Use and performance of silica

The use of silica is very versatile and different products have different uses. It is used as a good reinforcing agent for synthetic rubber. Its reinforcing performance is second only to carbon black. Even if it is ultra-fine and proper surface treatment, it is even better than carbon black.

The addition of silica to the resin improves the moisture resistance and insulation properties of the resin. Filled in plastic products, it can increase the slip resistance and oil resistance. Filled in silicone resin, it can be made into plastics with resistance above 200 °C.

Silica can be used as a filler in plastics such as polyethylene, polypropylene, polybutylene, epoxy resin, etc., which can improve the elastic strength and wear resistance of plastics, as well as the thermal stability of hardness. The use of silica for cables can also improve the electrical insulation of cables. For example, methyl vinyl silicone rubber high-voltage wires require gas-phase silica or high-quality precipitated silica. It is often difficult to separate between two layers of plastic film. When the bag is difficult to open when bagging, silica is a very popular opening agent.

Due to the high heat of carbon black, automobile tires used in highways abroad tend to add silica. At present, the requirements of bicycle tires in the domestic and international markets are increasingly diversified. For example, new fancy varieties such as tire bead colorization and flashing rings are produced by replacing carbon black with silica.

Silica tire
(Silica can extend the life of car tires)
In the production of rubber shoes, people not only require fastness, but also a beautiful color, comfortable and light, for rubber shoes, rain boots, sports shoes, travel shoes, fitness shoes, ballet shoes, and the like. Silica not only has good reinforcing, abrasion resistance, anti-slip property and vamp adhesion, but also a good light-colored reinforcing material, so it plays a role in providing shoes quality and style in the development of rubber shoes. Important role.

Due to the superiority of the silica product, it can be widely used in many fields. Rubber products Silica is used in color rubber products to reinforce carbon black instead of white or translucent products.

Silica also has excellent adhesion, tear resistance and heat and aging resistance, so it can replace some carbon black in black rubber products to obtain high quality rubber products, such as off-road tires, engineering tires, etc. . Transparent color and opaque toothpaste with white carbon black as filler and abrasive. This type of toothpaste has good flexibility and dispersibility. The paste is smooth, soft and abrasive. It does not abrade the toothpaste tube. It can keep the drug toothpaste. The drug is stable.

Silica is used in adhesives made of natural rubber or synthetic rubber to provide thixotropic and reinforcing properties, and at the same time, it can improve adhesion due to its stretchability, and is inexpensive. Silica can also be used in some products to increase free-flowing properties such as grass fertilizers, fungicides, laundry bleaches, plastics for phenol and urea, rubber sulphur and anti-caking mixtures.