Environmentally sustainable flame retardant surface treatments for textiles: the potential of a novel atmospheric plasma/UV laser technology

Horrocks, Richard ORCID: 0000-0003-1431-058X, Eivazi, S., Ayesh, Maram and Kandola, Baljinder K. ORCID: 0000-0002-3621-3724 (2018) Environmentally sustainable flame retardant surface treatments for textiles: the potential of a novel atmospheric plasma/UV laser technology. Fibres, 6 (2). p. 31. ISSN 2079-6439

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Conventional flame retardant (FR) application processes for textiles involve aqueous processing which is resource-intensive in terms of energy and water usage. Recent research using sol-gel and layer-by-layer chemistries, while claimed to be based on more environmentally sustainable chemistry, still require aqueous media with the continuing problem of water management and drying processes being required. This paper outlines the initial forensic work to characterise commercially produced viscose/flax, cellulosic furnishing fabrics which have had conferred upon them durable flame retardant (FR) treatments using a novel, patented atmospheric plasma/Ultraviolet (UV) excimer laser facility for processing textiles with the formal name Multiplexed Laser Surface Enhancement (MLSE) system. This system (MTIX Ltd., Huddersfield, UK) is claimed to offer the means of directly bonding of flame retardant precursor species to the component fibres introduced either before plasma/UV exposure or into the plasma/UV reaction zone itself; thereby eliminating a number of wet processing cycles. Nine commercial fabrics, pre-impregnated with a semi-durable, proprietary FR finish and subjected to the MLSE process have been analysed for their flame retardant properties before and after a 40 �C 30 min water soak. For one fabric, the pre-impregnated fabric was subjected to a normal heat cure treatment which conferred the same level of durability as the plasma/UV-treated analogue. Thermogravimetric analysis (TGA) and limiting oxygen index (LOI) were used to further characterise their burning behaviour and the effect of the treatment on surface fibre morphologies were assessed. Scanning electron microscopy indicated that negligible changes had occurred to surface topography of the viscose fibres occurred during plasma/UV excimer processing.

Item Type: Article
Additional Information: This article belongs to the Special Issue of Fibres "Environmentally-sustainable Flame Retardant and Heat Resistant Fibres and Textiles"
Uncontrolled Keywords: surface, textiles, cellulosic, viscose, linen, flame retardant, plasma, ultraviolet, durability, phosphorus, nitrogen, polyurethane, thermal analysis, scanning electron microscopy
Divisions: School of Engineering > Engineering
University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 15 May 2018 10:01
Last Modified: 15 May 2018 10:01
Identification Number: 10.3390/fib6020031
URI: http://ubir.bolton.ac.uk/id/eprint/1765

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