Matte type high-staining-resistance coating varnish and preparation method thereof

Abstract

The invention relates to matte type high-staining-resistance coating varnish and a preparation method thereof. The matte type high-staining-resistance coating varnish comprises, by weight, 5-10 partsof butyl acrylate, 2-5 parts of styrene, 15-25 parts of methyl methacrylate, 2-5 parts of 2-ethylhexyl acrylate, 20-30 parts of emulsion, 10-30 parts of deionized water, 0.1-0.3 part of pH regulator,0.1-0.3 part of mildew preventive, 0.1-0.2 part of defoaming agent, 0.6-2 parts of coalescing agent, 0.8-1.5 parts of anti-freezing agent, 0.3-1 part of thickening agent, 8-12 parts of compound inorganic adhesive and 0.5-2.0 parts of nano staining-resisting agent. Compared with the prior art, the matte type high-staining-resistance coating varnish and the preparation method thereof have the advantages that the nano staining-resisting agent and the compound inorganic adhesive are added into traditional waterborne matte coating varnish using acrylate copolymer resin as the main component, and the staining resistance of the varnish is improved greatly by the synergistic effect of the nano staining-resisting agent and the compound inorganic adhesive.

Description

technical field

[0001] The invention relates to a finish varnish, in particular to a matte high stain-resistant finish varnish and a preparation method thereof. Background technique

[0002] In exterior wall architectural coatings, the proportion of water-based coatings is higher, and its formula and construction technology are becoming more and more mature. Water-based paint is generally divided into three parts: primer, intermediate coat and top coat. The top coat is also called overcoat varnish, which is covered on the middle coat to achieve the purpose of dust prevention and pollution prevention. Most of the existing top varnishes use emulsion as the main film-forming substance, and then add water and some functional additives to mix it. It has the advantages of waterproof and breathable, anti-yellowing and high durability. However, because the paint film is often not dense enough, it becomes There will be voids behind the film, and the voids will absorb pollutants thro...

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