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.
The 8000 Series offers the highest glass transition temperature and the highest degree of crystallinity, leading to the best tensile and compression strengths among both KEPSTAN® copolymers family and other PAEK resins.
KEPSTAN® 8000 Series includes a very low flow grade, KEPSTAN® 8001, a medium flow grade, KEPSTAN® 8002, and a high flow grade KEPSTAN® 8003, all unfilled pure PEKK resins designed to meet the requirements of a broad range of melt processing technologies, including among others extrusion of stock shapes, tubes, films, extrusion compression, compression molding, compounding, injection molding of thick or complex and thin-walled parts.
| Original Document | Technical Datasheet(English) | |||
| Solutions | Grade selection guide | |||
| Resin ID | PEKK | |||
| Features | High StrengthFlame RetardantChemical Resistance | |||
| Appearance | Pellets/GranulesGray ColorBeige | |||
| Processing | InjectionExtrusion | |||
| Technical Notes | Tensile ModulusComplex Viscosity-Angular FrequencyDynamic tensile modulus(E storage)-temperature | |||
| Physical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
|---|---|---|---|
Density/Specific Gravity | *** g/cm³ | ISO 1183 | |
Melt Volume Flow Rate(MVR) | |||
380°C/1.0 kg | *** cm³/10 min | ISO 1133 | |
Water Absorption | *** % | ISO 62 | 23°C, RH50%, 24 h, 2 mm |
Water Absorption | *** % | ISO 62 | 23°C, RH50%, equilibrium |
Water Absorption | *** % | ISO 62 | 23°C, immersion, 24 h, 2 mm |
Water Absorption | *** % | ISO 62 | 23°C, immersion, equilibrium |
| Mechanical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Tensile Modulus | *** Mpa | ISO 527-A12 | 23°C, 1 mm/min |
Tensile Strength | |||
Yield | *** Mpa | ISO 527-A12 | 125°C, 25 mm/m in |
Yield | *** Mpa | ISO 527-A12 | 175°C, 25 mm/min |
Yield | *** Mpa | ISO 527-A12 | 230°C, 25 mm/min |
Break | *** Mpa | ISO 527-A12 | 23°C, 25 mm/min |
Tensile Elongation | |||
Yield | *** % | ISO 527-A12 | 23°C, 25 mm/min |
Break | > *** % | ISO 527-A12 | 125°C and above, 25 mm/min |
Break | *** % | ISO 527-A12 | 23°C, 25 mm/min |
Flexural Modulus | *** Mpa | ISO 178-93 | |
Flexural Strength | |||
Break | *** Mpa | ISO 178-93 | |
Break | *** Mpa | ISO 178-93 | 125°C |
Break | *** Mpa | ISO 178-93 | 175°C |
Compressive Modulus | *** Mpa | ISO 604 | 23°C, 1 mm/min |
Compressive Strength | *** Mpa | ISO 604 | 23°C, 5 mm/min |
| Impact | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Charpy Notched Impact Strengh | |||
-30℃ (-22℉) | *** kJ/m² | ISO 179/1eA | |
23℃ (73℉) | *** kJ/m² | ISO 179/1eA | |
Charpy Unnotched Impact Strengh | |||
-30℃ (-22℉) | *** kJ/m² | ISO 179/1eU | 30% Break |
23℃ (73℉) | *** kJ/m² | ISO 179/1eU | 10% Break |
| Thermal | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Heat Deflection Temperature(HDT) | |||
0.45 Mpa (66 psi)（4.6kg/cm²） | *** °C | ISO 75/Bf | |
1.8 Mpa (264 psi)（18.6kg/cm²） | *** °C | ISO 75/Af | |
Specific Heat | *** J/g-°C | DSC | 23°C |
Coefficient of Linear Thermal Expansion | |||
- | *** E-6/K | DMA | Average, -100°C to Tg |
- | *** E-6/K | DMA | Average, Tg to 300°C |
Melt Temperature(Tm) | *** °C | DSC | 20°C/min, 2 nd heating |
Glass Transition Temperature | *** °C | DSC | 20°C/min |
| Flammability | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Flame Rating | |||
V-0 | *** mm | UL94 | |
Oxygen Index | *** % | ISO 4589 | 3.2 mm |
| Electrical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Volume Resistivity | *** Ohm-cm | ASTM D257 | 23°C |
Surface Resistivity | *** Ohm | ASTM D257 | 23°C |
Dielectric Constant(Permittivity) | |||
1MHz | *** - | IEC 60250 | 23°C |
Dissipation Factor | |||
1 kHz | *** E-4 | IEC 60250 | 23°C |
Dielectric Strength | *** kV/mm | IEC 60243-1 | 100 µm thickness |
The information presented on this datasheet was acquired by AjiEng.com from the producer of the material. AjiEng.com makes substantial efforts to assure the accuracy of this data. However, AjiEng.com assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.
