carbon black
Carbon black is made from incomplete combustion of hydrocarbons (hydrocarbons), and is a highly dispersed black powdery substance; it is composed of carbon elements, and its microcrystals have a quasi-graphite structure and are concentrically oriented. "Particles" consist of polymelts that are nearly spherical or otherwise irregularly shaped. Carbon black can be divided into rubber carbon black, conductive carbon black, pigment carbon black, water-soluble carbon black, carbon black for ink, carbon black for paint, carbon black for paint, carbon black for color masterbatch, carbon black for papermaking, Carbon black for sealants, carbon black for asphalt, etc.
asphalt
Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Pitch can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch: wherein, coal tar pitch is a by-product of coking. Petroleum pitch is the residue after distillation of crude oil. Natural bitumen is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads.
Uses of carbon black for asphalt
Due to the high-speed and overloaded transportation of automobiles, the requirements for road materials are becoming increasingly stringent. Dispersing a small amount of carbon black into asphalt can, on the one hand, deepen the blackness of the asphalt and improve the aesthetics; on the other hand, the viscoelastic properties, wear resistance and mechanical strength of the asphalt will be improved. According to reports, adding 15 parts of carbon black in asphalt can make the pavement life extend from 6 to 9 years to 10 to 15 years. Adding carbon black to asphalt is similar to the reinforcing phenomenon of carbon black in rubber and plastics. Compared with general asphalt pavement, asphalt pavement added with carbon black can suppress the decrease in hardness of the pavement when the temperature rises, prevent ultraviolet aging, and improve crack resistance, fatigue resistance (increased rigidity) and wear resistance. In addition to pavement asphalt, roadbed has the same function, and carbon black is also used in asphalt protective film for buildings, asphalt adhesives, asphalt sealing materials and asphalt paint.
The water-soluble carbon black produced by our company is developed according to the characteristics of asphalt materials. It can be better dispersed in asphalt and has better dispersibility than ordinary carbon black. It has won unanimous praise from customers. The choice of water-soluble carbon black is to do The best choice for asphalt.