Perfluoroalkoxy alkane

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 has better anti-stick properties and higher chemical resistance, at the expense of lesser scratch resistance.

"Perfluoroalkoxy" redirects here. This article is about specific fluoropolymers; for the broader class of fluoropolymers to which they belong, see Perfluoroether.
PFA
Density 2150 kg/m3
Flexural modulus(E) 586 MPa
Tensile strength(t) 24 MPa
Elongation at break 300%
Folding endurance No break
Notch test
Melting point 315 °C
Maximum operating temperature 260 °C
Water absorption (ASTM) <0.03 % after 24 hours
Dielectric constant (Dk) at 1MHz 2.1
Dissipation factor at 1MHz 0.0001
Arc resistance < 180 seconds
Resistivity at 50% R. H. > 1016 Ω m
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.