Virgin tread compound

Samples were cured from each of the three compounds and then a large numher of physical and chemical properties were examined, including tensile properties, tear strength, resilience, abrasion resistance, ageing, and performance and swelling in test fluids. The results revealed that the abrasion volume of blends of virgin NR and the Novel reclaim is lower than that of the Control reclaim and comparable to the Control NR. Although the tensile properties of the Novel reclaim were found to be lower than Control NR, the workers concluded that they would be acceptable for a tyre tread application and overall it was concluded that the 85 15 Novel reclaim product could be used as an alternative to both the other two compounds for tyre tread manufacture. 

The properties of the fine, devulcanised rubber crumb that results from the process varies according to the types of additives used and their levels, and the crumb has been shown to be used effectively to replace virgin rubber in new rubber compounds. For example, experimental trials have been undertaken with rubber crumb obtained using this technology from car tyre treads incorporated into SBR compounds. The results that were obtained on the resulting vulcanisates were compared to those produced using conventional rubber of the same... 

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