Appraising the dielectric properties and the effectiveness of electromagnetic shielding of graphene reinforced silicone rubber nanocomposite

Author:

Shinde Avinash12,Siva Irulappasamy31,Munde Yashwant2,Sankar Irulappasamy4,Sultan Mohamed Thariq Hameed567,Shahar Farah Syazwani5,Gaff Milan89,Hui David10

Affiliation:

1. Center for Composite Materials, Kalasalingam Academy of Research and Education , Anand Nagar , 626126, TN , India

2. Department of Mechanical Engineering, Cummins College of Engineering for Women , Pune , MH , India

3. Department of Civil Engineering, Rajas Institute of Technology , Nagercoil, 629001 , Tamilnadu , India

4. Department of Mechanical Engineering, National Engineering College , Kovilpatti , 628503, TN , India

5. Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia , UPM Serdang, Seri Kembangan 43400 , Selangor Darul Ehsan , Malaysia

6. Laboratory of Bio-composite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia , Serdang, Seri Kembangan 43400 , Selangor Darul Ehsan , Malaysia

7. Aerospace Malaysia Innovation Centre (944751-A), Prime Minister’s Department , MIGHT Partnership Hub, Jalan Impact, Cyberjaya 63000 , Selangor Darul Ehsan , Malaysia

8. Faculty of Civil Engineering, Experimental Centre, Czech Technical University in Prague , Thakurova 7, 166 29 Prague 6 , Czech Republic

9. Department of Furniture, Design and Habitat (FFWT), Mendel University in Brno , Zemědělská 1665, 613 00 Brno-sever-Černá Pole , Czech Republic

10. Department of Mechanical Engineering, University of New Orleans , New Orleans , Louisiana , United States of America

Abstract

Abstract The aim of this research is to measure the dielectric properties and electromagnetic interference (EMI) shielding effectiveness (SE) of silicone rubber reinforced with graphene nanoplates. In a two-roll mill, different amounts of graphene are mixed together. This is followed by compression moulding at 170°C and post-curing for 4 h at 200°C. Between 1 MHz and 1 GHz, the waveguide transmission line method and a vector network analyser are used to measure the dielectric and EMI SE parameters. As the amount of graphene is increased from 0 to 7 wt%, AC conductivity goes up, reaching 1.19 × 10−3 S/cm at 7 wt%. The same composition gives the highest EMI SE of 43.22 dB at 1 GHz. The high-frequency structural simulation of different compositions shows how shielding works, and the results agree with what has been seen in experiments.

Publisher

Walter de Gruyter GmbH

Subject

Surfaces, Coatings and Films,Process Chemistry and Technology,Energy Engineering and Power Technology,Biomaterials,Medicine (miscellaneous),Biotechnology

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