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Properties of organo‐clay/natural rubber nanocomposites: Effects of organophilic modifiers
Author(s) -
Hrachová Jana,
Komadel Peter,
JochecMošková Daniela,
Krajči Juraj,
Janigová Ivica,
Šlouf Miroslav,
Chodák Ivan
Publication year - 2012
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.37602
Subject(s) - nanocomposite , natural rubber , materials science , intercalation (chemistry) , composite material , scanning electron microscope , transmission electron microscopy , dynamic mechanical analysis , hysteresis , polymer , chemistry , nanotechnology , organic chemistry , physics , quantum mechanics
The effect of various modifiers on the structure and properties of clay/natural rubber nanocomposites are investigated with the aim to evaluate the effect of size and structure of the modifier. Nanocomposites are prepared by melt intercalation method. Mechanical properties of the cured rubber containing nanoclay are compared with the reference compound without the filler. No improvement of mechanical properties is observed for small organic cations; however, stress and strain at break of clay/rubber nanocomposites increase with rising number of octyl chains in the interlayer spaces of organo‐clays. Concerning organo‐cations with the same number of carbon atoms, more effective are the modifiers with several shorter carbon chains compared to those with one long chain. The composites exhibit hybrid structure of nanocomposite and microcomposite as revealed by X‐ray powder diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The details of the structure are supported by DMTA and hysteresis measurements. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013