Structural evolutions during creep deformation of polyester industrial fiber via in situ synchrotron small-angle X-ray scattering/wide-angle X-ray scattering
文献类型：期刊论文
| 作者 | Chen, K; Liu, YP; Ji, H; Zhang, Y; Wang, YZ; Zhang, YM; Wang, HP |
| 刊名 | JOURNAL OF INDUSTRIAL TEXTILES
 |
| 页码 | - |
| 关键词 | STRAIN-INDUCED CRYSTALLIZATION AMORPHOUS POLY(ETHYLENE-TEREPHTHALATE) UNIAXIAL DEFORMATION TRANSITION POLYETHYLENE MORPHOLOGY LAMELLAR TEMPERATURE DRAWN |
| ISSN号 | 1528-0837 |
| DOI | 10.1177/1528083720937379 |
| 文献子类 | 期刊论文 |
| 英文摘要 | This paper aims to identify the creep mechanisms of high tenacity (HT) polyester industrial fiber under different loads. In-situ synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) tests were conducted on a 1000 D HT fiber during the creep and creep recovery process with a low load (15 N) and a medium load (50 N) as well as creep rupture process with a high load (60 N). The measured creep strain-time curves comprised tensile zone (I), creep deformation zone (II) and creep recovery/rupture zone (III). The SAXS indicated that the macroscopic initial creep strain in zone I and creep deformations in zone II were attributed to conformation transition fromgauchetotransin amorphous region, increasing the amorphous orientation and long period. Irreversible portion of conformation changes accounts for the small unrecoverable plastic creep strain after removing 15 N load in zone III. The initial creep strain in zone I and creep deformations in zone II of the 50 N creep process were bigger than the microscopic long period strain, because amorphous layers had conformational transformation and microfibril slippage which also produced a higher unrecoverable plastic creep strain in zone III. The long period increased significantly at the beginning of rupture zone with 60 N due to fragmentation of amorphous tie molecular. The disappearance of lamellar peaks at the end of rupture zone implied destruction of periodic lamellar structures, for the entire breakage of amorphous chains. The WAXS suggested that the crystal structure was stable under the creep loads. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33157]  |
| 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 |
| 作者单位 | 1.Donghua Univ, Coll Text, Minist Educ, Engn Res Ctr Tech Text, Shanghai, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China 3.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, K,Liu, YP,Ji, H,et al. Structural evolutions during creep deformation of polyester industrial fiber via in situ synchrotron small-angle X-ray scattering/wide-angle X-ray scattering[J]. JOURNAL OF INDUSTRIAL TEXTILES:-. |
| APA | Chen, K.,Liu, YP.,Ji, H.,Zhang, Y.,Wang, YZ.,...&Wang, HP. |
| MLA | Chen, K,et al."Structural evolutions during creep deformation of polyester industrial fiber via in situ synchrotron small-angle X-ray scattering/wide-angle X-ray scattering".JOURNAL OF INDUSTRIAL TEXTILES |
入库方式： OAI收割
来源：上海应用物理研究所
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