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Perfluoroalkoxy alkane - Wikipedia

Perfluoroalkoxy alkanes (PFA) are fluoropolymers. They are copolymers of tetrafluoroethylene (C2F4) and perfluoroethers (C2F3ORf, where Rf is a perfluorinated group such as trifluoromethyl (CF3)). The properties of these polymers are similar to those of polytetrafluoroethylene (PTFE). Compared to PTFE, PFA have better anti-stick properties

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Chemical resistance PFA - Polyfluor

PFA has the advantage to withstand a higher continuous working temperature compared to FEP. Due to melt processability, PFA can be extruded in longer continuous lengths than PTFE. Note: The chemical resistance of each polymer is mainly determined by the chemical structure of the material and the strength of the weakest link in this specific structure.

Difference Between PFA and PTFE | Difference Between

PFA is more affected by water absorption and weathering but is superior to PTFE when it comes to salt spray resistance. The most significant quality of PFA over PTFE is its electrical properties. It possesses the dielectric constant of PTFE as well as a very similar dissipation factor; yet PFA has a dielectric strength three to four times higher than that of PTFE.

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