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Article Dans Une Revue Polymers for Advanced Technologies Année : 2011

Combining cone calorimeter and PCFC to determine the mode of action of flame retardant additives

Laurent Ferry
Fouad Laoutid
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  • PersonId : 915641
Blandine Friedrich
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  • PersonId : 915642
Abdelghani Laachachi
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  • PersonId : 915643

Résumé

The flammability of various flame retarded formulations containing different hydrated mineral fillers and/or phosphorous compounds and/or carbon nanotubes has been investigated using both cone calorimeter and PCFC. A method was proposed to evaluate the barrier effect of the flame retardant additives. This method is based on the fact that PCFC is non sensitive to physical flame retardant effects while both chemical and physical phenomena have a great effect on cone calorimeter results. Therefore normalized pHRR values obtained with both techniques does not always show a good correlation. It was highlighted that the mismatch between both pHRR results was related to the formation of a protective layer during combustion. Protective layers have been evidenced independently by visual observations. Thus it is proposed that the magnitude of the deviation from a perfect correlation between cone calorimeter and PCFC pHRRs could be used to quantify the magnitude of barrier effect. While the results obtained from different fire tests are generally not correlated, such an approach based on the complementarity of different techniques appears more relevant despite of its empirical nature.

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Dates et versions

hal-00649884 , version 1 (09-12-2011)

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José-Marie Lopez-Cuesta, Rodolphe Sonnier, Laurent Ferry, Claire Longuet, Fouad Laoutid, et al.. Combining cone calorimeter and PCFC to determine the mode of action of flame retardant additives. Polymers for Advanced Technologies, 2011, 22 (7), pp.1091. ⟨10.1002/pat.1989⟩. ⟨hal-00649884⟩
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