An eco-friendly, highly efficient, and transparent coating derived from guar gum and citric acid for flame retardant treatment of cotton fabrics

0577185 - ÚMCH 2024 RIV NL eng J - Journal Article
Kalali, E. N. - Abdel-Mohsen, Abdellatif M. - Shabestari, M. E. - Pop-Georgievski, Ognen - Starý, Zdeněk - Abdel-Rahman, Rasha M. - Zhao, C. - Wang, X. - Esmaeili, N. - Lotfian, S. - Petrus, J.
An eco-friendly, highly efficient, and transparent coating derived from guar gum and citric acid for flame retardant treatment of cotton fabrics.
International Journal of Biological Macromolecules. Roč. 253, Part 7 (2023), č. článku 127506. ISSN 0141-8130. E-ISSN 1879-0003
R&D Projects: GA MŠMT(CZ) LUAUS23004
Institutional support: RVO:61389013
Keywords : bio-based flame retardant * sol-gel coating * transparency
OECD category: Polymer science
Impact factor: 8.2, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0141813023044033

A highly efficient, bio-ecofriendly, and transparent flame retardant (FR) for cotton fabric was developed and deposited onto the cellulose skeletal structure of cotton fabric through a one-pot sol-gel process. The flame retardant functional coating is composed of ammonium polyphosphate (APP), guar gum (GG), citric acid (CA), and a negligible amount of catalyst. Cotton fabrics were impregnated with different concentrations of ammonium polyphosphate and guar gum, with citric acid as a crosslinking agent. The overall crosslinking and grafting process was proven by FTIR and XPS. Based on the results, the designed coating exhibits over 90 % transmittance in the visible region. A 15 g/m2 flame-retardant coating induces excellent flame retardant efficiency at ultra-low flame-retardant concentrations of less than 6.25 wt%. Only a 5.25 wt% flame retardant concentration demonstrated condensed phase action, which resulted in 58.5 % and 73.6 % reductions in the pHRR and THR, respectively. Moreover, the limiting oxygen index (LOI) value showed a 74 % increase. The mechanical performance of FR coated cotton fibers was slightly reduced.
Permanent Link: https://hdl.handle.net/11104/0346410