The main component of carbon black

Jul 12, 2022

Shanxi Starwin owns five production lines whoes annual capacity could reach to 100,000 Mtons. It can produce more than 30 types of fine carbon black used for plastics, conductivity, paints, inks,coatings etc. besides rebber grade carbon black. 

Under the care and full support from provincial, city government & county government administration, Through 30 years development Shanxi Starwin Science and Technology Co, Ltd spares no efforts to run hard with integrity for more than 30 years.By far, it has become the anationl New Hi-Tech Enterprise Science & Tech private Enterprise of Shanxi prvince circular economit-testing enterprise of Shanxi province. The first EC enterprise of Shanxi provice which intergrates manufacturing, R&D.Marketing and service.

Carbon black is an amorphous carbon. Light, loose and extremely fine black powder with a very large surface area, ranging from 10 to 3000m2/g, is a carbonaceous material (coal, natural gas, heavy oil, fuel oil, etc.) that undergoes incomplete combustion or thermal decomposition under the condition of insufficient air. resulting product. Specific gravity 1.8-2.1. Those made of natural gas are called "gas black", those made of oil are called "lamp black", and those made of acetylene are called "acetylene black". In addition, there are "slot black" and "furnace black". According to the properties of carbon black, there are "reinforcing carbon black", "conductive carbon black", "wear-resistant carbon black" and so on. It can be used as black fuel for the manufacture of Chinese ink, ink, paint, etc., and also used as a reinforcing agent for rubber.

The structure of carbon black is expressed by the degree of aggregation of carbon black particles into chains or grapes. Carbon black composed of agglomerates consisting of the size, morphology of the agglomerates and the number of particles in each agglomerate is called high-structure carbon black. The oil absorption value is commonly used to represent the structure. The larger the oil absorption value, the higher the structure of carbon black, which is easy to form a spatial network channel and is not easy to be damaged. High-structure carbon black has fine particles, dense network chains, large specific surface area, and more particles per unit mass, which is conducive to the formation of a chain-like conductive structure in the polymer. Among many carbon black varieties, acetylene carbon black is the best. Carbon black particles with a broad particle size distribution are more conductive to polymers than carbon black particles with a narrow distribution, and this phenomenon is explained by . For carbon black with a wide particle size distribution, a large number of large-diameter particles is required, and the smaller diameter particles are compensated. The carbon black with the same average particle size distribution has a larger total number of particles than the carbon black with a narrow distribution.

Carbon black generally refers to simple carbon particles. Generally, due to insufficient combustion of organic matter, the hydrogen and oxygen elements in it are converted into water, and the carbon element is not fully burned, and it will be separated from the molecules to form carbon black.