Thermoplastic PolyEtherEtherKetone Peek Review

Synthetics, Plastic Injection Molding Design and Manufacturing

PolyEtherEtherKetone or PEEK is high temperature thermoplastic that is very resistant to chemical and fatigue environments and has very good thermal stability. PEEK, is an excellent material for a large array of thermal plastic applications where combustion, thermal, and chemical performance is critical. Peek exhibits a high ability ability to retain flexural and tensile properties at very high temperatures 250"C (482"F) or more within steam, or high water pressure environments.Peek is inert to all common organic and inorganic liquids and como mn solvents. Peek can be manufactured as a composite or with fiberglass or carbon fiber reinforcements to enhance mechanical and thermal properties of the material. Peek is an excellent dielectric with low loss throughout high temperature and frequencies ranges. Additionally, good radiation resistance with the ability to absorb more than 1000 M rads of infrared radiation without a significant reduction in mechanical characteristics and PEEK has exceptional resistance to high exposure of gamma radiation. Other characteristics are:

• Outstanding wear and abrasion resistance.
• Low coefficient of friction
• High limiting PV properties.
• Low smoke and toxic gas emissions.(Out gassing or emitting of smoke and gas during combustion are among the lowest of any thermoplastic material.)
• Similar chemical and water resistance as PPS (PolyPhenylene Sulfide), however has greater high temperature resistance

PEEK has poor resistance to certain acids in concentrated form, such as; nitric, hydrobromic, hydrofluoric, sulfuric,oleum, hydrochloric, and other mineral acids PEEK does have good chemical resistance to phosphoric acid and organic acids (acetic, citric, oxalic, tartaric etc.), however resistance halogens depends on the PEEK composition and other environmental impacts.Applications:

• Automotive
• Marine
• Oil and petroleum environments
• Electronics
• Medical
• Aerospace
• General industrial

Materials specifications common PEEK materials: Density 1300 kg/m3
Young's modulus (E) 3700 MPa
Tensile strength (σt) 90 MPa
Elongation @ break 50%
notch test 55 kJ/m2
Glass temperature 130-150 °C and 260-290 ºC
melting point ~350 °C
Vicat B
heat transfer coefficient (λ) 0.25 W/m.K
linear expansion coefficient (α) 1.7 10-5 /K
Specific heat (c) - kJ/kg.K
Water absorption (ASTM) - NA

PEEK Chemical Composition

Related

• Advantages Custom Cast Urethane Urethanes may be cast with fiber or glass reinforcement material to enhance the load, flexure and EMI characteristics
• Cast Polyurethane Parts Design and Application Polyurethane may be cast into practically any shape, size or complex geometry desired
• Custom Molded Urethane Products Urethane is an excellent material which exhibits high abrasion resistance and can outperform other e nginereing materials
• Thermoplastic Peek Review PolyEtherEtherKetone or PEEK
• Polyurethane Sheet and Sheeting Application Polyurethane sheets and sheeting is an elastometric material available in many standard sizes
• Polyurethane Rollers Polyurethane Rollers used in applications requiring resistance to high temperatures, tear and abrasion resistance.
• Urethane Replacement Parts and Components Urethane has very good chemical resistance to most solvents, chemicals, aliphatic based oils, and greases.
• Urethane Sheet and Sheeting Application Standards associated with the definition of performance properties of Urethane cast sheet.
• Urethane Rollers Urethane rollers are typically manufactured using a cast or mold process over the desired bushing or core.