Polytetrafluorothene, referred to as ptfe, can also be called “non-stick coating” or “easy-to-clean wok material”; it is a synthetic high-quality polymer that uses fluorine to replace all hydrogen atoms in polyethylene. Molecular materials.
Polytetrafluoroethylene bubble-point film is a new material made of polytetrafluoroethylene film that is stretched in both directions. It is acid-resistant, alkali-resistant, and resistant to various organic solvents. It is almost insoluble in all Solvent.
At the same time, polytetrafluoroethylene is a material that is resistant to high temperatures and has an extremely low coefficient of friction, so it can be used for lubrication and is also an ideal coating for the inner layer of easy-to-clean pans and water pipes.
In the molding process of polytetrafluoroethylene bubble-dot film, the double stretching or stretching processing method is mostly used abroad.
Polytetrafluoroethylene can be stretched at room temperature to 327°C, that is, the stretching below the melting point is carried out in a high elastic state.
Stretching at low temperatures will cause the film to break, making stretching impossible.
When it is higher than 327°C, the crystalline state between polytetrafluoroethylene molecules changes to amorphous, and the network structure cannot be obtained well, so the general stretching temperature is between 40°C and 327°C.
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