Rynite® 940 BK505

Nombres alternativos y comerciales
PET-(GF+MD)40
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Description

Common features of Rynite® thermoplastic polyester include mechanical and physical properties such as excellent balance of strength and stiffness, dimensional stability, creep resistance, heat resistance,high surface gloss and good inherent electrical properties at elevated temperature. It can be processed over a broad temperature range and has excellent flow properties. Rynite® thermoplastic polyester resins aretypically used in demanding applications in the automotive, electrical and electronics, appliances where they successfully replace metals and thermosets, as well as other thermoplastic polymers. Rynite® 940 BK505 is a 40% mica/glass reinforced modified polyethylene terephthalate resin with low warpage, high stiffness and strength, and excellent electrical properties.

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.

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Propiedades

General

PropertyTemperatureValueComment

Densidad

23.0 °C

1.64 g/cm³

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ISO 1183

Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.33 [-]

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Elongación

23.0 °C

1.8 %

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ISO 527-1/-2

Módulo de flexión

23.0 °C

13 GPa

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ISO 178

Módulo elástico

23.0 °C

12.5 GPa

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ISO 527-1/-2

Resistencia a la tracción

23.0 °C

110 MPa

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ISO 527-1/-2

Resistencia al choque, ensayo Charpy entallado

-40.0 °C

6 kJ/m²

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ISO 179/1eA

23.0 °C

7 kJ/m²

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ISO 179/1eA

Resistencia al choque, ensayo Charpy no entallado

-40.0 °C

35 kJ/m²

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ISO 179/1eU

23.0 °C

35 kJ/m²

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ISO 179/1eU

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Aplicaciones térmicas

PropertyTemperatureValueComment

Coeficiente de dilatación térmica

23.0 °C

6E-6 1/K

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ISO 11359-1/-2 | 23 - 55°C

Coeficiente de dilatación térmica transversal

23.0 °C

8.4E-5 1/K

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ISO 11359-1/-2 | 55 - 160°C

Heat deflection temperature, 0.45 MPa

241 °C

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ISO 75-1/-2

Heat deflection temperature, 1.80 MPa

220 °C

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ISO 75-1/-2

Relative temperature index, electrical

75 °C

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UL 746B | 30mil

Relative temperature index, mechanical impact

75 °C

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UL 746B | 30mil

Relative temperature index, mechanical strength

75 °C

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UL 746B | 30mil

Temperatura de fusión

250 °C

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ISO 11357-1/-3 | 18°F/min

Inflamabilidad

Burning Behav. at thickness h: HB class, Thickness tested: 0.75 mm, UL recognition: yes -, Glow Wire Flammability Index, 120mil: 925 °C, Glow Wire Ignition Temperature, 120mil: 900 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: <80 mm/min

Eléctrico

PropertyTemperatureValueComment

Constante dieléctrica, 1 MHz

23.0 °C

3.9 [-]

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IEC 62631-2-1

Constante dieléctrica, 100 Hz

23.0 °C

4.2 [-]

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IEC 62631-2-1

Dissipation factor, 100Hz

23.0 °C

7E-3 [-]

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IEC 62631-2-1

Dissipation factor, 1MHz

23.0 °C

0.02 [-]

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IEC 62631-2-1

Rigidez dieléctrica

23.0 °C

33 kV/mm

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IEC 60243-1

Surface resistivity

23.0 °C

1.00E+14 Ω/sq

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IEC 62631-3-2

Volume resistivity

23.0 °C

1.00E+15 Ω·cm

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IEC 62631-3-1

Índice de seguimiento comparativo

23.0 °C

250 V

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IEC 60112

Rheological Properties

PropertyTemperatureValueComment

Contracción

23.0 °C

0.2 %

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ISO 294-4, 2577

Contracción transversal

23.0 °C

0.7 %

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ISO 294-4, 2577

Technological properties

Property
Fillers

40% Glass Fiber and Mineral Powder

Processing methods

Drying Recommended: yes, Drying Temperature: 120°C, Drying Time, Dehumidified Dryer: 4-6h, Processing Moisture Content: ≤0.02%, Melt Temperature Optimum: 285°C, Min. melt temperature: 280°C, Max. melt temperature: 300°C, Max. screw tangential speed: 0.2m/s, Mold Temperature Optimum: 110°C, Min. mold temperature: 100°C, Max. mold temperature: 120°C, Hold pressure range: ≥80MPa, Hold pressure time: 4s/mm, Back pressure: As low as possible, Ejection temperature: 170°C