丙烯腈-丁二烯-苯乙烯三元共聚物/碳纳米管复合材料电磁性能的初步研究

Primary Study on Electromagnetic Property of Acrylonitrile-butadiene-styrene Terpolymer/Carbon Nanotubes Composites

通过紫外光辐照制备了丙烯腈-丁二烯-苯乙烯三元共聚物脓纳米管（ABS／CNTs）复合材料。在CNTs的质量分数为5％时，复合材料体积电阻率（ρv）比基体树脂下降了10^7Ω·cm。在20～100℃温度范围内，复合材料的ρv受温度影响不大。扫描电镜观察表明：紫外光辐照下的CNTs在ABS基体中均匀分布，容易形成导电网络。复合材料在2～10GHz的微波频段内，具有较宽的介电损耗（约为21-50）。

Composites of acrylonitrile-butadiene-styrene terpolymer/carbon nanotubes（ABS/CNTs） were fabricated using a method of ultraviolet （UV） irradiation. When 5 % CNTs was introduced into neat ABS, the volume resistivity decreased by 10^7Ω·cm, which kept stable in the temperatures between 20 and 100 ℃. SEM showed that the CNT was uniformly dispersed in ABS and a conductive network was generated. In the 2-- 10 GHz microwave range, the dielectric loss factor of the composites was between 21 and 50.