Toughening high performance ultrahigh molecular weight polyethylene using multiwalled carbon nanotubes

被引：380
|
作者：
Ruan, SL
Gao, P [1 ]
Yang, XG
Yu, TX
机构：
[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
来源：
POLYMER | 2003年 / 44卷 / 19期
关键词：
high-strength and high-stiffness UHMWPE films; MWCNT/UHMWPE composite films; micro-Raman spectroscopy;
D O I：
10.1016/S0032-3861(03)00628-1
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We report experimental observations on the drastically enhanced toughness in the high-strength and high-modulus ultrahigh molecular weight polyethylene (UFMWPE) films due to the addition of 1 wt% multiwalled carbon nanotubes (MWCNTs). A combination of tensile and Raman spectroscopic measurements showed that the presence of MWCNTs in the composites can lead to a similar to150% increase in strain energy density in comparison with the pure UPMWPE film at similar draw ratios. This is accompanied with an increase of similar to140% in ductility and up to 25% in tensile strength. We attribute the above observations to the chain mobility enhancement in UHMWPE induced by the MWCNTs. (C) 2003 Elsevier Ltd. All rights reserved.
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页码：5643 / 5654
页数：12
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