Ultraviolet light solidifying powdery paints, producing method and applying method thereof

Abstract

Provided are an ultraviolet-curing powder coating and processes for manufacture and painting, which relate to a manufacturing technique of the powder coating and an operation method. Unsaturated polyester resin, photoinitiators and flatting agents are put into an extrusion machine to be melted and mixed, after being frozen and broken, the unsaturated polyester resin, the photoinitiators and flatting agents are cribrated and classified, finally being packed, wherein the unsaturated polyester resin is provided with (methyl) acrylic acid of double bonds. The ultraviolet-curing powder coating manufactured through the process resolves the problem of the products of the existing technique that the products are not high-temperature resistant and the powder-painting problem of thick substrates. The ultraviolet-curing powder coating increases the curing speed of the powder coating, the leveling property of paint film is good, and chemical resistance and other mechanical properties are also good. The ultraviolet-curing powder coating can be widely used in the painting of wood, plastic, paper, preassembled elements, truck evaporators and the like, in particular to thermosensitive base materials of medium density fiber board (MDF), plastic, paper, soldering elements, assembly parts of electronic components and the like.

Description

technical field [0001] The invention relates to a chemical product, in particular to a production process of a powder coating and a method for using the same. Background technique [0002] As a pollution-free, resource-saving, and high-production-efficiency paint variety, powder coatings have been valued by countries all over the world. Their output and variety have developed rapidly. The world's output has exceeded one million tons, and it has become an important variety of paint. one. However, one of the disadvantages of powder coatings is that the baking temperature is relatively high, generally at 180°C / 15-20min, which to a certain extent limits the application of traditional powder coatings on some substrates that are not resistant to high temperature and thick, such as wood, plastic, etc. , paper, pre-installed parts and automotive evaporators, etc. In addition, the leveling and hardness of ordinary powder coatings are average, which not only affects the uniformity an...

AI Technical Summary

Problems solved by technology

However, one of the disadvantages of powder coatings is that the baking temperature is relatively high, generally at 180°C / 15-20min, which to a certain extent limits the application of traditional powder coatings on some substrates that are not resistant to high temperature and thick, such as wood, plastic, etc. , paper, pre-installed parts and automotive evaporators, etc. In addition, the leveling and hardness of ordinary powder coatings are average, which not only affects the uniformity and wear resistance of the final product