Fire retardant benefits of combining aluminum hydroxide and silica in ethylene-vinyl acetate copolymer (EVA)
| Autor: | Loïc Dumazert, Rodolphe Sonnier, Claire Longuet, Florian Cavodeau, Raphaël Lamy, Sylvain Buonomo, Marc Longerey, Amandine Viretto, Andrea Freitag, Benjamin Gallard |
|---|---|
| Přispěvatelé: | Pôle Matériaux Polymères Avancés (Pôle MPA), Centre des Matériaux des Mines d'Alès (C2MA), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Elkem AS |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Thermogravimetric analysis
Materials science Polymers and Plastics chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy chemistry.chemical_compound [SPI]Engineering Sciences [physics] Flame retardancy Aluminium Cone calorimeter Materials Chemistry Composite material Magnesium Ethylene-vinyl acetate Silica Ethylene-vinyl acetate copolymer 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Calorimeter chemistry Mechanics of Materials Hydroxide Aluminum hydroxide 0210 nano-technology Fire retardant |
| Zdroj: | Polymer Degradation and Stability Polymer Degradation and Stability, Elsevier, 2016, 128, pp.228-236. ⟨10.1016/j.polymdegradstab.2016.03.030⟩ |
| ISSN: | 0141-3910 1873-2321 |
| DOI: | 10.1016/j.polymdegradstab.2016.03.030⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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