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Formula: PBT
Form: Coil
Material: Polybutylene terephthalate (PBT)
CAS Number: 24968-12-5
Commodity: Polymers
Thickness: 0.55mm
Coil Width: 335mm
The PBT Coil is a high-performance thermoplastic made from polybutylene terephthalate (PBT) that offers excellent electrical insulation properties and chemical resistance. With 9 variations available, PBT film coils are a versatile solution for electrical, electronic and industrial applications needing thin, durable insulation. Potential uses include electrical motor slot liners, capacitor dielectrics and insulation for industrial process equipment.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Coil
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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