stable waterproof protection.

[0008] Preferably, the environmentally friendly softening oil is rubber oil and / or cable oil.

[0009] More preferably, the rubber oil has a pour point ≤ -10°C, ash content ≤ 2.0%, aniline point 30-45°C, flash point ≥ 220°C, and rotational viscosity 2000-5000 mPa·s. The cable oil has a pour point ≤ -5°C, ash content ≤ 1.0%, aniline point 20-35°C, flash point ≥ 240°C, and rotational viscosity 2500-5000 mPa·s.

[0010] Preferably, the petroleum resin includes hydrogenated C9 resin and / or hydrogenated C5 resin.

[0011] More preferably, the softening point of the hydrogenated C9 resin or the hydrogenated C5 resin is 110-130° C., and the ash content is ≤0.5%.

[0012] Preferably, the SBS elastomer resin is self-antioxidant Sa-SBS, melon claw-shaped SBS or linear SBS.

[0013] More preferably, the main graft of the self-antioxidant Sa-SBS is β-(4-hydroxyphenyl-3,5-di-tert-butyl) propionate.

[0014] More preferably, the main graft of the melon claw-shaped SBS is 1-adamantane (meth)acrylate.

[0015] More preferably, the molecular weight of the linear SBS is 150,000-200,000, and S / B=(2-4) / (5-8).

[0016] Preferably, the styrene butadiene rubber is styrene butadiene rubber (SBR) or modified grafted styrene butadiene rubber (MSBR).

[0017] More preferably, the grafting monomer of the modified grafted styrene-butadiene rubber (MSBR) is diacetone acrylamide.

[0018] Preferably, the high-temperature modified wax is selected from one or more of modified grafted oxidized polyethylene wax, polyethylene wax, and polypropylene wax, preferably modified grafted oxidized polyethylene wax or polyethylene wax.

[0019] More preferably, the grafting monomer of the modified grafted oxidized polyethylene wax is diacetone acrylamide. The polyethylene wax has a softening point of 115-130° C. and an ash content of ≤1.0%.

[0020] Preferably, the density regulator is expanded microspheres or hollow ceramic balls, preferably expanded microspheres.

[0021] More preferably, the expanded microspheres have an initial foaming temperature of ≥130°C and an expiration temperature of ≥200°C.

[0022] Preferably, the pour point depressant is selected from one or more of mercaptoethanol, poly-alpha-olefin, mercaptopropionic acid, and methyl ethyl ketone, preferably mercaptoethanol.

[0023] More preferably, the pour point depressant comprises mercaptoethanol (AR, purity ≥ 98%), poly-alpha-olefin (AR, purity ≥ 98%), and mercaptopropionic acid (AR, purity ≥ 98%).

[0024] Preferably, the inorganic filler is selected from one or more of heavy calcium carbonate, talc, and light calcium carbonate. The mesh size of the inorganic filler is preferably 200-400 mesh, and the volatile matter is ≤2%.

[0025] Preferably, the molecular weight of the styrene-butadiene rubber is 150,000-200,000, and the ash content is ≤1.0%.

[0026] Preferably, the high temperature modified wax has a softening point of 110-135° C., an ash content of ≤1.5%, and an acid value of 30-60.

[0027] By optimizing the types and parameter combinations of various components, such as rubber oil, hydrogenated C9 / C5 petroleum resin, modified SBS, modified styrene-butadiene rubber, modified polyethylene wax, and expanded microspheres, the present invention significantly improves the overall performance of the non-asphalt-based self-adhesive, including adhesion, high-temperature resistance, and weather resistance. It also enhances the rubber's crack resistance, puncture resistance, and workability, helping to improve its interaction with other layers of the pre-laid waterproof membrane of the present invention, ensuring the membrane's stability and long-term waterproofing performance in extreme environments. The specific non-asphalt-based self-adhesive of the present invention enhances the overall performance of non-asphalt-based self-adhesives and adapts to a wider range of construction and engineering needs.

[0028] In a second aspect, the present invention provides a method for preparing the non-asphalt-based self-adhesive, comprising the following steps: 1) Mix petroleum resin and environmentally friendly softening oil, heat to 170-180°C and stir to obtain a first mixture.

[0029] 2) Mixing the first mixture with SBS elastomer resin and styrene-butadiene rubber, maintaining the temperature at 170-180° C. and continuing stirring to obtain a second mixture.

[0030] 3) The second mixture, the pour point depressant, and the density regulator are mixed and stirred to obtain a third mixture.

[0031] 4) Mixing the third mixed material with the inorganic filler, maintaining the temperature at 170-180° C. and stirring, adding high-temperature modified wax and continuing to stir to obtain a non-asphalt self-adhesive adhesive.

[0032] In a third aspect, the present invention provides the use of the non-asphalt-based self-adhesive adhesive in the preparation of high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane.

[0033] In a fourth aspect, the present invention provides a high-performance non-asphalt-based self-adhesive overlapping pre-laid waterproof membrane, comprising a sand layer, a first adhesive layer, a reinforcing base layer, a second adhesive layer, and a release layer, arranged in sequence; the first adhesive layer and the second adhesive layer use the above-mentioned non-asphalt-based self-adhesive adhesive. In the present invention, both adhesive layers use the non-asphalt-based self-adhesive material developed by the present invention, combined with a multi-layer extruded cross membrane as a reinforcing material, and an optimized structural design of a sand layer, a first adhesive layer, a reinforcing base layer, a second adhesive layer, and a release layer, resulting in a high-performance non-asphalt-based self-adhesive overlapping pre-laid waterproof membrane. Compared with conventional asphalt-based pre-laid waterproof membranes, it is more environmentally friendly, more durable, has better adhesion, and has a better waterproofing effect; compared with common polymer pre-laid waterproof membranes on the market, it has the characteristics of lower cost, more efficient manufacturing, and better conformability.

[0034] Preferably, the reinforced tire base layer is a four-layer PE cross-laminated film or a two-layer PE cross-laminated film.

[0035] Preferably, the isolation film layer is an MPET isolation film, a PE isolation film or an aluminized PET isolation film.

[0036] Preferably, the sand layer is selected from one or more of sintered sand, reaction sand and ceramsite.

[0037] Preferably, the thickness of the first adhesive layer is 0.4-0.6 mm; the thickness of the second adhesive layer is 0.9-1.1 mm.

[0038] Preferably, the thickness of the sand layer is 0.5-1.2 mm.

[0039] Preferably, the sintered sand, reaction sand or ceramsite used in the sand layer has a mesh size of 16-40 meshes and a volatile matter of ≤2.0%.

[0040] Preferably, the thickness of the reinforced tire base layer is 10.0-32.0C; preferably, the thickness of the four-layer PE cross-laminated film is 18.0-32.0C, and the thickness of the two-layer PE cross-laminated film is 10.0-18.0C.

[0041] Preferably, the thickness of the isolation film layer is 2.0-4.0C.

[0042] In this invention, the multi-layered structure of the waterproofing membrane complements each other, collectively enhancing the membrane's overall performance. The first layer is a sand surface layer, serving as a protective and adhesive layer. It not only enhances the membrane's weather resistance and puncture resistance, but also ensures effective, skin-like adhesion to the building surface. The second layer is a first non-asphalt-based self-adhesive layer, primarily providing excellent bonding properties, allowing the membrane to firmly adhere to the base surface during construction, ensuring the durability of the waterproofing effect. Interaction with the other layers also enhances the membrane's overall performance. The third layer is a reinforced base layer, providing support and improving the membrane's mechanical properties, including tension, elongation, tearing strength, and puncture resistance, further enhancing the membrane's structural stability and compressive strength. The fourth layer is a second non-asphalt-based self-adhesive layer, further enhancing the membrane's adhesion, ensuring a secure bond with the contact surface, and further improving the membrane's overall performance. The fifth layer is an anti-sticking layer, preventing unnecessary adhesion during construction. This layer must be removed after construction is complete to ensure a good bond between the membrane and the next layer. By optimizing each layer and its combination, and through the synergistic effect of each layer, the present invention achieves not only excellent waterproof performance, but also excellent weather resistance, puncture resistance, and mechanical properties, while maintaining good construction adaptability. This multi-layer design ensures that the advantages of each layer complement each other, allowing the waterproof membrane to provide long-term and reliable waterproofing in practical applications.

[0043] The beneficial effects of the present invention are at least that: the present invention develops a non-asphalt-based self-adhesive adhesive, which is combined with a multi-layer extruded cross membrane as a reinforcing material to obtain a high-performance non-asphalt-based self-adhesive overlap pre-laid reverse-adhesive waterproof membrane. The pre-laid waterproof membrane structure provided by the present invention is designed to be a thin structure and has excellent comprehensive performance. Compared with conventional asphalt pre-laid waterproof membranes, it is more environmentally friendly, more durable, has better adhesion, and has better waterproofing effect; compared with the common polymer pre-laid waterproof membranes on the market, it has the characteristics of lower cost, more efficient manufacturing, and better conformability. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 Schematic diagram of a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention are described clearly and completely below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0047] The endpoints of the ranges and any values ​​disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoints of each range, the endpoints of each range and individual point values, and the individual point values ​​can be combined with each other to form one or more new numerical ranges, and these numerical ranges should be considered to be specifically disclosed in the present invention.

[0048] Where specific techniques or conditions are not specified in the examples of the present invention, the techniques or conditions described in the literature in the field or in the product specifications were followed. All devices, instruments, reagents, etc. used, where the manufacturer is not specified, are conventional products available through regular channels. All experimental reagents and raw materials involved are commercially available, and all reagents are analytically pure.

[0049] In the embodiment of the present invention, the rubber oil has a pour point of ≤-10°C, an ash content of ≤2.0%, an aniline point of 30-45°C, a flash point of ≥220°C, and a rotational viscosity of 2000-5000 mPa·s. The cable oil has a pour point of ≤-5°C, an ash content of ≤1.0%, an aniline point of 20-35°C, a flash point of ≥240°C, and a rotational viscosity of 2500-5000 mPa·s. The softening point of the hydrogenated C9 resin / hydrogenated C5 resin is 110-130°C, and the ash content is ≤0.5%. The Sa-SBS is a self-antioxidant Sa-SBS, the main grafted component of which is β-(4-hydroxyphenyl-3,5-di-tert-butyl) propionate, and the preparation method thereof is described in Example 1 of the published patent application CN118702845B. The main grafted component of the melon claw-shaped SBS is 1-adamantane (meth)acrylate, and the preparation method thereof is described in Example 6 of the published patent application CN115181225B. The linear SBS has a molecular weight of 200,000, a linear structure, and an S / B ratio of 3 / 7. Styrene-butadiene rubber (SBR / MSBR) has a molecular weight of 150,000, an effective content ≥85%, and an ash content ≤1.0%. The grafted monomer of the modified grafted styrene-butadiene rubber (MSBR) is diacetone acrylamide, and the preparation method is described in Example 2 of the published patent application CN115124663B. Polyethylene wax / modified polyethylene wax (modified grafted oxidized polyethylene wax) has a softening point of 110-135°C, an ash content ≤1.5%, and an acid value of 30-60. The preparation method of the modified grafted oxidized polyethylene wax is described in Example 2 of the published patent application CN115141326B. Expanded microspheres, mercaptoethanol, polyalphaolefin, light calcium carbonate, reaction sand, sintered sand, four-layer cross membrane, two-layer cross membrane, MPET separator, aluminized PET separator, and PE separator are all commercially available products in this field.

[0050] In an embodiment of the present invention, a method for preparing a non-asphalt-based self-adhesive adhesive comprises the following steps: 1) Weigh and add petroleum resin and environmentally friendly softening oil according to the formula ratio, and start heating. When the temperature rises to 170-180℃, start stirring and keep stirring for 30 minutes.

[0051] 2) Add the formulated amount of SBS elastomer resin and styrene-butadiene rubber, and continue stirring at 170-180°C for 120 minutes.

[0052] 3) Add the formulated amount of pour point depressant, stir for 30 minutes, then add the density regulator and continue stirring for 60 minutes.

[0053] 4) Add the formulated amount of inorganic filler, keep stirring at 170-180°C for 60 minutes, then add the formulated amount of high-temperature modified wax, and continue stirring for 30 minutes to obtain the non-asphalt self-adhesive adhesive.

[0054] Example 1 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes, the formulation of which is as follows:

[0055] The high-performance non-asphalt-based self-adhesive lap pre-laid waterproof membrane in this embodiment is prepared using the non-asphalt-based self-adhesive adhesive according to the steps of the above-mentioned embodiment of the present invention.

[0056] This embodiment provides a high-performance non-asphalt-based self-adhesive overlap pre-paved waterproof membrane, such as Figure 1 As shown, the layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer; the thicknesses are, in order, 1.0 mm / 0.4 mm / 10°C / 1.1 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers use the non-asphalt-based self-adhesive provided in this embodiment; the other layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0057] Example 2 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0058] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 0.5mm / 0.4mm / 10C / 1.1mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0059] Example 3 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0060] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.5 mm / 10°C / 1.0 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0061] Example 4 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0062] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 0.8mm / 0.6mm / 19C / 0.9mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0063] Example 5 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0064] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.4 mm / 32°C / 1.1 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0065] Example 6 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0066] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 0.8mm / 0.4mm / 28C / 1.1mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0067] Example 7 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0068] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 0.9 mm / 0.5 mm / 25°C / 1.0 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0069] Example 8 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0070] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.4 mm / 10°C / 1.1 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: reactive sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0071] Example 9 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0072] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.6 mm / 18C / 0.9 mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: ceramsite; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0073] Example 10 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0074] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.4 mm / 18°C / 1.1 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: sintered sand; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0075] Example 11 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0076] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.6 mm / 13C / 0.9 mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: ceramsite; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0077] Example 12 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0078] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 0.8mm / 0.4mm / 18C / 1.1mm / 3.0C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: ceramsite; Reinforced tire base: four-layer cross membrane; Isolation film layer: MPET isolation film.

[0079] Example 13 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0080] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.0 mm / 0.4 mm / 12 cm / 1.1 mm / 3.0 cm. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: ceramsite; Reinforced tire base: two layers of cross membrane; Isolation film layer: aluminized PET isolation film.

[0081] Example 14 This embodiment provides a high-performance non-asphalt-based self-adhesive adhesive for overlapping pre-laid waterproof membranes. The method used is the same as that of Example 1, except that the formula composition is as follows:

[0082] This embodiment provides a high-performance non-asphalt-based self-adhesive overlapped pre-laid waterproof membrane. The layers are, in order, a sand layer, a first non-asphalt-based self-adhesive layer, a reinforcing base layer, a second non-asphalt-based self-adhesive layer, and a barrier film layer. The thicknesses are, in order, 1.2 mm / 0.4 mm / 10°C / 1.1 mm / 3.0°C. The first and second non-asphalt-based self-adhesive layers utilize the non-asphalt-based self-adhesive provided in this embodiment. The remaining layers are as follows: Sand layer: ceramsite; Reinforced tire base: four-layer cross membrane; Isolation film layer: PE isolation film.

[0083] Example 15 This embodiment provides a non-asphalt-based self-adhesive adhesive for waterproof membranes and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the expanded microspheres in the non-asphalt-based self-adhesive adhesive formula are replaced with hollow ceramic balls, and the modified polyethylene wax is replaced with polypropylene wax.

[0084] Example 16 This embodiment provides a non-asphalt-based self-adhesive adhesive for waterproof membranes and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the mercaptoethanol in the non-asphalt-based self-adhesive adhesive formula is replaced with methyl ethyl ketone.

[0085] Example 17 This embodiment provides a non-asphalt-based self-adhesive adhesive for waterproof membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the MSBR in the non-asphalt-based self-adhesive adhesive formula is replaced with SBR.

[0086] Example 18 This embodiment provides a non-asphalt-based self-adhesive adhesive for waterproof membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the Sa-SBS in the non-asphalt-based self-adhesive adhesive formula is replaced with linear SBS.

[0087] Example 19 This embodiment provides a non-asphalt-based self-adhesive adhesive for waterproofing membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproofing membrane. The only difference from Example 1 is that the amount of Sa-SBS in the non-asphalt-based self-adhesive adhesive formula is changed from 25 to 15, and the amount of MSBR in the non-asphalt-based self-adhesive adhesive formula is changed from 30 to 25.

[0088] Comparative Example 1 This comparative example provides a non-asphalt-based self-adhesive adhesive for waterproof membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the amount of MSBR in the non-asphalt-based self-adhesive adhesive formula is reduced to 22 parts, the amount of modified polyethylene wax is increased to 21 parts, and the amount of cable oil is increased to 50 parts.

[0089] Comparative Example 2 This comparative example provides a non-asphalt-based self-adhesive adhesive for waterproof membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the amount of cable oil in the non-asphalt-based self-adhesive adhesive formula is increased to 55 parts, the amount of hydrogenated C9 resin is reduced to 40 parts, and the amount of hydrogenated C5 resin is reduced to 5 parts.

[0090] Comparative Example 3 This comparative example provides a non-asphalt-based self-adhesive adhesive for waterproof membrane and a high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane. The only difference from Example 1 is that the amount of Sa-SBS is changed to 10 parts and the amount of MSBR is changed to 14 parts.

[0091] High-performance non-asphalt-based, self-adhesive, overlapped pre-applied waterproof membranes prepared in the Examples and Comparative Examples were tested according to QSDKS 132-2025 APF-5000Y Non-asphalt Polymer Pre-applied Waterproof Membrane (Published). Peel strength values ​​are averaged. Units for each test item are: Tensile strength (transverse / vertical) N / 50mm, Elongation at break (transverse / vertical)%, Puncture strength (N), Nail tear strength (N), Low-temperature flexibility (°C), Heat-aged low-temperature flexibility (°C), Roll-to-roll peel (N / mm), Heat-aged roll-to-roll peel (N / mm), Cement peel (N / mm), Heat-aged cement peel (N / mm), UV-aged cement peel (N / mm), Water impermeability (Pass / Fail), and Oil permeability (Number of sheets). Specific test results are shown in Table 1.

[0092] Table 1 Test data of the embodiments of the present invention and the comparative examples Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A non-asphalt-based self-adhesive adhesive, characterized in that: The invention comprises the following raw materials in parts by weight: 120-150 parts of environmentally friendly softening oil; 50-100 parts of petroleum resin; 15-35 parts of SBS elastomer resin; 25-35 parts of styrene-butadiene rubber; 10-18 parts of high temperature modified wax; 5-15 parts of density regulator; 5-10 parts of pour point depressant; 35-40 parts of inorganic filler.

2. The non-asphalt-based self-adhesive according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: Environmentally friendly softening oil 127-150 parts; 60-80 parts of petroleum resin; 18-35 parts of SBS elastomer resin; 28-35 parts of styrene-butadiene rubber; 10-15 parts of high temperature modified wax; 5-10 parts of density regulator; 5-8 parts of pour point depressant; 35-37 parts of inorganic filler.

3. The non-asphalt-based self-adhesive according to claim 1 or 2, characterized in that: The environmentally friendly softening oil is rubber oil and / or cable oil; and / or, the petroleum resin comprises hydrogenated C9 resin and / or hydrogenated C5 resin; And / or, the SBS elastomer resin is self-antioxidant Sa-SBS, melon claw-shaped SBS or linear SBS; And / or, the styrene-butadiene rubber is styrene-butadiene rubber (SBR) or modified grafted styrene-butadiene rubber (MSBR); And / or, the high temperature modified wax is selected from one or more of modified grafted oxidized polyethylene wax, polyethylene wax, and polypropylene wax; and / or, the density regulator is expanded microspheres or hollow ceramic spheres; and / or, the pour point depressant is selected from one or more of mercaptoethanol, poly-alpha-olefin, mercaptopropionic acid, and methyl ethyl ketone; And / or, the inorganic filler is selected from one or more of heavy calcium carbonate, talc, and light calcium carbonate.

4. The non-asphalt-based self-adhesive according to any one of claims 1 to 3, characterized in that: The molecular weight of the SBS elastomer resin and / or the styrene-butadiene rubber is 150,000-200,000; And / or, the high temperature modified wax has a softening point of 110-135° C., an ash content of ≤1.5%, and an acid value of 30-60.

5. The method for preparing the non-asphalt-based self-adhesive according to any one of claims 1 to 4, characterized in that: The following steps are involved: 1) Mix petroleum resin and environmentally friendly softening oil, heat to 170-180°C and stir to obtain a first mixture; 2) mixing the first mixture with SBS elastomer resin and styrene-butadiene rubber, maintaining the temperature at 170-180° C. and continuing stirring to obtain a second mixture; 3) mixing and stirring the second mixture, the pour point depressant, and the density regulator to obtain a third mixture; 4) Mix the third mixed material with the inorganic filler, maintain the temperature at 170-180° C. and stir, add the high-temperature modified wax and continue stirring.

6. Use of the non-asphalt-based self-adhesive adhesive according to any one of claims 1 to 4 in the preparation of high-performance non-asphalt-based self-adhesive overlap pre-laid waterproof membrane.

7. A high performance non-asphalt based self-adhesive overlap pre-laid waterproof membrane, characterized in that: The invention comprises a sand layer, a first adhesive layer, a reinforcing base layer, a second adhesive layer and an anti-sticking layer arranged in sequence; the first adhesive layer and the second adhesive layer adopt the non-asphalt-based self-adhesive adhesive according to any one of claims 1 to 4.

8. The high performance non-asphalt based self-adhesive overlap pre-paved waterproof membrane according to claim 7, characterized in that: The reinforced tire base layer is a four-layer PE cross-laminated film or a two-layer PE cross-laminated film.

9. The high performance non-asphalt based self-adhesive overlap pre-laid waterproof membrane according to claim 7 or 8, characterized in that: The isolation film layer is an MPET isolation film, a PE isolation film or an aluminized PET isolation film.

10. The high-performance non-asphalt-based self-adhesive overlap pre-paved waterproof membrane according to any one of claims 7 to 9, characterized in that: The sand layer is selected from one or more of sintered sand, reaction sand and ceramsite.

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