Nanostructural hereditability in polyacrylonitrile based fibers studied by small angle X-ray scattering
文献类型：期刊论文
| 作者 | Mo, G ; Du, R; Gong, Y; Xing XQ(邢雪青); Mo G(默广); Du R(杜蓉); Gong Y(宫宇); Wu ZH(吴忠华); Wu, ZH; Lu, CX
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| 刊名 | POLYMER
 |
| 出版日期 | 2018 |
| 卷号 | 153页码:485-497 |
| 关键词 | SAXS PAN Carbon fiber |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2018.08.034 |
| 文献子类 | Article |
| 英文摘要 | The description of nanostructures in polyacrylonitrile fibers (PANFs), stabilized fibers (SFs) and carbon fibers (CFs) is still ambiguous and even controversial. In this paper, small angle X-ray scattering (SAXS) technique was used to characterize the nanostructures in PANFs, SFs, and CFs. Grubb and Thunemann-Ruland methods were used to analyze the orientation of the anisotropic scatterers in the fibers, and Shioya-Takaku method was used to analyze the lateral dimension of the anisotropic scatterers. The 2D-SAXS patterns were well decomposed into a diamond-like component and a fan-shaped component based on the simulation of SAXS patterns. The results demonstrate that there are always some microfibrils that contribute to the diamond-like SAXS intensity distribution in the three fibers. Besides, there are some extra vacancies that contribute to the scattering background in the SFs. However, microvoids and microfibrils jointly contribute the SAXS patterns of CFs. The dimensions and orientation distribution of these scatterers have been obtained, presenting a structural hereditability from PANFs, to SFs, and then to CFs. In-situ SAXS studies on the three fibers were also performed under the axial tensile deformation. It has been found that the lateral sizes of microfibrils are almost unchanged, implying that the deformation breakage of the fibers is accompanied by the relative slippage of microfibrils. New structural models for the three fibers are given in this paper. |
| 电子版国际标准刊号 | 1873-2291 |
| WOS关键词 | CARBON-FIBERS ; OXIDATIVE STABILIZATION ; DEFORMATION ; DIFFRACTION ; MICROVOIDS ; POLYMERS ; BEHAVIOR |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000445783300054 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286375]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 通讯作者 | Wu ZH(吴忠华) |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Mo, G,Du, R,Gong, Y,et al. Nanostructural hereditability in polyacrylonitrile based fibers studied by small angle X-ray scattering[J]. POLYMER,2018,153:485-497. |
| APA | Mo, G.,Du, R.,Gong, Y.,邢雪青.,默广.,...&Xing, XQ.(2018).Nanostructural hereditability in polyacrylonitrile based fibers studied by small angle X-ray scattering.POLYMER,153,485-497. |
| MLA | Mo, G,et al."Nanostructural hereditability in polyacrylonitrile based fibers studied by small angle X-ray scattering".POLYMER 153(2018):485-497. |
入库方式： OAI收割
来源：高能物理研究所
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