Carbon black, also known as carbon black, is an amorphous carbon. Light, loose and very fine black powder with a very large surface area ranging from 10 to 3000 m2/g. It is a carbonaceous material (coal, natural gas, heavy oil, fuel oil, etc.) that undergoes incomplete combustion or thermal decomposition under conditions of insufficient air. And the product. The proportion is 1.8-2.1. It is called "gas black" made of natural gas, "light black" made of oil, and "acetylene black" made of acetylene. In addition, there are "slot black" and "furnace black". According to the performance of carbon black, there are "reinforcing carbon black", "conductive carbon black", "wearing carbon black" and the like. It can be used as a black dye for the manufacture of Chinese inks, inks, paints, etc. It is also used as a reinforcing agent for rubber.

Applications in carbon black include the rubber industry, the conductive industry, the dye industry, the tire industry, the plastics industry, and the ink industry.

Main classification

By production

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

By purpose

Carbon black is generally classified into carbon black for coloring, carbon black for rubber, conductive carbon black, and special carbon black depending on the application.

Carbon black for coloring - Internationally, according to the coloring ability of carbon black, it is generally classified into three types, namely, high color carbon black, medium color carbon black, and low color carbon black. This classification is usually expressed in three English letters, the first two letters indicating the coloring ability of carbon black, and the last letter indicating 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 the vulcanization rate and structure of the carbon black pigment are taken into account in the naming, and are composed of four systems. The first English letter represents the vulcanization rate of the compound, with N representing the normal vulcanization rate and S representing the slow vulcanization rate. The last three are Arabic numerals. The first number represents the range of carbon black nitrogen surface area, which is listed in the order of 0-9. The second and third figures are specified by the American Society for Testing and Materials, which is responsible for carbon black and the term D24.41. It reflects the different degree of structure, that is, the approximate height and structure of carbon black, and has certain arbitrariness. Relatively speaking, the larger 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 and so on.