Classification of carbon black

By production

Mainly divided into lamp black, gas black, furnace black and channel black.

By purpose

According to different uses, carbon black is usually divided into carbon black for pigments, carbon black for rubber, conductive carbon black and special carbon black.

Carbon black for pigments—Internationally, according to the coloring ability of carbon black, it is usually divided into three categories, namely, high-pigment carbon black, medium-pigment carbon black and low-pigment carbon black. This classification is usually represented by three English letters, the first two letters indicate the coloring ability of carbon black, and the last letter indicates the production method.

Carbon black for rubber—Carbon black for rubber was originally classified by particle size, but later changed to be classified by nitrogen surface area. In addition, factors such as the vulcanization speed and structure of the carbon black pigment are also taken into consideration when naming, and it consists of four systems. The first English letter represents the vulcanization speed of the rubber compound, N represents the normal vulcanization speed, and S represents the slow vulcanization speed. The last 3 are Arabic numerals. The first number represents the range of carbon black nitrogen surface area, which is listed in 0-9 grades. The second and third numbers are designated by the American Society for Testing and Materials Committee D24.41, which is responsible for carbon black and terminology. They reflect different structural levels, that is, the approximate structure of carbon black is determined, and there is a certain degree of arbitrariness. Relatively speaking, the higher the number, the higher the structure.

By function

Mainly divided into reinforcing carbon black, colored carbon black, conductive carbon black and so on.

By model

Mainly divided into N220, N330, N550, N660, N990, N110, N115, N234, N326, N339, N375, N539, N550, N880, etc.