• 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 >Effect of compatibilizer on micromehanical deformations and morphology of dispersion in PP/PDMS blend
【24h】

Effect of compatibilizer on micromehanical deformations and morphology of dispersion in PP/PDMS blend

机译：相容剂对PP / PDMS共混物中微机械变形和分散形态的影响

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

Role of maleic anhydride grafted polypropylene (PP-g-MAH) in interface modification in polypropylene (PP)/poly(dimethylsiloxane) (PDMS) elastomer blend has been investigated in this article through its effects on morphology of dispersion, micromechanical deformations such as voiding, crazing, shear yielding, fibrillation, and tensile behavior. During tensile deformation, PP/PDMS blend without the compatibilizer showed debonding at the elastomer-matrix interface and it induced shear yielding and subsequently fibrillation in the matrix. The compatibilizer improved the interfacial adhesion between the PDMS domains and PP matrix, which prevented the debonding at elastomer-matrix interface and the resulting shear yielding, and fibrillation was absent and rather caused extensive crazing in the matrix. Addition of PP-g-MAH reduced the size of dispersed PDMS domains, and narrowed the domain size distribution, which is attributed as an effect of interfacial adhesion produced by PP-g-MAH. Stress-strain curve and fibrillation also show similar effect of the interfacial adhesion caused by the compatibilizer. All these observations consistently lead to conclude that PP-g-MAH acts as a good compatibilizer for PP/PDMS blend. (C) 2007 Wiley Periodicals, Inc.
机译：本文研究了马来酸酐接枝聚丙烯（PP-g-MAH）在聚丙烯（PP）/聚（二甲基硅氧烷）（PDMS）弹性体共混物的界面改性中的作用，它对分散体的形态，微机械变形（例如空隙）有影响，开裂，剪切屈服，原纤化和拉伸行为。在拉伸变形过程中，不含增容剂的PP / PDMS共混物在弹性体-基体界面处表现出脱粘作用，并引起剪切屈服并随后在基体中产生原纤化。增容剂改善了PDMS域与PP基体之间的界面粘附力，从而阻止了弹性体-基体界面的剥离和剪切剪切屈服，并且没有原纤化，而是在基体中引起了广泛的开裂。 PP-g-MAH的添加减少了分散的PDMS域的大小，并缩小了域的大小分布，这归因于PP-g-MAH产生的界面粘附作用。应力-应变曲线和原纤化也显示出由增容剂引起的界面粘合的相似作用。所有这些观察结果一致得出结论，PP-g-MAH可作为PP / PDMS共混物的良好相容剂。 （C）2007 Wiley期刊公司

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