PEEK (polyetheretherketone), as a benchmark material for high-performance engineering plastics, has performance advantages reflected in the following core dimensions:
1、 Special environmental adaptability
High temperature resistance performance
Long term use temperature up to 260 ℃, short-term tolerance up to 300 ℃ (such as engine components)
Glass transition temperature 143 ℃, maintaining high strength at high temperatures (bending strength 24MPa at 200 ℃)
Chemical stability
Resistant to all strong acids and bases except concentrated sulfuric acid, and resistant to organic solvent corrosion (such as semiconductor test boards coming into contact with chemicals)
Water absorption rate is only 0.5%, stable performance in humid environments
2、 Breakthrough in mechanical performance
Lightweight and High Strength
Density of 1.3g/cm ³ (1/3 of aluminum alloy), strength of 90MPa (carbon fiber reinforced type exceeding 170MPa)
5 times stronger than titanium alloy, used for aerospace weight reduction of 40%
Wear resistant and self-lubricating
Dry friction coefficient of 0.3, reduced to 0.1 after adding carbon fiber (bearing life extended by 3 times)
Gear noise reduction by 50%, robot joint friction loss reduced by 90%
3、 Biomedical characteristics
Biocompatibility
Certified by ISO10993, non cytotoxic, elastic modulus close to bone (to avoid stress shielding)
X-ray transparency (no artifacts in postoperative images), capable of high-pressure sterilization for 3000 cycles
Implant application
Skull repair material with strength exceeding titanium alloy, no discomfort caused by thermal conduction
The wear rate of orthopedic implants is only 0.01mm/year, and replacing metals reduces rejection reactions
4、 Comprehensive performance comparison
Performance indicators PEEK data comparison materials (such as aluminum alloy)
Density 1.3g/cm ³ 2.7g/cm ³
Tensile strength 90-100MPa 300MPa (but high weight)
Chemical corrosion resistance only soluble in concentrated sulfuric acid and prone to oxidation
Biocompatibility without risk of allergy/rejection of metal ion release
5、 Frontier application expansion
Humanoid robot: Tesla Optimus Gen2 joint reduces weight by 10kg, battery life increases by 15%
Semiconductor manufacturing: IC test board can withstand high temperature of 350 ℃ and reduce signal loss by 70%
New energy battery: The sealing component can withstand high pressure up to 50 bar and has a lifespan twice that of non-metallic components
Note: PEEK materials require further modification (such as adding carbon fiber/PTFE) to enhance their performance, but the cost is relatively high (about 5-8 times that of metals).
