2. PEEK
GEHR PEEK® GEHR PEEK® GEHR PEEK®
Polyetheretherketon besitzt eine sehr Polyetheretherketone can be used at Le polyétheréthercétone possède une
hohe Dauergebrauchstemperatur (ca. very high temperatures (about +260 °C) très haute température d’utilisation en
+260 °C), Steifigkeit und Härte, eine and it shows an extraordinary mechanical continu (env. +260 °C), une solidité et
einzigartig hohe Zug- und Biegewech- strength, toughness, hardness, flexural une dureté élevées, une résistance
selfestigkeit (hohe Zähigkeit und Ermü- strength, torsional strength. PEEK exhibits élevée à la traction et à la flexion alternée
dungsfestigkeit), eine hohe Wärmeform- excellent chemical resistance, very good unique en son genre, (ténacité et
beständigkeit und eine sehr gute dielectric properties up to +260 °C and résistance à la fatigue élevées), une
Chemikalienbeständigkeit. Es besitzt a very good resistance to all kinds of grande résistance à la déformation
sehr gute dielektrische Eigenschaften radiation (even ultraviolet rays only lead thermique et une très bonne stabilité
bis +260 °C und ist beständig gegen to a slight yellow discolouration of its chimique. Il possède de très bonnes
energiereiche Strahlung (selbst UV- self-extinguishing properties according propriétés diélectriques jusqu’à
Strahlen führen nur zu einer leichten to UL 94. +260 °C et résiste au rayonnement à
Gelbfärbung des Materials). PEEK ist haute énergie (même des rayons UV ne
selbstverlöschend gemäß UL 94. Properties: provoquent qu’un léger jaunissement du
• very high mechanical strength matériau). Le PEEK est auto-extinguible
Eigenschaften: • very high rigidity (also at low tempera- selon UL 94.
• sehr hohe Festigkeit und Steifigkeit ture)
• sehr hohe Zähigkeit (auch bei Kälte) • very high thermal stability Propriétés :
• sehr hohe Temperaturbeständigkeit • very high creep resistance • Solidité et rigidité très élevées
• sehr hohe Wärmeformbeständigkeit • very high dimensional stability • Ténacité très élevée (même au froid)
• sehr hohe Kriechfestigkeit • very high radiation resistance • Résistance thermique très élevée
• sehr hohe Dimensionsstabilität • very high hydrolysis resistance • Résistance très élevée à la
• sehr hohe Beständigkeit gegen ß-, • relatively low notch impact-strength déformation thermique
γ-, Röntgen- und Infrarotstrahlen • low resistance to acetone • Résistance au fluage très élevée
• hohe Hydrolysebeständigkeit • Très grande stabilité dimensionnelle
• relativ geringe Kerbschlagzähigkeit Application: • Résistance très élevée aux rayons β,
• geringe Beständigkeit gegen Aceton Bearing shells, piston rings, valve seats, g, X et infrarouges
gears, seals, aviation, cog-wheels, pump • Résistance élevée à l’hydrolyse
Anwendungsbeispiele: vanes, fittings, plug connectors for the- • Résistance aux chocs relativement
Kolbendichtringe, Gleitlager, Ventilsitze, chromatography, wafer carriers, semi- faible
Lagerschalen, Zahnräder, Pumpenlauf- conductor industry. • Faible résistance à l’acétone
räder, Steckverbinder und Fittings in der
Chromatographie, Säulenpackungen, GEHR PEEK-mod® Exemples d’application :
Dichtungsringe, Halbleiterindustrie. Reinforced with 10% of each PTFE, Segments de pistons, paliers lisses,
graphite and carbonfibre. sièges de soupapes, coquilles de
GEHR PEEK-mod® Very good friction and wear and tear paliers, roues dentées, roues mobiles
verstärkt mit zu jeweils 10% PTFE, Grafit properties. de pompes, connecteurs à fiches et
und Kohlefaser. garnitures en chromatographie, enro-
Sehr gutes Gleitreib- und Gleitverschleiß- GEHR PEEK-30GF® bages de colonnes, bagues d’étanchéité,
PEEK
verhalten. Reinforced with 30% glass fibre. semi-conducteur industrie.
GEHR PEEK-30GF® GEHR PEEK-mod®
verstärkt mit 30% Glasfaser. Renforcé jusqu’à 10% au PTFE, au
graphite et aux fibres de carbone.
Très bon comportement au frottement
dynamique et à l’usure par frottement.
GEHR PEEK-30GF®
Renforcé à 30% fibre de verre.
58
4. Technical Data Sheet
GEHR PEEK
I. Physical Properties
Test method Unit Value
1. Specific gravity (ρ) ISO 1183 g/cm³ 1,32
2. Water absorption ISO 62 % 0,1
3. Maximum permissible service temp - - -
(no stronger mechanical stress involved)
Upper temperature limit - °C 260
Lower temperature limit - °C -40
II. Mechanical Properties
Test method Unit Value
1. Tensile strength at yield ISO 527 MPa 97
2. Elongation at yield. (εS) ISO 527 % 4,9
3. Tensile strength at break (σR) ISO 527 MPa -
4. Elongation at break (εR) ISO 527 % >60
5. Impact strength (an) ISO 179 kJ/m2 No break
6. Notch impact strength (ak) ISO 179 kJ/m2 8,2
7. Ball indentation / Rockwell hardness ISO 2039-1 MPa M 99
8. Shore-D DIN 53505 90
9. Flexural strength (σB 3,5 %) ISO 178 MPa 170
10. Modulus of elasticity (Et) ISO 527 MPa 3660
III. Thermal Properties
Test method Unit Value
1. Vicat-softening point VST/B/50 ISO 306 °C 250
VST/A/50 ISO 306 °C -
2. Heat deflection temperature HDT/B ISO 75 °C 240
HDT/A ISO 75 °C 152
3. Coefficient of linear thermal expansion α DIN 53752 K-1∗10-4 0,47
4. Thermal conductivity at 20 °C (λ) DIN 52612 W/(m∗K) 0,25
IV. Electrical Properties
Test method Unit Value
1. Volume resistivity VDE 0303 Ω∗cm ≥1016
Ω ≥10
15
2. Surface resistivity (Ro) VDE 0303
3. Dielectric constant at 1MHz (εr) DIN 53483 - 3,2
4. Dielectric loss factor at 1 MHz (tanδ) DIN 53483 - 0,003
5. Dielectric strength VDE 0303 kV/mm 19
6. Tracking resistance IEC 60122 - CTI 150
V. Additional Data
Test method Unit Value
1. Bond ability - - +
2. Friction coefficient DIN 53375 - 0,34
3. Flammability UL 94 - V-0
4. UV stabilisation - - fair
All values are attributes of the used raw materials.
The physical data contained in this table are typical values. They are obtained on test specimens under specific conditions and
represent average values of a large number of tests. The results obtained on this tests specimens cannot be applied to finished
parts without reservations, as behaviour is influenced by processing and shaping. Reproduction only with our definite permis-
sion.
Subject to change without notice. Page 1 of 1 Date: 11/07
5. Technical Data Sheet
GEHR PEEK-mod
I. Physical Properties
Test method Unit Value
1. Specific gravity (ρ) ISO 1183 g/cm³ 1,48
2. Water absorption ISO 62 % 0,06
3. Maximum permissible service temp - - -
(no stronger mechanical stress involved)
Upper temperature limit - °C 260
Lower temperature limit - °C -40
II. Mechanical Properties
Test method Unit Value
1. Tensile strength at yield ISO 527 MPa 141
2. Elongation at yield. (εS) ISO 527 % -
3. Tensile strength at break (σR) ISO 527 MPa 118
4. Elongation at break (εR) ISO 527 % 3
5. Impact strength (an) ISO 179 kJ/m2 27,5
6. Notch impact strength (ak) ISO 179 kJ/m2 6,3
7. Ball indentation / Rockwell hardness ISO 2039-1 MPa -
8. Shore-D DIN 53505 87
9. Flexural strength (σB 3,5 %) ISO 178 MPa 210
10. Modulus of elasticity (Et) ISO 527 MPa 8100
III. Thermal Properties
Test method Unit Value
1. Vicat-softening point VST/B/50 ISO 306 °C -
VST/A/50 ISO 306 °C -
2. Heat deflection temperature HDT/B ISO 75 °C 293
HDT/A ISO 75 °C 277
3. Coefficient of linear thermal expansion α DIN 53752 K-1∗10-4 0,22
4. Thermal conductivity at 20 °C (λ) DIN 52612 W/(m∗K) 0,24
IV. Electrical Properties
Test method Unit Value
1. Volume resistivity VDE 0303 Ω∗cm ≥105
Ω ≥10
7
2. Surface resistivity (Ro) VDE 0303
3. Dielectric constant at 1MHz (εr) DIN 53483 - -
4. Dielectric loss factor at 1 MHz (tanδ) DIN 53483 - -
5. Dielectric strength VDE 0303 kV/mm 24,5
6. Tracking resistance IEC 60122 - -
V. Additional Data
Test method Unit Value
1. Bond ability - - Fair
2. Friction coefficient DIN 53375 - 0,11
3. Flammability UL 94 - V-0
4. UV stabilisation - - +
All values are attributes of the used raw materials.
The physical data contained in this table are typical values. They are obtained on test specimens under specific conditions and
represent average values of a large number of tests. The results obtained on this tests specimens cannot be applied to finished
parts without reservations, as behaviour is influenced by processing and shaping. Reproduction only with our definite permis-
sion.
Subject to change without notice. Page 1 of 1 Date: 11/07
7. Chemical Resistance
GEHR PEEK
Konz. (%) Raumtemperatur 60 °C
Methylene chloride 100 +
Milk + +
Mineral oils, aromatic free +
Nitric acid 10 + +
Nitric acid 50 + o
Nitrobenzene +
Oxalic acid + +
Ozone, gas ca. 0,5 ppm + o
Paraffine oil 100 +
Perchloroethylene + +
Petroleum ether 100 + +
Petroleum, aromatic free 100 + +
Phenol, aqu ca. 9 +
Phosphoric acid 50 + +
Potassium hydroxide liquor 50 +
Premium Fuel +
Propyl alcohol +
Pyridine + +
Silicone oil + +
Sodium carbonate, aqu + +
Sodium chloride, aqu + +
Sodium hydroxide liquor 15 + +
Sodium hydroxide liquor 60 + +
Sodium hyrogen sulphite + +
Sodium nitrate, aqu + +
Sodium thiosulfate + +
Sulphuric acid 96 - -
Tetrahydrofurane 100 +
Toluene 100 +
Transformer oil + +
Trichloroethylene 100 + +
Vinegar, standard 5-10 + +
Water + +
Xylene +
Symbolism for the description of the chemical resistance
+ = resistant (only small changes of the weight, dimensions and properties.
According our experiences there is no permanent damage expect).
o = partly resistant (medium changes of the properties. At longer contact time there are
permanent damages recommended e.g. degradation of the macro
molecular structure).
- = non resistant (strong and permanent degradation in short contact time e.g. stress
cracking).
= not tested (no tests were done, no recommendations are possible).
The figures indicated here are approximate values. They may be affected by the temperature, operating time, concentration and
stress level of the component involved, by mechanical loads, etc., and the user is not released therefore from the obligation of
performing checks and trials of his own. The values indicated here have been compiled on the bases of current experiences and
findings. Any legally binding guarantee of certain properties, or any suitability for a specific application cannot be inferred from
the present data.
Dok.-Nr. Name Erstelldatum/Geändert am Erstellt von Seite
PEEK_engl Chem-Best 11.12.2007 QM 2 von 2
8. GEHR GmbH GEHR Plastics, Inc. GEHR Plastics Hong Kong Limited
Casterfeldstr. 172 Naamans Creek Center Unit 2, 11/F,
68219 Mannheim 24 Creek Circle Fonda Industrial Building,
Boothwyn, PA 19061 37-39 Au Pui Wan Street
Fotan, Shatin
Germany USA Hong Kong
T: +49 - 621-87 89 - 0 T: +1 - 610 - 497 - 8941 T: +852 - 6977 - 33 18
F: +49 - 621-87 89 - 200 F: +1 - 610 - 497 - 8901 F: +852 - 3013 - 9544
info@gehr.de info@gehrplastics.com info@gehr.hk
www.gehr.de www.gehrplastics.com www.gehr.hk
GEHR Plastics China Office GEHR Plastics Bureau France GEHR Plastics Ufficio Italia
Room 1003, No. 7 6 Rue de la Chapelle DIPRO
New Phoenix Town Ginza 39700 Serre les Moulières Via Alessandria 55
51 Feng cheng road 10152 Torino
200093 Shanghai
China France Italy
T: +86 - 21 - 51 69 28 72 T: +33 - 7 - 86 48 38 04 T: +39 - 011-24 89 507
F: +86 - 21 - 60 91 93 03 F: +49 - 621 - 87 89 - 200 F: +39 - 011-24 85 733
info@gehr.cn info@gehr.fr info@gehr.it
www.gehr.cn www.gehr.fr www.gehr.it
3.11.11. STO
Änderungen vorbehalten. Subject to change. Sous réserve de modifications.
