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Crystallization and molecular dynamics of ethylene-vinyl acetate copolymer/butyl rubber blends

机译:乙烯 - 乙酸乙烯酯共聚物/丁基橡胶共混物的结晶及分子动力学

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摘要

In this article, butyl rubber (IIR) was blended with ethylene-vinyl acetate copolymer (EVA) through a molten method. The crystal structure, morphology, crystallization and segmental dynamics were characterized. The crystal structure test indicated that IIR had no influence on the crystal form of EVA. Furthermore, the morphology showed that the blends changed from sea-island to a co-continuous structure. Moreover, the non-isothermal crystallization kinetics given by Mo's model showed that the rate of crystallization became fast as the content of EVA increased. In addition, the segmental dynamics characterization illustrated that EVA suppressed the molecular motions of IIR to a different degree. Longer units were more influenced than shorter units. It was also found that both crystallization and molecular dynamics had a close relationship with the morphology.
机译:在本文中,通过熔融的方法将丁基橡胶(IIR)与乙烯 - 乙酸乙烯酯共聚物(EVA)混合。 表征了晶体结构,形态,结晶和分段动力学。 晶体结构试验表明IIR对EVA的晶体形式没有影响。 此外,形态表明,共混物从海岛变为连续结构。 此外,MO模型给出的非等温结晶动力学表明,随着EVA含量的增加,结晶速率变得快速。 此外,节门动力学表征所示,EVA抑制了IIR的分子运动到不同程度。 较长的单位比较短的单位更长。 还发现结晶和分子动力学均与形态密切相关。

著录项

  • 来源
    《RSC Advances》 |2015年第1期|共6页
  • 作者

    Zhang Rui; He Xianru;

  • 作者单位

    Southwest Petr Univ State Key Lab Oil &

    Gas Reservior Geol &

    Exploita Chengdu 610500 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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