CARBONIZATION MECHANISMS RESULTING FROM INTUMESCENCE .2. ASSOCIATION WITH AN ETHYLENE TERPOLYMER AND THE AMMONIUM POLYPHOSPHATE PENTAERYTHRITOL FIRE-RETARDANT SYSTEM

Citation
S. Bourbigot et al., CARBONIZATION MECHANISMS RESULTING FROM INTUMESCENCE .2. ASSOCIATION WITH AN ETHYLENE TERPOLYMER AND THE AMMONIUM POLYPHOSPHATE PENTAERYTHRITOL FIRE-RETARDANT SYSTEM, Carbon, 33(3), 1995, pp. 283-294
Citations number
29
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
CarbonACNP
ISSN journal
00086223
Volume
33
Issue
3
Year of publication
1995
Pages
283 - 294
Database
ISI
SICI code
0008-6223(1995)33:3<283:CMRFI.>2.0.ZU;2-A
Abstract
In this work we study the carbonization resulting from an intumescence phenomenon of the fire-retardant formulation: ethylene terpolymer-amm onium polyphosphate/pentaerythritol. Characterisation of the intumesce nt coating is carried out using infrared spectroscopy and MAS-NMR of t he solid state. The study shows the formation of organic phosphocarbon aceous esters, which limits depolymerisation or the evolution of gaseo us hydrocarbons. These esters prevent the development of condensed pol yaromatic structures. These latter are bridged by the polyethylenic li nks, which provide the mechanical properties of interest in the protec tive shield.