Abstract
The influence of hot stretching graphitization on the structure and mechanical properties of rayon-based carbon fibers was studied. It was observed that the Young’s modulus of the treated fibers increased with heat treatment temperature (HTT) and hot stretching stress, to 173 GPa by 158.2 % through hot stretching at 2700 °C under stress of 270 MPa compared to that of the as-received carbon fiber. Meanwhile the tensile strength increased to 1.75 GPa by 73.3 % through hot stretching at 2700 °C under 252 MPa. The field emission scanning electron images showed markedly increased roughness on the external surface and bigger and more compacted granular morphologies on the cross section of the treated fibers with increasing HTT. The preferred orientation of graphitic layers was improved by hot stretching, and the higher the HTT, the stronger the effectiveness of the hot stretching. The crystallite sizes grew and the crystallite interlayer spacing decreased obviously with increasing HTT but changed just slightly with increasing stretching stress. The analysis based on uniform stress model and shear fracture theory proposed that the improvement of tensile strength and Young’s modulus for rayon-based carbon fiber was mainly due to the increased preferred orientation and nearly unchanged shear modulus between planes with increasing HTT during hot stretching graphitization, which was much different from polyacrylonitrile-based carbon fibers.
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References
Chand S (2000) J Mater Sci 35:1303. doi:10.3390/ma6062543
Karacan I, Soy T (2013) J Mater Sci 48:2009. doi:10.1002/app.38673
Kong K, Deng L, Kinloch IA, Young RJ, Eichhorn SJ (2012) J Mater Sci 47:5402. doi:10.1021/nn203917d
Jeong N, Han S, Kim H, Kim H, You Y (2011) J Mater Sci 46:2041. doi:10.1186/1939-8433
Li D, Wang H, Wang X (2007) J Mater Sci 42:4642. doi:10.1038/ncomms1735
Kaburagi Y, Hosoya K, Yoshida A, Hishiyama Y (2005) Carbon 8:2817
Greene ML, Schwartz RW, Treleaven JW (2002) Carbon 40:1217
Ogale AA, Lin C, Anderson DP, Kearns KM (2002) Carbon 40:1309
Endo M (1988) J Mater Sci 23:598
Wazir AH, Kakakhel L (2009) New Carbon Mater 24:83
Dumanli AG, Windle AH (2012) J Mater Sci 47:4236. doi:10.1007/s10853-013-7458-7
Ozbek S, Isaac DH (1994) Mater Manuf Process 9:199
Bacon R, Schalamon WA (1969) Applied Polymer Symposia 285
Reynolds WN, Sharp JV (1974) Carbon 12:103
Ruland W (1969) Applied Polymer Symposia 9:293
Northolt MG, Veldhuizen LH, Jansen H (1991) Carbon 29:1267
Sauder C, Lamon J (2005) Carbon 43:2044
Xiao H, Lu Y, Qin X, Wen Y (2011) Mater Sci Forum 686:770
Qin X, Lu Y, Xiao H, Wen Y, Yu T (2012) Carbon 50:4459
Guinier A, Fournet G (1951) In: Small-angle scattering of X-rays. Willy, New York
Wen Y, Lu Y, Xiao H, Qin X (2012) Mater Des 36:728
Fitzer E (1989) Carbon 27:621
Fischer L, Ruland W (1980) Colloid Polym Sci 258:917
Qin X, Lu Y, Xiao H, Song Y (2012) Mater Lett 76:162
Xiao H, Lu Y, Wang M, Qin X, Luan J (2013) Carbon 52:427
Acknowledgements
Thanks for the support from the National Special Fund for Forestry Scientific Research in the Public Interest (Grant No.201004057), the Cultivation Fund of the Key Scientific and Technical Innovation Project from Ministry of Education of China, and the Innovation Funds for Ph.D Students of Donghua University and the China Scholarship Council.
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Zhang, X., Lu, Y., Xiao, H. et al. Effect of hot stretching graphitization on the structure and mechanical properties of rayon-based carbon fibers. J Mater Sci 49, 673–684 (2014). https://doi.org/10.1007/s10853-013-7748-0
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DOI: https://doi.org/10.1007/s10853-013-7748-0