Semitransparent Thai teak color raw umber air purification type polyurethane wood paint and preparation method thereof

Abstract

The invention relates to a semitransparent Thai teak color raw umber air purification type polyurethane wood paint and a preparation method thereof. The polyurethane wood paint is composed of a component A and a component B in a weight ratio of 1:0.5. The component A consists of air purification type alkyd resin, matting powder, a dispersant, a Thai teak color paste, a leveling agent, a defoaming agent, an anti-settling agent, and a solvent. The component B is a benzene-free curing agent based on TDI, HDI trimer or adduct. The semitransparent Thai teak color raw umber air purification type polyurethane wood paint prepared by the invention does not contain aromatic hydrocarbon, aldehyde ketone or heavy metal, can reach the air purification effect after coating into a film, and during storage, has the characteristics of no precipitate, good leveling property, good hand feel, high scratch resistance, and no ghosting. After coating a wooden ware with the paint, the wood grains are clear and thorough, so that the furniture looks elegant and noble, plain and natural, gives people graceful and comfortable feel, and adapts to modern aesthetic view, thus being very popular with the market and customers. The semitransparent Thai teak color raw umber air purification type polyurethane wood paint provided by the invention is widely used for surface decoration and protection of wooden wares, metals, plastics and the like.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood varnish, in particular to a translucent Thai teak-colored raw amba clean-odor type anti-scratch two-component polyurethane wood finish. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which has led to the rapid growth of domestic wood coatings. In the furniture coating market, American-style painted furniture occupies a relatively large market share. Most of the domestic furniture industry uses color essence (a metal complex dye, such dyes have serious problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, Poor light fastness and migration resistance, commonly known as Grace) for wood grain wiping and varnishing colorants, most of the resins used for wiping are ordinary alkyd res...

AI Technical Summary

Problems solved by technology

In the furniture coating market, American-style painted furniture occupies a relatively large market share. Most of the domestic furniture industry uses color essence (a metal complex dye, such dyes have serious problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, Poor light fastness and migration resistance, commonly known as Grace) for wood grain wiping and varnishing colorants, most of the resins used for wiping are ordinary alkyd resins and linseed oils, and the furniture still remains for a long time after painting. Odor; today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers, but there are many shortcomings in the product, such as whitening and blistering , delamination, non-scratch resistance, ghosting, fingerprints are not easy to disappear, etc.