Murtfeldt Murflor® Polytetrafluoroethylene

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Murtfeldt Murflor® Polytetrafluoroethylene
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Extruded
Material Notes:	Murflor® materials are suited to use in applications that require an excellent resistance to chemicals and heating steam. Murflor®’s working range starts at -200°C and can extend to +260°C with no mechanical load. Murflor® also has the lowest dynamic friction coefficient of all thermoplastics. Special Properties: • Best dynamic friction properties of all thermoplastics • No stick/slip effect • Very good anti-adhesion properties • Electrically isolating • Very high resistance to chemicals • Very high resistance to hydrolysis • Very tough, even at low temperatures • Approved for use in the food industry (FDA Information provided by Murtfeldt Kunststoffe GmbH & Co. KG.
Key Words:	PTFE
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Physical Properties	Original Value	Comments

Density	2.18 g/cc	ISO 1183-1

Mechanical Properties	Original Value	Comments
Hardness, Shore D	58	DIN 53505
Tensile Strength, Yield	20.0 MPa	ISO 527-1/-2
Elongation at Break	300 %	ISO 527-1/-2
Modulus of Elasticity	0.750 GPa
Compressive Yield Strength	4.50 MPa @Strain 1 %	dry; ISO 604
Charpy Impact Unnotched	NB	ISO 179
Charpy Impact, Notched	16.0 kJ/m²	ISO 179-1/1eA
Coefficient of Friction, Dynamic	0.080
Sand Slurry	21	µm/km

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+17 ohm-cm	IEC 60093
Surface Resistance	1.00e+15 ohm	IEC 60093
Dielectric Constant	2.0 @Frequency 100 Hz	IEC 60250
	2.1 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	20.0 kV/mm	IEC 60243-1
Dielectric Loss Index	0.00010 @Frequency 1e+6 Hz	IEC 60250
	0.00030 @Frequency 100 Hz	IEC 60250

Thermal Properties	Original Value	Comments
CTE, linear	160 µm/m-°C @Temperature 23.0 - 100 °C
Melting Point	321 °C	ISO 11357-1
Maximum Service Temperature, Air	260 °C @Time 7.20e+7 sec
	300 °C @Time <=86400 sec
Minimum Service Temperature, Air	-200 °C
Glass Transition Temp, Tg	127 °C	ISO 11357-1
Flammability, UL94	V-0

Compliance Properties	Original Value	Comments
FDA	Yes

Descriptive Properties
Color	Natural

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PMURT934 / 156581

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