PEEK(Polyetheretherketone)is a kind of heat-resistant, high performance thermoplastic special engineering plastics. It has good mechanical properties and chemical resistance, abrasion resistance, and hydrolysis resistance properties etc; it has a light proportion and self-lubricating properties.
Advantages:
Mechanical Properties: PEEK is the plastic that strikes a balance between toughness and rigidity. Especially, it has an excellent fatigue resistance against alternating stress that is the most talented of all plastics, and it can be comparable with alloys.
Self-lubricating: PEEK has outstanding sliding characteristics in all plastics; it is suitable for stringent requirements for low coefficient of friction and resistance to friction used. Especially, the self-lubricating properties of PEEK will be better if it is modified by carbon fiber and graphite mixed in the proportion of each of them.
Chemical Resistance: PEEK has excellent chemical resistance. In ordinary chemicals, it can be dissolved or damaged only by concentrated sulfuric acid; its corrosion resistance is similar to those of steel and nickel.
Popular PEEK for CNC Machining:
1.PEEK-1000 This general purpose grade is unreinforced and offers the highest elongation and toughness of all PEEK grades. The newly available black PEEK 1000 is ideal for instrument components where aesthetics are important, as well as for seal components where ductility and inertness are important.
2.PEEK-HPV Carbon fiber reinforced with graphite and PTFE lubricants,our newest grade of PEEK offers the lowest coefficient of friction and the best machinability for all PEEK grades. Anexcellent combination of low friction,low wear,high LPV,low mating part wear and easy machining,make it ideal for aggressive service bearings.
3.PEEK-GF30 The addition of glass fibers significantly reduces the expansion rate and increases the flexural modulus of PEEK. This grade is ideal for structural applications that require improved strength, stiffness or stability,especially at temperatures above 300°F (150°C).
4. PEEK-CA30 The addition of carbon fibers enhances the compressive strength and stffness of PEEK, and dramatically lowers its expansion rate. It offers designers optimum wear resistance and load carrying capability in a PEEK-based product. This grade provides more thermal conductivity than unreinforced PEEK - increasing heat dissipation from bearing surfaces improving bearing life and capability.
