Ag induced electromagnetic interference shielding of Ag-graphite/PVDF flexible nanocomposites thinfilms
- Polymer Composite Laboratory, Department of Chemical Engineering, Anna University, Chennai 600 025 (India)
- Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600036 (India)
We report Ag nanoparticle induced Electromagnetic Interference (EMI) shielding in a flexible composite films of Ag nanoparticles incorporated graphite/poly-vinylidene difluoride (PVDF). PVDF nanocomposite thin-films were synthesized by intercalating Ag in Graphite (GIC) followed by dispersing GIC in PVDF. The X-ray diffraction analysis and the high-resolution transmission electron microscope clearly dictate the microstructure of silver nanoparticles in graphite intercalated composite of PVDF matrix. The conductivity values of nanocomposites are increased upto 2.5 times when compared to neat PVDF having a value of 2.70 S/cm at 1 MHz. The presence of Ag broadly enhanced the dielectric constant and lowers the dielectric loss of PVDF matrix proportional to Ag content. The EMI shielding effectiveness of the composites is 29.1 dB at 12.4 GHz for the sample having 5 wt. % Ag and 10 wt. % graphite in PVDF.
- OSTI ID:
- 22482096
- Journal Information:
- Applied Physics Letters, Vol. 107, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CLATHRATES
DIELECTRIC MATERIALS
GHZ RANGE 01-100
GRAPHITE
INTERFERENCE
MHZ RANGE 01-100
MICROSTRUCTURE
NANOCOMPOSITES
NANOPARTICLES
ORGANIC FLUORINE COMPOUNDS
PERMITTIVITY
POLYVINYLS
RESOLUTION
SHIELDING
SILVER
THIN FILMS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION