Volume 139, Issue 30 e52664
RESEARCH ARTICLE

The effect of graphene-based nanofillers on the structure, thermal, and mechanical properties of poly(vinyl alcohol)

Faezeh Rahbarshendi

Faezeh Rahbarshendi

Nanostructured and Novel Materials Laboratory (NNML), Department of Materials Engineering, University of Tabriz, Tabriz, Iran

Contribution: Data curation (lead), ​Investigation (lead)

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Ayda Baybordiani

Ayda Baybordiani

Nanostructured and Novel Materials Laboratory (NNML), Department of Materials Engineering, University of Tabriz, Tabriz, Iran

Contribution: Conceptualization (lead), Data curation (equal), ​Investigation (equal), Methodology (equal)

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Hamed Asgharzadeh

Corresponding Author

Hamed Asgharzadeh

Nanostructured and Novel Materials Laboratory (NNML), Department of Materials Engineering, University of Tabriz, Tabriz, Iran

Correspondence

Hamed Asgharzadeh, Nanostructured and Novel Materials Laboratory (NNML), Department of Materials Engineering, University of Tabriz, 51666-16471 Tabriz, Iran.

Email: [email protected]

Contribution: Conceptualization (lead), Project administration (lead), Supervision (lead), Writing - review & editing (lead)

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Milad Badr

Milad Badr

Research Center for Advanced Materials, Faculty of Materials Engineering, Sahand University of Technology, Tabriz, Iran

Contribution: Validation (lead), Writing - original draft (lead)

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Kosar Hassannezhad

Kosar Hassannezhad

Materials Science and Nano Engineering, Sabanci University, Istanbul, Turkey

Contribution: Data curation (equal), ​Investigation (equal), Methodology (equal), Visualization (lead)

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First published: 20 May 2022
Citations: 3

Abstract

PVA matrix composite films reinforced with graphene oxide (GO) and reduced graphene oxide (rGO) nanoplatelets are prepared by water-solution processing. The structure and properties of the composites are investigated by field-emission scanning electron microscopy, Raman spectroscopy, Fourier-transform infrared spectroscopy, differential scanning calorimetry, and dynamic mechanical analysis. The results indicate a 22% improvement in the storage modulus and a 12°C increase in the glass transition temperature by the addition of only 0.5 wt% rGO into the PVA. The enhancement of the mechanical and thermal properties of the composite films is attributed to the hydrogen bond barrier and molecule movement restriction effects. The higher amount of the hydrogen bonds in the PVA/rGO composite compared to the PVA/GO sample cause its higher thermal stability and mechanical performance.

CONFLICT OF INTEREST

There is no conflicts of interest.

DATA AVAILABILITY STATEMENT

Research data are not shared.

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