| About |
|---|
| TPX has a remarkable and unique combination of transparency and resistance to heat and chemicals. It also has unique acoustical properties. It is used in a wide variety of applications including speaker cones, gas separating membranes, release films and carrier films for ceramic slurry. Applications Include: Speaker cones Gas separating membranes Release films Carrier films for ceramic slurry Antennas Medical instrument cover Ultrasonic imaging equipment Advantages of TPX Film: Lowest specific gravity of any known thermoplastic Low moisture absorption Exceptional electrical properties Good chemical resistance High heat resistance Excellent acoustical properties Transparency Resin FDA compliant&& |
| Product Description | |
|---|---|
| Supplier | Westlake Plastics |
| Generic | Poly 4-methylpentene-1 copolymer |
| Material Status | Commercial: Active |
| Features | Good Electrical Properties,Food contact compliance,High Heat Resistance,Ultrasonic soldering,Solvent resistance,Low moisture absorption,HB |
| Availabilitys | North America |
| Process Methods | Thermo forming |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.833 | g/cm³ | ASTM D792 |
| Water absorption rate | |||
| 24hr | 0.010 | % | ASTM D570 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| Elastic modulus | |||
| MD | 1930 | MPa | ASTM D882 |
| tensile strength | |||
| MD, yield | 28.3 | MPa | ASTM D882 |
| Tensile strain | |||
| MD, fracture | 10 | % | ASTM D882 |
| Bending modulus | |||
| MD | 1450 | MPa | ASTM D790 |
| Oxygen permeability | 13000 | cm³·mm/m²/atm/24 hr | |
| Water vapor transmittance | 20 | g·mm/m²/atm/24 hr | |
| Carbon dioxide permeability | 45000 | cm³·mm/m²/atm/24 hr | |
| Nitrogen transfer rate | 3100 | cm³·mm/m²/atm/24 hr | |
| Area coefficient | 32700 | in²/lb/mil |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 100 | ℃ | ASTM D648 |
| Continuous use temperature | 100 | ℃ | |
| Melting temperature | 235 | ℃ | DSC |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+16 | ohms | ASTM D257 |
| Dielectric strength | |||
| 0.0762 mm | 150 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 1 kHz | 2.12 | ASTM D150 | |
| Dissipation factor | |||
| 1 MHz | 2.5E-5 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 | |
| Extreme oxygen index | < 25 | % | ASTM D2863 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.463 | ||
| Transmittance | 90.0 | % | |
| Haze | 2.0 | % | ASTM D1003 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Temperature of hot forming mold | 120 to 220 | ℃ | |
| tear strength | |||
| prop | 48.3 | kN/m | ASTM D1004 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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