Celanese Hytrel® DYM350BK TPC-ET+PBT

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Celanese Hytrel® DYM350BK TPC-ET+PBT
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE
Material Notes:	Medium Modulus Polyester Elastomer with Excellent Impact Resistance Developed for Air Bag Door Applications Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Original Value	Comments

Density	1.18 g/cc	ISO 1183
Melt Density	1.00 g/cc @Temperature 245 °C
Water Absorption	0.60 % @Time 86400 sec	Immersion; Sim. to ISO 62
	0.60 % @Thickness 2.00 mm	Sim. to ISO 62
Moisture Absorption	0.200 % @Thickness 2.00 mm	Sim. to ISO 62
Linear Mold Shrinkage, Flow	0.014 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.015 cm/cm	ISO 294-4, 2577
Melt Flow	14 g/10 min @Load 2.16 kg, Temperature 240 °C	cm³/10min Volumetric; ISO 1133
	15 g/10 min @Load 2.16 kg, Temperature 240 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Puncture Resistance	3200 N @Temperature 23.0 °C	maximum force; ISO 6603-2
Hardness, Shore D	50	15s; ISO 48-4
	<= 55	ISO 48-4
Tensile Stress at Strain	10.5 MPa @Strain 5.0 %	1BA specimen at 50mm/min; ISO 527-1/-2
	13.0 MPa @Strain 10 %	ISO 527-1/-2
	16.0 MPa @Strain 50 %	ISO 527-1/-2
Flexural Modulus	430 MPa	ISO 178
Charpy Impact Unnotched	NB @Temperature -30.0 °C	ISO 179/1eU
	NB @Temperature 23.0 °C	ISO 179/1eU
Puncture Energy	39.0 J @Temperature 23.0 °C	ISO 6603-2
Tear Strength	105 kN/m	normal; ISO 34-1
	130 kN/m	parallel; ISO 34-1

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	IEC 62631-3-1
Surface Resistance	5.00e+14 ohm	IEC 62631-3-2
Dielectric Constant	4.4 @Frequency 1e+6 Hz	IEC 62631-2-1
	4.6 @Frequency 100 Hz	IEC 62631-2-1
Dielectric Strength	20.0 kV/mm	IEC 60243-1
Dissipation Factor	0.0070 @Frequency 100 Hz	IEC 62631-2-1
	0.023 @Frequency 1e+6 Hz	IEC 62631-2-1

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	180 µm/m-°C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	180 µm/m-°C	ISO 11359-1/-2
Melting Point	222 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	50.0 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	40.0 °C	ISO 75-1/-2
Brittleness Temperature	-100 °C	ISO 974
Glass Transition Temp, Tg	-55.0 °C	10°C/min; ISO 11357-1/-2
Flammability, UL94	HB @Thickness 1.50 mm	IEC 60695-11-10
	HB @Thickness 3.00 mm	IEC 60695-11-10
Flame Spread	23.0 mm/min @Thickness 1.00 mm	ISO 3795 (FMVSS 302)
Oxygen Index	22 %	ISO 4589-1/-2

Processing Properties	Original Value	Comments
Melt Temperature	245 °C	Optimum, Injection
	240 - 250 °C	Range, Injection
Mold Temperature	45.0 °C	Optimum, Injection
	40.0 - 55.0 °C	Injection
Drying Temperature	100 °C	Injection
Dry Time	3.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.050 %	Injection

Descriptive Properties
Drying Recommended	yes	Injection
Eff. thermal diffusivity (m²/s)	5.44E-08
Emission of organic compounds (µgC/g)	2.7	VDA 277
FMVSS Class	SE/B	ISO 3795 (FMVSS 302)
Odor Class	5	VDA 270
Polymer	(TPC+PBT)

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PDSX5195 / 197835

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