• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on polymer physics : Preprints >NOVEL POLYURETHANE/CLAY NANOCOMPOSITES WITH ULTRAHIGH ELONGATION AND UNIQUE MICROSTRUCTURE AT ORGANIC-INORGANIC INTERFACE
【24h】

NOVEL POLYURETHANE/CLAY NANOCOMPOSITES WITH ULTRAHIGH ELONGATION AND UNIQUE MICROSTRUCTURE AT ORGANIC-INORGANIC INTERFACE

机译：新型的聚氨酯/粘土纳米复合材料，在有机-无机界面上具有超高伸长率和独特的微观结构

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

@@Polymer/clay nanocomposites exhibit unique physical and chemical properties typically not shared by their conventional macro- or micro-composite and have attracted much attention over the past decades. The final properties of nanocomposites are determined by the quality of the clay dispersion in the polymer matrix. Generally, inorganic filler addition in thermoplastic and thermosetting nanocomposites is accompanied by increased strength and stiffness at the expense of substantially reduced elongation at break. In this paper, a series of high-performance polyurethane (PU)/clay nanocomposites were prepared under mild and simple conditions, these novel nanocomposites exhibit ultrahigh elongation behavior without decrease of their strength. By using XRD and TEM techniques, the intercalation and exfoliation behavior of clay layers in these nanocomposites was verified. Especially, for the first time, an advanced solid-state NMR technique clearly reveals the presence of strong polymer-clay interaction and the unique microstructure at organic-inorganic interface which induces the ultrahigh elongation behavior of these nanocomposites. Alternatively, FTIR method was also used to study the influence of the clay sheets on the hydrogen bonding interaction in these nanocomposites. The correlations between the microstructure and mechanical properties of the prepared polyurethane/clay nanocomposites were then discussed.
机译：聚合物/粘土纳米复合材料表现出独特的物理和化学特性，通常它们的常规宏观或微观复合材料没有这些特性，并且在过去的几十年中引起了人们的极大关注。纳米复合材料的最终性能取决于聚合物基质中粘土分散体的质量。通常，在热塑性和热固性纳米复合材料中添加无机填料伴随着强度和刚度的增加，但以断裂伸长率的显着降低为代价。本文在温和简单的条件下制备了一系列高性能聚氨酯（PU）/粘土纳米复合材料，这些新型纳米复合材料表现出超高的伸长性能，而不会降低其强度。通过使用XRD和TEM技术，验证了这些纳米复合材料中粘土层的插层和剥落行为。特别是，第一次，先进的固态NMR技术清楚地揭示了强的聚合物-粘土相互作用的存在以及有机-无机界面处独特的微观结构，这引起了这些纳米复合材料的超高伸长行为。另外，FTIR方法还用于研究粘土片对这些纳米复合材料中氢键相互作用的影响。然后讨论了制备的聚氨酯/粘土纳米复合材料的微观结构与力学性能之间的相关性。

著录项

  • 来源
  • 会议地点 Xiamen(CN);Xiamen(CN)
  • 作者

    Jianjun Zhu; Tiehong Chen; Pingchuan Sun; Qinghua Jin; Datong Ding; An-Chang Shi;

  • 作者单位

    Key Laboratory of Functional Polymer Materials,Ministry of Education,College of Chemistry and College of Physics,Nankai University,Tianjin 300071,China;

    Key Laboratory of Functional Polymer Materials,Ministry of Education,College of Chemistry and College of Physics,Nankai University,Tianjin 300071,China;

    Key Laboratory of Functional Polymer Materials,Ministry of Education,College of Chemistry and College of Physics,Nankai University,Tianjin 300071,China;

    Key Laboratory of Functional Polymer Materials,Ministry of Education,College of Chemistry and College of Physics,Nankai University,Tianjin 300071,China;

    Key Laboratory of Functional Polymer Materials,Ministry of Education,College of Chemistry and College of Physics,Nankai University,Tianjin 300071,China;

    Department of Physics and Astronomy,McMa;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化学（高聚物）;
  • 关键词

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