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DuPont™ Nomex® T411 Polyaramid Film (Polymetaphenylene isophthalamide)

Grade: DuPont™ Nomex® T411
Formula: Polymetaphenylene isophthalamide
Form: Foil/Film/Sheet
Material: Polyaramide
Commodity: Polymers
DuPont™ Nomex® T411 Polyaramid film is a thin and flexible polymetaphenylene isophthalamide sheet from Goodfellow's range of films. It exhibits high thermal stability and chemical resistance. The aramid polymer film has low flammability and is often used in electrical insulation, flame barriers, and heat shields. With its combination of strength, heat resistance, and dielectric properties, Nomex film serves well as an electrical insulator and protective barrier from extreme temperatures.
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 Poor
Acids - dilute Good-Fair
Alcohols Good
Alkalis Good-Poor
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Ketones Good
Electrical Properties
Element Value
Dielectric constant @1kHz 2.3
Dielectric strength( kV mm⁻¹ ) 32
Volume resistivity( Ohmcm ) 6x10¹⁶
Physical Properties
Element Value
Radiation resistance Good
Limiting oxygen index( % ) 29
Water absorption - equilibrium( % ) 9
Water absorption - over 24 hours( % ) 0.08
Density( gcm⁻³ ) 1.38
Mechanical Properties
Element Value
Elongation at break( % ) 9
Izod impact strength( J m⁻¹ ) 533unnotched
Tensile strength( MPa ) 1800-3900
Thermal Properties
Element Value
Heat-deflection temperature - 1.8MPa( C ) 149
Upper working temperature( C ) 200-300
Specific heat( J K⁻¹ kg⁻¹ ) 1200
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.13@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 20

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