Abstract
The effects of two types of CBs (N330 and N550) and also two kinds of plasticizer, paraffinic and aromatic oils (PO and AO), on the ultimate characteristics of Natural Rubber (NR) were comparatively studied. The comparative study was performed using rheometric behavior, fatigue life (in tensile mode), aging behavior (168 hours at 70 °C), and compression set analyses. Obtained results showed that there is an optimum ratio of CBN330/CBN550 fillers and also an optimum ratio of PO/AO plasticizers which have the best influence on the properties, especially on the fatigue life. It is found out that synergistic effects of the CBN330 and CBN550 fillers, and also PO and AO plasticizers, due to better dispersion and chain mobility of rubber chains, are the main reason for enhanced outcomes. Another point is that to achieve more superior behavior for this kind of compound, the starting point could be the consequences of this paper. The main goal of this work is to develop an enhanced formula for a NR-based industrial compound.
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