Polymer waterproofing membrane with hook-and-loop fastener and method of making same

Abstract

The application relates to the technical field of waterproof coiled materials, and discloses a high-molecular waterproof coiled material with a sticky tape and a preparation method thereof, wherein the high-molecular waterproof coiled material with the sticky tape is sequentially provided with a sticky tape, a high-molecular sheet layer, a barrier layer, an upper glue-sticking waterproof layer, a film-based high-molecular layer, a lower glue-sticking waterproof layer and an anti-sticking layer; the upper glue-sticking waterproof layer and the lower glue-sticking waterproof layer are both modified self-sticking asphalt glues; the raw materials of the modified self-sticking asphalt glues include the following components: asphalt, a softening agent, a styrene-butadiene-styrene block copolymer, styrene-butadiene rubber, butyl rubber, tackifying resin, desulfurized rubber powder, fillers and a compatibilizer; the raw materials of the fillers include carbon black, silicon dioxide, a silane coupling agent and calcium 5-methylphenol-2-sulfonate; the sticky tape is a magic tape, and the magic tape includes a magic tape hook surface layer and a magic tape hair surface layer; and the above technical scheme solves the problem of low peeling strength of the high-molecular waterproof coiled material in the prior art.

Description

Technical Field

[0001] This invention relates to the field of waterproof membranes, specifically to a polymer waterproof membrane with hook and loop fasteners and its preparation method. Background Technology

[0002] my country has a vast territory and a massive infrastructure project, making waterproofing an indispensable and crucial aspect. In mountainous regions, the construction of highways and railways is often constrained by topography, resulting in numerous tunnel projects. The effectiveness of tunnel waterproofing directly impacts the safety and durability of the project. In tunnel construction, waterproofing membranes need to be laid after the initial support is installed. These membranes require fixing using nails and hot-melt gaskets, a slow process that demands high-quality hot-melt bonding.

[0003] High-polymer waterproof membranes with hook and loop fasteners offer good adaptability to deformation. The hook and loop fasteners, with their Velcro structure, allow for quick and easy installation by using nails to fasten the hook and loop layer to the initial tunnel support. The thin, lightweight hook and loop layer facilitates easy application. After installation, the main body of the high-polymer waterproof membrane is directly bonded to the hook and loop layer via the hook and loop loop surface, achieving rapid adhesion and significantly reducing the time required for hot-melt gasket installation. However, these high-polymer waterproof membranes suffer from poor peel strength, which can lead to waterproofing failure and compromise structural safety. Therefore, developing a high-polymer waterproof membrane with high peel strength is of great significance. Summary of the Invention

[0004] This invention proposes a polymer waterproof membrane with hook and loop fastener and its preparation method, which solves the problem of low peel strength of polymer waterproof membranes in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] This invention proposes a polymer waterproof membrane with hook and loop fasteners, comprising, from top to bottom, hook and loop fasteners, a polymer sheet layer, a barrier layer, an upper adhesive waterproof layer, a membrane-based polymer layer, a lower adhesive waterproof layer, and an anti-stick layer; the hook and loop fasteners are Velcro, comprising a hook and loop side layer and a hook and loop side layer; one side of the polymer waterproof membrane has an overlap opening formed by separating the polymer sheet layer and the upper adhesive waterproof layer; the lower surface of the overlap opening has a release membrane to separate the polymer sheet layer from the upper adhesive waterproof layer; the upper surface of the other side of the overlap opening of the polymer sheet layer does not have hook and loop fasteners; both the upper and lower adhesive waterproof layers are modified self-adhesive asphalt adhesives.

[0007] The modified self-adhesive asphalt compound comprises the following components by weight: 35-50 parts asphalt, 10-20 parts softener, 3-15 parts styrene-butadiene-styrene block copolymer, 1-5 parts styrene-butadiene rubber, 1-5 parts butyl rubber, 1-5 parts tackifying resin, 5-15 parts desulfurized rubber powder, 15-25 parts filler, and 1-5 parts compatibilizer. The filler comprises carbon black, silica, silane coupling agent, and calcium 5-methylphenol-2-sulfonate.

[0008] As a further technical solution, the size of the isolation membrane is 10~20cm.

[0009] As a further technical solution, the width of the area in the polymer sheet layer without a hook-and-loop or textured surface layer is 10-20 cm.

[0010] As a further technical solution, the material of the isolation layer is a silicone-coated oil-separating film.

[0011] As a further technical solution, the mass ratio of carbon black, silicon dioxide, silane coupling agent, and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4~0.6.

[0012] As a further technical solution, the softener includes one or more of aromatic oils, naphthenic oils, and engine oils.

[0013] As a further technical solution, the tackifying resin includes one or more of hydrogenated rosinol, styrene-based resin, alkylphenol resin, and terpene phenol resin.

[0014] As a further technical solution, the desulfurized rubber powder includes one or more of waste tire rubber powder, waste styrene-butadiene rubber desulfurized rubber powder, and waste butyl rubber desulfurized rubber powder.

[0015] As a further technical solution, the compatibilizer includes one or both of maleic anhydride-grafted polyethylene and maleic anhydride-grafted polypropylene.

[0016] As a further technical solution, the styrene-butadiene rubber includes a first styrene-butadiene rubber and a second styrene-butadiene rubber, wherein the glass transition temperature of the first styrene-butadiene rubber is lower than that of the second styrene-butadiene rubber.

[0017] As a further technical solution, the glass transition temperature of the first styrene-butadiene rubber is -15℃, the glass transition temperature of the second styrene-butadiene rubber is 7℃, and the mass ratio of the first styrene-butadiene rubber to the second styrene-butadiene rubber is 4:2~4.

[0018] As a further technical solution, both the hook layer and the nap layer are made of synthetic fibers, which are composed of nylon fibers and polyester fibers.

[0019] As a further technical solution, the raw materials of the polymer sheet layer include the following components by weight: 40-50 parts of EPDM rubber, 20-30 parts of random copolymer of polypropylene, 5-10 parts of low-density polyethylene, 0.5-1.5 parts of antioxidant, and 1-2 parts of plasticizer.

[0020] As a further technical solution, the antioxidant includes one or more of antioxidant 1010, antioxidant 1076, and antioxidant 168.

[0021] As a further technical solution, the plasticizer includes one or two of epoxidized soybean oil and dioctyl phthalate.

[0022] As a further technical solution, the membrane-based polymer layer is one of polyethylene film and polyester film.

[0023] As a further technical solution, the isolation layer is one of polyethylene coated silicone film, polyethylene terephthalate coated silicone film, and polypropylene coated silicone film.

[0024] As a further technical solution, the thickness of the barrier layer is 50~150μm.

[0025] As a further technical solution, the preparation method of the hook and loop fastener layer includes the following steps: polyester fibers are woven into a fabric with a vertical loop structure using a double-knitting bed knitting machine, heat-set at 150-180℃ for 30 seconds, and trimmed to obtain a hook and loop fastener layer with a fiber height of 0.2mm-1.5mm; the knitting parameters are 20-30 warp and weft yarns per centimeter, and 100-120 hooks / cm for the hook and loop fastener layer. 2 .

[0026] As a further technical solution, the preparation method of the hook and loop fastener surface layer includes the following steps: using a double knitting bed knitting machine to knit polyester fibers to obtain a fabric with a looped surface structure, heat setting at 150~180℃ for 30s, trimming, to obtain a hook and loop fastener surface layer with a looped surface fiber height of 0.1mm~2mm; the knitting parameters are 20~30 warp and weft yarns per centimeter.

[0027] This invention also proposes a method for preparing a polymer waterproof membrane with hook and loop fasteners, comprising the following steps:

[0028] S1. After the raw materials of the modified self-adhesive asphalt adhesive are mixed evenly at 150~175℃, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively.

[0029] S2. After laminating the material in the following order from top to bottom—hook and loop fastener, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained.

[0030] S3. After coating the lower surface of the barrier layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer is obtained, and a film-based polymer layer is coated on the lower surface of the adhesive waterproof layer.

[0031] S4. After coating the lower surface of the membrane-based polymer layer with a lower adhesive waterproof layer material, a lower adhesive waterproof layer is obtained, and an anti-adhesive layer is applied to the lower surface of the lower adhesive waterproof layer to obtain a polymer waterproof membrane with hook and loop fasteners.

[0032] One side of the polymer waterproof membrane is provided with an overlap opening, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening is provided with a release film to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer is not provided with hook and loop fasteners, thus obtaining a polymer waterproof membrane with hook and loop fasteners.

[0033] The working principle and beneficial effects of this invention are as follows:

[0034] This invention prepares a polymer waterproof membrane with hook and loop fasteners. The fillers added to the upper and lower adhesive waterproof layers of the polymer waterproof membrane include carbon black, silica, a silane coupling agent, and calcium 5-methylphenol-2-sulfonate. These fillers improve the peel strength of the polymer waterproof membrane, and the hook and loop fastener structure enhances ease of construction. In this invention, calcium 5-methylphenol-2-sulfonate generates hydrogen bonds with carbon black and silica through hydroxyl and calcium sulfonate groups, ensuring uniform distribution of carbon black and silica in the asphalt binder. The silane coupling agent, based on this uniform dispersion, strengthens the interaction between carbon black, silica, and the asphalt binder, thereby improving the peel strength of the waterproof membrane. Attached Figure Description

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0037] In the diagram: 1-Hook and loop fastener, 2-Polymer sheet layer, 3-Barrier layer, 4-Upper adhesive waterproof layer, 5-Membrane-based polymer layer, 6-Lower adhesive waterproof layer, 7-Anti-adhesive layer, 8-Release film Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] In the following embodiments and comparative examples:

[0040] 70# asphalt, manufacturer: Maoming Petrochemical;

[0041] Styrene-butadiene-styrene block copolymer, model: 796E, manufacturer: Baling Petrochemical;

[0042] First Styrene-Butadiene Rubber, Model: AL-3001A, Manufacturer: A&L Japan;

[0043] Second styrene-butadiene rubber, model: SN-307R, manufacturer: A&L Japan;

[0044] Butyl rubber, model: 301, manufacturer: Shanghai Yuanxiang Industrial Co., Ltd.;

[0045] Waste tire rubber powder, model: DT-XJ71, manufacturer: Lingshou County Detong Mineral Products Processing Plant;

[0046] Maleic anhydride-grafted polyethylene, model: 900E, manufacturer: Nanjing Feiteng New Material Technology Co., Ltd.

[0047] Ethylene propylene diene monomer (EPDM) rubber, manufacturer: Dow Chemical, USA;

[0048] Polypropylene random copolymer, model 8681, manufacturer: Li Changrong Chemical (Fuju);

[0049] Low-density polyethylene, model: 4203, manufacturer: Dow Chemical, USA;

[0050] The membrane base polymer layer is a polyethylene membrane with a thickness of 50 μm;

[0051] The isolation layer is a polyethylene terephthalate-coated silicone film with a thickness of 0.06 mm.

[0052] Polyester fiber: Model: BPFS-001, Manufacturer: Hangzhou Hesu Times Trading Co., Ltd.

[0053] Example 1

[0054] A polymer waterproof membrane with hook and loop fasteners comprises, from top to bottom, hook and loop fasteners, a polymer sheet layer, a barrier layer, an upper adhesive waterproof layer, a membrane-based polymer layer, a lower adhesive waterproof layer, and an anti-stick layer. The hook and loop fasteners are Velcro, comprising a hook-and-loop hook side and a loop side. One side of the polymer waterproof membrane has an overlap opening formed by separating the polymer sheet layer and the upper adhesive waterproof layer. A release membrane is provided on the lower surface of the overlap opening to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer does not have hook and loop fasteners. Both the upper and lower adhesive waterproof layers are modified self-adhesive bitumen adhesives.

[0055] The raw materials of the modified self-adhesive asphalt compound include the following components by weight: 40 parts of 70# asphalt, 12 parts of cyclopentane, 4 parts of styrene-butadiene-styrene block copolymer, 2 parts of styrene-butadiene rubber, 4 parts of butyl rubber, 2 parts of hydrogenated rosinol, 10 parts of waste tire rubber powder, 15 parts of filler, and 1 part of maleic anhydride grafted polyethylene. The hook and loop fastener is a hook and loop fastener, which includes a hook and loop hook layer and a hook and loop hook layer.

[0056] The preparation method of the filler includes the following steps: silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate are added to ethanol and dispersed evenly, then carbon black and silica are added and mixed for 1.5 hours, and dried to obtain the filler; wherein the mass-volume ratio of silane coupling agent KH-550, calcium 5-methylphenol-2-sulfonate and ethanol is 1 g:7 mL; the mass ratio of carbon black, silica, silane coupling agent and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4;

[0057] The raw materials for the polymer sheet layer include the following components by weight: 42 parts EPDM rubber, 26 parts random copolymer of polypropylene, 6 parts low-density polyethylene, 0.5 parts antioxidant 1010, and 1 part epoxidized soybean oil.

[0058] The preparation method of the polymer sheet layer includes the following steps: the raw material of the above polymer sheet layer is melt-extruded through a twin-screw extruder to obtain the polymer sheet layer;

[0059] The preparation method of the hook and loop fastener layer includes the following steps: polyester fibers are woven into a fabric with a vertical loop structure using a double-knitting bed knitting machine; the fabric is heat-set at 150℃ for 30 seconds; and trimmed to obtain a hook and loop fastener layer with a fiber height of 0.8 mm. The knitting parameters are: 25 warp and weft yarns per centimeter; and 110 hooks per centimeter. 2 ;

[0060] The method for preparing the hook and loop fastener fleece layer includes the following steps: using a double knitting bed knitting machine to knit polyester fibers to obtain a fabric with a fleece structure, heat-setting at 150℃ for 30s, trimming, and obtaining a hook and loop fastener fleece layer with a fleece fiber height of 1mm; the knitting parameters are 25 warp and weft yarns per centimeter.

[0061] A method for preparing a polymer waterproof membrane with hook and loop fasteners includes the following steps:

[0062] S1. After the raw materials of the modified self-adhesive asphalt compound are mixed evenly at 160°C, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively.

[0063] S2. After laminating the layers in the following order from top to bottom—hook and loop fastener, hook and loop rough surface, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained. The polymer sheet layer has a thickness of 1.2 mm, and the barrier layer has a thickness of 80 μm.

[0064] S3. After coating the lower surface of the isolation layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer with a thickness of 0.7mm is obtained, and a film-based polymer layer with a thickness of 50μm is covered on the lower surface of the adhesive waterproof layer; wherein, a 10cm isolation layer is set at the same end of the polymer sheet layer and the adhesive waterproof layer; no hook layer or rough layer is set on the upper 10cm of the other side of the polymer sheet layer;

[0065] S4. After coating the lower surface of the membrane-based polymer layer with the lower adhesive waterproof layer material, a lower adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a 0.1 mm thick anti-adhesive layer (polyethylene film) is covered on the lower surface of the lower adhesive waterproof layer.

[0066] One side of the polymer waterproof membrane has an overlap opening, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. A release liner is provided on the lower surface of the overlap opening to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer does not have a hook and loop fastener, resulting in a polymer waterproof membrane with a hook and loop fastener. A structural schematic diagram is shown below. Figure 1 As shown.

[0067] Example 2

[0068] A polymer waterproof membrane with hook and loop fasteners, comprising, from top to bottom, hook and loop fasteners, a polymer sheet layer, a barrier layer, an upper adhesive waterproof layer, a membrane-based polymer layer, a lower adhesive waterproof layer, and an anti-adhesive layer, wherein the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive bitumen adhesive.

[0069] The raw materials of the modified self-adhesive asphalt compound include the following components by weight: 45 parts of 70# asphalt, 11 parts of cyclopentane, 7 parts of styrene-butadiene-styrene block copolymer, 3 parts of styrene-butadiene rubber, 5 parts of butyl rubber, 3 parts of hydrogenated rosinol, 9 parts of waste tire rubber powder, 16 parts of filler, and 2 parts of maleic anhydride grafted polyethylene. The hook and loop fastener is a hook and loop fastener, which includes a hook and loop hook layer and a hook and loop hook textured layer.

[0070] The preparation method of the filler includes the following steps: silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate are added to ethanol and dispersed evenly, then carbon black and silica are added and mixed for 1.5 hours, and dried to obtain the filler; wherein the mass-volume ratio of silane coupling agent KH-550, calcium 5-methylphenol-2-sulfonate and ethanol is 1 g:7 mL; the mass ratio of carbon black, silica, silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4;

[0071] The raw materials for the polymer sheet layer include the following components by weight: 45 parts EPDM rubber, 25 parts random copolymer of polypropylene, 7 parts low-density polyethylene, 0.7 parts antioxidant 1010, and 0.9 parts epoxidized soybean oil;

[0072] The preparation method of the polymer sheet layer includes the following steps: the raw material of the above polymer sheet layer is melt-extruded through a twin-screw extruder to obtain the polymer sheet layer;

[0073] The preparation method of the hook and loop fastener layer includes the following steps: polyester fibers are knitted into a fabric with a vertical loop structure using a double-knitting bed knitting machine; the top of the vertical loops is cut; the fabric is heat-set at 150℃ for 30 seconds; and trimmed to obtain a hook and loop fastener layer with a hook and loop fastener layer height of 0.7mm. The knitting parameters are: 25 warp and weft yarns per centimeter; and 110 hooks / cm for the hook and loop fastener layer. 2 ;

[0074] The method for preparing the hook and loop fastener fleece layer includes the following steps: using a double knitting bed knitting machine to knit polyester fibers to obtain a fabric with a fleece structure, heat-setting at 150℃ for 30s, trimming, and obtaining a hook and loop fastener fleece layer with a fleece fiber height of 0.9mm; the knitting parameters are 25 warp and weft yarns per centimeter;

[0075] A method for preparing a polymer waterproof membrane with hook and loop fasteners includes the following steps:

[0076] S1. After the raw materials of the modified self-adhesive asphalt compound are mixed evenly at 160°C, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively.

[0077] S2. After laminating the layers in the following order from top to bottom—hook and loop fastener, hook and loop rough surface, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained. The polymer sheet layer has a thickness of 1.2 mm, and the barrier layer has a thickness of 80 μm.

[0078] S3. After coating the lower surface of the isolation layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer with a thickness of 0.7mm is applied, and a film-based polymer layer with a thickness of 50μm is applied to the lower surface of the adhesive waterproof layer; wherein, a 12cm isolation layer is set at one end of the polymer sheet layer and the adhesive waterproof layer; no hook layer or rough layer is set on the upper 12cm of the other end of the polymer sheet layer;

[0079] S4. After coating the lower surface of the membrane-based polymer layer with the lower adhesive waterproof layer material, a lower adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a 0.1 mm thick anti-adhesive layer (polyethylene film) is covered on the lower surface of the lower adhesive waterproof layer.

[0080] The polymer waterproof membrane has an overlap opening on one side, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening is provided with a release film to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer is not provided with hook and loop fasteners, thus obtaining a polymer waterproof membrane with hook and loop fasteners.

[0081] Example 3

[0082] A polymer waterproof membrane with hook and loop fasteners, comprising, from top to bottom, hook and loop fasteners, a polymer sheet layer, a barrier layer, an upper adhesive waterproof layer, a membrane-based polymer layer, a lower adhesive waterproof layer, and an anti-adhesive layer, wherein the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive bitumen adhesive.

[0083] The raw materials of the modified self-adhesive asphalt compound include the following components by weight: 47 parts of 70# asphalt, 10 parts of cyclopentane, 9 parts of styrene-butadiene-styrene block copolymer, 2 parts of styrene-butadiene rubber, 3 parts of butyl rubber, 4 parts of hydrogenated rosinol, 6 parts of waste tire rubber powder, 20 parts of filler, and 3 parts of maleic anhydride grafted polyethylene. The hook and loop fastener is a hook and loop fastener, which includes a hook and loop hook layer and a hook and loop hook layer.

[0084] The preparation method of the filler includes the following steps: silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate are added to ethanol and dispersed evenly, then carbon black and silica are added and mixed for 1.5 hours, and dried to obtain the filler; wherein the mass-volume ratio of silane coupling agent KH-550, calcium 5-methylphenol-2-sulfonate and ethanol is 1 g:7 mL; the mass ratio of carbon black, silica, silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4;

[0085] The raw materials for the polymer sheet layer include the following components by weight: 48 parts EPDM rubber, 22 parts random copolymer of polypropylene, 9 parts low-density polyethylene, 0.6 parts antioxidant 1010, and 0.9 parts epoxidized soybean oil;

[0086] The preparation method of the polymer sheet layer includes the following steps: the above polymer sheet layer material is melt-extruded through a twin-screw extruder to obtain the polymer sheet layer;

[0087] The preparation method of the hook and loop fastener layer includes the following steps: polyester fibers are woven into a fabric with a vertical loop structure using a double-knitting bed knitting machine; the fabric is then heat-set at 150℃ for 30 seconds and trimmed to obtain a hook and loop fastener layer with a fiber height of 0.8mm; the knitting parameters are 25 warp and weft yarns per centimeter, and the hook and loop fastener layer has 110 hooks / cm. 2 ;

[0088] The method for preparing the hook and loop fastener fleece layer includes the following steps: using a double knitting bed knitting machine to knit polyester fibers to obtain a fabric with a fleece structure, heat-setting at 150℃ for 30s, trimming, and obtaining a hook and loop fastener fleece layer with a fleece fiber height of 0.8mm; the knitting parameters are 25 warp and weft yarns per centimeter;

[0089] A method for preparing a polymer waterproof membrane with hook and loop fasteners includes the following steps:

[0090] S1. After the raw materials of the modified self-adhesive asphalt adhesive are mixed evenly at 160°C, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively.

[0091] S2. After laminating the layers in the following order from top to bottom—hook and loop fastener, hook and loop rough surface, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained. The polymer sheet layer has a thickness of 1.2 mm, and the barrier layer has a thickness of 80 μm.

[0092] S3. After coating the lower surface of the isolation layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a film-based polymer layer with a thickness of 50 μm is covered on the lower surface of the adhesive waterproof layer; wherein, a 15 cm isolation layer is provided at one end of the polymer sheet layer and the adhesive waterproof layer; no hook layer or rough layer is provided on the upper 15 cm of the other end of the polymer sheet layer;

[0093] S4. After coating the lower surface of the membrane-based polymer layer with the lower adhesive waterproof layer material, a lower adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a 0.1 mm thick anti-adhesive layer (polyethylene film) is covered on the lower surface of the lower adhesive waterproof layer.

[0094] One side of the polymer waterproof membrane has an overlap opening, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening is provided with a release film to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer is not provided with hook and loop fasteners, thus obtaining a polymer waterproof membrane with hook and loop fasteners.

[0095] Example 4

[0096] A polymer waterproof membrane with hook and loop fasteners, comprising, from top to bottom, hook and loop fasteners, a polymer sheet layer, a barrier layer, an upper adhesive waterproof layer, a membrane-based polymer layer, a lower adhesive waterproof layer, and an anti-adhesive layer, wherein the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive bitumen adhesive.

[0097] The raw materials of the modified self-adhesive asphalt compound include the following components by weight: 52 parts of 70# asphalt, 15 parts of cyclopentane, 10 parts of styrene-butadiene-styrene block copolymer, 4 parts of styrene-butadiene rubber, 4 parts of butyl rubber, 1 part of hydrogenated rosinol, 13 parts of waste tire rubber powder, 22 parts of filler, and 1 part of maleic anhydride grafted polyethylene. The hook and loop fastener is a hook and loop fastener, which includes a hook and loop hook layer and a hook and loop hook textured layer.

[0098] The preparation method of the filler includes the following steps: silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate are added to ethanol and dispersed evenly, then carbon black and silica are added and mixed for 1.5 hours, and dried to obtain the filler; wherein the mass-volume ratio of silane coupling agent KH-550, calcium 5-methylphenol-2-sulfonate and ethanol is 1 g:7 mL; the mass ratio of carbon black, silica, silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4;

[0099] The raw materials for the polymer sheet layer include the following components by weight: 45 parts EPDM rubber, 27 parts random copolymer of polypropylene, 8 parts low-density polyethylene, 0.6 parts antioxidant 1010, and 0.9 parts epoxidized soybean oil;

[0100] The preparation method of the polymer sheet layer includes the following steps: the above polymer sheet layer material is melt-extruded through a twin-screw extruder to obtain the polymer sheet layer;

[0101] The preparation method of the hook and loop fastener layer includes the following steps: polyester fibers are knitted into a fabric with a vertical loop structure using a double-knitting bed knitting machine; the top of the vertical loops is cut; and the fabric is heat-set at 150℃ for 30 seconds to obtain a hook and loop fastener layer with a height of 1mm. The knitting parameters are: 25 warp and weft yarns per centimeter, and 110 hooks / cm for the hook and loop fastener layer. 2 ;

[0102] The method for preparing the hook and loop fastener fleece layer includes the following steps: using a double knitting bed knitting machine to knit polyester fibers to obtain a fabric with a fleece structure, heat-setting at 150℃ for 30s, trimming, and obtaining a hook and loop fastener fleece layer with a fleece height of 1mm; the knitting parameters are 25 warp and weft yarns per centimeter.

[0103] A method for preparing a polymer waterproof membrane with hook and loop fasteners includes the following steps:

[0104] S1. After the raw materials of the modified self-adhesive asphalt adhesive are mixed evenly at 160°C, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively.

[0105] S2. After laminating the following layers from top to bottom—hook and loop fastener, hook and loop rough surface, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained. The polymer sheet layer has a thickness of 1.2 mm, and the barrier layer has a thickness of 80 μm.

[0106] S3. After coating the lower surface of the isolation layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a film-based polymer layer with a thickness of 50 μm is covered on the lower surface of the adhesive waterproof layer; wherein, a 20 cm isolation layer is provided at one end of the polymer sheet layer and the adhesive waterproof layer; no hook layer or rough layer is provided on the upper 20 cm of the other end of the polymer sheet layer;

[0107] S4. After coating the lower surface of the membrane-based polymer layer with the lower adhesive waterproof layer material, a lower adhesive waterproof layer with a thickness of 0.7 mm is obtained, and a 0.1 mm thick anti-adhesive layer (polyethylene film) is covered on the lower surface of the lower adhesive waterproof layer.

[0108] The polymer waterproof membrane has an overlap opening on one side, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening is provided with a release film to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer is not provided with hook and loop fasteners, thus obtaining a polymer waterproof membrane with hook and loop fasteners.

[0109] Example 5

[0110] The only difference between this embodiment and Example 4 is that the mass ratio of carbon black, silicon dioxide, silane coupling agent KH-550, and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.5.

[0111] Example 6

[0112] The only difference between this embodiment and Example 4 is that the mass ratio of carbon black, silicon dioxide, silane coupling agent KH-550, and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.6.

[0113] Example 7

[0114] The only difference between this implementation and Example 4 is that the first styrene-butadiene rubber is replaced with an equal amount of the second styrene-butadiene rubber.

[0115] Example 8

[0116] The only difference between this implementation and Example 4 is that the first styrene-butadiene rubber is replaced with equal amounts of the first styrene-butadiene rubber and the second styrene-butadiene rubber in a mass ratio of 2:1.

[0117] Example 9

[0118] The only difference between this implementation and Example 4 is that the first styrene-butadiene rubber is replaced with equal amounts of the first styrene-butadiene rubber and the second styrene-butadiene rubber in a mass ratio of 4:3.

[0119] Example 10

[0120] The only difference between this implementation and Example 4 is that the first styrene-butadiene rubber is replaced with equal amounts of the first styrene-butadiene rubber and the second styrene-butadiene rubber in a mass ratio of 1:1.

[0121] Comparative Example 1

[0122] The only difference between this comparative example and Example 4 is that 5-methylphenol-2-sulfonate calcium is replaced with an equal amount of silane coupling agent KH-550.

[0123] Comparative Example 2

[0124] The only difference between this comparative example and Example 4 is that the silane coupling agent KH-550 is replaced with an equal amount of calcium 5-methylphenol-2-sulfonate.

[0125] Comparative Example 3

[0126] The only difference between this comparative example and Example 4 is that the filler is carbon black and silicon dioxide in a mass ratio of 1:1.

[0127] Experimental Example 1

[0128] 1. The peel strength between membranes and the peel strength between membrane and post-poured concrete were tested according to the method of GB / T 23457-2017 "Pre-laid Waterproof Membrane". The test results are the average value of 5 samples. The test results are shown in Table 1 below.

[0129] 2. The peel strength between the hook and loop layers of the hook and loop fasteners was tested according to the method in GB / T 23315-2009 "Hook and Loop Bags". The test results are the average of the four samples. The test results are shown in Table 2 below.

[0130] Table 1. Performance test results of waterproof membranes in Examples 4-10 and Examples 1-3

[0131]

[0132] Compared with Comparative Examples 1-3, Examples 4-6 showed higher peel strength between rolls and between rolls and poured concrete. This indicates that by adding silane coupling agent KH-550 and calcium 5-methylphenol-2-sulfonate to the filler of the adhesive waterproofing layer, the present invention can improve the peel strength between rolls and between rolls and poured concrete.

[0133] Compared with Examples 8-10, Examples 4 and 7 show higher peel strength between rolls and between rolls and poured concrete. This indicates that by adding styrene-butadiene rubber composed of a first styrene-butadiene rubber and a second styrene-butadiene rubber to the adhesive waterproofing layer, the present invention can improve the peel strength between rolls and between rolls and poured concrete.

[0134] Table 2. Results of peel strength test between hook and loop layers in Examples 1-4

[0135]

[0136] As shown in Table 2, the peel strength between the hook and loop layers of the hook and loop in Example 4, as well as the peel strength after 1000 and 3000 engagements, are higher than those in Examples 1-3.

[0137] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polymer waterproof membrane with hook and loop fasteners, characterized in that, From top to bottom, the layers are: hook and loop fastener, polymer sheet layer, barrier layer, upper adhesive waterproof layer, membrane-based polymer layer, lower adhesive waterproof layer, and anti-stick layer. The hook and loop fastener is a Velcro strap, which includes a hook and loop hook side layer and a loop hook side layer. One side of the polymer waterproof membrane has an overlap opening formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening has a release membrane to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer does not have a hook and loop fastener. Both the upper and lower adhesive waterproof layers are modified self-adhesive bitumen adhesive. The modified self-adhesive asphalt compound comprises the following components by weight: 35-50 parts asphalt, 10-20 parts softener, 3-15 parts styrene-butadiene-styrene block copolymer, 1-5 parts styrene-butadiene rubber, 1-5 parts butyl rubber, 1-5 parts tackifying resin, 5-15 parts desulfurized rubber powder, 15-25 parts filler, and 1-5 parts compatibilizer. The filler comprises carbon black, silica, silane coupling agent, and calcium 5-methylphenol-2-sulfonate.

2. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The mass ratio of carbon black, silicon dioxide, silane coupling agent, and calcium 5-methylphenol-2-sulfonate is 8:8:0.1:0.4~0.

6.

3. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The softener includes one or more of aromatic oils, naphthenic oils, and engine oils; The tackifying resin includes one or more of hydrogenated rosinol, styrene-based resins, alkylphenol resins, and terpene phenol resins; The desulfurized rubber powder includes one or more of the following: waste tire rubber powder, waste styrene-butadiene rubber desulfurized rubber powder, and waste butyl rubber desulfurized rubber powder; The compatibilizer includes one or both of maleic anhydride-grafted polyethylene and maleic anhydride-grafted polypropylene.

4. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The styrene-butadiene rubber includes a first styrene-butadiene rubber and a second styrene-butadiene rubber, wherein the glass transition temperature of the first styrene-butadiene rubber is lower than that of the second styrene-butadiene rubber; the glass transition temperature of the first styrene-butadiene rubber is -15℃, the glass transition temperature of the second styrene-butadiene rubber is 7℃, and the mass ratio of the first styrene-butadiene rubber to the second styrene-butadiene rubber is 4:2~4.

5. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, Both the hook layer and the nap layer are made of synthetic fibers, which consist of nylon fibers and polyester fibers.

6. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The polymer sheet layer is a thermoplastic polyolefin sheet, and the raw materials of the thermoplastic polyolefin sheet include the following components by weight: 40-50 parts of EPDM rubber, 20-30 parts of random copolymer of polypropylene, 5-10 parts of low-density polyethylene, 0.5-1.5 parts of antioxidant, and 1-2 parts of plasticizer.

7. A polymer waterproof membrane with hook and loop fastener as described in claim 6, characterized in that, The antioxidant includes one or more of antioxidant 1010, antioxidant 1076, and antioxidant 168; The plasticizer includes one or both of epoxidized soybean oil and dioctyl phthalate.

8. The polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The membrane-based polymer layer is one of polyethylene film or polyester film.

9. A polymer waterproof membrane with hook and loop fastener as described in claim 1, characterized in that, The separator is one of polyethylene coated silicone film, polyethylene terephthalate coated silicone film, and polypropylene coated silicone film.

10. A method for preparing a polymer waterproof membrane with hook and loop fasteners, used to prepare the polymer waterproof membrane with hook and loop fasteners as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. After the raw materials of the modified self-adhesive asphalt adhesive are mixed evenly at 150~175℃, the upper adhesive waterproof layer material and the lower adhesive waterproof layer material are obtained respectively. S2. After laminating the material in the following order from top to bottom—hook and loop fastener, polymer sheet layer, and barrier layer—a semi-finished polymer waterproof membrane is obtained. S3. After coating the lower surface of the barrier layer in the polymer waterproof membrane semi-finished product with an adhesive waterproof layer material, an adhesive waterproof layer is obtained, and a film-based polymer layer is coated on the lower surface of the adhesive waterproof layer. S4. After coating the lower surface of the membrane-based polymer layer with a lower adhesive waterproof layer material, a lower adhesive waterproof layer is obtained, and an anti-adhesive layer is applied to the lower surface of the lower adhesive waterproof layer to obtain a polymer waterproof membrane with hook and loop fasteners. One side of the polymer waterproof membrane is provided with an overlap opening, which is formed by separating the polymer sheet layer and the upper adhesive waterproof layer. The lower surface of the overlap opening is provided with a release film to separate the polymer sheet layer from the upper adhesive waterproof layer. The upper surface of the other side of the overlap opening of the polymer sheet layer is not provided with hook and loop fasteners, thus obtaining a polymer waterproof membrane with hook and loop fasteners.

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