Structure and performances changes during tensile of aromatic copolysulfonamide fibers under different thermal temperatures via in-situ synchrotron SAXS/WAXS
Li, XY; Yu, JC; Wang, JN; Chen, K; Li, XH; Zhang, YM; Bian, FG; Wang, J
2018
发表期刊EUROPEAN POLYMER JOURNAL
ISSN0014-3057
卷号98页码:354-361
文章类型期刊论文
摘要In situ studies of structure and performance changes in aromatic copolysulfonamide (co-PSA) fibers during stretching at different thermal exposure temperature range from room temperature to 300 degrees C were carried out using synchrotron small angle X-ray scattering and wide angle X-ray scattering techniques. Results showed that the optimum microstructure and mechanical property of co-PSA fibers were achieved when stretched at 200 degrees C, the fibril length, fibril misorientation, crystal sizes L-002 reached minimum, the long period became maximum at the same strain indicating that lamella and fibrils aligned perfectly, fiber structure compactness at 200 degrees C. During stretching at RT to 200 degrees C, at low strain, fibril length, crystal size L-002 increased, fibrils oriented along stretching direction, the long period was enlarged; the opposite trend evolution of structure appeared under high strain. But stretching at 300 degrees C, L-002 increased, fibril orientation became poor, the lamellae destroyed easily resulting in the decreasing strength. It can be concluded that co-PSA fibers remain good property under thermal at 200 degrees C, external force use environment.
关键词X-ray-scattering Kevlar-29 Fiber Aramid Fibers Morphology Evolution
DOI10.1016/j.eurpolymj.2017.11.017
收录类别SCI
语种英语
WOS记录号WOS:000425561700037
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29144
专题中科院上海应用物理研究所2011-2018年
作者单位1.Li, XY
2.Yu, JC
3.Wang, JN
4.Chen, K
5.Li, XH
6.Zhang, YM
7.Bian, FG
8.Wang, J
推荐引用方式
GB/T 7714
Li, XY,Yu, JC,Wang, JN,et al. Structure and performances changes during tensile of aromatic copolysulfonamide fibers under different thermal temperatures via in-situ synchrotron SAXS/WAXS[J]. EUROPEAN POLYMER JOURNAL,2018,98:354-361.
APA Li, XY.,Yu, JC.,Wang, JN.,Chen, K.,Li, XH.,...&Wang, J.(2018).Structure and performances changes during tensile of aromatic copolysulfonamide fibers under different thermal temperatures via in-situ synchrotron SAXS/WAXS.EUROPEAN POLYMER JOURNAL,98,354-361.
MLA Li, XY,et al."Structure and performances changes during tensile of aromatic copolysulfonamide fibers under different thermal temperatures via in-situ synchrotron SAXS/WAXS".EUROPEAN POLYMER JOURNAL 98(2018):354-361.
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