Siyanbola, T. O. and Enishetty, R. and Kumar, K. Rajesh and James, O. O. and Olasehinde, G. I and Kaki, S. and Narayan, R. and Raju, KVSN (2021) Specific crosslinking effects of poly(epichlorohydrin)‐triol on urethane polymer matrix of castor seed oil‐based coatings. Journal of Coatings Technology and Research, 18. pp. 129-141.
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Abstract
The contributions of castor seed oil (CSO) as a useful, nontoxic, and sustainable base material for coating systems cannot be overemphasized. This paper took advantage of the predominant fatty acid composition in CSO (i.e., ricinoleic acid). It blended a synthesized crosslinker, poly(epichlorohydrin‐triol) (PECH‐triol), in percentages within its polymeric matrix. Physicochemical and spectroscopic (FTIR, 1H‐NMR, and 13C‐NMR) examinations were carried out on the polyols. Thermal stability, hydrophobicity, anticorrosion, mechanical, and antibacterial properties of the prepared polyurethane (PU) coatings were examined. The 20% PECH‐triol–CSO‐PU film having its TON and TEND at 230.5 and 511.0°C, respectively, showed improved thermal stability when compared with the pristine film (CSO‐PU). The derivative of TGA reveals a three‐stage degradation step. Hydrophobicity was seen to increase from 73.3° to 92.2°, a reflection of the crosslinking effect of PECH‐triol within the urethane matrix. The improved adhesion of 20% PECH‐triol–CSO‐PU coating on mild steel gave a better chemical resistance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Poly(epichlorohydrin) Seed oil Crosslinker Thermal stability Antibacterial Access via your institution |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Medicine, Health and Life Sciences > School of Biological Sciences |
| Depositing User: | nwokealisi |
| Date Deposited: | 25 Apr 2023 11:43 |
| Last Modified: | 25 Apr 2023 11:43 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/16846 |
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