The result of DSC shows that the switch temperature of PU/CB/organic crystal composites is accord with the melting point of organic crystal and can be controlled by controlling the melting point of organic crystals.

• 用DSC测试结果表明，聚氨酯/炭黑/有机晶体复合体系的PTC开关温度与有机晶体的熔点基本一致，可以通过控制加入的有机晶体的熔点来控制复合体系的PTC开关温度。