1. Surface characteristics and water absorption of sol-gel coated impregnated paper pressed onto plywood
- Author
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Juha Nikkola, Anne Christine Ritschkoff, Shaoxia Wang, Juha Mannila, Jouko Peltonen, Saila Jämsä, and Riitta Mahlberg
- Subjects
Coated paper ,Materials science ,Absorption of water ,impregnated paper ,Atomic force microscopy ,General Engineering ,Silane ,Surface energy ,Contact angle ,chemistry.chemical_compound ,sol-gel hybrid coatings ,chemistry ,X-ray photoelectron spectroscopy ,water absorption ,XPS ,plywood ,Composite material ,AFM ,Sol-gel - Abstract
Two silane-based hybrid coatings were developed to modify the surface energy of phenolic resin impregnated paper. The coated paper samples were further pressed onto surfaces of plywood. The surface properties and water repellence of coated paper were investigated by AFM, XPS and water contact angle measurements. The water absorption of plywood with pressed paper was studied by water uptake tests. It was found that the sol-gel coatings had slightly improved the water repellence of the impregnated paper. The water absorption of plywood was also slightly decreased.
- Published
- 2011