A kind of preparation method of photocurable polyurethane modified wood paint

Abstract

The invention provides a preparation method of light-curing polyurethane modified carpentry paint. The light-curing polyurethane modified carpentry paint prepared according to the method solves the problems that common polyurethane carpentry paint is not environment-friendly due to long volatilization cycle, and consecutive operation can not be conducted when the common polyurethane carpentry paint is painted on abnormal-shaped parts. The light-curing polyurethane modified carpentry paint is high in priming paint solid content and thick in paint coating film, and effectively reduces painting times, and can be instantly solidified after painted for multi-layers and irradiated by light. A workpiece leaving after painted can enter next procedure instantly, and therefore consecutive operation is realized, and construction efficiency is remarkably improved, and high environment protection performance is achieved. The light-curing polyurethane modified carpentry paint is good in scratch resistance due to the fact that adhering density is larger than that of polyurethane paint when finish paint is solidified.

Description

technical field [0001] The invention relates to a preparation method of wood lacquer for furniture, in particular to a preparation method of photocurable modified polyurethane wood varnish. Background technique [0002] At present, the types of paints commonly used by furniture manufacturers at home and abroad include: nitro wood paint, acid-cured wood paint, unsaturated resin wood paint, polyurethane wood paint, light-cured wood paint, and water-based wood paint. Among them, polyurethane wood lacquer and nitro wood lacquer are currently widely used, accounting for more than 80% of the total market. In terms of performance, polyurethane wood paint has a full film and relatively high hardness, but the solvent volatilization is insufficient after the paint film is cured, resulting in a long volatilization cycle of volatile matter, which has a certain impact on the living environment; although nitro wood paint has a relatively fast solvent volatilization rate Fast, but the pai...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the volatile matter of the existing polyurethane wood lacquer has a long volatilization cycle, and the problem that the photocuring spray wood lacquer primer cannot be continuously operated when spraying special-shaped parts is provided, and a method for preparing a photocurable modified polyurethane wood lacquer is provided.