| About |
|---|
| KEPSTAN™ is a high performance thermoplastic material, based on PolyEtherKetoneKetone (PEKK) highly stable chemical backbone. Its semi crystalline structure in solid state offers an outstanding combination of mechanical and thermal strength together with chemical and fire resistance. Among the KEPSTAN™ family, the 7000 Series benefits uniquely from PEKK crystalline capabilities while reducing significantly processing temperatures compared to the more crystalline 8000 Series. With a reduced melting temperature (Tm decreased by 25°C) and a Tg above 1 60°C, the KEPSTAN™ 7000 Series resins are highly enabling in the field of continuous fiber composites for structural applications. KEPSTAN™ 7000 Series includes a medium flow grade, KEPSTAN™ 7002, and a high flow grade, KEPSTAN™ 7003, both unfilled PEKK resins designed to meet the requirements of a broad range of melt processing technologies, including among others extrusion, injection molding, fiber impregnation, consolidation and composite forming technologies. KEPSTAN™ is available in pellet form and in powder form with different particle sizes. Standard packaging includes 20 kg boxes for pellets and 10 kg boxes for powders.&& |
| Product Description | |
|---|---|
| Supplier | Arkema |
| Generic | PEKK |
| Material Status | Commercial: Active |
| Features | High liquidity,Flame Characteristics,Hypocrystalline,Solvent resistance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.29 | g/cm³ | ISO 1183 |
| Melt Volume Rate | |||
| 380℃，1.2 kg | 12.0 | cm³/10min | |
| 380℃，5 kg | 70.0 | cm³/10min | |
| Water absorption rate | |||
| 23℃，24hr，2.00 mm | 0.20 | % | |
| Saturation, 23 ℃ | 0.50 | % | |
| Equilibrium, 23 ℃, 50% RH | 0.10 | % | |
| Equilibrium, 23 ℃, 50% RH, 2.00 mm | 0.010 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | |||
| 23 ℃, injection molding | 3800 | MPa | ISO 527-2/1BA/1 |
| tensile strength | |||
| Fracture, 23 ℃, injection molding | 70.0 to 105 | MPa | ISO 527-2/1BA/25 |
| Tensile strain | |||
| Fracture, 23 ℃, injection molding | 2.0 to 4.0 | % | ISO 527-2/1BA/25 |
| Compression modulus | |||
| 23℃ | 3800 | MPa | ISO 604/1 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| -30 ℃, injection molding | 4.0 | kJ/m² | |
| 23 ℃, injection molding | 4.5 | kJ/m² | |
| Charpy Unnotch Impact strength | |||
| -30 ℃, injection molding | 18 | kJ/m² | |
| 23 ℃, injection molding | 22 | kJ/m² |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 172 | ℃ | ISO 75-2/Af |
| Glass transition temperature | 162 | ℃ | |
| Melting temperature | |||
| DSC | 334 | ℃ | |
| Linear coefficient of thermal expansion | |||
| MD | |||
| -100 to 160 ℃ | 2.4E-5 | cm/cm/℃ | |
| 160 to 300 ℃ | 2.3E-4 | cm/cm/℃ | |
| specific heat | |||
| 23℃ | 1020 | J/kg/℃ |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+16 | ohms | ASTM D257 |
| Volume resistivity | |||
| 23℃ | 1.0E+16 | ohms·cm | ASTM D257 |
| Dielectric strength | |||
| 0.1 mm | 84 | kV/mm | IEC 60243-1 |
| Relative permittivity | |||
| 23℃，1 MHz | 2.60 | IEC 60250 | |
| Dissipation factor | |||
| 23℃，1 kHz | 7.0E-3 | IEC 60250 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 0.80 mm | V-0 | UL 94 | |
| Extreme oxygen index | 35 | % | ISO 4589-2 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Extrusion | Nominal value | Unit | Test method |
| Drying temperature | |||
| A | 150 | °C | |
| B | 120 | °C | |
| Drying time | |||
| A | 3.0 to 4.0 | hr | |
| B | 6.0 to 8.0 | hr | |
| Barrel rear temperature | 320 | °C | |
| Barrel middle temperature | 340 | °C | |
| Barrel front temperature | 350 | °C | |
| Nozzle temperature | 360 | °C | |
| Processing (melt) temperature | 340 to 360 | °C | |
| Mold temperature | 230 to 250 | °C | |
| Drying temperature | 150 | °C | |
| Drying time | 3.0 to 4.0 | hr | |
| Barrel 1 zone temperature | 290 | °C | |
| Barrel 2 zone temperature | 320 | °C | |
| Barrel 3 zone temperature | 350 | °C | |
| Barrel 4 zone temperature | 340 | °C | |
| Melt temperature | 340 to 360 | °C | |
| Nozzle temperature | 340 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 24hr |
| 3. 20°C/min |
| 4. 20°C/min, 2nd heating |
| 5. 1.6 mm |
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