高聚物材料在受力形变过程中,环境温度对材料力学性能影响很大,但形变过程自身产生的热效应有时也不能被忽略。当材料样品足够厚或形变速率足够快,即近似绝热的情况下,通过这些热效应特征可获得材料分子聚集结构的信息和材料形变机理。本文介绍了高聚物材料的几种形变热效应特征,包括普弹形变热效应、塑性形变热效应、弹性大形变热效应和疲劳热效应,并简单介绍了形变热效应的表征技术,包括形变量热法、热电偶法和红外热成像法。 During the deformation process of polymer materials, ambient temperature has a great influence on the mechanical properties of the material, but the thermal effects of the deformation process itself can not sometimes be neglected. When the material sample is thick enough or the rate of deformation is fast enough, ie approximately adiabatic, information on the molecular structure of the material and deformation mechanism of the material are obtained by these thermal effects. In this paper, several thermal deformation characteristics of polymer materials are introduced, including projectile thermal effect, plastic deformation thermal effect, elastic deformation thermal effect and fatigue thermal effect. The characterization of deformation thermal effect is briefly introduced, including deformation calorimetry, thermocouple Law and infrared thermography.