An Alternative Technology for the Manufacture of Rubber Articles from Motor Vehicle Tyre Recycling Products

Abstract

The prospects of using powder technology to manufacture rubber articles and the features of different variants of powder technology using powder and block rubbers are considered. Examples of the practical use of powder technology at enterprises of the rubber industry are given. Powder press technology for the manufacture of rubber articles from rubber crumbs obtained by recycling used tyres is presented. Variants for the activation of composites to be pressed are examined. It is shown that the use of microwave radiation to activate rubber crumbs directly before the manufacture of articles from them makes it possible to produce products with improved properties. The strength of vulcanisates obtained from rubber crumbs activated by microwave radiation is 30% higher owing to the fact that, in the case of microwave heating, the rubber crumbs are heated evenly throughout the article and there is a considerable reduction in the vulcanisation time. Powder press technology is recommended for the manufacture of various moulded rubber articles at small enterprises not possessing standard rubber mixers.

Keywords

rubber rubber mix powder technology used tyres rubber crumbs activation microwave radiation recycled vulcanisates product quality

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