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Role of mixing parameters in the preparation of poly(ethylene vinyl acetate) nanocomposites by melt blending
Author(s) -
Tillekeratne Mangala,
Jollands Margaret,
Cser Ferenc,
Bhattacharya Sati N.
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22755
Subject(s) - nanocomposite , materials science , ethylene vinyl acetate , ultimate tensile strength , mixing (physics) , composite material , polymer , diffusion , montmorillonite , sodium silicate , modulus , vinyl acetate , chemical engineering , polymer chemistry , thermodynamics , copolymer , physics , quantum mechanics , engineering
Polymer/layered‐silicate nanocomposites have gathered momentum as cost‐effective and versatile materials since the middle of the 20th century. Many publications discuss the chemistry of organomodification and properties of nanocomposites, but relatively few deal with the significance of processing conditions. This article takes into account three mixing parameters and discusses the contribution of each toward nanocomposite formation. Organomodified natural sodium‐type bentonite clay was used in this study. The nanocomposites formed were characterized by X‐ray diffraction and mechanical property tests. Response surface regression was used to optimize the tensile modulus. The analysis shows that nanocomposite formation is promoted by a diffusion mechanism and that the interactions of parameters are as important as individual parameters. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 2652–2658, 2006