Poly(pyromellitimide-1,4-diphenylether)

Nombres alternativos y comerciales
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.

Los datos sobre este material han sido proporcionados por Matmatch.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyTemperatureValueComment

Absorción de agua

23.0 °C

0.24 %

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

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

Densidad

23.0 °C

1.43 g/cm³

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ASTM D792

Índice límite de óxigeno

23.0 °C

53 %

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ASTM D2863

Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.41 [-]

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Dureza Rockwell M

23.0 °C

92 - 102 [-]

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ASTM D785

Elongación

23.0 °C

7.5 %

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ASTM D1708

260.0 °C

6 %

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ASTM D1708

Hardness, Rockwell E

23.0 °C

45 - 60 [-]

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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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Módulo de compresión

23.0 °C

2413 MPa

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ASTM D695

Módulo de flexión

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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Resistencia a la compresión

23.0 °C

24.8 MPa

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

Resistencia a la flexión

23.0 °C

110.3 MPa

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260.0 °C

62.1 MPa

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Resistencia a la tracción

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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Resistencia al cizallamiento

23.0 °C

89.6 MPa

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ASTM D732

Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

23.0 °C

1130 J/(kg·K)

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Coeficiente de dilatación térmica

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

Conductividad térmica

40.0 °C

0.35 W/(m·K)

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Heat deflection temperature, 1.80 MPa

359.85 °C

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ASTM D648

Temperatura de transición del vidrio

359.85 - 409.85 °C

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Eléctrico

PropertyTemperatureValueComment

Constante dieléctrica, 1 MHz

23.0 °C

3.55 [-]

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ASTM D150

Constante dieléctrica, 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

Factor de disipación

23.0 °C

3.6E-3 [-]

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ASTM D150, 10000 Hz

Resistividad eléctrica

23.0 °C

1.00E+14 - 1.00E+15 Ω·m

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ASTM D257

Rigidez dieléctrica

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

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.