| About |
|---|
| Parylene is the name for members of a unique polymer series. The basic member of the series, Parylene N, is poly(para-Xylylene), a completely linear, highly crystalline material. Parylene HT, the newest commercially available Parylene, replaces the alpha hydrogen atoms of the N dimer with fluorine. This variant of Parylene is useful in high temperature applications (short-term up to 450°C) and those in which long-term UV stability is required. Parylene HT also has the lowest coefficient of friction and dielectric constant, and the highest penetrating ability of the four variants.&& |
| Product Description | |
|---|---|
| Generic | PPX |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,Gamma radiation,Biocompatible,Linear polymer structure,Solvent resistance,High crystallization |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.32 | g/cm³ | ASTM D1505 |
| Water absorption rate | |||
| 24hr | < 0.010 | % | ASTM D570 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| Secant modulus | |||
| MD | 2550 | MPa | ASTM D5026 |
| tensile strength | ASTM D882 | ||
| MD, yield | 34.5 | MPa | ASTM D882 |
| MD, fracture | 51.7 | MPa | ASTM D882 |
| Tensile strain | ASTM D882 | ||
| MD, yield | 2.0 | % | ASTM D882 |
| MD, fracture | < 200 | % | ASTM D882 |
| Oxygen permeability | |||
| 25℃ | 24 | cm³·mm/m²/atm/24 hr | ASTM D1434 |
| Water vapor transmittance | |||
| 38℃，100% RH | 0.22 | g·mm/m²/atm/24 hr | ASTM F1249 |
| Carbon dioxide permeability | |||
| 25℃ | 95 | cm³·mm/m²/atm/24 hr | ASTM D1434 |
| Nitrogen transfer rate | |||
| 25℃ | 4.8 | cm³·mm/m²/atm/24 hr | ASTM D1434 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Continuous use temperature | 350 | ℃ | |
| Melting temperature | > 500 | ℃ | DSC |
| Linear coefficient of thermal expansion | |||
| MD：25℃ | 3.6E-5 | 1/℃ | TMA |
| specific heat | |||
| 20℃ | 1040 | J/kg/℃ | |
| Thermal conductivity coefficient | |||
| 25℃ | 0.096 | W/m/K | ASTM D1461 |
| Operating temperature | |||
| ShortTerm | 450 | ℃ |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 5.0E+15 | ohms | ASTM D257 |
| Volume resistivity | |||
| 23℃ | 2.0E+17 | ohms·cm | ASTM D257 |
| Dielectric strength | 210 | kV/mm | ASTM D149 |
| Dielectric constant | ASTM D150 | ||
| 60 Hz | 2.21 | ASTM D150 | |
| 1 kHz | 2.20 | ASTM D150 | |
| 1 MHz | 2.17 | ASTM D150 | |
| Dissipation factor | ASTM D150 | ||
| 60 Hz | < 2.0E-4 | ASTM D150 | |
| 1 kHz | 2.0E-3 | ASTM D150 | |
| 1 MHz | 1.0E-3 | ASTM D150 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.559 | ASTM D542 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 122 | ASTM D785 | |
| friction coefficient | ASTM D1894 | ||
| dynamic | 0.13 | ASTM D1894 | |
| static state | 0.15 | ASTM D1894 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 23°C, 50% RH |
| 3. 50% RH |
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