期刊
POLYMER
卷 44, 期 19, 页码 5643-5654出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(03)00628-1
关键词
high-strength and high-stiffness UHMWPE films; MWCNT/UHMWPE composite films; micro-Raman spectroscopy
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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