In situ synchrotron small- and wide-angle X-ray study on the structural evolution of Kevlar fiber under uniaxial stretching
文献类型：期刊论文
| 作者 | Li, XY; Tian, F; Zhou, P; Yang, CM; Li, XH; Bian, FG; Wang, J |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:85页码:81552-81558 |
| ISSN号 | 2046-2069 |
| 通讯作者 | Yang, CM ; Li, XH (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China. |
| 英文摘要 | The structural evolution and mechanism of Kevlar 29 and Kevlar 129 (poly(p-phenylene terephthalamide)) fibers during stretching were studied by in situ synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS). Compared with Kevlar 29, the tensile strength of Kevlar 129 increased, while the elongation-to-break ratio decreased. SAXS results showed that ordered lamellae were observed only in Kevlar 29. The fibril length of Kevlar 129 was larger than that of Kevlar 29; however, the fibril misorientation width of Kevlar 129 was smaller. During stretching, both the fibril length and fibril misorientation width decreased at low strains, and then increased until the fibrils broke both in Kevlar 29 and Kevlar 129 fibers. From WAXS results, the crystal orientation angle decreased in Kevlar 29 during stretching, while that in Kevlar 129 increased at low strains and then decreased until the fibers broke. The change of crystallinity indicated that the amorphous phase can convert to the crystal phase at high strains, although the conversion ratio was not large. By combining the SAXS and WAXS results, a potential mechanism for Kevlar fibers during stretching was proposed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382776000013 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26538]  |
| 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 | Li, XY,Tian, F,Zhou, P,et al. In situ synchrotron small- and wide-angle X-ray study on the structural evolution of Kevlar fiber under uniaxial stretching[J]. RSC ADVANCES,2016,6(85):81552-81558. |
| APA | Li, XY.,Tian, F.,Zhou, P.,Yang, CM.,Li, XH.,...&Wang, J.(2016).In situ synchrotron small- and wide-angle X-ray study on the structural evolution of Kevlar fiber under uniaxial stretching.RSC ADVANCES,6(85),81552-81558. |
| MLA | Li, XY,et al."In situ synchrotron small- and wide-angle X-ray study on the structural evolution of Kevlar fiber under uniaxial stretching".RSC ADVANCES 6.85(2016):81552-81558. |
入库方式： OAI收割
来源：上海应用物理研究所
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