AKROTEK® PEEK and PAEK – Best performance in plastic · AKROTEK® PEEK and PAEK – Best...

AKROTEK® PEEK and PAEK – Best performance in plastic

AKRO-PLASTIC GmbH Member of the Feddersen Group

AKROTEK® PEEK and PAEK – peak performance in plastics

With AKROTEK® PEEK and AKRO-TEK® PAEK, AKRO-PLASTIC GmbH are breaking new ground to expand and upgrade their high-performance compounds. As one of the leading compounders for polyamides (PA), polyphthalamides (PPA) and poly-ketones (PK), we have the skills and expertise needed to provide tailor-made solutions to our customers in the area of high-performance poly-mers.

Alongside conventional glass-fibre and Carbon-fibre filled compounds, tribologically modified grades are now available. Our primary goal is always to develop innovative pro-ducts. To achieve this, we some-times pursue unconventional paths in partnership with our customers.

AKROTEK® PEEK exhibits several out-standing characteristic properties:• high continuous operating

temperature (above 342 °C)• excellent room-temperature

properties• very good chemical resistance• inherent V0 to UL94• good radiation resistance• excellent hydrolysis resistance• extremely good impact strength• minimal creep• extremely low outgassing rate

AKRO-PLASTIC: Think polyamide and beyond.

AKRO-PLASTIC GmbH Member of the Feddersen Group

Typical values for natural color material at 23° C

Test specification

Testmethod Unit

PEEK natural

(4447)

PEEK GF 30 natural

(5047)

PEEK GF 40 natural

(5068)

PEEK GF 50 natural

(5100)

PEEK GF 50 9 natural

(5183)


(5184)

PEEK CF 30 black (5049)

PEEK CF 40 black(5099)

PEEK CF 40 9 black (5182)

PEEK TM natural

(5069)

Mechanical properties d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond.

Tensile modulus 1 mm/min ISO 527-1/2 MPa 3,700 11,500 11,200 15,000 19,000 19,000 23,000 21,700 25,500 25,000 34,500 31,500 3,500

Tensile stress at break/Yield stress1 5 mm/min ISO 527-1/2 MPa /100 180 162 200 210 210 210 180 235 228 245 235 /75

Elongation at break 5 mm/min ISO 527-1/2 % >25 2.5 2.1 2.2 1.8 1.8 1.5 1.1 1.5 1.3 1.0 1.1 >20

Flexural modulus 2 mm/min ISO 178 MPa 3,800 11,100 14,500 19,200 19,000 23,600 23,000 33,000 30,000 3,500

Flexural stress 2 mm/min ISO 178 MPa 155 265 295 335 320 325 345 365 345 125

Flexural strain at break 2 mm/min ISO 178 % 2.8 2.4 2.0 2.0 1.7 1.8 1.3 1.4

Charpy impact strength 23 °C ISO 179-1/1eU kJ/m² n.b. 62 52 63 65 60 50 35 42 38 40 36 105

Charpy notched impact strength 23 °C ISO 179-1/1eA kJ/m² 6 10 9 11 13 10 10 8 6 6 6 5 6

Thermical properties d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m. d.a.m.

Melting point DSC, 10 K/min ISO 11357-1 °C 342 342 342 342 342 342 342 342 342 342

Heat distortion temperature, HDT/A 1.8 MPa ISO 75-1/2 °C >280 >280 >280 >280 >280 >280 >280 >280 150

Heat distortion temperature, HDT/C 8 MPa ISO 75-1/2 °C 175 220 245 260 275 230 250 260 140

General Properties

Density 23 °C ISO 1183 g/cm³ 1.29 1.50 1.60 1.72 1.73 1.85 1.39 1.45 1.44 1.40

Mineral/reinforcement content ISO 1172 % 0 30 40 50 50 60 30 40 40 0

Moisture absorption 70 °C/62 % r.h. ISO 1110 % 0.18 0.12 0.22

Processing

Flowability Flow spiral2 AKRO mm 630 480 680

2


Test specification

Testmethod Unit

PEEK natural

(4447)

PEEK GF 30 natural

(5047)

PEEK GF 40 natural

(5068)

PEEK GF 50 natural

(5100)


(5183)


(5184)




PEEK TM natural

(5069)














General Properties

Density 23 °C ISO 1183 g/cm³ 1.29 1.50 1.60 1.72 1.73 1.85 1.39 1.45 1.44 1.40



Processing


AKROTEK® PEEK

“cond.” test values = conditioned, measured on test specimens stored according to ISO 1110 “d.a.m.” = dry as moulded test values = residual moisture content < 0.10 %n.b. = not broken

3


Test specification

Testmethod Unit

PEEK natural

(4447)

PEEK GF 30 natural

(5047)

PEEK GF 40 natural

(5068)

PEEK GF 50 natural

(5100)


(5183)


(5184)




PEEK TM natural

(5069)














General Properties

Density 23 °C ISO 1183 g/cm³ 1.29 1.50 1.60 1.72 1.73 1.85 1.39 1.45 1.44 1.40



Processing


AKROTEK® PEEK

1 = yield stress and elongation at break: test speed 50 mm/min for non-reinforced compounds2 = mould temperature: 195 °C, melt temperature: 385 °C, injection pressure: 2,000 bar, cross section of flow spiral: 7 mm x 3.5 mm


Test specification

Testmethod

Mechanical properties

Tensile modulus 1 mm/min ISO 527-1/2

Tensile stress at break/Yield stress1 5 mm/min ISO 527-1/2

Elongation at break 5 mm/min ISO 527-1/2

Flexural modulus 2 mm/min ISO 178

Flexural stress 2 mm/min ISO 178

Flexural strain at break 2 mm/min ISO 178

Charpy impact strength 23 °C ISO 179-1/1eU

Charpy notched impact strength 23 °C ISO 179-1/1eA

Thermical properties

Melting point DSC, 10 K/min ISO 11357-1

Heat distortion temperature, HDT/A 1.8 MPa ISO 75-1/2

Heat distortion temperature, HDT/C 8 MPa ISO 75-1/2

General Properties

Density 23 °C ISO 1183

Mineral/reinforcement content ISO 1172

Moisture absorption 70 °C/62 % r.h. ISO 1110

Processing

Flowability Flow spiral2 AKRO

4

AKROTEK® PEEK und PAEK

“cond.” test values = conditioned, measured on test specimens stored according to ISO 1110 “d.a.m.” = dry as moulded test values = residual moisture content < 0.10 %

UnitPEEK TM

black (5051)

PEEK CF 10 TM black (5050)

PAEK CF 30 black (5216)

PAEK CF 30 TM black (5217)

PAEK CF 30 9 black (5263)

d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond.

MPa 6,000 13,500 25,000 24,600 27,000

MPa 75 155 250 230 255

% 2.2 2.0 1.4 1.3 1.3

MPa 6,000 13,000 24,000 23,500 25,000

MPa 135 235 365 335 365

% 4.0 2.4 1.8 1.7 1.6

kJ/m² 35 35 40 38 42

kJ/m² 3 4 5 5 5

d.a.m. d.a.m. d.a.m. d.a.m. d.a.m.

°C 342 342 340 340 369

°C >280 >280 >280

°C 145 175 195 205

g/cm³ 1.46 1.44 1.40 1.41 1.41

% 0 10 30 30 30

%

mm 720


Test specification

Testmethod

Mechanical properties

Tensile modulus 1 mm/min ISO 527-1/2

Tensile stress at break/Yield stress1 5 mm/min ISO 527-1/2

Elongation at break 5 mm/min ISO 527-1/2

Flexural modulus 2 mm/min ISO 178

Flexural stress 2 mm/min ISO 178

Flexural strain at break 2 mm/min ISO 178

Charpy impact strength 23 °C ISO 179-1/1eU

Charpy notched impact strength 23 °C ISO 179-1/1eA

Thermical properties

Melting point DSC, 10 K/min ISO 11357-1

Heat distortion temperature, HDT/A 1.8 MPa ISO 75-1/2

Heat distortion temperature, HDT/C 8 MPa ISO 75-1/2

General Properties

Density 23 °C ISO 1183

Mineral/reinforcement content ISO 1172

Moisture absorption 70 °C/62 % r.h. ISO 1110

Processing

Flowability Flow spiral2 AKRO

5

Product characterisationAKROTEK® PEEK and AKROTEK® PAEK are used whenever several unfavourable general conditions are present, such as extreme operating temperatures, contact with aggres-sive substances, unfavourable wear and friction situations, etc.

PEEK (polyetheretherketone) be-longs to the PAEK (polyaryletherke-tone) group. PAEK plastics are semi-crystalline polymers whose TM (mel-ting point) and TG (glass transition temperature) are determined by the number of ketone groups (see table opposite).

AKROTEK® PEEK belongs to the group of high-temperature poly-mers. Plastics which, due to their property profile, can be used conti-nuously at ambient temperatures of over 150 °C are classified as high-temperature polymers. Table 1 shows a comparison of continuous operating temperatures of various plastics. As is evident, AKROTEK® PEEK ranks significantly above others, with a temperature of up to 340 °C.

AKROTEK® PEEK and AKROTEK® PAEK compounds feature several striking properties. The mechanical values, measured at higher tempe-ratures, demonstrate the many dif-ferent possible uses of our com-pounds. Our high-fill glass- and car-bon-fibre compounds provide ex-cellent performance in the tensile and flexural moduli. Figure 2 shows that as with other compounds, strength depends greatly on the temperature.

AKROTEK® PEEK

Polymer Keton content % TG °C TM °C

PEEEK 25 129 324

PEEK 33 141 335

PEK 50 152 365

PEKK 67 165 391

Classification of PAEK grades

O O C

O

n

Source: Chemgapedia

UnitPEEK TM

black (5051)

PEEK CF 10 TM black (5050)


PAEK CF 30 TM black (5217)

PAEK CF 30 9 black (5263)

d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond. d.a.m. cond.

MPa 6,000 13,500 25,000 24,600 27,000

MPa 75 155 250 230 255

% 2.2 2.0 1.4 1.3 1.3

MPa 6,000 13,000 24,000 23,500 25,000

MPa 135 235 365 335 365

% 4.0 2.4 1.8 1.7 1.6

kJ/m² 35 35 40 38 42

kJ/m² 3 4 5 5 5

d.a.m. d.a.m. d.a.m. d.a.m. d.a.m.

°C 342 342 340 340 369

°C >280 >280 >280

°C 145 175 195 205

g/cm³ 1.46 1.44 1.40 1.41 1.41

% 0 10 30 30 30

%

mm 720

Tens

ile st

ress

at b

reak

[MPa

]

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Stress strain diagram for different temperatures (Fig. 2)

Strain [%]

250

200

150

100

50

0

Continuous operating temperature (Fig. 1)

Tem

pera

ture

[°C]

350

300

250

200

150

100

50

0AKROTEK® PEEK AKROMID® C

GF 30 XTCAKROMID® T AKROMID® A

PEEK CF 30 at 23 °C PEEK CF 30 at 125 °C PEEK CF 30 at 200 °C PEEK GF 50 at 23 °C PEEK GF 50 at 125 °C PEEK GF 50 at 200 °C PEEK GF 30 natural at 23 °C PEEK GF 30 natural at 125 °C PEEK GF 30 natural at 200 °C

6

0 300 600 900 1,200 1,500

Low moisture absorption in glass-fibre-reinforced PEEK compared with A3 GF 30 1 black (see Fig. 3) ensures a high degree of dimensio-nal stability.

During extended heat ageing, AKROTEK® PEEK and AKROTEK®PAEK compounds provide consis-tent performance figures (see Fig. 4). The heat distortion temperature, measured according to ISO 75 HDT, is over 300°C at loads of 1.8 MPa.

The tensile modulus diminishes only slightly as a result of conditioning (see Fig. 5). This constant behaviour of AKROTEK® PEEK and PAEK grades is a great advantage for component design.

AKROTEK® PEEK and AKROTEK® PAEK compounds provide extremely good resistance to a number of critical chemical compounds across a broad temperature range. AKROTEK® PEEK and AKROTEK® PAEK compounds have excellent barrier properties against liquids and gases. Their hy-drolysis resistance is excellent, al-lowing for frequent contact with water vapour.

Product characterisation

Tens

ile s

tren

gth

[%]

Change in tensile strength during exposure time at 260 °C (Fig. 4)

Exposure time [h]

145

135

125

115

105

95

Tensile modulus (Fig. 5)

Tens

ile m

odul

us [M

Pa]

PEEK GF 30 PEEK GF 60 9 PEEK CF 30 natural (5047) natural (5184) black (5049)

30,000

25,000

20,000

15,000

10,000

5,000

0

d.a.m. conditioned

PEEK CF 30 black (5049) at 260 °C PEEK GF 40 natural (5068) at 260 °C PEEK GF 30 natural (5047) at 260 °C PEEK GF 30 natural (5047) at 150°C

Moisture absorption at 70 °C and 62 % rel. humidity (Fig. 3)

Moi

stur

e ab

sorp

tion

�%�

0 50 100 150 200 250 300 350 400 450 500

Exposure time [h]

2.0

1.5

1.0

0.5

0

A3 GF 30 1 black PK-HM GF 30 natural (4709) PEEK GF 30 natural (5047) PEEK GF 60 9 natural (5184)

7

Processing recommendationsAKROTEK® PEEK and AKROTEK® PAEK can be processed on commer-cially available injection moulding and extrusion machines. A heating system designed for temperatures up to 450 °C is required to achieve optimal processing results. The mould tempering should enable mould surface temperatures up to

190 °C. This ensures an optimal de-gree of crystallinity.

The flow rates achieved thanks to the favourable filler behaviour give development engineers and desig-ners a great deal of freedom when designing components (see Fig. 6), eliminating time-consuming, expen-

sive processing steps and permitting significant weight savings. Alongside performance, it was important for product developers at AKRO-PLASTIC to enable excellent material working properties using typical methods of the plastics-processing industry (such as injection moulding, extru-sion and film production).

Phold

Pback

τ< (-40) °C

θ5 θ4 θ3 θ2 θ1 θ6

The specified values are for reference values. For increasing filling contents the higher values should be used.For drying, we recommend using only dry air or a vacuum dryer. Processing moisture levels is 0.02% are recommended.The drying time of freshly-opened bags is up to 4 h at 150 °C. It is recommended to use opened bags completely.Material processed from silo or boxes requires a minimum drying time of 4 h.

Injection moulding AKROTEK® PEEK GF AKROTEK® PEEK CF AKROTEK® PAEK CFFlange θ1 60 – 80 °C 60 – 80 °C 60 – 80 °C

Sector 1 – Sector 4 θ2 365 – 385°C 370 – 390 °C 390 – 410 °C

Nozzle θ3 400 °C 410 °C 410 °C

Melt temperature θ4 370 – 400 °C 380 – 400 °C 390 – 410 °C

Mould temperaturee θ5 160 – 200 °C 180 – 200 °C 180 – 210 °C

Drying θ6 150 °C, 3 h 150 °C, 3 h 150 °C, 4 h

Back pressure, spec. Pback 500 – 1,000 bar 500 – 1,000 bar 500 – 1,000 bar

ExtrusionFlange 60 – 80 °C

Extruder sections 370 – 390 °C

Melt temperature 380 – 400 °C

Drying 150 °C, 3 h

Flow spiral �mm�

0 200 400 600 800

Flow length (Fig.6)



PEEK GF 60 9 natural (5184)

PEEK GF 40 natural (5068)

8

Processing recommendations

Disclaimer: All specifications and information given in this brochure are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY® and AKROTEK® are registered trademarks of the Feddersen Group.

ApplicationsThe combination of high impact strength, tensile strength and flexu-ral strength in high-fill glass- and car-bon-fibre compounds allows for use in a broad range of applications. Par-ticularly in applications where the use of metals would not be optimal or where weight reduction is neces-sary, AKROTEK® PEEK and AKRO-TEK® PAEK compounds may be the right alternative.

AKROTEK® PEEK and AKROTEK® PAEK compounds, which are modi-fied with appropriate additives such as PTFE, MoS₂, and carbon and ara-mide fibres, are used in many appli-cations subject to increased wear and friction problems. The com-pounds can be modified to suit spe-cific requirements profiles.

Application areasAviation• Interior trim• Seat components• Fasteners

Automotive industry• Gearbox components• Clutch components • Chassis components

Renewable energy• Heat pumps• Pipe couplings• Hose connectors Industry• Pump components• Compressor components• Sealing rings• Transport systems

Electric/Electronic• Cable coatings• Contact strips• Plug-in connectors

Medicine• Orthopaedic accessories• Laboratory equipment

Bearing segments in wind power stations

Impellers in turbochargers

Friction components in gearbox systems

9

Medium Resistance at 23 °C Resistance at 100 °C

1,1,1-trichlorethane very good

Acetone very good very good

Ammonia very good very good

Aromatic solvents good good

Bases very good good

Benzene good

Petrol good

Biodiesel good

Brake fluid DOT 3 very good very good

Dimethyl sulfoxide (DMSO) good good

Iron(III)-oxide very good very good

Ethylene glycol very good very good

Formaldehyde very good very good

Hydrochloric acid, conc. very good good

Hydraulic fluid good good

Isopropanol good

Kerosene very good

Carbon monoxide very good very good

Engine oil very good very good

Sodium carbonate very good very good

Sodium hydroxide, 50% conc. very good very good

Nickel chloride very good very good

Organic nitrogen compounds very good good

Phosphoric acid, 50% conc. very good

Cleaning solutions very good good

Acids good good

Sulphuic acid, < 40% conc. good good

Sulphur trioxide very good very good

Toluene very good

Water vapour very good very good

Hydrogen peroxide very good very good

Good means: resistantLimited resistance under the stated conditions.

Very good means: extremely resistant Unlimited resistance under the stated conditions.

Resistance to Media

10/2

014

We will be pleased to meet you!

AKRO-PLASTIC GmbH Member of the Feddersen Group Industriegebiet Brohltal OstIm Stiefelfeld 156651 NiederzissenGermanyPhone: +49(0)2636-9742-0Fax: +49(0)[email protected] www.akro-plastic.com

For more locations, visit www.akro-plastic.com

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