It is well known that Teflon (PTFE, PTFE) has excellent chemical resistance, high and low temperature resistance, aging resistance, low friction, dielectric, non-viscous, physiological inert

It has become an indispensable special material in chemical, mechanical, electrical, construction, medical and many other fields, and can create new processes and technologies instead of traditional materials.

The importance of technical equipment, which can not only improve the efficiency but also extend the service life, has been concerned by the world.

1. Chemical field

Teflon is neither dissolved nor swollen in any known liquid, so PTFE parts remain unchanged in size in any corrosive medium, no matter how long they are affected by it.

. Large thin-walled containers and laboratory vessels manufactured by Teflon are widely used in the actual operation of laboratories and factories using corrosive liquids, and they are also widely used in

Seals, pipes, pumps, valves, etc.

2. Mechanical field

No matter what kind of mechanical equipment, the sliding surfaces of each other need to be lubricated during operation to reduce friction factors, reduce the wear and heat of the parts, and ensure the normal operation of the mechanical equipment.

force, precision and power consumption. Teflon's low friction coefficient and self-lubrication make it widely used in the manufacture of bearings, piston rings, machine tool guides and sealing materials.

Figure 1: Teflon tube Source: Dan Kai

3. Construction field

Teflon has a low friction coefficient and high load bearing capacity, allowing long-term load of 30MPa, short-term load of 45MPa, displacement rate of 1 mm/s. Therefore its

It can be used to make load-bearing supports on bridges and buildings.

4. Electrical field

Teflon has excellent dielectric properties that actually do not depend on temperature and frequency, and at the same time has extremely high thermal stability, so it has become an irreplaceable

Insulating materials, especially in high frequency and super frequency technology. Teflon wires and cables are widely used in micro-motors, thermocouples, program-controlled devices, aviation, radar, electricity

vision, rocket and other industries. Among them, Teflon insulated coaxial radio frequency cable, low noise cable and ribbon wire have been widely used.

5. medical field

Teflon can be used to package particularly valuable drugs because of its water resistance, physiological inertness and non-stickiness. It has no effect on physiological processes, so it is used in many tissue repair materials and

Used in artificial organ materials. Moreover, the biggest advantage of Teflon is that it can be disinfected by any method, heated by high pressure or treated with various disinfectants. It is widely used in

In medical devices, such as suture needles, disinfection pads, injection needles, etc.

Other areas

Teflon film after two-way stretching, and then with other fabric composite, can be made into corrosion-resistant filter bag, waterproof, breathable, windproof and warm good high-grade clothing.

In the military industry, Teflon can be used to manufacture military engine internal parts, bushings, electrical connectors, etc.

In the automobile industry, the use of its heat resistance and creep resistance and other characteristics, can be used to manufacture automotive power steering equipment seals. Teflon with glass fiber, stone grinding, can be made

It has the advantages of low friction, high load and reliable use.

This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!