Assessment of Extruded Wood Plastic Composite Decking Materials
Wastes such as saw dust (Pinus Radiata) and milk bottles (High Density Polyethylene - HDPE) are available in abundance. Composite decking materials, consisting of different weight percentages (60%, 70% and 80%) of saw dust and recovered HDPE, were extruded using a co-rotating, conical, twin screw extruder with a decking-profile die. The extruded decking materials were evaluated on their surface finish and shape conformance. The extruded decking materials were tested in accordance with the appropriate ASTM standards to determine their water absorption, thickness swell, static coefficient of friction, weathering and flexural (four-point bending) properties after they met the required quality ratings.
Joong Hee Lee
K. Jayaraman et al., "Assessment of Extruded Wood Plastic Composite Decking Materials", Advanced Materials Research, Vols. 123-125, pp. 1111-1114, 2010