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Saferubber Project Reaches Mid-point in its Search for Alternatives to Thiourea-based Rubber Accelerators
2/28/2012 |
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Thiourea based accelerators, of which ETU is the most common, are used for more than 80 years in the vulcanization of polychloroprene rubber as they facilitate the rubber cure system by speeding up the creation of molecular cross links, decreasing process duration and increasing physical properties.
However ETU is classed toxic to reproduction, and thereby a CMR within Europe. Therefore its use could be forbidden or drastically reduced at some time in the future under the REACH regulations.
Since June 2010 the SafeRubber (this is the name of the European Community funded project) Consortium, has been working on a suitable and safer alternative to ETU.
The initial work concentrated on research into the chemical mechanism of the vulcanization of polychloroprene using ETU, a mechanism which has never been fully understood or proven. This enabled the Consortium to design and synthesize several alternative molecules which it is hoped will be safer than ETU. These molecules are now being optimized in polychloroprene compounds before being scaled up to an industrial process.
The mid-point results of the three-year research based project are available on the project's web site: www.saferubber.eu, and through the dissemination activities of all the Consortium's partners. Raw materials suppliers, distributors, compounders, converters and users of polychloroprene rubber who wish to stay informed of further progress on the research are asked to fill out a reply form on the SafeRubber website.
The partners in the SAFERUBBER research consortium are:
• Assocomaplast, Italian Plastics and Rubber Processing Machinery and Molds Manufacturers' Association
• Federplast.be, Belgian Plastic and Rubber Products Association
• BRPPA, British Rubber and Polyurethane Products Association
• ETRMA, European Tyre and Rubber Manufacturers Associations
• Clwyd Compounders Ltd, UK
• Robinson Brothers Ltd, UK
• MGN Transformaciones del Caucho, S.A., Spain
• Mixer S.p.A , Italy
• Grand Synthesis Latvia Ltd
• University of Milano-Bicocca, Italy
• Norner Innovation AS, Norway
• MaTRI, UK Materials Technology Research Institute
The SafeRubber research project has received funding from the European Community's Seventh Framework Programme managed by REA-Research Executive Agency http://ec.europa.eu/research/rea ([FP7/2007-2013] [FP7/2007-2011]) under grant agreement nº [243756-2]" |
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