Development of functional graphene oxide-urethane coating systems from Ricinus communis seed oil

Adeboye, Samuel and Adebamiro, Oluwafayokunmi and Arigbede, Olayemi and Iror evbo, Hesdh and Ajayi, Adesola and Adesola, Emmanuel and Ajanaku, K. O. and Basak, Pratyay and Narayan, Ra manuj and Siyanbola, Tolutope (2024) Development of functional graphene oxide-urethane coating systems from Ricinus communis seed oil. Industrial Crops and Products, 214. p. 118475.

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Abstract

The surface-modified graphene oxide (GO) nanoparticles and their blending with a fixed percentage of trimethylopropane (TMP) in Ricinus communis seed oil were successfully prepared in a one-pot urethane reaction using 4,4′-diisocyanato dicyclohexylmethane (H12MDI) and methyl isobutyl ketone (MIBK) as the reaction solvent. The structural elucidation and surface morphology of pristine and hybrid composites of the polyurethane coating films were investigated with the aid of Fourier transform infrared spectroscopy (FT-IR), Energy-dispersive X-ray spectroscopy (EDX), Proton nuclear magnetic resonance (1H NMR), X-ray diffraction (XRD), and Scanning electron microscope (SEM). The presence of FT-IR absorption peaks at 790 cm−1 to 870 cm−1, 990 cm−1, and 1017 cm−1 confirms the following functional groups phenyl -CH bend, stretching phenolic -CO, and epoxyl -C-O-C, respectively in modified graphene oxide. An evaluation of the thermal stability of the coating films that were synthesised was carried out with the use of a thermogravimetric analyzer (TGA). It was seen that as the amount of modified graphene oxide in the urethane films increased, so did the water contact angle from 0% to 0.5%. Antimicrobial and anticorrosive properties of the materials were also evaluated.

Item Type:	Article
Subjects:	Q Science > QD Chemistry Q Science > QH Natural history Q Science > QH Natural history > QH301 Biology T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	ORIGHOEYEGHA
Date Deposited:	26 Jul 2024 13:23
Last Modified:	26 Jul 2024 13:23
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/18310

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