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http://dx.doi.org/10.7473/EC.2011.46.3.223

Mechanical and Impact Properties and Heat Deflection Temperature of Wood Flour-reinforced Recycled Polyethylene Green Composites  

Lee, Ki-Young (Polymer/Bio-Composites Research Lab, Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Cho, Dong-Hwan (Polymer/Bio-Composites Research Lab, Department of Polymer Science and Engineering, Kumoh National Institute of Technolog)
Publication Information
Elastomers and Composites / v.46, no.3, 2011 , pp. 223-230 More about this Journal
Abstract
Considering of utilizing renewable resources and recycled plastics, green composites consisted of recycled polyethylene (PE) as matrix and eco-friendly natural fibers as reinforcement were processed and characterized in the present study. First, the wood flour/recycled polyethylene pellets with different wood flour contents were prepared by twin-screw extrusion processing. Using the pellets, wood flour/recycled polyethylene green composites were fabricated and the effects of wood flour loading on their flexural, tensile, impact properties, heat deflection temperature and fracture behavior were investigated. It was concluded that the flexural strength, flexural modulus, tensile modulus and heat deflection temperature of wood flour/recycled polyethylene green composites were increased with wood flour, whereas the tensile strength and impact strength were decreased. The fracture behavior observed by means of scanning electron microscopy supported qualitatively the tendency of the impact strength with wood flour loading, compared with the ductile fracture pattern of recycled polyethylene.
Keywords
green composites; recycled polyethylene; wood flour; mechanical properties; impact strength; heat deflection temperature;
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