Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering
The analysis of microstructure deformation in polytetrafluoroethylene (PTFE) under heating or stretching conditions is essential to determine the failure mechanism. This study employed the synchrotron X-ray scattering technique to study microstructural deformation in PTFE under heating (25~300 °C),...
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| Format: | Article |
| Language: | zho |
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Science Press
2022-06-01
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| Series: | Fushe yanjiu yu fushe gongyi xuebao |
| Subjects: | |
| Online Access: | http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2022-0032&lang=zh |
| _version_ | 1797900500616609792 |
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| author | SHA Feixiang CHENG Guojun TIAN Feng TANG Zhongfeng |
| author_facet | SHA Feixiang CHENG Guojun TIAN Feng TANG Zhongfeng |
| author_sort | SHA Feixiang |
| collection | DOAJ |
| description | The analysis of microstructure deformation in polytetrafluoroethylene (PTFE) under heating or stretching conditions is essential to determine the failure mechanism. This study employed the synchrotron X-ray scattering technique to study microstructural deformation in PTFE under heating (25~300 °C), different strains at room temperature, and constant stress at variable temperatures (25~175 °C). The results indicate that the scattering the scattering intensity of PTFE increases with an increase in the temperature, and the imperfect crystals gradually melt. When PTFE was stretched under relatively lower strains at room temperature, its molecular chains tilted and lamellar crystals slid and rotated along the stretching direction. Moreover, when PTFE was stretched at constant stress and varying temperatures, its imperfect crystals gradually melted with an increase in the temperature and lamellar crystals were fractured by stress; the crystals were further fractured owing to the α-transition temperature caused by the movement of molecular chains in the amorphous regions. |
| first_indexed | 2024-04-10T08:47:03Z |
| format | Article |
| id | doaj.art-8cb61d9e88fd4d17af1b3808780011dc |
| institution | Directory Open Access Journal |
| issn | 1000-3436 |
| language | zho |
| last_indexed | 2024-04-10T08:47:03Z |
| publishDate | 2022-06-01 |
| publisher | Science Press |
| record_format | Article |
| series | Fushe yanjiu yu fushe gongyi xuebao |
| spelling | doaj.art-8cb61d9e88fd4d17af1b3808780011dc2023-02-22T07:24:11ZzhoScience PressFushe yanjiu yu fushe gongyi xuebao1000-34362022-06-01403152210.11889/j.1000-3436.2022-00321000-3436（2022）03-0015-08Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scatteringSHA Feixiang0CHENG Guojun1TIAN Feng2TANG Zhongfeng3College of Material Science and Engineering, Anhui University of Science & Technology, Huainan 232001, ChinaCollege of Material Science and Engineering, Anhui University of Science & Technology, Huainan 232001, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaThe analysis of microstructure deformation in polytetrafluoroethylene (PTFE) under heating or stretching conditions is essential to determine the failure mechanism. This study employed the synchrotron X-ray scattering technique to study microstructural deformation in PTFE under heating (25~300 °C), different strains at room temperature, and constant stress at variable temperatures (25~175 °C). The results indicate that the scattering the scattering intensity of PTFE increases with an increase in the temperature, and the imperfect crystals gradually melt. When PTFE was stretched under relatively lower strains at room temperature, its molecular chains tilted and lamellar crystals slid and rotated along the stretching direction. Moreover, when PTFE was stretched at constant stress and varying temperatures, its imperfect crystals gradually melted with an increase in the temperature and lamellar crystals were fractured by stress; the crystals were further fractured owing to the α-transition temperature caused by the movement of molecular chains in the amorphous regions.http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2022-0032&lang=zhpolytetrafluoroethylenemicrostructuresynchrotron radiationsmall-angle x-ray scattering (saxs)ultra small-angle x-ray scattering (usaxs) |
| spellingShingle | SHA Feixiang CHENG Guojun TIAN Feng TANG Zhongfeng Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering Fushe yanjiu yu fushe gongyi xuebao polytetrafluoroethylene microstructure synchrotron radiation small-angle x-ray scattering (saxs) ultra small-angle x-ray scattering (usaxs) |
| title | Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering |
| title_full | Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering |
| title_fullStr | Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering |
| title_full_unstemmed | Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering |
| title_short | Analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron X-ray scattering |
| title_sort | analysis of microstructural deformation in polytetrafluoroethylene under heating or stretching conditions by synchrotron x ray scattering |
| topic | polytetrafluoroethylene microstructure synchrotron radiation small-angle x-ray scattering (saxs) ultra small-angle x-ray scattering (usaxs) |
| url | http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2022-0032&lang=zh |
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