Dielectric Properties and Electromagnetic Behaviour of Pan/Nmpy Conductive Composites
Keywords:
Conductive polymers, dielectric spectroscopy, electromagnetic interference, shielding effectiveness.Abstract
Nowadays, because the synthesis of new materials
is a very active field of research and industrial development, the
different types of materials available for electromagnetic
shielding structures is always increasing. Conducting polymers
exhibit excellent electrical, electrochemical and optical
properties; however the common usage of these materials has
been restricted due to their poor processability and stability.
Polyacrylonitrile (PAN) is an outstanding engineering material
used in many applications owing to its good mechanical and
thermal properties and its low cost [1].
of
This paper investigates the dielectric and electromagnetic
behavior
polyacrilonitrile
composites
thin
films.
Polyacrylonitrile/N-Methyl-Pyrrole composite thin films were
prepared by polymerization of pyrrole on polyacrylonitrile
matrix. Different concentrations of n-methyl-pyrrole were
added to the polyacrylonitrile/dimethylformamide solution to
achieve polymerization of pyrrole. The amount of n-methyl
pyrrole was varied in order to investigate the influence of the
concentration on the dielectric and also on electromagnetic
properties in special electromagnetic shielding of the composite
polymer.
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