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PREPERM® L440
| Category: | PPE , Polyphenylene Ether |
| Manufacturer: | Premix Oy |
| Trademark: | PREPERM® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | Pp4XCk_PREPERM-L440.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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PREPERM® L440 is a special compound with elevated dielectric constants of 4.4. PREPERM® L440 is a special compound based on Premix proprietary PPE technology. Extremely low dissipation factor (0.0005) makes PREPERM® L440 an excellent material for high frequency applications. PREPERM® L440 offers stable dielectric constant over wide frequency and wide temperature range. PREPERM® retains its physical properties at very low (-78°C) temperatures. PREPERM® L440 can be injection moulded or extruded. Applications include structural parts for antennas in base stations, point to point, wlan, mobile phones etc. Devices made out of PREPERM® L440 can operate at very high frequencies as PREPERM® L440 offers stable performance even at 120 GHz. |
| General Information | |
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| Features |
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| Uses |
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| RoHS Compliance |
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| Forms |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Density | 1.54 | g/cm³ | |
| Melt Mass-Flow Rate (MFR) | ISO 1133 | ||
| 300°C/2.16 kg | 2.0 | g/10 min | |
| 300°C/5.0 kg | 6.0 | g/10 min | |
| Molding Shrinkage | 0.80 | % | ISO 294-4 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Stress | ISO 527-2 | ||
| Yield | 52.0 | MPa | |
| 4.00 mm | 46.0 | MPa | |
| Tensile Strain | ISO 527-2 | ||
| Yield | 8.0 | % | |
| Break, 4.00 mm | 30 | % | |
| Flexural Modulus (4.00 mm) | 2500 | MPa | ISO 178 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact Strength 1 | ISO 180 | ||
| -78°C | 12 | kJ/m² | |
| -20°C | 12 | kJ/m² | |
| 23°C | 20 | kJ/m² | |
| Unnotched Izod Impact Strength 2 | ISO 180 | ||
| -78°C | No Break | ||
| -20°C | No Break | ||
| 23°C | No Break |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Heat Deflection Temperature | |||
| 0.45 MPa, Unannealed | 180 | °C | ISO 75-2/Bf |
| 1.8 MPa, Unannealed | 158 | °C | ISO 75-2/Af |
| Vicat Softening Temperature | |||
| -- | 192 | °C | ISO 306/A50 |
| -- | 175 | °C | ISO 306/B50 |
| Electrical | Nominal Value | Test Method | |
|---|---|---|---|
| Dielectric Constant (1.00 GHz) | 4.40 | Internal Method | |
| Dissipation Factor (1.00 GHz) | 5.0E-4 | Internal Method |
| Flammability | Nominal Value | Test Method | |
|---|---|---|---|
| Flame Rating (4.00 mm) | V-1 | UL 94 |
| Injection | Nominal Value | Unit | |
|---|---|---|---|
| Drying Temperature | 120 to 140 | °C | |
| Drying Time | 2.0 to 4.0 | hr | |
| Processing (Melt) Temp | 290 to 310 | °C | |
| Mold Temperature | 80.0 to 140 | °C | |
| Injection Pressure | 60.0 to 80.0 | MPa | |
| Injection Rate | Moderate |
| Extrusion | Nominal Value | Unit | |
|---|---|---|---|
| Drying Temperature | 120 to 140 | °C | |
| Drying Time | 2.0 to 4.0 | hr | |
| Melt Temperature | 260 to 280 | °C | |
| Die Temperature | 260 to 300 | °C | |
| Take-Off Roll | 60.0 to 180 | °C |
| Note Message | |
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| 1 . | 4 mm thickness |
| 2 . | 4 mm thickness |
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