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Effect of gamma-irradiation on the mechanical properties of polyacrylonitrile-based carbon fiber
Xiao Hao; Lu Yonggen; Wang Mouhua(王谋华); Qin Xianying; Zhao Weizhe; Luan Jian
2013
Source PublicationCARBON
ISSN0008-6223
Volume52Pages:CONCATENATE(Sheet1!I96,-Sheet1!J96)
AbstractThe influence of gamma-irradiation on the structure and mechanical properties of polyacrylonitrile-based carbon fibers was studied. It was observed that the Young's modulus of the fibers irradiated increased with irradiation dose, increasing to 267 GPa at 300 kGy, a 16.1% improvement compared to that of as-received carbon fiber. However, the tensile strength increased to 5.4 GPa at 30 kGy, i.e., a 17.4% increase, and then dropped to 4.65 GPa at 300 kGy, which is almost the same as for the untreated fiber. Uniform stress model analysis and Raman spectroscopy show that the degree of covalent cross-linking between the graphene planes increased to a maximum at 30 kGy and then remained almost constant with further irradiation. The SEM images show that the degree of surface roughness increased with the increasing irradiation dose. It is believed that when the dose is less than 30 kGy, the increased cross-linking is the dominant effect, and thus improves the tensile strength. On the other hand, further irradiation generates surface flaws, which neutralizes the increase and results in a decrease of tensile strength. (C) 2012 Elsevier Ltd. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000314192700047
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13725
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Xiao Hao,Lu Yonggen,Wang Mouhua,et al. Effect of gamma-irradiation on the mechanical properties of polyacrylonitrile-based carbon fiber[J]. CARBON,2013,52:CONCATENATE(Sheet1!I96,-Sheet1!J96).
APA Xiao Hao,Lu Yonggen,Wang Mouhua,Qin Xianying,Zhao Weizhe,&Luan Jian.(2013).Effect of gamma-irradiation on the mechanical properties of polyacrylonitrile-based carbon fiber.CARBON,52,CONCATENATE(Sheet1!I96,-Sheet1!J96).
MLA Xiao Hao,et al."Effect of gamma-irradiation on the mechanical properties of polyacrylonitrile-based carbon fiber".CARBON 52(2013):CONCATENATE(Sheet1!I96,-Sheet1!J96).
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