UV-curable sanding primer

Abstract

The invention discloses UV-curable sanding primer which is characterized by comprising the following raw materials by weight: 60 to 65 percent of bisphenol A-type epoxy resin E-42, 2 to 3 percent of benzophenone, 20 to 30 percent of TPGDA, 10 to 15 percent of n-butanol, 2 to 3 percent of modified carborundum, 1 to 2 percent of nano SiO2, 0.5 to 0.8 percent of one or more antifoaming agents, and 0.4 to 0.6 percent of one or more dispersing agents. The UV-curable sanding primer has the advantages that as the volatility and the odor are low, the environmental pollution is low; the hardness is relatively high, the sanding property is excellent, the UV-curable sanding primer is easy to sand, and the filling capability reaches a certain extent; the curing speed is fast, and the production efficiency is high; being cured at ordinary temperature, the primer is suitable for various base materials; energy is saved, that is, the energy consumption is about 1/5 of that of the conventional coating; the performance indexes, of a coating made of the primer, in all aspects, such as wear resistance, acid and alkali resistance, salt spray resistance and gasoline resistance, of an organic solvent are all very high, and particularly, a paint film made of the primer is plump and outstanding in luster.

Description

technical field [0001] The invention relates to a paint, in particular to a UV light curing sanding primer. technical background [0002] Ultraviolet (UV) curing coating and its coating technology are new surface treatment technologies emerging in the 1980s. This type of coating uses ultraviolet radiation to trigger resin curing. Compared with existing thermosetting coatings, it has the advantages of fast curing, energy saving, room temperature curing, less pollution, and superior coating performance. It is a new generation of green chemical products. Compared with coatings cured by traditional processes, UV-cured coatings show better sanding properties, so UV-cured wear-resistant coatings have become one of the hotspots in the field of UVCC research. It can be used in building materials, sporting goods, electronic communications, optical devices, packaging materials, auto parts and other fields, and is a new material with broad application prospects. But for a long time, ...

AI Technical Summary

Problems solved by technology

However, for a long time, the technology and product market of this product have been monopolized by foreign companies, and its price has remained high. Therefore, it is impatient to develop domestic UV light-curing sanding primer.