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Smart Textiles Coated with Eco-Friendly UV-Blocking Nanoparticles Derived from Natural Resources

Dhineshbabu, NR and Bose, Suryasarathi (2018) Smart Textiles Coated with Eco-Friendly UV-Blocking Nanoparticles Derived from Natural Resources. In: ACS OMEGA, 3 (7). pp. 7454-7465.

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Official URL: https://dx.doi.org/10.1021/acsomega.8b00822

Abstract

Herein, eco-friendly iron titanate nanoparticles, FeTiO3 (FT), derived from natural resources (like ilmenite sand) were coated onto cotton fabrics (CF) to develop smart textile with enhanced UV-shielding property. The FT nanoparticles were dispersed in a polyurethane (PU) matrix, and the resulting nanocomposite was coated on CF. In addition, few sandwich architectures were designed by rationally stacking CF coated with PU and FT nanoparticles. The resulting sandwich structures blocked UV rays mainly by absorption. FT nanoparticles were comprehensively characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV-vis, vibrating sample magnetometer, and thermogravimetric analysis. FT was suitably surface-functionalized to enhance the quality of dispersion in PU, thereby facilitating effective coating on CF. The latter was systematically evaluated by microscopic and spectroscopic techniques. In addition, flammability of the coated CF was evaluated and the char was assessed to gain insight into the fire-retardant properties. Interestingly, CF coated with FT exhibited a strong UV-shielding ability in sharp contrast to CF coated with PU. Further, the sandwich architecture consisting of CF with FT and PU resulted in an increase in the ultraviolet-protecting factor value to >50 compared to only PU-coated CF. Our results indicate that the sandwich structure holds excellent promise in the quest of designing smart textiles with enhanced UV shielding.

Item Type: Journal Article
Additional Information: Copyright of this article belong to AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 10 Aug 2018 16:08
Last Modified: 05 Mar 2019 09:22
URI: http://eprints.iisc.ac.in/id/eprint/60400

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