Mechanical performance of wood plastic composites containing decayed wood
MetadataShow full item record
This study investigated the potential use of the decayed wood in the manufacture of wood plastic composite (WPC) panel. Scots pine (Pinus sylvestris) sound wood and decayed wood (brown-rot fungi) were used as wood material. Three levels of 30%, 40%, and 50% of sound wood and decayed wood, based on the composition by weight, were mixed with the polypropylene with 3% (based on weight) maleic anhydride grafted PP (MAPP) as a coupling agent. The compound pellets were prepared from twin screw co-rotating extruder. The WPC panels were produced by hot-press molding technique. The chemical properties of sound wood and decayed wood were investigated. The flexural and tensile properties of 3 mm thick WPC panels were determined according to ASTM standards. Although the holocellulose content of the decayed wood was significantly lower than that of the sound wood, there was no great difference between the flexural and tensile properties of the WPC panels containing decayed wood or sound wood. Based on the findings obtained from the present study, it can be said that a certain amount of the decayed wood can be incorporated into the composition of WPCs containing sound wood.