Volume 128, Issue 4 pp. 2556-2562
Article

Influence of nanofillers on the sorption and diffusion characteristics of the solvent in vulcanized hydrogenated nitrile rubber nanocomposite

Anusuya Choudhury

Anusuya Choudhury

Rubber Technology Centre, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India

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Anil K. Bhowmick

Corresponding Author

Anil K. Bhowmick

Rubber Technology Centre, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India

Indian Institute of Technology, Patna 800013, India===Search for more papers by this author
Matthias Soddemann

Matthias Soddemann

Lanxess Deutschland GmbH, 41538 Dormagen, Germany

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First published: 03 November 2012
Citations: 5

Abstract

The impact of nanofillers on the swelling characteristics of hydrogenated nitrile butadiene rubber (HNBR)–clay nanocomposites was thoroughly investigated. The nanocomposites exhibited a dramatic decrease in the solvent uptake compared to the unfilled HNBR even at very low filler loadings because of the molecular dispersion of the organically modified montmorillonite and sepiolite and strong interaction between the HNBR and clays. The dispersion of the clay layers was verified by transmission electron microscopy. In addition, the clay content was found to influence the solvent uptake properties of the HNBR–clay nanocomposites. The diffusion and sorption behavior of chloroform in the HNBR–clay nanocomposites at different loadings was studied by a conventional weight gain method. The diffusion results were analyzed in terms of the simple Fickian model. Finally, Arrhenius and thermodynamic parameters were evaluated from these diffusion data. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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