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Novel waterproof coating material and preparation method thereof

A waterproof coating, a new type of technology, applied in the direction of coating, etc., can solve the problems of soft application performance and poor pollution resistance, and achieve the effects of good foaming resistance, improved coating performance, and good acid and alkali resistance

Inactive Publication Date: 2019-06-04
任卫国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many kinds of polymer cement-based waterproof coatings on the market, which can achieve good waterproof effect, but they are all coatings made of single polymer emulsion, which inevitably have certain defects, such as EVA Coatings with soft spreading properties and poor stain resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A novel waterproof coating comprises the following components in parts by weight:

[0040] 30 parts of polyvinyl acetate;

[0041] 15 parts of liquid ethylene;

[0042] 10 parts of dibutyl maleate;

[0043] 10 parts of polyvinyl alcohol;

[0044] 6 parts of filler;

[0045] 4 parts curing agent;

[0046] 3 parts of film-forming aid;

[0047] 1 part of defoamer;

[0048] 40 parts of distilled water.

[0049] In this embodiment, the filler is a mixture of kaolin and sericite powder. Both kaolin and sericite cloud powder are flakes, and their suspension is good. Kaolin has the characteristics of improving dry hiding power and good suspension. Sericite cloud powder has the characteristics of improving weather resistance, water resistance, crack resistance, and delayed pulverization. characteristics; and compared with other commonly used fillers, they have no obvious defects, which can ensure the optimization of coating quality.

[0050] In this embodiment, the curi...

Embodiment 2

[0060] The difference between this embodiment and embodiment 1 is that

[0061] A novel waterproof coating comprises the following components in parts by weight:

[0062] 35 parts of polyvinyl acetate;

[0063] 25 parts of liquid ethylene;

[0064] 15 parts of dibutyl horse hydrolate;

[0065] 15 parts of polyvinyl alcohol;

[0066] 9 parts of stuffing;

[0067] 6 parts of curing agent;

[0068] 4.5 parts of film-forming aids;

[0069] 1.5 parts of defoamer;

[0070] 45 parts of distilled water;

[0071] In this embodiment, carbon fibers are also added to the filler. Carbon fiber can enhance the resistance of the paint, and harden the film performance of the paint to a certain extent, further alleviating the problem of soft film performance of the EVA paint.

[0072] Others are the same as embodiment 1.

Embodiment 3

[0074] The difference between this embodiment and embodiment 1 is that

[0075] A novel waterproof coating comprises the following components in parts by weight:

[0076] 40 parts of polyvinyl acetate;

[0077] 35 parts of liquid ethylene;

[0078] 20 parts of dibutyl maleate;

[0079] 20 parts of polyvinyl alcohol;

[0080] 12 parts of filler;

[0081] 8 parts of curing agent;

[0082] 6 parts of film-forming aids;

[0083] 2 parts of defoamer;

[0084] 50 parts of distilled water;

[0085] In this embodiment, the composition of the paint also contains nano-TiO2 photocatalyst. Nano-TiO2 photocatalyst can purify air and degrade organic matter; at the same time, nano-TiO2 is also a kind of photocatalytic inorganic antibacterial agent, which has good antibacterial effect.

[0086] Others are the same as embodiment 1.

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Abstract

The invention discloses a novel waterproof coating material and a preparation method thereof, and belongs to the field of coating materials, wherein the novel waterproof coating material comprises, byweight, 30-40 parts of polyvinyl acetate, 15-35 parts of liquid-state ethylene, 10-20 parts of dibutyl maleate, 10-20 parts of polyvinyl alcohol, 6-12 parts of a filler, 4-8 parts of a curing agent,3-6 parts of a film forming aid, 1-2 parts of an antifoaming agent, and 40-50 parts of distilled water. The preparation method comprises: material preparing, a main copolymerization reaction, an auxiliary copolymerization reaction, adhesive solution preparation, mixing and other steps. According to the present invention, the components are polymerized to form the emulsion copolymer with advantagesof good flexibility, acid resistance, alkali resistance, film forming property and the like so as to generate the coating material with advantages of good hydrolysis resistance, good water resistanceand good weather resistance, such that the good waterproof performance can be achieved; by adding the corresponding polymer monomers and the auxiliary agent, the disadvantages of the coating materialcan be alleviated, such that the waterproof coating material has comprehensive performance; and the coating material further has the improved adhesion, and the stability of the coating material can be ensured.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a waterproof coating with better performance and a preparation method thereof. Background technique [0002] There are two types of waterproof coatings on the market: one is polyurethane waterproof coatings. Such materials are generally made of polyurethane and coal tar as raw materials. The tar gas it volatilizes is highly toxic and not easy to remove, so it was banned in China in 2000. The polyurethane waterproof coating that is still on sale uses asphalt instead of coal tar as a raw material. However, when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; the other type is polymer cement-based waterproof coating. It is composed of a variety of water-based polymer emulsions and high-quality cement mixed with various additives. The flexibility of the polymer (resin) and the rigidity of the cement are int...

Claims

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Application Information

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IPC IPC(8): C09D151/00C09D131/04C09D129/04C09D7/61C09D7/63C09D7/65C08F263/04C08F210/02C08F222/14C08F218/08
Inventor 任卫国
Owner 任卫国