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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)
2014
Source PublicationPOLYMER
ISSN0032-3861
EISSN1873-2291
Volume55Issue:SI16Pages:4270-4280
AbstractIn-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.
KeywordMicrostructure WAXS Carbon fiber
Subject AreaPolymer Science
DOI10.1016/j.polymer.2014.06.073
Indexed BySCI
Language英语
WOS IDWOS:000340812300109
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/225313
Collection多学科研究中心
Recommended Citation
GB/T 7714
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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