VALOX™ FR Resins 771

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Description

VALOX 771 is a 35% mineral/glass filled, flame retardant Polybutylene Terephthalate (PBT) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.75 flame rating and 5VA@2.0mm. This grade also has a CTI of 0 and is a good candidate for applications that may see electrical arcing.

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

Absorción de agua

23.0 °C

0.09 %

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ISO 62 | 23°C, 50% RH

Densidad

23.0 °C

1.7 g/cm³

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ASTM D 792

Mecánica

PropertyTemperatureValueComment

Elongación

23.0 °C

2 %

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ASTM D 638 | Type I, 5 mm/min

Elongation at yield

23.0 °C

2 %

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ASTM D 638 | Type I, 5 mm/min

Flexural strain

23.0 °C

2 %

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ISO 178 | 2 mm/min

Flexural yield strength

23.0 °C

120 MPa

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ISO 178 | 2 mm/min

Hardness, Ball Indentation

23.0 °C

120 MPa

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ISO 2039-1

Hardness, Rockwell R

23.0 °C

111 [-]

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ISO 2039-2

Impact strength, Izod notched, ASTM

-30.0 °C

51 J/m

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ASTM D 256

23.0 °C

52 J/m

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ASTM D 256

Impact strength, Izod unnotched, ASTM

-30.0 °C

390 J/m

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ASTM D 4812

23.0 °C

390 J/m

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ASTM D 4812

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Límite elástico

23.0 °C

85 MPa

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ASTM D 638 | Type I, 5 mm/min

Módulo de flexión

23.0 °C

8.4 GPa

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ISO 178 | 2 mm/min

Módulo elástico

23.0 °C

9.5 GPa

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ASTM D 638 | 5 mm/min

Resistencia a la flexión

23.0 °C

120 MPa

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ISO 178

Resistencia a la tracción

23.0 °C

85 MPa

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ASTM D 638 | Type I, 5 mm/min

Resistencia al choque, ensayo Charpy entallado

-30.0 °C

6 kJ/m²

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ISO 179/2C

23.0 °C

6 kJ/m²

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ISO 179/2C

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Resistencia al choque, ensayo Charpy no entallado

-30.0 °C

20 kJ/m²

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ISO 179/1eU

23.0 °C

45 kJ/m²

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ISO 179/1eU

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Resistencia al choque, ensayo Izod entallado

-30.0 °C

5 kJ/m²

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ISO 180/1A

23.0 °C

5 kJ/m²

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ISO 180/1A

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Resistencia al choque, ensayo Izod no entallado

-30.0 °C

25 kJ/m²

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ISO 180/1U

23.0 °C

25 kJ/m²

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ISO 180/1U

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Aplicaciones térmicas

PropertyTemperatureValueComment

Coeficiente de dilatación térmica

23.0 °C

3.01E-5 1/K

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ISO 11359-2 | 23°C to 150°C

Coeficiente de dilatación térmica transversal

23.0 °C

1.35E-4 1/K

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ISO 11359-2 | 23°C to 150°C

Heat deflection temperature, 1.80 MPa

203 °C

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ASTM D 648 | 1.82 MPa, 3.2mm, unannealed

Relative temperature index, electrical

120 °C

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UL 746B

Relative temperature index, mechanical impact

125 °C

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UL 746B

Relative temperature index, mechanical strength

140 °C

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UL 746B

Temperatura de reblandecimiento Vicat

190 °C

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ASTM D 1525 | Rate B/50

Inflamabilidad

UL Recognized, 94-5VA Flame Class Rating | 2mm | UL 94

Eléctrico

PropertyTemperatureValueComment

Constante dieléctrica

23.0 °C

3.3 [-]

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IEC 60250 | at 50/60 Hz

Factor de disipación

23.0 °C

0.01 [-]

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IEC 60250 | at 1 MHz

Rigidez dieléctrica

23.0 °C

20 kV/mm

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IEC 60243-1 | in oil, 3.2 mm

Índice de seguimiento comparativo

23.0 °C

600 V

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IEC 60112

Rheological Properties

PropertyTemperatureValueComment

Contracción

23.0 °C

0.3 - 0.6 %

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SABIC method

Contracción transversal

23.0 °C

0.4 - 1 %

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SABIC method

Melt viscosity

260.0 °C

140 Pa·s

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ISO 11443 | 1500 sec⁻¹

Velocidad de flujo de la masa derretida

20 g/10min

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ASTM D 1238 | 266°C/5.0 kg

Velocidad de flujo del volumen derretido

16 cm³/10min

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ISO 1133 | 265°C/5.0 kg

Technological properties

Property
Application areas

Circuit Protection,Electronic Components,Enclosure/Housing/Cover,Enclosures,Freezer,Meter Gas,Refrigerator,Wiring Devices

Fillers

35% Glass Fiber and Mineral Powder

Processing methods

Drying Temperature: 110-120°C, Drying Time: 2-4hrs, Maximum Moisture Content: 0.02%, Melt Temperature: 250-270°C, Nozzle Temperature: 240-260°C, Front - Zone 3 Temperature: 245-265°C, Middle - Zone 2 Temperature: 240-255°C, Rear - Zone 1 Temperature: 230-245°C, Hopper Temperature: 40-60°C, Mold Temperature: 40-100°C