Influence of colemanite on the fire retardancy of ethylene-vinyl acetate and ethylene-methyl acrylate copolymers

Cavodeau Florian, Viretto Amandine, Otazaghine Belkacem, Lopez-Cuesta José-Marie, Delaite Christelle. 2017. Influence of colemanite on the fire retardancy of ethylene-vinyl acetate and ethylene-methyl acrylate copolymers. Polymer Degradation and Stability, 144 : 401-410.

Quartile : Q1, Sujet : POLYMER SCIENCE

Résumé : In the present work, colemanite, a hydrated calcium borate, was used as co-filler in aluminium hydroxide/ethylene-vinyl acetate copolymers (ATH/EVA). The presence of colemanite showed an improvement of the fire properties of composites. However, this additive does not act as a synergistic agent with ATH, but seems to increase significantly fire properties by his own. The formation of an expanded layer during cone calorimetry tests insulates the sample and reduces the heat release rate (HRR) values. The performance is ascribed to the hardening of the barrier layer due to the modification of colemanite structure at high temperature. Moreover, to study its mechanisms of fire retardancy and to investigate its potential synergistic effects, colemanite was also introduced as co-filler in magnesium hydroxide (MH)/EVA, ATH/ethylene-methyl acrylate (EMA) and MH/EMA composites.

Mots-clés Agrovoc : retardant, incendie, aluminium, calcium, borate, température

Mots-clés libres : Flame retardancy, Aluminum hydroxide, Magnesium hydroxide, EVA, EMA, Colemanite

Auteurs et affiliations

• Cavodeau Florian, Ecole des mines d'Alès (FRA)
• Viretto Amandine, Ecole des mines d'Alès (FRA) ORCID: 0000-0001-5193-4784
• Otazaghine Belkacem, Ecole des mines d'Alès (FRA) - auteur correspondant
• Lopez-Cuesta José-Marie, Ecole des mines d'Alès (FRA)
• Delaite Christelle, LPIM (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/605191/)

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