Multilayer polymer waterproof roll and preparation method thereof

Abstract

The present invention relates to the technical field of building waterproof materials and discloses a multilayer polymer waterproof membrane and its preparation method. The multilayer polymer waterproof membrane comprises, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and a barrier film layer. The polymer adhesive layer comprises the following components by weight: 60 parts polyolefin, 15-20 parts butyl rubber, 8-12 parts graphene, 8-16 parts first additive, and 1-3 parts antioxidant. The first additive comprises rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1-9:1. This technical solution solves the problem of poor adhesion of waterproof membranes in related technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of building waterproof materials, and in particular to a multi-layer polymer waterproof coiled material and a preparation method thereof. Background Art

[0002] With the rapid development of the construction industry, people have put forward higher requirements for the waterproof performance of buildings. Traditional waterproof materials often use some tackifying resins or rubber materials alone for adhesion performance. The adhesion performance is greatly affected by the stability of the materials themselves and the external environmental factors. Long-term immersion in water or long-term exposure to light and heat will cause debonding, making it difficult to meet the high standards of waterproof performance required by modern buildings. Moreover, at present, waterproof membranes still have the problems of cumbersome construction process and low construction efficiency, especially in complex structural parts and harsh environmental conditions. The construction complexity problem is particularly prominent. Therefore, there is an urgent need for a waterproof membrane with good adhesion and convenient construction to ensure the durability and safety of buildings. Summary of the Invention

[0003] The present invention provides a multi-layer polymer waterproof roll and a preparation method thereof, which solves the problem of poor adhesion of waterproof rolls in related technologies.

[0004] The technical solutions of the present invention are as follows:

[0005] The present invention provides a multi-layer polymer waterproof roll, which comprises, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and a separator layer. The polymer adhesive layer comprises the following components in parts by weight:

[0006] 60 parts of polyolefin, 15-20 parts of butyl rubber, 8-12 parts of graphene, 8-16 parts of the first auxiliary agent, and 1-3 parts of antioxidant;

[0007] The first auxiliary agent comprises rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1 to 9:1.

[0008] As a further technical solution, the weight ratio of the rosin resin to the trivalent hydroxychloroacetic acid resin is 2-5:1.

[0009] When the weight ratio of rosin resin to trihydroxychloroacetic acid resin is 2~5:1, the bonding performance of the waterproof membrane can be further improved.

[0010] As a further technical solution, the polyolefin is one or both of polypropylene and polyethylene;

[0011] The antioxidant includes one or more of antioxidant 1010 , antioxidant 168 , and antioxidant 245 .

[0012] As a further technical solution, the polymer sheet is one of polyethylene sheet, polypropylene sheet, polyethylene terephthalate sheet, polyvinyl chloride sheet, ethylene-vinyl acetate copolymer sheet, polybutylene sheet, and polyester sheet.

[0013] As a further technical solution, when the polymer sheet is a polyethylene sheet, the polyethylene sheet comprises the following components in parts by weight:

[0014] 60 parts of polyethylene, 8-14 parts of polyvinyl chloride, 1-2 parts of ultraviolet absorber, 10-16 parts of mica powder, and 1-3 parts of plasticizer.

[0015] As a further technical solution, the particle size of the mica powder is 10-80 μm.

[0016] As a further technical solution, the mica powder is a composite mica powder, and the raw materials of the composite mica powder include mica powder and a second auxiliary agent;

[0017] The weight ratio of the mica powder to the second auxiliary agent is 30:1-3;

[0018] The second auxiliary agent includes rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1:4.

[0019] In the present invention, mica powder is combined with rosin resin and ternary hydroxychloroacetic acid resin to obtain composite mica powder. The addition of rosin resin and ternary hydroxychloroacetic acid resin can ensure the adhesion between the polymer sheet and the first fabric layer and the second fabric layer, while improving the affinity between the mica powder and the organic matrix material, so that the mica powder can be evenly dispersed in the polymer sheet, thereby improving the mechanical strength of the waterproof roll.

[0020] When the weight ratio of mica powder to the second additive is 30:1-3, and the weight ratio of rosin resin to trihydroxychloroacetic acid resin in the second additive is 1:4, the mechanical strength of the waterproof membrane can be further improved.

[0021] As a further technical solution, the ultraviolet absorber includes one or more of ultraviolet absorber Tinuvin326, ultraviolet absorber Tinuvin328, and ultraviolet absorber Tinuvin622;

[0022] The plasticizer includes one or more of dioctyl phthalate, dibutyl phthalate, and dibutyl sebacate.

[0023] As a further technical solution, the first cloth layer is one of polypropylene filament cloth and polyester filament cloth; the second cloth layer is one of polypropylene filament cloth, polyester filament cloth and metal mesh cloth layer; the isolation membrane is PE or PET film.

[0024] As a further technical solution, when the second cloth layer is a metal mesh cloth layer, the material of the metal mesh cloth layer is one of aluminum, aluminum alloy, copper, copper alloy, and stainless steel.

[0025] The present invention also provides a method for preparing a multi-layer polymer waterproof membrane, comprising the following steps:

[0026] S1, mixing the components of the polymer sheet in parts by weight, melting, and extruding to obtain a polymer sheet;

[0027] S2. Covering the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0028] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0029] S4. Covering the lower surface of the main layer of the waterproof roll with an isolation film layer to obtain the multi-layer polymer waterproof roll.

[0030] The working principle and beneficial effects of the present invention are:

[0031] 1. In the present invention, the waterproof roll comprises a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and an isolation film layer. The layers work together to form a whole, so that the waterproof roll has a significant waterproof effect and is suitable for various complex environments.

[0032] 2. The polymer adhesive layer uses polyolefin as its matrix material and can bond with the second fabric layer under the interaction of butyl rubber, graphene, the first additive, and the antioxidant. The first additive includes rosin resin and trihydroxychloroacetic acid resin. The combined use of rosin resin and trihydroxychloroacetic acid resin can improve the compatibility between the polymer adhesive layer and the surface of the second fabric layer, allowing them to be tightly bonded, thereby significantly improving the bonding performance of the waterproof membrane.

[0033] 3. In the present invention, the structural design of each layer of the multi-layer polymer waterproof membrane is reasonable, the construction steps are simple, and it is easy to operate, which can reduce the demand for construction workers' skills. At the same time, due to the simplified construction process and stable material properties, it can significantly improve construction efficiency and shorten construction period. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] In the following embodiments and comparative examples, the model of polypropylene is RH40; the model of butyl rubber is HSL13; the model of rosin resin is D-125; the model of trivalent hydroxychloroacetic acid resin is XYD-1; the model of polyethylene is DFDA-7042; the model of polyvinyl chloride is PM6510; the particle size of mica powder is 50 μm; the material of the metal mesh cloth layer is aluminum alloy, specifically 7075 aluminum alloy; the isolation film is PET film, and the model of PET is GN119; the thickness of the first cloth layer is 0.35 mm; the thickness of the second cloth layer is 0.35 mm; the thickness of the polymer sheet layer is 0.4 mm; and the thickness of the polymer adhesive layer is 0.4 mm.

[0036] Example 1

[0037] A multi-layer polymer waterproofing membrane comprises, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and an isolation film layer. The polymer adhesive layer comprises the following components in parts by weight:

[0038] 60 parts of polypropylene, 15 parts of butyl rubber, 8 parts of graphene, 8 parts of the first auxiliary agent, 1 part of antioxidant 1010;

[0039] The first auxiliary agent includes 4 parts of rosin resin and 4 parts of trihydroxychloroacetic acid resin;

[0040] The polymer sheet is a polyethylene sheet, and the polyethylene sheet includes the following components in parts by weight:

[0041] 60 parts of polyethylene, 8 parts of polyvinyl chloride, 1 part of ultraviolet absorber Tinuvin 326, 10 parts of mica powder, 1 part of dioctyl phthalate;

[0042] The first and second fabric layers are both polypropylene filament fabrics;

[0043] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0044] S1, mixing the components of the polymer sheet in parts by weight, melting, and extruding to obtain a polymer sheet;

[0045] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0046] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0047] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0048] Example 2

[0049] A multi-layer polymer waterproofing membrane comprises, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and an isolation film layer. The polymer adhesive layer comprises the following components in parts by weight:

[0050] 60 parts of polypropylene, 18 parts of butyl rubber, 10 parts of graphene, 12 parts of the first auxiliary agent, and 2 parts of antioxidant 1010;

[0051] The first auxiliary agent includes 6 parts of rosin resin and 6 parts of trihydroxychloroacetic acid resin;

[0052] The polymer sheet is a polyethylene sheet, and the polyethylene sheet includes the following components in parts by weight:

[0053] 60 parts of polyethylene, 12 parts of polyvinyl chloride, 1.5 parts of ultraviolet absorber Tinuvin 326, 12 parts of mica powder, 2 parts of dioctyl phthalate;

[0054] The first and second fabric layers are both polypropylene filament fabrics;

[0055] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0056] S1, mixing the components of the polymer sheet in parts by weight, melting, and extruding to obtain a polymer sheet;

[0057] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0058] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0059] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0060] Example 3

[0061] A multi-layer polymer waterproofing membrane comprises, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and an isolation film layer. The polymer adhesive layer comprises the following components in parts by weight:

[0062] 60 parts of polypropylene, 20 parts of butyl rubber, 12 parts of graphene, 16 parts of the first auxiliary agent, and 3 parts of antioxidant 1010;

[0063] The first auxiliary agent includes 14.4 parts of rosin resin and 1.6 parts of trihydroxychloroacetic acid resin;

[0064] The polymer sheet is a polyethylene sheet, and the polyethylene sheet includes the following components in parts by weight:

[0065] 60 parts of polyethylene, 14 parts of polyvinyl chloride, 2 parts of ultraviolet absorber Tinuvin 326, 15 parts of mica powder, 3 parts of dioctyl phthalate;

[0066] The first cloth layer is polypropylene filament cloth, and the second cloth layer is metal mesh cloth layer;

[0067] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0068] S1, mixing the components of the polymer sheet in parts by weight, melting, and extruding to obtain a polymer sheet;

[0069] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0070] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0071] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0072] Example 4

[0073] The only difference between this embodiment and embodiment 2 is that, in this embodiment, the first auxiliary agent includes 11 parts of rosin resin and 1 part of trihydroxychloroacetic acid resin.

[0074] Example 5

[0075] The only difference between this embodiment and embodiment 2 is that, in this embodiment, the first auxiliary agent includes 8 parts of rosin resin and 4 parts of trihydroxychloroacetic acid resin.

[0076] Example 6

[0077] The only difference between this embodiment and embodiment 2 is that, in this embodiment, the first auxiliary agent includes 10 parts of rosin resin and 2 parts of trihydroxychloroacetic acid resin.

[0078] Example 7

[0079] The only difference between this embodiment and embodiment 2 is that, in this embodiment, the mica powder in the polyethylene sheet is composite mica powder, and the raw materials of the composite mica powder include mica powder and a second additive; the second additive includes rosin resin;

[0080] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0081] S1, after 0.5 part of rosin resin is melted, 30 parts of mica powder are added, dispersed evenly, after cooling, ground to obtain composite mica powder, 15 parts of composite mica powder and the components of the remaining parts by weight in the polymer sheet are mixed, melted, and extruded to obtain a polymer sheet;

[0082] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0083] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0084] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0085] Example 8

[0086] The difference between this embodiment and embodiment 7 is that, in this embodiment, the second auxiliary agent includes trivalent hydroxychloroacetic acid resin;

[0087] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0088] S1, after 0.5 parts of ternary hydroxychloroacetic acid resin is melted, 30 parts of mica powder is added, and the mixture is evenly dispersed. After cooling, the mixture is ground to obtain composite mica powder. 15 parts of the composite mica powder and the components of the remaining parts by weight in the polymer sheet are mixed, melted, and extruded to obtain a polymer sheet;

[0089] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0090] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0091] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0092] Example 9

[0093] The only difference between this embodiment and embodiment 7 is that, in this embodiment, the second auxiliary agent includes rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1:4;

[0094] The preparation method of the multi-layer polymer waterproof membrane comprises the following steps:

[0095] S1, after 0.1 parts of rosin resin and 0.4 parts of trivalent hydroxychloroacetic resin are melted, 30 parts of mica powder are added, and the mixture is evenly dispersed. After cooling, the mixture is ground to obtain composite mica powder. 15 parts of composite mica powder and the components of the remaining parts by weight in the polymer sheet are mixed, melted, and extruded to obtain a polymer sheet;

[0096] S2. Laying the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer;

[0097] S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite structure sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer;

[0098] S4. Covering the lower surface of the main layer of the waterproof membrane with an isolation film layer to obtain a multi-layer polymer waterproof membrane.

[0099] Example 10

[0100] The only difference between this embodiment and embodiment 9 is that, in this embodiment, the second auxiliary agent includes 0.8 parts of rosin resin and 3.2 parts of trihydroxychloroacetic acid resin.

[0101] Example 11

[0102] The only difference between this embodiment and embodiment 9 is that, in this embodiment, the second auxiliary agent includes 0.2 parts of rosin resin and 0.8 parts of trihydroxychloroacetic acid resin.

[0103] Example 12

[0104] The only difference between this embodiment and embodiment 9 is that, in this embodiment, the second auxiliary agent includes 0.6 parts of rosin resin and 2.4 parts of trihydroxychloroacetic acid resin.

[0105] Comparative Example 1

[0106] The only difference between this comparative example and Example 1 is that, in this comparative example, the first auxiliary agent includes only 8 parts of rosin resin.

[0107] Comparative Example 2

[0108] The only difference between this comparative example and Example 1 is that, in this comparative example, the first auxiliary agent includes only 8 parts of trihydroxychloroacetic acid resin.

[0109] Comparative Example 3

[0110] The only difference between this comparative example and Example 1 is that the first auxiliary agent is not added in this comparative example.

[0111] Experimental Example 1 Waterproof Performance Test

[0112] The multilayer polymer waterproof membranes prepared in Examples 1 to 3 were tested for waterproof performance according to the test method in GB / T 23457-2017 "Pre-laid Waterproof Membrane". The test results are shown in Table 1 below:

[0113] Table 1 Waterproof performance test results of Examples 1 to 3

[0114]

[0115] As can be seen from Table 1, the multi-layer polymer waterproof membranes prepared in Examples 1 to 3 have good waterproof performance and meet the waterproof performance requirements of multi-layer polymer waterproof membranes.

[0116] Experimental Example 2 Adhesion Performance Test

[0117] The multilayer polymer waterproof membranes prepared in Examples 1 to 6 and Comparative Examples 1 to 3 were subjected to peeling strength tests with post-cast concrete according to the test method in GB / T 23457-2017 "Pre-laid Waterproof Membrane". The test results are shown in Table 2 below:

[0118] Table 2 Peeling strength test results of Examples 1 to 6 and Comparative Examples 1 to 3 with post-cast concrete

[0119]

[0120] As can be seen from Table 2, compared with Comparative Examples 1 to 3, the peeling strength of Example 1 with the post-cast concrete is significantly improved, indicating that when the first additive includes rosin resin and trihydroxychloroacetic acid resin, the bonding performance of the waterproof membrane can be significantly improved by using the rosin resin and trihydroxychloroacetic acid resin in combination.

[0121] Compared with Examples 2 and 4, the peeling strength of Examples 5 and 6 with the post-cast concrete is improved, indicating that when the weight ratio of rosin resin to trihydroxychloroacetic acid resin is 2 to 5:1, the bonding performance of the waterproof membrane can be further improved.

[0122] Experimental Example 3 Mechanical Strength Test

[0123] The multilayer polymer waterproof membranes prepared in Examples 6 to 12 were subjected to a tensile strength test according to the test method in GB / T 23457-2017 "Pre-laid Waterproof Membrane". The test results are shown in Table 3 below:

[0124] Table 3 Tensile strength test results of Examples 6 to 12

[0125]

[0126] As can be seen from Table 3, compared with Examples 6 to 8, the tensile strength of Examples 9 to 12 is improved, indicating that when the second additive is rosin resin and trihydroxychloroacetic acid resin, the addition of rosin resin and trihydroxychloroacetic acid resin can improve the affinity between mica powder and organic matrix material, and can make the mica powder evenly dispersed in the polymer sheet, thereby improving the mechanical strength of the waterproof membrane.

[0127] Compared with Examples 9 and 10, the tensile strength of Examples 11 and 12 is improved, indicating that when the weight ratio of mica powder to the second additive is 30:1-3 and the weight ratio of rosin resin and trihydroxychloroacetic acid resin in the second additive is 1:4, the mechanical strength of the waterproof membrane can be further improved.

[0128] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-layer polymer waterproofing membrane, comprising, from top to bottom, a first fabric layer, a polymer sheet layer, a second fabric layer, a polymer adhesive layer, and a separator layer, characterized in that: The polymer adhesive layer comprises the following components in parts by weight: 60 parts of polyolefin, 15-20 parts of butyl rubber, 8-12 parts of graphene, 8-16 parts of the first auxiliary agent, and 1-3 parts of antioxidant; The first auxiliary agent comprises rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1 to 9:1; The polymer sheet is a polyethylene sheet, and the polyethylene sheet comprises the following components in parts by weight: 60 parts of polyethylene, 8-14 parts of polyvinyl chloride, 1-2 parts of ultraviolet absorber, 10-16 parts of composite mica powder, 1-3 parts of plasticizer; The raw materials of the composite mica powder include mica powder and a second auxiliary agent; The weight ratio of the mica powder to the second auxiliary agent is 30:1-3; The second auxiliary agent includes rosin resin and trivalent hydroxychloroacetic acid resin in a weight ratio of 1:

4.

2. The multi-layer polymer waterproof membrane according to claim 1, characterized in that: The weight ratio of the rosin resin and the trivalent hydroxychloroacetic acid resin in the first auxiliary agent is 2-5:

1.

3. The multi-layer polymer waterproof membrane according to claim 1, characterized in that: The polyolefin is one or both of polypropylene and polyethylene; The antioxidant includes one or more of antioxidant 1010 , antioxidant 168 , and antioxidant 245 .

4. The multi-layer polymer waterproof membrane according to claim 1, characterized in that: The ultraviolet absorber includes one or more of ultraviolet absorber Tinuvin326, ultraviolet absorber Tinuvin328, and ultraviolet absorber Tinuvin622; The plasticizer includes one or more of dioctyl phthalate, dibutyl phthalate, and dibutyl sebacate.

5. The multi-layer polymer waterproof membrane according to claim 1, characterized in that: The first cloth layer is one of polypropylene filament cloth and polyester filament cloth; the second cloth layer is one of polypropylene filament cloth, polyester filament cloth and metal mesh cloth layer; the isolation film is PE or PET film.

6. The multi-layer polymer waterproof membrane according to claim 5, characterized in that: When the second fabric layer is a metal mesh fabric layer, the material of the metal mesh fabric layer is one of aluminum, aluminum alloy, copper, copper alloy, and stainless steel.

7. The method for preparing a multi-layer polymer waterproof membrane according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, mixing the components of the polymer sheet in parts by weight, melting, and extruding to obtain a polymer sheet; S2. Covering the first fabric layer and the second fabric layer on the upper and lower sides of the polymer sheet respectively, and hot pressing and laminating them to form a three-layer composite structure sheet including, from top to bottom, the first fabric layer, the polymer sheet, and the second fabric layer; S3. Mixing and melting the components of the polymer adhesive layer in parts by weight to obtain a polymer adhesive, extruding the polymer adhesive, and applying the polymer adhesive to the lower surface of the three-layer composite sheet to form a main layer of the waterproof membrane comprising, from top to bottom, a first fabric layer, a polymer sheet, a second fabric layer, and a polymer adhesive layer; S4. Covering the lower surface of the main layer of the waterproof roll with an isolation film layer to obtain the multi-layer polymer waterproof roll.

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