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Phytic Acid and Biochar: An Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics.
Polymers (Basel). 2020 Apr 04; 12(4)P

Abstract

Flame retardant systems based on bio-sourced products combine quite high fire performances with the low environmental impact related to their synthesis and exploitation. In this context, this work describes a new all bio-sourced flame retardant system designed and applied to cotton fabrics. In particular, it consists of phytic acid (PA), a phosphorus-based naturally occurring molecule extracted from different plant tissues, in combination with biochar (BC), a carbon-rich solid product obtained from the thermo-chemical conversion of biomasses in an oxygen-limited environment. PA and BC were mixed together at a 1:1 weight ratio in an aqueous medium, and applied to cotton at different loadings. As revealed by flammability and forced combustion tests, this bio-sourced system was able to provide significant improvements in flame retardance of cotton, even limiting the final dry add-on on the treated fabrics at 8 wt.% only. The so-treated fabrics were capable to achieve self-extinction in both horizontal and vertical flame spread tests; besides, they did not ignite under the exposure to 35 kW/m2 irradiative heat flux. Conversely, the proposed flame retardant treatment did not show a high washing fastness, though the washed flame retarded fabrics still exhibited a better flame retardant behavior than untreated cotton.

Authors+Show Affiliations

Department of Applied Science and Technology, and local INSTM Unit, Viale Teresa Michel 5, 15121 Alessandria, Italy.Department of Applied Science and Technology, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.Department of Applied Science and Technology, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.Department of Applied Science and Technology, and local INSTM Unit, Viale Teresa Michel 5, 15121 Alessandria, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32260336

Citation

Barbalini, Marco, et al. "Phytic Acid and Biochar: an Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics." Polymers, vol. 12, no. 4, 2020.
Barbalini M, Bartoli M, Tagliaferro A, et al. Phytic Acid and Biochar: An Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics. Polymers (Basel). 2020;12(4).
Barbalini, M., Bartoli, M., Tagliaferro, A., & Malucelli, G. (2020). Phytic Acid and Biochar: An Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics. Polymers, 12(4). https://doi.org/10.3390/polym12040811
Barbalini M, et al. Phytic Acid and Biochar: an Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics. Polymers (Basel). 2020 Apr 4;12(4) PubMed PMID: 32260336.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytic Acid and Biochar: An Effective All Bio-Sourced Flame Retardant Formulation for Cotton Fabrics. AU - Barbalini,Marco, AU - Bartoli,Mattia, AU - Tagliaferro,Alberto, AU - Malucelli,Giulio, Y1 - 2020/04/04/ PY - 2020/03/12/received PY - 2020/03/23/revised PY - 2020/03/24/accepted PY - 2020/4/9/entrez PY - 2020/4/9/pubmed PY - 2020/4/9/medline KW - biochar KW - cone calorimetry tests KW - cotton KW - durability KW - flame retardance KW - flammability tests KW - phytic acid KW - thermal stability JF - Polymers JO - Polymers (Basel) VL - 12 IS - 4 N2 - Flame retardant systems based on bio-sourced products combine quite high fire performances with the low environmental impact related to their synthesis and exploitation. In this context, this work describes a new all bio-sourced flame retardant system designed and applied to cotton fabrics. In particular, it consists of phytic acid (PA), a phosphorus-based naturally occurring molecule extracted from different plant tissues, in combination with biochar (BC), a carbon-rich solid product obtained from the thermo-chemical conversion of biomasses in an oxygen-limited environment. PA and BC were mixed together at a 1:1 weight ratio in an aqueous medium, and applied to cotton at different loadings. As revealed by flammability and forced combustion tests, this bio-sourced system was able to provide significant improvements in flame retardance of cotton, even limiting the final dry add-on on the treated fabrics at 8 wt.% only. The so-treated fabrics were capable to achieve self-extinction in both horizontal and vertical flame spread tests; besides, they did not ignite under the exposure to 35 kW/m2 irradiative heat flux. Conversely, the proposed flame retardant treatment did not show a high washing fastness, though the washed flame retarded fabrics still exhibited a better flame retardant behavior than untreated cotton. SN - 2073-4360 UR - https://www.unboundmedicine.com/medline/citation/32260336/Phytic_Acid_and_Biochar:_An_Effective_All_Bio_Sourced_Flame_Retardant_Formulation_for_Cotton_Fabrics_ L2 - https://www.mdpi.com/resolver?pii=polym12040811 DB - PRIME DP - Unbound Medicine ER -
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