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Influence of Layered Silicate on the Self-Crosslinking of Polychloroprene and Carboxylated Nitrile Rubber

✍ Scribed by Amit Das; Klaus Werner Stöckelhuber; Gert Heinrich

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
1022 KB
Volume
210
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

The effect of organically modified clay on the properties of self‐crosslinkable carboxylated acrylonitrile‐butadiene rubber (XNBR) and polychloroprene rubber (CR) blend is studied. Results of blends produced without crosslinking agents are compared with conventional sulphur cured compounds. Sulphur cured blends exhibit improved physical properties after the incorporation of organophilic‐modified clay. In contrast, the self‐crosslinked blends do not show any reinforcement after the incorporation of the organoclay. XRD spectra show an intercalation of polymer chain into the gallery gap of the clay in both cases. ATR‐IR, DMA and SEM studies of these composites confirm that organoclay particles constrain the self‐crosslinking mechanism. The influence of the organoclay on the crystallisation of CR is also shown.

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