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Metal Catalyst for Preparation of Multiscale Reinforcement of Carbon Nanotubes on Carbon Fibers |
Yanxiang WANG1, Shunsheng SU1( ), Wenxin FAN1,2, Jianjie QIN1, Ce QU1, Chengguo WANG1 |
1 Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, China 2 School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China |
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Cite this article:
Yanxiang WANG, Shunsheng SU, Wenxin FAN, Jianjie QIN, Ce QU, Chengguo WANG. Metal Catalyst for Preparation of Multiscale Reinforcement of Carbon Nanotubes on Carbon Fibers. Chinese Journal of Materials Research, 2018, 32(7): 495-501.
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Abstract Carbon nanotubes (CNTs)-grafted carbon fibers, which can significantly improve the tensile strength of carbon fibers, were successfully prepared via chemical vapor deposition (CVD) process. It was found that the metal catalyst composition had a little influence on the morphology of catalyst particles and tensile strength of carbon fibers after the reduction of catalyst precursor, but significantly affected the growth rate of CNTs and the corresponding tensile strength of CNT-grafted carbon fibers. High catalyst activity not only contributes to the high-efficiency for the synthesis of CNTs, but also facilitate the healing of damages on surface and strengthening of carbon fibers. Fe-Cu and Ni-Cu catalysts were found to be high efficient catalyst for CNTs growth. Therewith, the tensile strength of the CNTs grafted carbon fiber prepared in the presence of catalysts of Fe-Cu and Ni-Cu increased by 12.26% and 12.80% respectively.
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Received: 23 January 2018
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Fund: Supported by Natural Science Foundation Project of Shangdong (Nos. ZR2017MEM011 & 2018GGX104022) and National Natural Science Foundation of China (No. 51573087) |
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