It is showed that heat deformation temperature is same as working temperature of cable; Vicat softening point is close to the switch temperature. Based on the observations, HDPE was choose to be the matrix of self-regulating heating cable.

• 认为材料的四川大学硕士学位论文:高密度聚乙烯/炭黑复合导电材料及制品的研究热变形温度与自控温伴热带的工作发热温度接近，维卡软化温度与制品开关温度相当，并由此确立了以HDPE为基体材料来开发80℃发热等级自控温伴热带。