What is silica
1. What is white carbon black?
What is silica, silica 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, Also includes powdered synthetic aluminum silicate and calcium silicate, etc. Silica is a porous material, soluble in caustic alkali and hydrofluoric acid, but insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-flammable, odorless, odorless, with good electrical insulation.
Second, the use of white carbon black
       Main uses of silica:
1. Rubber products: White carbon black is used to replace carbon black for reinforcement in colored rubber products to meet the needs of producing white or translucent products. Silica also has super adhesion, tear resistance and heat resistance and anti-aging properties, so it can also replace part of carbon black in black rubber products to obtain high-quality rubber products, such as off-road tires, engineering tires , radial tires, etc.
2. Agricultural chemical products: In agricultural chemical products, such as pesticides, high-efficiency spraying fertilizers, etc., silica is used as a carrier or diluent, disintegrating agent, and disintegrating agent. Because it has a super high surface area, very high adsorption, easy to suspend, good affinity and chemical stability. Silica remains unchanged for long periods of time even in rain, wash down and hot conditions.
3. Daily chemical products: transparent, colored and opaque toothpaste with white carbon black as 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, no abrasive toothpaste tube body. It can keep the medicinal properties of the toothpaste stable, especially has good compatibility with fluoride, and can avoid the disadvantage of insoluble salts produced by calcium salts as abrasives.
4. Binder: Silica is used in adhesives made of natural rubber or synthetic rubber to provide thixotropy and reinforcement. At the same time, due to its extensibility, it can also improve adhesion, and it is of high quality and low price.
5. Anti-caking agent: Silica can be used in some products to improve free flow, such as lawn fertilizers, fungicides, laundry bleach, phenolic and urea plastic products, manufacturing rubber sulphur and anti-caking mixtures.
6. Papermaking filler: Silica as paper filler can improve the paper's resistance to ink penetration and mechanical strength, increase whiteness and reduce unit weight. It can effectively realize the lightweight of paper, reduce production cost and improve the performance of paper.
       In addition, silica can also be used in many industries such as fire-fighting agents, feed, cosmetics, matting agents, pigments, and paints.