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Ethylene vinyl acetate/nanoclay‐based pigment composites: Morphology, rheology, and mechanical, thermal, and colorimetric properties
Author(s) -
Marchante Veronica,
Benavente Veronica,
Marcilla Antonio,
MartínezVerdú Francisco Miguel,
Beltrán Maria Isabel
Publication year - 2013
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.39422
Subject(s) - materials science , ethylene vinyl acetate , copolymer , composite material , vinyl acetate , rheology , chemical engineering , morphology (biology) , polymer chemistry , polymer , biology , genetics , engineering
In this study, a new type of nanopigment, obtained from a nanoclay (NC) and a dye, was synthesized in the laboratory, and these nanopigments were used to color an ethylene vinyl acetate (EVA) copolymer. Several of these nanoclay‐based pigments (NCPs) were obtained through variations in the cation exchange capacity (CEC) percentage of the NC exchanged with the dye and also including an ammonium salt. Composites of EVA and different amounts of the as‐synthesized nanopigments were prepared in a melt‐intercalation process. Then, the morphological, mechanical, thermal, rheological, and colorimetric properties of the samples were assessed. The EVA/NCP composites developed much better color properties than the samples containing only the dye, especially when both the dye and the ammonium salt were exchanged with NC. Their other properties were similar to those of more conventional EVA/NC composites. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2987–2994, 2013