Sonnier Rodolphe, Viretto Amandine, Dumazert Loïc, Longerey Marc, Buonomo Sylvain, Gallard Benjamin, Longuet Claire, Cavodeau Florian, Lamy Raphaël, Freitag Andrea. 2016. Fire retardant benefits of combining aluminum hydroxide and silica in ethylene-vinyl acetate copolymer (EVA). Polymer Degradation and Stability, 128 : 228-236.
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Quartile : Q1, Sujet : POLYMER SCIENCE
Résumé : The flame retardancy of ethylene-vinyl acetate copolymer filled with metal hydroxides (aluminum hydroxide - ATH and magnesium hydroxide - MDH) and silica was investigated. Several composites containing only metal hydroxides or a combination of metal hydroxides and silica (ratio silica/hydrated filler = 0.18) were prepared and tested using pyrolysis-combustion flow calorimeter, thermogravimetric analysis and cone calorimeter at various heat fluxes. It was observed that silica provides benefits when the amount and other properties of the fillers allow the formation of an insulating mineral layer. In such cases, silica does not modify the first peak of heat release rate in cone calorimeter tests, but reduces or completely suppresses the breakdown of the insulating layer near the end of the combustion (assessed by the intensity of the second peak in the heat release rate as function of time). This effect is particularly obvious at lower heat flux, the insulating layer protects the underlying polymer, which is therefore not completely degraded.
Mots-clés Agrovoc : aluminium, retardant, magnesium, incendie
Mots-clés libres : Flame retardancy, Ethylene-vinyl acetate copolymer, Silica, Aluminum hydroxide
Auteurs et affiliations
- Sonnier Rodolphe, Ecole des mines d'Alès (FRA) - auteur correspondant
- Viretto Amandine, Ecole des mines d'Alès (FRA)
- Dumazert Loïc, Centre des Matériaux des Mines d'Alès (FRA)
- Longerey Marc, Ecole des mines d'Alès (FRA)
- Buonomo Sylvain, Ecole des mines d'Alès (FRA)
- Gallard Benjamin, Ecole des mines d'Alès (FRA)
- Longuet Claire, Ecole des mines d'Alès (FRA)
- Cavodeau Florian, Ecole des mines d'Alès (FRA)
- Lamy Raphaël, Elkem AS (NOR)
- Freitag Andrea, Elkem AS (NOR)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/605188/)
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