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Mechanical properties of bamboo fiber-polyester composites

机译:竹纤维-聚酯复合材料的力学性能

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摘要

Experimental investigations were performed to characterize the mechanical properties of bamboo fiber-polyester composites. The composite laminates were fabricated by infusing different forms of untreated bamboo fibers (randomly oriented, bamboo textiles and bamboo foam cores) with polyester resin. The results showed that the engineered bamboo fiber composites have strength and stiffness properties suitable for structural applications. Among the tested composites, the laminates with randomly oriented bamboo fibers exhibited the highest strength properties. Its strength in flexure, tension, compression, and shear are 58, 35, 48, and 32 MPa, respectively and its Modulus of Elasticity (MOE) is 3.2GPa. However, only the tensile strength and MOE showed better properties to that of neat polyester resin which are 15% and 4% higher, re-spectively possibly due to relatively poor load transfer between the fibers and the matrix. Importantly, the flexural strength of the bamboo fiber-polyester composites is 200% and 30% higher than the standard particleboard and medium density fiberboard, respectively used in the construction industry. It is expected that the results of this preliminary study will provide information to support the development and application of this new generation composites in housing and construction.
机译:进行实验研究以表征竹纤维-聚酯复合材料的机械性能。复合层压板是通过将不同形式的未经处理的竹纤维(随机取向的竹纤维和竹泡沫芯)注入聚酯树脂制成的。结果表明,工程竹纤维复合材料具有适合结构应用的强度和刚度性能。在测试的复合材料中,具有随机取向的竹纤维的层压板表现出最高的强度性能。它的弯曲强度,拉伸强度,压缩强度和剪切强度分别为58、35、48和32 MPa,其弹性模量(MOE)为3.2GPa。但是,仅抗张强度和MOE表现出比纯聚酯树脂更好的性能,分别高15%和4%,这可能是由于纤维和基体之间的载荷传递相对较差。重要的是,竹纤维-聚酯复合材料的弯曲强度分别比建筑行业中使用的标准刨花板和中密度纤维板高200%和30%。预期该初步研究的结果将提供信息,以支持这种新型复合材料在住房和建筑领域的开发和应用。

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