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玄武岩纤维增强木塑复合材料的力学性能

, PP. 162-167

Keywords: 木塑复合材料,玄武岩纤维,力学性能,弱端面,短纤维,复合材料

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Abstract:

研究了用短切玄武岩纤维(BF)增强木塑(WPC)复合材料(BF/WPC)体系中,BF的含量与BF/WPC力学性能之间的关系,定性探讨了纤维增强机制。结果表明,与WPC相比,除断裂伸长率有所下降之外,BF/WPC的拉伸强度、冲击强度、弯曲强度均有明显提高,且这些性能取得最大值时BF的质量分数分别为15%~30%、15%~25%、20%~30%,提高的幅度约为30%。提出了"弱端面"的定性假说,由此解释了BF/WPC各项强度指标与增强纤维含量之间存在着最大值现象的原因。

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