Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 33, Issue 1, Pages 43-52Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S1359-835X(01)00071-9
Keywords
polymer-matrix composites (PMCs); hybrid; mechanical properties
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Short bamboo fiber reinforced polypropylene composites (BFRP) and short bamboo-glass fiber reinforced polypropylene hybrid composites (BGRP) were fabricated using a compression molding method. Maleic anhydride polypropylene (MAPP) was used as a compatibilizer to improve the adhesion between the reinforcements and the matrix material. By incorporating up to 20% (by mass) glass fiber, the tensile and flexural modulus of BGRP were increased by 12.5 and 10%, respectively; and the tensile and flexural strength were increased by 7 and 25%, respectively, compared to those of BFRP. Sorption behavior and effects of environmental aging on tensile properties of both BFRP and BGRP systems were studied by immersing samples in water for up to 1200 h at 25 degreesC. Compared to BFRP, a 4% drop in saturated moisture level is seen in BGRP. After aging in water for 1200 h, reduction in tensile strength and modulus for BGRP is nearly two times less than that of BFRP. Use of MAPP as coupling agent in the polypropylene matrix results in decreased saturated moisture absorption level and enhanced mechanical properties for both BFRP and BGRP systems. Thus it is shown that the durability of bamboo fiber reinforced polypropylene can be enhanced by hybridization with small amount of glass fibers. (C) 2001 Elsevier Science Ltd. All rights reserved.
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