Volume 128, Issue 4 pp. 2414-2423
Article

A new liquid rubber-assisted dispersion of organoclay in carbon black filled carboxylated acrylonitrile–butadiene rubber matrix

Praveen Sreenivasan

Corresponding Author

Praveen Sreenivasan

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India===Search for more papers by this author
Debdatta Ratna

Debdatta Ratna

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

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Pradeesh Albert

Pradeesh Albert

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

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Jayendran Somashekaran

Jayendran Somashekaran

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

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Rohidas Raut

Rohidas Raut

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

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Bikash Chandra Chakraborty

Bikash Chandra Chakraborty

Naval Materials Research Laboratory, Shil-Badlapur Road, Anandnagar, Mumbai 421506, Maharashtra, India

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First published: 09 August 2012
Citations: 4

Abstract

A novel route for the preparation of rubber–carbon black–nanoclay (NC) nanocomposites with XNBR as a matrix and a carboxyl-terminated copolymer of butadiene and acrylonitrile (CTBN) as a low-molecular-weight modifier for commercially available NC is presented in this article. The addition of NC to the rubber (after the NC was mixed with CTBN in a 2 : 1 ratio) showed remarkable improvement in the mechanical properties. The clay loading was varied from 0 to 10 parts per hundred rubber (phr). An amount of 20 phr N330 black was incorporated into all of the formulations. The properties were compared with those of a control XNBR compound having only 20 phr N330. X-ray diffraction revealed a combination of a high level of intercalated and exfoliated structures in such nanocomposites. Transmission electron microscopy confirmed the improvement in dispersion as a result of addition of CTBN. A 127% increase in the tensile strength and a 53% increase in the elongation at break were achieved. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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