The performance and application of PTFE

The performance and application of PTFE

The performance of PTFE:

1. Non-adhesiveness: PTFE is inert, almost all substances are not bonded to teflon, and very thin films also show non-adhesive properties.

2. Cold and heat resistance: Teflon has excellent heat resistance and low temperature resistance. It can withstand temperature up to 300°C in a short period of time, with a melting point of 327°C and does not melt at 380°C. Generally, it can be used continuously between 240°C and 260°C. It has remarkable thermal stability, and it can work at freezing temperatures. Not brittle, cold-resistant to 190°C.

3. Lubricity: Teflon has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.04-0.15.

4. Non-hygroscopicity: The surface of Teflon is not stained with water and oil, and it is not easy to be stained with solution during production and operation. If there is a small amount of dirt, it can be removed by simply wiping. Short downtime saves man-hours and improves work efficiency.

5. Corrosion resistance: Teflon is almost not corroded by chemicals, and can withstand all strong acids (including aqua regia), strong alkalis, and strong acids except molten alkali metals, fluorinated media, and sodium hydroxide above 300 °C The role of oxidizing agents, reducing agents and various organic solvents can protect parts from any kind of chemical corrosion.

6. Weather resistance: non-aging, the best non-aging life in plastics.

7. Non-toxic: In the normal environment within 300 ℃, it is physiologically inert, non-toxic and can be used as medical and food equipment.

8. Insulation: very good dielectric constant, high insulation.


The role of Teflon:

The full name of Teflon in English is Polytetrafluoroetylene, referred to as Teflon, PTFE, F4, etc. Teflon (Polytetrafluoroethene) is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in Polyethylene. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, Teflon has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication, and it has also become an ideal coating for the inner layer of easy-cleaning woks and water pipes. It can be used for pipeline anticorrosion, high and low temperature resistance, and corrosion resistance. Lubrication and other engineering, electronics, electrical appliances, aviation and other harsh environments.

Teflon Polytetrafluoroethene, the English abbreviation is PTFE, (commonly known as "Plastic King"), the brand name PTFE, in China, due to the pronunciation, the trademark "PTFE" is also called Teflon, Teflon, iron Fulong, Teflon, Teflon, etc. are all transliterations of Teflon. The products of this material are generally referred to as "non-stick coating"; it is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication, and it has also become an ideal coating for non-stick pans and the inner layer of water pipes.