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Elaborating more realistic model microplastics by simulating polypropylene's environmental ageing.
Glais, Margaux; Falher, Thierry; Deniau, Elise; Chassenieux, Christophe; Lagarde, Fabienne.
Afiliación
  • Glais M; Institut des Molécules et Matériaux du Mans, IMMM - UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, Le Mans Cedex 9 72085, France; CT-IPC Centre Technique Industriel de la Plasturgie et des Composites, Pôle Universitaire de Montfoulon, Damigny 61250, France.
  • Falher T; Institut des Molécules et Matériaux du Mans, IMMM - UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, Le Mans Cedex 9 72085, France; CT-IPC Centre Technique Industriel de la Plasturgie et des Composites, Pôle Universitaire de Montfoulon, Damigny 61250, France.
  • Deniau E; Institut des Molécules et Matériaux du Mans, IMMM - UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, Le Mans Cedex 9 72085, France.
  • Chassenieux C; Institut des Molécules et Matériaux du Mans, IMMM - UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, Le Mans Cedex 9 72085, France.
  • Lagarde F; Institut des Molécules et Matériaux du Mans, IMMM - UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, Le Mans Cedex 9 72085, France. Electronic address: fabienne.lagarde@univ-lemans.fr.
Ecotoxicol Environ Saf ; 283: 116769, 2024 Sep 15.
Article en En | MEDLINE | ID: mdl-39079403
ABSTRACT
In this work, we propose a new protocol for producing model microplastics from an industrial polymer and compare it to a conventional method, cryomilling. Polypropylene industrial pellets were chosen due to their widespread production and frequent presence in the environment, making them a notable source of microplastics. Both protocols start with aging under Ultra-Violet light of the pellets but differ in the subsequent mechanical stress applied-strong vs. soft-to break down the photodegraded pellets into microplastics. All generated particles were fully characterized in terms of size, shape, oxidation rate, and stability in aqueous media. Microplastics produced via cryomilling exhibited significant size and oxidation heterogeneity and tended to aggregate in water. Although the new protocol involving soft mechanical stress required a longer preparation time, it simulated more accurately the environmental degradation of raw plastic. This method successfully produced oxidized microplastics with a controlled size distribution centered around 50 µm which remained stable in water without stabilizers.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polipropilenos / Contaminantes Químicos del Agua / Microplásticos Idioma: En Revista: Ecotoxicol Environ Saf Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polipropilenos / Contaminantes Químicos del Agua / Microplásticos Idioma: En Revista: Ecotoxicol Environ Saf Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Países Bajos