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Definition and classification of carbon black industry
According to records, China is the world's first production of carbon black one of the countries. In ancient times, people burn animal and vegetable oils, pine branches, collected fire smoke cemented black ash, used to modulate ink and black pigments. This is called "soot" black ash is the earliest carbon black. The following is the Chinese report lobby Xiao Bian finishing carbon black industry, the definition and classification.
Carbon black industry definition
Carbon black, also known as carbon black, is an amorphous carbon. (Coal, natural gas, heavy oil, fuel oil, etc.) under the conditions of insufficient air through the incomplete combustion or thermal decomposition of the carbon material (coal, natural gas, fuel oil, etc.) under the conditions of incomplete combustion or heat decomposition . Specific gravity 1.8-2.1. Made from natural gas called "gas black", made of oil called "lamp black", made of acetylene called "acetylene black." In addition to the "slot black", "furnace black." According to the performance of carbon black to distinguish between "reinforcing carbon black", "conductive carbon black", "wear-resistant carbon black" and so on. Can be used for black dyes, used in the manufacture of Chinese ink, ink, paint, etc., is also used to make rubber reinforcing agent. For more information, please refer to the "Report on Market Research and Investment of Carbon Black Industry in 2014-2018" published in the China Report Hall.
Classification of carbon black
By production
Mainly divided into light black, gas black, furnace black and groove black.
By use
Carbon black is divided into pigment carbon black, rubber carbon black, conductive carbon black and special carbon black according to the purpose.
Carbon black pigment - International, according to the coloring ability of carbon black, usually divided into three categories, namely, high-pigment carbon black, pigment carbon black and low pigment carbon black. This classification is usually expressed in three letters, the first two letters that carbon black coloring ability, the last letter that production methods.
Rubber carbon blacks - Rubber carbon blacks were originally classified by particle size, but were later classified by nitrogen surface area. In addition, the name of the carbon black pigment curing speed and structure factors are taken into account, and by the four systems. The first letter represents the vulcanization rate of the compound, with N representing the normal cure rate and S representing the slow cure rate. The last three are Arabic numerals. The first number represents the nitrogen surface area of carbon black, a total of 0 to 9 grades. The second and third figures were assigned by the American Society for Testing and Materials (DIA) responsible for the carbon black and the term D24.41, and reflect a different degree of structure, that is, the approximate black-and-white structure of the carbon black, with certain arbitrariness. In contrast, the larger the number, the higher the structure.
Press Function
Mainly divided into reinforced 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.