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Flame retardant textile back-coatings. Part 2. Effectiveness of phosphorus-containing flame retardants in textile back-coating formulations

Horrocks, A. R., Wang, M.Y., Hall, M. E., Sunmonu, Femi and Pearson, J. S. (2000) Flame retardant textile back-coatings. Part 2. Effectiveness of phosphorus-containing flame retardants in textile back-coating formulations. Polymer International, 49 (10). pp. 1079-1091. ISSN 09598103

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Abstract

Selected phosphorus-containing flame retardants, including some intumescents, have been formulated with selected resins and applied as back-coatings to both cotton and cotton-polyester (35:65) blended fabrics. While all formulations raise the limiting oxygen index, only those based on ammonium polyphosphate and a cyclic phosphonate enable samples to pass a small-scale version of the simulated match test, BS5852: 1979, Source 1. As expected, the back-coatings containing intumescents promoted higher levels of char formation, but these did not reflect in their performance to the match test where most incurred failures.

Thermogravimetric analysis suggests that the more effective flame retardants as exemplified by ammonium polyphosphate, are those which liquefy by melting and/or decomposition well below 300 °C. It is proposed that this enables wetting by these products of the back face of the fabric and their diffusion to the front face where, as the temperature rises towards 300 °C, char formation occurs before ignition of surface fibres can take place.

Item Type: Article
Subjects: T Technology > TS Manufactures
Schools: School of Art, Design and Architecture
Depositing User: Graham Stone
Date Deposited: 20 Aug 2008 16:55
Last Modified: 20 Aug 2008 16:55
URI: http://eprints.hud.ac.uk/id/eprint/1570

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