PU matte white finish stable in gloss and permanently smooth and preparation method thereof

Abstract

The invention provides PU matte white finish stable in gloss and permanently smooth and a preparation method thereof. The PU matte white finish is prepared in the steps that white paste with the solid content being 60%, short oil alkyd resin, PE matting wax slurry, 6900-20X anti-sediment wax, anti-sediment slurry, wetting dispersant, a flatting agent, a defoaming agent, MIBK, vinyl chloride-vinyl acetate resin solution with the solid content being 20%, ED-30 matt powder, polytetrafluoroethylene wax powder and the like are prepared from a first component; a 1451 light trimer curing agent, a TDI additive product curing agent, an HDI trimer curing agent, MIBK, MEK and n-butyl acetate are prepared into a second component; methylbenzene, n-butyl acetate, acetic ether, MEK and propylene glycol methyl ether acetate are prepared into a third component; the first component, the second component and the third component are evenly mixed according to the proportion. Detection and trial prove that a paint film obtained after the PU matte white finish is sprayed is good in leveling property and high in sagging resistance, dazzled does not happen if the white finish is coated thin, the white finish can be kept permanently smooth, gloss is stable, and the PU matte white finish is suitable for coating of high-furniture and other wood products.

Description

Technical field [0001] The invention belongs to the wood coating manufacturing industry, and specifically relates to the research and development of a PU matte white topcoat with stable gloss and permanent smoothness. Background technique [0002] When ordinary PU matte white finish paint is sprayed, all paint technical practitioners know that the gloss paint film matting is mainly made of fumed silica, but due to the characteristics of fumed silica, it is affected by the construction process, drying time, Environmental temperature and humidity, anti-settling effect and other factors have great influence, especially in the production of low-gloss white topcoats, if the amount of fumed silica is large, the paint film is prone to uneven gloss, blooming and other paint film defects; use organic Silicon and wax powder are suspended on the surface of the paint film to provide a feel. The paint film is constantly rubbed on the furniture over time and in use. After the paint film is wor...

AI Technical Summary

Problems solved by technology

[0002] When spraying ordinary PU matt white topcoat, all paint technology practitioners know that fumed silica is mainly used for matting gloss paint film, but due to the characteristics of fumed silica, it is affected by construction technology, drying time, Environmental temperature and humidity, anti-settling effect and other factors are greatly affected, especially in the production of low-gloss white finish paint, if the amount of fumed silica is large, the paint film is prone to problems such as uneven gloss and blooming; organic Silicone and wax powder are suspended on the surface of the paint film to provide a touch. The paint film is rubbed on the furniture over time and during use. After the paint film is worn out, the silicone and wax powder give the film a silky touch. will disappear

As high-end furniture is more and more popular among consumers, the coating requirements are also increasing, and ordinary PU matte clear is far from meeting the high-end coating requirements.

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