In Situ Small Angle X-ray Scattering Study on Structural Evolution of Crosslinked Polytetrafluoroethylene During Deformation
文献类型：期刊论文
| 作者 | Li, XY ; Tian, F ; Yang, CM ; Tang, ZF ; Miao, XR ; Wu, GZ ; Li, XH ; Wang, J ; Li, LB |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 131期号:4 |
| 关键词 | ISOTACTIC POLYPROPYLENE CHEMICAL-STRUCTURE PTFE BEHAVIOR FRACTURE LINKING FIBERS SAXS RESISTANCE PHASE |
| ISSN号 | 0021-8995 |
| 通讯作者 | lixiuhong@sinap.ac.cn |
| 英文摘要 | The structural evolution of virgin and crosslinked polytetrafluoroethylene (PTFE) during stretching was studied by in situ synchrotron small-angle X-ray scattering (SAXS). Both yield and tensile stress of crosslinked PTFE increased with increasing crosslinking density. During stretching, for virgin PTFE, amorphous chains gradually turned to tensile direction at early stage, perpendicularly arranged lamellar stacks appeared at high strains (>140%). While for crosslinked PTFE, lamellar structure was observed even at lower strains; with increasing irradiation dose, the lamellar structure became obvious and the long period decreased. Four-point SAXS patterns were observed only in 3000kGy-dosed PTFE during deformation, which indicated that an alternately tilted lamella arrangement called herringbone structure was formed. Radiation dose induces crosslinked networks formed, which can carry part of local stress during deformation, resulting in the increase of yield and tensile stress. Crosslinking density is an important factor on structural evolution. In addition, a deformation mechanism of different crosslinked PTFE is proposed. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39883. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331066200021 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14186]  |
| 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,Yang, CM,et al. In Situ Small Angle X-ray Scattering Study on Structural Evolution of Crosslinked Polytetrafluoroethylene During Deformation[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2014,131(4). |
| APA | Li, XY.,Tian, F.,Yang, CM.,Tang, ZF.,Miao, XR.,...&Li, LB.(2014).In Situ Small Angle X-ray Scattering Study on Structural Evolution of Crosslinked Polytetrafluoroethylene During Deformation.JOURNAL OF APPLIED POLYMER SCIENCE,131(4). |
| MLA | Li, XY,et al."In Situ Small Angle X-ray Scattering Study on Structural Evolution of Crosslinked Polytetrafluoroethylene During Deformation".JOURNAL OF APPLIED POLYMER SCIENCE 131.4(2014). |
入库方式： OAI收割
来源：上海应用物理研究所
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