Properties of Highly Filled Wood Fiber-Maleic Anhydride Grafted Thermoplastic Blends Composites
In order to make high performance wood-plastic composites (WPCs) from wood-fiber and mixed plastic wastes,virgin resins were compounded to simulate mixed plastic wastes,which included polypropylene,polyethylene and/or polystyrene,then grafted with maleic anhydride (MAH) by reactive extrusion.Highly filled WPCs were prepared by extruding.Mechanical testing results showed that the mechanical properties of the composites based on grafted virgin and waste plastics both significantly enhanced.The compatibility between the different plastics in the blend system and the interfacial adhesion between wood fibers and the blends were both improved with the modification of the blends,as evidenced by SEM.For the composites based on MAH grafted plastics,the water absorption and thickness swell decreased,which is true for the composite made from both virgin and recycled plastics.This blending-grafting modification method can be considered as a feasible approach to use mixed plastic wastes in the manufacture of high performance WPCs.
grafted blends wood plastic composites mechanical properties micromorphology water absorption
Hua Gao Qing-wen Wang Hai-gang Wang Yong-ming Song
Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education),Northeast Forestry University,Harbin 150040,China
国际会议
哈尔滨
英文
1856-1860
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）