• 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 >Effects of Prior Aging at 288 degrees C in Argon Environment on Time-Dependent Deformation Behavior of a Thermoset Polymer at Elevated Temperature, Part 1: Experiments
【24h】

Effects of Prior Aging at 288 degrees C in Argon Environment on Time-Dependent Deformation Behavior of a Thermoset Polymer at Elevated Temperature, Part 1: Experiments

机译：在氩气环境中在288摄氏度下预先老化对热固性聚合物在高温下随时间变化的变形行为的影响，第1部分：实验

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

The inelastic deformation behavior of PMR-15 neat resin, a high-temperature thermoset polymer, aged at 288 degrees C in argon environment for up to 2000 h was investigated. The experimental program was designed to explore the influence of prior isothermal aging on monotonic loading and unloading at various strain rates. In addition, the relaxation response and the creep behavior of specimens subjected to prior aging of various durations were evaluated. All tests were performed at 288 degrees C. The time-dependent mechanical behavior of the PMR-15 polymer is strongly influenced by prior isothermal aging. The elastic modulus increased and the departure from quasi-linear behavior was delayed with prior aging time. Stress levels in the region of inelastic flow increased with prior aging time. Furthermore, prior aging significantly decreased the polymer's capacity for inelastic straining, including the material's capacity to accumulate creep strain. Conversely, the relaxation response was not affected by the prior aging.
机译：研究了高温下热固性聚合物PMR-15净树脂在288℃，氩气环境中老化2000 h的非弹性变形行为。设计该实验程序，以探索先前的等温老化对各种应变速率下单调加载和卸载的影响。此外，还评估了在不同持续时间下经过预先老化的试样的松弛响应和蠕变行为。所有测试均在288摄氏度下进行。PMR-15聚合物随时间变化的机械性能受到先前等温老化的强烈影响。随着之前的老化时间，弹性模量增加并且偏离准线性行为被延迟。非弹性流动区域的应力水平随先前的老化时间而增加。此外，先前的老化显着降低了聚合物的非弹性应变能力，包括材料的累积蠕变应变能力。相反，松弛响应不受先前老化的影响。

著录项

相似文献

  • 外文文献
  • 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