研究了具有不同粒子形态的无机填料（球形的纳米二氧化硅、片状的滑石粉和纤维状的玻璃纤维）,以及不同粒径的碳酸钙（纳米碳酸钙、超细碳酸钙）对聚氯乙烯（PVC）/氯化聚乙烯（CPE）/导电炭黑（CB）复合材料导电性能的影响。电性能测试和扫描电镜形态结构分析结果表明,添加纤维状填料比球形和片状填料更有利于复合材料导电性能的保持;粒径较小的纳米碳酸钙对复合材料的导电性能影响较小。当炭黑含量为12phr时,添加15phr纳米碳酸钙后复合材料的电阻率仅为6.04×106Ω.cm。
In order to study the influence of particle shape and size of inorganic fillers on the conductive property of poly （ vinyl chloride）/chlorinated polyethylene/carbon black （PVC/CPE/CB） composites, SiO2 （spherical）, talc （flake）, glass fiber （fiber）, nano-CaCO3 and ordinary CaCO3 were adopted to prepare PVC/CPE/CB/filler composites, and the conductive properties and morphological structure of these composites were studied. The experimental results reveal that compared with the spherical and flake filler, the addition of fiber filler is in favour of maintaining conductive properties of PVC/CPE/CB/filler composites, and nano-CaCO3 have l~ss impact on the PVC/ CPE,CB/filler composites. When the CB content is 12phr and the nano-CaCO3 content is 15phr, the volume resistivity of PVC/CPE/CB/nano-CaCO3 composites is 6.04×106Ω.cm.
参考文献
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