Main Products and Description
Polyether ether ketone (PEEK) is an aromatic crystalline thermoplastic polymer with a melting point of 343 ℃, possessing characteristics that rival those of polyimide (PI) and is known as a super heat-resistant thermoplastic resin. Its main properties are as follows:
High Temperature Performance: The glass transition temperature of PEEK polymers and compounds is typically 143°C, with a melting point of 340°C. Tests show that although the thermal deformation temperature of unreinforced pure resin is only 160℃ (HDT/B), when reinforced with glass fiber or carbon fiber, the thermal deformation temperature can reach 315℃, and continuous use temperature can reach 260℃.
Wear Resistance: PEEK provides excellent wear resistance under various pressures, temperatures, speeds, and relatively rough contact surfaces, comparable to polyimide materials.
Chemical Resistance: Even at high temperatures, PEEK polymers can resist most chemical environments very well.
Flammability, Smoke, and Toxic Gas Emission Levels: PEEK polymers are very stable, achieving UL94 V-0 flame retardant requirements without the need for any added flame retardants at a thickness of 1.45mm. The composition and inherent purity of this material result in minimal smoke and toxic gas production in fire environments.
Hydrolysis Resistance: PEEK polymers and compounds can withstand chemical degradation caused by water or high-pressure steam. Components made from these materials can operate continuously in water environments under high temperature and pressure while maintaining good mechanical properties. PEEK has a very low water absorption rate and can be used in pressurized hot water or steam at 300℃.
Fatigue Resistance: Polyether ether ketone resin is a plastic that balances toughness and rigidity. Its excellent fatigue resistance to alternating stress is outstanding among all plastics and comparable to alloy materials.
Self-Lubrication: Polyether ether ketone resin has outstanding sliding properties among all plastics, making it suitable for applications that require low friction coefficients and wear resistance. In particular, modified sliding grades with 10% each of carbon fiber, graphite, and polytetrafluoroethylene or 30% CF reinforced grades all exhibit excellent sliding characteristics.
Electrical Performance and Radiation Resistance: PEEK exhibits superior electrical performance, maintaining stability over a wide range of temperatures and frequencies, with low dielectric loss even at high frequencies, such as 1010 Hz remaining at 0.0033. At room temperature, the volume resistivity is 10^16 Ω·cm, and the breakdown voltage is 17kV/mm. It has a strong resistance to γ radiation, surpassing the radiation resistance of common resins like polyethylene. It can maintain good insulating properties in high-performance wires subjected to γ radiation doses up to 1100Mrad.
Peeling Resistance: PEEK resin has good peeling resistance, allowing for the production of very thin insulated wires or electromagnetic wires that can be used under harsh conditions.
