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.
