Carbon-silica dual phase filler,a new generation reinforcing agent for rubber part IX.application to truck tire tread compound

摘要

The application of carbon-silica dual phase fillers (CSDPF) to natural rubber compound was investigated.It was found that these new fillers give significantly bettern overall performances in comparison with the conventional fillers-carbon black and silica.In a typical truck-tread compound,due to its high polymer-filler interaction and lower filler-filler interaction,the CSDPF E shows a comparable laboratory abrasion resistance and more than 40% reduction in tan delta at 70 degC,a parameter for rolling resistance,compared compound filled with its carbon black counterpart,N110.These properties can,to a certaind egree,be further improved by the addition of a small amount of coupling agent TESPT.In the case of wet skid resistance measured using the British Portable Skid Tester,the data show that CSDPF gives better performance than the conventional fillers,with and without coupling agent.