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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.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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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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