Print Email Facebook Twitter Various ways to reduce zinc oxide levels in S-SBR rubber compounds Title Various ways to reduce zinc oxide levels in S-SBR rubber compounds Author TNO Industrie en Techniek Heideman, G. Noordermeer, J.W.M. Datta, R.N. van Baarle, B. Publication year 2006 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. Subject ActivationMetal-oxidesSulphur-vulcanisationZinc-complexesZinc-oxideZn-clay To reference this document use: http://resolver.tudelft.nl/uuid:d58a3874-f93a-42a3-961f-79c30e44ca43 DOI https://doi.org/10.1002/masy.200651393 TNO identifier 239746 Publisher Wiley ISSN 1022-1360 Source Macromolecular Symposia, 245-246 (245-246), 657-667 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.