UV (Ultraviolet) varnish and preparation method thereof

Abstract

The invention discloses a UV (ultraviolet) varnish and a preparation method thereof. The UV varnish is composed of the following raw materials in parts by weight: 50-60 parts of polyurethane acrylate, 10-20 parts of epoxy acrylate, 10-15 parts of ethyl acetate, 8-10 parts of toluene, 2-4 parts of 1,6-hexandiol diacrylate, 2-3 parts of tripropylene glycol diacrylate, 2-4 parts of 1-hydroxy-cyclohexy-phenyl ketone, 1-2 parts of 2,4,6-trimethyl benzoyl ethyl phenyl phosphoinate, 1-2 parts of zinc dialkyl dithiophosphate, 0.8-1 part of poly(butyl acrylate), 0.8-1 part of ehtanediamine, 0.8-1 part of N-2-(aimno ethyl)-3-aminopropyl trimethoxy silane, 0.8-1 part of ehtanediamine tetramethylene phosphornic acid sodium salt, 0.3-0.5 part of plant ash, 3-5 parts of modified complexing agent, and 2-4 parts of light calcium carbonate. The paint produced by the method disclosed by the invention is strong in adhesive force, good in paint film hardness and gloss, and strong in cold-heat circulating resistance, alcohol resistance and wear resistance; and the physical property of the paint film is further enhanced by the added modified complexing agent and light calcium carbonate.

Description

Technical field The present invention mainly relates to a paint, in particular to a UV varnish and a preparation method thereof. Background technique UV coating has the advantages of fast curing speed, energy saving, normal temperature curing, superior performance, and environmental protection. It has fast glazing speed and high film brightness. After drying, the film surface is strong and heat resistant, which can make the surface of the substrate very bright and smooth. , Good refraction effect, make the substrate produce a strong sense of subject, has been widely used in chemical, machinery, electronics, light industry, communications and other fields. However, some materials, especially metal materials, have smooth surfaces and spray UV coatings. Due to insufficient adhesion, the spraying effect is not ideal. For example, magnesium alloy, its surface coating is more difficult, the sprayed UV varnish may fall off, which seriously affects the appearance effect, and loses th...

AI Technical Summary

Problems solved by technology

However, some substances, especially metal substances, have a smooth surface, and spraying UV coatings, due to insufficient adhesion, makes the spraying effect unsatisfactory

For example, magnesium alloy, its surface coating is more difficult, the sprayed UV varnish may fall off, which seriously affects the appearance effect, and loses the function of UV varnish protective film

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