• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Influence of morphology on rheological and mechanical properties of SEBS-toughened, glass-bead-filled isotactic polypropene
【24h】

Influence of morphology on rheological and mechanical properties of SEBS-toughened, glass-bead-filled isotactic polypropene

机译：形态对SEBS增韧的玻璃珠填充等规聚丙烯的流变和力学性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The influence of morphology of glass-bead-filled isotactic polypropene containing 0-20 vol% thermoplastic elastomers (TPE) on mechanical and rheological properties was investigated. Polystyrene-bloch-poly( ethene-co-but-l-ene)-block-polystyrene (SEBS) and the corresponding block copolymer grafted with maleic anhydrid (SEBS-g-MA) were used as thermoplastic elastomers, realizing, in the first case, a three-phase morphology with separately dispersed glass beads and SEES particles. In the second case, SEBS-g-MA forms an elastomeric interlayer between glass beads and polypropene matrix, comprising core-shell particles. Young's modulus and tensile yield stress of the hybrid composites decrease with an increase in TPE volume fraction due to low stiffness and strength of TPE. In comparison with the three-phase morphology of hybrid composites with SEES, SEBS-g-MA interlayers effect? reduced stiffness of the hybrid composites but improve interfacial adhesion and, thus, tensile yield stress. Rheological storage and loss moduli increase with an increase in glass bead and TPE volume fraction. Due to improved interfacial adhesion, melt elasticity and viscosity are enhanced by the SEBS-g-MA interlayer when compared with separately dispersed SEES. Consequently, the reduced stiffening effect of the glass beads due to SEBS-g-MA interlayer decreases mechanical elasticity, whereas improved interfacial adhesion, also promoted by the SEBS-g-MA. interlayer, enhances tensile yield stress and melt elasticity. (C) 1998 John Wiley & Sons, Inc. [References: 14]
机译：研究了含有0-20％（体积）热塑性弹性体（TPE）的玻璃珠填充的全同立构聚丙烯的形态对力学和流变性能的影响。聚苯乙烯-嵌段-聚（乙烯-共-丁-1-烯）-嵌段-聚苯乙烯（SEBS）和接枝马来酸酐的相应嵌段共聚物（SEBS-g-MA）被用作热塑性弹性体，首先实现了在这种情况下，玻璃珠和SEES颗粒分别分散在一个三相形态中。在第二种情况下，SEBS-g-MA在玻璃珠和包含核-壳颗粒的聚丙烯基质之间形成弹性体中间层。杂化复合材料的杨氏模量和拉伸屈服应力随着TPE体积分数的增加而降低，这归因于TPE的低刚度和强度。与具有SEES的杂化复合材料的三相形态相比，SEBS-g-MA中间层的作用如何？降低了杂化复合材料的刚度，但改善了界面粘合性，从而改善了拉伸屈服应力。流变存储和损耗模量随玻璃珠和TPE体积分数的增加而增加。与单独分散的SEES相比，由于改善了界面粘合性，SEBS-g-MA中间层提高了熔体弹性和粘度。因此，由于SEBS-g-MA中间层而降低的玻璃珠的硬化效果降低了机械弹性，而SEBS-g-MA也促进了界面粘合性的提高。中间层，可提高拉伸屈服应力和熔体弹性。 （C）1998 John Wiley＆Sons，Inc. [参考：14]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号