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Why use PFA for precision injection molding instead of PTFE
Release time:
Sep 19,2023
PTFE has excellent dielectric properties. It is often used to make cables: including connecting wires, coaxial cables, etc., especially in the field of high-frequency radio. PFA is suitable for precision injection molding to produce corrosion-resistant parts, anti-wear parts, seals, insulation parts and medical equipment parts.
Teflon is one of the most important inventions of the 20th century. For example, PFA and PTFE: polytetrafluoroethylene (PTFE) and tetrafluoroethylene and perfluoroalkoxyvinyl ether copolymer resin (PFA) are two kinds of fluoroplastics that are widely used in the world. Their properties are very similar. Then why is PFA precision injection molding widely used instead of PTFE?
Performance comparison
1. The performance of PFA is similar to that of PTFE, the maximum continuous use temperature is 260 ℃, and the minimum use temperature is -196 ℃. The biggest difference is that PFA can be melt processed. PFA is often used for precision injection molding and screw extrusion technology processing.
2. In terms of salt spray corrosion resistance, the performance of PFA is better than that of PTFE.
3. The flexibility of PFA is better than PTFE, such as in the application of PFA precision injection molding pipe.
4.PFA has similar physical and chemical properties to PTFE, but its flexural life is 10 times that of PTFE
Application field comparison
PTFE has excellent dielectric properties. It is often used to make cables: including connecting wires, coaxial cables, etc., especially in the field of high-frequency radio.
PFA is suitable for precision injection molding to produce corrosion-resistant parts, anti-wear parts, seals, insulation parts and medical equipment parts.
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Department of International Trade
Domestic Business Department
Department of International Trade
Domestic Business Department