Ahmad, Waqas and Ahmad, Qaizar and Yaseen, Muhammad and Ahmad, Imtiaz and Hussain, Fida and Mohamed Jan, Badrul and Ikram, Rabia and Stylianakis, Minas M. and Kenanakis, George (2021) Development of waste polystyrene-based copper oxide/reduced graphene oxide composites and their mechanical, electrical and thermal properties. Nanomaterials, 11 (9). ISSN 2079-4991, DOI https://doi.org/10.3390/nano11092372.
Full text not available from this repository.Abstract
The current study reports the effect of different wt. ratios of copper oxide nanoparticle (CuO-NPs) and reduced graphene oxide (rGO) as fillers on mechanical, electrical, and thermal properties of waste polystyrene (WPS) matrix. Firstly, thin sheets of WPS-rGO-CuO composites were prepared through solution casting method with different ratios, i.e., 2, 8, 10, 15 and 20 wt.% of CuO-NPs and rGO in WPS matrix. The synthesized composite sheets were characterized by Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray (EDX), X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). The electrical conductance and mechanical strength of the prepared composites were determined by using LCR meter and universal testing machine (UTM). These properties were dependent on the concentrations of CuO-NPs and rGO. Results display that the addition of both fillers, i.e., rGO and CuO-NPs, collectively led to remarkable increase in the mechanical properties of the composite. The incorporation of rGO-CuO: 15% WPS sample, i.e., WPS-rGO-CuO: 15%, has shown high mechanical strength with tensile strength of 25.282 MPa and Young modulus of 1951.0 MPa, respectively. Similarly, the electrical conductance of the same composite is also enhanced from 6.7 x 10(-14) to 4 x 10(-7) S/m in contrast to WPS at 2.0 x 10(6) Hz. The fabricated composites exhibited high thermal stability through TGA analysis in terms of 3.52% and 6.055% wt. loss at 250 degrees C as compared to WPS.
| Item Type: | Article |
|---|---|
| Funders: | Malaysia-Thailand Joint Authority[IF062-2019], Fundamental Research Grant Scheme from the University of Malaya[FP050-2019A], European Commission, Greek Ministry of Development-GSRT[T2EDK-02073] |
| Uncontrolled Keywords: | Reduced graphene oxide;Copper oxide;Waste polystyrene matrix; Electrical conductance |
| Subjects: | Q Science > QC Physics T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 22 Jun 2022 03:54 |
| Last Modified: | 22 Jun 2022 03:54 |
| URI: | http://eprints.um.edu.my/id/eprint/34136 |
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