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Formula: UHMWPE, HMPE, HPPE
Form: Foil/Film/Sheet
Material: Ultra-high-molecular-weight polyethylene (UHMWPE, HMPE)
CAS Number: 9002-88-4
Commodity: Polymers
Ultra-high molecular weight polyethylene (UHMWPE) films/foils are known for their high wear resistance, low friction, and excellent impact strength, which make them highly sought after in industries such as medical applications, automotive, and manufacturing. These properties enhance the durability of joint replacements and prosthetics, while their chemical corrosion resistance makes them ideal for protective coatings in challenging environments like chemical processing. The material's low friction and abrasion resistance also play a critical role in improving the efficiency of automotive and industrial components. These characteristics ensure UHMWPE's reliability across multiple industries, contributing to both high-performance medical devices and mechanical parts.
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-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair
Greases and Oils Good-Fair
Halogenated Hydrocarbons Fair-Poor
Halogens Fair-Poor
Ketones Good-Fair
Mechanical Properties
Element Value
Coefficient of friction 0.1-0.2
Hardness - Rockwell R50-70
Poisson's ratio 0.46
Elongation at break( % ) 500
Tensile modulus( GPa ) 0.2-1.2
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) 20-40
Electrical Properties
Element Value
Dielectric constant @1MHz 2.3
Dissipation factor @ 1MHz 1-10x 10⁻⁴
Dielectric strength( kV mm⁻¹ ) 28
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹⁸
Physical Properties
Element Value
Flammability HB
Radiation resistance Fair
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.01
Density( gcm⁻³ ) 0.94
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 69
Heat-deflection temperature - 1.8MPa( C ) 42
Upper working temperature( C ) 55-95
Specific heat( J K⁻¹ kg⁻¹ ) 1900
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.42-0.51@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 130-200

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