Polymers and Polymer Composites

NANOCOMPOSITES BASED ON THERMOPLASTIC ELASTOMERIC BLENDS OF STYRENE ACRYLONITRILE AND ETHYLENE VINYL ACETATE: EFFECT OF NATURE AND LOADING OF NANOCLAYS AND DYNAMIC VULCANIZATION

May 1, 2006 By: Patel J; Maiti M; Naskar K; Bhowmick A K Research article

Title: NANOCOMPOSITES BASED ON THERMOPLASTIC ELASTOMERIC BLENDS OF STYRENE ACRYLONITRILE AND ETHYLENE VINYL ACETATE: EFFECT OF NATURE AND LOADING OF NANOCLAYS AND DYNAMIC VULCANIZATION
Page Range: p.515-525
Author(s): Patel J; Maiti M; Naskar K; Bhowmick A K
File size: 193K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 14
Issue No: No. 5

Abstract
A thermoplastic elastomer based on a 30:70 w/w/ styrene-acrylonitrile: ethylene vinyl acetate blend was prepared. In order to improve the strength of the blend, two types of nanoclay (grades of Cloisite) were added in variable loading levels. Improved levels of mechanical properties were achieved with Cloisite NA at 4 phr loading. These results were explained in terms of the morphology of the nanocomposites as studied by X-ray diffraction, atomic force microscopy and X-ray dot-mapping. The dynamic mechanical properties and the diffusion behaviour of acetone through the resultant nanocomposites corroborated the observations on the static mechanical properties. It was demonstrated that dynamic vulcanisation significantly improved the mechanical properties of nanoclay reinforced SAN/EVA blends. 40 refs.


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