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Morphology and thermo mechanical properties of pp/ps nanocomposites

  • Research Article
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International Journal of Plastics Technology

Abstract

The immiscible polypropylene (PP)/polystyrene (PS) blends and theirs organoclay 10A (Cloisite10A) nanocomposites with different contents were prepared via melt blending into a co-rotating twin screw extruder and the test samples were molded by injection molding. The 10A is an anisotropic layered silicate and the effect PP/PS ratio, 10A different content on melt and crystallization enthalpy were determined by DSC. The T g , storage modulus (E’), and tanδ measurements were obtained by DMA. The domains reduction of PS in the PP with addition 10A was investigated by Scanning Electronic Microscope (SEM). There is a decrease in PS particles size in PP/PS blends containing 10A. The crystallinity degree of PP seems to reduction with the addition of PS phase and 10A. The E’ of the PP/PS 90/10/0 blends showed slightly changes between Neat PP and PP/PS/10A nonetheless the nanocomposites 3 and 5 %wt had a small rise in the storage modulus between −50 and 0 °C.

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Aknowledgments

The authors thanks CAPES and CNPQ for the financial support, Braskem and Innova S.A. for supplying materials.

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Authors and Affiliations

  1. Programa de Pós Graduação em Ciência dos Materiais – PGCIMAT/UFRGS, Institute of Chemistry, 91501-970, Porto Alegre, Rio Grande do Sul/RS, Brazil

    Rodrigo P. da Silva & César P. Neto

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  1. Rodrigo P. da Silva
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  2. César P. Neto
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Correspondence to Rodrigo P. da Silva.

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da Silva, R.P., Neto, C.P. Morphology and thermo mechanical properties of pp/ps nanocomposites. Int J Plast Technol 18, 125–134 (2014). https://doi.org/10.1007/s12588-014-9069-9

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  • DOI: https://doi.org/10.1007/s12588-014-9069-9

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