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Exfoliated/Intercalated Rubber/Organo‐Montmorillonite Nanocomposites: Preparation and Characterization |
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| Authors: | Anna Di Gianni Giovanna Colucci Aldo Priola Lucia Conzatti Matteo Alessi Paola Stagnaro |
| Affiliation: | 1. Politecnico di Torino, Dipartimento di Scienza dei Materiali e Ingegneria Chimica, C. so Duca degli Abruzzi 24, 10129 Torino, Italy;2. CNR, Istituto per lo Studio delle Macromolecole ISMAC‐Genova, Via De Marini 6, 16149 Genova, Italy |
| Abstract: | 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.  |
| Keywords: | nanocomposites organoclay polybutadiene rubber SAXS |