1. Stable under normal temperature and pressure, avoid humidity, heat and high temperature
No real melting point, slowly decomposing above 450 ℃ and directly turning into gas. At 327 ℃, the mechanical strength suddenly disappears. Insoluble in any solvent. In addition to being able to react with molten alkali metal, it will not be corroded by any substance, and will not change even if it is boiled in hydrofluoric acid, aqua regia or fuming sulfuric acid, sodium hydroxide.
2. White, odorless, tasteless, non-toxic powder, commonly known as "plastic king". It has excellent chemical stability, corrosion resistance, sealing, high lubrication, non viscosity, electrical insulation and good anti-aging endurance. High temperature resistance, operating temperature up to 250 ℃. It is resistant to low temperature and has good mechanical toughness at low temperature. Even if the temperature drops to - 196 ℃, it can maintain 5% elongation. Corrosion resistant, inert to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents. Good weather resistance, with the best aging life in plastics. High lubrication is the one with the lowest friction coefficient among solid materials. It does not adhere to any substance. It is the one with the smallest surface tension among solid materials. It is non-toxic and has physiological inertia. It is implanted into the body as an artificial blood vessel and organ for a long time without adverse reactions.
