Polytetrafluoroethylene film is widely used in industrial and marine operations such as chemical, petroleum, textile, food, papermaking, medicine, electronics, and machinery. 

For example:

1. Application in electronic and electrical fields

The inherent low loss and small dielectric constant of polytetrafluoroethylene (PTFE) film material enable it to be made into enameled wires for use in micro motors, thermocouples, control devices, capacitors, radio insulation pads, insulated cables, motors, and transformers. By utilizing the characteristics of fluoroplastics that exhibit polar charge deviation at high temperatures and pressures, it can be used to manufacture parts such as microphones, speakers, and robots; With its low refractive index, Optical fiber can be manufactured.

2. Application of anti-corrosion performance

Polytetrafluoroethylene film (PTFE) material has become the main corrosion-resistant material in industries such as petroleum, chemical, and textile due to its excellent corrosion resistance. Its specific applications include: transportation pipes, exhaust pipes, steam pipes for transporting corrosive gases, high-pressure oil pipes for rolling mills, high, medium, and low pressure pipelines for hydraulic and cold pressing systems, distillation towers, heat exchangers, linings for kettles, towers, tanks, valves, and other chemical equipment.

3. Application of Low Friction Performance in Load

Because the friction coefficient of polytetrafluoroethylene film is the lowest among known solid materials. Its specific uses include bearings for chemical equipment, papermaking machinery, and agricultural machinery, as well as piston rings, machine guide rails, and guide rings. It is widely used as a support slider for bridges, tunnels, steel structure roof trusses, large chemical pipelines, storage tanks, and as a bridge support and bridge swivel in civil and construction engineering.

4. Application in medical and pharmaceutical fields

The expanded polytetrafluoroethylene film (PTFE) material is pure hearted, has very strong biological adaptability, will not cause rejection of the body, has no physiological side effects on the human body, can be sterilized by any method, and has a microporous structure, which can be used for a variety of rehabilitation solutions, including artificial blood vessels and patches for soft tissue regeneration, and surgical suture for blood vessels, heart, General surgery and plastic surgery.

5. Application of anti adhesion performance

The polytetrafluoroethylene film (PTFE) material has the smallest surface tension among solid materials, does not adhere to any substance, and also has excellent characteristics of high and low temperature resistance, which makes it widely used in anti sticking such as manufacturing Non-stick surface. The anti sticking process mainly includes two types: installing PTFE components or thin sheets on the substrate, and covering PTFE coating or coated with glass composite paint cloth on the substrate through thermal shrinkage.

With the continuous development of material application technology, the three major drawbacks of polytetrafluoroethylene film (PTFE) materials: cold fluidity, difficulty in welding, and difficulty in melting and processing are gradually being overcome, making its application prospects in various fields such as optics, electronics, medicine, and petrochemical oil transportation and anti-seepage more broad.