Article | REF: E1850 V4

Dielectric properties of polymers

Author: Jean-Marc BUREAU

Publication date: February 10, 2016, Review date: November 2, 2020

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2. Resistivity

2.1 Definitions

Since dielectric polymers are mainly used as insulators, they must have good resistivity. It is therefore important to understand the conductivity mechanisms that may be involved, and to predict the effects of various factors such as temperature variations or the presence of impurities.

A distinction is made between the transverse resistivity ρ, which is defined by the relationship :

ρ = R S/e

with :

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