期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 69, 期 3-4, 页码 406-413出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2008.11.008
关键词
Carbon fibers; Carbon nanotube; Nano composites
资金
- Air Force Office of Scientific Research
Polyacrylonitrile (PAN) and PAN/carbon nanotube (CNT) composite (99/1) based carbon fibers with an effective diameter of about 1 mu m have been processed using island-in-a-sea bi-component cross-sectional geometry and gel spinning. PAN/CNT (99/1) based carbon fibers processed using this approach exhibited a tensile strength of 4.5 GPa (2.5 N/tex) and tensile modulus of 463 GPa (257 N/tex), while these values for the control PAN-based carbon fiber processed under the similar conditions were 3.2 GPa (1.8 N/tex) and 337 GPa (187 N/tex), respectively. Properties of these 1 pm diameter carbon fibers have been compared to the properties of the larger diameter (>6 mu m) PAN and PAN/CNT based carbon fibers. (C) 2008 Elsevier Ltd. All rights reserved.
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