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Research Article

Tensile Modulus of Film Stacked Palm Fibers-LDPE Sheet Composites

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ABSTRACT

Palm fiber-LDPE composites were prepared by a film-stacking method studying the effects of fibers content, their length, processing temperature and alkaline treatment on tensile modulus and modulus efficiency factor. It was found that up to 5 wt.% and processing temperature to 160°C in addition to alkaline treatment improved the tensile modulus and modulus efficiency factor to a certain limit due to an enhancement in load carrying and interfacial adhesion, also it was obvious that long fibers play a positive role in load transfer; improving the tensile modulus and its efficiency factor due to effective load transfer. Ductility was decreased due to the brittle behavior of the fibers.

摘要

采用薄膜堆积法制备了棕榈纤维 LDPE 复合材料,研究了纤维含量、长度、加工温度和碱处理对拉伸模量和模量效率因子的影响. 结果表明,高达5wt%的长纤维,经碱处理后,加工温度达到 160℃时,由于承载力和界面结合力的提高,拉伸模量和模量效率因子提高到一定限度,长纤维对载荷传递起到了积极的作用通过有效载荷传递提高拉伸模量及其效率因子. 由于纤维的脆性,塑性略有下降.

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