In-situ microstructural changes of polyacrylonitrile based fibers with stretching deformation
Gong Y(宫宇); Du R(杜蓉); Mo G(默广); Gong, Y; Du, R; Mo, G; Xing, XQ; Lu, CX; Wu, ZH; Xing XQ(邢雪青); Wu ZH(吴忠华)
刊名POLYMER
2014
卷号55期号:SI16页码:4270-4280
关键词Microstructure WAXS Carbon fiber
学科分类Polymer Science
DOI10.1016/j.polymer.2014.06.073
英文摘要In-situ wide-angle X-ray scattering technique was used to investigate the microstructural changes of polyacrylonitrile (PAN) based fibers with the macroscopic fiber strain. Crystalline phase, transition layer, and amorphous matrix were found coexistence in the PANFs. Tensile deformation induced the PAN-chain transformation from amorphous matrix to crystalline region through the transition layer. After the PANFs were oxidized into stabilized fibers (SFs), the SFs inherited the amorphous and crystalline phases of the PANFs, but the transition layer disappeared and a cyclized ladder structure was formed. Partial PAN chains were anchored to the relatively rigid ladder structure, leading PAN chains folding with tensile deformation. After the SFs were further carbonated into carbon fibers (CFs), two rigid turbostratic structures were formed in the CFs. A new structure model was proposed to describe the microscopic structure changes with macroscopic fiber strains as well as the structural development from PANFs to SFs then to CFs. (C) 2014 Elsevier Ltd. All rights reserved.
收录类别SCI
WOS记录号WOS:000340812300109
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225313
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Gong Y,Du R,Mo G,et al. In-situ microstructural changes of polyacrylonitrile based fibers with stretching deformation[J]. POLYMER,2014,55(SI16):4270-4280.
APA 宫宇.,杜蓉.,默广.,Gong, Y.,Du, R.,...&吴忠华.(2014).In-situ microstructural changes of polyacrylonitrile based fibers with stretching deformation.POLYMER,55(SI16),4270-4280.
MLA 宫宇,et al."In-situ microstructural changes of polyacrylonitrile based fibers with stretching deformation".POLYMER 55.SI16(2014):4270-4280.
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