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

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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.

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Data availability

The information regarding datasets generated during and/or analyzed during the current study are available from the corresponding co-authors on reasonable request.

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

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Acknowledgements

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

Funding

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

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Authors and Affiliations

  1. School of Chemical and Materials Engineering, National University of Sciences and Technology, Sector H-12, Islamabad, Pakistan

    Abdul Saboor, Ahmad Nawaz Khan, Rahim Jan & Munawar Khan

  2. US-Pakistan Center for Advance Studies in Energy, UET Peshawar, Peshawar, Pakistan

    Abdul Saboor

  3. Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea

    Saqib Sharif

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  1. Abdul Saboor
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Contributions

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.

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Correspondence to Abdul Saboor.

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Saboor, A., Khan, A.N., Jan, R. et al. Mechanical, dielectric and EMI shielding response of styrene acrylonitrile, styrene acrylonitrile/polyaniline polymer blends, upon incorporation of few layer graphene at low filler loadings. J Polym Res 25, 248 (2018). https://doi.org/10.1007/s10965-018-1648-6

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  • DOI: https://doi.org/10.1007/s10965-018-1648-6

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