| 三维编织超高分子量聚乙烯纤维/碳纤维/环氧树脂混杂复合材料力学行为及混杂效应 |
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| 引用本文： | 何芳,王玉林,万怡灶,黄远.三维编织超高分子量聚乙烯纤维/碳纤维/环氧树脂混杂复合材料力学行为及混杂效应[J].复合材料学报,2008,25(6):52-58. |
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| 作者姓名： | 何芳 王玉林 万怡灶 黄远 |
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| 作者单位： | 天津大学 材料学院, 天津市材料复合与功能化重点实验室, 天津 300072 |
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| 基金项目： | 天津市科技计划项目（07ZCKFSF01100） |
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| 摘 要： | 采用复合处理工艺对三维混杂超高分子量聚乙烯纤维/碳纤维编织体进行表面处理， 通过RTM工艺制备了环氧树脂基混杂复合材料（UHMWPE/CF/ER）， 并研究了其力学性能及混杂效应。结果表明， 在纤维总体积分数一定的情况下， 随着超高分子量聚乙烯纤维/碳纤维混杂比的减小， 复合材料的弯曲强度、 弯曲模量及压缩强度增大， 而其纵向剪切强度及冲击韧性降低。三维编织混杂复合材料的断裂机制由混杂纤维的混杂比及其性质决定， 通过调节混杂比可实现对复合材料力学性能的有效调控。
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| 关 键 词： | 三维编织 混杂复合材料 力学性能 混杂效应 |
| 收稿时间： | 2008-03-17 |
| 修稿时间： | 2008-05-27 |
Mechanical properties and hybrid effect of 3D braided UHMWPE fiber/carbon fiber/epoxy resin hybrid composites |
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| HE Fang,WANG Yulin,WAN Yizao,HUANG Yuan.Mechanical properties and hybrid effect of 3D braided UHMWPE fiber/carbon fiber/epoxy resin hybrid composites[J].Acta Materiae Compositae Sinica,2008,25(6):52-58. |
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| Authors: | HE Fang WANG Yulin WAN Yizao HUANG Yuan |
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| Affiliation: | School of Materials Science and Engineering,Tianjin University,Tianjin Key Laboratory of Composite and Functional Materials,Tianjin 300072, China |
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| Abstract: | 3D braided fibers were treated through the composite surface treatment process， and the 3D hybrid epoxy composites reinforced by carbon fiber (CF) and UHMWPE fiber were prepared using the resin transfer molding (RTM) process. The mechanical properties and the hybrid effect were analyzed. The results show that， with the decrease of the hybrid ratio of UHMWPE fiber/CF， the flexural and longitudinal compressive performances of the 3D UHMWPE/CF/ER composites are improved， and their longitudinal shear strength and impact toughness decrease. The fracture mechanism of the 3D UHMWPE/CF/ER hybrid composites is determined by the properties of the two fibers and their hybrid ratio. The mechanical properties of the hybrid composites can be effectively adjusted by the hybrid ratio of the two fibers. |
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| Keywords: | three dimensional braiding hybrid composites mechanical properties hybrid effect |
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