Modified polyurethane acrylic ester and ultraviolet light curing coating

Abstract

The invention provides a compound with the structure shown in the formula (I), wherein R1 is an acrylic ester group; R2 is an isophorone group, hexyl, methyl cyclohexyl, dicyclohexyl methyl, or tolyl; R3 is a tertiary amine group; m and n are the degrees of polymerization; m is not less than 2 and not larger than 20; and n is not less than 1 and not larger than 12. The invention also provides an ultraviolet light curing coating comprising the following components of 60 to 80 parts by weight of modified polyurethane acrylic ester with the structure of the formula (I): 10 to 18 parts by weight of water, 0.3 to 0.9 part by weight of aqueous flatting agent, 5 to 9 parts by weight of aqueous cosolvent, 2 to 6 parts by weight of aqueous wax auxiliary, 1.3 to 3 parts by weight of aqueous wettingagent, 0.5 to 0.7 part by weight of aqueous antifoaming agent and 3 to 5 parts by weight of photo initiator. The ultraviolet light curing coating of the invention has the advantages of excellent fingerprint resistance property, corrosion resistance property and weatherability, and rapid curing.

Description

technical field The invention relates to the technical field of coatings, in particular to a modified polyurethane acrylate and an ultraviolet light curing coating. Background technique The anti-fingerprint research originated in Japan. The original purpose was to meet the needs of the home appliance field, because in the production process of home appliances, many parts need to be touched by workers many times. With the development of society, fingerprint resistance is not only an important indicator of the home appliance industry, but also an important indicator of the automobile and office supplies industries. The anti-fingerprint of home appliances, automobiles or office supplies is generally achieved by coating the surface with anti-fingerprint coatings. At present, most widely used anti-fingerprint coatings are single-component water-based coatings. For example, the Chinese patent application number 94112200. , polyacrylate coating of paraffin hydrate and antifungal...

AI Technical Summary

Problems solved by technology

However, when the coating is applied, component A and component B need to be stirred and mixed first, and it needs to be cured after low-temperature baking after coating on the metal sheet. It takes a long time for complete curing, which cannot meet the requirements of fast assembly line coating. need