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.
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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 |
| 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 | >1013 | >106 |
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.
©
Copyright Boedeker Plastics, Inc.
2008