Developing PHB/wood four/cell debris composites through extrusion

Polyhydroxybutyrate (PHB)-based wood plastic composites (WPCs) are superior to ordinary petroleum-based WPCs in terms of environmental protection. However, PHB is more expensive than many of the commodity petrochemical polymers because of the costly separation and purification processes, which could be avoided by directly using PHB-laden bacteria to produce PHB-based WPC This study investigated the processing parameters, mechanical properties, and water resistance of the extruded composites with varying component ratios. The results indicate that some of the composites had outstanding properties compared with a commercial WPC Therefore, this renewable WPC can replace petroleum-based WPCs on current markets without sacrificing product performance.