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Effect of Pressure on Polymer Ignition

Kishore, K and Sankaralingam, S (1986) Effect of Pressure on Polymer Ignition. In: Journal of Fire Sciences, 4 (2). pp. 94-99.

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Official URL: http://jfs.sagepub.com/cgi/content/abstract/4/2/94


Auto-ignition temperature of polystyrene, poly(vinyl chloride) and carboxy terminated polybutadiene has been measured at various oxygen pressures (1-28 atm) in a high pressure differential thermal analysis assembly at a heating rate of 10°C/min. The exothermic peak appears between 250-350°C in polystyrene and poly(vinyl chloride) and between 150-200°C for carboxy terminated polybutadiene. Ignition appears to be controlled by in situ forma tion and degradation of polymeric peroxides. Inverse dependence of ignition temperature on oxygen pressure is explained by the rate equation which con siders that ignition of a particular sample, of a fixed geometry, occurs when gasification rate reaches a unique critical value.

Item Type: Journal Article
Publication: Journal of Fire Sciences
Publisher: Sage Publications
Additional Information: Copyright of this article belongs to Sage Publications.
Keywords: Auto-ignition temperature;High pressure DTA;Polymeric perox ides;Polymer gasification.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 15 Jul 2009 06:14
Last Modified: 15 Jul 2009 06:14
URI: http://eprints.iisc.ac.in/id/eprint/21217

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