A kind of high-adhesion water-based waterproof primer and its preparation method and application

Abstract

The invention discloses high-adhesion water-based waterproof primer as well as a preparation method thereof and application thereof. The high-adhesion water-based waterproof primer is prepared from the following components in parts by weight: 25-32 parts of composite emulsified polymer emulsion, 2.8-3.3 parts of coupling film-forming agent, 0.6-1 part of hydroxyethyl cellulose, 15-18 parts of titanium dioxide, 4-6 parts of barium sulfate, 4-6 parts of calcium carbonate, 4-6 parts of talcum powder, 1-2 parts of dispersing agent, 0.5-1 part of wetting leveling agent, 0.2-0.4 part of de-foaming agent, 0.2-0.3 part of preservative, 1.8-2.2 parts of anti-freezing agent, 0.1-0.3 part of rheological agent, 0.1-0.3 part of pH regulator, 0.4-0.8 part of thickening agent and 24-31 parts of water. The high-adhesion water-based primer has excellent film-forming property, hardness, flexibility, water resistance, chemical resistance, sealing property, seepage force and adhesion, can be effectively dissolved and permeated into an organic silicon mould release agent on novel material plates such as an art ware, a cement product, a glass magnesium board and a special cast sectional material, is inseamless engagement with the board, and achieves the practical effect of improving coating quality and field construction environment. Moreover, the preparation method is easy, is low in cost, is simple in construction way, and reduces production and construction cost.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, and particularly discloses a high-adhesion water-based waterproof primer and a preparation method and application thereof. Background technique [0002] The release agent is a functional substance between the mold and the finished product. Its ingredients are emulsified oil or vegetable oil. It has the characteristics of chemical resistance, heat resistance, high hardness and strong stress performance, and is not easy to be hydrolyzed or dissolved. , and are not easily decomposed or worn. Products made of molds on the market need to use a release agent for demoulding, such as handicrafts, cement products, glass magnesium boards, special pouring profiles and other new material plates. There is excess release agent remaining on the surface of the product, which makes the coating adhesion of the product poor or oil shrinkage and paint falling off during painting; at the same time, outd...

AI Technical Summary

Problems solved by technology

Products made of molds on the market need to use a release agent for demoulding, such as handicrafts, cement products, glass magnesium boards, special pouring profiles and other new material plates. There is excess release agent remaining on the surface of the product, which makes the coating adhesion of the product poor or oil shrinkage and paint falling off during painting; at the same time, outdoor products, such as flower beds, flower pots, chairs and stools, cement products, glass magnesium Flat plates, special pouring profiles for buildings, etc., require the surface of the product to have particularly good adhesion and waterproof performance, otherwise the surface of the product is easy to fall off, scratch, crack and even enter water, which will damage the appearance of the product and affect the appearance and protective effect

[0003] At present, most of the solvent-based epoxy or polyurethane coatings on the market are used to crack the release agent. Since it is a solvent-based coating, it contains a high content of volatile VOCs that are prohibited or limited by the state. In the process of processing, it is volatile, has peculiar smell, contains toxicity, pollutes the environment and other defects; under the social background of advocating "environmental protection, green, energy saving and health", water-based coatings have become the first choice of consumers. Low VOCs content, no toxic and harmful substances such as soluble heavy metals, healthy and environmentally friendly

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