• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Electrical Electronics Insulation Conference, 1989. Chicago '89 EEIC/ICWA Exposition., Proceedings of the 19th >Evaluation of a method for the determination of optimal curing conditions for unsaturated polyesters
【24h】

Evaluation of a method for the determination of optimal curing conditions for unsaturated polyesters

机译：确定不饱和聚酯最佳固化条件的方法的评价

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

摘要

By measuring the residual enthalpy of curing of a partially cured unsaturated polyester resin, it is possible to determine the degree of curing. This method has the advantage of directly measuring the chemical process of curing itself and not a secondary property dependent on the degree of curing. Due to the complexity of the reaction, it is not possible to calculate the conditions for an optimal curing. Use of a DSC (differential scanning calorimetry) oven with its precise temperature setting allows complicated curing cycles to be simulated. At any point of the heating curve, the residual enthalpy of curing can be measured and the progress of curing can be monitored. It is also shown that there are differences in the resin systems according to the nature of the initiating radicals, especially with respect to the possibility of interrupting the curing process and starting it again when using C-C-unstable initiators.
机译：通过测量部分固化的不饱和聚酯树脂的固化残余焓，可以确定固化程度。该方法的优点是直接测量固化本身的化学过程，而没有依赖于固化程度的第二性质。由于反应的复杂性，不可能计算出最佳固化条件。使用具有精确温度设置的DSC（差示扫描量热法）烤箱可以模拟复杂的固化周期。在加热曲线的任何一点，都可以测量残留的固化焓，并可以监测固化进度。还表明，根据引发自由基的性质，在树脂体系中存在差异，特别是在使用C-C不稳定引发剂时中断固化过程并再次开始固化过程的可能性方面。

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