In the production of UL and VDE wires and cables. Commonly used fluoroplastics are PTFE, Polyperfluoroethylene propylene, Polyvinylidene fluoride, Tetrafluoroethylene and ethylene copolymer, etc.
The most prominent features of fluoroplastics are weather resistance, excellent heat resistance, low friction coefficient, stable chemical properties, and good electrical insulation properties.
Polytetrafluoroethylene (Teflon or PTFE), commonly known as "Plastic King", is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability, corrosion resistance, airtightness, high lubrication and non-stickiness, electrical insulation and good anti-aging resistance. Used as engineering plastics, it can be made into polytetrafluoroethylene tubes, rods, belts, plates, films, etc. Generally used in corrosion-resistant pipelines, containers, pumps, valves, radar, high-frequency communication equipment, and radio equipment with high performance requirements.
Polyfluoroethylene propylene (FEP) is resistant to strong acids, strong bases and strong oxidants due to its excellent chemical stability.

Polyvinylidene fluoride. PVDF PVDF is a semi-crystalline polymer under normal conditions, with a crystallinity of about 50%. So far, five crystal forms of α, β, γ, δ and ε have been reported. They are formed under different conditions, and can be transformed into each other under certain conditions (heat, electric field, mechanical and radiant energy). Among the 5 crystal forms, β crystal form is the most important. PVDF, which is used for piezoelectric and pyroelectric applications, mainly contains β crystal form. Uses: used to suppress chemical machinery parts, sealing materials, electrical insulation and anti-corrosion coatings, etc.

Tetrafluoroethylene is mainly produced from chloroform, and can also be produced by catalytic dechlorination of tetrafluorodichloroethane in the presence of aluminum trifluoride. It is a colorless and odorless gas at room temperature, with a boiling point of -76.3°C; It can be liquefied under pressure, with a critical temperature of 33.3℃ and a critical pressure of 3.92MPa. Unlike many other fluorohydrocarbons, tetrafluoroethylene is toxic. Mainly used to produce polytetrafluoroethylene with a wide temperature range and high chemical stability; It can also be copolymerized with ethylene or hexafluoropropylene to produce fluorine-containing insulating materials, or with vinylidene fluoride to produce fluorine-containing fibers.

Ethylene copolymer chemical properties: general high molecular polymer.