Aqueous ultraviolet cured paint

Abstract

The invention relates to an aqueous ultraviolet light curing paint which consists of the following compositions in weight percentage: 25.0 to 60.0 percent of acrylate active oligomer, 1.0 to 10.0 percent of active oligomer with emulsification, 0 to 15.0 percent of latent solvent, 0.5 to 6.0 percent of light evocating agent, 0.1 to 2.0 percent of additive and 12.0 to 68.4 percent of water. The active oligomer with emulsification is an acrylate aqueous copolymer with 5,000 to 50,000 molecular weights; and at least two compounds containing olefinic unsaturated double bond and an evocating agent are used as initial materials, are subjected to copolymerization twice, are neutralized through a neutralizing agent to prepare the aqueous ultraviolet light curing paint. The active oligomer with emulsification in proper amount can emulsify a non-aqueous active oligomer, thereby realizing water solubility of the ultraviolet light curing paint; and the film coating performance of the aqueous ultraviolet light curing paint is basically equivalent to that of the non-aqueous ultraviolet light curing paint.

Description

Waterborne UV Curable Coating Technical field The invention relates to a water-based ultraviolet curing paint. Background technique UV-curable coatings are environmentally friendly and energy-saving. Therefore, they have received extensive attention worldwide and their dosage has also increased rapidly. However, the existing UV-curable coatings are non-aqueous. The coatings have higher flame and explosion ratings and poor safety during use. In addition, reactive diluents need to be used to adjust the viscosity of reactive oligomers, and these reactive diluents are generally It is an acrylate compound, which has certain irritation and allergies to the human body, and is also unfavorable to the environment. Its dosage not only directly affects the shrinkage, adhesion, and appearance flatness of the coating film, but also before UV curing. , The wet film sagging caused by the active diluent is not easy to volatilize, will also affect the paint workability. In recent years, as t...

AI Technical Summary

Problems solved by technology

However, the coating film performance of water-based UV-curable coatings is still not easy to reach the level of non-water-based UV-curable coatings, which delays the process of water-based coatings