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首页> 外文期刊>Journal of Materials Science >Spinning of the solutions of poly(vinyl alcohol)/NaCl/H2O systems and their fiber properties
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Spinning of the solutions of poly(vinyl alcohol)/NaCl/H2O systems and their fiber properties

机译：聚乙烯醇/ NaCl / H2 O体系溶液的纺丝及其纤维性能

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摘要

The NaCl/water solutions of commercial poly(vinyl alcohol) (a-PVA) with the degrees of polymerization and saponification of 1730 and 99.39%, respectively were gel-spun into methanol (−30°C) and then the removed NaCl dry-filaments were drawn at 200°C. The draw ratio showed the maximum at NaCl concentration C N = 3 wt% (polymer concentration C P = 150 kg/m3). The Young's modulus and strength at break were 95 and 6 GPa (λ = 19). In the case of DMSO system (C P = 170 kg/m3), the Young's modulus was 52 GPa (λ = 25) and the strength at break was 3.3 GPa. Under a polarized microscope, the fine lateral structure was observed for the DMSO system, but not for the NaCl system, that is, the smooth structure was recognized. The smooth structure, like a Netlon packing net for oranges, might be considered to result in heightening of mechanical properties.
机译：将聚合度和皂化度分别为1730和99.39％的商用聚乙烯醇（a-PVA）的NaCl /水溶液凝胶纺丝到甲醇（-30°C）中，然后将所干燥的NaCl干燥，在200℃下拉丝。拉伸比在NaCl浓度C N = 3 wt％（聚合物浓度C P = 150 kg / m3 ）时显示出最大值。杨氏模量和断裂强度为95和6GPa（λ＝ 19）。在DMSO系统中（CP = 170 kg / m3 ），杨氏模量为52 GPa（λ= 25），断裂强度为3.3 GPa。在偏光显微镜下，对于DMSO系统观察到了精细的横向结构，但对于NaCl系统却观察不到了，即，确认了光滑的结构。光滑的结构，例如用于橘子的Netlon包装网，可能会导致机械性能的提高。

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  • 来源
    《Journal of Materials Science》 |2004年第5期|1609-1614|共6页
  • 作者

    K. Yamaura; T. Katoh; K. Koezuka; M. Iwaseya; Lixing Dai;

  • 作者单位

    Faculty of Textile Science and Technology Shinshu University;

    Faculty of Textile Science and Technology Shinshu University;

    Faculty of Textile Science and Technology Shinshu University;

    Faculty of Textile Science and Technology Shinshu University;

    Department of Polymeric Materials College of Materials Engineering Soochow University;

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