PTFE is currently the most widely used fluoropolymer material, and it can be made into various grades of tubes, rods. Other available PTFE forms include: sheet, plate and film.
If customers have any other size requirements, we can customize them according to your needs. Please feel free to contact us to discuss your unique needs.
> Very low coefficient of friction
> Non-stick properties
> Very high resistance to chemicals and solvents
> Wide operating temperature
> Excellent dielectric insulation properties
> Almost unaffected by oxygen, O3 and ultraviolet rays
Figure 1. A "tube-in-shell" membrane flow reactor [1]
Figure 2. Schematic depiction of a liquid meniscus surrounding a circular rod. [3]
Properties | ||
---|---|---|
General | Continuous service temperature | 260 °C |
Chemical resistance | Excellent | |
Specific gravity | 2.14 -2.19 g/cc | |
Environmental | Water absorption | < 0.01 % |
Weather resistance | Excellent | |
Oxygene index | > 95% | |
Flammability | UL 94 V-0 | |
Thermal | Melting point | 327 °C |
Thermal conductivity | 1.7 BTU/(h.ft.°F) | |
Heat deflection temperature @ 18.5 Kp/ sq.cm | 50-60 °C | |
Heat deflection temperature @ 4.6 Kp/ sq.cm | 130-140 °C | |
Mechanical | Tensile strength | 3500 psi |
Elongation | 300 % | |
Compressive strength | 3500 psi | |
Impact strength | 3.5 Ft-Lb/in | |
Flexural modulus | 90000 psi | |
Tensile modulus | 80000 psi | |
Hardness | D-60 | |
Electrical | Dielectric constant | 2.1 D150 (103 Hz) |
Dielectric dissipation factor | 0.0002 D150 (103 Hz) | |
Dielectric strength (short term) 10 mils film Volume resistivity | > 1018 Ohm · cm (D257) |
Note: The values in the above table are only a reference for material selection, and the actual parameters are subject to specific products.
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