Polychlorotrifluoroethylene ( PCTFE )
Material Information
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| Common Brand Names: |
| Kel-F, Neoflon
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Chemical Resistance
| Acids - concentrated |
Good |
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| Acids - dilute |
Good |
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| Alcohols |
Good |
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| Alkalis |
Good |
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| Aromatic hydrocarbons |
Good |
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| Greases and Oils |
Good |
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| Halogens |
Good |
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| Ketones |
Good |
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Electrical Properties
| Dielectric constant @1MHz |
2.24-2.8 |
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| Dielectric strength ( kV mm-1 ) |
14 |
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| Dissipation factor @ 1kHz |
0.023-0.027 |
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| Dissipation factor @ 1MHz |
0.01 |
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| Surface resistivity ( Ohm/sq ) |
1015 |
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| Volume resistivity ( Ohmcm ) |
1016 |
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Mechanical Properties
| Compressive strength ( MPa ) |
9-12 |
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| Elongation at break ( % ) |
80-250 |
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| Hardness - Rockwell |
R75-112 |
D75-90 - Shore |
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| Izod impact strength ( J m-1 ) |
267 |
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| Tensile modulus ( GPa ) |
1.3-1.8 |
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| Tensile strength ( MPa ) |
31-41 |
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Physical Properties
| Density ( g cm-3 ) |
2.10 - 2.14 |
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| Flammability |
V-0 |
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| Refractive index |
1.435 |
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| Water absorption ( % ) |
<0.01 |
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Thermal Properties
| Coefficient of thermal expansion ( x10-6 K-1 ) |
70 |
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| Heat-deflection temperature - 0.45MPa ( C ) |
126 |
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| Lower working temperature ( C ) |
-240 |
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| Specific heat ( J K-1 kg-1 ) |
900 |
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| Thermal conductivity @0.13C ( W m-1 K-1 ) |
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| Upper working temperature ( C ) |
120-149 |
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Properties for Polychlorotrifluoroethylene Film
Property
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Permeability to Carbon Dioxide @25C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
0.16 |
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Permeability to Hydrogen @25C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
0.7 |
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Permeability to Nitrogen @25C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
0.004 |
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Permeability to Oxygen @25C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
0.03 |
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Permeability to Water @25C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
0.22 |
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Permeability to Water @38C
| x10-13 cm3. cm cm-2 s-1 Pa-1 |
1 |
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Buy Polychlorotrifluoroethylene on-line
| Standard products are available in these forms |
|
| Choose a form to search our on-line catalog
|