Celanese Hytrel® HTR8341C BK320 TPC-ET

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Celanese Hytrel® HTR8341C BK320 TPC-ET
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE
Material Notes:	40 Shore D, Lubricated, High Viscosity Polyester Elastomer with Superior Fatigue Resistance Developed for Blow Molding Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Original Value	Comments

Density	1.14 g/cc	ISO 1183
Melt Density	0.990 g/cc @Temperature 240 °C
Water Absorption	0.50 % @Thickness 2.00 mm	Sim. to ISO 62
Moisture Absorption	0.200 % @Thickness 2.00 mm	Sim. to ISO 62
Linear Mold Shrinkage, Flow	0.016 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.015 cm/cm	ISO 294-4, 2577
Melt Flow	0.90 g/10 min @Load 2.16 kg, Temperature 230 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	37	15s; ISO 48-4
	<= 40	ISO 48-4
Tensile Stress at Strain	6.00 MPa @Strain 10 %	ISO 527-1/-2
	12.0 MPa @Strain 50 %	ISO 527-1/-2
	13.0 MPa @Strain 100 %	ISO 527-1/-2
	23.0 MPa @Strain 300 %	ISO 527-1/-2
Tensile Modulus	80.0 MPa	ISO 527-1/-2
Flexural Modulus	80.0 MPa	ISO 178
Poissons Ratio	0.49
Izod Impact, Notched (ISO)	NB @Temperature 23.0 °C	ISO 180/1A
Charpy Impact Unnotched	NB @Temperature -30.0 °C	ISO 179/1eU
	NB @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	NB @Temperature -40.0 °C	ISO 179/1eA
	NB @Temperature 23.0 °C	ISO 179/1eA
Tensile Impact Strength	300 kJ/m² @Temperature 23.0 °C	Notched; ISO 8256/1
Tear Strength	110 kN/m	parallel; ISO 34-1
	115 kN/m	normal; ISO 34-1

Electrical Properties	Original Value	Comments
Volume Resistivity	8.00e+12 ohm-cm	IEC 62631-3-1
Surface Resistance	4.00e+14 ohm	IEC 62631-3-2
Dielectric Strength	19.0 kV/mm	IEC 60243-1
Dissipation Factor	0.0095 @Frequency 1e+6 Hz	IEC 62631-2-1
	0.030 @Frequency 100 Hz	IEC 62631-2-1
Comparative Tracking Index	600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	170 µm/m-°C	ISO 11359-1/-2
	230 µm/m-°C @Temperature -40.0 - 23.0 °C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	200 µm/m-°C	ISO 11359-1/-2
	240 µm/m-°C @Temperature -40.0 - 23.0 °C	ISO 11359-1/-2
Specific Heat Capacity	2.10 J/g-°C @Temperature 240 °C	Melt
Thermal Conductivity	0.160 W/m-K @Temperature 240 °C	Melt
Melting Point	167 °C	Freezing; 10°C/min; ISO 11357-1/-2
	207 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	56.0 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	42.0 °C	ISO 75-1/-2
Brittleness Temperature	-100 °C	ISO 974
	-77.0 °C	ISO 812 / 2011
Glass Transition Temp, Tg	-40.0 °C	10°C/min; DSC method; ISO 11357-1/-2
Flame Spread	17.0 mm/min @Thickness 1.00 mm	ISO 3795 (FMVSS 302)

Processing Properties	Original Value	Comments
Melt Temperature	240 °C	Optimum, Injection
	230 - 250 °C	Range, Injection
Mold Temperature	45.0 °C	Optimum, Injection
	40.0 - 50.0 °C	Injection
Ejection Temperature	145 °C	Injection
Drying Temperature	100 °C	Injection
Dry Time	3.00 - 4.00 hour	Blow Molding, Dehumidified Dryer
	3.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.020 %	Blow Molding
	<= 0.080 %	Injection

Descriptive Properties
Drying Recommended	yes	Injection
Eff. thermal diffusivity (m²/s)	5.44E-08
FMVSS Class	B	ISO 3795 (FMVSS 302)
Part Marking Code	>TPC-ET<	ISO 11469
Polymer	TPC
Resin Identification	TPC-ET	ISO 1043

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PDSX5213 / 197853

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