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Formula: LDPE
Form: Ball/Sphere
Material: Low Density Polyethylene (LDPE)
CAS Number: 9002-88-4
Commodity: Polymers
Diameter: 31mm
Color: Natural
LDPE Balls are low-density polyethylene spherical particles in Goodfellow's range of polymer products available in 2 variations. LDPE is known for properties like chemical resistance, flexibility, and toughness. These LDPE balls can be used in applications like flow visualization experiments, calibration of particle quantitie analyzers, and modeling of granular flow systems. With their precise dimensions and uniformity, the LDPE balls are well-suited as tracer particles across industrial and scientific uses.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Ball/Sphere
Diameter Standard ±5%
Diameter Precision See Item

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair-Poor
Greases and Oils Good-Fair
Halogenated Hydrocarbons Fair-Poor
Halogens Fair-Poor
Ketones Good-Fair
Electrical Properties
Element Value
Dielectric constant @1MHz 2.2-2.35
Dissipation factor @ 1MHz 1-10x 10⁻⁴
Dielectric strength( kV mm⁻¹ ) 27
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹⁵-10¹⁸
Physical Properties
Element Value
Flammability HB
Radiation resistance Fair
Refractive index 1.51
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.015
Density( gcm⁻³ ) 0.92
Mechanical Properties
Element Value
Hardness - Rockwell D41-46 - Shore
Elongation at break( % ) 400
Tensile modulus( GPa ) 0.1-0.3
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) May-25
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 50
Heat-deflection temperature - 1.8MPa( C ) 35
Lower working temperature( C ) -60
Upper working temperature( C ) 50-90
Specific heat( J K⁻¹ kg⁻¹ ) 1900-2300
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.33@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 100-200

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