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| Eastman Eastar 5445 PCTG Copolyester, Film (discontinued **) | |||
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| Categories: | Polymer; Film; Thermoplastic; Polyester, TP; Polycyclohexylenedimethylene Terephthalate (PCT); Glycol-Modified PCT (PCTG) Copolyester | ||
| Material Notes: |
Eastar PCTG 5445 is an amorphous copolyester. Because of its clarity, toughness and good melt strength, Eastar PCTG Copolyester 5445 is useful in a number of applications. It has high gloss and is transparent. It is tough and resistant to stress whitening. It has fast forming cycles and is easy to form. Eastar PCTG Copolyester 5445 is sterilizable by both gamma radiation and ethylene oxide (ETO) methods. Its scrap can be reused.
Applications/Uses Key Attributes |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.23 g/cc | 0.0444 lb/in3 | ASTM D1505 |
| Melt Density |
1.08 g/cc @Temperature 285 °C |
0.0390 lb/in3 @Temperature 545 °F |
ASTM D1238 |
| Water Vapor Transmission | 7.00 g/m2/day | 0.451 g/100 in2/day | ASTM F372 |
| Oxygen Transmission | 11.0 cc-mm/m2-24hr-atm | 27.9 cc-mil/100 in2-24hr-atm | ASTM D3985 |
| Carbon Dioxide Transmission | 49.0 cc-mm/m2-24hr-atm | 124 cc-mil/100 in2-24hr-atm | ASTM D1434 |
| Thickness | 250 microns | 9.84 mil | ASTM D374 |
| Mechanical Properties | Metric | English | Comments |
| Film Tensile Strength at Yield, MD | 45.0 MPa | 6530 psi | ASTM D882 |
| Film Tensile Strength at Yield, TD | 44.0 MPa | 6380 psi | ASTM D882 |
| Tensile Modulus | 1.60 GPa | 232 ksi | TD; ASTM D882 |
| 1.60 GPa | 232 ksi | MD; ASTM D882 | |
| Coefficient of Friction | 0.50 | 0.50 | ASTM D1894 |
| Elmendorf Tear Strength, MD | >= 12.0 g/micron | >= 305 g/mil | ASTM D1922 |
| Elmendorf Tear Strength, TD | >= 12.0 g/micron | >= 305 g/mil | ASTM D1922 |
| Dart Drop | 1.84 g/micron | 46.7 g/mil | 23°C; ASTM D1709 |
| 2.16 g/micron | 54.9 g/mil | at -18°C; ASTM D1709 | |
| Film Tensile Strength at Break, MD | 57.0 MPa | 8270 psi | ASTM D882 |
| Film Tensile Strength at Break, TD | 53.0 MPa | 7690 psi | ASTM D882 |
| Thermal Properties | Metric | English | Comments |
Specific Heat Capacity 
|
1.09 J/g-°C @Temperature 10.0 °C |
0.261 BTU/lb-°F @Temperature 50.0 °F |
DSC |
|
1.14 J/g-°C @Temperature 30.0 °C |
0.272 BTU/lb-°F @Temperature 86.0 °F |
DSC | |
|
1.64 J/g-°C @Temperature 100 °C |
0.392 BTU/lb-°F @Temperature 212 °F |
DSC | |
|
1.86 J/g-°C @Temperature 180 °C |
0.445 BTU/lb-°F @Temperature 356 °F |
DSC | |
|
2.16 J/g-°C @Temperature 290 °C |
0.516 BTU/lb-°F @Temperature 554 °F |
DSC | |
| Thermal Conductivity | 0.220 W/m-K | 1.53 BTU-in/hr-ft2-°F | ASTM C177 |
| Glass Transition Temp, Tg | 87.0 °C | 189 °F | ASTM D1525 |
| Optical Properties | Metric | English | Comments |
| Refractive Index | 1.56 | 1.56 | nD; ASTM D542 |
| Haze | 1.0 % | 1.0 % | ASTM D1003 |
| Gloss | 98 % | 98 % | at 60°; ASTM D2457 |
| Transmission, Visible | 91 % | 91 % | Total Transmittance; ASTM D1003 |
Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.
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