用级沥青炭纤维与ABS树脂通过单螺杆挤出机共混后 ,于 40MPa、2 0 0℃下模压成型 ,所制复合材料的电阻率随材料中纤维填加量的增多而降低 ,材料的电流电压关系不满足欧姆定律所描述的线性关系 ,材料电阻随外加电压的增大而减小。经过 10 0 0V高电压处理后 ,材料电阻率下降 ,材料电流电压关系曲线的线性度提高。 Asphalt carbon fiber and ABS resin were blended by single screw extruder and then molded at 40MPa and 200 ℃. The electrical resistivity of the composite decreased with the increase of the amount of fiber in the material. The relationship between current and voltage does not satisfy the linear relationship described by Ohm’s law, and the material resistance decreases with the increase of applied voltage. After 10 0V high voltage processing, the material resistivity decreased, the linearity of the material current-voltage relationship curve increased.