Silica gel, also known as silicone rubber, is a special synthetic rubber with high activity and high elasticity, which is widely used in many fields because of its unique chemical structure and excellent physical properties. This article will give a professional introduction to silicone raw materials, covering their types, properties and applications.
1.Variety
Silica gel can be divided into many types according to different classification methods. According to vulcanization temperature, can be divided into high temperature silica gel and room temperature silica gel; According to the appearance, it can be divided into block silicone, molded silicone, liquid silicone, etc. According to the use, it can be divided into ordinary silica gel, fumed silica black, conductive silica gel and so on.
2. Performance
Silica gel has excellent high and low temperature resistance and can be used for a long time in the range of -60℃ to 250℃; Has excellent oxidation resistance, corrosion resistance, can resist the erosion of a variety of chemical substances; Has excellent electrical insulation properties, can be used to manufacture wire and cable insulation layer; In addition, silicone also has the characteristics of low compression permanent deformation rate, non-toxic and tasteless.
3:.Application
Due to the various superior properties of silica gel, its application field is very wide. In the food industry, silicone can be made into a variety of food packaging materials, cooking utensils and tableware; In the medical field, silicone can be made into a variety of medical supplies, such as catheters, breathing masks, braces, etc. In the electronic and electrical industry, silica gel is widely used in the manufacture of wire and cable insulation, sealing and coating materials for electronic components and components; In addition, silicone is also used in aerospace, automotive manufacturing, building sealing and other fields.
4. Production process
The production process of silica gel mainly includes four links: raw material preparation, mixing, molding and vulcanization. The raw material preparation stage needs to choose the appropriate silicone rubber, filler, vulcanizing agent according to the product requirements; Mixing is to mix raw rubber and various additives evenly to make processable rubber. Molding is to make the silicone products of the desired shape by calendering or extruding the rubber compound. Finally, the silicone products obtained excellent physical properties by vulcanization.
5. Market prospects
With the continuous progress of science and technology and the improvement of people's living standards, the application field of silicone will be further expanded. In the future, with the enhancement of environmental awareness and the promotion of green production technology, the silicone industry will pay more attention to environmental protection and sustainable development. At the same time, with the development and application of new silicone materials, the performance of silicone will be further improved, providing more possibilities for the development of various industries.
6 .Summarize
Silica gel, as a special synthetic rubber, has a variety of superior properties and is widely used in many fields. Understanding the type, performance, application and production process of silica gel is helpful to better play its advantages and meet the actual needs of various industries. With the growth of market demand and the continuous progress of technology, the development prospects of the silicone industry will be broader.
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