CONDUCTIVITY IN WHITE FILLED SILICONE RUBBER

Abstract

The main objective of this review is to describe some of the important topics related to the use of silicone rubber for electrical
conductivity purpose. The review aims at providing a thorough picture of state-of-the-art in improving electrical conductivity
property in silicone rubbers. The properties of di-electric constant and volume resistivity of the polymer as well as the fillers play
an important role in deciding the electrical conductivity properties. The purpose of using these inorganic fillers to get a coloured
object other than that of black colour which can be used as an electrically conductive device.
Also certain disadvantages of carbon black are discussed in the review which is not desirable in many applications and it proves
to be carcinogenic to human health. So inorganic/white fillers are taken as an alternative to make silicone rubbers conductive
equally as carbon black. The values of volume resistivities of various inorganic fillers are discussed and compared among each
other. If the filler gives lower volume resistivity it gives higher electrical conductivity as volume resistivity is inversely
proportional to electrical conductivity.