Perfluoroalkoxyethylene - PFA

Sep 5 2001

Polymer Type

Thermoplastic

Advantages

Melt processable, has similar chemical resistance to PTFE combined with the highest temperature resistance of melt processable fluoro plastics. Self-extinguishing. Retains room temperature stiffness and strength at elevated temperatures better than FEP. Excellent toughness.

Disadvantages

Stiffness and strength similar to those of PTFE at room temperature. More expensive than PTFE.

Typical Properties

Property

Value

Density (g/cm3) 2.

16

Surface Hardness

SD60

Tensile Strength (MPa)

29

Flexural Modulus (GPa)

0.7

Notched Izod (kJ/m)

1.06+

Linear Expansion  (/°C x 10-5)

21

Elongation at Break (%)

300

Strain at Yield (%)

85

Max. Operating Temp. (°C)

170

Water Absorption (%)

0.03

Oxygen Index (%)

95

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

18

Dielectric Strength (MV/m)

45

Dissipation Factor 1kHz

0.0002

Dielectric Constant  1kHz

2.1

HDT @ 0.45 MPa (°C)

74

HDT @ 1.80 MPa (°C)

30

Material. Drying  hrs @ (°C)

NI

Melting Temp. Range (°C)

360 - 420

Mould Shrinkage (%)

4

Mould Temp. Range (°C)

50 - 250

Applications

Heater cables, chemically resistant linings for pumps and pipes etc. that require a higher temperature resistance.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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