Functionalization of multi-wall carbon nanotubes to reduce the coefficient of the friction and improve the wear resistance of multi-wall carbon nanotube/epoxy composites

被引：123
作者：
Cui, Li-Jun [1 ]
Geng, Hong-Zhang [1 ]
Wang, Wen-Yi [1 ]
Chen, Li-Ting [1 ]
Gao, Jing [1 ]
机构：
[1] Tianjin Polytech Univ, Sch Mat Sci & Engn, State Key Lab Hollow Fiber Membrane Mat & Membran, Tianjin 300387, Peoples R China
来源：
CARBON | 2013年 / 54卷
关键词：
BEHAVIOR;
D O I：
10.1016/j.carbon.2012.11.039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Functionalization of multi-wall carbon nanotubes (MWCNTs) was achieved by grafting carboxyl groups and amino groups. Fourier transform infrared spectroscopy was used to detect the changes produced by functional groups on the surface of the MWCNTs. Three different MWCNTs were incorporated into epoxy resin and the friction and wear behavior of MWCNT/epoxy composites was investigated using a M-2000 wear testing machine at different sliding speeds under different applied loads. Scanning electron microscopy was used to observe the worn surfaces of the samples. The results indicated that the functional groups had been grafted on the surface of MWCNTs. Compared with neat epoxy, the composites with MWCNTs showed a lower friction coefficient and wear rate, and the wear rate decreased with the increase of MWCNT loading. Combining epoxy resin with MWCNTs is an efficient method to improve the wear resistance and decrease the coefficient of friction. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：277 / 282
页数：6
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