PEEK is a high-temperature , high-performance specialty engineering thermoplastics . It has good mechanical properties and resistance to chemicals, abrasion -resistant properties , hydrolysis , etc. ; its light weight, selflubricating properties , due to the very good processing properties, can be filled with carbon fiber, such as molybdenum disulfide to further improve the lubricity and mechanical strength. PEEK plastic broad application space comes tohigh-tech industries in aviation, machinery electronics, chemical, automotive , etc., may be required for the manufacture of high mechanical parts such as gears, bearings , piston rings, support rings, seals ( letter ) , valves, wear rings.

Properties:

1 . Temperature

PEEK has a high glass transition temperature and melting point (334 °C), which is one of the reasons that it requires heat resistance can reliably use the application . Its load thermal deformation temperature up to 316 °C, continuous use temperature of 260 °C.

 2 Mechanical properties

PEEK is both toughness and rigidity and balance of plastics. Particularly its excellent resistance to alternating stress fatigue is the most outstanding of all plastics , can be comparable with the alloy material.

 3 self-lubricating

PEEK has outstanding sliding properties in all plastic , suitable for demanding low coefficient of friction and abrasion purposes. Especially carbon fiber, graphite certain percentage of each hybrid modified PEEK better self-lubricating properties .

 4 chemical resistance ( corrosion )

PEEK has excellent chemical resistance, in the usual chemicals that can dissolve or destroy it only concentrated sulfuric acid , and its resistance to corrosion and nickel steel similar.

 5 flame retardant

PEEK polymer is very stable , 1.45mm thick sample , without any flame retardant can achieve the highest standards .

 6 peel resistance

PEEK excellent peeling resistance , it can be made of wire or coated with a thin wire , and can be used in harsh conditions .

 7 fatigue resistance

PEEK has the best resistance to fatigue in all resin.

 8 radiation resistance

The ability of strong resistance to γ radiation over the best general-purpose polystyrene resins radiation 

resistance . You can still maintain γ radiation dose made up 1100Mrad good insulating ability when high performance wire .

 9 hydrolysis resistance

PEEK and its composites from chemical effects of water and high-pressure steam , products made of this 

material at high temperature and pressure water can still maintain excellent properties of continuous use

 

Properties of different materials PEEK rod

Item	Test Criteria  or Instrument	Pure PEEK	PEEK & 30% Glass fiber	PEEK & 30% Carbon fiber	PEEK & 30% (Glass fiber & Carbon fiber & PTFE )	Unit
Mechanical Properties
Density	ISO 1183	1.3	1.4	1.44	1.51	g/m3
Tensile strength	ISO 527-2/1B/50	100	155	220	134	MPa
Tensile elongation	ISO 527-2/1B/50	34	2	1.8	2.2	%
Bending strength	ISO178	163	212	298	186	%
Compressive strength	ASTM D695	118	215	240	150	Mpa
Rockwell scale	ASTM D785	99	103	107	102	-
Friction coefficient		0.30-0.38	0.38-0.46	0.28	0.18	-
Thermal Properties
Continuous use temperature	UL 7468	260	260	260	260	°C
Heat deflection temperature	ASTM D648	315	315	293	163	°C
Coefficient of thermal expansion	ASTM D695	4.7	2.2	1.5	2.2	°C
Fire Resistance	UL94	1.5	1.5	1.5	0.75	V-0@mm
Electrical properties
Dielectric strength	IEC 248					kV/mm
Dielectric constant	IEC 250					N/a
Surface Resistivity		1015	1015	3 x 106	5 x 106	Ω
Color	primary color Sallow