• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced materials for optics and electronics >Self-Healing of an Epoxy Resin Using Scandium(lll) Triflate as a Catalytic Curing Agent
【24h】

Self-Healing of an Epoxy Resin Using Scandium(lll) Triflate as a Catalytic Curing Agent

机译：使用三氟甲磺酸Scan（III）作为催化固化剂的环氧树脂的自修复

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

A novel Lewis acid-catalysed self-healing system is investigated for implementation into epoxy-based fibre reinforced polymer (FRP) composite materials. The catalyst, scandium(lll) triflate, is selected using a qualitative approach and subsequently embedded with pre-synthesised epoxy-solvent loaded microcapsules, into an epoxy resin. Healing is initiated when micro-capsules are ruptured at the onset of crack propagation. The epoxy monomer healing agent contained within actively undergoes ring-opening polymerisation (ROP) on contact with the locally dispersed catalyst, forming a new polymer to bridge the two fractured crack planes. Self-healing performance is quantified using a tapered double cantilever beam (TDCB) test specimen and the effects of microcapsule content and healing temperature and time are all independently considered. As an initial 'proof of concept' study, results show that a material recovery value of greater than 80% fracture strength is achieved for this novel Lewis acid-catalysed self-healing epoxy resin.
机译：研究了一种新型的路易斯酸催化的自修复系统，可用于环氧基纤维增强聚合物（FRP）复合材料中。使用定性方法选择催化剂三氟甲磺酸（（III），然后将其与预先合成的负载有环氧溶剂的微胶囊包埋到环氧树脂中。当微囊在裂纹扩展开始时破裂时，就会开始愈合。包含在其中的环氧单体愈合剂在与局部分散的催化剂接触时会主动进行开环聚合（ROP），从而形成一种新的聚合物来桥接两个断裂的裂纹平面。使用锥形双悬臂梁（TDCB）测试样品对自我修复性能进行了量化，并且微囊含量，愈合温度和时间的影响均独立考虑。作为最初的“概念验证”研究，结果表明，这种新型路易斯酸催化的自修复环氧树脂的材料恢复值达到80％以上的断裂强度。

著录项

  • 来源
    《Advanced materials for optics and electronics》 |2011年第24期|p.4624-4631|共8页
  • 作者

    Tim S. Coope; Ulrich F. J. Mayer; Duncan F. Wass; Richard S. Trask; Ian P. Bond;

  • 作者单位

    Advanced Composite Centre for Innovation and Science (ACCIS) Department of Aerospace Engineering University of Bristol Queen's Building, University Walk, Bristol, BS8 1TR, UK;

    School of Chemistry University of Bristol Cantock's Close, Bristol, BS8 ITS, UK;

    School of Chemistry University of Bristol Cantock's Close, Bristol, BS8 ITS, UK;

    Advanced Composite Centre for Innovation and Science (ACCIS) Department of Aerospace Engineering University of Bristol Queen's Building, University Walk, Bristol, BS8 1TR, UK;

    Advanced Composite Centre for Innovation and Science (ACCIS) Department of Aerospace Engineering University of Bristol Queen's Building, University Walk, Bristol, BS8 1TR, UK;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 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