Songhan Plastic Technology Co.,Ltd.

Goodfellow Polyethylene Naphthalate (PEN) Film

Category Polymer , Film , Thermoplastic , Polyester, TP
Manufacturer Goodfellow
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Goodfellow Polyethylene Naphthalate (PEN) Film.pdf
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Material Notes:
A polyester that is chemically quite similar to PET but which is more temperature resistant. So far available only as biaxially oriented and heat stabilized films, they are semi-crystalline and colorless, either crystal clear or slightly hazy (the latter are available from Goodfellow stock). Compared to their PET equivalents, they start to shrink significantly at 190C rather than 150C and are certified for long term electrical use at 155C rather than 105/130C. Their tensile strengths are similar, but the modulus of PEN films is higher - say 25% at ambient temperatures but several times higher in the 100-150C region. They also have better UV resistance and barrier properties and are more resistant to hydrolysis in alkaline or very hot aqueous conditions. They are, however, more expensive and have a lower flex life.Applications for the films are mainly in the electrical and electronic areas.Information provided by Goodfellow.
Physical Properties Metric English Comments
Density 1.36 g/cc
0.0491 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength at Break 200 MPa
29000 psi
biax film
Elongation at Break 60 %
60 %
biax film
Tensile Modulus 5.00 - 5.50 GPa
725 - 798 ksi
biax film
Coefficient of Friction 0.27
biax film
Thermal Properties Metric English Comments
CTE, linear 20.0 - 21.0 µm/m-°C

@Temperature 20.0 °C
11.1 - 11.7 µin/in-°F

@Temperature 68.0 °F
biax film
Maximum Service Temperature, Air 155 °C
311 °F
Flammability, UL94 V-2
Shrinkage 0.800 %

@Temperature 190 °C,
Time 300 sec
0.800 %

@Temperature 374 °F,
Time 0.0833 hour
Optical Properties Metric English Comments
Transmission, Visible 84 %

@Thickness 0.0750 mm
84 %

@Thickness 0.00295 in
Electrical Properties Metric English Comments
Electrical Resistivity 1.00e+15 ohm-cm
1.00e+15 ohm-cm
Surface Resistivity per Square 1.00e+14 ohm
1.00e+14 ohm
Dielectric Constant 3.2

@Frequency 10000 Hz

@Frequency 10000 Hz
Dielectric Strength 160 kV/mm
4060 kV/in
at 0.075 mm
Dissipation Factor 0.0048

@Frequency 10000 Hz

@Frequency 10000 Hz
Descriptive Properties Value Comments
Chemical Resistance - Alcohols Good
Chemical Resistance - Alkalis Good
Chemical Resistance - Aromatics Good
Chemical Resistance - Concentrated Acids Good-Poor
Chemical Resistance - Dilute Acids Good
Chemical Resistance - Greases and Oils Good
Chemical Resistance - Halogens Good
Chemical Resistance - Ketones Good
Permeability to Carbon Dioxide @25°C 0.01 x 10-13 cm-2 s-1 Pa -1; (film)
Permeability to Oxygen @25°C 0.006 x 10-13 cm-2 s-1 Pa -1; (film)
Permeability to Water @25°C 40 x 10-13 cm-2 s-1 Pa -1; (film)
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