Effects of formulation variables on surface properties of wood plastic composites

Published Date

Article (PDF Available) in Composites Part B Engineering 43(2) · March 2012 with 135 Reads

DOI: 10.1016/j.compositesb.2011.07.011

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  1st Nadir Ayrilmis

  36.45 · Istanbul University
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  2nd Jan Thore Benthien

  17.72 · Thünen Institute
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  3rd Heiko Thoemen

Abstract

Degree of surface quality of wood plastic composites (WPCs) is a function of both raw material characteristics and the manufacturing variables. The WPC panels comprised of different panel densities (800, 950, 1000, and 1080kg/m3), wood flour contents (50, 60, 70, and 80wt.%), wood flour sizes (1mm), and hot-pressing temperatures (190 and 210°C) were manufactured using a dry blend/flat-pressing method under laboratory conditions. The surface smoothness of the WPC panels improved with increasing WPC density, plastic content, and hot-pressing temperature while it deteriorated with increasing wood flour size. The reduction in the particle size of the WF resulted in a more compact structure on the WPC surface. In general, the wettability of the samples increased by increasing surface roughness.

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