The Effect of Recycling on Wood-Fiber Thermoplastic Composites

• DOI: 10.3390/polym12081750
• Publication Date: 2020-08-05T19:13:18Z
• Authors: Luísa Rosenstock ...; Irangeli Di Guiseppe; Shiyu Geng; Kristiina Oksman
• Keywords: Polypropylene; Reactive extrusion

The aim of this study was to investigate the effect recycling on polypropylene (PP) and wood-fiber thermoplastic composites (WPCs) using a co-rotating twin-screw extruder. After nine extrusion passes microscopy studies confirmed that fiber length decreased with increased number but processing time also resulted in excellent dispersion interfacial adhesion wood fibers PP matrix. Thermal, rheological, mechanical properties were studied. repeated had minimal thermal behavior viscosity an passes, indicating slight degradation. processes tensile strength WPCs while minor PP. However, even after WPC considerably better (37 MPa) compared (28 MPa). good degree property retention makes strategy viable alternative discarding materials. Thus, it has been demonstrated that, by following most commonly used process, can be recycled several times methodology industrially adapted for manufacturing products.