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首页> 外文期刊>Journal of Applied Polymer Science >Morphology and mechanical properties of unidirectional sisal-epoxy composites
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Morphology and mechanical properties of unidirectional sisal-epoxy composites

机译：单向剑麻-环氧树脂复合材料的形貌和力学性能

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摘要

Plant fibers are of increasing interest for use in composite materials. They are renewable resources and waste management is easier than with glass fibers. In the present study, longitudinal stiffness and strength as well as morphology of unidirectional sisal-epoxy composites manufactured by resin transfer molding (RTM) were studied. Horseshoe-shaped sisal fiber bundles (technical fibers) were nonuniformly distributed in the matrix, In contrast to many wood composites, lumen was not filled by polymer matrix. Technical sisal fibers showed higher effective modulus when included in the composite material than in the technical fiber test (40 GPa as compared with 24 GPa). In contrast, the effective technical fiber strength in the composites was estimated to be around 400 MPa in comparison with a measured technical fiber tensile strength of 550 MPa. Reasons for these phenomena are discussed. (C) 2002 Wiley Periodicals. Inc. [References: 19]
机译：植物纤维越来越多地用于复合材料。它们是可再生资源，废物管理比玻璃纤维容易。在本研究中，研究了通过树脂传递模塑（RTM）制造的单向剑麻-环氧树脂复合材料的纵向刚度和强度以及形态。马蹄形的剑麻纤维束（工业纤维）在基质中分布不均匀。与许多木质复合材料相比，聚合物基质并未填充管腔。当包含在复合材料中时，工业剑麻纤维显示出比工业纤维测试中更高的有效模量（40 GPa对24 GPa）。相比之下，与测得的550 MPa技术纤维的拉伸强度相比，复合材料中的有效技术纤维强度估计约为400 MPa。讨论了这些现象的原因。 （C）2002 Wiley期刊。 Inc. [参考：19]

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