Chemours 340 PFA Perfluoroalkoxy Copolymer

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Chemours 340 PFA Perfluoroalkoxy Copolymer (discontinued **)
Categories:	Polymer; Thermoplastic; Fluoropolymer; Perfluoroalkoxy (PFA)
Material Notes:	Combines the processing ease of conventional thermoplastic resins with the excellent properties of PTFE. High chemical resistance, superior electrical properties, high service temperatures, superior high temperature creep resistance, excellent low temperature toughness, and exceptional flame resistance. Processed by conventional melt-extrusion and molding techniques. Resin Characteristics: General purpose; highest flow rate. Uses: Tubing; injection- or blow-molded articles Chemours was formed from former DuPont performance chemicals businesses, including DuPont Fluoroproducts, in 2015. This specific product was discontinued prior to the formation of Chemours.
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Physical Properties	Metric	English	Comments

Specific Gravity	2.12 - 2.17 g/cc	2.12 - 2.17 g/cc	ASTM D792
Water Absorption	<= 0.030 %	<= 0.030 %	24 hours; ASTM D570
Melt Flow	14 g/10 min	14 g/10 min	ASTM D3307

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	55	55	ASTM D2240
Tensile Strength, Ultimate	25.0 MPa	3630 psi	ASTM D3307
	12.0 MPa @Temperature 250 °C	1740 psi @Temperature 482 °F	ASTM D3307
	129 MPa @Temperature -196 °C	18700 psi @Temperature -321 °F	ASTM D1780
Tensile Strength, Yield	13.8 MPa	2000 psi	ASTM D3307
Elongation at Break	300 %	300 %	ASTM D3307
	8.0 % @Temperature -196 °C	8.0 % @Temperature -321 °F	ASTM D1708
	480 % @Temperature 250 °C	480 % @Temperature 482 °F	ASTM D3307
Flexural Modulus	0.590 GPa	85.6 ksi	ASTM D790
	0.0550 GPa @Temperature 250 °C	7.98 ksi @Temperature 482 °F	ASTM D790
Compressive Strength	24.0 MPa @Temperature 23.0 °C	3480 psi @Temperature 73.4 °F	ASTM D695
	414 MPa @Temperature -196 °C	60000 psi @Temperature -321 °F	ASTM D695
Compressive Modulus	69.0 GPa @Temperature 23.0 °C	10000 ksi @Temperature 73.4 °F	ASTM D695
	4690 GPa @Temperature -196 °C	680000 ksi @Temperature -321 °F	ASTM D695
Izod Impact, Notched	NB	NB	ASTM D256
	0.640 J/cm @Temperature -196 °C	1.20 ft-lb/in @Temperature -321 °F	ASTM D256-72a
Coefficient of Friction, Dynamic	0.21	0.21	3 ft/min; 100 psi; dry vs. steel
	0.214	0.214	10 ft/min; 100 psi; dry vs. steel
	0.229	0.229	30 ft/min; 100 psi; dry vs. steel
	0.289	0.289	50 ft/min; 100 psi; dry vs. steel
K (wear) Factor	1400 x 10^-8 mm³/N-M	694 x 10^-10 in³-min/ft-lb-hr	50 ft/min; 100 psi; dry vs. steel
	1980 x 10^-8 mm³/N-M	983 x 10^-10 in³-min/ft-lb-hr	30 ft/min; 100 psi; dry vs. steel
	3205 x 10^-8 mm³/N-M	1591 x 10^-10 in³-min/ft-lb-hr	3 ft/min; 100 psi; dry vs. steel
	3700 x 10^-8 mm³/N-M	1837 x 10^-10 in³-min/ft-lb-hr	10 ft/min; 100 psi; dry vs. steel

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+18 ohm-cm	1.00e+18 ohm-cm	ASTM D257
Surface Resistivity per Square	>= 1.00e+17 ohm	>= 1.00e+17 ohm	ASTM D257
Dielectric Constant	2.03 @Frequency 60.0 - 1.00e+6 Hz	2.03 @Frequency 60.0 - 1.00e+6 Hz	ASTM D150
Dielectric Strength	80.0 kV/mm @Thickness 0.0250 mm	2030 kV/in @Thickness 0.000984 in	Short time; ASTM D149
Dissipation Factor	0.00010 @Frequency 60.0 - 1.00e+6 Hz	0.00010 @Frequency 60.0 - 1.00e+6 Hz	ASTM D150
Arc Resistance	>= 180 sec	>= 180 sec	ASTM D495

Thermal Properties	Metric	English	Comments
CTE, linear	140 µm/m-°C @Temperature 21.0 - 100 °C	77.8 µin/in-°F @Temperature 69.8 - 212 °F	ASTM D696
	170 µm/m-°C @Temperature 100 - 149 °C	94.4 µin/in-°F @Temperature 212 - 300 °F	ASTM D696
	210 µm/m-°C @Temperature 149 - 208 °C	117 µin/in-°F @Temperature 300 - 406 °F	ASTM D696
Specific Heat Capacity	1.172 J/g-°C @Temperature 100 °C	0.2801 BTU/lb-°F @Temperature 212 °F
Melting Point	302 - 310 °C	576 - 590 °F	ASTM D3418
Maximum Service Temperature, Air	260 °C	500 °F
Glass Transition Temp, Tg	-80.0 °C	-112 °F	Glass II
	90.0 °C	194 °F	Glass I
Flammability, UL94	V-0	V-0
Oxygen Index	>= 95 %	>= 95 %	ASTM D2863

Optical Properties	Metric	English	Comments
Refractive Index	1.35	1.35	ASTM D542-50
Haze	4.0 %	4.0 %	ASTM D1003-52
Transmission, Visible	91 - 96 % @Thickness 0.0250 mm	91 - 96 % @Thickness 0.000984 in	0.40 to 0.70 µm
IR Transmittance	96 - 98 %	96 - 98 %	2.5%; 0.70 to 2.40 µm
UV Transmittance	77 - 91 % @Thickness 0.0250 mm	77 - 91 % @Thickness 0.000984 in	0.25 to 0.70 µm

Processing Properties	Metric	English	Comments
Processing Temperature	379 - 399 °C	714 - 750 °F	Cure Temperature

Descriptive Properties
20% Hydrochloric Acid Transmission, g/100sq in.	<0.02
50% Sodium Hydroxide Transmission, g/100sq in.	<.02
Acetic Acid Transmission, g/100sq in.	0.41
Acetone Transmission, g/100sq in.	0.95
Acetophenone Transmission, g/100sq in.	0.5
Benzene Transmission, g/100sq in.	0.64
Carbon Tetrachloride Transmission, g/100sq in.	0.31
Chemical/Solvent Resistance	Excellent
Ethyl Acetate Transmission, g/100sq in.	0.76
Folding Endurance, # cycles, .18-.20 mm	15000
Heat of Combustion J/g	5300		ASTM D240
Hexane Transmission, g/100sq in.	0.56
Piperidine Transmission, g/100sq in.	0.04
Red Fuming Nitric Acid Transmission, g/100sq in.	7.5-1.4
Salt Spray Resistance on aluminum, Hours	1000
Sulfuric Acid Transmission, g/100sq in.	0.00001
Water Transmission, g/100sq in.	0.4
Weather Resistance	10		Years unaffected in Florida Exposure

**
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