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Flammability of plastics I: Ignition temperatures

✍ Scribed by H. E. Thomson; D. D. Drysdale

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 930 KB
Volume: 11
Category: Article
ISSN: 0308-0501
DOI: 10.1002/fam.810110402

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✦ Synopsis

The piloted ignition of six common thermoplastics has been studied by exposing horizontal samples (65 x 65 x 6 mm thick) to irradiance levels in the range 10-40 kw m-*. Fine thermocouples were attached to the exposed face and allowed the surface temperature to be monitored continuously. Times to sustained ignition from a small pilot flame and the corresponding surface temperature were recorded. Within experimental error, ignition temperatures showed no systematic dependence on changes in radiation intensity or spectral characteristics of the source, although separate experiments indicated a dependence on surface area when this was reduced to ca 20 mm square. Times to ignition were dependent not only on radiant intensity but also on the spectral characteristics of the source.

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