Polymeric varistor based on PANI/ABS composite

In this work, we present a new class of materials with non-linear electrical behaviour: the Organic Polymeric Varistors. These devices were built using a conducting polymer, polyaniline, and a conventional low-cost dielectric polymer, acrylonitrile-butadiene-styrene copolymer. The apparatus has low-voltage varistor behaviour with a breakdown field of around 10 V, and a non-linear coefficient of 5.0. They also remain stable after several voltage-current cycles and its preparation procedure is easy and inexpensive.