Hytrel® DYM350BK

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Description

Common features of Hytrel® thermoplastic polyester elastomer include mechanical and physical properties such as exceptional toughness and resilience, high resistance to creep, impact and flex fatigue, flexibility at low temperatures and good retention of properties at elevated temperatures. In addition, it resists many industrial chemicals, oils and solvents. Special grades include heat stabilised, flame retardant, food contact compliant, blow molding and extrusion grades. Concentrates offered include black pigments, UV protection additives, heat stabilisers, and flame retardants.Hytrel® thermoplastic polyester elastomer is plasticiser free.The good melt stability of Hytrel® thermoplastic polyester elastomer normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations.For disposal, local regulations have to be observed.Hytrel® thermoplastic polyester elastomer typically is used in demanding applications in the automotive, fluid power, electrical/electronic, consumer goods, appliance and power tool, sporting goods, furniture, industrial and off-road transportation/equipment industry.Hytrel® DYM350BK is a medium modulus polyester alloy suited for injection molding of Air Bag Deployment Doors. It has a nominal durometer hardness of 55D and contains fine particle size carbon black.Typical applications:Air bag deployment door.

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

0.6 %

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Sim. to ISO 62 | Immersion 24h

Densidad

23.0 °C

1.18 g/cm³

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ISO 1183

Mecánica

PropertyTemperatureValueComment

Dureza Shore D

23.0 °C

55 [-]

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max., ISO 7619-1

Elongación

23.0 °C

600 %

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ISO 527-1/-2

Elongation at yield

23.0 °C

43 %

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ISO 527-1/-2

Límite elástico

23.0 °C

15 MPa

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ISO 527-1/-2

Módulo de flexión

23.0 °C

0.43 GPa

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ISO 178

Módulo elástico

23.0 °C

0.37 GPa

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ISO 527-1/-2

Resistencia a desgarros

23.0 °C

130 kN/m

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ISO 34-1

Resistencia a desgarros transversal

23.0 °C

105 kN/m

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ISO 34-1

Resistencia a la tracción

23.0 °C

35 MPa

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ISO 527-1/-2

Resistencia al choque, ensayo Charpy entallado

-40.0 °C

130 kJ/m²

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ISO 179/1eA

-6.0 °C

120 kJ/m²

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ISO 179/1eA

Resistencia al choque, ensayo Charpy no entallado

No Break @ 23,-6°C, ISO 179/1eA

Aplicaciones térmicas

PropertyTemperatureValueComment

Brittleness temperature

-100 °C

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ISO 974

Coeficiente de dilatación térmica

23.0 °C

1.8E-4 1/K

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ISO 11359-1/-2

Coeficiente de dilatación térmica transversal

23.0 °C

1.8E-4 1/K

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ISO 11359-1/-2

Difusividad térmica

23.0 °C

0 mm²/s

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Heat deflection temperature, 0.45 MPa

50 °C

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ISO 75-1/-2

Heat deflection temperature, 1.80 MPa

40 °C

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ISO 75-1/-2

Temperatura de fusión

222 °C

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ISO 11357-1/-3 | 18°F/min

Temperatura de reblandecimiento Vicat

170 °C

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ISO 306 | 90°F, 2 lbf

Temperatura de transición del vidrio

-55 °C

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ISO 11357-1/-2 | 18°F/min

Inflamabilidad

Oxygen index: 22 %, FMVSS Class: SE -, Burning rate, Thickness 1 mm: 23 mm/min

Eléctrico

PropertyTemperatureValueComment

Constante dieléctrica, 1 MHz

23.0 °C

4.4 [-]

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IEC 62631-2-1

Constante dieléctrica, 100 Hz

23.0 °C

4.6 [-]

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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

20 kV/mm

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IEC 60243-1

Surface resistivity

23.0 °C

5.00E+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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min. | IEC 62631-3-1

Rheological Properties

PropertyTemperatureValueComment

Contracción

23.0 °C

1.4 %

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ISO 294-4, 2577

Contracción transversal

23.0 °C

1.5 %

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ISO 294-4, 2577

Velocidad de flujo de la masa derretida

15 g/10min

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ISO 1133 | 240°C/2.16kg

Velocidad de flujo del volumen derretido

14 cm³/10min

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ISO 1133

Technological properties

Property
Processing methods

Drying Recommended: yes, Drying Temperature: 100°C, Drying Time, Dehumidified Dryer: 3-4h, Processing Moisture Content: ≤0.05%, Melt Temperature Optimum: 245°C, Min. melt temperature: 240°C, Max. melt temperature: 250°C, Mold Temperature Optimum: 45°C, Min. mold temperature: 40°C, Max. mold temperature: 55°C