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Use and properties of silica

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Silica has a wide range of uses, and different products have different uses. As a good reinforcing agent for synthetic rubber, its reinforcing performance is second only to carbon black, and even better than carbon black after ultra-fine and proper surface treatment.

The addition of silica into the resin can improve the moisture resistance and insulation performance of the resin. Filled in plastic products, it can increase the skid resistance and oil resistance. Filled in silicone resin, it can be made into plastic resistant to more than 200 ℃.

White carbon black can be used as filling material in polyethylene, polypropylene, polybutene, epoxy resin and other plastics, which can improve the elastic strength and wear resistance of plastics, as well as the thermal stability of hardness. The use of silica in cables can also improve the electrical insulation of cables. For example, methyl vinyl silicone rubber high voltage wires need to use fumed silica or high-quality precipitated silica. It is often difficult to separate the two layers of plastic film, and the opening of the bag is difficult to open when bagging, so silica is a very useful opening agent.

In the production of rubber overshoes, people require not only the fastness of rubber overshoes, rain boots, sports shoes, tourist shoes, fitness shoes, ballet shoes, etc., but also the beautiful color, comfort and portability. White carbon black not only has good reinforcement, wear resistance, anti-skid and vamp adhesion, but also is a good light-color reinforcement material, so it plays an important role in providing the quality and style of rubber shoes in the development of rubber shoes.

Due to a series of advantages of silica products, it can be widely used in many fields. Rubber products white carbon black is used in color rubber products to replace carbon black for reinforcement to meet the needs of white or translucent products.

Silica also has super adhesion, tear resistance, heat resistance and aging resistance, 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, etc. Transparent color and opaque toothpastes with white carbon black as filler and abradant. These toothpastes have good flexibility and dispersion, smooth, soft and good abrasiveness, and do not abrade the toothpaste tube; It can keep the stability of the medicated toothpaste.

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 extensibility, it can also improve adhesion, with high quality and low price. White carbon black can also be used in some products to improve free mobility, such as grassland fertilizer, fungicide, laundry bleach, plastic products of phenol and urea, manufacturing rubber sulfur and anti-caking mixture.

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