Inclusion complex-based multifunctional polyurethane anti-bacterial coatings with excellent mechanical and thermal properties

Sharma, A, Kaur, IP, Gao, F ORCID: https://orcid.org/0000-0003-4064-9579 and Verma, G, 2024. Inclusion complex-based multifunctional polyurethane anti-bacterial coatings with excellent mechanical and thermal properties. Journal of Coatings Technology and Research, 21, pp. 1291-1309. ISSN 1547-0091

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Abstract

Sulfonated β-cyclodextrin (CD1) combined with nanocurcumin or nanoclay was used to prepare multifunctional polyurethane (PU) coatings having antimicrobial capabilities. The combination resulted in formation of an inclusion complex which is confirmed by Raman studies and Job's plot analysis. The co-precipitation method is employed to achieve two inclusion complexes by combining CD1 with Cloisite 30B (C30B) and nanocurcumin (NC) separately. The resultant nanocomposite coating samples exhibit < 100 °C deviation at 50% weight loss from PU in heat resistance, as well as a 78% enhancement in toughness and 2.3–3 cm of zone of inhibition which is comparable to amoxicillin in its performance in resistance to bacterial growth. The advantage of absorbing such inclusion complexes into polymer coatings is the creation of multifunctionalities such as hydrophobicity, flame retardance, thermally stable and low intumescent coatings.

Item Type:	Journal article
Publication Title:	Journal of Coatings Technology and Research
Creators:	Sharma, A., Kaur, I.P., Gao, F. and Verma, G.
Publisher:	Springer Verlag
Date:	July 2024
Volume:	21
ISSN:	1547-0091
Identifiers:	Number Type 10.1007/s11998-023-00892-2 DOI 1869002 Other
Rights:	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s11998-023-00892-2
Divisions:	Schools > School of Science and Technology
Record created by:	Jeremy Silvester
Date Added:	22 Nov 2024 14:19
Last Modified:	22 Nov 2024 14:19
URI:	https://irep.ntu.ac.uk/id/eprint/52641

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