An exposed non-asphalt-based polymer self-adhesive waterproofing membrane and a preparation method thereof

Abstract

The present invention relates to the technical field of waterproof building materials, and specifically discloses an exposed non-asphalt-based polymer self-adhesive waterproof roll material, which comprises from top to bottom: a fluorocarbon film, a non-asphalt-based self-adhesive layer, a carcass layer, a non-asphalt-based self-adhesive layer, and an isolation film; the non-asphalt-based self-adhesive layer material comprises the following raw materials by mass fraction: 4%-10% of a thermoplastic elastomer, 15%-25% of a rubber powder, and 4%-8% of a modifier, wherein the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified by an organosilicon prepolymer containing two carbon-carbon double bonds. The exposed non-asphalt-based polymer self-adhesive waterproof roll material of the present invention has greatly enhanced mechanical properties such as elongation at break and tensile strength, greatly improved adhesion between the roll material and a substrate, and significantly improved weather resistance of the roll material.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof building materials, and particularly relates to an exposed non-asphalt-based polymer self-adhesive waterproof coiled material and a preparation method thereof. Background Art

[0002] Self-adhesive waterproofing membranes are simple and convenient to construct. They do not require heating or adhesives. They can be attached to the base layer by simply tearing off the isolation film. They are a type of waterproofing membrane that has developed rapidly in recent years. In the past, traditional asphalt-based self-adhesive waterproofing membranes have been widely used because of their good hydrophobicity, ductility and low price. However, the disadvantages of asphalt-based waterproofing membranes are poor atmospheric stability and temperature stability. They are prone to cracking in winter and flowing in summer. They have poor adhesion under low temperature conditions, are prone to aging and brittleness, and have poor weather resistance. They cannot be directly exposed to the air for use. In addition, asphalt contains toxic substances such as naphthalene, anthracene, pyridine, and phenol. They have a strong odor during use, pollute the environment, and are irritating to the skin and mucous membranes. They do not meet the current national green environmental protection requirements. In addition, the price of asphalt raw materials has continued to rise in the past two years, which has greatly restricted the use of asphalt self-adhesive waterproofing membranes. The existing non-asphalt waterproofing membranes are coated with fluorocarbon films on the surface to improve the weather resistance and extend the service life of the products, such as Chinese patents CN214302283U, CN207565084U, and CN 112831287A. The weather resistance and service life of the membranes are improved to a certain extent, but there are problems such as poor miscibility and adhesion between fluorocarbon resin and other materials, resulting in unsatisfactory mechanical properties, poor low temperature resistance, and poor waterproof performance of the waterproof membranes composited with fluorocarbon films. In view of the above technical defects in the prior art, the present invention proposes an exposed non-asphalt-based polymer self-adhesive waterproof membrane. Summary of the invention

[0003] The purpose of the present invention is to provide an exposed non-asphalt-based polymer self-adhesive waterproofing membrane and a preparation method thereof, so as to improve the mechanical properties, adhesion and low temperature resistance of the non-asphalt-based self-adhesive waterproofing membrane.

[0004] To achieve the above-mentioned purpose, the present invention provides an exposed non-asphalt-based polymer self-adhesive waterproof membrane, which includes, from top to bottom: a fluorocarbon film, a non-asphalt-based self-adhesive layer, a carcass layer, a non-asphalt-based self-adhesive layer, and an isolation membrane; the non-asphalt-based self-adhesive layer material includes the following raw materials in mass fraction: 4%-10% thermoplastic elastomer, 15%-25% rubber powder, and 4%-8% modifier, wherein the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified by a silicone prepolymer containing two carbon-carbon double bonds.

[0005] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the preparation method of the thermoplastic elastomer comprises the following steps: heating 2 parts of polyether polyol to 70-75° C., adding 1.5 parts of an organosilicon prepolymer containing two carbon-carbon double bonds under nitrogen protection and stirring evenly, continuing to add 8 parts of isocyanate and 0.01 parts of dibutyltin dilaurate, stirring and reacting for 2-3 hours;

[0006] Then, 4 parts of 1,4-butanediol were added and rapidly stirred for 2 minutes to form a polyurethane prepolymer. After drying and aging, a thermoplastic polyurethane elastomer modified with a silicone prepolymer containing two carbon-carbon double bonds was obtained.

[0007] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the silicone prepolymer containing two carbon-carbon double bonds is a modified organic alkyl silicon prepolymer having unsaturated carbon-carbon double bonds at both ends or a polyether-modified silicone prepolymer having unsaturated carbon-carbon double bonds at both ends.

[0008] The organosilicon-modified thermoplastic polyurethane elastomer of the present invention is characterized in that an organosilicon long chain segment is introduced into the thermoplastic polyurethane elastomer soft segment through a free radical addition reaction of a carbon-carbon double bond, and a hard segment microregion is distributed in the soft segment phase to play a role of a physical crosslinking point, so that the mechanical properties of the coil such as the elongation at break and the tensile strength are greatly enhanced; at the same time, the organosilicon long chain segment with low surface energy migrates to the surface of the material, thereby increasing the water contact angle of the surface and thus improving the water resistance of the material, and the organosilicon long chain segment and the polyurethane form an interpenetrating grid structure, so that the compatibility of each component is increased, the adhesion with the fluorocarbon film is improved, and it is also helpful to improve the water resistance of the material.

[0009] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the plasticizer consists of epoxy soybean oil and epoxy fatty acid methyl ester.

[0010] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the mass ratio of the epoxy soybean oil to the epoxy fatty acid methyl ester is 4.5-6:1.

[0011] The present invention adopts an environmentally friendly plasticizing modifier composed of epoxy soybean oil and epoxy fatty acid methyl ester. The epoxy soybean oil and epoxy fatty acid methyl ester with good low temperature resistance can reduce the smoking of the plasticizer, reduce the glass transition temperature of the product system, and significantly improve the low temperature resistance of the product system. Epoxidized soybean oil can effectively reduce the force between the molecular chains of thermoplastic polyurethane elastomer, make the macromolecular segment more likely to slip, improve the compatibility of thermoplastic polyurethane elastomer, reduce the viscosity of the rubber material, reduce energy consumption, and improve the plasticity, fluidity and adhesion of the self-adhesive rubber material. The spacing between the elastomer molecules is continuously enlarged by the epoxy soybean oil filled in, which is conducive to the better dispersion of the filler aluminate modified heavy calcium carbonate, thereby facilitating the subsequent self-adhesive rubber material calendering, extrusion and molding and other processing technologies, and the long molecular chain of epoxy soybean oil effectively blocks the generation and development of cracks, and improves the elongation at break and tear strength of the coil. And by adding the modifier, the miscibility of the product system is increased, and the adhesion of the coil is improved.

[0012] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the non-asphalt-based self-adhesive layer material also includes the following raw materials in mass fraction: tackifying resin 22%-32%, high temperature modifier 2%-5%, filler 15%-35%, softener 25%-35%.

[0013] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the tackifying resin is rosin resin, terpene resin or coumarone resin, the high-temperature modifier is polyethylene wax, the filler is heavy calcium carbonate modified by an aluminate coupling agent, and the softening oil is cycloalkane oil or aromatic oil.

[0014] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the preparation method of the non-asphalt-based self-adhesive layer material includes the following steps: adding the modifier, tackifying resin, and rubber powder into a stirring tank and heating it to 130-150°C, adding a high-temperature modifier and a thermoplastic elastomer, fully swelling for 0.5h, continuing to heat to 160°C, keeping warm for 1.5h, adding a softener and stirring for 0.5h, adding a filler after grinding with a colloid mill, and stirring evenly to prepare the non-asphalt-based self-adhesive layer material.

[0015] Preferably, in the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproof membrane, the carcass layer is a polyester carcass, and the isolation film is a PE film.

[0016] The present invention also provides a method for preparing the above-mentioned exposed non-asphalt-based polymer self-adhesive waterproofing membrane, which is characterized by comprising the following steps:

[0017] (1) Roller forming: Add the non-asphalt-based self-adhesive layer material into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and the isolation film on the surfaces of the two rollers respectively, place the carcass layer in the middle of the rollers, and extrude the material to obtain the coil;

[0018] (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled between 20-30°C to allow it to be fully cooled and shaped;

[0019] (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

[0020] Compared with the existing technology, the present invention has the following beneficial effects:

[0021] 1. The exposed non-asphalt-based polymer self-adhesive waterproof membrane of the present invention is added with a silicone prepolymer-modified thermoplastic polyurethane elastomer, so that the mechanical properties such as elongation at break and tensile strength of the membrane are greatly enhanced, the adhesion with the fluorocarbon membrane is improved, and the water resistance of the membrane is improved.

[0022] 2. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane of the present invention adopts an environmentally friendly modifier composed of epoxy soybean oil and epoxy fatty acid methyl ester, which can further improve the adhesion between the non-asphalt-based self-adhesive layer and the fluorocarbon film composite, and solve the shortcomings of the unsatisfactory mechanical properties of the fluorocarbon film composite waterproofing membrane due to the poor miscibility and adhesion between fluorocarbon resin and other materials. It can also improve the mechanical properties such as adhesion between the membrane and the substrate, elongation at break and tear strength, improve the low temperature resistance of the membrane, and extend the service life of the membrane.

[0023] 3. The exposed non-asphalt-based polymer self-adhesive waterproof membrane of the present invention adopts raw materials such as thermoplastic polyurethane elastomer and epoxy soybean oil, which are green, environmentally friendly and renewable; the preparation process is simple and the construction is convenient during use. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0025] Example 1

[0026] An exposed non-asphalt-based polymer self-adhesive waterproofing membrane, from top to bottom, includes: fluorocarbon film, non-asphalt-based self-adhesive layer, carcass layer, non-asphalt-based self-adhesive layer, and isolation membrane; the non-asphalt-based self-adhesive layer material is composed of the following raw materials by mass fraction: 8% thermoplastic elastomer, 15% nitrile rubber powder, 5% modifier, 22% rosin resin, 5% polyethylene wax, 20% heavy calcium carbonate modified by aluminate coupling agent, and 25% aromatic oil. The thermoplastic elastomer is a thermoplastic polyurethane elastomer modified by a carbon-carbon double bond silicone prepolymer, and the modifier is composed of epoxy soybean oil and epoxy fatty acid methyl ester in a mass ratio of 5:1. The rubber powder is

[0027] The preparation method of a thermoplastic polyurethane elastomer modified by a carbon-carbon double bond organic silicon prepolymer comprises the following steps: heating 2 parts of polytetrahydrofuran diol to 70° C., adding 1.5 parts of a modified organic alkyl silicon prepolymer with unsaturated carbon-carbon double bonds at both ends under nitrogen protection and stirring evenly, and then adding 8 parts of isocyanate and 0.01 parts of dibutyltin dilaurate, stirring and reacting for 2 hours;

[0028] Then, 4 parts of 1,4-butanediol were added and rapidly stirred for 2 minutes to form a polyurethane prepolymer, which was poured into a mold and dried and aged to obtain a thermoplastic polyurethane elastomer modified with a silicone prepolymer containing two carbon-carbon double bonds.

[0029] Preparation of non-asphalt-based self-adhesive layer materials: add modifier, rosin resin and nitrile rubber powder into a stirring tank and heat to 150°C, add polyethylene wax and thermoplastic polyurethane elastomer modified by carbon-carbon double bond silicone prepolymer, fully swell for 0.5h, continue to heat to 160°C, keep warm for 1.5h, add aromatic oil and stir for 0.5h, add heavy calcium carbonate modified by aluminate coupling agent after grinding with a colloid mill, stir evenly to prepare a non-asphalt-based self-adhesive layer.

[0030] The preparation method of the exposed non-asphalt-based polymer self-adhesive waterproof membrane of this embodiment comprises the following steps:

[0031] (1) Roller forming: Add the non-asphalt-based self-adhesive layer material into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and PE isolation film on the surfaces of the two rollers respectively, place the polyester tire in the middle of the rollers, and extrude the material to obtain the coil;

[0032] (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled at 25°C to allow it to be fully cooled and shaped;

[0033] (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

[0034] Example 2

[0035] The invention discloses an exposed non-asphalt-based polymer self-adhesive waterproofing membrane, which comprises, from top to bottom, a fluorocarbon film, a non-asphalt-based self-adhesive layer, a carcass layer, a non-asphalt-based self-adhesive layer and an isolation film; the non-asphalt-based self-adhesive layer material is composed of the following raw materials in mass fraction: 5% thermoplastic elastomer, 18% nitrile rubber powder, 6% modifier, 22% rosin resin, 3% polyethylene wax, 21% heavy calcium carbonate modified by an aluminate coupling agent, and 25% aromatic oil; the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified by a silicone prepolymer with a carbon-carbon double bond, and the modifier is composed of epoxidized soybean oil and epoxidized fatty acid methyl ester in a mass ratio of 5.5:1.

[0036] The preparation method of a thermoplastic polyurethane elastomer modified by a silicone prepolymer with a carbon-carbon double bond comprises the following steps: heating 2 parts of polytetrahydrofuran diol to 70° C., adding 1.5 parts of a polyether-modified silicone prepolymer containing unsaturated carbon-carbon double bonds at both ends under nitrogen protection and stirring evenly, and then adding 8 parts of isocyanate and 0.01 parts of dibutyltin dilaurate, stirring and reacting for 2 hours;

[0037] Then, 4 parts of 1,4-butanediol were added and rapidly stirred for 2 minutes to form a polyurethane prepolymer, which was poured into a mold and dried and aged to obtain a thermoplastic polyurethane elastomer modified with a silicone prepolymer containing two carbon-carbon double bonds.

[0038] Preparation of non-asphalt-based self-adhesive layer: add modifier, rosin resin and rubber powder into a stirring tank and heat to 140°C, add polyethylene wax and thermoplastic polyurethane elastomer modified by carbon-carbon double bond silicone prepolymer, fully swell for 0.5h, continue to heat to 160°C, keep warm for 1.5h, add aromatic oil and stir for 0.5h, add heavy calcium carbonate modified by aluminate coupling agent after grinding with a colloid mill, stir evenly to prepare a non-asphalt-based self-adhesive layer.

[0039] The preparation method of the exposed non-asphalt-based polymer self-adhesive waterproof membrane comprises the following steps:

[0040] (1) Roller forming: Add the non-asphalt-based self-adhesive layer material into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and PE isolation film on the surfaces of the two rollers respectively, place the polyester tire in the middle of the rollers, and extrude the material to obtain the coil;

[0041] (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled at 25°C to allow it to be fully cooled and shaped;

[0042] (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

[0043] Example 3

[0044] An exposed non-asphalt-based polymer self-adhesive waterproofing membrane comprises, from top to bottom: a fluorocarbon film, a non-asphalt-based self-adhesive layer, a carcass layer, a non-asphalt-based self-adhesive layer, and an isolation film; the non-asphalt-based self-adhesive layer material is composed of the following raw materials in mass fraction: 7% thermoplastic elastomer, 18% nitrile rubber powder, 4% modifier, 28% rosin resin, 3% polyethylene wax, 15% heavy calcium carbonate modified with an aluminate coupling agent, and 25% aromatic oil; the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified with a carbon-carbon double bond silicone prepolymer, and the modifier is composed of epoxidized soybean oil and epoxy fatty acid methyl ester in a mass ratio of 4.5:1.

[0045] The preparation method of the thermoplastic polyurethane elastomer modified by the organosilicon prepolymer with carbon-carbon double bonds is the same as that in Example 2.

[0046] Preparation of non-asphalt-based self-adhesive layer material: Add epoxy soybean oil, methyl ricinoleate, modifier, rosin resin and rubber powder into a stirring tank and heat to 150°C, add polyethylene wax and thermoplastic polyurethane elastomer modified by carbon-carbon double bond silicone prepolymer, fully swell for 0.5h, continue to heat to 160°C, keep warm for 1.5h, add aromatic oil and stir for 0.5h, add heavy calcium carbonate modified by aluminate coupling agent after grinding with a colloid mill, stir evenly to prepare the non-asphalt-based self-adhesive layer material.

[0047] Preparation of exposed non-asphalt-based polymer self-adhesive waterproof membrane:

[0048] (1) Roller forming: Add the non-asphalt-based self-adhesive layer material prepared in the above steps into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and the PE isolation film on the surfaces of the two rollers respectively, place the carcass layer in the middle of the rollers, and extrude the material to obtain a coil;

[0049] (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled at 25°C to allow it to be fully cooled and shaped;

[0050] (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

[0051] Example 4

[0052] An exposed non-asphalt-based polymer self-adhesive waterproofing membrane comprises, from top to bottom: a fluorocarbon film, a non-asphalt-based self-adhesive layer, a carcass layer, a non-asphalt-based self-adhesive layer, and an isolation membrane; the non-asphalt-based self-adhesive layer material is composed of the following raw materials in mass fraction: 4% thermoplastic elastomer, 15% nitrile rubber powder, 7% modifier, 25% rosin resin, 2% polyethylene wax, 17% heavy calcium carbonate modified with an aluminate coupling agent, and 30% aromatic oil; the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified with a silicone prepolymer containing two carbon-carbon double bonds, and the modifier is composed of epoxidized soybean oil and epoxy fatty acid methyl ester in a mass ratio of 6:1.

[0053] The preparation method of the thermoplastic polyurethane elastomer modified by the organosilicon prepolymer with carbon-carbon double bonds is the same as that in Example 1.

[0054] Preparation of non-asphalt-based self-adhesive layer material: add modifier, rosin resin and rubber powder into a stirring tank and heat to 140°C, add polyethylene wax and thermoplastic polyurethane elastomer modified by carbon-carbon double bond silicone prepolymer, fully swell for 0.5h, continue to heat to 160°C, keep warm for 1.5h, add aromatic oil and stir for 0.5h, add heavy calcium carbonate modified by aluminate coupling agent after grinding with a colloid mill, stir evenly to prepare the non-asphalt-based self-adhesive layer material.

[0055] The preparation method of the exposed non-asphalt-based polymer self-adhesive waterproof membrane comprises the following steps:

[0056] (1) Roller forming: Add the non-asphalt-based self-adhesive layer material into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and PE isolation film on the surfaces of the two rollers respectively, place the polyester tire in the middle of the rollers, and extrude the material to obtain the coil;

[0057] (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled between 25°C to allow it to be fully cooled and shaped;

[0058] (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

[0059] Comparative Example 1

[0060] The difference between this comparative example and Example 3 is that a thermoplastic polyurethane elastomer is used to replace the thermoplastic polyurethane elastomer modified by the organosilicon prepolymer with carbon-carbon double bonds, and the rest is the same as Example 3.

[0061] The preparation method of thermoplastic polyurethane elastomer comprises the following steps: heating 2 parts of polytetrahydrofuran diol to 70° C., adding 8 parts of isocyanate and 0.01 parts of catalyst under nitrogen protection, stirring and reacting for 2 hours;

[0062] Then, 4 parts of 1,4-butanediol were added and rapidly stirred for 2 minutes to form a polyurethane prepolymer, which was poured into a mold and dried and aged to obtain a thermoplastic polyurethane elastomer.

[0063] Comparative Example 2

[0064] This comparative example is different from Example 3 in that the modifier is epoxidized soybean oil, and the rest is the same as Example 3.

[0065] Comparative Example 3

[0066] This comparative example is different from Example 3 in that the modifier is epoxy fatty acid methyl ester, and the rest is the same as Example 3.

[0067] The coils prepared in Examples 1 to 4 and Comparative Examples 1 to 3 were subjected to performance tests. The specific test method was as follows: the tests were conducted in accordance with GB / T23457-2017 and GB / T35467-2017. The test results are shown in Table 1.

[0068] It can be seen from Table 1 that, compared with the comparative example, the exposed non-asphalt-based polymer self-adhesive waterproof membrane prepared in the embodiment of the present invention has excellent mechanical properties such as tensile strength and elongation at break, better weather resistance and good bonding performance.

[0069] Table 1 Performance data of the prepared coils

[0070]

[0071] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. An exposed non-asphalt-based polymer self-adhesive waterproofing membrane, characterized in that: From top to bottom, it includes: fluorocarbon film, non-asphalt-based self-adhesive layer, carcass layer, non-asphalt-based self-adhesive layer, and isolation film; the non-asphalt-based self-adhesive layer material includes the following raw materials in mass fraction: thermoplastic elastomer 4%-10%, rubber powder 15%-25%, and modifier 4%-8%, the thermoplastic elastomer is a thermoplastic polyurethane elastomer modified by an organic silicon prepolymer containing two carbon-carbon double bonds, and the organic silicon prepolymer containing two carbon-carbon double bonds is a modified organic alkyl silicon prepolymer with unsaturated carbon-carbon double bonds at both ends or a polyether-modified organic silicon prepolymer with unsaturated carbon-carbon double bonds at both ends; the modifier is composed of epoxidized soybean oil and epoxy fatty acid methyl ester, and the mass ratio of the epoxidized soybean oil to the epoxy fatty acid methyl ester is 4.5-6:

1.

2. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane according to claim 1 is characterized in that: The preparation method of the thermoplastic elastomer comprises the following steps: heating 2 parts of polyether polyol to 70-75° C., adding 1.5 parts of organosilicon prepolymer containing two carbon-carbon double bonds under nitrogen protection and stirring evenly, adding 8 parts of isocyanate and 0.01 parts of dibutyltin dilaurate, stirring and reacting for 2-3 hours; Then, 4 parts of 1,4-butanediol were added and rapidly stirred for 2 minutes to form a polyurethane prepolymer. After drying and aging, a thermoplastic polyurethane elastomer modified with a silicone prepolymer containing two carbon-carbon double bonds was obtained.

3. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane according to claim 1 is characterized in that: The non-asphalt-based self-adhesive layer material also includes the following raw materials in mass fractions: tackifying resin 22%-32%, high temperature modifier 2%-5%, filler 15%-21%, and softener 25%-35%.

4. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane according to claim 3 is characterized in that: The tackifying resin is rosin resin, terpene resin or coumarone resin, the high temperature modifier is polyethylene wax, the filler is heavy calcium carbonate modified by aluminate coupling agent, and the softener is cycloalkane oil or aromatic oil.

5. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane according to claim 3 is characterized in that: The preparation method of the non-asphalt-based self-adhesive layer material comprises the following steps: adding a modifier, a tackifying resin and a rubber powder into a stirring tank and heating the mixture to 130-150° C., adding a high-temperature modifier and a thermoplastic elastomer, and fully swelling the mixture for 0.5 h, further heating the mixture to 160° C. and keeping the temperature for 1.5 h, adding a softener and stirring the mixture for 0.5 h, grinding the mixture with a colloid mill, adding a filler and stirring the mixture evenly to obtain the non-asphalt-based self-adhesive layer material.

6. The exposed non-asphalt-based polymer self-adhesive waterproofing membrane according to claim 1, characterized in that: The carcass layer is a polyester carcass, and the isolation film is a PE film.

7. A method for preparing an exposed non-asphalt-based polymer self-adhesive waterproofing membrane as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: (1) Roller forming: Add the non-asphalt-based self-adhesive layer material into the glue coating reaction tank, adjust the distance between the rollers, place the fluorocarbon film and the isolation film on the surfaces of the two rollers respectively, place the carcass layer in the middle of the rollers, and extrude the material to obtain the coil; (2) Cooling and shaping: The coil obtained in step (1) is sprayed with water and then put into a water tank. The temperature of the cooling water tank is controlled between 20-30°C to allow it to be fully cooled and shaped; (3) After the coil is cooled and formed, it is dried, flattened, rolled and packaged.

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