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Carbonization mechanisms resulting from intumescence-part II. Association with an ethylene terpolymer and the ammonium polyphosphate-pentaerythritol fire retardant system

✍ Scribed by Serge Bourbigot; Michel Le Bras; René Delobel; Patrice Bréant; Jean-michel Trémillon

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
820 KB
Volume
33
Category
Article
ISSN
0008-6223

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✦ Synopsis

In this work we study the carbonization resulting from an intumescence phenomenon of the fire-retardant formulation: ethylene terpolymer-ammonium polyphosphate/pentaerythritol. Characterisation of the intumescent coating is carried out using infrared spectroscopy and MAS-NMR of the solid state.

The study shows the formation of organic phosphocarbonaceous esters, which limits depolymerisation or the evolution of gaseous hydrocarbons.

These esters prevent the development of condensed polyaromatic structures.

These latter are bridged by the polyethylenic links, which provide the mechanical properties of interest in the protective shield.

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Carbonization mechanisms resulting from intumescence association with the ammonium polyphosphate-pentaerythritol fire retardant system
✍ Serge Bourbigot; Michel Le Bras; René Delobel 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 969 KB

In this work we study the thermal behavior of an ammonium polyphosphate-pentaerythritol mixture, fire-retardant additive for polyolefins, and most particularly the carbonization process resulting from an intumescent phenomenon. The study has been carried out using Micro-Raman and 13C, 'H. "P NMR of