By use
carbon black According to different uses, it is generally divided into carbon black for pigment, carbon black for rubber, conductive carbon black and carbon black for special use.
Carbon black for pigments - Generally, carbon black can be divided into three categories according to its coloring ability, namely high color carbon black, medium color carbon black and low color carbon black. This classification is usually represented by three English letters, the first two letters represent the coloring ability of carbon black, and the last letter represents the production method.
Carbon black for rubber - Carbon black for rubber was originally classified by particle size, but was later classified by nitrogen surface area. In addition, factors such as vulcanization speed and structure of carbon black pigment are also taken into account when naming, which is composed of four systems. The first English letter represents the curing rate of rubber compound, N represents the normal curing rate, and S represents the slow curing rate. The last three are Arabic numerals. The first number represents the carbon black nitrogen surface area range, which is classified into 0~9 grades. The second and third figures are determined by Committee D24.41 ZI of American Society for Testing and Materials, which is responsible for carbon black and terminology, reflecting different structural degrees, that is, the approximate high and low structure of carbon black is determined, which is somewhat arbitrary. Relatively speaking, the larger the number, the higher the structure.
By function
It is mainly divided into reinforced carbon black, colored carbon black, conductive carbon black, etc.
