On fracture toughness of nano-particle modified epoxy
On fracture toughness of nano-particle modified epoxy
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DOI：
10.1016/j.compositesb.2011.05.014
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发表时间：
2011-12-01
影响因子：
13.1
通讯作者：
Zeng, Ying
中科院分区：
文献类型：
--
作者：
Liu, Hong-Yuan;Wang, Gong-Tao;Zeng, Ying
系统研究了纳米二氧化硅和纳米橡胶粒子对环氧树脂断裂韧性的影响。通过紧凑拉伸试验获得了不同颗粒质量分数的二元SiO2/环氧树脂、二元橡胶/环氧树脂和三元SiO2/橡胶/环氧树脂纳米复合材料的I型断裂韧性（G（IC））。研究发现，加入橡胶或二氧化硅纳米颗粒可以显着提高环氧树脂的G（IC）。然而，混杂纳米复合材料不显示任何“协同”的韧性效应。在断裂测试之前和之后的微观结构进行了检查，以了解纳米颗粒的增韧机制的作用。(C)2011爱思唯尔有限公司保留所有权利。
A systematic study on the effects of silica and rubber nano-particles on the fracture toughness behavior of epoxy was conducted. Mode I fracture toughness (G(IC)) of binary silica/epoxy, binary rubber/epoxy and ternary silica/rubber/epoxy nanocomposites with different particle weight fractions was obtained by compact tension tests. It is found that G(IC) of epoxy can be significantly increased by incorporating either rubber or silica nano-particles. However, hybrid nanocomposites do not display any "synergistic" effect on toughness. Microstructures before and after fracture testing were examined to understand the role of nano-particles on the toughening mechanisms. (C) 2011 Elsevier Ltd. All rights reserved.