Why PTFE fluoride is becoming more and more popular in the field of electric heating

Among various plastics, fluororesins possess exceptional properties. For example, they offer exceptional heat resistance, low-temperature resistance, chemical resistance, electrical insulation, and high-frequency performance. They also possess exceptional non-adhesive and low-friction properties. These excellent properties have led to their widespread use not only in the chemical, electrical, and mechanical industries, but also in a wide range of applications, from aerospace to household goods.

PTFE (polytetrafluoroethylene), known as the "King of Plastics," is a representative fluorocarbon polymer. PTFE has a chemical structure in which all hydrogen atoms in polyethylene are replaced by fluorine atoms, resulting in a long-chain polymer with a molecular weight of 2 to 10 million. Due to the strong chemical bonding of fluorine atoms in fluorocarbon polymers, they exhibit superior heat and chemical resistance compared to other similar plastics. The more fluorine atoms in a molecule, the more pronounced these properties become. Therefore, PTFE is the most superior fluorinated product.

Heat Resistance

PTFE can be used continuously at temperatures up to 260°C, and can tolerate even higher temperatures for short periods of time. It also exhibits excellent low-temperature resistance. Therefore, electrical and electronic components, insulated wires, and other materials made from PTFE dispersions are widely used.

Chemical Properties

PTFE exhibits excellent resistance to commonly used chemicals. While it may decompose under extremely harsh operating conditions, such as molten metal, high temperatures, and high pressures with fluorine gas or chlorine trifluoride, it maintains excellent resistance to common acidic and alkaline oxidants, even at high temperatures, and does not dissolve in contact with organic compounds. Consequently, PTFE is widely used in chemical applications such as pipe liners, braided hoses, gaskets, sleeves, and shrink tubing.

Electrical Properties

PTFE's molecular structure is non-polar, making it ideal for high-frequency insulation. PTFE not only has a wide temperature range but also maintains a low and stable dielectric constant and dielectric loss across a wide frequency range. Furthermore, it is virtually unaffected by sunlight and humidity. PTFE is used in aircraft, electrical wiring, thin coaxial cables, industrial control cables, insulation sleeves, and wrapped wire.

Corrosion Resistance

Under normal circumstances, PTFE has a very low solid friction coefficient and is non-slip. Furthermore, it is very non-sticky and virtually non-adherent to any material. Therefore, PTFE can be used in pipes for transporting viscous liquids, as well as in the automotive and machinery industries.

Thus, PTFE has a wide range of applications. Due to its excellent electrical properties, PTFE is well-suited for insulating wires. It also has excellent heat and chemical resistance. Common examples include: electrical wires for aircraft, rockets, and missiles; wires for electronic circuit transformers and motors; wires for various electronic instruments; high-temperature wires; and near generators, electric furnaces, and metal pipes.