Highly durable, perforation-resistant polymeric waterproof coil material and method for preparing same

Abstract

The present invention relates to the technical field of waterproof coil material, and provides a highly durable, puncture-resistant polymeric waterproof coil material and a preparation method thereof. The highly durable, puncture-resistant polymeric waterproof coil material includes a polyethylene film layer, an elastomer-modified bituminous layer, a polyester felt layer, an elastomer-modified bituminous layer, and a polyethylene film layer, which are arranged from top to bottom. The raw materials of the elastomer-modified bituminous layer include a prepreg and a buttering material. The prepreg includes components in weight parts of 70-80 parts of 90# bituminous, 15-20 parts of dihydroxypolydimethylsiloxane, 0.5-1 part of root-resistant agent, and 0.1-0.2 parts of antibacterial agent. The buttering agent contains the following components by weight: 50-70 parts of 90# bitumen, 5-8 parts of 10# bitumen, 20-30 parts of 200# bitumen, 5-10 parts of polyphenylpyrrolidone, 4-8 parts of SBS, 5-6 parts of plasticizer, 40-60 parts of filler, 1-1.5 parts of root-resistant agent, and 0.4-0.7 parts of antibacterial agent. The above-mentioned technical solution can solve the problem of oil penetration of elastomer-modified bitumen root-resistant puncture-resistant waterproof coil material in the prior art.

Description

[Technical Field]

[0001] The present invention relates to the technical field of waterproof coil material, and more particularly to a highly durable, puncture-resistant polymeric waterproof coil material and a method for preparing the same. [Background technology]

[0002] Root-resistant waterproof coil material for planted roofs includes elastomer-modified bitumen waterproof coil material, plastomer-modified bitumen waterproof coil material, modified bitumen polyethylene tire waterproof coil material and other polymer-modified bitumen waterproof coil material, polymer waterproof sheets, PVC waterproof coil material, TPO waterproof coil material, etc. Among these waterproof coil material products, elastomer-modified bitumen waterproof coil material has the highest market share and the most widespread applications.

[0003] Elastomer modified bitumen waterproof coil material is made of polyester fiber mat as padding, elastomer modified bitumen with added chemical root resistant agent as asphalt coating material, and polyethylene film insulating material. It has excellent waterproof performance and can maintain its waterproof effect for a long time. When used on planted roofs, it can withstand plant root punctures without affecting plant growth, and has a wide range of applications in construction sites such as underground and roof.

[0004] JGJ155-2013, "Technical Regulations for Planted Roof Construction," stipulates that planted roof waterproofing layers must meet the requirements for Grade 1 waterproofing. Furthermore, planted roof waterproofing layers must be at least two layers thick. The upper waterproofing layer must be a root-resistant waterproofing material, i.e., the root-resistant waterproofing material must be installed on top of the normal waterproofing layer. However, in practical applications, the transfer of oil from elastomer-modified bitumen root-resistant waterproofing coil material over time can affect its waterproofing quality. Therefore, there is an urgent need to improve the oil penetration performance of elastomer-modified bitumen root-resistant waterproofing coil material. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention provides a highly durable, puncture-resistant polymeric waterproof coil material and a preparation method thereof, which solves the oil leakage problem of elastomer-modified bitumen root-puncture-resistant waterproof coil material in the prior art. [Means for solving the problem]

[0006] The technical solution of the present invention is as follows: A highly durable, perforation-resistant polymer waterproof coil material comprising a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, arranged from top to bottom. The elastomer-modified bitumen layer contains raw materials for prepreg and buttering material. The prepreg contains 70-80 parts by weight of 90# bitumen, 15-20 parts by weight of dihydroxypolydimethylsiloxane, 0.5-1 part by weight of root-resistant agent, and 0.1-0.2 parts by weight of antibacterial agent. The buttering material contains 50-70 parts by weight of 90# bitumen, 5-8 parts by weight of 10# bitumen, 20-30 parts by weight of 200# bitumen, 5-10 parts by weight of polyphenylenylpyrrolidone, 4-8 parts by weight of SBS, 5-6 parts by weight of plasticizer, 40-60 parts by weight of filler, 1-1.5 parts by weight of root-resistant agent, and 0.4-0.7 parts by weight of antibacterial agent.

[0007] As a further technical solution, the mass ratio of 90# bitumen, 10# bitumen and 200# bitumen in the buttering material is 10:1:5.

[0008] In a further technical solution, the filler is one or more of talcum powder, swelling earth, diatomaceous earth, and fly ash.

[0009] In a further technical solution, the plasticizer is an arene oil.

[0010] In a further technical solution, the antibacterial agent is a nanosilver antibacterial agent.

[0011] As another technical solution, the prepreg is prepared by uniformly mixing 90# bitumen and dihydroxypolydimethylsiloxane at 165-170℃, adding root-resistant agent and antibacterial agent, and then uniformly mixing to obtain prepreg.

[0012] As a further technical solution, when mixing the 90# bitumen and dihydroxypolydimethylsiloxane, the stirring speed is 80 to 100 rpm and the stirring time is 10 to 15 minutes.

[0013] As another technical solution, the buttering agent is prepared by uniformly mixing 90# bitumen, 10# bitumen, and 200# bitumen at 130~140℃, adding plasticizer and SBS, and uniformly mixing at 155~175℃, grinding until fully expanded, adding filler, root-resistant agent, and antibacterial agent, and uniformly mixing to obtain the buttering agent.

[0014] The present invention provides Step S1: dip-coating a prepreg for a polyester felt layer at 175 to 185°C; Step S2: Coating the polyester felt layer with a buttering agent dip-coated at 175 to 185°C to form an elastomer-modified bitumen layer on the entire upper and lower surfaces of the polyester felt layer; S3: further covering the upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, with polyethylene film to obtain a polyethylene film layer, which is cooled and shaped to obtain a highly durable, perforation-resistant polymeric waterproof coil material; The present invention further provides a method for preparing a highly durable, perforation-resistant, waterproof polymeric coil material, comprising: [Effects of the Invention]

[0015] The operating principle and beneficial effects of the present invention are as follows.

[0016] 1. In this invention, dihydroxypolydimethylsiloxane is added to the dip coating material of the elastomer-modified bituminous layer, and polyphenylpyrrolidone is added as a buttering agent. These have a synergistic effect, which can prevent the transfer of oil in the elastomer-modified bituminous layer, thereby enhancing the oil penetration resistance of the waterproof coating. The oil penetration performance requirement for the produced waterproof coil material is less than or equal to one sheet, and complies with the requirements of GB / T35468~2017 "Root-resistant waterproof coil material for planted roofs".

[0017] 2. In the present invention, dihydroxypolydimethylsiloxane is added to the dip coating material of the elastomer-modified bitumen layer, and polyphenylpyrrolidone is added to the buttering material, which have a synergistic effect, further significantly improving the aging resistance of the waterproof coil material.

[0018] 3. In the present invention, 10# bitumen and 200# bitumen are added to the buttering material of the elastomer-modified bitumen layer, and some of the arene oil plasticizer is replaced by 10# bitumen and 200# bitumen, which further reduces the migration of oil in the elastomer-modified bitumen layer. At the same time, the specific mass ratio of 10# bitumen and 200# bitumen has synergy with 90# bitumen, improving the aging resistance of the waterproof coil material. Best Mode for Carrying Out the Invention

[0019] The present invention provides a clear and complete description of the technical solutions of the embodiments in combination with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and do not cover all of the embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without paying any creative work are within the scope of protection of the present invention. Example 1

[0020] Example 1 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0021] S0. Preparation of raw materials.

[0022] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nano-silver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nano-silver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0023] The buttering agent contains 50 parts of 90# bitumen, 5 parts of 10# bitumen, 20 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene oil, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The 90# bitumen, 10# bitumen, and 200# bitumen are mixed evenly at 130°C, the 10# arene oil and SBS are added, the mixture is stirred evenly at 155°C, and polished until it expands completely. The talcum powder, root-resistant agent, and nano-silver antibacterial agent are added, and the mixture is stirred evenly to obtain the buttering agent.

[0024] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0025] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0026] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0027] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 2

[0028] Example 2 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0029] S0. Raw material reserve.

[0030] The prepreg contains 80 parts of 90# bitumen, 20 parts of dihydroxypolydimethylsiloxane, 1 part of root-resistant agent, and 0.2 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 170°C, the stirring speed is 100 rpm, and the stirring time is 10 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0031] The buttering agent contains 70 parts of 90# bitumen, 8 parts of 10# bitumen, 30 parts of 200# bitumen, 10 parts of polyzenylpyrrolidone, 8 parts of SBS, 6 parts of 10# arene oil, 60 parts of swelling soil, 1.5 parts of root-resistant agent, and 0.7 parts of nano-silver antibacterial agent. The buttering agent is prepared by uniformly mixing the 90# bitumen, 10# bitumen, and 200# bitumen at 140°C, adding the 10# arene oil and SBS, stirring uniformly at 155°C, and grinding until the mixture is fully expanded. The swelling soil, root-resistant agent, and nano-silver antibacterial agent are then added and stirred uniformly to obtain the buttering agent.

[0032] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0033] S1. At 185℃, the polyester felt layer is dip-coated with prepreg.

[0034] S2. The polyester felt layer is dip coated at 185°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0035] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 3

[0036] Example 3 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0037] S0. Preparation of raw materials.

[0038] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nano-silver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nano-silver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0039] The buttering agent contains 50 parts of 90# bitumen, 5 parts of 10# bitumen, 25 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene oil, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The buttering agent is prepared by uniformly mixing the 90# bitumen, 10# bitumen, and 200# bitumen at 130°C, adding the 10# arene oil and SBS, stirring uniformly at 155°C, and grinding until fully expanded. Then, adding the talcum powder, root-resistant agent, and nano-silver antibacterial agent, and stirring uniformly to obtain the buttering agent.

[0040] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0041] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0042] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0043] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 4

[0044] Example 4 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0045] S0. Preparation of raw materials.

[0046] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0047] The buttering agent contains 50 parts of 90# bitumen, 5 parts of 10# bitumen, 30 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The buttering agent is prepared by uniformly mixing the 90# bitumen, 10# bitumen, and 200# bitumen at 140°C, adding 10# arene oil and SBS, stirring uniformly at 130°C, and grinding until fully expanded. Then, adding the talcum powder, root-resistant agent, and nano-silver antibacterial agent, and stirring uniformly to obtain the buttering agent.

[0048] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0049] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0050] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0051] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 5

[0052] Example 5 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0053] S0. Raw material reserve.

[0054] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0055] The buttering agent contains 50 parts of 90# bitumen, 6 parts of 10# bitumen, 25 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The 90# bitumen, 10# bitumen, and 200# bitumen are mixed evenly at 130-140°C, 10# arene oil and SBS are added, the mixture is stirred evenly at 155-175°C, and polished until it expands completely. Then, the talcum powder, root-resistant agent, and nano-silver antibacterial agent are added, and the mixture is stirred evenly to obtain the buttering agent.

[0056] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0057] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0058] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0059] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 6

[0060] Example 6 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0061] S0. Raw material reserve.

[0062] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0063] The buttering agent contains 50 parts of 90# bitumen, 7 parts of 10# bitumen, 25 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The 90# bitumen, 10# bitumen, and 200# bitumen are mixed evenly at 130-140°C, 10# arene oil and SBS are added, the mixture is stirred evenly at 155-175°C, and polished until it expands completely. Then, the talcum powder, root-resistant agent, and nano-silver antibacterial agent are added, and the mixture is stirred evenly to obtain the buttering agent.

[0064] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0065] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0066] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0067] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 7

[0068] Example 7 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0069] S0. Preparation of raw materials.

[0070] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0071] The buttering agent contains 50 parts of 90# bitumen, 8 parts of 10# bitumen, 25 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The 90# bitumen, 10# bitumen, and 200# bitumen are mixed evenly at 130-140°C, 10# arene oil and SBS are added, the mixture is stirred evenly at 155-175°C, and polished until it expands completely. Then, the talcum powder, root-resistant agent, and nano-silver antibacterial agent are added, and the mixture is stirred evenly to obtain the buttering agent.

[0072] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0073] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0074] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0075] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained. Example 8

[0076] Example 8 A highly durable, perforation-resistant polymeric waterproof coil material includes, from top to bottom, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, a polyethylene film layer, a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, and a preparation method thereof includes the following steps:

[0077] S0. Preparation of raw materials.

[0078] The prepreg contains 70 parts of 90# bitumen, 15 parts of dihydroxypolydimethylsiloxane, 0.5 parts of root-resistant agent, and 0.1 parts of nanosilver antibacterial agent. The 90# bitumen and dihydroxypolydimethylsiloxane are mixed uniformly at 165°C, the stirring speed is 80 rpm, and the stirring time is 15 minutes. The root-resistant agent and nanosilver antibacterial agent are further added and mixed uniformly to obtain the prepreg.

[0079] The buttering agent contains 60 parts of 90# bitumen, 5 parts of 10# bitumen, 25 parts of 200# bitumen, 5 parts of polyzenylpyrrolidone, 4 parts of SBS, 5 parts of 10# arene, 40 parts of talcum powder, 1 part of root-resistant agent, and 0.4 parts of nano-silver antibacterial agent. The 90# bitumen, 10# bitumen, and 200# bitumen are mixed evenly at 130-140°C, 10# arene oil and SBS are added, the mixture is stirred evenly at 155-175°C, and polished until it expands completely. Then, the talcum powder, root-resistant agent, and nano-silver antibacterial agent are added, and the mixture is stirred evenly to obtain the buttering agent.

[0080] The polyester felt layer is obtained by knitting polyester filaments into polyester padding.

[0081] S1. At 175℃, the polyester felt layer is dip-coated with prepreg.

[0082] S2. The polyester felt layer is dip coated at 175°C and then coated by buttering, and an elastomer-modified bitumen layer is formed on the entire upper and lower surfaces of the polyester felt layer.

[0083] S3. The upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, are further coated with polyethylene film to obtain a polyethylene film layer. After cooling and shaping, a highly durable, puncture-resistant polymeric waterproof coil material is obtained.

[0084] Comparison 1 The only difference from Example 1 is that the dihydroxypolydimethylsiloxane in the prepreg is replaced with a dimethyl silicone polymer.

[0085] Comparison 2 The only difference from Example 1 is that dihydroxypolydimethylsiloxane is not added to the prepreg.

[0086] Comparison 3 The only difference from Example 1 is that polyphenylpyrrolidone is not added to the buttering agent.

[0087] The highly durable, perforation-resistant polymeric waterproof coil materials obtained in Examples 1 to 8 and Comparative Examples 1 to 3 were subjected to the following performance tests.

[0088] (1) Oil penetration performance is measured based on the method specified in GB / T18242~2008 "Elastomer-modified bituminous waterproof coil material."

[0089] (2) Artificial climate accelerated aging is measured in accordance with the method specified in GB / T18244-2000 "Test methods for aging of construction waterproofing materials."

[0090] The test results are shown in the table below.

[0091] Table 1: Test results of waterproof coil materials for Examples 1 to 8 and Comparative Examples 1 to 3 JPEG0007737735000001.jpg7298

[0092] From the data in the above table, it can be seen that the oil penetration performance requirements of the waterproof coil material in Examples 1 to 8 are all ≦1 sheet, and the tensile retention rate (horizontal and vertical directions) after accelerated aging by artificial air conditioning is all ≧91%, which complies with the requirements of GB / T35468-2017 "Root-resistant puncture-resistant waterproof coil material for planted roofs."

[0093] In comparison with Examples 3 to 8, Example 1 demonstrates that the aging resistance of the waterproof coil material in Example 3 is better, and that the 10# bitumen and 200# bitumen in a specific mass ratio have a synergistic effect with 90# bitumen, thereby enhancing the aging resistance of the waterproof coil material.

[0094] In Example 1, compared with Comparative Examples 1 to 3, the oil penetration resistance was lower and the tensile retention rate was higher after accelerated aging due to artificial air conditioning. This demonstrates that the addition of dihydroxypolydimethylsiloxane to the dip coating material of the elastomer-modified bitumen layer and polyphenylpyrrolidone to the buttering material in the present invention effectively prevents the transfer of oil in the elastomer-modified bitumen layer, thereby enhancing the oil penetration resistance of the waterproof coating and significantly improving the aging resistance of the waterproof coil material.

[0095] The waterproof coil material of Example 1 was sent to Beijing Institute of Garden Science to test its root puncture resistance.

[0096] The results showed that the plant growth in the test boxes reached 80% of that in the control boxes (in terms of height and trunk diameter) during the entire test period, and no root punctures were observed in any of the test boxes.

[0097] The conclusion of the test is that the root puncture resistance performance of the detected elastomer-modified bitumen root-puncture resistant waterproof coil material (sample number: 2019B013) complies with the provisions of "Root-puncture resistant waterproof coil material for planted roofs" (GB / T35468~2017).

[0098] The waterproof coil material of Example 1 was sent to the National Center for Quality Supervision, Inspection and Testing of Building Materials, Industrial Building Enclosure Materials and Conduit Products. The test items included thickness, mildew resistance, mildew corrosion resistance, seam peel strength, area, mass per unit area, thickness, appearance, soluble matter content, heat resistance, low-temperature flexibility, watertightness, maximum peak tensile strength, maximum peak elongation, mass gain after water immersion, heat aging, oil penetration performance, seam peel strength, thickness of the bituminous coating layer on the underside of the coil material, and artificial air-conditioning accelerated aging. The test results showed that the test items complied with the requirements of GB / T35468-2017 "Root-Puncture-Resistant Waterproof Coil Material for Planted Roofs."

[0099] The above are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention fall within the protection scope of the present invention.

Claims

1. A method for preparing a highly durable, perforation-resistant polymeric waterproof coil material, comprising: A highly durable, perforation-resistant polymeric waterproof coil material comprises a polyethylene film layer, an elastomer-modified bitumen layer, a polyester felt layer, an elastomer-modified bitumen layer, and a polyethylene film layer, which are arranged from top to bottom. The elastomer-modified bitumen layer comprises raw materials for a prepreg and a buttering agent. The prepreg comprises 70-80 parts by weight of 90# bitumen, 15-20 parts by weight of dihydroxypolydimethylsiloxane, 0.5-1 part by weight of a root inhibitor, and 0.1-0.2 parts by weight of an antibacterial agent. The buttering agent comprises 50-70 parts by weight of 90# bitumen, 5-8 parts by weight of 10# bitumen, 20-30 parts by weight of 200# bitumen, 5-10 parts by weight of polyvinylpyrrolidone, 4-8 parts by weight of SBS, 5-6 parts by weight of a plasticizer, 40-60 parts by weight of a filler, 1-1.5 parts by weight of a root inhibitor, and 0.4-0.7 parts by weight of an antibacterial agent. The prepreg is prepared by uniformly mixing 90# bitumen and dihydroxypolydimethylsiloxane at 165-170°C, then adding root inhibitor and antibacterial agent and mixing them uniformly to obtain the prepreg. The mass ratio of 90# bitumen, 10# bitumen, and 200# bitumen in the buttering material is 10:1:5; The preparation method comprises: Step S1: dip-coating a prepreg for a polyester felt layer at 175 to 185°C; Step S2: Coating the polyester felt layer with a buttering agent dip-coated at 175 to 185°C to form an elastomer-modified bitumen layer on the entire upper and lower surfaces of the polyester felt layer; S3: further covering the upper and lower surfaces of the coated polyester felt layer, i.e., the surface of the elastomer-modified bitumen layer, with polyethylene film to obtain a polyethylene film layer, and cooling and shaping the polyethylene film layer to obtain a highly durable, perforation-resistant polymeric waterproof coil material; A preparation method comprising:

2. 10. The method of claim 1, wherein the fillers are one or more of talcum powder, swelling earth, diatomaceous earth, and fly ash.

3. 10. The method of claim 1, wherein the antimicrobial agent is a nanosilver antimicrobial agent.

4. The method of claim 1, wherein the mixing of the 90# bitumen and dihydroxypolydimethylsiloxane is carried out at a stirring speed of 80-100 rpm for 10-15 minutes.

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