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DuPont™ Nomex® T411 Polyaramid Coil (Polymetaphenylene isophthalamide)

Grade: DuPont™ Nomex® T411
Formula: Polymetaphenylene isophthalamide
Form: Coil
Material: Polyaramide
Commodity: Polymers
Production Method: Uncalendered Paper
DuPont™ Nomex® T411 Polyaramid Coil (Polymetaphenylene isophthalamide) is a heat-resistant and strong synthetic aromatic polyamide foil offered by Goodfellow within their wide range of specialty foils. With its high tensile strength and thermal stability, Nomex® T411 is well-suited to electrical insulation applications where resilience at high temperatures is required. It also finds use as a dielectric film in capacitors and as a flexible printed circuit substrate where its dielectric properties are valuable.
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 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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