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Study of EPDM/PP polymeric blends : mechanical behavior and effects of compatibilization

type de publication      article dans une revue nationale avec comité de lecture
date de publication 2008
auteur(s) Bouchart Vanessa; Bhatnagar Naresh; Brieu Mathias; Ghosh Anup; Kondo Djimédo
journal (abréviation) Comptes Rendus Mécanique (Compt Rendus Mec)
volume (numéro) 336 (9)
pages 714 – 721
résumé A blend of Ethylene Propylene Diene Monomer (EPDM) rubber reinforced by polypropylene (PP) particles has been processed and its hyperlastic behavior has been characterized under cyclic uni-axial tensile tests. The experimental results show a signicant effect of the fraction of polypropylene particles (10%, 25% and 30% by weight). Moreover, from another serie of tests conducted on materials containing compatibilizers at different mass concentration, it is observed that the introduction of a compatibilizer increases the rigidity of the blends and affects notably their macroscopic behavior. These observations are interpreted as a consequence of the modifcation at microlevel of adherence between particles and matrix phases. The use of a nonlinear micromechanical model allows to confirm this interpretation
mots clés Solids and structures; Reinforced elastomers; Experimental study; Compatibilizer; Particles-matrix adherence
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