UBE Upilex® 25VT Polyimide Film

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UBE Upilex® 25VT Polyimide Film
Categories:	Polymer; Thermoset; Polyimide, TS; Polyimide, Thermoset Film
Material Notes:	UPILEX®-VT and UPILEX®-NVT are heat bonding polyimide films having heat fusing layers on both side of the film, created by the polyimide resin equivalent of UPILEX®-S. High quality flexible circuits without an adhesive layer are obtained, by heating and pressing UPILEX®-VT or UPILEX®-NVT with metal (Cu, SUS, Al) foil. In addition, they are also available for bonding films comprised of metal, ceramic and other materials. Flexible circuits without adhesive are produced. This offers high tensile strength and tear strength. Offering the same low water absorption, low dimensional change and high heat resistance as UPILEX®-S, with the addition of laminate workability in the heat press. Information provided by UBE Industries, LTD
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Physical Properties	Metric	English	Comments

Density	1.43 g/cc	0.0517 lb/in³	ASTM D1505-03
Water Absorption	1.1 %	1.1 %	ASTM D570

Mechanical Properties	Metric	English	Comments
Tensile Strength	530 MPa	76900 psi	ASTM D882
Elongation at Break	90 %	90 %	ASTM D882
Tensile Modulus	7.50 GPa	1090 ksi	ASTM D882
Tear Strength	3.00 kN/m	17.1 pli	IPC-TM-650 2.4.17.1

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm	>= 1.00e+14 ohm-cm	DC 100V; ASTM D257
Surface Resistance	>= 1.00e+15 ohm	>= 1.00e+15 ohm	DC 100V; ASTM D257
Dielectric Constant	3.2 @Frequency 1e+9 Hz	3.2 @Frequency 1e+9 Hz	Triplate-Line Resonator
	3.2 @Frequency 1e+10 Hz	3.2 @Frequency 1e+10 Hz	Triplate-Line Resonator
Dielectric Strength	7.20 kV/mm @Frequency 60 Hz	183 kV/in @Frequency 60 Hz	ASTM D149
Dissipation Factor	0.0050 @Frequency 1e+9 Hz	0.0050 @Frequency 1e+9 Hz	Triplate-Line Resonator
	0.0070 @Frequency 1e+10 Hz	0.0070 @Frequency 1e+10 Hz	Triplate-Line Resonator

Thermal Properties	Metric	English	Comments
CTE, linear	20.0 µm/m-°C @Temperature 50.0 - 300 °C	11.1 µin/in-°F @Temperature 122 - 572 °F	Fine linear dilatometer
Decomposition Temperature	584 °C	1080 °F	TG-DTA. In air. @ 5% wieght loss
Flammability, UL94	V-0	V-0
Shrinkage	0.31 % @Temperature 300 °C, Time 7200 sec	0.31 % @Temperature 572 °F, Time 2.00 hour	heat; JIS C2318

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PUBD9851 / 287314

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