Water-based two-component bright white finish preventing rash and preparation process thereof

Abstract

The invention discloses water-based two-component bright white finish preventing rash and a preparation process thereof, and relates to the technical field of chemical coating, overcoming a problem that overall application effects are poor because rash and pinholes are liable to generate during construction of water-based two-component paint. The white finish includes a main agent and a curing agent which are separately stored and which are mixed according to a mass ratio of (5-8):1 when in use, and is characterized in that the main agent includes, by weight, 50-60% of water-based hydroxy acrylic resin, 0.1-0.3% of a pH conditioner, 0.5-1% of a polymer defoamer, 5-10% of a film forming aid, 0.1-0.2% of an organosilicon defoamer, 0.05-0.15% of a wetting and leveling agent, 6-10% of deionized water, 0.1-0.3% of an associated type thickener, 20-30% of water-based white paste, 2.75-3.25% of wax emulsion, and 0.1-0.3% of a dispersant; and the curing agent includes, by weight, 65-75% of isophorone diisocyanate and 25-35% of hexamethylene diisocyanate. After construction of the white finish, rash and pinholes are not liable to generate and the overall application effect is good.

Description

technical field [0001] The invention relates to the technical field of chemical coatings, more specifically, it relates to a water-based two-component glossy white finish that resists prickly heat and a preparation process thereof. Background technique [0002] With the rapid development of my country's wood coatings industry, the output of wood coatings in China has exceeded 1.2 million tons in 2017, of which the output of water-based wood coatings is about 150,000 tons, which is still relatively low, and two-component bright water-based coatings are even rarer. And less. With the implementation of macro-control policies, in line with the pace of energy conservation and emission reduction, industrial transformation and upgrading, combined with the status quo of low degree of industrial automation and rising environmental pressure, water-based coatings have become an important way to promote the transformation and upgrading of enterprises, strengthen and expand the scale of e...

AI Technical Summary

Problems solved by technology

[0005] In view of the problem in the prior art that water-based two-component paints are prone to prickly heat and pinholes during construction, resulting in poor overall application effects, the first purpose of the present invention is to provide a water-based two-component paint that resists prickly heat Glossy white topcoat overcomes the defoaming under high thixotropy and reduces its surface tension so that it can be well wetted and spread to solve the above technical problems. It is not easy to produce prickly heat and pinholes after construction, and the overall has good application effect

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