Fabrication and electromagnetic interference shielding effectiveness of carbon nanotube reinforced carbon fiber/pyrolytic carbon composites |
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| Affiliation: | 1. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, PR China;2. School of Material Science and Engineering, University of Jinan, Jinan 250022, PR China;3. Shandong Xiaguang Industrial Co., LTD, Jining 272000, PR China;1. School of Materials Science and Engineering, Shandong University of Science and Technology, 266590 Qingdao, People’s Republic of China;2. Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, 250061 Jinan, People’s Republic of China;1. Beijing Key Laboratory of Advanced Functional Polymer Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. School of Materials Science & Engineering (Blk N4.1), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore;3. Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Carbon nanotube reinforced carbon fiber/pyrolytic carbon composites were fabricated by precursor infiltration and pyrolysis method and their electromagnetic interference shielding effectiveness (EMI SE) was investigated over the frequency range of 8.2–12.4 GHz (X-band). Carbon nanotubes (CNTs) were in situ formed through catalyzing hydrocarbon gases evaporating out of phenolic resin with nano-scaled Ni particles. The content of CNTs increased with the increase of Ni loadings (0.00, 0.50, 0.75 and 1.25 wt.%) in phenolic resin. Thermal gravimetrical analysis results showed that the carbon yield of phenolic resin increased with the addition of Ni catalyst. With the formation of CNTs, the EMI SE increased from 28.3 to 75.2 dB in X-band. The composite containing 5.0 wt.% CNTs showed an SE higher than 70 dB in the whole X-band. |
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