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含环氧-SiC复合微/纳米纤维的层合板制备及其力学性能

, PP. 20-24

Keywords: 复合纳米纤维,同轴共纺,层间界面,复合材料,弯曲性能,层间剪切强度,冲击韧性

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Abstract:

应用同轴静电纺丝技术制备环氧包覆纳米SiC复合微/纳米纤维,将该复合微/纳米纤维收集成无纺布薄膜引入层合板层间界面并固化成型,研究其对层合板力学性能的影响。采用扫描电子显微镜(SEM)和透射电子显微镜(TEM)分析了微/纳米纤维的形貌和结构,并测试了微/纳米纤维薄膜的拉伸性能。应用三点弯曲、短梁剪切和简支式冲击实验测定了层合板的弯曲性能、层间剪切强度和冲击韧性。结果表明,一定厚度及一定SiC含量的微/纳米纤维无纺布薄膜对层合板的力学性能无显著影响。

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