铁凝胶导电理论
Theory of electrical conductivities of ferrogels
摘要：
导电有机聚合物可以与掺入精细分散的金属颗粒的聚合物一起配制。在这项工作中，我们提出了一个一般模型的铁凝胶是化学交联的聚合物网络与铁磁流体溶胀。我们的目的是研究的形状和/或材料（电导率）各向异性的铁凝胶在外部磁场的存在下的有效电导率的影响。我们的理论可以重现已知的结果，并提供了一个链接之间的颗粒的属性和取向分布和有效的电导率。为此，我们发现，材料（电导率）的各向异性是更重要的，以产生一个高的有效的电导率比形状各向异性，而磁场可以提供一个校正。
英文摘要：
Conductive organic polymers can be formulated with polymers that incorporate fine dispersed metallic particles. In this work, we present a general model for ferrogels which are chemically cross-linked polymer networks swollen with a ferrofluid. Our aim is to study the effect of the shape and/or material (conductivity) anisotropy on the effective electrical conductivity of the ferrogel in the presence of an external magnetic field. Our theory can reproduce the known results, and provides a link between the particle property and orientation distribution and the effective electrical conductivity. To this end, we find that material (conductivity) anisotropies are more important to yield a high effective electrical conductivity than shape anisotropies, while magnetic fields can offer a correction.
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