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.

Diese Materialdaten wurden von Matmatch zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
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Eigenschaften

Allgemein

PropertyTemperatureValueComment

Dichte

23.0 °C

1.18 g/cm³

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ISO 1183

Wasserabsorption

23.0 °C

0.6 %

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Sim. to ISO 62 | Immersion 24h

Mechanisch

PropertyTemperatureValueComment

Biegemodul

23.0 °C

0.43 GPa

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ISO 178

Dehnung

23.0 °C

600 %

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ISO 527-1/-2

Elastizitätsmodul

23.0 °C

0.37 GPa

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ISO 527-1/-2

Elongation at yield

23.0 °C

43 %

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ISO 527-1/-2

Härte, Shore D

23.0 °C

55 [-]

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max., ISO 7619-1

Reißfestigkeit

23.0 °C

130 kN/m

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ISO 34-1

Reißfestigkeit, transversal

23.0 °C

105 kN/m

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ISO 34-1

Schlagfestigkeit, Charpy gekerbt

-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

Streckgrenze

23.0 °C

15 MPa

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ISO 527-1/-2

Zugfestigkeit

23.0 °C

35 MPa

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ISO 527-1/-2

Schlagzähigkeit, Charpy ungekerbt

No Break @ 23,-6°C, ISO 179/1eA

Thermisch

PropertyTemperatureValueComment

Brittleness temperature

-100 °C

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ISO 974

Glasübergangstemperatur

-55 °C

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ISO 11357-1/-2 | 18°F/min

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

Koeffizient der thermischen Ausdehnung

23.0 °C

1.8E-4 1/K

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ISO 11359-1/-2

Schmelzpunkt

222 °C

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ISO 11357-1/-3 | 18°F/min

Temperaturleitfähigkeit

23.0 °C

0 mm²/s

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Vicat-Erweichungstemperatur

170 °C

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ISO 306 | 90°F, 2 lbf

thermischer Ausdehnungskoeffizient, transversal

23.0 °C

1.8E-4 1/K

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ISO 11359-1/-2

Entflammbarkeit

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

Elektrisch

PropertyTemperatureValueComment

Dielektrizitätskonstante, 1 MHz

23.0 °C

4.4 [-]

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IEC 62631-2-1

Dielektrizitätskonstante, 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

Durchschlagfestigkeit

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

Schmelzmassenflussrate

15 g/10min

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ISO 1133 | 240°C/2.16kg

Schmelzvolumenflussrate

14 cm³/10min

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ISO 1133

Schrumpfung

23.0 °C

1.4 %

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ISO 294-4, 2577

Schrumpfung, diagonal

23.0 °C

1.5 %

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ISO 294-4, 2577

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