DIFFERENCES OF POLYESTER FILM
Comparative data for plastic films
You can examine the details of polyester films that are different from other plastic films on this page.
PRODUCTION DIFFERENCES
| Units | BOPET | BOPP | PVC | |
| Production | ./. | Extrusion | Biaxial | Perdah Merdanesi |
| Tension | ./. | Biaxial | Biaxial | No polymer chain orientation/ or transverse orientation to the production line |
| Thickness | µm | 1 - 500 | 4 - 80 | Transverse orientation: 30 to 100 No orientation: 100 to 600 |
MECHANICAL DIFFERENCES
| Orientation | Units | BOPET | BOPP | PVC | |
Tensile Strength | MD* TD* | N/mm ² | 200 200 | 150 250 | 50 50 |
| Breaking Elongation | MD* TD* | % | 100 100 | 150 50 | 10 10 |
| Tension required for % 5 elongation | MD* TD* | N/mm ² | 100 100 | ./. ./. | ./. ./. |
| Testing Standards | ISO 527-1-2 | ISO 527-1-2 | ISO 527-1-2 | ||
| Testing Condition | 23°C, 50% | 23°C, 50% | 23°C, 50% | ||
| Young’s Modulus | MD* TD* | N/mm ² | 4500 4500 | 2500 4500 | ./. ./. |
ELECTRICAL SPECS
BOPET | BOPP | 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 | BOPET | BOPP | PVC | |
| Shrinkage (MD*) | % | 1 - 3 (150°C) | 3 - 5 (120°C) | 4 - 7 (140°C) |
| Shrinkage (TD*) | % | 0 - 2 (150°C) | 0 - 2 (120°C) | -0,5 - 2 (140°C) |
| Test Standards | ./. | DIN 40634 | DIN 40634 | DIN 40634 |
| Test Conditions | ./. | 150°C, 15 min | 120°C, 15 min | 140°C, 15 min |
TYPICAL THERMAL VALUES
Units | BOPET | BOPP | PVC | |
| Melting Point | °C | 260 | 166 | 200 - 220 |
| Glass Transition Temperature | °C | 70 | -20 | 80 |
| Test Standards | ./. | Differential Scanning Calorimetre | Differential Scanning Calorimetre | Differential Scanning Calorimetre |
| Test Conditions | ./. | 3K/min | 3K/min | 3K/min |
BARRIER VALUES
Units | BOPET | BOPP | PVC | |
| Oxygen | cm 3 /m² x d x bar | 17 | 250 | 40 |
| Water Vapour | g/m² x d | 2 | 0,25 | 3 |
| Testing Standards for Oxygen | ./. | DIN 53380 | DIN 53380 | DIN 53380 |
| Testing Standards for Water Vapour | ./. | DIN 53122 | DIN 53122 | DIN 53122 |
| Test Conditions | ./. | 23°C | 23°C | 23°C |
DİĞER ÖZELLİKLER
| Units | BOPET | BOPP | PVC | |
| Density | g/cm³ | 1,4 | 0,9 | 1,4 |
| Water Absorbation | % | 0,5 | < 0,1 | 0,5 |
| Test Standards | ./. | DIN 53472 and ASTM D 570 | DIN 53472 and ASTM D 570 | DIN 53472 and ASTM D 570 |
| Test Conditions | ./. | 4 days in 23°C water | 4 days in 23°C water | 4 days in 23°C water |
MD*: Machine direction
TD*: Transverse direction
For more information, please have a look at the section about “polyester film production process”
Note: The property values provided in this text are similar to the property values of our products. However, the purpose of this text is to differentiate the different types of products. For detailed information about our products, please contact us.
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