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Formula: PFA
Form: Disk
Material: Perfluoroalkoxy (Teflon-PFA)
Commodity: Polymers
Teflon PFA Copolymer disks are high-performance fluoropolymer products available in a range of over 75 variations. They provide an exceptional combination of properties including high purity, outstanding chemical resistance, thermal stability, low friction and non-stick characteristics. Teflon PFA Copolymer disks have widespread applications from semiconductor manufacturing to chemical processing equipment. The customizable dimensions and broad chemical compatibility make Goodfellow's Teflon PFA disks ideal for use as gaskets, seals, valve components and other parts requiring the unique performance of fluoropolymers.
Tolerances
Disk
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Excellent |
| Acids - dilute | Excellent |
| Alcohols | Excellent |
| Alkalis | Excellent |
| Aromatic hydrocarbons | Excellent |
| Greases and Oils | Excellent |
| Halogens | Excellent |
| Ketones | Excellent |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 2.05-2.06 |
| Dielectric constant @1MHz | 2.05-2.06 |
| Dissipation factor @ 1kHz | 0.0001-0.0002 |
| Dissipation factor @ 1MHz | 0.0008 |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Refractive index | 1.35 |
| Limiting oxygen index( % ) | 95% |
| Water absorption( % ) | 0.03 |
| Density( gcm⁻³ ) | 2.15 |
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | 300 |
| Tensile strength( MPa ) | 25 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 63-80 |
| Heat-deflection temperature - 1.8MPa( C ) | 48-50 |
| Upper working temperature( C ) | 260 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.19 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 76-78 |
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