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Formula: PEI
Form: Disk
Material: Polyetherimide (PEI)
CAS Number: 61128-46-9
Commodity: Polymers
Color:
Clear Amber
PEI Disk provides excellent heat resistance, high mechanical strength, and outstanding dimensional stability in a rigid circular format, making it well-suited for high-performance engineering and research environments. Its dielectric properties, flame resistance, and resistance to hydrolytic degradation make it valuable in aerospace, automotive, and medical device industries. Specific uses include insulating components in aerospace electronics, lightweight yet strong automotive structural parts, and biocompatible elements in medical research equipment. Research applications include studies of high-temperature polymer stability, additive manufacturing of thermoplastic composites, and analysis of polymer-electrical interactions. By combining precise disk geometry with the robust characteristics of polyetherimide, it enables both industrial-scale innovation and laboratory-based advancements in polymer engineering.
Tolerances
Disc
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good(-Fair?) |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good-Poor |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 3.1 |
| Dissipation factor @ 1MHz | 0.0013@1 |
| Dielectric strength( kV mm⁻¹ ) | 30@1.6mm |
| Surface resistivity( Ohm/sq ) | 4.10¹³ |
| Volume resistivity( Ohmcm ) | 7.10¹⁵ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V-0 @ 0.4mm |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Good/Fair |
| Limiting oxygen index( % ) | 47 |
| Water absorption - equilibrium( % ) | 1.3 |
| Water absorption - over 24 hours( % ) | 0.25 |
| Density( gcm⁻³ ) | 1.27 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | R125 |
| Poisson's ratio | 0.44 |
| Elongation at break( % ) | 60 |
| Compressive modulus( GPa ) | 2.9 |
| Tensile modulus( GPa ) | 2.9 |
| Izod impact strength( J m⁻¹ ) | 50 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | 10 |
| Tensile strength( MPa ) | 85 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 200 |
| Heat-deflection temperature - 1.8MPa( C ) | 190 |
| Upper working temperature( C ) | 170-200 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 2000 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.22@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 56 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 140 |
Other Customers Purchased
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Tungsten Disk Single Crystal Formula: W
Percentage Purity: 99.99%
Thickness: 2mm
Diameter: 10mm
Orientation: -110
Orientation Accuracy: =< 1°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-33-7
UOM Code: 100-748-47
eachStarting at $1,380.00
Discounts applied for volume purchases -
Ultem® 1000-7107 PEI Rod Grade: Ultem® 1000-7107
Formula: PEI
Diameter: 12.3mm
Length: 1000mm
Colour: Black
CAS Number: 61128-46-9
UOM Code: 743-791-56
eachStarting at $269.00
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PEI Tube Formula: PEI
Outside Diameter: 2.3mm
Wall Thickness: 0.7mm
Inside Diameter: 0.9mm
Length: 2000mm
Colour: Clear Amber
CAS Number: 61128-46-9
UOM Code: 135-161-29
eachStarting at $196.00
Discounts applied for volume purchases -
PEI Rod Formula: PEI
Diameter: 25mm
Length: 500mm
Colour: Clear Amber
CAS Number: 61128-46-9
UOM Code: 029-516-81
eachStarting at $208.00
Discounts applied for volume purchases -
Ultem® 1000 PEI Granules Grade: Ultem® 1000
Formula: PEI
Nominal Granule Size: 3mm
Weight: 2000g
Colour: Natural
CAS Number: 61128-46-9
UOM Code: 021-015-43
eachStarting at $162.00
Discounts applied for volume purchases -
Nickel/Iron/Molybdenum Alloy Disk (Ni80/Fe15.5/Mo4.5) Formula: Ni80/Fe15.5/Mo 4.5
Temper: Annealed
Thickness: 0.5mm
Diameter: 10mm
UOM Code: 712-328-62
eachStarting at $155.00
Discounts applied for volume purchases
