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Styrene–butadiene rubber/cellulose II/clay nanocomposites prepared by cocoagulation—mechanical properties
Author(s) -
Zine Carmen Lane Giri,
da Conceição Alberto Justino,
Visconte Leila L. Y.,
Ito Edson Noriyuki,
Nunes Regina C. R.
Publication year - 2010
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.33240
Subject(s) - materials science , styrene butadiene , nanocomposite , ultimate tensile strength , cellulose , composite material , natural rubber , elastomer , dispersion (optics) , chemical engineering , polymer , styrene , copolymer , engineering , physics , optics
In this work, nanocomposites of styrene butadiene rubber (SBR), cellulose II, and clay were prepared by cocoagulation of SBR latex, cellulose xanthate, and clay aqueous suspension mixtures. The incorporated amount of cellulose II was 15 phr, and the clay varied from 0 to 7 phr. The influence of cellulose II and clay was investigated by rheometric, mechanical, physicochemical, and morphological properties. From the analysis of transmission electron microscopy (TEM), dispersion in nanometric scale (below 100nm) of the cellulosic and mineral components throughout the elastomeric matrix was observed. XRD analysis suggested that fully exfoliated structure could be obtained by this method when low loading of silicate layers (up to 5 phr) is used. The results from mechanical tests showed that the nanocomposites presented better mechanical properties than SBR gum vulcanizate. Furthermore, 5 phr of clay is enough to achieve the best tensile properties. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011