The Kimya PEKK-SC 3D filament belongs to the polyaryletherketone family. Polyetherketoneketone (PEKK) is a semi-crystalline thermoplastic polymer. PEKK-SC is PEKK in semi-crystalline form, imparting it with increased heat resistance. It is therefore resistant to high temperatures, abrasion and chemical products. Manufactured from KEPSTAN® Arkema, PEKK has excellent mechanical properties. Manufacturers use it to produce components exposed to acids and hydrocarbons, such as fuel and lubricants. It is compatible with the smoke/fire standard EN 45 545 – essential in the railway sector. The Kimya PEKK-SC 3D filament has the following properties:
- Semi-crystalline structure
- Excellent mechanical properties
- Heat resistance (up to 260°C)
- Railway fire and smoke standard EN45545
- Aerospace FAR 25.853 Standard
- Flame retardant – eligible to UL94 V0
- Complies with the RoHS and REACH standard
- Product Dimensions: 20.7 × 20.5 × 6 cm; 0.55 kg
FILAMENT PROPERTIES
| PROPERTIES | TEST METHODS | VALUES |
| Diameter | INS-6712 | 1.75 ± 0.1 mm
2.85 ± 0.1 mm |
| Density | ISO 1183-1 | 1.27 g/cm3 |
| Moisture rate | INS-6711 | < 1 % |
| Melt flow index (MFI) | ISO 1133-1 (@380°C – 5 kg) | 35 g/10min |
| Glass transition temperature (Tg) | ISO 11357-1 DSC (10°C/min - 20-410°C) | 161 °C |
| Heat distortion temperature (HDT) (1.8 MPa) | ISO 75f | 172°C |
| Melting Temperature (Tm) | ISO 11357-1 DSC (10°C/min – 20-410°C) | 332 °C |
PRINT PARAMETERS AND SPECIMENS DIMENSIONS
| PRINTING DIRECTION | XZ | ZX |
| Infill Angle | 45°/-45° | 45°/-45° |
PRINTED SPECIMENS PROPERTIES
| | PROPERTIES | TEST METHODS | XZ | ZX |
| ELECTRICAL PROPERTIES | Dielectric strength | IEC 60243-1 (100µm) | 84 kV/mm | 84 KV/mm |
| Relative permittivity | IEC 60250 (1 MHz) | 2.6 | 2.6 |
| Loss tangent | IEC 60250 (1 kHz) | 0.007 | 0.007 |
| Surface resistivity | ASTM D257 | 1016 Ohms/m² | 1016 Ohms/m² |
| Volume resistivity | ASTM D257 | 1016 Ohms/cm | 1016 Ohms/cm |
| MECHANICAL PROPERTIES | Tensile modulus | ISO 527-2/1A/50 | 2,448 MPa | 2,784 MPa |
| Tensile Strength | ISO 527-2/1A/50 | 64.1 MPa | 32.4 MPa |
| Tensile strain at strength | ISO 527-2/1A/50 | 4.5 % | 1.4 % |
| Tensile Stress at Break | ISO 527-2/1A/50 | 64.1 MPa | 32.4 MPa |
| Tensile strain at break | ISO 527-2/1A/50 | 4.5 % | 1.4 % |
| Flexural modulus | ISO 178 | 1,918 MPa | 1,705 MPa |
| Flexural strength* | ISO 178 | | 62.9 % |
| Flexural stress at conventional deflection (3,5% strain)* | ISO 178 | 79.3 MPa | 61.6 MPa |
| Flexural stress at break | ISO 178 | | 62.9 MPa |
| Flexural strain at flexural strength | ISO 178 | | 3.8 % |
| Charpy impact resistance | ISO 179-1/1eA | 5.35 kJ/m² | 1.9 kJ/m² |
| Note 1 | *According to ISO 178, end of the test at 5% deformation even if there is no specimen break. |
| Note 2 | The data should be considered as indicative values - Properties can be influenced by production conditions. |