FEP characteristics:
FEP has a crystal melting point of 304°C and a density of 2.15g/CC (grams per cubic centimeter). It is a soft plastic with lower tensile strength, wear resistance and creep resistance than many engineering plastics. It is chemically inert and has a low dielectric constant over a wide temperature and frequency range. The material does not ignite and can prevent the spread of flames. It has excellent weather resistance, low friction coefficient, and can be used from low temperature to 392F. The material can be made into granular products for extrusion and molding, used as powder for fluidized bed and electrostatic coating, and can also be made into water dispersion. Semi-finished products include films and plates.
The heat resistance of FEP is 60°C lower than that of PFA, and its resistance to stress cracking is slightly worse, but it has excellent anti-adhesion and radiation resistance.
FEP feature comparison:
FEP not only has properties similar to PTFE, but also has good processing properties of thermoplastics. Therefore, it makes up for the deficiencies of the difficulty in processing PTFE, making it a material to replace PTFE, and is widely used in the production of wires and cables.
FEP raw material processing:
According to processing needs, it can be divided into three types: pellets, dispersions and paints. According to the different melt index, the pellets can be used for molding, extrusion and injection molding; the dispersion is used for dipping and sintering; the paint is used for spraying.
The applications of FEP:
Its application is to make the inner layer of pipes and chemical equipment, the surface of the drum, and various wires and cables, such as aircraft hook wires, booster cables, alarm cables, flat cables and oil well logging cables. FEP film has been used as a thin coating for solar collectors. It is mainly used in communication cables, wires, semiconductors, chemical corrosion protection, medical materials, automobiles, industrial coatings and other fields.
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