Ultraviolet Radiation Curable Paints
Journal
Industrial and Engineering Chemistry Product Research and Development
Journal Volume
24
Journal Issue
1
Pages
113-120
Date Issued
1985
Author(s)
Abstract
In product finishing lines, ultraviolet radiation curing of paints on prefabricated structures could be more energy efficient than curing in natural gas-fired ovens. Diffuse ultraviolet light cures paints on three-dimensional metal parts. The spectral output of radiation sources must complement the absorption spectra of pigments and photoactive agents so that highly pigmented (>35% by weight) thick (>25 μm) films can be fully cured by UV radiation. Photosensitive compounds such as thioxanthones are used to photoinitiate unsaturated resins such as acrylated polyurethanes in paints cured by a free-radical mechanism. Cationic photoinitiators such as sulfonium or iodonium salts of complex metal halide anions are used in the polymerization of epoxy paints by ultraviolet radiation. © 1985, American Chemical Society. All rights reserved.
SDGs
Type
journal article