Effect of nanoclay on the transfer properties of immanent additives in food packages
| Autor: | Nathalie Gontard, Aida Nasiri, Stéphane Peyron, Emmanuelle Gastaldi |
|---|---|
| Přispěvatelé: | Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymer nanocomposite emballage alimentaire 02 engineering and technology Thermal diffusivity nanoparticule Crystallinity 0404 agricultural biotechnology leakproofness [SDV.IDA]Life Sciences [q-bio]/Food engineering General Materials Science Composite material chemistry.chemical_classification Nanocomposite nanoparticle Mechanical Engineering matériau nanocomposite Swelling capacity diffusivity 04 agricultural and veterinary sciences Polymer 021001 nanoscience & nanotechnology 040401 food science Food packaging Linear low-density polyethylene étanchéité chemistry Mechanics of Materials diffusivité 0210 nano-technology |
| Zdroj: | Journal of Materials Science Journal of Materials Science, Springer Verlag, 2016, 51 (21), pp.9732-9748. ⟨10.1007/s10853-016-0208-x⟩ |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-016-0208-x |
| Popis: | Polymer nanocomposites and specifically clay-based nanocomposites are emerging in the food packaging area and are promised to have a growing market. While the advantages of the nanoparticles on the gas barrier properties of the nanocomposites are already well-investigated and confirmed, the effect of these nanoparticles on the migration of other non-nano and potentially toxic components of the polymer packaging has still remained unclear. The present study addressed the effect of nanoclay on the migration of various additives from nanoclay/LLDPE nanocomposite packaging by determining the apparent diffusivity of these additives from the samples in contact with four different types of food simulants that distinctively exhibit hydrophilic and lipophilic characters. The results indicated that apart from the tortuosity effect that influence in a low extent the diffusivity of model migrants, the presence of nanoclays modifies the transport properties of materials as a result of their impact on other factors such as crystallinity and swelling capacity. PLS analysis on the influential geometrical and physical properties additionally revealed that the affinity between the food simulant and the polymer has the dominant effect on determining the order of apparent diffusivity as well as the effectiveness of barrier properties of nanoclays to reduce the diffusivity of additives through food packaging. Such statements suggest a benefit provided by nanoparticles incorporation in terms of the human exposure to plastic additives. |
| Databáze: | OpenAIRE |
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