Flame retardant property of flax fabrics coated by extracellular polymeric substances recovered from both activated sludge and aerobic granular sludge.

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ID: 71058
2019
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Abstract
In this research, extracellular polymeric substances (EPS), such as EPS and EPS, were successfully extracted from activated and aerobic granular sludge, respectively, and tested as bio-based flame retardant materials. Flax fabric was coated by the biopolymeric substances and its flammability was evaluated based on a vertical burning test defined in US Federal Aviation Regulation. Both EPS and EPS coated flax fabrics achieved the self-extinguishment due to effective char formation. In particular, the result of the EPS coated sample met the aviation requirements for the aircraft interior. Moreover, the presence of carbonated hydroxyapatite was identified in EPS char residue by using FTIR and XRD analysis. It can contribute to the self-extinguishing property of the fabric by enhancing char formation. Thermogravimetric analysis also demonstrated that EPS coated flax was able to produce greater amount of char residue and its decomposition rate was significantly reduced. This research indicates that there is a great potential to use this biopolymer as a resource for developing high performance bio-inspired flame retardant materials and contribute to a circular economy.
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kim2019flamewater Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kim, Nam Kyeun;Mao, Ningtao;Lin, Richard;Bhattacharyya, Debes;van Loosdrecht, Mark C M;Lin, Yuemei;
Journal Water research
Year 2019
DOI
S0043-1354(19)31118-2
URL
Keywords
aerobic granular sludge flame retardant extracellular polymeric substance flax fabric

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