Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives

The search for possible alternatives to traditional flame retardants (FRs) is pushing the academic and industrial communities towards the design of new products that exhibit low environmental impact and toxicity, notwithstanding high performances, when put in contact with a flame or exposed to an ir...

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Main Author: Giulio Malucelli
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/20/3774
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author Giulio Malucelli
author_facet Giulio Malucelli
author_sort Giulio Malucelli
collection DOAJ
description The search for possible alternatives to traditional flame retardants (FRs) is pushing the academic and industrial communities towards the design of new products that exhibit low environmental impact and toxicity, notwithstanding high performances, when put in contact with a flame or exposed to an irradiative heat flux. In this context, in the last five to ten years, the suitability and effectiveness of some biomacromolecules and bio-sourced products with a specific chemical structure and composition as effective flame retardants for natural or synthetic textiles has been thoroughly explored at the lab-scale level. In particular, different proteins (such as whey proteins, caseins, and hydrophobins), nucleic acids and extracts from natural sources, even wastes and crops, have been selected and exploited for designing flame retardant finishing treatments for several fibers and fabrics. It was found that these biomacromolecules and bio-sourced products, which usually bear key elements (i.e., nitrogen, phosphorus, and sulphur) can be easily applied to textiles using standard impregnation/exhaustion methods or even the layer-by-layer technique; moreover, these “green” products are mostly responsible for the formation of a stable protective char (i.e., a carbonaceous residue), as a result of the exposure of the textile substrate to a heat flux or a flame. This review is aimed at summarizing the development and the recent progress concerning the utilization of biomacromolecules/bio-sourced products as effective flame retardants for different textile materials. Furthermore, the existing drawbacks and limitations of the proposed finishing approaches as well as some possible further advances will be considered.
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spelling doaj.art-b4c25971555b4daaaa8118fb9053915d2022-12-21T17:23:21ZengMDPI AGMolecules1420-30492019-10-012420377410.3390/molecules24203774molecules24203774Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future PerspectivesGiulio Malucelli0Department of Applied Science and Technology, and local INSTM Unit, Viale Teresa Michel 5, 15121 Alessandria, ItalyThe search for possible alternatives to traditional flame retardants (FRs) is pushing the academic and industrial communities towards the design of new products that exhibit low environmental impact and toxicity, notwithstanding high performances, when put in contact with a flame or exposed to an irradiative heat flux. In this context, in the last five to ten years, the suitability and effectiveness of some biomacromolecules and bio-sourced products with a specific chemical structure and composition as effective flame retardants for natural or synthetic textiles has been thoroughly explored at the lab-scale level. In particular, different proteins (such as whey proteins, caseins, and hydrophobins), nucleic acids and extracts from natural sources, even wastes and crops, have been selected and exploited for designing flame retardant finishing treatments for several fibers and fabrics. It was found that these biomacromolecules and bio-sourced products, which usually bear key elements (i.e., nitrogen, phosphorus, and sulphur) can be easily applied to textiles using standard impregnation/exhaustion methods or even the layer-by-layer technique; moreover, these “green” products are mostly responsible for the formation of a stable protective char (i.e., a carbonaceous residue), as a result of the exposure of the textile substrate to a heat flux or a flame. This review is aimed at summarizing the development and the recent progress concerning the utilization of biomacromolecules/bio-sourced products as effective flame retardants for different textile materials. Furthermore, the existing drawbacks and limitations of the proposed finishing approaches as well as some possible further advances will be considered.https://www.mdpi.com/1420-3049/24/20/3774flame retardancecottonjutepolyestersilkwoolbiomacromoleculescaseinswhey proteinshydrophobinschitosandeoxyribonucleic acidphytic acidtanninslayer by layer techniquecone calorimetryflammability tests
spellingShingle Giulio Malucelli
Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
Molecules
flame retardance
cotton
jute
polyester
silk
wool
biomacromolecules
caseins
whey proteins
hydrophobins
chitosan
deoxyribonucleic acid
phytic acid
tannins
layer by layer technique
cone calorimetry
flammability tests
title Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
title_full Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
title_fullStr Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
title_full_unstemmed Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
title_short Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives
title_sort biomacromolecules and bio sourced products for the design of flame retarded fabrics current state of the art and future perspectives
topic flame retardance
cotton
jute
polyester
silk
wool
biomacromolecules
caseins
whey proteins
hydrophobins
chitosan
deoxyribonucleic acid
phytic acid
tannins
layer by layer technique
cone calorimetry
flammability tests
url https://www.mdpi.com/1420-3049/24/20/3774
work_keys_str_mv AT giuliomalucelli biomacromoleculesandbiosourcedproductsforthedesignofflameretardedfabricscurrentstateoftheartandfutureperspectives