PS/PA6/CB共混体系导电性能研究

STUDY ON CONDUCTIVITY OF PS/PA6/CB BLEND

在哈克流变仪中将炭黑（CB）与聚苯乙烯（PS）、尼龙6（PA6）共混，研究了CB在PS／PA6／CB共混体系中的分散情况及CB含量和PS与PA6的质量比对PS／PA6／CB共混体系导电性能、微观形态的影响。结果表明，CB在PS／PA6／CB共混体系中只分散在PA6中；PS／PA6／CB共混体系的导电性能随着CB含量的增加而增强，CB的体积分数在20％-40％时，PS／PA6／CB共混体系的电导率增幅明显；PS、PA6两相的微观尺寸随CB含量增加而变小；PS／PA6／CB共混体系中PS与PA6质量比约为80／20时，PS／PA6／CB共混体系的导电性能最好。

Polystyrene （ PS）, nylon 6 （PA6） and carbon black （CB） are blended in Haake blender. The dispersion of CB in PS/PA6/CB blend and the effects of content of CB and mass ratio of PS to PA6 on the conductivity and morphology of PS/PA6/CB blend are studied. The results show that CB is dispersed in PA6 phase in PS/PA6/CB blend; the conductivity of PS/PA6/CB blend gets better with CB content increasing, especially when the volume fraction of CB is 20% -40% ; the microcosmic sizes of PS and PA6 phases turn small when CB content increases; the conductivity of PS/PA6/CB blend is the best when the mass ratio of PS to PA6 is about 80/20.