Various Ways to Reduce Zinc Oxide Levels in S-SBR Rubber Compounds

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Heideman, Geert and Noordermeer, Jacques W.M. and Datta, Rabin N. and Baarle van, Ben (2006) Various Ways to Reduce Zinc Oxide Levels in S-SBR Rubber Compounds. Macromolecular Symposia, 245-246 (1). pp. 657-667. ISSN 1022-1360

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Abstract:Because of environmental concerns, the zinc content in rubber compounds has come under scrutiny. The research described in this article encompasses zinc-oxide, various zinc-complexes and alternative metal oxides as activators for sulphur vulcanisation. Regarding zinc complexes, it can be concluded that zinc- m-glycerolate is a good substitute for ZnO as activator for sulphur vulcanisation in s-SBR rubber, without detrimental effects on the cure characteristics. Of particular interest is also the positive effect of CaO and MgO in s-SBR, while BaO, Cu(II)O and BeO hardly show any activation. The present article also reports on the application of a novel activator for sulphur vulcanisation: ZnClay. Results with s-SBR rubber demonstrate, that this ZnClay can substitute conventional ZnO, retaining the curing and physical properties of the rubber products, while significantly reducing the environmental impact. A reduction of the zinc concentration with a factor 10 to 20 can be realised. Model Compound Vulcanisation studies are used to gain insight into the mechanism of this activator.
Item Type:Article
Copyright:© 2006 Wiley InterScience
Faculty:
Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/72060
Official URL:http://dx.doi.org/10.1002/masy.200651393
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