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A kind of polymer emulsion waterproof coating and preparation method thereof

A technology for polymer emulsions and waterproof coatings, applied in antifouling/underwater coatings, radiation-absorbing coatings, coatings, etc., can solve the problem of separation of waterproof coating filling materials and film-forming materials, anti-fouling performance (poor self-cleaning property) , Low strength of mechanical properties, etc., to achieve the effect of improving stability and mechanical properties, strong UV resistance, and good compactness

Active Publication Date: 2019-01-25
KUNMING FENGXING WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polymer emulsion waterproof coating and a preparation method thereof, which mainly solves the problems of low mechanical property strength, poor weather resistance, poor anti-ultraviolet performance, and antifouling performance of the existing polymer emulsion waterproof coating ( Poor self-cleaning property, poor stability, long-term high-temperature environment storage and transportation are prone to precipitation problems, and the problem of separation of the existing waterproof coating filling material and film-forming material structure

Method used

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  • A kind of polymer emulsion waterproof coating and preparation method thereof
  • A kind of polymer emulsion waterproof coating and preparation method thereof
  • A kind of polymer emulsion waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 24 parts of polyvinyl acetate-ethylene copolymer emulsion, 31.5 parts of polyacrylate emulsion, 8 parts of water, 16.7 parts of white carbon black, 4.5 parts of plasticizer dioctyl phthalate, 0.2 parts of LX-7 dispersant into the reaction vessel 0.1 part of wetting agent polyethylene glycol, 1 part of antifreeze propylene glycol, 0.5 part of PB2706 defoamer, at room temperature (20-28 ℃), at the speed of 800-1500 rpm, stirring for 15 minutes, and then Add 7.5 parts of heavy calcium carbonate, 3 parts of titanium dioxide, and 3 parts of barium sulfate, and stir for 20 minutes under vacuum-0.1MPa conditions, then discharge and pack. Product performance test results are shown in Table 1:

[0022] Table 1-performance test results of Example 1 of the present invention

[0023] Test items

Embodiment 2

[0025] Add 20 parts of polyvinyl acetate-ethylene copolymer emulsion, 32 parts of polyacrylate emulsion, 9.5 parts of water, 20.5 parts of white carbon black, 4 parts of plasticizer dibutyl phthalate, 0.2 parts of dispersant (PS5000) in the reaction vessel 1 part, 0.1 part of wetting agent polyethylene glycol, 1 part of antifreeze propylene glycol, 1 part of defoamer (DP602), at room temperature (20-28 ℃), at the speed of 800-1500 rpm, stirring for 15 minutes, Then add 7 parts of heavy calcium carbonate, 2.35 parts each of titanium dioxide and barium sulfate, and stir for 20 minutes under the condition of vacuum -0.1MPa, then discharge and pack. Product performance test results are shown in Table 2:

[0026] Table 2-performance test results of Example 2 of the present invention

[0027] Test items

Embodiment 3

[0029] In the reaction vessel, add 16 parts of polyvinyl acetate-ethylene copolymer emulsion, 32 parts of polyacrylate emulsion, 9 parts of water, 22 parts of white carbon black, 4.5 parts of plasticizer chlorinated paraffin, 0.2 part of dispersant sodium hexametaphosphate, Wet agent polyethylene glycol 0.1 part, antifreeze agent propylene glycol 1 part, defoamer (DP628) 1 part, at room temperature (20-28 ℃), at the speed of 800-1500 rpm, stir for 15 minutes, then add 8.2 parts of heavy calcium carbonate, 3 parts of titanium dioxide and 3 parts of barium sulfate each, under the condition of vacuum -0.1MPa, stir for 20 minutes and then discharge and pack. Product performance test results are shown in Table 3:

[0030] Table 3-performance test result of embodiment 3 of the present invention

[0031] Test items

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Abstract

The invention discloses a polymer emulsion waterproof coating and a preparation method thereof. The waterproof coating is prepared from the following raw materials in percentage by mass: total 40%-70% of polyvinyl acetate-ethylene copolymerization emulsion and polyacrylate emulsion, 5%-10% of water, 15-35% of white carbon black, 5-10% of ground calcium carbonate, 5-10% of pigments and fillers, 1-10% of plasticizers, 0.1-0.5% of dispersants, 0.1-0.5% of wetting agents, 0.1-2% of anti-freezing agents and 0.1-2% of defoaming agents, wherein the sum of the percentages by mass of the raw materials is 100%. The invention also discloses the preparation method of the polymer emulsion waterproof coating. The polymer emulsion waterproof coating has excellent weather resistance, strong ultraviolet resistance, strong stain resistance, high stability and high mechanical performance and strength, is convenient for construction, is economical and environmentally friendly, has the function of resisting ultraviolet rays and water in an exposed environment in a plateau region, is specially designed for exterior walls and roofs, is capable of obviously improving the waterproof effect of an exposed surface under the complex climatic condition and prolonging the service life of the waterproof material, and is applicable to water resisting, leakage resisting and seepage resisting of exposed surfaces and non-exposed surfaces under various climatic conditions.

Description

technical field [0001] The invention relates to a waterproof coating and a preparation method thereof, in particular to a polymer emulsion waterproof coating and a preparation method thereof. Background technique [0002] Existing water-based waterproof coatings mainly contain polymer cement waterproof coatings (JS) and polymer emulsion waterproof coatings. Polymer cement waterproof coating is a two-component waterproof coating composed of a liquid material made of polyvinyl acetate-ethylene copolymer emulsion or polyacrylate emulsion and a powder material mainly made of cement and fillers. It is mainly suitable for Waterproof for non-exposed surfaces such as kitchens and bathrooms. Polymer emulsion waterproof coating is a one-component waterproof coating made of polyvinyl acetate-ethylene copolymer emulsion and polyacrylate emulsion, and calcium carbonate, wollastonite and other fillers. It is mainly suitable for balconies, kitchens, bathrooms, etc. Waterproof, convenient...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D131/04C09D5/16C09D5/32C09D7/61
CPCC08L2201/08C08L2205/03C09D5/1662C09D5/1687C09D5/32C09D133/04C08L31/04C08K13/02C08K3/36C08K2003/265
Inventor 刘文会邵杰
Owner KUNMING FENGXING WATERPROOF MATERIAL
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