Carbon nanotube-reinforced polyurethane composite fibers

被引:159
作者
Chen, Wei [1 ]
Tao, Xiaoming
Liu, Yuyang
机构
[1] Hong Kong Polytech Univ, Nanotechnol Ctr, Inst Text & Clothing, Kowloon, Hong Kong, Peoples R China
[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China
关键词
thermoplastic polyurethane; carbon nanotube; nanocomposite;
D O I
10.1016/j.compscitech.2006.01.024
中图分类号
TB33 [复合材料];
学科分类号
摘要
Multi-walled carbon nanotubes (MWNTs) reinforced polyurethane (PU) composite fibers have been fabricated via a twin-screw extrusion method. Significant improvement in Young's modulus and tensile strength were achieved by incorporating MWNTs up to 9.3 wt% while without sacrificing PU elastomer's high elongation at break. Electron microscopy was used to investigate dispersion and fracture surfaces, and Raman technique was used to receive information about degree of graphitization. Results indicated that the homogeneous dispersion of MWNTs throughout PU matrix and strong interfacial adhesion between oxidized MWNTs and the matrix are responsible for the considerable enhancement of mechanical properties of the composite fibers. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3029 / 3034
页数:6
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