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Formula: PTFE
Form: Foil/Film/Sheet
Material: Polytetrafluoroethylene (PTFE)
CAS Number: 9002-84-0
Commodity: Polymers
PTFE Film is widely used in electrochemical applications due to its chemical resistance and thermal stability. It serves as an insulating barrier in lithium-ion batteries and fuel cells, preventing short circuits and ensuring consistent performance. In research laboratories, PTFE film is essential in microfluidic devices, offering non-stick, low-friction surfaces for precise fluid control. It is also used in gaskets, seals, and filtration membranes that require resistance to high temperatures and aggressive chemicals. With a high melting point and low surface energy, PTFE film is a key material in engineering applications such as energy storage, surface coatings, and fluid handling systems, providing reliable performance in harsh conditions.
Tolerances
Foil/Film/Sheet
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good |
| Halogens | Good |
| Ketones | Good |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.05-0.2 |
| Hardness - Rockwell | D50-55 - Shore |
| Poisson's ratio | 0.46 |
| Elongation at break( % ) | 400 |
| Tensile modulus( GPa ) | 0.3-0.8 |
| Izod impact strength( J m⁻¹ ) | 160 |
| Tensile strength( MPa ) | Oct-40 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2-2.1 |
| Dissipation factor @ 1MHz | 0.0003-0.0007 |
| Dielectric strength( kV mm⁻¹ ) | 50-170 |
| Surface resistivity( Ohm/sq ) | 10¹⁷ |
| Volume resistivity( Ohmcm ) | 10¹⁸-10¹⁹ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Poor |
| Refractive index | 1.38 |
| Resistance to Ultra-violet | Excellent |
| Limiting oxygen index( % ) | 95 |
| Water absorption - over 24 hours( % ) | 0.01 |
| Density( gcm⁻³ ) | 2.2 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 120 |
| Heat-deflection temperature - 1.8MPa( C ) | 54 |
| Lower working temperature( C ) | -260 |
| Upper working temperature( C ) | 180-260 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1000 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.25@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 100-160 |
Other Customers Purchased
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Yttria-stabilized Zirconia Sheet (5% Yttria) Formula: ZrO₂/Y₂O₃
Thickness: 1mm
Length 1: 25mm
Length 2: 25mm
Stabilised With: 5% Yttria
CAS Number: 114168-16-0
UOM Code: 128-868-36
eachStarting at £530.88
Discounts applied for volume purchases -
Ytterbium Foil Formula: Yb
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-64-4
UOM Code: 000-446-82
eachStarting at £187.83
Discounts applied for volume purchases -
X-ray Quality Rhodium Foil Grade: X-ray Quality
Formula: Rh
Percentage Purity: 99.9%
Temper: As Rolled
Thickness: 0.025mm
Length 1: 10mm
Length 2: 10mm
CAS Number: 7440-16-6
UOM Code: 464-926-09
eachStarting at £528.28
Discounts applied for volume purchases -
Yttrium Foil Formula: Y
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.1mm
Length 1: 50mm
Length 2: 50mm
CAS Number: 7440-65-5
UOM Code: 117-129-99
eachStarting at £184.61
Discounts applied for volume purchases -
Zinc Foil Formula: Zn
Percentage Purity: 99.9%
Thickness: 0.0025mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-66-6
UOM Code: 013-016-12
eachStarting at £119.36
Discounts applied for volume purchases -
Zirconium Foil Formula: Zr
Percentage Purity: 99.2%
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-67-7
UOM Code: 004-371-61
eachStarting at £129.87
Discounts applied for volume purchases
