摘要
目前,导电高分子无法像塑料一样大规模地加工成型.本文提出了利用经典的塑料成型方法,通过镓锡半液态合金来生产具有与金属相近导电率(>106S m-1)的导电塑料.分子模拟和流变实验都表明,制备这种高导电塑料的关键在于利用半液态金属和高分子之间的粘度匹配,从而实现金属和聚合物的双连续结构.这种高导电塑料可成功适用于高分子材料的传统工业化加工(如注塑成型、薄膜拉伸和纤维纺丝).
The electrically conductive polymers currently used cannot be industrially processed like plastics. Here, we reported a strategy of producing a polymer composition with tin-gallium semi-liquid alloy for plastic molding to produce conductive plastic parts with metallic conductivity(>106S m-1). Molecular modeling and rheological experiments demonstrated that the key to successful processing was the viscosity matching between polymers and semi-liquid metals to achieve a bicontinuous structure. Our approach shows promise for the conventional industrial processing of polymer materials, such as those used for injection molding, film stretching, and fiber spinning.
作者
彭豪
罗文
彭燕
陈咏萱
张久洋
胡文兵
Hao Peng;Wen Luo;Yan Peng;Yongxuan Chen;Jiuyang Zhang;Wenbing Hu(School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China;Department of Polymer Science and Engineering,School of Chemistry and Chemical Engineering,State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093,China)
基金
supported by the National Natural Science Foundation of China(21734005,52173249,and 21774020).
