酞侧基聚芳醚酮的应力松弛与屈服行为的模型解析

SIMPLE MODELS FOR STRESS RELAXATION AND YIELD BEHAVIOUR OF PHENOLPHTHALEIN POLYETHER KETONE

根据不同温度下酞侧基聚芳醚酮（ＰＥＫ—Ｃ）的应力松弛曲线及时－温等效原理，得到了ＰＥＫ—Ｃ在任意参考温度下的总曲线．应用Ｋｏｈｌｒａｕｓｃｈ—Ｗｉｌｌｉａｍｓ－Ｗａｔｔｓ（ＫＷＷ）模型定量解释了应力松弛现象的温度依赖性，并通过ＫＷＷ模型建立了应力松弛现象与屈服行为间的相关性．

ccording to stress relaxation curves of phenolphthalein polyether ketone(PEK-C)at different temperatures and the principle of time-temperature equivalence equivalence,the master curve of PEK-C at arbitrary reference temperature is obtained A coupling model(Kohlrausch-Williams-Watts(KWW)is applied to explain quantitatively stress relaxation behaviour's different temperature dependence and the relationship between stress shress relaxation and yield behaviour is established through coupling model.