LUBMER™ LY1040 UHMWPE Granules

LUBMER™ LY1040 UHMWPE Granules are specialized ultra-high-molecular-weight polyethylene materials recognized for their outstanding abrasion resistance, toughness, and low coefficient of friction, making them suitable for use in challenging mechanical and biomedical environments. Their high molecular weight provides enhanced structural integrity and durability, while their chemical inertness ensures stability under corrosive and oxidative conditions. Major applications include orthopedic implants, protective equipment, and industrial components exposed to repetitive stress. Specific technologies benefiting from LY1040 include long-lasting artificial joint replacements, UHMWPE-based ion-exchange membranes for electrochemical energy storage systems, and high-strength orthopedic sutures. In research and development, LY1040 has been vital for advancing UHMWPE homocomposites, characterizing the mechanical and chemical behavior of high-performance polymers, and enabling additive manufacturing processes that push the boundaries of polymer engineering. Its versatility and durability highlight its importance in industries ranging from aerospace and defense to biomedical engineering, where reliability, performance, and safety are paramount.

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Properties

Reference & Citations

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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