PEEK (polyetheretherketone), as a high-performance special engineering plastic, has the following comprehensive properties and multi field applications:
1、 Core performance characteristics
High temperature resistance
Long term use temperature is 260 ℃, short-term tolerance is 300 ℃, and the load heat deformation temperature reaches 316 ℃.
Mechanical properties
Tensile strength 90~100 MPa, bending strength>170 MPa; After carbon fiber reinforcement, the strength increases by 50% and the rigidity is higher.
Wear resistant and self-lubricating
The friction coefficient is as low as that of metal lubrication, and the wear resistance is 5 times that of copper/iron, making it suitable for high-frequency moving parts.
Chemical stability
Acid and alkali resistant, organic solvents (except concentrated sulfuric acid), excellent hydrolysis resistance under high temperature and high pressure.
Other characteristics
Flame retardancy reaches UL94-V level (without additives);
Biocompatibility is determined by the implant standard (ASTM F2026);
Transparent to X-rays, convenient for medical imaging monitoring.
2、 Medical field applications
Implant repair
Skull repair plate (hardness close to human bone, no thermal conductivity, avoiding temperature sensitivity);
Zygomatic/mandibular reshaping, nasal base filling (personalized design with natural transition);
Spinal fusion device, bone plate (elastic modulus close to bone tissue).
Medical devices
Surgical instruments and dental abutments (capable of repeated sterilization under high temperature and high pressure);
Implantable body fluid pump, neural stimulation system 9.
3、 Industrial manufacturing applications
Aerospace
Aircraft components (bolts, nuts), cargo hold drainage pipes (flame retardant to reduce fire risk);
Satellite components, engine bearings (made of carbon fiber reinforced high-strength superaluminum alloy).
Automobile manufacturing
Transmission sealing ring and brake bearing (wear-resistant and extended maintenance cycle);
Turbine rotor (power assisted braking system), window shaking motor shaft sleeve.
Industrial equipment
Gears and bearings (self-lubricating to reduce energy consumption);
Chemical pump valve sealing ring (resistant to strong acid corrosion, extended service life).
4. Performance Enhancement Direction
Modification technology: Carbon fiber/PTFE/ceramic filling enhances wear resistance and dimensional stability;
Lightweight advantage: With a density of only 15% of steel, it can replace metal and achieve a weight reduction of 40% to 60%.
Limitations and Precautions
The processing cost is higher than that of ordinary engineering plastics;
Temperature measurement of polished metal surfaces requires calibration of emissivity (strict biocompatibility verification is required for medical implants).
