Silicone is heat resistant.
Ordinary silica gel is resistant to temperatures between 200 and 300 degrees Celsius. Within a short period of time such as two hours the maximum temperature can reach about 350 degrees Celsius, commonly used special performance silicone. High-temperature silicone is generally divided into high-temperature resistant pants solid silicone and high-temperature resistant liquid silicone, liquid silicone to maintain a liquid state, and therefore the amount of heat-resistant filler allowed to fill the relative solid silicone will be less, and therefore generally solid silicone and loss of number of rubber is more heat-resistant and easier to do.
Silicone in the molecular structure of the silicon atom is relatively unique, connected to the methyl group, and the molecule is showing a spiral structure, while the bond angle length is relatively large, and thus has a high thermal stability. In addition, the silica gel flexibility is better, and thus has a lower embrittlement temperature, can meet the minus 80 degrees in the environment to use.
Silicone can quickly recover its properties after the evaporation of oily or polar solvents, avoiding softening or swelling, and thus has good chemical resistance.
Silicone application
Silicone is a very common material, with high temperature, acid and alkali resistance, waterproof, heat insulation, insulation and other characteristics, in various fields have a wide range of applications.
Kitchenware and bakeware: Silicone can be used to make molds and baking pans of various shapes and sizes, which can withstand high temperatures and can be put into the oven to bake cakes, bread and other foods.
Medical equipment: Silicone has excellent characteristics such as antibacterial, corrosion resistance, etc. It can be used to make medical equipment, such as catheters, surgical instruments and so on.
Electronic appliances: silicone can be used for sealing electronic equipment, insulating wires and cables.
Cosmetics: Silicone is often used in cosmetics as an additive for thickening, moisturizing and sunscreen functions.