VALOX™ FR Resins 357U

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Description

VALOX 357U is an unreinforced, UV stabilized, impact modified flame retardant Polybutylene Terephthalate/Polycarbonate (PBT) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.64mm and 5VA@3.0mm flame rating. This is a good candidate for applications in the electrical industry including bobbins, switches, and enclosures.

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

0.08 %

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ASTM D 570 | 24 Hours

Densidad

23.0 °C

1.34 g/cm³

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ASTM D 792

Mecánica

PropertyTemperatureValueComment

Elongación

23.0 °C

110 %

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ASTM D 638 | Type I, 50 mm/min

Elongation at yield

23.0 °C

5.28 %

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ASTM D 638 | 50 mm/min

Flexural yield strength

23.0 °C

82 MPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Hardness, Rockwell R

23.0 °C

117 [-]

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ASTM D 785

Impact strength, Izod notched, ASTM

23.0 °C

534 J/m

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ASTM D 256

Impact strength, Izod unnotched, ASTM

23.0 °C

3204 J/m

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ASTM D 4812

Límite elástico

23.0 °C

48 MPa

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ASTM D 638 | Type I, 50 mm/min

Módulo de flexión

23.0 °C

2.06 GPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Módulo elástico

23.0 °C

2.05 GPa

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ASTM D 638 | 50 mm/min

Resistencia a la flexión

23.0 °C

82 MPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Resistencia a la tracción

23.0 °C

48 MPa

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ASTM D 638 | Type I, 50 mm/min

Aplicaciones térmicas

PropertyTemperatureValueComment

Coeficiente de dilatación térmica

23.0 °C

1.24E-4 1/K

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ASTM E 831 | 60°C to 138°C

Heat deflection temperature, 1.80 MPa

98 °C

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ASTM D 648 | 1.82 MPa, 6.4 mm, unannealed

Relative temperature index, electrical

120 °C

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UL 746B

Relative temperature index, mechanical impact

120 °C

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UL 746B

Relative temperature index, mechanical strength

140 °C

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UL 746B

Inflamabilidad

UL Recognized, 94-5VA Flame Class Rating | 3mm | UL 94

Eléctrico

PropertyTemperatureValueComment

Constante dieléctrica

23.0 °C

3.2 [-]

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ASTM D 150 | at 1 MHz

Factor de disipación

23.0 °C

0.03 [-]

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ASTM D 150 | at 1 MHz

Rigidez dieléctrica

23.0 °C

18.5 kV/mm

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ASTM D 149 | in oil, 3.2 mm

Índice de seguimiento comparativo

23.0 °C

2 V

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UL 746A

Rheological Properties

PropertyTemperatureValueComment

Contracción

23.0 °C

1 - 1.4 %

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SABIC method | 2.3-4.6 mm

Contracción transversal

23.0 °C

1.2 - 1.6 %

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SABIC method | 2.3-4.6 mm

Technological properties

Property
Application areas

Air Conditioning,Air Filtration,Amusement Machine,Audio,Building Accessory,Commercial Storage/Cookware,Cooking Range,Data Transfer,Document Handling,Electronic Components,Enclosure/Housing/Cover,Enclosures,Energy Management,EV Infrastructure,Fluid Delivery,Freezer,Furnace/Heater,Heavy Vehicles,Industrial Material Handling,Lab Ware and Clinical Diagnostics,Lawn/Garden,LED Lighting,Medical Device,Medical Facility Infrastructure,Monitoring and Imaging,Non-LED Lighting,Personal Computing,Photovoltaic Components,Plumbing,Power Manangement,Refrigerator,Renal and Blood Handling,Small Appliance,Surgical Devices,Swimming Pool/Spa,Traffic Management,Wearables,Window,Wireless Communications,Wiring Devices,Wire & cable

Processing methods

Drying Temperature: 120°C, Drying Time: 3-4hrs, Drying Time (Cumulative): 12hrs, Maximum Moisture Content: 0.02%, Melt Temperature: 250-265°C, Nozzle Temperature: 245-260°C, Front - Zone 3 Temperature: 250-265°C, Middle - Zone 2 Temperature: 245-260°C, Rear - Zone 1 Temperature: 240-255°C, Mold Temperature: 50-75°C, Back Pressure: 0.3-0.7MPa, Screw Speed: 50-100rpm, Shot to Cylinder Size: 40-80%, Vent Depth: 0.025-0.038mm