Effect of gamma-irradiation on the mechanical properties of polyacrylonitrile-based carbon fiber

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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
刊名	CARBON
	2013
卷号	52 页码:CONCATENATE(Sheet1!I96,-Sheet1!J96)
ISSN号	0008-6223
英文摘要	The 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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000314192700047
公开日期	2014-06-13
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/13725]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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).