DuPont™ Kapton® B PI Disk

Grade: DuPont™ Kapton® B

Formula: PI

Form: Disk

Material: Polyimide (PI)

CAS Number: 60842-76-4

Commodity: Polymers

Color: Black

The DuPont™ Kapton® B PI Disk is a range of polyimide disks available in 60 different sizes and thicknesses. Polyimide exhibits high heat and chemical resistance along with mechanical strength and electrical insulation properties, making these disks ideal for applications in aerospace, automotive and electrical industries. Kapton® B disks can be used as thermal and electrical insulators in extreme environments, spacers and washers in mechanical assemblies, and substrates in flexible electronics and sensors. Our broad selection DuPont™ Kapton® B PI disks enable engineers and researchers to find the optimal Disk for their specific application.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Disk

Thickness		±20%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Poor
Acids - dilute	Fair
Alcohols	Poor
Alkalis	Poor
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good
Halogens	Fair
Ketones	Good

Mechanical Properties

Element	Value
Coefficient of friction	0.42
Hardness - Rockwell	E52-99
Elongation at break( % )	Aug-70
Tensile modulus( GPa )	02-Mar
Izod impact strength( J m⁻¹ )	80
Tensile strength( MPa )	70-150

Electrical Properties

Element	Value
Dielectric constant @1MHz	3.4
Dissipation factor @ 1kHz	0.0018
Dielectric strength( kV mm⁻¹ )	22
Surface resistivity( Ohm/sq )	10¹⁶
Volume resistivity( Ohmcm )	10¹⁸

Physical Properties

Element	Value
Flammability	V0
Radiation resistance	Good
Refractive index	1.66
Resistance to Ultra-violet	Poor
Limiting oxygen index( % )	53
Water absorption - over 24 hours( % )	0.2-2.9
Density( gcm⁻³ )	1.42

Thermal Properties

Element	Value
Heat-deflection temperature - 1.8MPa( C )	360
Lower working temperature( C )	-270
Upper working temperature( C )	250-320
Specific heat( J K⁻¹ kg⁻¹ )	1090
Thermal conductivity( W m⁻¹ K⁻¹ )	0.1-0.35@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	30-60

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DuPont™ Kapton® B PI Disk

Tolerances

Material Properties for Polymers