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Structural evolution from shish-kebab to fibrillar crystals during hot-stretching process of gel spinning ultra-high molecular weight polyethylene fibers obtained from low concentration solution
Wang, ZB; An, MF; Xu, HJ; Lv, Y; Tian, F; Gu, Q
2017
Source PublicationPOLYMER
ISSN0032-3861
Volume120Issue:-Pages:244-254
Subtype期刊论文
AbstractThe pre-stretched gel-spinning ultra-high molecular weight polyethylene fibers with low concentration solution obtained from industrial production line were used to study the structural transition from shishkebab to fibrillar crystals during hot-stretching process via in-situ small-angle X-ray scattering, wideangle X-ray diffraction measurements, and scanning electron microscopy. With the increase of hotstretching strain, the kebab crystals (lamellae) undergo stress-induced fragmentation and recrystallization at 90, 100, and 110 degrees C and melting and recrystallization at 120 degrees C to transform to fibrillar crystals. Furthermore, the shish length of pre-stretched fibers at all stretching temperatures first increase and then gradually decrease with the strain, but the number of shish continuously increase and the shish diameter increase firstly and finally keep almost constant. The degree of crystal orientation for all stretching temperatures is as high as above 0.9 during the whole stretching process. These results indicate that the shish-kebab crystals of ultra-high molecular weight polyethylene fibers prepared from low concentration solution can smoothly transform to fibrillar crystals through the hot stretching process. (C) 2017 Published by Elsevier Ltd.
KeywordX-ray-scattering Small-angle Scattering In-situ Small Uhmwpe-fibers Overstretched Polyethylene Mechanical-properties Uniaxial Deformation Carbon-fibers High Strength Morphology
DOI10.1016/j.polymer.2017.05.062
Indexed BySCI
WOS KeywordX-RAY-SCATTERING ; SMALL-ANGLE SCATTERING ; IN-SITU SMALL ; UHMWPE-FIBERS ; OVERSTRETCHED POLYETHYLENE ; MECHANICAL-PROPERTIES ; UNIAXIAL DEFORMATION ; CARBON-FIBERS ; HIGH STRENGTH ; MORPHOLOGY
Language英语
WOS IDWOS:000404180400026
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28833
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Wang, ZB,An, MF,Xu, HJ,et al. Structural evolution from shish-kebab to fibrillar crystals during hot-stretching process of gel spinning ultra-high molecular weight polyethylene fibers obtained from low concentration solution[J]. POLYMER,2017,120(-):244-254.
APA Wang, ZB,An, MF,Xu, HJ,Lv, Y,Tian, F,&Gu, Q.(2017).Structural evolution from shish-kebab to fibrillar crystals during hot-stretching process of gel spinning ultra-high molecular weight polyethylene fibers obtained from low concentration solution.POLYMER,120(-),244-254.
MLA Wang, ZB,et al."Structural evolution from shish-kebab to fibrillar crystals during hot-stretching process of gel spinning ultra-high molecular weight polyethylene fibers obtained from low concentration solution".POLYMER 120.-(2017):244-254.
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