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Article Dans Une Revue Composites Science and Technology Année : 2011

Maya Blue as natural coloring fillers in a multi-scale polymer-clay nanocomposite

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Résumé

The purpose of this article is to understand the underlying mechanisms of the potential of nanohybrids. Two types of fillers were dispersed in a biocompatible organic matrix, poly-(hydroxyethyl acrylate) (PHEA): either a natural fibrous clay (pristine sepiolite), or a natural nanopigment (Maya Blue). In comparison with the pure polymer, the mechanical properties of the composites have been already greatly improved with the addition a small amount of Maya Blue. However the PHEA/pristine sepiolite nanohybrid gives better results than the PHEA/Maya Blue for the same ratio of fillers. The stress-strain curves (with unloading and reloading) show that the presence of indigo modifies the interactions between the filler and the matrix. These analyses demonstrate that there is a direct correlation between the filler/matrix local interactions, the dispersion of the fillers and some macroscopical mechanical properties.
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Dates et versions

hal-00627495 , version 1 (28-09-2011)

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Nicolas Volle, Laeticia Challier, Alain Burr, Francoise Giulieri, Sophie Pagnotta, et al.. Maya Blue as natural coloring fillers in a multi-scale polymer-clay nanocomposite. Composites Science and Technology, 2011, 71 (15), pp.1685-1691. ⟨10.1016/j.compscitech.2011.07.009⟩. ⟨hal-00627495⟩
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