Recently, the interest in the use of different mineral fillers in the composition of tyre rubbers, which broadens the possibilities of improving their output characteristics, has increased considerably. One of the most interesting and promising mineral fillers for rubbers is shungite. Shungite is now viewed as a microheterogeneous composite material containing finely dispersed phases of carbon and silicon dioxide. The main reserves of shungite filler worldwide are concentrated in the CIS: in Kareliya (the Zagozhinsk field) and in southern Kazakhstan. The products of both fields have similar contents of carbon and silicon dioxide but differ considerably in manufacturing technology (grinding method). The work on a comparative study of mineral shungite fillers has shown the promise of using them in the composition of tyre rubbers, both from the viewpoint of lowering costs and for improving the output characteristics of the tyres. In the present work, the effect of shungite fillers from different fields on the properties of standard and typical tyre rubbers of different composition has been studied. The results obtained enable us to recommend the application of shungite fillers from the Kareliya and Kazakhstan fields in the following formulations: 1. coating rubbers for textile cord of lorry and wire insulation; 2. rubbers for the bottom of the first layer of lorry tyres and 3. tread rubbers for radial and diagonal lorry tyres, agricultural tyres, and large-sized tyres.
Properties of shungite fillers from different fields and their effect on the properties of rubbers
Eigenschaften der Schungit-Füllstoffe verschiedener Fundstätten und ihre Einflüsse auf die Gummieigenschaften
International Polymer Science and Technology ; 36 , 7 ; T27-32
2009
6 Seiten, 7 Tabellen, 2 Quellen
Article (Journal)
English
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