Hydel ® PEI-7 ESD
Static Dissipative Polyetherimide Datasheet
DESCRIPTION
Hydel ® PEI-7 is an Ultem ®
polyetherimide base material that has been filled with graphite "nanotube"
microfibers to provide static dissipative properties. Unlike conventional
carbon products, this technology allows for superior dimensional stability
after machining, consistent electrical properties, excellent surface
quality, and minimal sloughing. This material has superior workability,
consistent filler dispersement, and better impact strength than competitive
equivalent products.
Hydel ® PEI-7 is black
in color and is available in sheet, rod, tubular bar and
profile forms.
| PROPERTIES of HYDEL ® PEI-7 |
| ASTM or UL test |
Property |
Hydel ® PEI-7 |
| PHYSICAL |
| D792 |
Density (lb/in³)
(g/cm³) |
0.046
1.26 |
| D570 |
Water Absorption, 24 hrs (%) |
0.25 |
| MECHANICAL |
| D638 |
Tensile Strength @ Break (psi) |
9,400 |
| D638 |
Tensile Modulus (psi) |
400,000 |
| D638 |
Tensile Elongation @ Break (%) |
4 |
| D790 |
Flexural Strength (psi) |
16,250 |
| D790 |
Flexural Modulus (psi) |
424,000 |
| D790 |
Compressive Strength (psi) |
16,200 |
| D256 |
IZOD Impact Notched (ft-lb/in) |
1.4 |
| D785 |
Hardness, Rockwell |
123 R |
| THERMAL |
| D696 |
Coefficient of Linear Thermal Expansion
(x 10 -5 in./in./°F) |
2.9 |
| C177 |
Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10 -4 cal/cm-sec-°C) |
-
- |
| D648 |
Heat Deflection Temp (°F / °C)
at 264 psi |
390 / 199 |
| - |
Max Operating Temp (°F / °C) |
340 / 171 |
| UL94 |
Flammability Rating |
V-0 |
| ELECTRICAL |
| D149 |
Dielectric Strength (V/mil) short time, 1/8" thick |
- |
| D150 |
Dielectric Constant at 1 KHz |
- |
| D257 |
Surface Resistivity (ohms/sq) |
10 6 - 10
8 |
| D257 |
Volume Resistivity (ohm-cm) at 50% RH |
10 6 - 10
8 |
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.
HYDEL is a registered trademark of A.L. Hyde Company
ULTEM is a registered trademark of G. E. Plastics
