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Injection Molding of Postconsumer WoodPlastic Composites I: MorphologyDepartment of Chemical Engineering, CERSIM, Université Laval Quebec City, Canada, G1K 7P4
Department of Chemical Engineering, CERSIM, Université Laval Quebec City, Canada, G1K 7P4; Denis.Rodrigue{at}gch.ulaval.ca
Department of Wood Sciences, CERSIM, Université Laval Quebec City, Canada, G1K 7P4 In this study, fiber-reinforced microcellular foams are produced via injection molding and studied as a function of mold temperature as well as wood, blowing agent, and coupling agent concentrations. Birch wood fibers are added to a post-consumer recycled HDPE/PP matrix (85: 15 ratio) in proportions ranging from 0 to 40 wt% and then foamed. Maleic-anhydride-polypropylene copolymer (MAPP) is also used as a coupling agent in proportions ranging from 0 to 10 wt% of wood content. In this first part, the morphological analysis of composite foams is presented including cell roundness, cell size, skin thickness, void fraction, and fiber aspect ratio.
Key Words: injection molding composite foam morphology MAP
Journal of Thermoplastic Composite Materials, Vol. 19, No. 6,
639-657 (2006) |
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