| About |
|---|
| UNITEM Polyetherimide (PEI) is an amorphous thermoplastic that is manufactured from SABIC Innovative Plastics’ ULTEM resin. UNITEM PEI is extremely rigid, dimensionally stable, and able to withstand continuous operating temperatures of 340°F. Because it offers superior resistance to autoclave sanitizing and is FDA/USDA compliant, UNITEM PEI is routinely specified for reusable machined components used in the medical and pharmaceutical industries. This material also offers electronic and semiconductor designers unmatched dielectric properties that are maintained over a wide frequency range. Unfilled UNITEM PEI is dark amber in color and semi-transparent. For applications that require improved stiffness, glass fiber filled grades with filler levels of 10%-40% are available. Nytef Plastics’ UNITEM PEI stock shapes are UL V-0 rated and available in a full range of heavy gauge rod, plate and tubular bar sizes. PRODUCT ATTRIBUTES 340°F continuous use temperature Semi-transparent with light amber color Excellent strength and rigidity, even at elevated temperatures Low moisture absorption Superior electrical properties Rated UL V-0 Easily machined and fabricated FDA, USDA compliant Glass fiber filled grades for improved strength and stiffness INDUSTRIES Medical and pharmaceutical Aircraft and aerospace Fluid handling Electrical and electronics manufacturing Microwave communications APPLICATIONS Sight glasses Manifolds Electrical insulators Electrical component housings Aircraft instrumentation&& |
| Product Description | |
|---|---|
| Generic | Polyetherimide |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Good Dimensional Stability,Good Electrical Properties,Machinable,High pressure disinfection,Low moisture absorption,Amorphous,V-0 |
| Availabilitys | North America,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.51 | g/cm³ | ASTM D792 |
| Water absorption rate | ASTM D570 | ||
| 24hr | 0.16 | % | ASTM D570 |
| saturated | 0.90 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 85 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 210 | ℃ | ASTM D648 |
| Continuous use temperature | 171 | ℃ | UL 746 |
| Vicat Softening Temp | 228 | ℃ | ASTM D3418 |
| Linear coefficient of thermal expansion | |||
| MD | 2.0E-5 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | > 1.0E+16 | ohms·cm | ASTM D257 |
| Dielectric strength | 30 | kV/mm | ASTM D149 |
| Dielectric constant | ASTM D150 | ||
| 60 Hz | 3.70 | ASTM D150 | |
| 1 MHz | 3.70 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 1.5E-3 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 3.20 mm | V-0 | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | ASTM D785 | ||
| M-level | 114 | ASTM D785 | |
| R-level | 127 | ASTM D785 | |
| Tensile modulus | 5520 | MPa | ASTM D638 |
| tensile strength | |||
| yield | 117 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 13 | % | ASTM D638 |
| Bending modulus | 5860 | MPa | ASTM D790 |
| bending strength | 186 | MPa | ASTM D790 |
| compressive strength | 212 | MPa | ASTM D695 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A (Short-Time) |
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