Characterization of the surface and the interphase of PVC–copper amine-treated wood composites

• Published in: Applied surface science Vol. 256; no. 14; pp. 4559 - 4563
• Main Authors: Jiang, Haihong, Kamdem, D. Pascal
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-05-2010; Elsevier
• Subjects: ADHESION; AMINES; CHLORIDES; COMPOSITES; Condensed matter: structure, mechanical and thermal properties; Contact angle; COPPER AMINE; Exact sciences and technology; Insects; Interfacial shear; Interfacial shear strength; Interphase; Mechanical and acoustical properties; Monitors; Physical properties of thin films, nonelectronic; Physics; Polyvinyl chlorides; PVC; SHEAR STRENGTH; Solid surfaces and solid-solid interfaces; Solid-fluid interfaces; SURFACE ENERGY; Surface energy; thermodynamic properties; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Wetting; WOOD; Wood composites; Copper amine; Contact angle; PVC; Wood composites; Surface energy; Interfacial shear; Shear; Wood; Wetting; Shear strength; Adhesion; Contact surface; Fibers; Composite materials; Transition elements; Copper compounds
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2010.02.047

Contact angles and surface energy of wood, as well as interfacial shear strength between wood and polyvinyl chloride (PVC) were investigated and used to monitor the modifications generated on the surfaces of wood treated with a copper ethanolamine solution. An increase in surface energy of wood after treatments promotes wetting of PVC on wood surfaces. Improved interfacial shear strength between treated wood and PVC matrix can be attributed to the formation of a stronger wood–PVC interphase. This suggests that treatment may be used to improve the adhesion between wood surface and PVC in the formulation of wood fiber composites to yield products with enhanced mechanical properties and better biological and physical performance against decay and insect destroying wood.