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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/65587

    Título
    Cooperative effect of chemical and physical processes for flame retardant additives in recycled ABS
    Autor
    Rodriguez, Alicia
    Herrero Villar, ManuelAutoridad UVA
    Asensio Valentín, MaríaAutoridad UVA
    Santiago Calvo, Mercerdes
    Guerrero, Julia
    Cañibano Álvarez, EstebanAutoridad UVA
    Fernández, Maria Teresa
    Nuñez Carrero, Karina CarlaAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    Polymers, 2023, Vol. 15, Nº. 11, 2431
    Abstract
    In the present work, the effectiveness of four non-halogenated flame retardants (FR) (aluminium trihydroxide (ATH), magnesium hydroxide (MDH), Sepiolite (SEP) and a mix of metallic oxides and hydroxides (PAVAL)) in blends with recycled acrylonitrile-butadiene-styrene (rABS) was studied in order to develop a more environmentally friendly flame-retardant composite alternative. The mechanical and thermo-mechanical properties of the obtained composites as well as their flame-retardant mechanism were evaluated by UL-94 and cone calorimetric tests. As expected, these particles modified the mechanical performance of the rABS, increasing its stiffness at the expense of reducing its toughness and impact behavior. Regarding the fire behavior, the experimentation showed that there is an important synergy between the chemical mechanism provided by MDH (decomposition into oxides and water) and the physical mechanism provided by SEP (oxygen barrier), which means that mixed composites (rABS/MDH/SEP) can be obtained with a flame behavior superior to that of the composites studied with only one type of FR. In order to find a balance between mechanical properties, composites with different amounts of SEP and MDH were evaluated. The results showed that composites with the composition rABS/MDH/SEP: 70/15/15 wt.% increase the time to ignition (TTI) by 75% and the resulting mass after ignition by more than 600%. Furthermore, they decrease the heat release rate (HRR) by 62.9%, the total smoke production (TSP) by 19.04% and the total heat release rate (THHR) by 13.77% compared to unadditivated rABS; without compromising the mechanical behavior of the original material. These results are promising and potentially represent a greener alternative for the manufacture of flame-retardant composites.
    Materias (normalizadas)
    Plastics
    Polimers
    Polimeros y polimerizacion
    Recycled products
    Residuos plásticos - Reciclado
    Materias plásticas
    Fireproofing agents
    Fuego
    Fire
    Mechanical properties
    Chemistry
    Physical chemistry
    Materias Unesco
    2206.10 Polímeros
    3312.09 Resistencia de Materiales
    23 Química
    2210 Química Física
    Palabras Clave
    Acrylonitrile Butadiene Styrene
    ISSN
    2073-4360
    Revisión por pares
    SI
    DOI
    10.3390/polym15112431
    Patrocinador
    European Union’s Horizon 2020 - (project Creator 820477)
    Ministerio de Ciencia, Innovación y Universidades, Centro para el Desarrollo Tecnológico y la Innovación (CDTI) - (grant CER-20211009)
    Ministerio de Economía y Competitividad - (project PTQ2020-010968)
    Ministerio de Economía y Competitividad - (project PTQ2021-011628)
    Version del Editor
    https://www.mdpi.com/2073-4360/15/11/2431
    Propietario de los Derechos
    © 2023 The authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/65587
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • DEP32 - Artículos de revista [284]
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