The high temperature resistance and low temperature resistance of silicone vary depending on the type and formula of silicone. The following is a detailed analysis of the high temperature resistance and low temperature resistance of silicone:
1. High temperature resistance
Ordinary silicone: The high temperature resistance range of ordinary silicone is usually between 200℃ and 300℃. Within this temperature range, silicone can maintain the stability of its physical and chemical properties and will not change or be damaged significantly due to high temperature.
Special silicone: There are some special silicones that can increase the high temperature resistance to about 350℃ in a short time (such as within two hours). These special silicones are usually used in occasions that need to withstand extremely high temperature environments.
Solid silicone and liquid silicone: The high temperature resistance of solid silicone is usually better than that of liquid silicone. More heat-resistant fillers can be added to solid silicone during processing to improve its high temperature resistance. Liquid silicone needs to remain in liquid form, so the amount of heat-resistant fillers allowed to be added is relatively small, and the high temperature resistance is relatively weak, but it can still meet the use requirements in certain high temperature environments.
2. Low temperature resistance
Low temperature range: The lowest temperature that low temperature resistant silicone materials can withstand is usually -70℃. Within this temperature range, silicone can maintain its elasticity and strength and is not easy to break or deform.
Applications: Low-temperature resistant silicone materials are mainly used to manufacture products that need to work in severe cold conditions, such as suction cups, electronic device trays, low-temperature resistant sealing strips, and extremely cold working sheaths.
In summary, the high-temperature resistance of silicone is usually between 200°C and 350°C (special silicone can withstand higher temperatures for a short time), while the low-temperature resistance can reach -70°C. These properties have made silicone widely used in many fields and become an important material. When choosing silicone, the appropriate type and formula of silicone should be selected according to the specific application and needs.