For the rubber compounder, the higher aromatic content also helps to :

• promote faster mixing by improving take-up time 

• greater productivity 

• faster mixing times

• lower power consumption per batch.

• Better carbon black dispersion.

For many polymer systems and oil with higher aromatic content imparts better carbon black dispersion and, therefore, helps to achieve better product consistency for statistical process control. It concludes that carbon black dispersion increases as the aromatic content of the oil increases, and that, in general, physical properties improve as the degree of dispersion increases.

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