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Formula: ETFE
Form: Foil/Film/Sheet
Material: Ethylene tetrafluoroethylene (ETFE)
CAS Number: 25038-71-5
Commodity: Polymers
Ultra-high molecular weight polyethylene (UHMWPE) films are highly valued for their exceptional wear resistance, tensile strength, flexibility, and chemical stability, making them suitable for a range of industrial applications. Such films may be used in biomedical devices like hip replacements to reduce wear and enhance longevity. Their low friction and durability also make them ideal for tribological studies, particularly in silicon-based devices. Surface modifications and stretching techniques are applied to improve their strength for use in high-strength composites. Additionally, UHMWPE films are being explored in thermal management and flexible electronics, thanks to their high thermal conductivity and flexibility. These properties make UHMWPE films essential in various industries, particularly in material science, engineering, and technology.
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
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good
Ketones Good
Electrical Properties
Element Value
Dielectric constant @1MHz 2.6
Dissipation factor @ 1MHz 0.0005
Dielectric strength( kV mm⁻¹ ) 25
Surface resistivity( Ohm/sq ) >10¹⁴
Volume resistivity( Ohmcm ) 10¹⁶
Physical Properties
Element Value
Flammability V0
Radiation resistance Fair
Refractive index 1.403
Resistance to Ultra-violet Excellent
Limiting oxygen index( % ) 30-32
Water absorption( % ) 0-0.03
Density( gcm⁻³ ) 1.7
Mechanical Properties
Element Value
Hardness - Rockwell R50
Elongation at break( % ) 250-350
Tensile modulus( GPa ) 0.8
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) 28-48
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 105
Heat-deflection temperature - 1.8MPa( C ) 70
Lower working temperature( C ) -100
Upper working temperature( C ) 150-160
Specific heat( J K⁻¹ kg⁻¹ ) 1900-2000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.24@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 90-170

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