| About |
|---|
| 49N is a low-flow epoxy prepreg engineered for bonding multilayer epoxy rigid-flex or attaching heatsinks to multilayer epoxy PCBs. With a high Tg, the prepreg can be used in high-performance or hightemperature applications compared to a standard difunctional epoxy low-flow.&& |
| Product Description | |
|---|---|
| Generic | 环氧树脂 |
| Material Status | Commercial: Active |
| Features | Good flexibility,Low liquidity,Good Electrical Properties,Fast Cure,Agglomerability,V-0 |
| Availabilitys | North America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.75 | g/cm³ | ASTM D792-A |
| Water absorption rate | |||
| 24hr | 0.10 | % | Internal Method |
| decomposition temperature | Internal Method | ||
| 5% | 302 | ℃ | Internal Method |
| Initial | 291 | ℃ | Internal Method |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 17900 | MPa | Internal Method |
| bending strength | 234 | MPa | Internal Method |
| Poisson’s ratio | 0.17 | ASTM D3039 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| peel strength | 1.6 | kN/m | Internal Method |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | 170 | ℃ | Internal Method |
| Linear coefficient of thermal expansion | |||
| MD | |||
| — | 1.4E-5 to 1.6E-5 | cm/cm/℃ | Internal Method |
| < 170℃ | 8.7E-5 | cm/cm/℃ | Internal Method |
| > 170℃ | 2.5E-4 | cm/cm/℃ | Internal Method |
| Thermal conductivity coefficient | |||
| 100℃ | 0.25 | W/m/K | ASTM E1461 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | Internal Method | ||
| — | 2.9E+13 | ohms | Internal Method |
| — | 4.0E+12 | ohms | Internal Method |
| Volume resistivity | Internal Method | ||
| — | 2.6E+13 | ohms·cm | Internal Method |
| — | 3.3E+12 | ohms·cm | Internal Method |
| Dielectric strength | 39 | kV/mm | Internal Method |
| Dielectric constant | |||
| 1 MHz | 4.40 | Internal Method | |
| Dissipation factor | |||
| 1 MHz | 0.025 | Internal Method |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | V-0 | UL 94 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Expansion rate | |||
| 50 to 260 ℃ | 3.1 | % | Internal Method |
| T260 | 10.0 | min | Internal Method |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. x and y direction |
| 3. After Thermal Stress |
| 4. Y-axis |
| 5. Z-axis |
| 6. E24/125 |
| 7. C96/35/90 |
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