Pre-laid waterproofing membrane

Abstract

This invention belongs to the field of waterproof membranes, specifically relating to a pre-laid waterproof membrane. The pre-laid waterproof membrane comprises: a main waterproof sheet layer; a pressure-sensitive adhesive layer covering one surface of the main waterproof sheet layer; a polymer coating layer covering one surface of the pressure-sensitive adhesive layer; and optionally, a release liner layer covering one surface of the polymer coating layer. The polymer coating layer comprises an acrylic emulsion, sheet-like fillers, and an air-entraining agent, with a weight ratio of 5–75:5–70:0.2–1. The pre-laid waterproof membrane provided by this invention exhibits good weather resistance, heat resistance, and acid and alkali resistance, and maintains good adhesion to subsequently poured concrete even after being exposed to direct sunlight for more than two months.

Description

Technical Field

[0001] The present invention belongs to the field of waterproofing coiled materials, and more specifically, relates to a pre-laid waterproofing coiled material. Background Art

[0002] Polymer pre-laid waterproofing membrane is a waterproofing membrane with a multi-layer composite structure, which is mainly composed of a flexible main waterproof sheet, an adhesive layer on the main waterproof sheet layer, an anti-sticking layer, and an isolation film or isolation paper (when necessary) on the surface of the anti-sticking layer. This waterproofing membrane is constructed by pre-laid reverse bonding method and bonded with post-cast concrete, which can effectively prevent water from leaking from the bonding surface between the membrane and the concrete structure. It has good adaptability to a variety of complex and changeable application environments. At the same time, the construction is simple and fast, and the requirements for the base are simple. Only minimal surface treatment is required, no primer or hot air drying of the wet base is required, and there is no volatile substance. When the concrete base reaches the strength that can be walked on, construction can be carried out. During construction, steel bars can be directly tied to the membrane, and there is no need to lay a protective layer, which can shorten the construction period of the waterproofing process in the project. Polymer pre-laid waterproofing membrane is mainly widely used in engineering fields such as basement floors, underground pipe galleries, subway tunnels, highway tunnels, and railway tunnels.

[0003] CN102725139 A discloses a roll material with ground white cement or ground hydrated white cement as an anti-adhesive layer. The clear water soaked in cement sand has strong alkalinity, which reacts with carboxylic acid, anhydride and other groups of the modified resin in the adhesive layer, thereby causing the adhesive layer to separate from the main sheet layer and the overlapping parts of the roll material to come apart; at the same time, these strong alkaline clear waters are likely to cause burns to the body contact parts of the roll material construction workers who have improper protection measures. During the construction process, for the roll material with a sand surface as an anti-adhesive layer, the overlap can only be achieved by shoveling sand and then sticking double-sided tape for the construction of the detailed nodes and short side overlaps of the roll material, or by using splicing tape to splice from the back of the roll material. The construction process is relatively cumbersome, and the spliced ​​seams are prone to form water leakage channels, affecting the stability of the waterproof performance of the roll material.

[0004] CN 102604496 A discloses a quick-drying thin-coat acrylic protective coating as an anti-sticking layer for polymer pre-laid coiled materials, and the dry film thickness of the coating is controlled to be 10 to 20 microns. One or a mixture of polyethylene glycol porogens, hydroxypropyl cellulose porogens, polyvinylpyrrolidone porogens, silicone porogens, etc. is used in the coating to form fine micropores on the coating of the adhesive layer. After pouring the post-cast concrete, the post-cast concrete is interlocked with the adhesive layer through the micropores of the coating to form a bond. This type of coating does not take into account that after the coiled material is constructed on the construction site, the coiled material is exposed for a long time due to various construction periods, so that the adhesive layer of the coiled material is irreversibly damaged by ultraviolet light and heat, which reduces the bonding performance of the coiled material and the post-cast concrete, and affects the waterproof life of the coiled material and the life of the building structure. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems and provide a pre-laid reverse-adhesive waterproofing roll with a polymer coating as an isolation protective layer. The waterproofing roll has good weather resistance, heat resistance, and acid and alkali resistance, so that the roll can still have good adhesion with the post-cast concrete when it is exposed to the sun for more than two months or longer during the summer construction process; at the same time, its good scrub resistance also ensures that the surface of the roll is easily contaminated during the construction process, and washing the surface of the roll before pouring concrete will not affect the performance of the roll.

[0006] The present invention provides a pre-laid waterproofing coiled material, which comprises:

[0007] Main waterproof sheet layer;

[0008] A pressure-sensitive adhesive layer is coated on one surface of the main waterproof sheet layer;

[0009] a polymer coating layer covering one surface of the pressure-sensitive adhesive layer;

[0010] an optional release film layer covering one surface of the polymer coating layer;

[0011] The raw material composition of the polymer coating layer includes acrylic emulsion, lamellar filler and air entraining agent, and the weight ratio of the three is 5-75:5-70:0.2-1.

[0012] The polymer coating layer of the pre-laid waterproof coiled material provided by the present invention adopts flaky fillers. When the flaky fillers are arranged horizontally in the polymer coating layer after film formation, the ability of the coating to block ultraviolet radiation can be improved to protect the pressure-sensitive adhesive layer, thereby improving the weather resistance, heat resistance and acid and alkali resistance of the entire pre-laid waterproof coiled material; the hardness of the surface of the polymer coating layer is increased, the scrub resistance of the polymer coating layer is improved, and it is ensured that the bonding performance will not be affected during the coiled material washing process.

[0013] An air entraining agent is introduced into the polymer coating layer of the pre-laid waterproofing coiled material provided by the present invention, and during the drying process of the polymer coating, bubbles will burst, thereby forming some relatively large micropores or a thin coating with relatively small micropores at the position where the bubbles burst on the surface of the pressure-sensitive adhesive layer. During the construction process of the pre-laid waterproofing coiled material, when concrete is poured onto the polymer coating layer, the concrete penetrates into the pressure-sensitive adhesive layer through the micropores and adheres to the pressure-sensitive adhesive layer, so that the entire pre-laid waterproofing coiled material is adhered to the post-cast concrete, and has better bonding strength.

[0014] As a preferred embodiment, the raw material composition of the polymer coating layer includes by weight:

[0015] 10-50 parts of water, 5-75 parts of acrylic emulsion, 5-70 parts of lamellar filler, 0.2-1 parts of air entraining agent, 0-70 parts of non-lamellar filler, 0-5 parts of pigment, 0-3 parts of color filler wetting agent, 0-3 parts of color filler dispersant, 0-3 parts of defoaming agent, 0-3 parts of film-forming aid, 0-3 parts of thickener, 0-5 parts of substrate wetting agent, 0-5 parts of UV absorber, 0-5 parts of UV stabilizer, and 0-10 parts of other additives.

[0016] As a preferred embodiment, the acrylic emulsion is selected from at least one of pure acrylic emulsion, styrene acrylic emulsion, silicone acrylic emulsion and acetate acrylic emulsion.

[0017] As a preferred embodiment, the lamellar filler is selected from at least one of muscovite, pearl mica, phlogopite, yellow-green brittle mica, powdered mica, tetramethylsilyl mica, sodium mica, flaky talc, bentonite, vermiculite, montmorillonite, multi-iron montmorillonite, hectorite, sauconite, beidellite, kaolin, kaolinite, halloysite, phyllosilicate, synthetic phyllosilicate, volcanite, plate-crystalline silicon dioxide, flaky metal, flaky glass, chlorite, smectite, illite, trioctahedral illite, synthetic hectorite, magadiite, hydrodihydro ...

[0018] The lamellar filler is in the form of lamellar sheets.

[0019] As a preferred embodiment, the air entraining agent is selected from at least one of rosin resin air entraining agents, alkyl and alkyl aromatic sulfonic acid air entraining agents, fatty alcohol sulfonate air entraining agents, saponin air entraining agents, protein salt air entraining agents and petroleum sulfonic acid air entraining agents.

[0020] As a preferred embodiment, the water is selected from at least one of deionized water, purified water, distilled water and low-hardness tap water.

[0021] As a preferred embodiment, the non-lamellar filler is at least one selected from calcium carbonate, kaolin clay, needle-shaped talc, calcined clay, structured clay, titanium dioxide, aluminum trihydrate, silicon dioxide, zinc oxide and barium sulfate.

[0022] As a preferred embodiment, the pigment is titanium dioxide and / or zinc sulfide. The titanium dioxide includes natural, rutile, anatase or natural brookite single crystal, tetragonal, orthorhombic; or high pressure, single crystal baddeleyite, orthorhombic α-PbO 2 type.

[0023] As a preferred embodiment, the substrate wetting agent is selected from at least one of a surfactant-based substrate wetting agent, a low molecular weight siloxane-type surfactant-based substrate wetting agent, and a fluorocarbon-containing surfactant-based substrate wetting agent.

[0024] According to the present invention, the pigment and filler wetting agents, pigment and filler dispersants, defoaming agents, film-forming aids, thickeners, UV absorbers, UV stabilizers and defoaming agents can be selected from the pigment and filler wetting agents, pigment and filler dispersants, defoaming agents, film-forming aids, thickeners, UV absorbers, UV stabilizers and defoaming agents conventionally used by those skilled in the art.

[0025] As a preferred embodiment, the pigment and filler wetting agent is selected from at least one of sodium isopropylnaphthalene sulfonate and sodium butylnaphthalene sulfonate;

[0026] As a preferred embodiment, the pigment dispersant is selected from at least one of polyacrylates, polyphosphates, polycarboxylates, cellulose derivatives, polyethylene glycol fatty acid esters and sodium lauryl sulfate;

[0027] As a preferred embodiment, the defoaming agent is selected from at least one of polydimethylsiloxane, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropanolamine ether and polyoxypropylene polyoxyethylene glycerol ether;

[0028] As a preferred embodiment, the film-forming aid is selected from at least one of dodecyl alcohol ester, benzyl alcohol, ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, propylene glycol phenyl ether hexanediol butyl ether acetate and ethyl 3-ethoxypropionate;

[0029] As a preferred embodiment, the thickener is selected from at least one of an inorganic mineral thickener, a cellulose derivative thickener, an acrylic thickener and a polyurethane thickener;

[0030] As a preferred embodiment, the ultraviolet absorber is selected from at least one of phenyl o-hydroxybenzoate, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorobenzotriazole and monobenzoic acid resorcinol ester;

[0031] As a preferred embodiment, the ultraviolet light stabilizer is selected from at least one of 2,2'-thiobis(4-tert-octylphenoloxy)nickel, tris(1,2,2,6,6-pentamethylpiperidinyl)phosphite, 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and hexamethylphosphoric triamide;

[0032] As a preferred embodiment, the other auxiliary agents include at least one of a mildew preventer, a preservative, a matting agent, a flame retardant, a conductive agent and a leveling agent.

[0033] As a preferred solution, the material of the main waterproof layer is selected from at least one of polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, polyvinyl chloride, vulcanized EPDM rubber and polyurethane.

[0034] As a preferred embodiment, the material of the pressure-sensitive adhesive layer is at least one selected from the group consisting of butyl rubber adhesive, polyisobutylene adhesive, butyl adhesive, acrylic adhesive, vinyl ether adhesive, styrene-isoprene-styrene adhesive, polybutadiene-ethylene-butylene-styrene adhesive, styrene-butadiene-styrene adhesive and styrene-butadiene rubber adhesive. More preferably, it is at least one selected from the group consisting of styrene-isoprene-styrene adhesive, polybutadiene-ethylene-butylene-styrene adhesive and styrene-butadiene-styrene adhesive.

[0035] As a preferred solution, the material of the isolation film layer is selected from at least one of PET silicon-coated isolation film, PE silicon-coated isolation film and PP silicon-coated isolation film.

[0036] As a preferred solution, the thickness of the main waterproof sheet layer is 0.5 to 2 mm, more preferably 0.7 to 1.5 mm.

[0037] As a preferred embodiment, the thickness of the pressure-sensitive adhesive layer is 100 to 500 μm, more preferably 250 to 350 μm.

[0038] As a preferred solution, the thickness of the polymer coating layer is 10 to 100 μm, more preferably 15 to 85 μm, and further preferably 20 to 40 μm. The thickness of the polymer coating layer is more conducive to forming micropores that allow concrete to penetrate.

[0039] As a preferred embodiment, the method for preparing the slurry of the polymer coating layer comprises:

[0040] (1) under stirring, a portion of water is stirred and dispersed uniformly with a lamellar filler, an optional non-lamellar filler, an optional pigment, an optional color filler wetting agent, and an optional color filler dispersant;

[0041] (2) optionally adding a defoaming agent and stirring to disperse uniformly;

[0042] (3) adding acrylic emulsion, the remaining water, air entraining agent, and optionally adding film-forming aid, thickener, substrate wetting agent, UV absorber, UV stabilizer, and other additives to obtain a slurry of the polymer coating layer.

[0043] In the above preparation method, "optionally" means that the action may or may not be performed; "optionally" means that the substance may or may not be added. For example, "optionally add a defoamer and stir to disperse evenly" means that the defoamer may or may not be added. "Optional pigment and filler dispersant" means that the substance may or may not be added.

[0044] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0045] 1) In the polymer coating layer of the pre-laid waterproofing coiled material provided by the present invention, lamellar fillers are used. When the lamellar fillers are arranged horizontally in the polymer coating layer after film formation, the ability of the coating to block ultraviolet radiation can be improved to protect the pressure-sensitive adhesive layer, thereby improving the weather resistance, heat resistance and acid and alkali resistance of the entire pre-laid waterproofing coiled material. The waterproofing coiled material can still have good adhesion to the post-cast concrete when it is exposed to the sun for more than two months or longer during summer construction.

[0046] 2) During the construction process, the coiled material is easily polluted by dust, mud and sewage on the construction site. The surface of the coiled material needs to be washed before pouring concrete. In the protective coating, lamellar fillers are used. After the film is formed, the hardness of the lamellar filler coating surface increases, which improves the scrub resistance of the coating. It is ensured that the adhesive properties of the coiled material will not be affected during the washing process.

[0047] 3) An air entraining agent is introduced into the polymer coating layer of the pre-laid waterproofing membrane provided by the present invention, and during the drying process of the polymer coating, bubbles will burst, thereby forming some larger micropores or a thin coating with smaller micropores at the position where the bubbles burst on the surface of the pressure-sensitive adhesive layer. During the construction process of the pre-laid waterproofing membrane, when concrete is poured on the polymer coating layer, the concrete penetrates into the pressure-sensitive adhesive layer through the micropores and adheres to the pressure-sensitive adhesive layer, so that the entire pre-laid waterproofing membrane is adhered to the post-poured concrete, and has better bonding strength.

[0048] Other features and advantages of the present invention will be described in detail in the following detailed description. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0050] In these examples, the following materials were used:

[0051] TRITON CF-10 is a pigment and filler wetting agent (DOW)

[0052] Disperse 755W is a pigment and filler dispersant (Evonik)

[0053] Tianba 2012 is a styrene acrylic emulsion (DOW)

[0054] Wet270 is a substrate wetting agent (Evonik)

[0055] Texanol is a film-forming agent (Eastman)

[0056] Airase 4500 is a defoamer (Evonik)

[0057] aosae k12 is a rosin-based air entraining agent (Clariant)

[0058] AMP 95 is a pH regulator (DOW)

[0059] Acrysol TT935 is a thickener (DOW)

[0060] Table 1 shows the raw material compositions of the slurries of the polymer coating layers of Examples and Comparative Examples.

[0061] Table 1

[0062]

[0063] The difference between Comparative Example 1 and Example 1 is that the 800-mesh muscovite powder (lamellar filler) is replaced by 1250-mesh calcium carbonate (non-lamellar filler); the difference between Comparative Example 2 and Example 2 is that no rosin-based air-entraining agent is added.

[0064] The preparation method of the slurry of the polymer coating layer is:

[0065] (1) under stirring, a portion of water, lamellar filler, optional non-lamellar filler, optional pigment, optional pigment wetting agent, and optional pigment dispersant are stirred and dispersed uniformly in a stirring tank;

[0066] (2) optionally adding a defoaming agent and stirring to disperse uniformly;

[0067] (3) adding acrylic emulsion, the remaining water, air entraining agent, and optionally adding film-forming aid, thickener, substrate wetting agent, UV absorber, UV stabilizer, and other additives to obtain a slurry of the polymer coating layer.

[0068] The slurry of the polymer coating layer of each embodiment and comparative example is formed into a polymer coating layer to prepare a pre-laid waterproofing membrane.

[0069] The pre-laid waterproofing membrane includes a main waterproof sheet layer; a pressure-sensitive adhesive layer covering one surface of the main waterproof sheet layer; a polymer coating layer covering one surface of the pressure-sensitive adhesive layer; and a barrier film layer covering one surface of the polymer coating layer. The material of the main waterproof sheet layer is HDPE, and the material of the pressure-sensitive adhesive layer is styrene-butadiene-styrene adhesive. The thickness of the main waterproof sheet layer is 0.96mm, the thickness of the pressure-sensitive adhesive layer is 280μm, and the thickness of the polymer coating layer is 30μm.

[0070] The preparation method of pre-laid waterproofing membrane is a conventional method.

[0071] Test example:

[0072] 1. Peeling strength test with post-cast concrete

[0073] The test is carried out in accordance with GB / T 23457-2017 "Pre-laid waterproof membrane" standard.

[0074] 2. UV treatment

[0075] Remove the isolation material on the surface of the test piece, place the test piece with the adhesive surface facing the light source in a xenon arc lamp aging instrument that meets the requirements of GB / T16422.2, and the irradiation intensity is (60±2)W / m 2 (300nm~400nm), black mark temperature (65±3)℃. Spray for 18min every 2h while lighting. Take out the test piece at the specified time, place it in a room at (23±2)℃ for 24h, and then test it again.

[0076] 3. Heat treatment

[0077] Remove the isolation material on the surface of the test piece, place the test piece horizontally in a (70±2)℃ oven, take out the test piece according to the specified test time, place it in a (23±2)℃ room for 24h, and then test it again.

[0078] 4. Paint washability

[0079] According to the provisions of GB / T 9266-2009, the arbitration inspection should use a brush with a maximum pressure of (190±40)N. The test method of the maximum pressure of the brush is as follows: on the lower test bench of a pressure tester with a maximum range of no more than 1000N and a measurement deviation of less than 0.5% of the indicated value or a tensile tester with a compression function, paste No. 120 water sandpaper. The area of ​​the water sandpaper should be larger than the area of ​​the bristles. Immerse all the bristles of the brush in (23±2)℃ water for 30 minutes, remove the brush and shake off the water, place the brush with the bristles facing down on the No. 120 water sandpaper, and the center of the brush should be on the axis of the test bench of the test machine. Test the maximum pressure at a speed of 1mm / min. The maximum pressure is the maximum pressure value of the bristles. When the maximum pressure of the bristles exceeds the range of (190±40)N, a brush that meets the requirements should be selected again.

[0080] The test results are shown in Table 2:

[0081] Table 2

[0082]

[0083] In Comparative Example 2, no air entraining agent is added, and micropores are not easily formed on the coating surface. During the concrete pouring process, the concrete cannot penetrate into the pressure-sensitive adhesive layer, so the coiled material and the concrete cannot be bonded.

[0084] In Comparative Example 1, during the UV treatment and outdoor exposure process, the sub-sensitive adhesive layer on the roll material was damaged by the UV rays that penetrated the coating, so the bonding with the post-cast concrete failed; Comparative Example 1 uses ordinary calcium carbonate filler, and the hardness of the coating surface after film formation is insufficient, so its washability is poor.

[0085] Most of the fillers in Example 3 are also calcium carbonate fillers, so the hardness of the coating is insufficient, resulting in poor washability.

[0086] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A pre-laid waterproofing membrane, characterized in that: The pre-laid waterproof membrane includes: Main waterproof sheet layer; A pressure-sensitive adhesive layer is coated on one surface of the main waterproof sheet layer; a polymer coating layer covering one surface of the pressure-sensitive adhesive layer; an optional release film layer covering one surface of the polymer coating layer; The polymer coating layer is composed of the following raw materials by weight: 10-50 parts of water, 30-75 parts of acrylic emulsion, 30-70 parts of lamellar filler, 0.2 parts of air entraining agent, 0-70 parts of non-lamellar filler, 0-5 parts of pigment, 0-3 parts of pigment and filler wetting agent, 0-3 parts of pigment and filler dispersant, 0-3 parts of defoaming agent, 0-3 parts of film-forming aid, 0-3 parts of thickener, 0-5 parts of substrate wetting agent, 0-5 parts of ultraviolet absorber, 0-5 parts of ultraviolet light stabilizer, and 0-10 parts of other additives; The thickness of the polymer coating layer is 30-40 μm; The air entraining agent is selected from at least one of rosin resin air entraining agents, alkyl and alkyl aromatic sulfonic acid air entraining agents, fatty alcohol sulfonate air entraining agents, saponin air entraining agents, protein salt air entraining agents and petroleum sulfonic acid air entraining agents.

2. The pre-laid waterproofing membrane according to claim 1, wherein: The acrylic emulsion is selected from at least one of pure acrylic emulsion, styrene acrylic emulsion, silicone acrylic emulsion and acetate acrylic emulsion.

3. The pre-laid waterproofing membrane according to claim 1, wherein: The lamellar filler is selected from at least one of muscovite, pearl mica, phlogopite, yellow-green brittle mica, powdered mica, tetramethylsilyl mica, sodium taenia, flaky talc, bentonite, vermiculite, montmorillonite, multiferroic montmorillonite, hectorite, sauconite, beidellite, kaolin, phyllosilicate, volcanite, plate-crystalline silicon dioxide, flaky metal, flaky glass, chlorite, smectite, illite, synthetic hectorite, magadiite, hydrodimethoxysilane, staphylite, dickite, pearl clay, antigorite, chrysotile and pyrophyllite; The lamellar filler is in the form of lamellar sheets.

4. The pre-laid waterproofing membrane according to claim 1, wherein: The lamellar filler is selected from halloysite, synthetic phyllosilicate or trioctahedral illite.

5. The pre-laid waterproofing membrane according to claim 1, wherein: The water is selected from at least one of deionized water, purified water, distilled water and low-hardness tap water; The non-lamellar filler is at least one selected from calcium carbonate, kaolin clay, needle-shaped talc, calcined clay, structured clay, titanium dioxide, aluminum trihydrate, silicon dioxide, zinc oxide and barium sulfate; The pigment is titanium dioxide and / or zinc sulfide; The substrate wetting agent is selected from at least one of a surfactant-based substrate wetting agent, a low molecular weight siloxane-type surfactant-based substrate wetting agent, and a fluorocarbon-containing surfactant-based substrate wetting agent.

6. The pre-laid waterproofing membrane according to claim 1, wherein: The pigment and filler wetting agent is selected from at least one of sodium isopropyl naphthalene sulfonate and sodium butyl naphthalene sulfonate; The pigment dispersant is selected from at least one of polyacrylates, polyphosphates, polycarboxylates, cellulose derivatives, polyethylene glycol fatty acid esters and sodium lauryl sulfate; The defoaming agent is selected from at least one of polydimethylsiloxane, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropanolamine ether and polyoxypropylene polyoxyethylene glycerol ether; The film-forming aid is selected from at least one of dodecyl alcohol ester, benzyl alcohol, ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, tripropylene glycol n-butyl ether, propylene glycol phenyl ether hexanediol butyl ether acetate and ethyl 3-ethoxypropionate; The thickener is selected from at least one of an inorganic mineral thickener, a cellulose derivative thickener, an acrylic thickener and a polyurethane thickener; The ultraviolet absorber is selected from at least one of phenyl o-hydroxybenzoate, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorobenzotriazole and monobenzoic acid resorcinol ester; The ultraviolet light stabilizer is selected from at least one of 2,2'-thiobis(4-tert-octylphenoloxy)nickel, tris(1,2,2,6,6-pentamethylpiperidinyl)phosphite, 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and hexamethylphosphoric triamide; The other auxiliary agents include at least one of a mildew preventer, a preservative, a matting agent, a flame retardant, a conductive agent and a leveling agent.

7. The pre-laid waterproofing membrane according to claim 1, wherein: The material of the main waterproof sheet layer is selected from at least one of polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, polyvinyl chloride, vulcanized EPDM rubber and polyurethane; The material of the pressure-sensitive adhesive layer is selected from at least one of butyl rubber adhesive, polyisobutylene adhesive, butyl adhesive, acrylic adhesive, vinyl ether adhesive, styrene-isoprene-styrene adhesive, polybutadiene-ethylene-butylene-styrene adhesive, styrene-butadiene-styrene adhesive and styrene-butadiene rubber adhesive; The material of the isolation film layer is selected from at least one of a PET silicon-coated isolation film, a PE silicon-coated isolation film and a PP silicon-coated isolation film.

8. The pre-laid waterproofing membrane according to claim 1, wherein: The thickness of the main waterproof sheet layer is 0.5~2mm; The thickness of the pressure-sensitive adhesive layer is 100-500 μm.

9. The pre-laid waterproofing membrane according to claim 8, wherein: The thickness of the main waterproof sheet layer is 0.7-1.5 mm.

10. The pre-laid waterproofing membrane according to claim 8, wherein: The pressure-sensitive adhesive layer has a thickness of 250-350 μm.

11. The pre-laid waterproofing membrane according to claim 1, wherein: The method for preparing the slurry of the polymer coating layer comprises: (1) under stirring, a portion of water is stirred and dispersed uniformly with a lamellar filler, an optional non-lamellar filler, an optional pigment, an optional pigment wetting agent, and an optional pigment dispersant; (2) optionally adding a defoaming agent and stirring to disperse uniformly; (3) Adding acrylic emulsion, the remaining water, air entraining agent, and optionally adding film-forming aid, thickener, substrate wetting agent, UV absorber, UV stabilizer, and other additives to obtain a slurry of the polymer coating layer.

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