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Duratron ® Polyimide Specifications
GENERAL PROPERTIES
 Duratron ® is a high performance amorphous
(non-crystalline) engineering thermoplastic. Chemically, Duratron
®
is a fully imidized thermoset polyimide.
Duratron ® is well suited for structural and
electrical applications where maintaining purity or electrical insulation is
critical. Duratron ® PI is synthesized differently
than competitive polyimides resulting in improved chemical resistance, lower
coefficient of thermal expansion and significantly better physical
properties, including heat resistance to 575°F (300°C).
FEATURES
• Lowest wear rates and highest PV capability • Lowest wear to
mating surfaces • Higher hardness than other polyimides • Lower thermal
expansion than other polyimides • Better chemical resistance • High purity
levels
DURATRON GRADES
Duratron ® XP (Unfilled)
Duratron ® XP has replaced the previous grade
Duratron
® HP, which is no longer available. Duratron
® XP was developed to compete with other high-purity
polyimides, such as Vespel ® SP-1.
Duratron ® XP contains less than 1 ppm of metallic
impurities as measured using the ICP-MS test standard. This purity is
comparable to other commercially available polyimide shapes. As a result,
Duratron
® XP is ideal for using in high-energy gas plasma etch
and strip processes. It is resistant to most gas plasma formulations using
in semiconductor processing and meets or exceeds the performance of other
polimides.
Duratron ® XP has higher tensile and compressive
strengths, higher impact strength, and lower water absorption than the
now-obsolete Duratron
® HP. The high temperature capability and purity of
Duratron
® XP make it especially well-suited for applications in
the clean room, including wafer rings, wand tips and wafer handling tools.
Duratron ® 150 (15% Graphite Filled)
Duratron ® 150 polyimide contains 15% graphite
lubricant. It offers the best combination of physical properties and
toughness among lubricated polyimide grades. Duratron ®
150 is an excellent material for bearings, slides, and high temperature wear
applications.
| TYPICAL PROPERTIES of DURATRON ® |
| ASTM or UL test |
Property |
Duratron ® XP |
Duratron ® 150 |
| PHYSICAL |
| D792 |
Density (lb/in³)
(g/cm³) |
0.051
1.40 |
0.050
1.38 |
| D570 |
Water Absorption, 24 hrs (%) |
0.40 |
0.65 |
| MECHANICAL |
| D638 |
Tensile Strength (psi) |
16,000 |
9,600 |
| D638 |
Tensile Modulus (psi) |
583,000 |
650,000 |
| D638 |
Tensile Elongation at Break (%) |
4 |
1.5 |
| D790 |
Flexural Strength (psi) |
20,000 |
13,000 |
| D790 |
Flexural Modulus (psi) |
600,000 |
1,000,000 |
| D695 |
Compressive Strength (psi) |
24,000 |
17,000 |
| D695 |
Compressive Modulus (psi) |
450,000 |
390,000 |
| D785 |
Hardness, Rockwell |
M110 |
M110 |
| D256 |
IZOD Impact Notched (ft-lb/in) |
1.4 |
0.5 |
| THERMAL |
| D696 |
Coefficient of Linear Thermal Expansion
(x 10 -5 in./in./°F) |
2.7 |
1.9 |
| D648 |
Heat Deflection Temp (°F / °C)
at 264 psi |
680 / 360 |
599 / 315 |
| D3418 |
Glass Transition Temp (°F / °C) |
613 / 323 |
613 / 323 |
| - |
Max Operating Temp (°F / °C) |
580 / 304 |
580 / 304 |
| C177 |
Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10 -4 cal/cm-sec-°C) |
1.50
5.17 |
3.74
12.9
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| UL94 |
Flammability Rating |
V-O |
V-O |
| ELECTRICAL |
| D149 |
Dielectric Strength (V/mil) short time, 1/8" thick |
700 |
- |
| D150 |
Dielectric Constant at 1 MHz |
3.41 |
- |
| D150 |
Dissipation Factor
at 1 KHz
at 100 KHz |
.0010
.0038 |
-
- |
| D257 |
Volume Resistivity (ohm-cm) at 50% RH |
>10 13 |
>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.
DURATRON is a registered trademark of Quadrant DSM
Engineering Plastic Products.
VESPEL is a registered trademark of DuPont
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