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Polytetrafluoroethylene (PTFE referred to as F4), characteristics:
1. High temperature resistance: use temperature -200 ~+200 ℃;
2. Low temperature resistance: - 196 C can be maintained at 5%;
3. Corrosion resistance: strong acid, alkali, aqua regia and various organic solvents;
4. Insulation resistance: dielectric properties are independent of temperature and frequency;
5. High lubrication: the friction coefficient of solid material is the lowest;
6. Non-adherence: non-adherence to any substance; strong self-wettability: friction coefficient in solid material is 0.04
7. Non-toxic: with physiological inertia, can be implanted into the human body; anti-aging can be used in the atmosphere for a long time
8. Anti-pollution: the blank value of metal elements is low, the lead content is less than 10-11 g/ml, and the uranium content is less than 10-12 g/ml.
9. Leakage prevention: falling from 1.2 meters above the ground, the bottle body does not break, the cap does not fall off, and there is no damage and leakage.
