...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of materials science >Studies on thermal stability and life estimation of epoxy adhesive by thermogravimetric analysis for high-temperature applications
【24h】

Studies on thermal stability and life estimation of epoxy adhesive by thermogravimetric analysis for high-temperature applications

机译：高温应用热重分析热稳定性和寿命估算研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Structural epoxy adhesive was investigated for its thermal stability and degradation behaviour in a thermooxidative environment by thermogravimetry analysis (TGA). Non-isothermal TGA was performed at temperatures between30 and 600$^{circ}$C utilizing different heating rates. The ageing characteristics of material were determined by an accelerated ageing study using isothermal TGA at different temperatures for 5% threshold conversion. The activation energies from both non-isothermal TGA and isothermal TGA were estimated and the activation energy values for 5% degradation from both the methods were in good agreement. The epoxy adhesive with titanium dioxide as filler showed a shelf life exceeding 13 years at ambient conditions (27$^{circ}$C). Additionally, the lap shear strength of the adhesive joint was also tested after treating thesamples at 70$^{circ}$C with 90% relative humidity to evaluate the hydrothermal effect on adhesive joint.
机译：通过热重试探（TGA）研究了在热氧化环境中的热稳定性和降解行为的结构环氧粘合剂。使用不同的加热速率在30至600美元的温度下进行非等温TGA。通过在不同温度下使用等温TGA的加速老化研究来确定材料的老化特征，以进行5％阈值转化。估计来自非等温TGA和等温TGA的激活能量，并且从两种方法中的5％降解的激活能量值良好。与二氧化钛作为填料的环氧粘合剂显示出在环境条件下超过13年的保质期（27美元^ { rIN} $ c）。另外，在70美元^ {循环} C的粘合剂中，还测试了粘合剂接头的搭接剪切强度，以90％的相对湿度，以评估粘合剂接头的水热效应。

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