Ultraviolet-curable, abrasion-resistant, and weatherable coatings with improved adhesion
Article first published online: 10 MAR 2003
Copyright © 1991 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 42, Issue 6, pages 1551–1556, 20 March 1991
How to Cite
Lewis, L. N. and Katsamberis, D. (1991), Ultraviolet-curable, abrasion-resistant, and weatherable coatings with improved adhesion. J. Appl. Polym. Sci., 42: 1551–1556. doi: 10.1002/app.1991.070420608
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 9 JUL 1990
- Manuscript Received: 24 MAR 1989
A UV-curable coating for plastics that is abrasion resistant and weatherable is described. The coating consists of colloidal silica functionalized with methacryloxypropyltrimethoxy-silane (MAPTMS) in a matrix of acrylic monomers. The formulation employs diethoxyacetophenone (DEAP) as a photoinitiator and a sulfonated benzotriazole as a UV absorber. It has been found that the adhesion of the coating depends greatly on the type of acrylic monomers used and the application parameters. Transmission electron microscopy (TEM) analysis shows that improved adhesion is due to the formation of an interpenetrating layer between coating and substrate.