| About |
|---|
| DuPont™ Teflon ® FEP 9819FL is a specialty fluoroplastic resin available as a loosely compacted fluff. It is intended for use in special application processes in consultation with DuPont. Teflon ® FEP 9819FL and the other Teflon ® FEP (fluorinated ethylene propylene) copolymer resins combine the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene (PTFE). They have high melt strength and stability at recommended processing temperatures. Teflon ® FEP 9819FL is preferred for products that are not exposed to severe environmental stress in service. Properly processed products made from neat Teflon ® FEP 9819FL resin provide the superior properties typical of the fluoroplastic resins: retention of properties after service at 204°C (400°F), useful properties at -240°C (-400°F), excellent dielectric properties and chemical inertness to nearly all industrial chemicals and solvents. Molded products have moderate stiffness and high ultimate elongation. In a flame, products of Teflon ® FEP 9819FL resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and is added at a slow rate with very little smoke.&& |
| Product Description | |
|---|---|
| Supplier | Chemours |
| Generic | FEP |
| Material Status | Commercial: Active |
| Features | Good Electrical Properties,Good melt strength,Good Tensile Strength,Solvent resistance |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 2.15 | g/cm³ | ASTM D792 |
| Density | 2.15 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 372℃，5.0kg | 30 | g/10min | ASTM D2116 |
| 372℃，5.0kg | 30 | g/10min | ISO 12086 |
| Water absorption rate | |||
| 24hr | < 0.010 | % | ASTM D570 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 55 | ISO 868 | |
| Shaw’s D | 55 | ASTM D2240 | |
| tensile strength | |||
| Yield, 23 ℃ | 20.0 | MPa | ISO 12086 |
| Yield, 23 ℃ | 20.0 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 23 ℃ | 300 | % | ASTM D638 |
| Fracture, 23 ℃ | 300 | % | ISO 12086 |
| Bending modulus | |||
| 23℃ | 520 | MPa | ISO 178 |
| 23℃ | 520 | MPa | ASTM D790 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Melting temperature | 255 | ℃ | ASTM D4591 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric strength | |||
| 0.25 mm | 80 | kV/mm | ASTM D149 |
| 0.25 mm | 80 | kV/mm | IEC 60243-1 |
| Dielectric constant | |||
| 1 MHz | 2.03 | ASTM D150 | |
| Relative permittivity | |||
| 1 MHz | 2.03 | IEC 60250 | |
| Dissipation factor | |||
| 1 GHz | 7.0E-4 | IEC 60250 | |
| 1 GHz | 7.0E-4 | ASTM D2520 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Extreme oxygen index | > 95 | % | ASTM D2863 |
| Extreme oxygen index | > 95 | % | ISO 4589-2 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Critical Shear Rate（372℃） | 200 | sec^-1 | Internal Method |
| MIT flexural strength (8 mil film, 200.0 µ m) | 7.0E+3 | Cycles | ASTM D2176 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A (Short-Time) |
| 3. .25 mm film |
| 4. Short Time, .25 mm film |
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