Celanese Celanex® 2001 PBT, Unfilled

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Celanese Celanex® 2001 PBT, Unfilled
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Celanex 2001 is an unreinforced polybutylene terephthalate resin with improved hydrolysis resistance developed for use in fiber optic buffer tube applications. Celanex 2001 exhibits the high melt strength required for profile extrusion. Information provided by Celanese
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Physical Properties	Original Value	Comments

Specific Gravity	1.31 g/cc	ASTM D792
Density	1.31 g/cc	ISO 1183
Water Absorption	0.080 % @Temperature 22.8 °C	24hr immersion; ASTM D570
Moisture Absorption	0.190 %	23°C/50%RH; ISO 62
Linear Mold Shrinkage, Flow	0.018 - 0.020 cm/cm	ASTM D955
	0.018 - 0.020 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.018 - 0.020 cm/cm	ISO 294-4
Melt Flow	6.5 g/10 min	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	72	ISO 2039-2
Tensile Strength at Break	37.0 MPa	50mm/min; ISO 527-2/1A
Tensile Strength, Yield	60.0 MPa	50mm/min; ISO 527-2/1A
	8000 psi	ASTM D638
Tensile Stress at Strain	33.0 MPa @Strain 50 %	ISO 527-2/1A
Elongation at Break	>= 50 %
	200 %	ASTM D638
	200 %	50mm/min; ISO 527-2/1A
Elongation at Yield	6.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	2600 MPa	50mm/min; ISO 527-2/1A
Flexural Strength	80.0 MPa	ISO 178
	12000 psi	ASTM D790
Flexural Modulus	2500 MPa	ISO 178
	330000 psi	ASTM D790
Izod Impact, Notched	1.00 ft-lb/in	ASTM D256
Izod Impact, Notched (ISO)	5.50 kJ/m²	ISO 180/1A
Charpy Impact Unnotched	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
Charpy Impact, Notched	7.00 kJ/m²	ISO 179/1eA
	4.20 kJ/m² @Temperature -30.0 °C	ISO 179/1eA

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	IEC 60093
	1.00e+17 ohm-cm	ASTM D257
Surface Resistance	>= 1.00e+15 ohm	IEC 60093
Dielectric Constant	3.0 @Frequency 100 Hz	IEC 60250
	3.2 @Frequency 1e+6 Hz	ASTM D150
	3.2 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	15.0 kV/mm	IEC 60243-1
	400 V/mil	short term; ASTM D149
Dissipation Factor	0.0020 @Frequency 1e+6 Hz	ASTM D150
	0.020 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	130 µm/m-°C	ISO 11359-2
CTE, linear, Transverse to Flow	88.0 µm/m-°C	ISO 11359-2
Melting Point	225 °C	10°C/min; ISO 11357-1,-2,-3
	437 °F	ASTM D3418
Deflection Temperature at 0.46 MPa (66 psi)	150 °C	ISO 75-1, -2
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	ISO 75-1, -2
Vicat Softening Point	185 °C	ISO 306
Glass Transition Temp, Tg	60.0 °C	ISO 11357-1,-2,-3
Flammability, UL94	HB

Processing Properties	Original Value	Comments
Processing Temperature	65.0 - 93.0 °C	cavity
	250 - 260 °C	hot runner
Feed Temperature	230 - 240 °C
Zone 1	230 - 240 °C
Zone 2	235 - 250 °C
Zone 3	235 - 250 °C
Zone 4	240 - 260 °C
Die Temperature	250 - 260 °C
Melt Temperature	243 °C	ISO 294
	235 - 260 °C
Mold Temperature	82.0 °C	ISO 294
Injection Velocity	300 mm/sec	ISO 294
Drying Temperature	120 - 130 °C
Dry Time	4.00 hour
Moisture Content	<= 0.020 %
Hold Pressure	48.0 MPa	ISO 294

Descriptive Properties
Injection molding	Yes
Injection speed	medium-fast
Processing conditions acc. ISO	7792-2

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