Lennite ® CN Static-Control
UHMW Polyethylene SpecificationS
GENERAL DESCRIPTION
Polyethylenes provide good resistance to organic solvents,
degreasing agents and electrolytic attack. They have high impact strength,
are light in weight, resistant to staining, and have low moisture absorption
rates.
Ultra High Molecular Weight Polyethylene (UHMW PE) is light weight (1/8 the
weight of mild steel), high in tensile strength, and as simple to machine as
wood. UHMW PE is self-lubricating, shatter resistant, long-wearing, abrasion
and corrosion resistant. However, it is a tremendous static generator.
Lennite ® CN-P is manufactured by adding carbon
powder to the resin, increasing the conductivity of UHMW to control static
electricity formation or conduction.
Lennite ® CN-P is available in
BLACK color only.
( see also
Standard Polyethylene Specifications )
Static Dissipative / Anti-Static (SD) :
Resistivity generally between 10 7 and 10 12 ohms per
square.
Initial electrostatic charges are suppressed.
Conductive (CN) :
Resistivity generally between 10 3 and 10 6 ohms per
square.
No initial charge, provides path for charge to bleed off.
| TYPICAL PROPERTIES of LENNITE ®
CN STATIC-CONTROL UHMW-PE |
| ASTM or UL test |
Property |
Lennite ® CN-P |
| PHYSICAL |
| D792 |
Density (lb/in³)
(g/cm³) |
0.035
0.97 |
| D570 |
Water Absorption, 24 hrs (%) |
- |
| MECHANICAL |
| D638 |
Tensile Strength (psi) |
5,600 |
| D638 |
Tensile Modulus (psi) |
- |
| D638 |
Tensile Elongation at Yield (%) |
390 |
| D790 |
Flexural Strength (psi) |
- |
| D790 |
Flexural Modulus (psi) |
140,000 |
| D695 |
Compressive Strength (psi) |
2,000 |
| D695 |
Compressive Modulus (psi) |
- |
| D785 |
Hardness, Shore D |
65 |
| D256 |
IZOD Notched Impact (ft-lb/in) |
No Break |
| THERMAL |
| D696 |
Coefficient of Linear Thermal Expansion
(x 10 -5 in./in./°F) |
- |
| D648 |
Heat Deflection Temp (°F / °C)
at 66 psi
at 264 psi |
-
- |
| D3418 |
Melting Temperature (°F / °C) |
- |
| - |
Max Operating Temp (°F / °C) |
180 / 82 |
| C177 |
Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10 -4 cal/cm-sec-°C) |
-
- |
| UL94 |
Flammability Rating |
- |
| ELECTRICAL |
| D257 |
Surface Resistivity (ohms/sq) |
10 2 -10
6 |
| D257 |
Volume Resistivity (ohm-cm), Dry |
10 2 -10
6 |
NOTE: The information contained herein are typical values intended
for reference and comparison purposes only. They should NOT be used as a
basis for design specifications or quality control. Contact us for
manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
LENNITE is a registered trademark of Westlake Plastic
Company
