Carbon Black

Details:

Carbon black as pigment that used in coatings & paints, inks, plastics and etc is called pigment carbon black. Pigment carbon black can also provide function of conductivity, electrostatic shielding, shielding against UV, preventing resin’ aging in application for coatings & paints, inks, plastics. Hence, in a broad sense pigment carbon black is called special carbon black (as distinguished from carbon black that used in rubber). According to the forecast and appraisal of Notch Group in the USA, the productive capacity of carbon black in the world in 2007 is 10.16 million tons and it can grow to more than 12 million tons in 2012. 90% are carbon black for use in tire and rubber industry. The rest part about 10% is used as pigment. Characteristics of Pigment Carbon Black 1. Comparing with other pigment, carbon black is better in tinting strength and hiding power. 2. Comparing with other pigment, carbon black is good in durability on heat, chemicals and light. 3. Carbon black is difficult to disperse stably in the organic resin system because its particle size only ranges from a few nanometers to dozens of nanometers, and porosity reaches 90%, moreover, it is inorganic materials. However, carbon black after strict control and treated with special craft can be well dispersed in paints, inks and plastic system. 4. Comparing with rubber carbon black, pigment carbon black has higher and more specific requirements in blackness、tinting strength、surface activity、conductivity、ash、light transmittance of toluene、dispersibility、fluidity and other technical indexes.