Development of functional polyurethane-cenosphere hybrid composite coatings from ricinus communis seed oil

Siyanbola, T. O. and Adebowale, Adedamola D. and Adeboye, S.A. and Rao, Spandana J.V. and Ndukwe, Nelly A. and Sodiya, F.E and Ajayi, Adesola A. and Akintayo, E. T. and Basak, P. and Narayan, Ramanuj (2023) Development of functional polyurethane-cenosphere hybrid composite coatings from ricinus communis seed oil. Scientific African, 20.

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Abstract

The usage of castor seed oil (CSO) as a sustainable and non-toxic biodegradable substitute for non-eco-friendly petroleum-based chemicals must be considered. This renewable feed- stock (seed oil) is vital for developing polymeric organic coatings. This report investigates the one-spot synthesis of castor seed oil, 1,1,1-Tris(hydroxymethyl) propane (cross-linker), Isophorone diisocyanate, and cenosphere nanoparticles incorporated within the polymer matrix. The hybrid coatings were characterised using FT-IR, NMR, FESEM, and XRD. The FT-IR spectrum showing the presence of absorption peaks at 1350 cm -1 , 1102 cm -1 , and 10 0 0 cm -1 , which represent the (Al = O), (SiO-Si), and (AlO 4 ) functional groups, respectively confirms the modifications carried out on the cenosphere fly ash nanoparticles. The ther- mal stability of the synthesised composites was evaluated on a thermogravimetric anal- yser (TGA). The TGA thermograms showed improved thermal stability as the percentage composition of CFA material increased in the coating system. The antimicrobial activity in- dicates that the PU-CFA composite bettered resistance toward Staphylococcus aureus and Escherichia coli .

Item Type:	Article
Uncontrolled Keywords:	Cenosphere Nanoparticles Antimicrobial TGA Biodegradable
Subjects:	Q Science > QD Chemistry Q Science > QH Natural history Q Science > QH Natural history > QH301 Biology T Technology > T Technology (General) T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	ORIGHOEYEGHA
Date Deposited:	26 Jul 2024 13:22
Last Modified:	26 Jul 2024 13:22
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/18309

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