Conductivity of carbon black-based polymer composites under creep in the molten state
Conductivity of carbon black-based polymer composites under creep in the molten state
复制标题
炭黑基聚合物复合材料熔融态蠕变电导率
DOI：
10.1016/j.polymer.2014.06.047
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发表时间：
2014
期刊：
影响因子：
4.6
通讯作者：
Stary Z„ Krückel J„ Schubert D.W.
中科院分区：
文献类型：
--
作者：
Stary Z„ Krückel J„ Schubert D.W.
导电聚合物复合材料在熔体加工过程中的力学变形对其最终电性能影响很大。为了深入了解这种关系，可以使用同步电流变测量来跟踪由定义变形引起的复合相结构的变化。在这项工作中，研究了恒定应力下剪切变形期间和之后的电导率演变。从实验中可以得出结论，与静态条件下的结构积聚相比，流动诱导的积聚机制导致导电通道的形成具有更高的稳定性。这一发现可以用颗粒结构在剪切方向上的取向来解释。因此，具有不同变形历史但电导率相同的材料在变形作用下的电性能会有显著差异。
The mechanical deformation of conductive polymer composites during melt processing affects their final electrical properties considerably. To get an insight in this relationship, simultaneous electrical-rheological measurements can be used to follow the changes in composite phase structure induced by defined deformation. In this work, the evolution of electrical conductivity was investigated during and after shear deformation at constant stress. From the experiments performed it can be concluded, that the flow-induced build-up mechanism leads to the formation of conductive pathways with enhanced stability compared to the structures build-up under quiescent conditions. This finding can be explained by the orientation of particle structures in the shear direction. Therefore, materials with different deformation history but the same electrical conductivity can display markedly different electrical behaviour under deformation.
影响因子：
3.3
作者：
Triebel, Christian;Katsikis, Nikolaos;Muenstedt, Helmut
通讯作者：
Muenstedt, Helmut
炭黑填充聚甲基丙烯酸甲酯剪切前后动态渗流行为的理论与实验研究——三相新方法
影响因子：
6
作者：
Krückel J;Schubert D.W.
通讯作者：
Schubert D.W.