Title of article
Effect of silver incorporation into PVDF-barium titanate composites for EMI shielding applications
Author/Authors
Joseph، نويسنده , , Nina and Singh، نويسنده , , Santosh Kumar and Sirugudu، نويسنده , , Roopas Kiran and Murthy، نويسنده , , Vemuri Rama Krishna and Ananthakumar، نويسنده , , Solaiappan and Sebastian، نويسنده , , Mailadil Thomas، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
7
From page
1681
To page
1687
Abstract
Composites of polyvinylidene fluoride (PVDF) with micron and nano sized BaTiO3 powders were developed for electromagnetic interference (EMI) shielding applications in the X band. PVDF-nano BaTiO3 composites show better shielding property compared to PVDF-micron sized BaTiO3 composites. The composite of PVDF with 40 vol% of nano BaTiO3 showed the best EMI shielding effectiveness and is about 9 dB. The contributions from reflection and absorption to the total EMI shielding effectiveness is same for the PVDF-BaTiO3 composites. Addition of small amount of silver particles improved the shielding properties of these composites due to the increased conductivity. An EMI shielding effectiveness of about 26 dB is obtained in the measured frequency range for the PVDF-20 vol% nano BaTiO3-10 vol% Ag composite of thickness 1.2 mm. Novel three phase composite combining the advantages of metal, nano ceramic and polymer is obtained with the potential for effective EMI shielding applications.
Keywords
A. Ceramics , A. Composites , A. Metals , A. Polymers , D. Dielectric properties
Journal title
Materials Research Bulletin
Serial Year
2013
Journal title
Materials Research Bulletin
Record number
2103476
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