Electrical Properties of Polymer Composites

Dear Colleagues,

Polymer composites are materials composed of a polymer matrix reinforced with filler materials like particles, fibers, or flakes, offering a diverse range of electrical properties. Depending on the filler type and concentration, these composites can exhibit either conductivity or insulation characteristics. Conductivity is achieved by integrating conductive fillers such as carbon nanotubes, graphene, or metal particles. Adjustability in the dielectric constant and the dielectric loss of composites is vital for applications in capacitors and electronic devices. Enhanced breakdown strength, crucial for insulation, is attainable through filler addition. Certain composites show piezoresistive behavior, modifying electrical resistance under mechanical stress; this also proves useful for sensing applications. Furthermore, the electrical properties of these composites can fluctuate with temperature changes, impacting the charge carrier mobility and overall conductivity. Understanding and customizing these properties facilitates the optimization of polymer composites for various electrical applications, ranging from electronics to energy storage and sensing technologies. Overall, the electrical properties of polymer composites can be tailored to meet specific application requirements by carefully selecting the composition, structure, and processing conditions of the materials

Dr. Yang Yu
Guest Editor

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