In the field of electronics and electrical appliances, compared with other sealing materials, silicone rubber has many significant advantages in terms of temperature resistance, electrical properties, chemical stability, etc. The following is a detailed introduction: 重试    错误原因

Excellent Temperature Resistance

• Wide applicable temperature range: Silicone rubber can maintain good performance within the temperature range of -50°C to 250°C. In contrast, the general operating temperature of ordinary rubber is around -20°C to 80°C. Beyond this range, problems such as hardening, embrittlement, or softening are likely to occur. However, silicone rubber can still maintain its elasticity and sealing performance in extreme high - and low - temperature environments, ensuring the stable operation of electronic and electrical appliances under different ambient temperatures.
• Good high - temperature stability: In high - temperature environments, silicone rubber is less prone to thermal degradation and aging. It does not deform or melt like some plastic sealing materials. This makes it particularly suitable for sealing electronic and electrical components that are prone to generating high temperatures, such as power adapters and electronic devices around the car engine.

Outstanding Electrical Properties

• High insulation: Silicone rubber has extremely high electrical insulation properties. Its volume resistivity can reach 10¹³ - 10¹⁶Ω·cm, and the dielectric strength is above 20 - 30kV/mm. It can effectively prevent current leakage and short - circuits, providing reliable insulation protection for electronic and electrical equipment and reducing the risk of electrical failures.
• Low dielectric constant and dielectric loss: The dielectric constant of silicone rubber is generally between 2.8 - 3.2, and the tangent of the dielectric loss angle is also very low. This means that it has good electrical performance stability under high - frequency electric fields, with low energy loss during signal transmission. It is conducive to improving the signal transmission quality and efficiency of electronic devices and is often used for sealing high - frequency electronic components, communication equipment, etc.

Good Chemical Stability

• Strong corrosion resistance: Silicone rubber has good resistance to most chemical substances and is not easily corroded by chemicals such as acids, alkalis, and salts. Some traditional sealing materials, such as natural rubber, are easily damaged by chemical erosion, leading to sealing failure. Therefore, silicone rubber can be used to seal electronic and electrical equipment in environments with a risk of chemical corrosion, such as electronic monitoring equipment in chemical production.
• Good aging resistance: Silicone rubber has excellent ozone resistance, ultraviolet resistance, and weather resistance. It is not prone to aging, cracking, etc. during long - term exposure to the natural environment or in complex industrial environments. It can maintain long - term stable sealing performance and extend the service life of electronic and electrical products.

Excellent Sealing Performance

• High elasticity and flexibility: Silicone rubber has good elasticity and flexibility. Under different pressure and deformation conditions, it can closely adhere to the surface of the object to be sealed, filling various irregular gaps and holes to achieve a good sealing effect. Compared with metal sealing materials, it can better adapt to the small - scale deformation and vibration of electronic and electrical components.
• Low compression set: Under long - term compression, silicone rubber can still maintain good resilience and has a low compression set rate. This enables it to continuously maintain the sealing pressure during long - term use, ensuring the reliability of the seal. It is especially suitable for electronic and electrical products that require long - term sealing and are not easy to replace the seals.

Other Advantages

• Good processability: Silicone rubber is easy to be formed and processed. It can be made into various shapes and sizes of seals through various molding processes such as compression molding, extrusion, and injection molding. It can meet the diverse sealing requirements of electronic and electrical products, and the scrap rate during the processing is relatively low, with high production efficiency.
• Environment - friendly and non - toxic: Silicone rubber is an environmentally friendly material, non - toxic and odorless. It meets relevant environmental protection standards and safety requirements and does not cause harm to the human body and the environment. This is particularly important for some electronic and electrical products that are in close contact with the human body, such as electronic medical equipment and kitchen appliances.

Food grade Liquid coated silicone rubber for baking mat