Effect of different ratio natural rubber/ butadiene rubber, carbon black/silica and types of carbon black on physical properties of tire tread for off road application
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Date
2017-06
Authors
Siti Nurul Izzati Bt Kudori
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Abstract
Effect of different ratio natural rubber/butadiene rubber, carbon black/silica and types of carbon black on physical properties of the tire tread for off road application were studied. The compounding was prepared by using internal mixer and two roll mill. The curing characteristic were measured by using Rheometer100 Mosanto. Tensile test, tear test, abrasion resistance index and hardness to analyse the mechanical properties of the rubber. There are three different ratio of the carbon black/silica which are S70N228/42 (28/42), S70N230/44 (30/44) and S70N232/48 (32/48). S70N232/48 has the optimum value in abrasion resistance and tear strength due to the stronger polymerfiller interaction in the compound. The different ratio of carbon black did not give a significant effect on hardness. In addition, two ratio of natural rubber/butadiene rubber are investigated which are 70/30 and 80/20 respectively. Natural rubber/butadiene rubber with 80/20 higher mechanical properties compared to the ratio of natural rubber/butadiene rubber 70/30 due to good interaction between the filler and polymer. Furthermore, two types of carbon black were also being studied which are N220 and N134. N134 had a good in mechanical properties due to the higher surface area compared to the N220.