A novel failure analysis of multi-walled carbon nanotubes in epoxy matrix

被引：73
作者：
Tang, Long-cheng [1 ,2 ]
Zhang, Hui [1 ]
Wu, Xiao-ping [2 ]
Zhang, Zhong [1 ,3 ]
机构：
[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Peoples R China
[3] Tsinghua Univ, Ctr Nano & Micro Mech, Beijing 100084, Peoples R China
来源：
POLYMER | 2011年 / 52卷 / 09期
关键词：
Failure analysis; Carbon nanotubes; Epoxy; LOAD-TRANSFER; COMPOSITES; STRENGTH; LENGTH;
D O I：
10.1016/j.polymer.2011.03.002
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The failure analysis of reinforcing elements is of great significance to understand the structure-property relationship in polymer composites. Herein, we reported an improved methodology to ascertain and contrast the failure modes from one pair of homologous fracture surfaces of multi-walled carbon nanotubes (MWCNTs)/epoxy samples at high-magnification using scanning electron microscopy. Three possible failure modes of MWCNTs, i.e. pullout, immediate fracture and sliding-fracture, were proposed to account for the fractographic observation. Based on this approach, the failure modes of MWCNTs before and after surface modification were quantitatively discussed. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2070 / 2074
页数：5
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