研究了偶联剂对高分子正温度系数 (ＰＴＣ)材料性能的影响 ,发现Ｊ1、Ｊ2在中低温时有较好的分散效果 ,但高温时较差 ;耐高温的偶联剂Ｊ3在高温时有更好的分散效果 ,从而使高分子ＰＴＣ材料有较好的高温性能 ,但在中低温时稳定性较差 .另外 ,辐照交联可以很好地增加材料的ＰＴ The effect of coupling agent on the properties of polymer PTC was studied. It was found that J1 and J2 had better dispersion effect at low temperature but lower temperature at high temperature. When high temperature coupling agent J3 was used at high temperature Have a better dispersion effect, so that the polymer PTC materials have better high temperature performance, but in the low temperature stability is poor.In addition, radiation crosslinking can be a good way to increase the material PT