期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 85, 期 -, 页码 36-42出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2013.05.016
关键词
Carbon fibers; Carbon nanotubes; Hybrid composites; Interfacial strength; Chemical grafting
资金
- National Natural Science Foundation of China (NSFC) [11272109]
- Fundamental Research Funds for the Central Universities [HIT. BRETIII.201215]
- 7th Singapore-China Joint Research Plan [2011DFA51230]
Carbon nanotubes (CNTs) were chemically grafted onto carbon fiber (CF) by 1,3-propodiamine bridging. The grafting density could be tuned by reaction time and concentration of 1,3-propodiamine. The fourier transform infrared spectra and X-ray photoelectron spectroscopy confirmed the chemical bonding nature between CNT and CF. The interfacial shear strength of the hierarchical composites is highly dependent on the grafting density, which could be two times that of as-received composite. The interfacial enhancement mechanism was also analyzed. (C) 2013 Elsevier Ltd. All rights reserved.
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