PEEK Raw Materials Property

PEEK (polyether ether ketone) is a new type of semi-crystalline aromatic thermoplastic engineering plastics, which was successfully developed by Imperial Chemical (ICI) in the late 1970s. The material possesses high levels of heat, radiation and corrosion resistance, as well as excellent dimensional stability and electrical properties, and outstanding processability, among many other advantages. As a result, PEEK is recognized as one of the world's highest-performance thermoplastic materials and is widely used in the defense and military industries, the aerospace industry, the electronics and information industry, energy development, processing and utilization, automotive manufacturing, home appliance production, and medical and health care."

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PEEK Raw Materials & Modification Type

Pure resin PEEK

High toughness, fatigue resistance, insulation.According to the product specifications and processing methods to choose the appropriate mobility of the grade

Glass Fiber Filled PEEK

Impact resistance, temperature resistance, high strength, cost reduction
Up to 60% glass fiber filler.

Ultra-fine powder PEEK

Suitable processes: composite modification, pre-preg, spraying

Carbon Fiber Filled PEEK

High strength, temperature and abrasion resistance
Carbon fiber filling rate up to 50%.
Conventional CF30 PEEK tensile strength is 240~260Mpa, high strength CF30 PEEK tensile strength can reach 300Mpa.

Wear-resistant PEEK

Wear-resistant working conditions are complex, high pressure and high speed, high pressure and low speed, low pressure and high speed, lubricating media, relative wear materials, wear amount, working temperature

Coase poder peek

Suitable process: compound modification.

PEEK RAW MATERIALS PROPERTIES DATA

Mechanical Behavior
Item	Test Standard or Instrument	Unit	Nature PEEK	Glass fiber PEEK	Carbon fiber PEEK	Wear-resistant PEEK
Tensile strength(23℃)	ISO527	MPa	100	155	220	134
Bending strength(23℃)	ISO 178	MPa	163	212	298	186
Compressive strength(23℃)	ISO 604	MPa	118	215	240	150
Lzod impact strength( no gap)	ISO 180/IU	kJ/m²	No Crack	51	46	32

Thermal Performance
Item	Test Standard or Instrument	Unit	Nature PEEK	Glass fiber PEEK	Carbon fiber PEEK	Wear-resistant PEEK
Melting point	DSC 11357	℃	343	343	343	343
Distortion temperature	ISO 75-1/2	℃	163	315	315	293
Continuous using temperature	UL 74685	℃	260	260	260	260
Coefficient of thermal expansion	ASTM D696	10 -5℃	4.7	2.2	1.5	2.2
Flammable level	UL 94	V-0@mm	1.5	1.5	1.5	0.75

Electrical Performance
Item	Test Standard or Instrument	Unit	ARKPEEK-1000	ARKPEEK-GF30	ARKPEEK-CF30	ARKPEEK-MOD
Dielectric strength	IEC 60243-1	kV/mm	18	19
Dielectric constant	IEC60250	-	3.2	3.3
Surface resistivity		Ω	10 ¹⁵	10 ¹⁵	3*10 ⁶	5*10 ⁶

Other Performance
Item	Test Standard or Instrument	Unit	Nature PEEK	Glass fiber PEEK	Carbon fiber PEEK	Wear-resistant PEEK
Density	ISO 1138	g/cm³	1.3±0.01	1.5±0.01	1.4±0.01	1.43±0.01
Rockwell hardness	ISO 2039	HRR	118	119	121	108
Friction coefficient		μ	0.30-0.38	0.38-0.46	0.28	0.18
Water Abs. (25℃.24Hrs)	ISO 62	%	0.5	0.11	0.06	0.06
Mould shrinking percentage	3mm,170℃, Flow direction	%	1.2	0.4	0.1	0.3
Mould shrinking percentage	Perpendicular to flow direction	%	1.5	0.8	0.5	0.5

PEEK Raw Materials Processing Mode

Injection moulding

Extrusion

Compression moulding

Pure Resin, Compound Modified Pellets

Most pure resins, composite modified pellets are suitable for the production

Pure Resin, Compound Modified Pellets

PEEK extrusion material, commonly used in the production of film, tubing, sheet and monofilament production

Finely divided, ultrafine powder

Compression molded parts are typically more crystalline, have higher modulus and tensile strength, are harder, and have lower ductility.

PEEK Carbon Fiber Granule

Carbon fiber modified PEEK (polyetheretherketone) is a high-performance peek carbon fiber composite material that adds thermoplastic carbon fiber to PEEK resin. The addition of carbon fiber significantly improves the mechanical properties of composite materials, making it an ideal choice for manufacturing high-demand engineering parts such as ABS pump rotors, high-speed impellers, and clutch forks.

PEEK Carbon Fiber Properties

1.High specific strength: The specific strength of carbon fiber modified PEEK far exceeds that of aluminum alloy. Specifically, the tensile strength of ordinary aluminum alloys (such as 7075 series) is about 530 MPa, while the tensile strength of carbon fiber reinforced PEEK can reach 1500 MPa. or higher. This means that the specific strength of carbon fiber modified PEEK is at least three times that of aluminum alloy. The introduction of carbon fiber has greatly improved the load-bearing capacity of composite materials while maintaining the advantage of being lightweight, which is particularly important for aerospace, automotive and other fields.

2.Wear resistance: Compared with unmodified PEEK, peek carbon fiber prepreg shows significantly improved wear resistance, and the wear resistance can be increased by more than 50%. This improvement reduces the rate of wear over long periods of use, extending the life of the part.

3.Corrosion resistance: PEEK itself is a high-performance engineering plastic known to have excellent chemical resistance. It can withstand a wide range of chemicals, including most acids, bases and solvents. For example, according to literature reports, when 30% carbon fiber PEEK is contacted with concentrated sulfuric acid (98%) at room temperature, its mass loss is very small, and the annual loss rate may be less than 0.1%. This means that PEEK remains stable in extremely harsh chemical environments without significant degradation due to chemical corrosion.

4.Formula proportion range and adjustment purpose:
The proportion of carbon fiber in composite materials usually ranges from 5% to 60%, and different proportions are suitable for different application requirements:
Proportion within 30%: mainly used to improve the strength of the material. Within this proportion range, increasing the proportion of carbon fiber can effectively increase the tensile and compressive strength of the material.
Ratio above 30%: The focus shifts to increasing the modulus of the material. Although the carbon fiber content exceeding 30% no longer significantly increases the strength of the material, it can significantly increase the stiffness of the material and is suitable for applications requiring high modulus.

5.The effect of adjusting the proportion:
When the addition amount is less than 30%, the strength and modulus of the material are positively related to the addition ratio, that is, as the carbon fiber content increases, the strength and stiffness of the material also increase.
When the content exceeds 30%, the strength improvement effect of continuing to increase the carbon fiber content is weakened, but the modulus (i.e. stiffness) of the material will still increase. This is critical for designing parts that require specific stiffness rather than extreme strength.

PEEK Raw Materials Property

High Temperature Performance

Low Temperature

Radiation Resistance

High Strength

Fatigue resistance

Creep resistance

Wear resistance:

Chemical Resistance

Electrical properties

Thermal stability

Excellent biocompatibility

Combustion property

Low Density

PEEK Raw Materials & Modification Type

Pure resin PEEK

Glass Fiber Filled PEEK

Ultra-fine powder PEEK

Carbon Fiber Filled PEEK

Wear-resistant PEEK

Coase poder peek

PEEK RAW MATERIALS PROPERTIES DATA

PEEK Raw Materials Processing Mode

Pure Resin, Compound Modified Pellets

Pure Resin, Compound Modified Pellets

Finely divided, ultrafine powder

PEEK Carbon Fiber Granule

PEEK Carbon Fiber Properties

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