1. What kind of material is PTFE?
Polytetrafluoroethylene, chemically known as polyperfluoroethylene propylene, is a polymer material with high stability and unique properties. It is obtained from tetrafluoroethylene monomer through free radical polymerization, and its trade name is "Teflon" (Teflon), which was first successfully synthesized and commercialized by DuPont in the United States in 1938.
The unique properties of PTFE are first and foremost reflected in its excellent chemical stability. Because the carbon atom in its molecular structure is completely surrounded by fluorine atoms, forming a stable covalent bond, it has extremely strong corrosion resistance to almost all chemical substances, whether it is strong acid, strong alkali or various organic solvents can not erode its surface, so it is known as the "king of plastics".
2. How many degrees of PTFE is temperature resistant?
Polytetrafluoroethylene (PTFE) has a wide long-term service temperature range, can operate stably between -80°C and +260°C, and can maintain a stable state in environments up to 280°C to 320°C even for short periods of time without significant deformation or performance degradation.
However, it is important to note that although PTFE can withstand extreme heat, when the temperature exceeds 350°C, the material will begin to decompose and may release toxic fumes. Therefore, in practical applications, its operating temperature must be strictly controlled to ensure that it is within a safe range.
In addition, PTFE also performs well at low temperatures, does not become embrittlement due to low temperatures, and retains good flexibility and elasticity at temperatures close to liquid nitrogen, making it ideal for cryogenic engineering and cryogenic laboratory equipment.
In general, PTFE has excellent temperature resistance due to its unique molecular structure, and can maintain stable physical and chemical properties in both cold and hot environments, which is one of the important reasons why it is widely used in various industries around the world.
3. Is PTFE Teflon?
Although PTFE and Teflon belong to different expressions of the same substance in the strict sense, "Teflon" focuses more on its image as a brand and commercial product, while PTFE reflects more of its chemical nature and scientific properties.
Polytetrafluoroethylene, with the chemical formula (CF2-CF2)N, is a polymer compound, which is well-known in industry and daily life because of its excellent performance and wide application, and it also has a more popular and commercial name - Teflon.
Teflon is the brand name of the PTFE coatings and products developed and produced by DuPont in the United States. The material has unique properties such as a very low coefficient of friction, excellent chemical stability (resistance to almost all acids and bases), very high thermal stability (stability over a wide temperature range of -80 to +260) and excellent electrical insulation. It is these properties that make PTFE, or Teflon, ideal for a wide range of industries.
This article was originally written by Miss Teflon Tube, welcome to pay attention and take you to grow knowledge together!