Poly(pyromellitimide-1,4-diphenylether)

Alternative und Handelsbezeichungen
ODA-PMDA, PMDA-ODA, Kapton, Vespel, Apical
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Description

Polyetherimide (PEI), direct-formed parts are resistant to thermally harsh environment, creep, impact, and wear, and friction at high pressures and velocities.

Diese Materialdaten wurden von Matmatch zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

Eigenschaften

Allgemein

PropertyTemperatureValueComment

Coefficient of friction

0.29 [-]

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Steady state, unlubricated in air (PV=0875 MPa*m*s⁻¹), for static in air: 0.35

Dichte

23.0 °C

1.43 g/cm³

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ASTM D792

Sauerstoffindex

23.0 °C

53 %

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ASTM D2863

Wasserabsorption

23.0 °C

0.24 %

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ASTM D570, 24h, for Immersion 48h at 50°C: 0.72%

Mechanisch

PropertyTemperatureValueComment

Biegefestigkeit

23.0 °C

110.3 MPa

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260.0 °C

62.1 MPa

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Biegemodul

23.0 °C

3.1 GPa

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ASTM D790

260.0 °C

1.72 GPa

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ASTM D790

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Dehnung

23.0 °C

7.5 %

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ASTM D1708

260.0 °C

6 %

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ASTM D1708

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Druckfestigkeit

23.0 °C

24.8 MPa

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ASTM D695, 1% strain, for 10% strain: 133.1 MPa

Hardness, Rockwell E

23.0 °C

45 - 60 [-]

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ASTM D785

Härte, Rockwell M

23.0 °C

92 - 102 [-]

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ASTM D785

Impact strength, Izod notched, ASTM

23.0 °C

42.7 J/m

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Impact strength, Izod unnotched, ASTM

23.0 °C

747 J/m

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Kompressionsmodul

23.0 °C

2413 MPa

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ASTM D695

Poissonzahl

23.0 °C

0.41 [-]

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Scherfestigkeit

23.0 °C

89.6 MPa

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ASTM D732

Zugfestigkeit

23.0 °C

86.2 MPa

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ASTM D1708

260.0 °C

41.4 MPa

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ASTM D1708

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Thermisch

PropertyTemperatureValueComment

Glasübergangstemperatur

359.85 - 409.85 °C

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Heat deflection temperature, 1.80 MPa

359.85 °C

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ASTM D648

Koeffizient der thermischen Ausdehnung

23.0 °C

5.4E-5 1/K

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ASTM D696, @23-300°C, 45*10⁻⁶ K⁻¹@-62 to 23°C

Spezifische Wärmekapazität

23.0 °C

1130 J/(kg·K)

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Wärmeleitfähigkeit

40.0 °C

0.35 W/(m·K)

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Elektrisch

PropertyTemperatureValueComment

Dielektrizitätskonstante, 1 MHz

23.0 °C

3.55 [-]

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ASTM D150

Dielektrizitätskonstante, 100 Hz

23.0 °C

3.62 [-]

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ASTM D150

Dissipation factor, 100Hz

23.0 °C

1.8E-3 [-]

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ASTM D150

Dissipation factor, 1MHz

23.0 °C

3.4E-3 [-]

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ASTM D150

Durchschlagfestigkeit

23.0 °C

0.02 kV/mm

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ASTM D149, short time, 0.002m thick

Surface resistivity

23.0 °C

1.00E+15 - 1.00E+16 Ω/sq

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ASTM D257

Verlustfaktor

23.0 °C

3.6E-3 [-]

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ASTM D150, 10000 Hz

spezifischer Widerstand

23.0 °C

1.00E+14 - 1.00E+15 Ω·m

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ASTM D257

Technological properties

Property
Application areas

Vespel molded parts are used in automobiles, large on-and-off-road vehicles, farm equipment, business machines, electronic equipment, etc.: rotary seal rings, thrust washers and discs, bushings, flanges bearings, printer platen bars, plungers, printer wireguides, stripper fingers, spline couplings, wear strips, locknut inserts, valve seats, check valve balls, thermal and electrical insulators.