The Extinction Oxygen Index of polyester-cotton blended fabrics

Allen, J., Horrocks, Richard ORCID: 0000-0003-1431-058X and Price, Dennis (1988) The Extinction Oxygen Index of polyester-cotton blended fabrics. Journal of Fire Sciences, 6 (6). pp. 432-449. ISSN 0734-9041

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Limiting and extinction oxygen index techniques have been used to study the effects that fabric variables and blend composition have on the burning behaviour of 20/80, 50/50 and 65/35 polyester-cotton blended fabrics. Whilst LOI values were not dependent on ignition time, they were for a given blend com position dependent on fabric area density. Lo values determined at zero area density were little dependent on blend composition for the blends studied. EOI values, as shown previously for single fibre component fabrics, were de pendent on igniter application times. Derived [EOI]o values at zero ignition times, like LOI, increased with area density. Zero area density or "free-fibre" extinction oxygen index Eo values, like LOI and Lo, varied only slightly with blend composition. However, when compared with respective values for pure polyester and cotton fabrics, the respective magnitudes of blend Eo values pro vide a better indication than do Lo values of the difference of blend from individual component fibre burning behaviour. Thus it is considered that the extinction concept provides a better indication of the variations of flammable character of polyester-cotton blends compared to the individual fibre-containing fabrics.

Item Type: Article
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 22 Aug 2018 07:49
Last Modified: 22 Aug 2018 07:49
Identification Number: 10.1177/073490418800600604

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