An eco-friendly, highly efficient, and transparent coating derived from guar gum and citric acid for flame retardant treatment of cotton fabricsShow others and affiliations
2023 (English)In: International Journal of Biological Macromolecules, ISSN 0141-8130, E-ISSN 1879-0003, Vol. 253, no Part 7, article id 127506Article in journal (Refereed) Published
Abstract [en]
V.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.
Place, publisher, year, edition, pages
Elsevier B.V. , 2023. Vol. 253, no Part 7, article id 127506
Keywords [en]
Bio-based flame retardant, Sol-gel coating, Transparency
National Category
Materials Chemistry
Research subject
Chemistry of Interfaces
Identifiers
URN: urn:nbn:se:ltu:diva-101965DOI: 10.1016/j.ijbiomac.2023.127506ISI: 001102370800001PubMedID: 37863129Scopus ID: 2-s2.0-85174435595OAI: oai:DiVA.org:ltu-101965DiVA, id: diva2:1808454
Note
Godkänd;2023;Nivå 0;2023-11-14 (marisr);
Funder: National Natural Science Foundation of China (22075265); Youth Innovation Promotion Association CAS (2021459, LUAUS23004); Youth Innovation Promotion Association of the Chinese Academy of Sciences
2023-10-312023-10-312024-03-07Bibliographically approved