Properties and advantages of ptfe:
1. High temperature resistance -- operating temperature up to 250â.
2. Low temperature resistance -- good mechanical toughness;5% elongation can be maintained even when the temperature drops to -180â.
3. Corrosion resistance -- inert to most chemicals and solvents, strong acid and alkali resistance, water and various organic solvents.
4. Weather resistance -- exnt aging life in plastics.
5. High lubrication -- lowest friction coefficient among solid materials.
6. Non-adhesion -- the surface tension of solid materials is small and does not adhere to any material.
7. Non- siological inertia, no adverse reactions after long-term implantation of artificial blood vessels and organs