3M Dyneon™ TFM™ 1705 Modified PTFE Powder

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3M Dyneon™ TFM™ 1705 Modified PTFE Powder (discontinued **)
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Molded
Material Notes:	Type II, gr. 1 PTFE. Dyneon™ TFM™ 1705 PTFE is a second-generation modified polytetrafluoro-ethylene (PTFE) that maintains the exceptional chemical and heat resistance properties of first-generation PTFE, but with a significantly lower melt viscosity giving better particle fusion during sintering and smoother surfaces. Dyneon TFM 1705 PTFE has an adjusted melt viscosity. This gives higher stability for better performance in large billet production with reduced scrap in film skiving. It is a non-free-flowing compression molding powder and is the material of choice for diaphragms and other tough flex fatigue applications. Data provided by Dyneon.
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Physical Properties	Original Value	Comments

Density	2.16 g/cc	ASTM D4894
Apparent Bulk Density	0.420 g/cc	ASTM D4894
Particle Size	25 µm	ASTM D4894
Deformation	2.0 % @Pressure 15.00 MPa	ASTM D621
	4.0 % @Time 86400 sec, Pressure 15.00 MPa	ASTM D621

Mechanical Properties	Original Value	Comments
Hardness, Shore D	62	Initial; ASTM D2240
	58 @Time 15.0 sec	ASTM D2240
Tensile Strength at Break	333 MPa	ASTM D4894
Elongation at Break	450 %	ASTM D4894
Tensile Modulus	0.650 GPa	ASTM D638

Electrical Properties	Original Value	Comments
Dielectric Strength	3.70 kV/mm	ASTM D 149

Thermal Properties	Original Value	Comments
CTE, linear	59.0 µm/m-°C @Temperature 30.0 - 100 °C	ASTM E831
	77.0 µm/m-°C @Temperature 100 - 200 °C	ASTM E831
	93.0 µm/m-°C @Temperature 200 - 300 °C	ASTM E831
Thermal Conductivity	0.220 W/m-K @Temperature 100 °C	ASTM E831
	0.230 W/m-K @Temperature 250 °C	ASTM E831
Shrinkage	5.8 %	ASTM D4894

**
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PDYM01 / 34652

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