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Hytrel® 7246

Category:	TPC-ET , THERMOPLASTIC POLYESTER ELASTOMER
Manufacturer:	DuPont Performance Polymers
Trademark:	Hytrel®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	7nIAf4_Hytrel-7246.pdf
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72 Shore D High Performance Polyester Elastomer

General Information
Additive	UV Stabilizer
Uses	Film Profiles Sheet
Agency Ratings	UL Unspecified Rating
Forms	Pellets
Processing Method	Casting Extrusion Film Extrusion Injection Molding Profile Extrusion Sheet Extrusion Thermoforming
Multi-Point Data	Creep Modulus vs. Time (ISO 11403-1) Isochronous Stress vs. Strain (ISO 11403-1) Isothermal Stress vs. Strain (ISO 11403-1) Isothermal Stress vs. Strain (TPE) (ISO 11403-1) Secant Modulus vs. Strain (ISO 11403-1) Shear Modulus vs. Temperature (ISO 11403-1) Shear Stress vs. Shear Rate (ISO 11403-1) Tensile Modulus vs. Temperature, Dynamic (ISO 11403-1) Viscosity vs. Shear Rate (ISO 11403-2)
Part Marking Code (ISO 11469)	>TPC-ET<
Resin ID (ISO 1043)	TPC-ET

Physical	Nominal Value	Unit	Test Method
Density	1.26	g/cm³	ISO 1183
Melt Mass-Flow Rate (MFR) (240°C/2.16 kg)	13	g/10 min	ISO 1133
Melt Volume-Flow Rate (MVR) (240°C/2.16 kg)	12.0	cm³/10min	ISO 1133
Molding Shrinkage			ISO 294-4
Across Flow	1.6	%
Flow	1.6	%
Water Absorption
24 hr	0.30	%	ASTM D570
23°C, 24 hr, 2.00 mm	0.60	%	ISO 62
Equilibrium, 23°C, 2.00 mm, 50% RH	0.20	%	ISO 62

Hardness	Nominal Value	Unit	Test Method
Shore Hardness			ISO 868
Shore D	68
Shore D, 15 sec	64

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus	525	MPa	ISO 527-2
Tensile Stress			ISO 527-2
Yield	26.0	MPa
Break	50.0	MPa
5.0% Strain	14.0	MPa
10% Strain	23.0	MPa
50% Strain	24.0	MPa
Tensile Strain			ISO 527-2
Yield	26	%
Break	> 300	%
Nominal Tensile Strain at Break	530	%	ISO 527-2
Tensile Creep Modulus			ISO 899-1
1 hr	360	MPa
1000 hr	310	MPa
Flexural Modulus	550	MPa	ISO 178
Abrasion Resistance	100	mm³	ISO 4649

Fill Analysis	Nominal Value	Unit	Test Method
Specific Heat Capacity of Melt	2150	J/kg/°C
Thermal Conductivity of Melt	0.15	W/m/K

Additional Information	Nominal Value	Unit	Test Method
Effective Thermal Diffusivity	0.0544	cSt
Emission of Organic Compounds	334	µgC/g	VDA 277

Elastomers	Nominal Value	Unit	Test Method
Tear Strength			ISO 34-1
Across Flow	170	kN/m
Flow	180	kN/m

Impact	Nominal Value	Unit	Test Method
Charpy Notched Impact Strength			ISO 179/1eA
-40°C	7.0	kJ/m²
-30°C	8.0	kJ/m²
23°C	36	kJ/m²
Notched Izod Impact Strength			ISO 180/1A
-40°C	7.0	kJ/m²
23°C	38	kJ/m²
Tensile Impact Strength (23°C)	300	kJ/m²	ISO 8256/1

Thermal	Nominal Value	Unit	Test Method
Heat Deflection Temperature
0.45 MPa, Unannealed	100	°C	ISO 75-2/B
1.8 MPa, Unannealed	50.0	°C	ISO 75-2/A
Brittleness Temperature	-97.0	°C	ISO 974
Glass Transition Temperature ¹	25.0	°C	ISO 11357-2
Vicat Softening Temperature
--	205	°C	ISO 306/A50
--	140	°C	ISO 306/B50
Melting Temperature ²	218	°C	ISO 11357-3
CLTE			ISO 11359-2
Flow	2.0E-4	cm/cm/°C
Transverse	2.0E-4	cm/cm/°C

Electrical	Nominal Value	Unit	Test Method
Surface Resistivity	> 1.0E+15	ohms	IEC 60093
Volume Resistivity	2.0E+12	ohms·cm	IEC 60093
Electric Strength	20	kV/mm	IEC 60243-1
Relative Permittivity			IEC 60250
100 Hz	4.00
1 MHz	3.50
Dissipation Factor			IEC 60250
100 Hz	0.016
1 MHz	0.030
Comparative Tracking Index	600	V	IEC 60112

Flammability	Nominal Value	Unit	Test Method
Flammability Classification (1.50 mm)	HB		IEC 60695-11-10, -20
Oxygen Index	23	%	ISO 4589-2

Fill Analysis	Nominal Value	Unit	Test Method
Melt Density	1.11	g/cm³

Note Message
1 .	10°C/min
2 .	10°C/min

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