- 密度 [g/cm3]: 1.16
| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.16 g/cc | 0.0420 lb/in³ | Yield Density | ||
| Water Vapor Transmission | 2.60 g/m²/day | 0.167 g/100 in²/day | 100°F / 100%RH); ASTM F1249 | ||
| Oxygen Transmission Rate | 1.10 cc/m²/day | 0.0708 cc/100 in²/day | 77°F / 0% / RH; ASTM D3985 | ||
| Thickness | 25.4 microns | 1.00 mil | |||
| Surface Tension | >= 50 dynes/cm | >= 50 dynes/cm | untreated side; ASTM D5946 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Film Elongation at Break, MD | 70 - 110 % | 70 - 110 % | ASTM D882 | ||
| Film Elongation at Break, TD | 60 - 90 % | 60 - 90 % | ASTM D882 | ||
| Secant Modulus, MD | 2.413 - 3.551 GPa | 350.0 - 515.0 ksi | ASTM D882 | ||
| Secant Modulus, TD | 2.275 - 3.282 GPa | 330.0 - 476.0 ksi | ASTM D882 | ||
| Coefficient of Friction | 0.21 - 0.41 | 0.21 - 0.41 | film to stainless steel; ASTM D1894 | ||
| 0.65 - 0.86 | 0.65 - 0.86 | film to film; ASTM D1894 | |||
| Tear Strength Test | 1150 - 1475 | 1150 - 1475 | graves tear TD, grams/mil; ASTM D1004 | ||
| 1150 - 1500 | 1150 - 1500 | graves tear MD, grams/mil; ASTM D1004 | |||
| Film Tensile Strength at Break, MD | 234 - 283 MPa | 34000 - 41000 psi | ASTM D882 | ||
| Film Tensile Strength at Break, TD | 221 - 283 MPa | 32000 - 41000 psi | ASTM D882 | ||
| Thermal Properties | Metric | English | Comments | ||
| Shrinkage, MD | 1.6 - 2.3 % | 1.6 - 2.3 % | 320°F / 160°C - 5 minutes; ASTM D1204 | ||
| Shrinkage, TD | 0.20 - 0.70 % | 0.20 - 0.70 % | 320°F / 160°C - 5 minutes; ASTM D1204 | ||
| Descriptive Properties | |||||
| Helium Transition Rate | max 93 cc/m2/day | ASTM 1434 | |||