Hytrel® 4556

Alternative und Handelsbezeichungen
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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® 4556 is a medium modulus grade with nominal hardness of 45D. It contains non-discoloring stabilizer. It can be processed by many conventional thermoplastic processing techniques like injection molding and extrusion.

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.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

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Eigenschaften

Allgemein

PropertyTemperatureValueComment

Dichte

23.0 °C

1.14 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

0.09 GPa

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ISO 178

Dehnung

23.0 °C

740 %

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ISO 527-1/-2

Elastizitätsmodul

23.0 °C

0.09 GPa

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ISO 527-1/-2

Hardness, Ball Indentation

23.0 °C

11 MPa

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ISO 2039-1

Härte, Shore D

23.0 °C

45 [-]

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max., ISO 7619-1

Poissonzahl

23.0 °C

0.49 [-]

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Reißfestigkeit

23.0 °C

122 kN/m

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ISO 34-1

Reißfestigkeit, transversal

23.0 °C

123 kN/m

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ISO 34-1

Zugfestigkeit

23.0 °C

34 MPa

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ISO 527-1/-2

Schlagfestigkeit, Charpy gekerbt

No Break @ 23,-6,-40°C, ISO 179/1eA

Schlagzähigkeit, Charpy ungekerbt

No Break @ 23,-6°C, ISO 179/1eA

Schlagzähigkeit, Izod ungekerbt

No Break @ 23,-40°C, ISO180/1A

Thermisch

PropertyTemperatureValueComment

Brittleness temperature

-100 °C

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ISO 974

Glasübergangstemperatur

-45 °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

35 °C

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ISO 75-1/-2

Koeffizient der thermischen Ausdehnung

23.0 °C

2.2E-4 1/K

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ISO 11359-1/-2 | -40 - 23°C

Relative temperature index, electrical

85 °C

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UL 746B | 120mil

Relative temperature index, mechanical impact

85 °C

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UL 746B | 120mil

Relative temperature index, mechanical strength

80 °C

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UL 746B | 120mil

Schmelzpunkt

193 °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

155 °C

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ISO 306 | 90°F, 2 lbf

thermischer Ausdehnungskoeffizient, transversal

23.0 °C

2.1E-4 1/K

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ISO 11359-1/-2 | -40 - 23°C

Entflammbarkeit

Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, UL recognition: yes -, Burning Behav. at thickness h: HB class, Thickness tested: 3 mm, UL recognition: yes -, Oxygen index: 20 %, FMVSS Class: B -, Burning rate, Thickness 1 mm: 21 mm/min

Elektrisch

PropertyTemperatureValueComment

Dielektrizitätskonstante, 1 MHz

23.0 °C

4.5 [-]

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IEC 62631-2-1

Dielektrizitätskonstante, 100 Hz

23.0 °C

4.8 [-]

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IEC 62631-2-1

Dissipation factor, 100Hz

23.0 °C

9.5E-3 [-]

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IEC 62631-2-1

Dissipation factor, 1MHz

23.0 °C

0.03 [-]

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IEC 62631-2-1

Durchschlagfestigkeit

23.0 °C

19 kV/mm

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IEC 60243-1

Kriechstromfestigkeit

23.0 °C

600 V

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IEC 60112

Surface resistivity

23.0 °C

4.00E+14 Ω/sq

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IEC 62631-3-2

Volume resistivity

23.0 °C

8.00E+12 Ω·cm

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IEC 62631-3-1

Rheological Properties

PropertyTemperatureValueComment

Schmelzmassenflussrate

8.5 g/10min

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ISO 1133 | 220°C/2.16kg

Schmelzvolumenflussrate

7.5 cm³/10min

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ISO 1133

Schrumpfung

23.0 °C

1.2 %

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ISO 294-4, 2577

Schrumpfung, diagonal

23.0 °C

1.1 %

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ISO 294-4, 2577

Technological properties

Property
Processing methods

Drying Recommended: yes, Drying Temperature: 100°C, Drying Time, Dehumidified Dryer: 2-3h, Processing Moisture Content: ≤0.08%, Melt Temperature Optimum: 225°C, Min. melt temperature: 220°C, Max. melt temperature: 250°C, Mold Temperature Optimum: 45°C, Min. mold temperature: 45°C, Max. mold temperature: 55°C