本发明属于导电复合材料技术领域。本发明提供了一种导电复合材料的制备方法,包括如下步骤：(1)将乙烯共聚物、功能性粉体和溶剂在60～120℃混合,得到原料混合物；所述功能性粉体包括导电粉体；(2)将所述原料混合物经剪切搅拌,得到均质化固态混合物；(3)将所述均质化固态混合物成型,然后去除溶剂,得到导电复合材料。本发明提供的制备方法,可有效提高功能性粉体的用量,功能性粉体的用量可达50％以上(功能性粉体占导电复合材料的质量百分数)；同时,本发明所得产品还具有优异的耐变形性,经5000次弯曲后电阻基本不变。

The invention belongs to the technical field of conductive composite materials, and provides a preparation method of a conductive composite material, which comprises the following steps of: (1) mixing an ethylene copolymer, functional powder and a solvent at a temperature of 60-120 DEG C to obtain a raw material mixture; wherein the functional powder comprises conductive powder; (2) shearing and stirring the raw material mixture to obtain a homogenized solid mixture; (3) molding the homogenized solid mixture, and then removing the solvent to obtain the conductive composite material. The preparation method can effectively improve the dosage of the functional powder, and the dosage of the functional powder can reach more than 50% (the mass percent of the functional powder accounting for of the conductive composite material); meanwhile, the obtained product also has excellent deformation resistance, and the resistance is basically unchanged after secondary bending.