The following is a comprehensive analysis of the basic properties and applications of polyetheretherketone (PEEK), combined with industrial standards and technical practices:
1、 Basic performance
High temperature resistance
Melting point 343 ℃, long-term use temperature 260 ℃, short-term tolerance 300 ℃
Hot deformation temperature 316 ℃ (carbon fiber reinforced type)
Mechanical performance
Tensile strength 90-186MPa, elastic modulus 3.6GPa
The fatigue resistance is equivalent to that of alloys, and the performance is stable under cyclic loading
Chemical stability
Resistant to strong acids (excluding concentrated sulfuric acid), strong bases, and organic solvents, with excellent hydrolysis resistance
Resistant to fuel and steam (long-term stability at 200-250 ℃)
Other characteristics
Self lubrication (friction coefficient 0.01-0.2)
Flame retardancy (UL94 V-0 grade, halogen-free low smoke)
Biocompatibility (certified by ISO 10993)
2、 Core application areas
Aerospace
Replacing metal manufacturing for aircraft cabin doors and engine seals, reducing weight by 40%
Airbus A350 uses over 1000 PEEK components per aircraft
Medical Health
Orthopedic implants (spinal fusion devices, artificial joints)
Dental restorative materials (with a light transmittance of 40%, comparable to natural teeth)
New energy vehicles
Battery connectors, motor insulation components (capable of withstanding high voltage up to 50 bar)
Tesla Model Y battery pack sealing ring life increased by 5 times
Electronic and Electrical
Semiconductor wafer carrier (resistant to strong acids and alkalis)
5G high-frequency connector (low dielectric loss)
3、 Technological development trends
Lightweight demand driven
The application growth in the field of humanoid robots is expected to reach a domestic market size of 2.8 billion yuan by 2027
Carbon fiber reinforced PEEK has a specific strength 8 times that of aluminum alloy
The process of localization is accelerating
Wanrun Corporation and other enterprises are promoting the validation of PEEK pilot products
Ningbo Huaxiang Layout PEEK Material Research and Development
Note: PEEK related standards such as GB/T 41873-2022 have clear regulations on resin flowability, intrinsic viscosity, and other indicators.
