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Mechanical properties of nano/micro multilayered thermoplastic composites based on PP matrix

We have shown in an earlier work that the addition of both organomodified layered silicates and micrometric calcium carbonate (CaCO3) into a polypropylene (PP) matrix resulted in improved mechanical properties due to synergistic effect of the fillers. In this study, we analyzed the feasibility of pr...

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Published in:Journal of thermoplastic composite materials 2012-11, Vol.25 (7), p.835-849
Main Authors: Aurilia, M., Sorrentino, L., Berardini, F., Sawalha, S., Iannace, S.
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Language:English
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description We have shown in an earlier work that the addition of both organomodified layered silicates and micrometric calcium carbonate (CaCO3) into a polypropylene (PP) matrix resulted in improved mechanical properties due to synergistic effect of the fillers. In this study, we analyzed the feasibility of producing continuous glass fibers composites with micro/nanoreinforced matrix. In particular, either highly filled matrices with micrometric CaCO3 (22, 40, and 50 wt %) or micro/nanoreinforced matrix were used to prepare composites in order to investigate the effect of fillers on both mechanical and thermomechanical properties. The best mechanical performances were obtained when nano- and microsized particles were combined to reinforce the thermoplastic matrices employed in the film stacking manufacturing method. In such systems, the micro/nanocomposites have improved the flexural properties of the continuous fiber laminate, producing an increase of both flexural modulus (60%) and flexural strength (130%). Moreover, storage modulus of glass fibers composite prepared with micro/nanoreinforced matrix was higher than modulus of the composites manufactured with either neat PP matrix or microreinforced matrix in −40/150°C temperature range.
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subjects Calcium carbonate
Matrices
Modulus of rupture in bending
Nanocomposites
Nanomaterials
Nanostructure
Polypropylenes
Thermoplastic resins
title Mechanical properties of nano/micro multilayered thermoplastic composites based on PP matrix
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