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首页> 外文期刊>Journal of Applied Polymer Science >Design of sandwich structure conductive polypropylene/styrene-butadiene-styrene triblock copolymer/carbon black composites with inherent morphological tunability
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Design of sandwich structure conductive polypropylene/styrene-butadiene-styrene triblock copolymer/carbon black composites with inherent morphological tunability

机译：夹层结构导电聚丙烯/苯乙烯 - 丁二烯 - 苯乙烯三嵌段共聚物/炭黑复合材料具有固有的形态可调性

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摘要

The insulator-conductor transition of conductive polymer composites (CPCs) can be ascribed to the fabrication of conductive networks, and the morphology of conductive networks plays a significant role in the electrical conductivity. This study presents CPCs with inherent morphology tunability which can be controlled by kinetic methods (i.e., mixing procedures and sequences, and polymer melt viscosity). Polypropylene (PP)/styrene-butadiene-styrene block copolymer (SBS) (50/50, in volume)/10 phr (parts per hundred of the polymer matrix) conductive carbon black (CB) composites prepared by different compounding sequences (PP/CB composites mixed with SBS, SBS/CB composites mixed with PP, and PP/SBS blend mixed with CB) are named as PC10S, SC10P, and PSC10. With the difference between the phase morphologies, distribution, and dispersion of CB, the PP/SBS/CB composites realize seven orders of magnitude difference in resistivity. The volume resistivity (rho(v)) of PC10S SC10P and PSC10 are 1.57 x 10(1), 1.68 x 10(2), and 4.88 x 10(8) omega m, respectively.
机译：导电聚合物复合材料（CPC）的绝缘体-导体转变可归因于导电网络的制备，而导电网络的形态在导电性中起着重要作用。本研究提出了具有固有形态可调性的CPC，其可通过动力学方法（即混合程序和顺序，以及聚合物熔体粘度）进行控制。聚丙烯（PP）/苯乙烯-丁二烯-苯乙烯嵌段共聚物（SBS）（体积比为50/50）/10份（聚合物基体的百分含量）导电炭黑（CB）复合材料由不同的复合顺序（PP/CB复合材料与SBS混合，SBS/CB复合材料与PP混合，PP/SBS共混物与CB混合）制备而成，命名为PC10S、SC10P和PSC10。由于炭黑的相形态、分布和分散性不同，PP/SBS/CB复合材料的电阻率相差七个数量级。PC10S-SC10P和PSC10的体积电阻率（rho（v））分别为1.57×10（1）、1.68×10（2）和4.88×10（8）Ωm。

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