Waterproof coating for toilets

Abstract

The invention discloses a waterproof coating for toilets. The waterproof coating is composed of a component A and a component B, the component A is prepared from the following components in parts by weight: 22 to 35 parts of epoxy liquid rubber, 3 to 6 parts of dispersing agent, 12 to 15 parts of coalescing agent, 2 to 3 parts of plasticizer, 8 to 15 parts of styrene-acrylic emulsion and 5 to 9 parts of curing accelerator; the component B is prepared from the following components in parts by weight: 15 to 28 parts of epoxy curing agent, 56 to 80 parts of cement, 2 to 3 parts of poly (N-isopropylacrylamide), 0.5 to 1.2 parts of polydimethylsiloxane and filler. The waterproof coating for the toilet has better surface drying time, hard drying time, tensile strength, bonding strength, watertightness, impermeability and the like, so that the waterproof coating for the toilet is more suitable for waterproof construction of the toilet.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof coatings, and in particular relates to waterproof coatings for toilets. Background Art

[0002] The bathroom is a space for users to perform activities such as defecation, bathing, and washing. Bathroom waterproofing technology is a key design requirement that aims to ensure that the surfaces of the bathroom walls, floors, and ceilings can effectively prevent water penetration and leakage. The main purpose of this technology is to protect the structure of the bathroom and nearby rooms from moisture damage while providing a dry, safe, and hygienic environment.

[0003] There are some common problems with bathroom waterproofing that require our attention during design and construction. First, inappropriate waterproofing layer thickness may lead to moisture penetration and leakage. If the waterproofing layer is too thin, moisture may penetrate the wall or floor and enter the room around the bathroom, causing structural damage and mold growth. Secondly, there may be defects in the joints and seams of the waterproofing layer, leading to moisture penetration. These seams need to be carefully treated and sealed to ensure that moisture cannot enter the interior of the wall or floor. In addition, bathroom waterproofing also needs to take into account long-term use and maintenance. The waterproofing layer should be durable and able to withstand the wear and tear during daily cleaning and use. Summary of the invention

[0004] The purpose of the invention is to provide a waterproof coating for toilets.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: a waterproof coating for bathroom, composed of component A and component B;

[0006] The component A comprises: 22 to 35 parts by weight of epoxy liquid rubber, 3 to 6 parts by weight of dispersant, 12 to 15 parts by weight of film-forming aid, 2 to 3 parts by weight of plasticizer, 8 to 15 parts by weight of styrene-acrylic emulsion, and 5 to 9 parts by weight of curing accelerator;

[0007] The B component comprises: 15-28 parts by weight of epoxy curing agent, 56-80 parts by weight of cement, 2-3 parts by weight of poly N-isopropylacrylamide, 0.5-1.2 parts by weight of polydimethylsiloxane, and 30-50 parts by weight of filler.

[0008] In the bathroom waterproof coating of the present invention as described above, preferably, the epoxy liquid rubber is one, a mixture of two or a mixture of three of liquid polyisoprene rubber, terminal epoxy liquid nitrile rubber and polyacrylate liquid rubber.

[0009] In the bathroom waterproof coating of the present invention as described above, preferably, the epoxy liquid rubber is an epoxy-terminated liquid nitrile rubber, and the number average molecular weight of the epoxy-terminated liquid nitrile rubber ranges from 1000 to 5000.

[0010] In the bathroom waterproof coating of the present invention as described above, preferably, the dispersant is at least one of an ammonium salt dispersant and a sodium salt dispersant; the film-forming aid is at least one of an ester compound and ethylene glycol propyl ether; and the plasticizer is dioctyl phthalate.

[0011] In the bathroom waterproof coating of the present invention as described above, preferably, the curing accelerator is at least one of 2,4,6-tris(dimethylaminomethyl)phenol or triethanolamine.

[0012] In the bathroom waterproof coating of the present invention as described above, preferably, the epoxy curing agent is at least one of polyether diamine, polyether triamine, low molecular weight polyamide 650 and low molecular weight polyamide 651.

[0013] In the bathroom waterproof coating of the present invention as described above, preferably, the component A further comprises 2 to 3 parts by weight of p-hydroxyacetophenone.

[0014] In the bathroom waterproof coating of the present invention as described above, preferably, the filler is at least one of light calcium carbonate, kaolin, bentonite and silica powder.

[0015] The bathroom waterproof coating of the present invention has better surface drying time, actual drying time, tensile strength, bonding strength, water impermeability, impermeability and other properties, and is therefore more suitable for bathroom waterproof construction. DETAILED DESCRIPTION

[0016] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0017] In the embodiment of the present invention, the sources of raw materials are as follows:

[0018] Epoxy liquid rubber and polyisoprene rubber were purchased from Shanghai Gongcheng Polymer New Material Technology Co., Ltd.; epoxy liquid nitrile rubber was purchased from Dongguan Xinrui New Materials Co., Ltd. (number average molecular weight range 1000-5000); polyacrylate liquid rubber was purchased from Shanghai Gongcheng Polymer New Material Technology Co., Ltd.

[0019] Dispersant: ammonium salt dispersant is Nopco SN-DispersantSN-5027 purchased from Guangzhou Yachuangxin Materials Co., Ltd., and sodium salt dispersant is sodium salt type dispersant SN-5040 purchased from Beijing Qifei Technology Development Co., Ltd.;

[0020] The film-forming aid, ester compound is propylene glycol diacetate purchased from Suzhou Zixu New Materials Co., Ltd.; ethylene glycol propyl ether, purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., purity: 99.4wt%.

[0021] Plasticizer, dioctyl phthalate, was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., purity: 98.0wt%; styrene acrylic emulsion was purchased from Rongdong Chemical Co., Ltd.; p-hydroxyacetophenone was purchased from Shenzhen Haisian Biotechnology Co., Ltd.

[0022] The curing accelerator, 2,4,6-tris(dimethylaminomethyl)phenol was purchased from Guangzhou Yuanda New Materials Co., Ltd., with a purity of 95.0 wt %; triethanolamine was purchased from Jinan Jinhao Chemical Co., Ltd., with a purity of 95.0 wt %.

[0023] Epoxy curing agent, polyether diamine was purchased from Foshan Shengchuangda Chemical Co., Ltd. (produced by Huntsman Corporation of the United States); polyether triamine was purchased from Foshan Shengchuangda Chemical Co., Ltd. (produced by Huntsman Corporation of the United States); low molecular weight polyamide 650 was purchased from Guangzhou Yihuisheng Chemical Co., Ltd.; low molecular weight polyamide 651 was purchased from Guangzhou Yihuisheng Chemical Co., Ltd.

[0024] Poly (N-isopropylacrylamide) was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd.; polydimethylsiloxane was purchased from Shanghai Jizhi Biochemical Technology Co., Ltd., with an average weight average molecular weight of 115,000.

[0025] Filler, calcium carbonate Anhao Industrial (Shanghai) Co., Ltd., purity: 990%; kaolin Hubei Yongkuo Technology Co., Ltd., purity: 99.0%; bentonite Hubei Qifei Pharmaceutical Chemical Co., Ltd., purity: 99.5%; silicon micropowder Hubei Qifei Pharmaceutical Chemical Co., Ltd., purity: 99.5%.

[0026] Embodiment 1, a waterproof coating for bathroom, comprising component A and component B;

[0027] The component A comprises: 22 parts by weight of epoxy liquid rubber, 3 parts by weight of dispersant, 12 parts by weight of film-forming aid, 3 parts by weight of plasticizer, 8 parts by weight of styrene-acrylic emulsion, and 5 parts by weight of curing accelerator; the component B comprises: 15 parts by weight of epoxy curing agent, 56 parts by weight of cement, 2 parts by weight of poly (N-isopropylacrylamide), 0.5 parts by weight of polydimethylsiloxane, and 30 parts by weight of filler.

[0028] The epoxy liquid rubber is liquid polyisoprene rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is an ester compound; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is a polyether diamine; and the filler is light calcium carbonate.

[0029] Embodiment 2, a waterproof coating for bathroom, comprising component A and component B;

[0030] The component A comprises: 35 parts by weight of epoxy liquid rubber, 4 parts by weight of dispersant, 15 parts by weight of film-forming aid, 2 parts by weight of plasticizer, 15 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 28 parts by weight of epoxy curing agent, 80 parts by weight of cement, 3 parts by weight of poly (N-isopropylacrylamide), 0.7 parts by weight of polydimethylsiloxane, and 50 parts by weight of filler.

[0031] The epoxy liquid rubber is an epoxy-terminated liquid nitrile rubber; the dispersant is a sodium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is triethanolamine; the epoxy curing agent is a polyether triamine; and the filler is kaolin.

[0032] Embodiment 3, a waterproof coating for bathroom, comprising component A and component B;

[0033] The component A comprises: 28 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 13 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 8 parts by weight of curing accelerator; the component B comprises: 20 parts by weight of epoxy curing agent, 60 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 35 parts by weight of filler.

[0034] The epoxy liquid rubber is polyacrylate liquid rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is an ester compound; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 650; and the filler is bentonite.

[0035] Embodiment 4, a waterproof coating for bathroom, comprising component A and component B;

[0036] The component A comprises: 30 parts by weight of epoxy liquid rubber, 6 parts by weight of dispersant, 14 parts by weight of film-forming aid, 3 parts by weight of plasticizer, 10 parts by weight of styrene acrylic emulsion, and 9 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 62 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.2 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0037] The epoxy liquid rubber is an epoxy-terminated liquid nitrile rubber; the dispersant is a sodium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is triethanolamine; the epoxy curing agent is a low molecular weight polyamide 651; and the filler is silicon micropowder.

[0038] Embodiment 5, a waterproof coating for bathroom, composed of component A and component B;

[0039] The component A comprises: 29 parts by weight of epoxy liquid rubber, 4.5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2 parts by weight of plasticizer, 11 parts by weight of styrene acrylic emulsion, and 7 parts by weight of curing accelerator; the component B comprises: 8 parts by weight of epoxy curing agent, 70 parts by weight of cement, 2 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0040] The epoxy liquid rubber is a mixture of liquid polyisoprene rubber, terminal epoxy liquid nitrile rubber, etc. in a weight ratio; the dispersant is a mixture of ammonium salt dispersant and sodium salt dispersant in a weight ratio of 1:3; the film-forming aid is a mixture of ester compounds and ethylene glycol propyl ether in a weight ratio of 2:3; the plasticizer is dioctyl phthalate; the curing accelerator is a mixture of 2,4,6-tris(dimethylaminomethyl)phenol and triethanolamine in a weight ratio of 5:2; the epoxy curing agent is a mixture of polyether diamine and polyether triamine in a weight ratio of etc.; the filler is a mixture of light calcium carbonate and kaolin in a weight ratio of 5:1.

[0041] Embodiment 6, a waterproof coating for bathroom, comprising component A and component B;

[0042] The component A comprises: 32 parts by weight of epoxy liquid rubber, 55.5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 3 parts by weight of plasticizer, 12 parts by weight of styrene acrylic emulsion, and 8 parts by weight of curing accelerator; the component B comprises: 24 parts by weight of epoxy curing agent, 73 parts by weight of cement, 3 parts by weight of poly (N-isopropylacrylamide), 0.5 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0043] The epoxy liquid rubber is a mixture of epoxy-terminated liquid nitrile rubber and polyacrylate liquid rubber in a weight ratio of 1:2; the dispersant is an ammonium salt dispersant; the film-forming aid is an ester compound; the plasticizer is dioctyl phthalate; the curing accelerator is a mixture of 2,4,6-tris(dimethylaminomethyl)phenol and triethanolamine in a weight ratio of 1:3; the epoxy curing agent is a mixture of polyether triamine and low molecular weight polyamide 650 in a weight ratio of 1:3; and the filler is a mixture of bentonite and silica powder in a weight ratio of 5:3.

[0044] Embodiment 7, a waterproof coating for bathroom, comprising component A and component B;

[0045] The component A comprises: 29 parts by weight of epoxy liquid rubber, 4.5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2 parts by weight of plasticizer, 13 parts by weight of styrene acrylic emulsion, and 9 parts by weight of curing accelerator; the component B comprises: 18 parts by weight of epoxy curing agent, 75 parts by weight of cement, 3 parts by weight of poly (N-isopropylacrylamide), 0.5-1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0046] The epoxy liquid rubber is a mixture of liquid polyisoprene rubber, terminal epoxy liquid nitrile rubber and polyacrylate liquid rubber in a weight ratio; the dispersant is a sodium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is a mixture of 2,4,6-tris(dimethylaminomethyl)phenol and triethanolamine in a weight ratio; the epoxy curing agent is a mixture of polyether diamine and low molecular weight polyamide 651 in a weight ratio of 2.5:3; the filler is a mixture of kaolin and silica powder in a weight ratio.

[0047] Embodiment 8, a waterproof coating for bathroom, composed of component A and component B;

[0048] The component A comprises: 32 parts by weight of epoxy liquid rubber, 5.5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 3 parts by weight of plasticizer, 14 parts by weight of styrene acrylic emulsion, and 8 parts by weight of curing accelerator; the component B comprises: 24 parts by weight of epoxy curing agent, 80 parts by weight of cement, 2 parts by weight of poly (N-isopropylacrylamide), 0.5 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0049] The epoxy liquid rubber is a mixture of liquid polyisoprene rubber, terminal epoxy liquid nitrile rubber and polyacrylate liquid rubber in a weight ratio of 5:3:1.2; the dispersant is a sodium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is a mixture of 2,4,6-tris(dimethylaminomethyl)phenol and triethanolamine in a weight ratio; the epoxy curing agent is a mixture of polyether diamine and low molecular weight polyamide 651 in a weight ratio; the filler is a mixture of light calcium carbonate, kaolin, bentonite and silica powder glue in a weight ratio of 3:2:3:6.

[0050] Embodiment 9, a waterproof coating for bathroom, comprising component A and component B;

[0051] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0052] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0053] Embodiment 10, a waterproof coating for bathroom, comprising component A and component B;

[0054] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly N-isopropylacrylamide, 1.0 parts by weight of polydimethylsiloxane, 2 parts by weight of p-hydroxyacetophenone, and 40 parts by weight of filler.

[0055] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0056] Embodiment 11, a waterproof coating for bathroom, comprising component A and component B;

[0057] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly N-isopropylacrylamide, 1.0 parts by weight of polydimethylsiloxane, 3 parts by weight of p-hydroxyacetophenone, and 40 parts by weight of filler.

[0058] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0059] Embodiment 12, a waterproof coating for bathroom, comprising component A and component B;

[0060] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene-acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly-N-isopropylacrylamide, 1.0 parts by weight of polydimethylsiloxane, 3.2 parts by weight of p-hydroxyacetophenone, and 40 parts by weight of filler.

[0061] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0062] Embodiment 13, a waterproof coating for bathroom, comprising component A and component B;

[0063] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly N-isopropylacrylamide, 1.0 parts by weight of polydimethylsiloxane, 3.5 parts by weight of p-hydroxyacetophenone, and 40 parts by weight of filler.

[0064] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0065] Embodiment 14, a waterproof coating for bathroom, comprising component A and component B;

[0066] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly N-isopropylacrylamide, 1.0 parts by weight of polydimethylsiloxane, 4.0 parts by weight of p-hydroxyacetophenone, and 40 parts by weight of filler.

[0067] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0068] Embodiment 15, a waterproof coating for bathroom, comprising component A and component B;

[0069] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 7.9 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0070] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0071] Embodiment 16, a waterproof coating for bathroom, comprising component A and component B;

[0072] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 7.8 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0073] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0074] Embodiment 17, a waterproof coating for bathroom, comprising component A and component B;

[0075] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 7.5 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0076] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0077] Embodiment 18, a waterproof coating for bathroom, comprising component A and component B;

[0078] The component A comprises: 30 parts by weight of epoxy liquid rubber, 5 parts by weight of dispersant, 14 parts by weight of film-forming aid, 2.5 parts by weight of plasticizer, 7.0 parts by weight of styrene acrylic emulsion, and 6 parts by weight of curing accelerator; the component B comprises: 25 parts by weight of epoxy curing agent, 72 parts by weight of cement, 2.5 parts by weight of poly (N-isopropylacrylamide), 1.0 parts by weight of polydimethylsiloxane, and 40 parts by weight of filler.

[0079] The epoxy liquid rubber is terminal epoxy liquid nitrile rubber; the dispersant is an ammonium salt dispersant; the film-forming aid is ethylene glycol propyl ether; the plasticizer is dioctyl phthalate; the curing accelerator is 2,4,6-tris(dimethylaminomethyl)phenol; the epoxy curing agent is low molecular weight polyamide 651; the filler is a mixture of light calcium carbonate, kaolin, bentonite, and silica powder glue in a weight ratio of 3:2:3:6.

[0080] Performance test: The bathroom waterproof coating prepared in the above embodiment was subjected to performance test using the following method. The test results are shown in Table 1.

[0081] 1. Surface drying time test: Test according to Chapter 16 of GB / T16777-2008. Wet film thickness is 0.5mm±0.1mm. For test pieces with components seeping out from the surface, the actual drying time is used as the test result of the surface drying time. If the surface drying time does not exceed 2h, it is accurate to 0.5h; if the surface drying time is greater than 2h, it is accurate to 1h.

[0082] 2. Drying time test: Test according to Chapter 16 of GB / T16777-2008. Wet film thickness is 0.5mm±0.1mm. If the drying time does not exceed 2h, it is accurate to 0.5h; if the drying time is greater than 2h, it is accurate to 1h.

[0083] 3. Tensile strength: According to the provisions of 9.2.1 of GB / T 16777-2008 "Test methods for building waterproof coatings", the tensile speed is 200mm / min, and the tensile strength of the test sample is tested;

[0084] 4. Bond strength: According to the provisions of GB / T16777-2008 "Test methods for building waterproof coatings", a tensile test machine is used to conduct a tensile test at a tensile speed of (5±1) mm / min to measure the bond strength of the sample;

[0085] 5. Waterproofness: Test according to the provisions of Chapter 15 of GB / T16777-2008 "Test Methods for Building Waterproof Coatings", test pressure 0.3MPa, maintain pressure for 30±2min;

[0086] 6. Impermeability: Test the impermeability of the sample in accordance with the provisions of Appendix A Impermeability Test Method in GB / T23445-2009 "Polymer Cement Coatings";

[0087] Table 1

[0088]

[0089]

[0090] According to the data in Table 1 of the present invention, the bathroom waterproof coating of the present invention has better surface drying time, actual drying time, tensile strength, bonding strength, water impermeability, anti-seepage and other properties, and is therefore more suitable for bathroom waterproof construction.

[0091] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A waterproof coating for bathroom, consisting of component A and component B; characterized in that: The component A comprises: 22 to 35 parts by weight of epoxy liquid rubber, 3 to 6 parts by weight of dispersant, 12 to 15 parts by weight of film-forming aid, 2 to 3 parts by weight of plasticizer, 8 to 15 parts by weight of styrene-acrylic emulsion, and 5 to 9 parts by weight of curing accelerator; The B component comprises: 15-28 parts by weight of epoxy curing agent, 56-80 parts by weight of cement, 2-3 parts by weight of poly N-isopropylacrylamide, 0.5-1.2 parts by weight of polydimethylsiloxane, and 30-50 parts by weight of filler.

2. The waterproof coating for bathroom according to claim 1, characterized in that: The epoxy liquid rubber is one, a mixture of two or a mixture of three of liquid polyisoprene rubber, terminal epoxy liquid nitrile rubber and polyacrylate liquid rubber.

3. The waterproof coating for bathroom according to claim 1, characterized in that: The epoxy liquid rubber is an epoxy-terminated liquid nitrile rubber, and the number average molecular weight of the epoxy-terminated liquid nitrile rubber ranges from 1000 to 5000.

4. The waterproof coating for bathroom according to claim 1, characterized in that: The dispersant is at least one of an ammonium salt dispersant and a sodium salt dispersant; the film-forming aid is at least one of an ester compound and ethylene glycol propyl ether; and the plasticizer is dioctyl phthalate.

5. The waterproof coating for bathroom according to claim 1, characterized in that: The curing accelerator is at least one of 2,4,6-tris(dimethylaminomethyl)phenol or triethanolamine.

6. The waterproof coating for bathroom according to claim 1, characterized in that: The epoxy curing agent is at least one of polyether diamine, polyether triamine, low molecular weight polyamide 650 and low molecular weight polyamide 651.

7. The waterproof coating for bathroom according to claim 1, characterized in that: The component A further comprises 2 to 3 parts by weight of p-hydroxyacetophenone.

8. The waterproof coating for bathroom according to claim 1, characterized in that: The filler is at least one of light calcium carbonate, kaolin, bentonite and silica powder.

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