Application of silica in silicone rubber
Because of its strong adhesion, wear resistance and heat aging resistance, silica can also replace part of carbon black in rubber products to obtain high-quality rubber products, such as off-road tires, tires, engineering tires, etc.
Rubber is a very flexible elastomer, but its overall performance is not very good. Therefore, in the production of rubber products, carbon black will be added to the rubber to enhance strength, wear resistance and anti-aging. And the addition of carbon black will make the color of the product become black, the grade is not high. With the development of market economy, the requirements of tire are becoming more and more diversified. In order to produce new rubber products with novel color and excellent performance, white carbon black is needed to replace carbon black. Adding a small amount of silica in ordinary rubber can make the product's strength, wear resistance and anti-aging performance reach or even exceed that of the rubber product, and the color can remain unchanged for a long time, such as shoes, boots, sports shoes, fitness shoes and so on. Some progress has also been made in the color aspect of tire development, such as the side with greatly improved bending resistance of tire rubber, and it is expected to realize the color diversification of domestic automobile and motorcycle tires in the near future.
What is silica (also known as silica gel or silica)? It is a kind of white powder amorphous silica and silicate products, mainly refers to precipitated silica, refining silica, silica gel ultrafine, also includes powder synthesis of aluminum silicate and calcium silicate. Silica is a porous material with the chemical formula of SiO2 · nH2O, in which nH2O exists in the form of surface hydroxyl groups. Silica is a white powder of hydrated amorphous silicate. Its main component is silica, and its chemical formula is msio2 · nH2O. For example, H2SiO3 is SiO2 · H2O, h4sio4 is SiO2 · 2H2O · h4sio2 · 2H2O It's a class of compounds. Then in the study of their physical and chemical properties, it is not specific compounds, this refers to such compounds.
And they are not soluble in acid hydrate, after absorbing water in the air, they will become fine powder. It is insoluble in water and any solvent except caustic soda and hydrofluoric acid. Their characteristics are tasteless, odorless, high temperature resistant, non flammable and good electrical insulation. Because of the different manufacturing methods, chemical composition and physical structure, the physical and chemical properties of the products are very different.
REACH 证书
Contact US:
JINSHA PRECIPITATED SILICA MANUFACTURING CO.LTD.
Email.: jk@jksilica.com
Add.: Gaosha Industrial Zone, Shaxian, Fujian, China
EXPORT OFFICE
Room 908, Taiwan Street No.290, Xiamen, China
Mobile/WhatsApp:+86-17850500833
Contact: Wendy Wu, Sally Jiang
Tel.:+86-592-5528715
Fax.:+86-592-5528716