Environment-friendly water-based self-adhesive composition and application thereof, waterproof coiled material and preparation methods thereof

Abstract

The invention discloses an environment-friendly water-based self-adhesive composition and application thereof, a waterproof coiled material and preparation methods of the environment-friendly water-based self-adhesive composition and the waterproof coiled material. The environment-friendly water-based self-adhesive composition comprises the following components in parts by weight: 100 parts of VAE (Vinyl Acetate Ethylene) emulsion; 90 to 180 parts by weight of a styrene-acrylic emulsion based on 100 parts by weight of the VAE emulsion; based on 100 parts by weight of the VAE emulsion, 4 to 8 parts by weight of a defoaming agent; 40 to 80 parts by weight of a wetting dispersant based on 100 parts by weight of the VAE emulsion; 1.2 parts by weight to 2.5 parts by weight of a thickening agent based on 100 parts by weight of the VAE emulsion; 38 to 120.5 parts by weight of a dispersant based on 100 parts by weight of the VAE emulsion; and 50-90 parts by weight of a first filler based on 100 parts by weight of the VAE emulsion. The environment-friendly water-based self-adhesive composition has a good environment-friendly effect, construction is carried out without adopting a warming process, the waterproof coiled material can be constructed by adopting a dry paving method and a wet paving method, and the waterproof coiled material can be firmly bonded with a base surface.

Description

Technical Field

[0001] The present application belongs to the technical field of building waterproof materials, and in particular relates to an environmentally friendly water-based self-adhesive composition and its use, a waterproof roll material and respective preparation methods. Background Art

[0002] SBS waterproofing membrane is one of the most widely used waterproofing membrane products. From an environmental protection perspective, some harmful gases will be produced during the traditional hot-melt construction process, causing environmental pollution and affecting human health. At the same time, some manufacturers of modified asphalt waterproofing membranes on the market use raw materials such as waste oil and recycled rubber powder, which will cause great pollution to the environment during construction. In addition, the hot-melt construction process used by SBS waterproofing membranes is rough, and the size and time of the baking flame used in the hot-melt construction process are difficult to control. Insufficient baking will lead to a decrease in bonding performance, while excessive baking will lead to polymer decomposition in the waterproofing membrane and a decrease in material performance. Summary of the invention

[0003] The embodiments of the present application provide an environmentally friendly water-based self-adhesive composition and a waterproof membrane. The environmentally friendly water-based self-adhesive composition has good bonding performance and environmental protection effects. The waterproof membrane can be constructed by dry laying and wet laying methods. There is no need to use a baking process for construction. The construction is convenient and the waterproof membrane can be firmly bonded to the base surface.

[0004] In a first aspect, the present application provides an environmentally friendly water-based self-adhesive composition, comprising the following components in parts by weight: 100 parts by weight of VAE emulsion; 90 parts by weight to 180 parts by weight of styrene-acrylic emulsion based on 100 parts by weight of VAE emulsion; 4 parts by weight to 8 parts by weight of a defoamer based on 100 parts by weight of VAE emulsion; 40 parts by weight to 80 parts by weight of a wetting and dispersing agent based on 100 parts by weight of VAE emulsion; 1.2 parts by weight to 2.5 parts by weight of a thickener based on 100 parts by weight of VAE emulsion; 38 parts by weight to 120.5 parts by weight of a dispersant based on 100 parts by weight of VAE emulsion; and 50 parts by weight to 90 parts by weight of a first filler based on 100 parts by weight of VAE emulsion.

[0005] According to an embodiment of the first aspect of the present application, the solid content of the VAE emulsion is ≥50%, the viscosity is 100 mPa·s to 500 mPa·s, and the pH value is 4.0 to 5.0.

[0006] According to an embodiment of the first aspect of the present application, the VAE emulsion includes one or a combination of emulsion 1318, emulsion 1319, emulsion 1320, emulsion 1321, and emulsion 1350.

[0007] According to the embodiment of the first aspect of the present application, the solid content of the styrene-acrylic emulsion is 50% to 60%, the viscosity is 200 mPa·s to 200 mPa·s, and the pH value is 7 to 9.

[0008] According to an embodiment of the first aspect of the present application, the styrene acrylic emulsion includes one or a combination of RS-300A emulsion, RS-300L emulsion, and WT-300S.

[0009] According to an embodiment of the first aspect of the present application, the defoaming agent includes one or a combination of silicone defoaming agents, polyether defoaming agents, and phosphate defoaming agents.

[0010] According to an embodiment of the first aspect of the present application, the defoaming agent includes DF1668, DF1306, or one or a combination of several thereof.

[0011] According to an embodiment of the first aspect of the present application, the wetting dispersant includes one or a combination of polyacrylic acid sodium salt aqueous pigment dispersant, polycarboxylate dispersant, and alkylphenol polyoxyethylene ether dispersant.

[0012] According to an embodiment of the first aspect of the present application, the wetting and dispersing agent includes Orotan TM 9830A, EH-6, EH-9, HSHX-407 or a combination of them.

[0013] According to an embodiment of the first aspect of the present application, the thickener includes one or a combination of butylated chlorinated paraffin, hydroxyethyl cellulose, hydroxypropyl starch, and propylene glycol alginate.

[0014] According to an embodiment of the first aspect of the present application, the thickener includes one or a combination of B50K, EXP-985, and TX98772.

[0015] According to an embodiment of the first aspect of the present application, the dispersant includes one or a combination of several of chlorinated paraffin, C5 hydrogenated resin, sodium polycarboxylate, sodium tripolyphosphate, modified phosphate polymer dispersant, and hydrophobically modified ammonium acrylate copolymer.

[0016] According to an embodiment of the first aspect of the present application, the dispersant includes W-58, Disuper S18, Coadd TM One or a combination of D-26.

[0017] According to an embodiment of the first aspect of the present application, the first filler includes one or a combination of talcum powder, barium sulfate, light calcium powder, heavy calcium powder, and fly ash.

[0018] According to an embodiment of the first aspect of the present application, the barium sulfate is ultrafine barium sulfate, and its average particle size is 0.9 μm to 1.2 μm.

[0019] According to the embodiment of the first aspect of the present application, the average particle size of light calcium powder, heavy calcium powder and fly ash are all 800 mesh to 1200 mesh.

[0020] In the second aspect, the present application provides a method for preparing an environmentally friendly water-based self-adhesive composition, comprising: dispersing VAE emulsion, styrene-acrylic emulsion, dispersant, and defoaming agent, and heating to 50°C to 180°C to obtain a first dispersion; adding a wetting dispersant to the first dispersion to obtain a second dispersion; adding a thickener to the second dispersion to obtain a third dispersion; adding a first filler to the third dispersion to obtain an environmentally friendly water-based self-adhesive composition.

[0021] In the third aspect, the present application provides a waterproof roll material, comprising: a main substrate layer, an asphalt coating layer, respectively covering the two opposite surfaces of the main substrate layer; a surface layer, covering the side of one of the two asphalt coating layers away from the main substrate layer; an environmentally friendly water-based self-adhesive layer, formed by coating an environmentally friendly water-based self-adhesive composition on the side of the other asphalt coating layer away from the main substrate layer.

[0022] According to an embodiment of the third aspect of the present application, the main substrate layer is one of a polyester base, a glass fiber base, and a glass fiber reinforced polyester base.

[0023] According to an embodiment of the third aspect of the present application, the surface layer is a polyolefin film layer.

[0024] According to an embodiment of the third aspect of the present application, the surface layer is one of a polyethylene layer, a polypropylene layer, and an extruded composite layer thereof.

[0025] According to an embodiment of the third aspect of the present application, the asphalt coating layer is formed by coating an asphalt coating composition, wherein the asphalt coating composition includes the following components in parts by weight: 100 parts by weight of base asphalt; 10 to 25 parts by weight of oil based on 100 parts by weight of base asphalt; 3 to 7.5 parts by weight of a polymer modifier based on 100 parts by weight of base asphalt; 10 to 18 parts by weight of rubber powder based on 100 parts by weight of base asphalt; and 62.5 to 112.5 parts by weight of a second filler based on 100 parts by weight of base asphalt.

[0026] According to an embodiment of the third aspect of the present application, the needle penetration of the base asphalt is 60 to 100, with the unit being 1 / 10 mm.

[0027] According to an embodiment of the third aspect of the present application, the oil component includes one or a combination of 61# base oil, cyclohexane oil, R9, and aromatic oil.

[0028] According to an embodiment of the third aspect of the present application, the polymer modifier is a butadiene styrene butadiene triblock copolymer, namely SBS, having a molecular weight of 150,000 to 450,000 and a mass content of styrene segments of 20% to 30%.

[0029] According to an embodiment of the third aspect of the present application, the rubber powder is 60-80 mesh tire rubber powder, wherein the mass content of rubber is 30%-50%, and the mass content of ash is 10%-30%.

[0030] According to an embodiment of the third aspect of the present application, the second filler includes one or a combination of talcum powder, light calcium powder, heavy calcium powder, and fly ash.

[0031] According to an embodiment of the third aspect of the present application, a method for preparing an asphalt coating includes: A1, heating a base asphalt and an oil component for dispersion to obtain a base asphalt dispersion liquid; A2, adding a polymer modifier to the base asphalt dispersion liquid for dispersion to obtain a polymer modifier dispersion; A3, adding rubber powder to the polymer modifier dispersion for dispersion and heat preservation treatment to obtain a rubber powder dispersion; A4, adding a second filler to the rubber powder dispersion for dispersion to obtain an asphalt coating composition.

[0032] According to an embodiment of the third aspect of the present application, the waterproof roll material further includes an isolation membrane, which is arranged on the side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer.

[0033] According to an embodiment of the third aspect of the present application, the isolation film is a PET aluminized film.

[0034] In a fourth aspect, the present application provides a method for preparing a waterproof roll material, comprising: B1, applying an asphalt coating composition to the opposite surfaces of a main substrate layer to form an asphalt coating layer; B2, covering a surface layer on the side of one asphalt coating layer away from the main substrate layer, and uniformly applying an environmentally friendly water-based self-adhesive composition on the side of the other asphalt coating layer away from the main substrate layer, forming an environmentally friendly water-based self-adhesive layer on the surface of the asphalt coating layer, and obtaining a waterproof roll material.

[0035] According to an embodiment of the fourth aspect, the method for preparing the waterproof membrane further includes: B3, covering the side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer with an isolation film.

[0036] According to an embodiment of the fifth aspect of the present application, the above-mentioned environmentally friendly water-based self-adhesive composition of the present application is used in the preparation of waterproof membranes, or is added to adhesive materials as a component of bonding materials.

[0037] In the sixth aspect, an embodiment of the present application provides a waterproof roll material, comprising an asphalt coating layer and a surface layer, and an environmentally friendly water-based self-adhesive layer; wherein the surface layer is arranged on one side surface of the asphalt coating layer; the environmentally friendly water-based self-adhesive layer is formed by coating an environmentally friendly water-based self-adhesive composition on the side of the asphalt coating layer away from the surface layer, and the environmentally friendly water-based self-adhesive composition is the above-mentioned environmentally friendly water-based self-adhesive composition.

[0038] According to an embodiment of the sixth aspect of the present application, the waterproof membrane further includes an isolation membrane, which covers the side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer.

[0039] The environmentally friendly water-based self-adhesive composition of the embodiment of the present application, wherein the VAE emulsion and the styrene acrylic emulsion and their reaction products are all degradable, have little impact on the environment, and have good environmental protection effects; after the reaction, it has good bonding properties and can be firmly bonded to the base surface, and there is no need to use a baking process for construction, and the construction is convenient. Whether the dry laying method or the wet laying method is used for construction, the waterproof membrane can be firmly bonded to the base surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 It is a flow chart of a method for preparing an environmentally friendly water-based self-adhesive composition provided in an embodiment of the present application.

[0042] Figure 2 It is a schematic flow chart of the method for preparing the waterproof membrane provided in the embodiment of the present application.

[0043] Figure 3 It is a schematic diagram of the structure of a waterproof membrane provided in one embodiment of the present application.

[0044] Figure 4 It is a schematic structural diagram of a waterproof membrane provided in another embodiment of the present application.

[0045] Explanation of the reference numerals: 1. Main substrate layer; 2. Asphalt coating layer; 3. Surface layer; 4. Environmentally friendly water-based self-adhesive layer; 5. Isolation layer. DETAILED DESCRIPTION

[0046] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0048] In order to solve the problems of the prior art, the embodiments of the present application provide an environmentally friendly water-based self-adhesive composition, a waterproof roll material and respective preparation methods. The environmentally friendly water-based self-adhesive composition and the preparation method thereof provided in the embodiments of the present application are first introduced below.

[0049] In a first aspect, an embodiment of the present application provides an environmentally friendly water-based self-adhesive composition, comprising the following components in parts by weight: 100 parts by weight of VAE emulsion; 90 parts by weight to 180 parts by weight of styrene-acrylic emulsion based on 100 parts by weight of VAE emulsion; 4 parts by weight to 8 parts by weight of a defoamer based on 100 parts by weight of VAE emulsion; 40 parts by weight to 80 parts by weight of a wetting and dispersing agent based on 100 parts by weight of VAE emulsion; 1.2 parts by weight to 2.5 parts by weight of a thickener based on 100 parts by weight of VAE emulsion; 38 parts by weight to 120.5 parts by weight of a dispersant based on 100 parts by weight of VAE emulsion; and 50 parts by weight to 90 parts by weight of a first filler based on 100 parts by weight of VAE emulsion.

[0050] The environmentally friendly water-based self-adhesive composition of the embodiment of the present application, wherein the VAE emulsion and the styrene-acrylic emulsion and their reaction products are all degradable, have little impact on the environment, and the use of the environmentally friendly water-based self-adhesive composition to construct waterproof rolls has a good environmental protection effect; the VAE emulsion and the styrene-acrylic emulsion have good bonding properties after the reaction, and form a firm bond with the base surface, and whether the dry paving method or the wet paving method is used for construction, the waterproof roll can be firmly bonded to the base surface. In addition, the environmentally friendly water-based self-adhesive composition is easy to construct, and can be applied to the surface of the asphalt coating layer of the waterproof roll by methods including but not limited to spraying, roller coating, brushing, etc., and the environmentally friendly water-based self-adhesive layer obtained after the environmentally friendly water-based self-adhesive composition is dried is firmly bonded to the base surface, so that the environmentally friendly water-based self-adhesive composition can give full play to its bonding properties and extend the service life of the waterproof roll.

[0051] In the embodiments of the present application, the dry-laying method for laying waterproof coiled materials includes: applying a primer on the base surface, laying the waterproof coiled materials after the primer is dried, and then directly laminating and bonding the environmentally friendly water-based self-adhesive layer of the waterproof coiled materials to the base surface on the dried primer layer, so that the waterproof coiled materials are bonded to the base surface. The wet-laying method refers to: cleaning and moistening the base surface, and then preparing cement slurry and applying it to the position where the waterproof coiled materials need to be laid on the base surface to form a cement slurry layer, and finally locating the position where the waterproof coiled materials need to be laid on the cement slurry layer, and then laying the waterproof coiled materials, so that the environmentally friendly water-based self-adhesive layer formed by the environmentally friendly water-based composition in the waterproof coiled materials is bonded to the cement slurry layer, so that the waterproof coiled materials are bonded to the base surface.

[0052] The environmentally friendly water-based self-adhesive composition of the embodiment of the present application is made of water-based emulsion material, does not produce harmful gases, can reduce the impact on the environment, prevent environmental pollution, and has little impact on human health. There is no need to use the baking process for construction, the construction process is simple and convenient, the construction effect is easier to control, and the problem of reduced bonding performance of waterproof coiled materials due to insufficient baking is avoided, as well as the problem of polymer decomposition and reduced material performance in waterproof coiled materials due to excessive baking is avoided, so that the waterproof coiled materials made of the environmentally friendly water-based self-adhesive composition have good waterproof performance, bonding strength and service life.

[0053] In the embodiments of the present application, the VAE emulsion is a vinyl acetate-ethylene copolymer emulsion, with a solid content of ≥50%, a viscosity of 100mP·s to 5000mP·s, and a pH value of 4.0 to 5.0. The VAE emulsion having the above-mentioned properties and contents has good adaptability to various cements and first fillers, and the obtained environmentally friendly water-based self-adhesive composition has good brushing performance and is not easy to sag when roller-coated. The VAE emulsion interacts with the cement hydration product and has a good waterproof effect, so that the environmentally friendly water-based composition has excellent tensile strength, the formed coating has high bonding strength with the asphalt coating layer of the waterproof coiled material, and the environmentally friendly water-based composition has excellent durability.

[0054] In some embodiments of the present application, the VAE emulsion includes one or a combination of 1318 emulsion, 1319 emulsion, 1320 emulsion, 1321 emulsion, and 1350 emulsion. Among them, the solid content of 1318 emulsion is 54.5% to 56.5%, the viscosity is 3200mPa·s to 4400mPa·s, and the pH value is 4.0 to 5.0. The solid content of 1319 emulsion is ≥60%, the viscosity is 500mPa·s to 1500mPa·s, and the pH value is 4.0 to 5.0. The solid content of 1320 emulsion is 54.5% to 56.5%, the viscosity is 3000mPa·s to 5000mPa·s. mPa·s, pH value is 4.0-5.0. The solid content of 1321 emulsion is 54.5%-56.5%, the viscosity is 100mPa·s-2500mPa·s, preferably 390mPa·s-500mPa·s, and the pH value is 3.0-6.0. The solid content of 1350 emulsion is 54.5%-56.5%, the viscosity is 1000mPa·s-500mPa·s, and the pH value is 4.0-5.0. Exemplarily, 1321 emulsion purchased from Celanese (Shanghai) International Trading Co., Ltd. or other VAE emulsions can be selected.

[0055] In some embodiments of the present application, the solid content of the styrene acrylic emulsion is 50% to 60%, the viscosity is 200mPa·s to 2000mPa·s, and the pH value is 7 to 9. Styrene acrylic emulsion refers to a styrene / acrylate copolymer polymer emulsion. Styrene acrylic emulsion that meets this definition can have good compatibility with the concrete base surface, and after being combined with the VAE emulsion, the bonding performance of the environmentally friendly water-based self-adhesive composition is synergistically improved.

[0056] In some embodiments of the present application, the styrene acrylic emulsion includes one or a combination of RS-300A emulsion, RS-300L emulsion, and WT-300S. Among them, the solid content of RS-300A emulsion is 54% to 56%, the viscosity is 200mPa·s to 2000mPa·s, and the pH value is 7 to 9. The solid content of WT-300s emulsion is ≥57%, the viscosity is 200mPa·s to 2000mPa·s, and the pH value is 7 to 9.

[0057] For example, the styrene-acrylic emulsion can be RS-300L emulsion of Badfu Group Co., Ltd., which is a styrene / acrylate copolymer emulsion with a solid content of 50% to 60% and a pH value of 9. RS-300L emulsion is a soft styrene-acrylic emulsion, and the coating has excellent waterproof and alkali resistance, good compatibility with cement and powder, and good resilience, elongation and toughness, so that the environmentally friendly water-based self-adhesive composition has good elasticity, elongation and toughness. Alternatively, the styrene-acrylic emulsion uses RS-300A emulsion and WT-300S emulsion of Badfu Group Co., Ltd.

[0058] In the embodiments of the present application, the environmentally friendly water-based self-adhesive composition prepared by combining VAE emulsion and styrene-acrylic emulsion has good self-healing properties after forming an environmentally friendly water-based self-adhesive layer, and can self-repair wounds with a small area (length ≤ 10 cm, elongated), which is suitable for situations where there are sharp parts on the base surface. And the waterproof roll formed by the environmentally friendly water-based self-adhesive composition has good waterproof performance, elongation performance and tensile resistance. After the waterproof roll is completed, the elongated wounds with a value of 10 cm and below (such as 1, 3, 5, 8 cm, etc.) cut by a sharp blade or other sharp objects can heal themselves, and will not affect the waterproof effect of the waterproof roll. Thereby, the waterproof roll prepared is adapted to rough surfaces, or can adapt to situations where the base surface changes greatly during the service of the waterproof roll, and the self-healing performance of the environmentally friendly water-based self-adhesive layer is used to make the waterproof roll play an effective waterproof role.

[0059] In some embodiments of the present application, the defoamer includes one or a combination of an organic silicon defoamer, an organic silicon defoamer, a polyether defoamer, and a phosphate defoamer. For example, the defoamer can be at least an organic silicon defoamer with a brand name of DF1668 from Foshan Zhaojing Environmental Protection Technology Co., Ltd. and a brand name of DF1306 from Foshan Changtian Environmental Protection Technology Co., Ltd.

[0060] In some embodiments of the present application, the wetting dispersant includes one or a combination of polyacrylate sodium salt aqueous pigment dispersant, polycarboxylate dispersant, and alkylphenol polyoxyethylene ether dispersant. The wetting dispersant has high dispersing efficiency and good water resistance, is suitable for water-based emulsion coatings, and can fully wet the components of the environmentally friendly water-based self-adhesive composition, such as water-based emulsions including VAE emulsions and styrene-acrylic emulsions, and disperses with thickeners and first fillers to form a uniform system, and then forms a uniform and consistent environmentally friendly water-based self-adhesive layer after being coated on the surface of the asphalt coating layer in the waterproof membrane away from the main substrate layer.

[0061] In some embodiments of the present application, the wetting and dispersing agent includes Orotan TM9830A, EH-6, EH-9, HSH X-407 or a combination thereof. For example, the polyacrylic acid sodium salt aqueous pigment dispersant can be selected from Guangzhou Kaiju New Materials Co., Ltd. with the brand name of Orotan TM 9830A dispersant. Or choose EH-6, EH-9, HSH X-407 wetting dispersant purchased from Jiangsu Haian Petrochemical Plant.

[0062] In some embodiments of the present application, the thickener includes one or a combination of butylated chlorinated paraffin, hydroxyethyl cellulose (abbreviated as HEC), hydroxypropyl starch, and propylene glycol alginate.

[0063] In some embodiments of the present application, the thickener includes one or a combination of B50K, EXP-985, and TX98772. The thickener is used to adjust the environmentally friendly water-based self-adhesive composition to have a suitable viscosity so that the environmentally friendly water-based self-adhesive composition can be quickly coated under the premise of forming a coating film.

[0064] In some embodiments of the present application, the dispersant includes one or a combination of chlorinated paraffin, C5 hydrogenated resin, polycarboxylic acid sodium salt, sodium tripolyphosphate, modified phosphate polymer dispersant, and hydrophobically modified acrylic acid ammonium salt copolymer. In the embodiments of the present application, the VAE emulsion, styrene acrylic emulsion, thickener, and first filler are dispersed into a uniform and consistent environmentally friendly water-based self-adhesive composition system by the dispersant.

[0065] In some embodiments of the present application, the dispersant includes W-58, Disuper S18, Coadd TM One or a combination of several of D-26. For example, the dispersant may be a polycarboxylate sodium salt dispersant with a brand name of W-58 from Guangzhou Kefeng Chemical Co., Ltd. The chlorinated paraffin may be 42# or 52# chlorinated paraffin, and at least 52# chlorinated paraffin from Jiangxi Dongfang Julong Chemical Co., Ltd. may be used as the dispersant.

[0066] In some embodiments, the weight percentage of the dispersant may be 40, 45, 50, 54, 60, 64, 65, 70, 72, 75, 80, 81, 85, 86, 90, 93, 95, 97, 100, 105, 108, 110, 112, 116, 120 parts by weight.

[0067] In some embodiments of the present application, the first filler includes one or a combination of talcum powder, barium sulfate, light calcium powder, heavy calcium powder, and fly ash. Among them, the barium sulfate is ultrafine barium sulfate, and its average particle size is 0.9 μm to 1.2 μm. The average particle size of talcum powder is 200 mesh to 400 mesh. The average particle size of light calcium powder, heavy calcium powder, and fly ash is 800 mesh to 1200 mesh. Exemplarily, at least the ultrafine barium sulfate of Guizhou Nano Powder Industry Co., Ltd. can be selected.

[0068] In the embodiments of the present application, talcum powder, superfine barium sulfate, light calcium powder, heavy calcium powder, fly ash and other components are added as the first filler to increase the film-forming property of the environmentally friendly water-based self-adhesive composition.

[0069] In a second aspect, the present application provides a method for preparing an environmentally friendly water-based self-adhesive composition, such as Figure 1 As shown, it includes: S1, dispersing VAE emulsion, styrene acrylic emulsion, dispersant and defoaming agent, and heating to 150°C to 180°C to obtain a first dispersion; S2, adding a wetting dispersant to the first dispersion to obtain a second dispersion; S3, adding a thickener to the second dispersion to obtain a third dispersion; S4, adding a first filler to the third dispersion to obtain an environmentally friendly water-based self-adhesive composition.

[0070] The preparation method of the environmentally friendly water-based self-adhesive composition of the embodiment of the present application is as follows: first, a VAE emulsion, a styrene-acrylic emulsion and a dispersant are heated at 150° C. to 180° C., and a defoaming agent is added to disperse to obtain a first dispersion, and then a wetting dispersant is added to evenly disperse the VAE emulsion and the styrene-acrylic emulsion to obtain a second dispersion with a uniform dispersion system, and a thickener is added to the second dispersion to adjust the viscosity of the third dispersion; finally, a first filler is added to the third dispersion to obtain an environmentally friendly water-based self-adhesive composition with strong bonding force and relatively environmentally friendly.

[0071] In the embodiments of the present application, by adding VAE emulsion and styrene acrylic emulsion as well as dispersant and defoamer into a reactor for dispersion and heating to 150°C to 180°C, a solid or high-viscosity and fluid dispersant such as hydrogenated paraffin and C5 hydrogenated resin can be liquefied or converted into a state with lower viscosity, thereby dispersing the VAE emulsion and styrene acrylic emulsion into a first dispersed material of a uniform system.

[0072] Thirdly, Figure 3 As shown, the present application provides a waterproof roll material, comprising: a main substrate layer 1; an asphalt coating layer 2, respectively covering the two opposite surfaces of the main substrate layer 1; a surface layer 3, covering the side of one of the two asphalt coating layers 2 away from the main substrate layer 1; an environmentally friendly water-based self-adhesive layer 4, formed by coating the above-mentioned environmentally friendly water-based self-adhesive composition on the side of the other asphalt coating layer 2 away from the main substrate layer 1.

[0073] The waterproofing membrane of the embodiment of the present application utilizes the super strong adhesive force of the environmentally friendly water-based self-adhesive layer to improve the bonding strength between the asphalt coating layer of the waterproofing membrane and the base surface, so that the waterproofing membrane as a whole forms a firm connection with the base surface (such as a concrete base surface), improves the waterproofing quality of the waterproofing membrane, and solves the problem of the rough construction effect and difficult control of the traditional hot-melt baking construction process of the traditional SBS membrane, which causes the decline in the adhesive performance of the waterproofing membrane and the decline in material performance. And it is improved on the basis of the existing SBS waterproofing membrane, starting from actual production, meeting the production and operation goals of the enterprise while solving the pain points that cause environmental pollution.

[0074] The waterproof membrane provided in the embodiment of the present application no longer needs to be laid through a baking process. An environmentally friendly water-based self-adhesive composition can be used and a dry laying method or a wet laying method can be adopted for construction. The asphalt coating layer of the waterproof membrane can form a firm bond with the base surface, thereby improving the bonding performance of the waterproof membrane, thereby improving the waterproof quality of the waterproof membrane and extending the service life of the waterproof membrane.

[0075] The waterproof roll provided in the embodiment of the present application contains a main substrate layer, also known as a tire waterproof roll, wherein the surface layer is firmly bonded to the asphalt coating layer and does not delaminate at low temperatures (-26°C), thereby ensuring that the waterproof roll has a good waterproof effect.

[0076] In some embodiments of the present application, the main substrate layer is one of a polyester substrate, a glass fiber substrate, and a glass fiber reinforced polyester substrate.

[0077] In some embodiments of the present application, the surface layer is a polyolefin film layer.

[0078] In some embodiments of the present application, the surface layer is one of a polyethylene layer, a polypropylene layer, and an extruded composite layer thereof.

[0079] In some embodiments of the present application, the asphalt coating layer is formed by coating an asphalt coating composition, wherein the asphalt coating composition includes the following components in parts by weight: 100 parts by weight of base asphalt; 10 to 25 parts by weight of oil based on 100 parts by weight of base asphalt; 3 to 7.5 parts by weight of a polymer modifier based on 100 parts by weight of base asphalt; 10 to 18 parts by weight of rubber powder based on 100 parts by weight of base asphalt; 62.5 to 112.5 parts by weight of a second filler based on 100 parts by weight of base asphalt. The asphalt coating layer can firmly bond the surface layer to the main substrate layer.

[0080] In some embodiments of the present application, the penetration of the base asphalt is 60 to 100, with the unit being 1 / 10 mm. The smaller the penetration value of the asphalt, the harder the asphalt, the greater the viscosity, and the stronger the ability to resist shear deformation. 1 / 10 mm is the unit of penetration.

[0081] In the embodiments of the present application, the base asphalt can be selected from asphalt with grades of 70# and 90# to provide the main body of the waterproof membrane with waterproof performance.

[0082] In some embodiments of the present application, the oil includes one or a combination of 61# base oil, naphthenic oil, R9, and aromatic oil. The oil can improve the aging and low temperature performance of asphalt.

[0083] In some embodiments of the present application, the polymer modifier is a butadiene styrene butadiene triblock copolymer (i.e. Styrene-Butadiene-Styrene, abbreviated as SBS), with a molecular weight of 150,000 to 450,000 and a mass content of styrene segments of 20% to 30%. SBS is used to improve the high temperature resistance, low temperature resistance and aging resistance of the waterproof membrane.

[0084] In some embodiments of the present application, the rubber powder is 60-80 mesh tire rubber powder, wherein the mass content of rubber is 30%-50%, and the mass content of ash is 10%-30%. The rubber powder is mainly used to reduce the cost of waterproof coiled materials and improve the high temperature resistance of waterproof coiled materials.

[0085] In some embodiments of the present application, the second filler includes one or a combination of talcum powder, light calcium powder, heavy calcium powder, and fly ash.

[0086] In some embodiments of the present application, the average particle size of talc powder is 200-400 mesh.

[0087] In some embodiments of the present application, the average particle size of light calcium powder, heavy calcium powder, and fly ash is 800 mesh to 1200 mesh.

[0088] In some embodiments of the present application, the preparation method of the asphalt coating includes: A1, heating the base asphalt and oil to disperse them to obtain a base asphalt dispersion liquid; A2, adding a polymer modifier to the base asphalt dispersion liquid to disperse it to obtain a polymer modifier dispersion; A3, adding rubber powder to the polymer modifier dispersion to disperse and insulate it to obtain a rubber powder dispersion; A4, adding a second filler to the rubber powder dispersion to disperse it to obtain an asphalt coating composition.

[0089] In the embodiments of the present application, the method for preparing the asphalt coating can fully mix several components to prepare the asphalt coating composition.

[0090] In some embodiments of the present application, the waterproof membrane further includes an isolation membrane, which is disposed on a side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer.

[0091] In some embodiments of the present application, the isolation film is a PET aluminized film.

[0092] In a fourth aspect, the present application provides a method for preparing a waterproof roll material, such as Figure 2 As shown, it includes: B1, applying the asphalt coating composition on the opposite sides of the main substrate layer to form an asphalt coating layer; B2, covering the surface layer on the side of one of the asphalt coating layers away from the main substrate layer, and uniformly applying an environmentally friendly water-based self-adhesive composition on the side of the other asphalt coating layer away from the main substrate layer to form an environmentally friendly water-based self-adhesive layer on the surface of the asphalt coating layer to obtain a waterproof membrane.

[0093] The preparation method of the waterproof membrane of the embodiment of the present application is to form an asphalt coating layer by coating an asphalt coating composition on the opposite surfaces of the main substrate layer, and to cover the surface of one of the asphalt coating layers away from the main substrate layer with a surface layer, and to coat the surface of the other asphalt coating layer with an environmentally friendly water-based self-adhesive composition to form an environmentally friendly water-based self-adhesive layer, thereby preparing a waterproof membrane with good bonding performance with a concrete base surface and convenient construction, and utilizing the environmentally friendly water-based self-adhesive layer to improve the bonding performance with the base surface, thereby improving the waterproof performance of the waterproof membrane and extending the service life of the waterproof membrane.

[0094] In the embodiments of the present application, the environmentally friendly water-based self-adhesive composition can be applied to the side of the asphalt coating layer away from the main substrate layer by spraying, rolling, brushing, etc., so that the environmentally friendly water-based self-adhesive layer and the asphalt coating layer are combined. The construction process is simple, which greatly improves the efficiency of the construction process, thereby making the asphalt coating layer of the waterproof membrane firmly bonded to the base surface.

[0095] In some embodiments of the present application, the method for preparing the waterproof membrane further includes: B3, covering the isolation film 5 on the side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer.

[0096] In some embodiments of the present application, after the asphalt coating composition is coated on the opposite sides of the main substrate layer to form asphalt coating layers, the surface layer is covered on the side of one of the asphalt coating layers away from the main substrate layer.

[0097] In the fifth aspect, in some embodiments of the present application, the environmentally friendly water-based self-adhesive composition is used in the preparation of waterproof membranes. Alternatively, the environmentally friendly water-based self-adhesive composition is added to the adhesive material as a component of the adhesive material, that is, the environmentally friendly water-based self-adhesive composition is used to prepare the adhesive material, for bonding and sealing parts, or for bonding and sealing the building / structure structure. Exemplarily, the environmentally friendly water-based self-adhesive composition can be used alone as an adhesive material at a mass content of 100%.

[0098] In other embodiments, the environmentally friendly water-based self-adhesive composition can be used as an additive in a mass content of 50% to 99% for preparing a bonding material. Exemplarily, the mass content of the environmentally friendly water-based self-adhesive composition in the bonding material can be 50%, 53%, 55%, 60%, 70%, 75%, 80%, 85%, 90%, 95%, 97%. Preferably, the mass content of the environmentally friendly water-based self-adhesive composition in the bonding material is 50% to 80%. When in use, the environmentally friendly water-based self-adhesive composition or the bonding material containing the environmentally friendly water-based self-adhesive composition can be dried before bonding to make full use of the viscosity of the environmentally friendly water-based self-adhesive composition.

[0099] Sixth, such as Figure 4 As shown, the embodiment of the present application provides a waterproof roll material, including an asphalt coating layer 2 and a surface layer 3, and an environmentally friendly water-based self-adhesive layer 4; wherein the surface layer 3 is arranged on one side of the asphalt coating layer 2; the environmentally friendly water-based self-adhesive layer 4 is formed by coating an environmentally friendly water-based self-adhesive composition on the side of the asphalt coating layer 2 away from the surface layer 3, and the environmentally friendly water-based self-adhesive composition is the above-mentioned environmentally friendly water-based self-adhesive composition. This waterproof roll material does not contain a main substrate layer, and is also called a tireless waterproof roll material.

[0100] In some embodiments, the waterproofing membrane further includes an isolation film, which covers the side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer. It should be noted that the surface layer, asphalt coating layer, environmentally friendly water-based self-adhesive layer, and isolation film in this tireless waterproofing membrane can all be made of the aforementioned corresponding materials, only excluding the main substrate layer. The materials of the surface layer, asphalt coating layer, environmentally friendly water-based self-adhesive layer, and isolation film are not described in detail here.

[0101] In order to make the technical means, creative features, objectives and effects of the technical solution of the present application easy to understand, the environmentally friendly water-based self-adhesive composition and waterproof membrane of the present application are further explained below in combination with specific embodiments.

[0102] Asphalt coating composition and preparation method thereof

[0103] An asphalt coating composition includes the following components in parts by weight: 100 parts by weight of base asphalt; 15 parts by weight of oil based on 100 parts by weight of base asphalt; 7.5 parts by weight of a polymer modifier based on 100 parts by weight of base asphalt; 18 parts by weight of rubber powder based on 100 parts by weight of base asphalt; and 75 parts by weight of a second filler based on 100 parts by weight of base asphalt. Among them, the matrix asphalt is 70# asphalt, purchased from Alpha Jiangyin Asphalt Co., Ltd.; the oil is 61# base oil, purchased from Hunan Zhongbao Chemical Co., Ltd.; the polymer modifier is SBS, with a molecular weight of 150,000-450,000, a styrene chain segment mass content of 20%-30%, and a brand of LG411, purchased from LG of South Korea; the rubber powder is 60 mesh tire rubber powder, with a rubber mass content of 30%-50%, and an ash mass content of 10%-30%, purchased from Hunan Hedeli Rubber Technology Co., Ltd.; the second filler is talcum powder, with an average particle size of 200 mesh-400 mesh, purchased from Hubei Pengyuan New Materials Co., Ltd.

[0104] The asphalt coating composition is prepared according to the following preparation steps:

[0105] A1. Add the base asphalt and oil into a preheated reactor for dispersion and stir for 40 minutes to obtain a base asphalt dispersion liquid;

[0106] A2. Adding a polymer modifier to the matrix asphalt dispersion liquid material for dispersion, so that the polymer modifier is evenly dispersed to obtain a polymer modifier dispersion material;

[0107] A3, adding rubber powder to the polymer modifier dispersion and stirring to make the rubber powder evenly dispersed, and heat-insulating and stirring for 3 hours to obtain a rubber powder dispersion;

[0108] A4. Add the second filler to the rubber powder dispersion and stir and disperse for 1 hour to obtain an asphalt coating composition.

[0109] Environmentally friendly water-based self-adhesive composition and preparation method thereof

[0110] 1321 emulsion was purchased from Celanese (Shanghai) International Trading Co., Ltd.

[0111] RS-300L emulsion was purchased from Badfu Group Co., Ltd.

[0112] Defoaming agent, brand: DF1668, purchased from Foshan Zhaojing Environmental Protection Technology Co., Ltd.

[0113] Wetting and dispersing agent, brand: Orotan TM 9830A, purchased from Guangzhou Kaiju New Materials Co., Ltd.

[0114] Thickener, hydroxyethyl cellulose (abbreviated as HEC), brand: B50K, purchased from Foshan Meiren Chemical Trading Co., Ltd.

[0115] Dispersant, brand name: W-58, purchased from Guangzhou Kefeng Chemical Co., Ltd.; chlorinated paraffin, 52#, purchased from Jiangxi Dongfang Julong Chemical Co., Ltd. C5 hydrogenated resin, brand name: C-115W, purchased from Yangzi Yinshiman Company.

[0116] The first filler, talcum powder, has an average particle size of 200-400 mesh, purchased from Hubei Pengyuan New Materials Co., Ltd.; ultrafine barium sulfate, has an average particle size of 0.9 μm-1.2 μm, purchased from Guizhou Nano Powder Industry Co., Ltd.

[0117] Examples 1-7

[0118] The components and dosage of the environmentally friendly water-based self-adhesive composition forming the environmentally friendly water-based self-adhesive layer in the waterproof membranes of Examples 1-7 and Comparative Examples 1-3 are shown in Table 1 below.

[0119] Table 1 Composition ratio of the environmentally friendly water-based self-adhesive composition in the waterproof membrane of Examples 1-7 and Comparative Examples 1-3

[0120]

[0121] The environmentally friendly water-based self-adhesive compositions of Examples 1-7 and Comparative Examples 1-3 were prepared according to the component proportions in Table 1 and the steps of the following method for preparing the environmentally friendly water-based self-adhesive compositions:

[0122] S1. Weigh the components of the environmentally friendly water-based self-adhesive composition as needed, add 1321 emulsion, RS-300L emulsion, chlorinated paraffin, and C5 hydrogenated resin into a reactor for dispersion treatment, and heat to 150° C. and stir for 10 minutes to obtain a first dispersion;

[0123] S2, adding the wetting dispersant to the first dispersion in sequence, stirring for 30 minutes after complete addition, to obtain a second dispersion;

[0124] S3, after the second dispersed material cools to room temperature, a thickener is added to the second dispersed material to obtain a third dispersed material;

[0125] S4, add the first filler, namely, superfine barium sulfate and talcum powder, to the third dispersed material, and stir for 15 minutes to ensure that the first filler is evenly dispersed, to obtain an environmentally friendly water-based self-adhesive composition, and transfer it to a ton barrel for standby use. For the case where the corresponding component is not contained in the comparative example, the corresponding treatment can be performed in the preparation step, but the non-containing component is not added.

[0126] Preparation method of waterproof membrane

[0127] The waterproof membranes of Examples 1-4 are prepared according to the following preparation steps:

[0128] B1. Apply the prepared asphalt coating composition on the opposite sides of the main substrate layer to form an asphalt coating layer, so that the sum of the thickness of the main substrate layer and the asphalt coating layer reaches 2.7 mm to 2.75 mm;

[0129] B2. A surface layer is coated on the side of one of the asphalt coating layers away from the main substrate layer. At this time, the temperature of the asphalt coating layer is 160° C. The environmentally friendly water-based self-adhesive composition of each of Examples 1 to 4 prepared by the components shown in Table 1 is evenly sprayed on the side of the other asphalt coating layer away from the main substrate layer by a spraying device. An environmentally friendly water-based self-adhesive layer is formed on the surface of the asphalt coating layer away from the main substrate layer. The thickness of the environmentally friendly water-based self-adhesive layer is 0.28 mm to 0.3 mm. At this time, the temperature of the waterproof membrane drops to 100° C.;

[0130] B3. After spraying the environmentally friendly water-based self-adhesive composition, enter the cooling and exhaust equipment to reduce the surface temperature of the waterproof membrane to about 50°C;

[0131] B4. Cover the environmentally friendly water-based self-adhesive layer with a PET aluminized film on the side away from the asphalt coating layer, and then complete the rolling work to obtain the waterproof membrane.

[0132] Performance Testing

[0133] According to the national standard GB 23441-2009 "Self-adhesive polymer modified asphalt waterproofing membrane", samples were prepared and the peel strength of the waterproofing membranes prepared in Examples 1-7 and Comparative Examples 1-3 on different base surfaces was tested, wherein the environmentally friendly water-based self-adhesive layer is an adhesive layer for adhering the waterproofing membrane to the corresponding base surface.

[0134] Table 2 Performance test results of waterproof membranes of Examples 1-7 and Comparative Examples 1-3

[0135]

[0136] By comparing Examples 1-4 and Comparative Examples 1-3, it can be concluded that Examples 1-4 contain waterproof rolls of environmentally friendly water-based self-adhesive compositions that meet the requirements of the embodiments of the present application, and their lap edge peeling strength, cement peeling strength, and aluminum plate peeling strength are significantly better than the waterproof rolls of environmentally friendly water-based compositions that do not meet the requirements of the present application in Comparative Examples 1-3, indicating that the waterproof rolls containing environmentally friendly water-based self-adhesive compositions that meet the requirements of the embodiments of the present application have good bonding properties and can firmly bond the waterproof rolls to different base surfaces. Among them, the amount of RS-300L emulsion in the environmentally friendly water-based self-adhesive composition of Comparative Example 1 is lower than the range specified in the present application, and its lap edge peeling strength, cement peeling strength, and aluminum plate peeling strength are significantly lower than the performance of the waterproof roll of Example 1. The 1321 emulsion in Comparative Example 2 is 0, and the amount of RS-300L emulsion is significantly increased to 52.5, which will cause the bonding performance of the environmentally friendly water-based self-adhesive composition to the waterproof membrane to decrease. The lap edge strength of the waterproof membrane is increased compared with Comparative Example 1, but the cement peeling strength is significantly reduced compared with Comparative Example 1, and the aluminum plate peeling strength is unchanged compared with Comparative Example 1. The amount of 1321 emulsion in Comparative Example 3 is significantly increased to 52.5, and the RS-300L emulsion is 0, then the lap edge strength of the waterproof membrane is increased compared with Comparative Example 1 and meets the standard requirements, but the cement peeling strength is increased compared with Comparative Example 1, but it still does not meet the standard requirements; the aluminum plate peeling strength is increased compared with Comparative Example 1, but it still does not meet the standard requirements. At the same time, it also shows that the combination of VAE emulsion and styrene-acrylic emulsion is required to make the environmentally friendly water-based self-adhesive composition have good lap edge peeling strength, cement peeling strength and aluminum plate peeling strength.

[0137] Comparing Example 1 with Example 5, it can be concluded that when the amount of 1321 emulsion in the environmentally friendly water-based self-adhesive composition increases, the lap edge strength of the waterproof coiled material, the peeling strength with cement and the peeling strength with aluminum plate are all enhanced. Comparing Example 1 with Example 6, it can be concluded that when the amount of RS-300L emulsion in the environmentally friendly water-based self-adhesive composition increases, the lap edge strength of the waterproof coiled material, the peeling strength with cement and the peeling strength with aluminum plate are all enhanced. The above results show that the environmentally friendly water-based self-adhesive composition defined in the embodiment of the present application can make the waterproof coiled material have good bonding properties. The performance test results of the above embodiments and comparative examples can prove that the environmentally friendly water-based self-adhesive composition of the present application can be perfectly fitted to the surface of the asphalt coating layer, and meet the performance index requirements of the waterproof coiled material, that is, the peeling strength reaches more than 1.5N / mm. Comparing Example 1, Example 6 and Example 7, when the amount of RS-300L emulsion in the environmentally friendly water-based self-adhesive composition is further increased, compared with the performance of the waterproof membrane in Example 1, the lap strength of the waterproof membrane in Example 7 is reduced, the peeling strength with cement is significantly reduced, and the peeling strength with the aluminum plate is slightly enhanced; the results show that as a styrene acrylic emulsion, the amount of RS-300L emulsion must be controlled within the range specified in this application so that the environmentally friendly water-based self-adhesive composition can have good performance in terms of lap strength, peeling strength with cement and peeling strength with aluminum plate.

[0138] The waterproofing membrane of the embodiment of the present application is environmentally friendly and economical to construct. The environmentally friendly water-based self-adhesive layer has high bonding strength with the base surface (such as a concrete base surface), and the surface layer and the asphalt coating layer, the environmentally friendly water-based self-adhesive layer and the base surface can all be firmly bonded. The waterproofing membrane has a super strong bonding ability and can form a firm bond with cement to improve the waterproofing quality. The waterproofing membrane does not delaminate at low temperatures (-26°C), thereby ensuring the waterproofing effect of the waterproofing membrane.

[0139] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. An environmentally friendly water-based self-adhesive composition, characterized in that: It includes the following components in parts by weight: VAE emulsion, 100 parts by weight; 90 to 180 parts by weight of styrene acrylic emulsion based on 100 parts by weight of VAE emulsion; 4 to 8 parts by weight of defoamer based on 100 parts by weight of VAE emulsion; 40 to 80 parts by weight of a wetting and dispersing agent based on 100 parts by weight of VAE emulsion; 1.2 to 2.5 parts by weight of thickener based on 100 parts by weight of VAE emulsion; 38 to 120.5 parts by weight of dispersant based on 100 parts by weight of VAE emulsion; The first filler is 50 to 90 parts by weight based on 100 parts by weight of the VAE emulsion.

2. The environmentally friendly water-based self-adhesive composition according to claim 1, characterized in that: Meet one or more of the following requirements: The VAE emulsion has a solid content of ≥50%, a viscosity of 100 mPa·s to 5000 mPa·s, and a pH value of 4.0 to 5.0; The styrene-acrylic emulsion has a solid content of 50% to 60%, a viscosity of 200 mPa·s to 2000 mPa·s, and a pH value of 7 to 9; The defoamer includes one or a combination of silicone defoamers, polyether defoamers, and phosphate defoamers; The wetting dispersant includes one or a combination of polyacrylic acid sodium salt liquid pigment dispersant, polycarboxylate dispersant, alkyl polyoxyethylene ether dispersant; The thickener includes one or a combination of butylated chlorinated paraffin, hydroxyethyl cellulose, hydroxypropyl starch, and propylene glycol alginate; The dispersant includes one or a combination of chlorinated paraffin, C5 hydrogenated resin, polycarboxylic acid sodium salt, sodium tripolyphosphate, modified phosphate polymer dispersant, and hydrophobically modified acrylic acid ammonium salt copolymer; The first filler includes one or a combination of talcum powder, barium sulfate, light calcium powder, heavy calcium powder, and fly ash.

3. The environmentally friendly water-based self-adhesive composition according to claim 2, characterized in that: Meet one or more of the following requirements: The VAE emulsion includes one or a combination of 1318 emulsion, 1319 emulsion, 1320 emulsion, 1321 emulsion, and 1350 emulsion; The styrene acrylic emulsion includes one or a combination of S-300A emulsion, RS-300L emulsion, and WT-300S; The defoaming agent includes one or a combination of DF1668, DF1306, etc.; The wet dispersion includes Qrotan TM 9830A, EH-6, EH-9, HSH X-407 or a combination of them; The thickener includes one or a combination of B50K, EXP-985, and TX98772; The dispersants include W-58, Disuper S18, Coadd TM One or a combination of D-26; The barium sulfate is ultrafine barium sulfate with an average particle size of 0.9 μm to 1.2 μm; The average particle size of the talc is 200-400 mesh; The average particle sizes of the light calcium powder, heavy calcium powder and fly ash are all between 800 meshes and 1200 meshes.

4. A method for preparing the environmentally friendly water-based self-adhesive composition according to any one of claims 1 to 3, characterized in that: The following steps are involved: Dispersing the VAE emulsion, styrene-acrylic emulsion, dispersant and defoamer, and heating to 50° C. to 180° C. to obtain a first dispersed material; adding a wetting and dispersing agent to the first dispersion to obtain a second dispersion; adding a thickener to the second dispersed material to obtain a third dispersed material; The first filler is added to the third dispersed material to obtain an environmentally friendly water-based self-adhesive composition.

5. Use of the environmentally friendly water-based self-adhesive composition according to any one of claims 1 to 3 in preparing a waterproof roll or in preparing an adhesive material.

6. A waterproof roll material, characterized in that: include: a main substrate layer (1), and Asphalt coating layers (2) are respectively covered on two opposite sides of the main substrate layer (1); A surface layer (3) covering one of the two asphalt coating layers (2) and facing away from the main substrate layer (1); The environmentally friendly water-based self-adhesive layer (4) is formed by coating an environmentally friendly water-based self-adhesive composition on the side of the other asphalt coating layer (2) facing away from the main substrate layer (1), and the environmentally friendly water-based self-adhesive composition is the environmentally friendly water-based self-adhesive composition according to any one of claims 1 to 3.

7. The waterproof coiled material according to claim 6, characterized in that: Meet one or more of the following requirements: The main substrate layer is one of polyester, glass fiber, and glass fiber reinforced polyester; The surface layer is a polyolefin film layer; The waterproof coiled material further comprises an isolation film (5), wherein the isolation film (5) is arranged on a side of the environmentally friendly water-based self-adhesive layer (4) facing away from the asphalt coating layer (2); The asphalt coating layer is formed by coating an asphalt coating composition, wherein the asphalt coating composition comprises the following components in parts by weight: Base asphalt, 100 parts by weight; 10 to 25 parts by weight of oil based on 100 parts by weight of base asphalt; 3 to 7.5 parts by weight of a polymer modifier based on 100 parts by weight of the base asphalt; 10 to 18 parts by weight of rubber powder based on 100 parts by weight of base asphalt; The second filler is 62.5 to 112.5 parts by weight based on 100 parts by weight of the base asphalt.

8. The waterproof coiled material according to claim 7, characterized in that: Meet one or more of the following requirements: The surface layer is one of a polyethylene layer, a polypropylene layer and an extruded composite layer of the two; The needle penetration of the matrix asphalt is 60 to 100, in units of 1 / 10 mm; The oil includes one or a combination of 61# base oil, naphthenic oil, R9, and aromatic oil; The polymer modifier is a butadiene styrene butadiene triblock copolymer with a molecular weight of 150,000 to 450,000 and a mass content of styrene segments of 20% to 30%; The rubber powder is a tire rubber powder of 60-80 mesh, wherein the mass content of rubber is 30%-50% and the mass content of ash is 10%-30%; The second filler comprises one or a combination of talcum powder, light calcium powder, heavy calcium powder, and fly ash; The isolation film is a PET aluminized film.

9. The waterproof coiled material according to claim 7, characterized in that: The preparation method of the asphalt coating material comprises: The base asphalt and the oil are heated and dispersed to obtain a base asphalt dispersion liquid material; Adding a polymer modifier to a matrix asphalt dispersion liquid material for dispersion to obtain a polymer modifier dispersion material; Adding rubber powder to the polymer modifier dispersion to perform dispersion and heat preservation treatment to obtain rubber powder dispersion; A second filler is added to the rubber powder dispersion for dispersion to obtain an asphalt coating material composition.

10. A method for preparing a waterproof coiled material according to any one of claims 6 to 9, characterized in that: include: Applying the asphalt coating composition on the opposite sides of the main substrate layer to form an asphalt coating layer; A surface layer is covered on the side of one of the asphalt coating layers away from the main substrate layer, and an environmentally friendly water-based self-adhesive composition is evenly coated on the side of the other asphalt coating layer away from the main substrate layer to form an environmentally friendly water-based self-adhesive layer on the surface of the asphalt coating layer to obtain a waterproof roll; or, The method for preparing the waterproof coiled material further comprises: covering an isolation film on a side of the environmentally friendly water-based self-adhesive layer away from the asphalt coating layer.

11. A waterproof roll material, characterized in that: include: Asphalt coating layer (2); A surface layer (3) is arranged on one side surface of the asphalt coating layer (2); The environmentally friendly water-based self-adhesive layer (4) is formed by coating an environmentally friendly water-based self-adhesive composition on the side of the asphalt coating layer (2) facing away from the surface layer (3), and the environmentally friendly water-based self-adhesive composition is the environmentally friendly water-based self-adhesive composition according to any one of claims 1 to 3.

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