炭黑填充PET/PE共混物导电性能的研究

Studies on Electrical Behaviour of Carbon Black Filled PET/PE Blend

将经偶联剂处理后的炭黑分别与聚酯、聚乙烯及聚酯/聚乙烯共混聚合物,通过双螺杆熔融共混,制备了纤维级导电母粒。研究了炭黑在聚酯/聚乙烯共混聚合物中的分布情况,讨论了共混聚合物对母粒导电性能和纤维力学性能的影响。结果表明,以聚酯/聚乙烯共混聚合物代替单一的聚合物作为母粒的载体树脂可用来设计具有低突增界限浓度的炭黑导电母粒。

Carbon black （CB） was pre-treated by titanate coupling agent and electrical conductive master batche （ECMB） for fiber were prepared by melt-extruding pre-treated CB with PET, PE and PET/PE blend. The distribution of CB in PET/PE blend was studied and the effect of the polymer blend on the electrical property of ECMB and the mechanical properties of the fibers were analyzed. The results showed that the replacement of individual polymer by polymer blend as the matrix resin for ECMB could be applied to the design of ECMB with lower percolation threshold concentration.