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Formula: PBT
Form: Foil/Film/Sheet
Material: Polybutylene terephthalate (PBT)
CAS Number: 24968-12-5
Commodity: Polymers
PBT films is a polybutylene terephthalate (PBT) polymer film available in 16 variations. A versatile engineering thermoplastic, it offers properties such as good tensile strength, impact resistance and chemical resistance. Goodfellow's PBT films can be used in electrical insulation, food packaging, medical devices and other applications requiring a tough, dimensionally stable plastic film. Our range of film thicknesses and sizes gives engineers the ability to select the optimal PBT film for their design needs.
Tolerances
Foil/Film/Sheet
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good-Poor |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Fair |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Good-Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 3.2 |
| Dissipation factor @ 1kHz | 0.002 |
| Dielectric strength( kV mm⁻¹ ) | 20 |
| Volume resistivity( Ohmcm ) | 10¹⁵ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Fair? |
| Limiting oxygen index( % ) | 25 |
| Water absorption - over 24 hours( % ) | 0.1 |
| Density( gcm⁻³ ) | 1.31 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M70 |
| Elongation at break( % ) | 250 |
| Tensile modulus( GPa ) | 2 |
| Izod impact strength( J m⁻¹ ) | 60 |
| Tensile strength( MPa ) | 50 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 150 |
| Heat-deflection temperature - 1.8MPa( C ) | 60 |
| Upper working temperature( C ) | 120 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1200-2300 |
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