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Journal of Polymer Research

, 25:248 | Cite as

Mechanical, dielectric and EMI shielding response of styrene acrylonitrile, styrene acrylonitrile/polyaniline polymer blends, upon incorporation of few layer graphene at low filler loadings

  • Abdul Saboor
  • Ahmad Nawaz Khan
  • Rahim Jan
  • Saqib Sharif
  • Munawar Khan
ORIGINAL PAPER
  • 44 Downloads

Abstract

The malfunction of electronic devices and many health-related issues may be caused due to electromagnetic interference (EMI) pollution. To overcome this problem a new set of material SAN/PANI/FLG hybrid composite with better EMI shielding properties is prepared using solution casting technique. Conductive polyaniline (PANI) is added (5 wt% and 10 wt%) to otherwise, an insulative polymer styrene acrylonitrile (SAN). Furthermore, few layer graphene (FLG) is added (0.1–1 wt%) to SAN/PANI polymer blends for preparation of SAN/PANI/FLG hybrid composites. The incorporation of PANI in SAN produces a phase separated morphology, whereas graphene appears in sheet like structure. For 0.1 wt% FLG/SAN/PANI-10 composite, total shielding effectiveness (SET) is enhanced from 1.1 to 24.3 dB (100 Hz), mainly due to enhanced dielectric characteristics. However, the maximum increase in tensile strength (49.6 MPa) and modulus (1.5 GPa) is observed for 0.5 wt% FLG/SAN/PANI-5.0 hybrid composite. The increase in dielectric properties and shielding efficiency of SAN/PANI/FLG may be credited to the accumulation of space charges or electric dipoles at the insulator conductor-interface.

Keywords

Hybrid composites EMI shielding Dielectric properties Mechanical properties Polymer blends 

Abbreviations

SAN

Styrene Acrylonitrile

PAN

Polyaniline

FLG

Few Layer Graphene

EMI

Electromagnetic Interference

PVA

Polyvinyl Alcohol

GNS

Graphene Nano Sheets

AC

Alternating Current

rGO

Reduced Graphene Oxide

PS

Polystyrene

SDS

Sodium Dodecyl Sulphate

ANI

Aniline

APS

Ammonium Peroxide Sulphate

Notes

Acknowledgements

We thank Mr. Tanveer Zia for sample support and his valuable input.

Author’s contribution

ANK and RJ supervised and designed the experiments and co-wrote the manuscript. SS and MK helped in simulation model for plotting EMI shielding behavior and co-wrote the manuscript. All the co-authors read and approved the final manuscript.

Funding

The project was supported by the research grants from Higher Education Commission (HEC), Pakistan under the NRPU R&D Project-20-3052.

Compliance with ethical standards

Competing interest

The authors declare that they have no competing interests.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.School of Chemical and Materials EngineeringNational University of Sciences and TechnologyIslamabadPakistan
  2. 2.US-Pakistan Center for Advance Studies in EnergyUET PeshawarPeshawarPakistan
  3. 3.Gwangju Institute of Science and Technology (GIST)GwangjuSouth Korea

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