Hytrel® 7246

Nombres alternativos y comerciales
TPC-ET

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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® 7246 is a high modulus grade with nominal hardness of 72D. It contains non-discoloring stabilizer. It can be processed by many conventional thermoplastic processing techniques like injection molding and extrusion.The 72 Shore D hardness is based on a legacy method and still used for grade identification purposes. Typical applications: Tubing, wire and cable jackets, gears and sprockets, oil field parts.

Equivalent Materials

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

Property	Temperature	Value	Comment
Absorción de agua	23.0 °C	0.3 % Show Material materials with Absorción de agua of 0.3 %	Sim. to ISO 62 \| Immersion 24h
Densidad	23.0 °C	1.26 g/cm³ Show Material materials with Densidad of 1.26 g/cm³	ISO 1183

Mecánica

Property	Temperature	Value	Comment
Coeficiente de Poisson	23.0 °C	0.47 [-] Show Material materials with Coeficiente de Poisson of 0.47 [-]
Dureza Shore D	23.0 °C	68 [-] Show Material materials with Dureza Shore D of 68 [-]	max., ISO 7619-1
Elongación	23.0 °C	530 % Show Material materials with Elongación of 530 %	ISO 527-1/-2
Elongation at yield	23.0 °C	23 % Show Material materials with Elongation at yield of 23 %	ISO 527-1/-2
Límite elástico	23.0 °C	27 MPa Show Material materials with Límite elástico of 27 MPa	ISO 527-1/-2
Módulo de cizallamiento	23.0 °C	0.28 GPa Show Material materials with Módulo de cizallamiento of 0.28 GPa	ISO 6721
Módulo de flexión	23.0 °C	0.55 GPa Show Material materials with Módulo de flexión of 0.55 GPa	ISO 178
Módulo elástico	23.0 °C	0.55 GPa Show Material materials with Módulo elástico of 0.55 GPa	ISO 527-1/-2
Resistencia a desgarros	23.0 °C	182 kN/m Show Material materials with Resistencia a desgarros of 182 kN/m	ISO 34-1
Resistencia a desgarros transversal	23.0 °C	172 kN/m Show Material materials with Resistencia a desgarros transversal of 172 kN/m	ISO 34-1
Resistencia a la tracción	23.0 °C	50 MPa Show Material materials with Resistencia a la tracción of 50 MPa	ISO 527-1/-2
Resistencia al choque, ensayo Charpy entallado	-40.0 °C	7 kJ/m² Show Material materials with Resistencia al choque, ensayo Charpy entallado of 7 kJ/m²	ISO 179/1eA
	-6.0 °C	8 kJ/m² Show Material materials with Resistencia al choque, ensayo Charpy entallado of 8 kJ/m²	ISO 179/1eA
	23.0 °C	36 kJ/m² Show Material materials with Resistencia al choque, ensayo Charpy entallado of 36 kJ/m²	ISO 179/1eA

Resistencia al choque, ensayo Izod no entallado	-40.0 °C	7 kJ/m² Show Material materials with Resistencia al choque, ensayo Izod no entallado of 7 kJ/m²	ISO 180/1A
	23.0 °C	38 kJ/m² Show Material materials with Resistencia al choque, ensayo Izod no entallado of 38 kJ/m²	ISO 180/1A
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Aplicaciones térmicas

Property	Temperature	Value	Comment
Brittleness temperature		-97 °C Show Material materials with Brittleness temperature of -97 °C	ISO 974
Calor específico	23.0 °C	2150 J/(kg·K) Show Material materials with Calor específico of 2150 J/(kg·K)	of melt
Coeficiente de dilatación térmica	23.0 °C	1.2E-4 1/K Show Material materials with Coeficiente de dilatación térmica of 1.2E-4 1/K	ISO 11359-1/-2 \| -40 - 23°C
Coeficiente de dilatación térmica transversal	23.0 °C	1.3E-4 1/K Show Material materials with Coeficiente de dilatación térmica transversal of 1.3E-4 1/K	ISO 11359-1/-2 \| -40 - 23°C
Difusividad térmica	23.0 °C	0 mm²/s Show Material materials with Difusividad térmica of 0 mm²/s
Heat deflection temperature, 0.45 MPa		100 °C Show Material materials with Heat deflection temperature, 0.45 MPa of 100 °C	ISO 75-1/-2
Heat deflection temperature, 1.80 MPa		50 °C Show Material materials with Heat deflection temperature, 1.80 MPa of 50 °C	ISO 75-1/-2
Relative temperature index, electrical		85 °C Show Material materials with Relative temperature index, electrical of 85 °C	UL 746B \| 60mil
Relative temperature index, mechanical impact		85 °C Show Material materials with Relative temperature index, mechanical impact of 85 °C	UL 746B \| 60mil
Relative temperature index, mechanical strength		75 °C Show Material materials with Relative temperature index, mechanical strength of 75 °C	UL 746B \| 60mil
Temperatura de fusión		218 °C Show Material materials with Temperatura de fusión of 218 °C	ISO 11357-1/-3 \| 18°F/min
Temperatura de reblandecimiento Vicat		205 °C Show Material materials with Temperatura de reblandecimiento Vicat of 205 °C	ISO 306 \| 90°F, 2 lbf
Temperatura de transición del vidrio		25 °C Show Material materials with Temperatura de transición del vidrio of 25 °C	ISO 11357-1/-2 \| 18°F/min
Inflamabilidad	Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, UL recognition: yes -, Oxygen index: 23 %, FMVSS Class: DNI -

Eléctrico

Property	Temperature	Value	Comment
Constante dieléctrica, 1 MHz	23.0 °C	3.5 [-] Show Material materials with Constante dieléctrica, 1 MHz of 3.5 [-]	IEC 62631-2-1
Constante dieléctrica, 100 Hz	23.0 °C	4 [-] Show Material materials with Constante dieléctrica, 100 Hz of 4 [-]	IEC 62631-2-1
Dissipation factor, 100Hz	23.0 °C	0.02 [-] Show Material materials with Dissipation factor, 100Hz of 0.02 [-]	IEC 62631-2-1
Dissipation factor, 1MHz	23.0 °C	0.03 [-] Show Material materials with Dissipation factor, 1MHz of 0.03 [-]	IEC 62631-2-1
Rigidez dieléctrica	23.0 °C	20 kV/mm Show Material materials with Rigidez dieléctrica of 20 kV/mm	IEC 60243-1
Surface resistivity	23.0 °C	1.00E+15 Ω/sq Show Material materials with Surface resistivity of 1.00E+15 Ω/sq	min. \| IEC 62631-3-2
Volume resistivity	23.0 °C	2.00E+12 Ω·cm Show Material materials with Volume resistivity of 2.00E+12 Ω·cm	IEC 62631-3-1
Índice de seguimiento comparativo	23.0 °C	600 V Show Material materials with Índice de seguimiento comparativo of 600 V	IEC 60112

Rheological Properties

Property	Temperature	Value	Comment
Contracción	23.0 °C	1.6 % Show Material materials with Contracción of 1.6 %	ISO 294-4, 2577
Contracción transversal	23.0 °C	1.6 % Show Material materials with Contracción transversal of 1.6 %	ISO 294-4, 2577
Velocidad de flujo de la masa derretida		13 g/10min Show Material materials with Velocidad de flujo de la masa derretida of 13 g/10min	ISO 1133 \| 240°C/2.16kg
Velocidad de flujo del volumen derretido		12 cm³/10min Show Material materials with Velocidad de flujo del volumen derretido of 12 cm³/10min	ISO 1133

Technological properties

Property
Processing methods	Drying Recommended: yes, Drying Temperature: 110°C, Drying Time, Dehumidified Dryer: 2-3h, Processing Moisture Content: ≤0.08%, Melt Temperature Optimum: 245°C, Min. melt temperature: 240°C, Max. melt temperature: 260°C, Mold Temperature Optimum: 45°C, Min. mold temperature: 45°C, Max. mold temperature: 55°C, Hold pressure range: ≤70MPa

Hytrel® 7246

Description

Equivalent Materials

Ashby charts

Lectura sugerida

Propiedades