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Exfoliated/Intercalated Rubber/Organo‐Montmorillonite Nanocomposites: Preparation and Characterization
Author(s) -
Di Gianni Anna,
Colucci Giovanna,
Priola Aldo,
Conzatti Lucia,
Alessi Matteo,
Stagnaro Paola
Publication year - 2009
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200900147
Subject(s) - montmorillonite , materials science , nanocomposite , natural rubber , small angle x ray scattering , characterization (materials science) , composite material , chemical engineering , nanotechnology , scattering , physics , engineering , optics
The preparation of new rubber based nanocomposites by using properly modified organophilic clays is described. A commercial organophilic montmorillonite containing a hydroxylated ammonium ion is reacted with LPBs. The reaction causes a decrease of the polarity of the clay and a great increase of the interlayer distance. The modified organoclays are successfully dispersed into rubber matrices (SBR or BR) by melt blending in an internal batch mixer. SAXS analyses and TEM micrographs revealed the formation of highly exfoliated nanocomposites containing intercalated stacks made of few lamellae.