PEEK exhibits very superior comprehensive properties because it contains a large number of benzene ring structures in its molecule.
PEEK (polyether ether ketone) resin is a high-performance special thermoplastic material and one of the important varieties of commercial polyaryl ether ketone resins. At present, polyetheretherketone is widely used in petroleum, food processing, automobiles, aerospace and other fields due to its excellent electrical properties, mechanical properties, high temperature resistance, corrosion resistance, etc.
PEEK powder is ground from the coarse powder after PEEK polymerization. According to different grinding processes, powders of different sizes from 200 mesh to 800 mesh can be ground.
Mechanical properties
| Item | Test Standard or Instrument | Unit | PEEK5600P 100%PEEK |
| Tensile strength(23℃) | ISO527-2/1B/50 | MPa | 95 |
| Tensile modulus(23℃） | ISO527-2/1B/51 | GPa | 3.8 |
| Tensile elongation(23℃) | ISO527-2/1B/50 | % | 20 |
| Bending strength(23℃) | ISO 178 | MPa | 152 |
| Bending modulus(23℃) | ISO 179 | GPa | 3.5 |
| Compressive strength(23℃) | ISO 604 | MPa | 128 |
| Lzod impact strength( no gap) | ISO 180/U | KJ/m² | 72 |
Thermal properties
| Item | Test Standard or Instrument | Unit | PEEK5600P 100%PEEK |
| Melting point | DSC | ℃ | 343 |
| Distortion temperature | ISO 75-1/-2 | ℃ | 163 |
| Continuous using temperature | UL 74685 | ℃ | 260 |
| Coefficient of | ASTM D696 | ppm K -1 | 46 |
| Thermal expansion | |||
| Flammable level | UL 94 | / | V-0 |
| Thermal conductivity | ISO 22007 | W/（m·K） | 0.28 |
Electrical properties
| Item | Test Standard or Instrument | Unit | PEEK5600P 100%PEEK |
| Dielectric strength | IEC 60243-1 | KV/mm | 18 |
| Dielectric constant | IEC 60250 | – | 3.2 |
| Surface resistance | Ω | 10₁₃Ω | |
| Lossy medium | IEC 60251 | – | 0.004 |
Other properties
| Item | Test Standard or Instrument | Unit | PEEK5600P 100%PEEK |
| Color | – | Natural | |
| Density | ISO 1138 | g/cm³ | 1.3 |
| Water Abs. (25℃.24Hrs) | ISO 62 | % | 0.04 |
| Mould shrinking percentage（25-24℃） | 3mm,170℃, Flow direction | % | 1.2 |
| Perpendicular to flow direction | % | 1.5 | |
| Simeom Denis Poisson | ISO 527-2 | 0.4 | |
| Rockwell hardness | GB3398.2 | HRR | 118 |
| Friction coefficient | μ | 0.30 | |
| Melt flow index | ISO1133-2005 | g/10min | 10 |
PEEK Advantages
