Sealant used for aqueous acrylic acid ester emulsion coating and application method

Abstract

The invention relates to a sealant used for aqueous acrylic acid ester emulsion coating and an application method, the sealant is used for sealing the micropore of an acrylic acid ester film, and the anticorrosion performance of the coating can be enhanced. The aqueous sealant comprises an organic active component, a surfactant and water, the mass ratio of organic active component to surfactant to water is (10-40): (1-3): 100. The organic active component is diglycol (diglycol) or triglycol (triethylene glycol) or a mixture, and the surfactant is polyol ester or polyether or a mixture. A usage method is characterized in that the sealant is prepared by the above ratio, a spraying method or a dipping method is employed for uniformly coating the sealant on an acrylic acid ester moisture membrane surface, and fully filtered in a film aperture. The treated film is solidified for 1-5 hours at the temperature of 80-150 DEG C to obtain the acrylic acid ester coating with good sealing effect.

Description

technical field

[0001] The invention belongs to the field of coatings, and relates to a water-based sealing agent, in particular to a sealing agent for water-based acrylate emulsion coatings and an application method thereof. Background technique

[0002] Water-based acrylic emulsion coating refers to a type of water-based coating that uses acrylate resin as a film-forming substance. It has the outstanding advantages of high environmental protection, weather resistance, corrosion resistance, gloss retention, color retention, and convenient construction. It is widely used in construction, furniture, and home appliances. , automotive industry, etc. have a wide range of applications. However, during the curing process of acrylate resin, micropores will inevitably be formed in the coating, which will become the channel for water, oxygen or other chemical substances to corrode the substrate, reduce the anti-corrosion performance of the coating, and limit the water-based acrylate ...