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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Polymer Composites with Graphene Nanofillers: Electrical Properties and Applications
Polymer Composites with Graphene Nanofillers: Electrical Properties and Applications
Subject
:
physics
Document Language
:
English
Abstract
:
Graphene with extraordinary high elastic modulus and excellent electrical conductivity has good prospects for use as the filler material for fabricating novel polymer composites designed for electrostatic discharge and EMI shielding protection, field emission, gas sensor, and fuel cell applications. Large amounts of graphene oxide (GO) can be obtained by wet chemical oxidation of graphite into a mixture of concentrated sulfuric acid, sodium nitrate and potassium permanganate. Accordingly, carbon atoms in the basal plane and edges of GO are decorated with oxygenated functional groups, forming an electrical insulator. To restore electrical conductivity, chemical reduction or thermal annealing is needed to eliminate oxygenated groups of GO. However, such treatments induce internal defects and remove oxygenated atoms of GO partially. The remnant-oxygenated groups affect electrical conductivity of graphene greatly. Nevertheless, reduced graphene oxide and thermally reduced graphene oxide are sufficiently conductive to form polymer nanocomposites at very low percolation threshold. This review provides the fundamentals and state-of-the-art developments in the fabrication methods and electrical property characterizations as well as the applications of novel graphene/polymer nanocomposites. Particular attention is paid to their processing-structural-electrical property relationships.
ISSN
:
1533-4880
Journal Name
:
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume
:
14
Issue Number
:
2
Publishing Year
:
1435 AH
2014 AD
Article Type
:
Article
Added Date
:
Wednesday, August 2, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
Sie Chin Tjong
Tjong, Sie Chin
Investigator
Doctorate
Files
File Name
Type
Description
42432.pdf
pdf
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