Carbon black (CB), CAS number 1333-86-4, is generically referred to as a group of intensely black, small-sized, and finely divided forms of amorphous carbon or para-crystalline carbon particles grown together to form aggregates of different sizes and shapes.

Carbon black nanoparticle aggregates have a spheroidal shape, typically 10 to 100 nm in diameter, with an amorphous core surrounded by a shell of stacked graphene-like domains each made of a nanometric stack of polyaromatic sheets. They vary enormously in particle size depending on the production process and they generally have a high surface-area-to-volume ratio.

Carbon black is valued for its unique physical properties, excellent electrical conductivity, and resistance to wear. Conductive carbon black (CCB) nanomaterials are the most reliable and cost-effective for producing conductive compounds, normally as one of the composite ingredients. The conductivity efficiency of carbon blacks is related to their particle size, structure, and porosity. CCB has a large specific surface area and excellent conductivity.

Carbon black is the main example of a filler whose own surface can interact strongly with most polymer types without great effort of surface treatments. Carbon blacks are widely used in elastomers and plastics as fillers to modify the mechanical, electrical, and optical properties. When mixed into a polymer matrix even in small amounts, CB increases the mechanical strength and forms a conductive network which greatly increases the conductivity of the polymer plastic. Carbon black has also been used in dye sensitized solar cells, batteries and supercapacitors for energy storage, environmental protection applications, and low-cost electrochemical sensors.

General Information

Carbon Black Nanopowder