University of Oulu

Nina Joseph, Jobin Varghese, Mailadil Thomas Sebastian,bGraphite reinforced polyvinylidene fluoride composites an efficient and sustainable solution for electromagnetic pollution, Composites Part B: Engineering, Volume 123, 2017, Pages 271-278, ISSN 1359-8368,

Graphite reinforced polyvinylidene fluoride composites an efficient and sustainable solution for electromagnetic pollution

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Author: Joseph, Nina1,2; Varghese, Jobin1,2; Sebastian, Mailadil Thomas1,3
Organizations: 1Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 6 95019, Kerala, India
2Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, 90014 Oulu, Finland
3Korean Institute of Ceramic Engineering and Technology (KICET), 101, Jinju-si, Gyeongsangnam-do, South Korea
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.8 MB)
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Language: English
Published: Elsevier, 2017
Publish Date: 2019-08-15


Graphite flakes reinforced polyvinylidene fluoride (PVDF) composites were prepared and investigated the influence of DC (Direct Current), AC (Alternating Current) conductivity, sample thickness as well as presence of conductive layer on its electromagnetic interference (EMI) shielding effect. The graphite incorporated PVDF composite with sample thickness of 1 mm exhibit good shielding properties of about 55–57 dB in the frequency range of 8.2–18 GHz for highest filler loading. These composites exhibit absorption as the primary mechanism for EMI shielding. Addition of graphite decreases the coefficient of thermal expansion (CTE) and improved the mechanical properties. The EMI shielding effect improved with increase in sample thickness and by incorporating a conductive layer to the graphite flake composite. The graphite flake based composites are found to be lightweight, thin and good EMI shielding materials that can be tuned to wide range of shielding applications.

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Series: Composites. Part B, Engineering
ISSN: 1359-8368
ISSN-E: 1879-1069
ISSN-L: 1359-8368
Volume: 123
Pages: 271 - 278
DOI: 10.1016/j.compositesb.2017.05.030
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
216 Materials engineering
Copyright information: © 2017 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license