World Class in Polyester Film
Comparative data for plastic films

Comparative data for plastic films

MANUFACTURING

  Units PET PP PVC
Manufacturing ./. Extrusion Extrusion Calendering
Stretching ./. biaxial biaxial none or additionally transverse
Thickness range µm 1 to 500 4 to 80 30 to 100 stretched
transv.(100 to 600 unstretched)

MECHANICAL TYPICAL VALUES

    Units PET PP PVC
Tensile strength MD* N/mm ² 200 150 50
TD* N/mm ² 200 250 50
Elongation at break MD* % 100 150 10
TD* % 100 50 10
Tensile stress required to cause 5% elongation MD* N/mm ² 100 ./. ./.
TD* N/mm ² 100 ./. ./.
Test standard   ./. ISO 527-1-2 ISO 527-1-2 ISO 527-1-2
Test conditions   ./. Testing rate
100%/min, 23°C,
50% r.h.		 Testing rate
100%/min, 23°C,
50% r.h.		 Testing rate
100%/min, 23°C,
50% r.h.
Young's modulus MD* N/mm ² 4 500 2 500 ./.
TD* N/mm ² 4 500 4 500 ./.
Test standard   ./. ISO 527-1-2 ISO 527-1-2 ISO 527-1-2
Test conditions   ./. Testing rate
1%/min, 23°C,
50% r.h.		 Testing rate
1%/min, 23°C,
50% r.h.		 Testing rate
1%/min, 23°C,
50% r.h.

*) MD=Machine direction, TD=Transverse direction

ELECTRICAL TECHNICAL VALUES

  Units PET PP PVC
Dielectric constant ./. 3,3 2,2 4,2
Dielectric dissipation factor ./. 0,002 0,0002 0,02
Test standard ./. DIN 40634 DIN 40634 DIN 40634
Test conditions ./. 23°C, 50 Hz 23°C, 50 Hz 23°C, 50 Hz

DIMENSIONAL STABILITY

    Units PET PP PVC
Shrinkage MD* % 1 bis 3 (150°C) 3 bis 5 (120°C) 4 bis 7 (140°C)
TD* % 0 to 2 (150°C) 0 to 2 (120°C) -0,5 to 2 (140°C)
Test standard   ./. DIN 40634 DIN 40634 DIN 40634
Test condition   ./. 150°C, 15 min 120°C, 15 min 140°C, 15 min

*) MD=Machine direction, TD=Transverse direction

THERMAL TYPICAL VALUES

  Units PET PP PVC
Melting point °C 260 166 200 to 220
Glas transition temperature °C 70 -20 80
Test standard ./. Differential scanning
calorimetry		 Differential scanning
calorimetry		 Differential scanning
calorimetry
Test conditions ./. 3K/min 3K/min 3K/min

BARRIER DATA

100 µm thickness, 23°C Units PET PP PVC
Oxygen (0% r.h.) cm 3 /m² x d x bar 17 250 40
Test standard ./. DIN 53380 DIN 53380 DIN 53380
Test conditions ./. 23°C 23°C 23°C
Water vapor (85% r.h.) g/m² x d 2 0,25 3
Test standard ./. DIN 53122 DIN 53122 DIN 53122
Test conditions ./. 23°C 23°C 23°C

OTHER

  Units PET PP PVC
Density g/cm 3 1,4 0,9 1,4
Test standard ./. ASTM D 1505-68
Method C		 ASTM D 1505-68
Method C		 ASTM D 1505-68
Method C
Test condition ./. 23°C 23°C 23°C
Water absorption % 0,5 < 0,1 0,5
Test standard ./. DIN 53472 and
ASTM D 570		 DIN 53472 and
ASTM D 570		 DIN 53472 and
ASTM D 570
Test condition ./. Immersed in water for 4 days at 23°C Immersed in water for 4 days at 23°C Immersed in water for 4 days at 23°C

This information provided here is consistent with the current state of our knowledge and is intended to provide general information on our products and their applications. It does not constitute a guarantee of any specific product attributes or the suitability of products for specific applications. Any existing commercial rights or patents must be observed. We guarantee full product quality under the terms of the General Conditions of Sale of MITSUBISHI POLYESTER FILM GmbH.