Thermoplastics and Carbon Black

Contrary to rubber materials, CB is not used in thermoplastics for reinforcement purposes. There are essentially three reasons for CB addition to a thermoplastic  

Carbon Black Type Mean Particle Diameter (nm) N, Specific Area (mVg) CTAB (mVg) DBPA (cm /lOO g) Tinting Strength 

As can be seen, there are correlations between the size of elementary particles, the structure of the aggregate and the coloring capacity of CB, but the more complex the aggregates the more difficult the dispersion process. The UV absorption capabilities of CB are used to protect polyolefins against light exposure a few percentages offer an adequate protection without much modification of rheological and mechanical properties. 

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