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Effects of processing method and fiber size on the structure and properties of wood–plastic composites
Authors:Sebastien Migneault  Ahmed Koubaa  Fouad Erchiqui  Abdelkader Chaala  Karl Englund  Michael P Wolcott
Affiliation:1. Centre de recherche sur le bois, Université Laval, Que., Canada G1V 0A6;2. Chaire de recherche du Canada en valorisation, caractérisation et transformation du bois, Université du Québec en Abitibi-Témiscamingue, 445 boul. de l’Université, Rouyn-Noranda, Que., Canada J9X 5E4;3. Service de recherche et d’expertise en transformation des produits forestiers, 25 rue Armand-Sinclair, Amqui Que., Canada G5J 1K3;4. Wood Materials and Engineering Laboratory, Washington State University, Pullman, WA 99164-1806, USA;1. Department of Chemistry, Jinan University, Guangzhou 510632, China;2. Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China;3. Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China;1. Renewable Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83844-1132, USA;2. Department of Wood Science and Engineering, Oregon State University, Corvallis, OR, USA;1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China;2. College of Materials Science and Technology, South China University of Technology, Guangzhou 510640, China;3. Guangzhou LESCO-KINGFA WPC Technology Co., Ltd., Guangzhou 510520, China;4. Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangdong University of Technology, Guangzhou 510006, China
Abstract:The aim of this study was to understand the roles of processing method and fiber size on the properties of wood–plastic composites (WPC). Composites were manufactured using extrusion or injection molding (IM) and fibers of different fiber length-to-diameter (L/D) ratio. IM resulted in better mechanical properties and lower water absorption and swelling than extrusion. These differences can be explained by the structure and surface quality of the composites. Fiber L/D ratio had a beneficial effect on mechanical properties but resulted in decreased water absorption characteristics. These results allow identifying a suitable forming process and/or fiber size according to application needs. This study provides a better understanding of the relationships between processing method, fiber characteristics, and composite behavior.
Keywords:
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