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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.
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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UHMWPE Powder Formula: UHMW PE
Mean Particle Size: 150µm
Weight: 200g
Molecular Weight: ~5000k g/mol
CAS Number: 9002-88-4
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LDPE Film Formula: LDPE
Thickness: 0.25mm
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HDPE Film Formula: HDPE
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UHMWPE Film Formula: UHMW PE
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Length 1: 150mm
Length 2: 150mm
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UOM Code: 000-054-87
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