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题名: The Influence of Chitin Nanocrystals on Structural Evolution of Ultra-high Molecular Weight Polyethylene/Chitin Nanocrystal Fibers in Hot-drawing Process
作者: An, MF; Xu, HJ; Lv, Y; Zhang, L; Gu, Q; Tian, F; Wang, ZB
刊名: CHINESE JOURNAL OF POLYMER SCIENCE
出版日期: 2016
卷号: 34, 期号:11, 页码:1373-1385
关键词: UHMWPE fibers ; Chitin nanocrystals ; Shish-kebab ; Orientation
DOI: 10.1007/s10118-016-1843-z
通讯作者: Wang, ZB (reprint author), Ningbo Univ, Fac Mat Sci & Chem Engn, Ningbo Key Lab Specialty Polymers, Ningbo 315211, Zhejiang, Peoples R China.
文章类型: 期刊论文
英文摘要: Ultra-high molecular weight polyethylene ( UHMWPE)/chitin nanocrystal ( CNC) fibers were prepared. Compared with the pure UHMWPE fibers, the ultimate tensile strength and Young's modulus of UHMWPE/CNC fibers are improved by 15.7% and 49.6%, respectively, with the addition of chitin nanocrystals ( CNCs) of 1 wt%. The melting temperature ( T-m) of UHMWPE/CNC fibers was higher than that of pure UHMWPE fibers. Pure UHMWPE fibers and UHMWPE/CNC fibers were characterized with respect to crystallinity, orientation and kebab structure by wide-angle X-ray diffraction ( WAXD), small-angle X-ray scattering ( SAXS) and scanning electron microscopy ( SEM). It is found that the CNCs act as the shish structure in UHMWPE/CNC fibers and the kebab crystals are grown around the CNCs. There was almost no difference between pure UHMWPE fibers and UHMWPE/CNC fibers in orientation. But the degree of crystallinity of various stages of UHMWPE/CNC fibers was respectively higher than the corresponding stage of pure UHMWPE fibers. Moreover, the addition of 1 wt% CNCs improved the thickness of kebab crystals and accelerated the transformation of kebab to shish.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000386709500008
ISSN号: 0256-7679
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26654
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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