The basic property is the particle size (10 to 500 nm) that can be measured by direct methods or indirectly by surface area measurement such as absorption of liquids or gases: CTAB,iodine, nitrogen. Each method leads to a different value. Contrary to the CTAB index, the nitrogen absorption measures both porosity (inaccessible for rubber) and external surface area. Current surface areas range from 10 m2/g to 150 m2/g. Specialty Carbon Black.
The smallest particle sizes lead to the highest surface areas and the corresponding carbon blacks are the most reinforcing but also the most difficult to disperse.
The aggregate sizes (40 to 600 nm) and structures (voids, number of particles) are characterized by oil absorption, currently dibutylphthalate or DBP absorption with values ranging from 30 to 150 cm3/100 g. Pigment Carbon Black
Beilum Carbon Chemcial Limited
Address: Shizhong Industry Area |Zaozhuang | 277101 |Shandong | P.R.China.
TEL: +86(632) 899 2979
FAX: +86(632) 899 2936
www.beilum.com / www.beilumcarbon.com
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