Influence of Surface Modified MWCNTs on the Mechanical, Electrical and Thermal Properties of Polyimide Nanocomposites

Polyamic acid, the precursor of polyimide, was used for the preparation of polyimide/multiwalled carbon nanotubes (MWCNTs) nanocomposite films by solvent casting technique. In order to enhance the chemical compatibility between polyimide matrix and MWCNTs, the latter was surface modified by incorpor...

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Veröffentlicht in:	Nanoscale research letters 2008-11, Vol.3 (11), p.444-453, Article 444
Hauptverfasser:	Singh, BP, Singh, Deepankar, Mathur, RB, Dhami, TL
Format:	Artikel
Sprache:	eng
Schlagworte:	Acids Chemical compatibility Chemical treatment Chemistry and Materials Science Electrical conductivity Electrical resistivity Materials Science Mechanical properties Modulus of elasticity Molecular Medicine Multi wall carbon nanotubes Nano Express Nanochemistry Nanocomposites Nanoscale Science and Technology Nanotechnology Nanotechnology and Microengineering Nanotubes Nitric acid Tensile strength Thermal properties Thermal stability Thermodynamic properties
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Zusammenfassung:	Polyamic acid, the precursor of polyimide, was used for the preparation of polyimide/multiwalled carbon nanotubes (MWCNTs) nanocomposite films by solvent casting technique. In order to enhance the chemical compatibility between polyimide matrix and MWCNTs, the latter was surface modified by incorporating acidic and amide groups by chemical treatment with nitric acid and octadecylamine (C 18 H 39 N), respectively. While the amide-MWCNT/polyimide composite shows higher mechanical properties at low loadings (
ISSN:	1556-276X 1931-7573 1556-276X
DOI:	10.1007/s11671-008-9179-4