What is white carbon black 

1. What is white carbon black


What is white carbon black? White carbon black is a general term for white powdery X-ray amorphous silicic acid and silicate products. It mainly refers to precipitated silica, fumed silica and ultrafine silica gel. It also includes powdered synthetic aluminum silicate and calcium silicate. Silica is a porous substance, soluble in caustic alkali and hydrofluoric acid, but insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-combustible, tasteless, odorless, and has good electrical insulation.



Second, the use of white carbon black


       The main uses of white carbon black:


　　1. Rubber products: White carbon black is used to replace carbon black in colored rubber products for reinforcement to meet the needs of producing white or translucent products. White carbon black also has super adhesion, tear resistance, heat resistance and aging resistance at the same time, so it can also replace part of carbon black in black rubber products to obtain high-quality rubber products, such as off-road tires and engineering tires. , Radial tires, etc.


　　2. Agricultural chemical products: In agricultural chemical products, such as pesticides and high-efficiency spraying fertilizers, white carbon black is used as carrier or diluent, disintegrant, and disintegrant. Because it has super high surface area, high adsorption capacity, easy suspension, good affinity and chemical stability. Silica can remain unchanged for a long time even under rain, washing and hot conditions.


3. Daily chemical products: white carbon black is used as a transparent, colorful and opaque toothpaste as a filler and abrasive in daily chemical products. Usually this kind of toothpaste has good flexibility and dispersibility, and the paste is smooth, soft and abrasive. Well, it won't erode the toothpaste tube. It can keep the drug toothpaste stable, especially with good compatibility with fluoride, and can avoid the disadvantage of calcium salt as an abrasive to produce insoluble salt.


　　4. Cementing agent: White carbon black is used in adhesives made of natural rubber or synthetic rubber to provide thixotropy and reinforcement. At the same time, due to its stretchability, it can also improve adhesion, and is of high quality and low price.


　　 5. Anti-caking agent: White carbon black can be used in some products to improve free flow, such as grass fertilizer, fungicide, laundry bleach, phenol and urea plastic products, rubber sulfur and anti-caking mixtures.


　　6. Paper filler: White carbon black as a paper filler can improve the paper's resistance to ink penetration and mechanical strength, increase whiteness, and reduce unit weight. It can effectively reduce the weight of paper, reduce production costs, and improve paper performance.


       In addition, white carbon black can also be used in many industries such as fire-fighting agents, feed, cosmetics, matting agents, pigments, and paints.