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Polyetheretherketone (PEEK)ThermoplasticTrade Names Manufacturer• ArlonGreene, Tweed & Co.• Victrex PEEKVictrex, USATypical Properties of Polyetheretherketone (PEEK)American EngineeringSIProcessing Temperature 700°F to 750°F 371°C to 399°CGeneral DescriptionPolyetheretherketone, a poly(aryletherketone), is a linear, semi-crystalline,wholly aromatic polymer. It offers outstanding thermal stability and isresistant to a wide range of chemicals. Due to PEEK’s suitability forextreme service conditions, it has found use in many demanding nicheapplications such as high temperature bearings and aircraft radomes andfairings. Specialty grades available include glass, carbon and PTFE filledgrades. In 2004, the price of PEEK ranged approximately from $33.00 to$36.00 per pound at truckload quantities.General PropertiesPEEK is a high performance thermoplastic which is well suited forhigh-temperature environments. In addition, it has good mechanicalproperties, including a flexural modulus among the highest of allthermoplastics. Furthermore, the addition of fillers to PEEK typicallyincreases both its modulus and thermal stability. PEEK is suitable forapplications that will see intermittent exposure to temperatures up to600°F (315°C) and has a maximum continuous service temperature ofapproximately 480°F (250°C). Unfilled PEEK meets UL94 V-0flammability requirements and generates very little smoke uponcombustion. PEEK resists mild acids and bases at elevatedtemperatures, superheated water up to 500°F (260°C), and mostcommon organic solvents. PEEK also has outstanding resistance toradiation, significantly greater than polystyrene, the second mostradiation resistant polymeric material. Samples of PEEK have withstood1100 Mrads without significantly degrading. Sunlight and weatheringresistance are also good, with no loss of properties evident after oneyear of outdoor exposure.Linear Mold Shrinkage 0.001 to 0.005 in./in. 0.001 to 0.005 cm/cmMelting Point 630°F to 640°F 332°C to 338°CDensity 84.3 to 96.8 lb./ft. 3 1.35 to 1.55 g/cm 3Tensile Strength, Yield 16.9 to 31.2 lb./in. 2 x 10 3 11.9 to 21.9 kg/cm 2 x 10 2Tensile Strength, Break 13.1 to 26.1 lb./in. 2 x 10 3 9.2 to 18.7 kg/cm 2 x 10 2Elongation, Break 2.0 to 8.0% 2.0 to 8.0%Tensile Modulus 9.0 to 35.5 lb./in. 2 x 10 5 6.3 to 23.6 kg/cm 2 x 10 4Flexural Strength, Yield 21.6 to 39.8 lb./in. 2 x 10 3 15.2 to 28.0 kg/cm 2 x 10 2Flexural Modulus 4.0 to 20.0 lb./in. 2 x 10 5 2.8 to 14.1 kg/cm 2 x 10 4Compressive Strength 11.0 to 32.0 lb./in. 2 x 10 3 7.7 to 22.5 kg/cm 2 x 10 2Izod Notched, R.T. 0.9 to 2.2 ft.-lb./in. 4.7 to 11.9 kg cm/cmHardness M100 - M124 Rockwell M100 - M124 RockwellThermal Conductivity 1.5 to 6.5 BTU-in./hr.-ft. 2 -°F 0.22 to 0.94 W/m-°KLinear ThermalExpansionDeflection Temperature@ 264 psiDeflection Temperature@ 66 psiContinuousService Temperature0.7 to 1.8 in./in.-°F x 10 -5 1.3 to 3.2 cm/cm-°C x10 -5350°F to 610°F 177°C to 321°C500°F to 640°F 260°C to 338°C428°F to 480°F 220°C to 249°CDielectric Strength 350 to 500 V/10 -3 in. 1.4 to 2.0 V/mm x 10 4Dielectric Constant@ 1 MHzDissipation Factor@ 1 MHzWater Absorption,24 hr.3.0 to 4.2 3.0 to 4.20.001 to 0.005 0.001 to 0.0050.06 to 0.18% 0.06 to 0.18%Typical Applications• Aerospace – Wire and cable insulation, coatings, EMI/RFI shields• Miscellaneous – High temperature bearings, compressor parts,nuclear power plant and oil well applications, military equipment44The Loctite ® Design Guide for Bonding Plastics, Volume 4
ADHESIVE SHEAR STRENGTH(psi)(MPa)PolyetheretherketoneVICTREX450G CONTROL450G ROUGHENED22 rmsPEEK 450 CA3030% Carbon Fiber,courtesy of Victrex, U.S.A.THERMOCOMPLF-100630% Glass Fiber, courtesyof LNP Engineering PlasticsLUBRICOMPLCL-4033 EM15% Carbon Fiber,15% PTFE, courtesy ofLNP Engineering PlasticsLoctite ® 380 Black Max ® Instant Adhesive,Rubber Toughened1501.07004.81501.01000.71000.7Loctite ® 401 Prism ® Instant Adhesive,Surface InsensitiveMEDICAL: Loctite ® 4011 Prism ®Instant Adhesive, Surface Insensitive2501.73502.42001.42501.74002.8Loctite ® 401 Prism ®Loctite ® 770 Prism ® PrimerMEDICAL: Loctite ® 4011 Prism ® /Loctite ® 7701 Prism ® Primer2501.73502.44503.15503.83002.1Loctite ® 414 Super Bonder ®Instant Adhesive, General Purpose2001.43002.12501.74002.82501.7Loctite ® 330 Depend ® Adhesive,Two-Part No-Mix Acrylic3502.43502.44503.15003.55003.5Loctite ® 3105 Light Cure Adhesive,MEDICAL: Loctite ® 3311 Light Cure Adhesive11007.611007.69506.612008.39006.2Unfilled Resin courtesy of Victrex, U.S.A. and Modern PlasticsLoctite ® 3340 Light Cure Adhesive,UV Cationic EpoxyLoctite ® 4305 Flashcure ® Light Cure AdhesiveFLUORESCENT: Loctite ® 4307 Flashcure ®Light Cure AdhesiveLoctite ® H3000 Speedbonder Structural Adhesive, General PurposeLoctite ® H4500 Speedbonder Structural Adhesive, Metal BonderLoctite ® 3030 Adhesive, Polyolefin BonderLoctite ® E-00CL Hysol ® Epoxy Adhesive,Low OdorLoctite ® E-90FL Hysol ® Epoxy Adhesive,FlexibleLoctite ® E-30CL Hysol ® Epoxy Adhesive,Glass BonderMEDICAL: Loctite ® M-31CL Hysol ®Epoxy Adhesive, Glass BonderLoctite ® E-20HP Hysol ® Epoxy Adhesive,Fast SettingMEDICAL: Loctite ® M-21HP Hysol ®Epoxy Adhesive, Fast SettingLoctite ® E-214HP Hysol ® Epoxy Adhesive,High Strength2001.49006.23002.12501.73002.12501.74503.15003.53002.15003.5Adhesive PerformanceLoctite ® 3105 and 4305 Flashcure ® Light Cure Adhesives consistently achieved the highest bondstrengths on PEEK. With the exception of the three hot melt adhesives, all other adhesives developedmoderate to good bond strength on unfilled PEEK.Surface TreatmentsSurface roughening caused either no effect or a statistically significant increase in the bond strengthsachieved on PEEK. Loctite ® 770 Prism ® Primer, used in conjunction with Loctite ® 401 Prism ® InstantAdhesive, or Loctite ® 4011 Prism ® Medical Device Instant Adhesive with Loctite ® 7701 Prism ® Primer,had no overall statistically significant effect on the bondability of PEEK. However, Loctite ® 770 and7701 Prism ® Primers did result in a statistically significant increase in the bond strengths achieved onthe PEEK 450 CA30 and Thermocomp LF-1006 grades.Other Important Information• PEEK is compatible with all Loctite ® brand adhesives, sealants, primers, and activators.• Surface cleaners: isopropyl alcohol, Loctite ® ODC-Free Cleaner & Degreaser.Loctite ® Fixmaster ® High Performance Epoxy4002.8Loctite ® 1942 Hysol ® Hot Melt Adhesive,EVA Based1000.7Loctite ® 3651 Hysol ® Hot Melt Adhesive,Polyolefin500.3Loctite ® 7804 Hysol ® Hot Melt Adhesive1000.7Loctite ® 3631 Hysol ® Hot Melt Adhesive,Urethane7505.2Loctite ® U-05FL Hysol ® Urethane Adhesive,High StrengthLoctite ® Fixmaster ® Rapid Rubber RepairOEM: Loctite ® U-04FL Hysol ®Urethane Adhesive, Fast SettingLoctite ® 5900 ® Flange Sealant,Heavy Body RTV Silicone6004.17505.22001.4NOTES:The addition of the indicated additive (or surfaceroughening) caused a statistically significant decrease inthe bond strength within 95% confidence limits.NOTES:The addition of the indicated additive (or surfaceroughening) caused a statistically significant increase inthe bond strength within 95% confidence limits.The Loctite ® Design Guide for Bonding Plastics, Volume 4 45
Page 3: Table of ContentsIntroduction 2How
Page 6 and 7: How To Use The Plastic Bonding Guid
Page 8 and 9: Cyanoacrylate AdhesivesGeneral Desc
Page 10 and 11: Hot Melt AdhesivesGeneral Descripti
Page 12 and 13: Polyurethane AdhesivesGeneral Descr
Page 14 and 15: No-Mix and Static Mix Acrylic Adhes
Page 16: Acetal HomopolymerThermoplasticTrad
Page 20: Acrylic-Styrene-Acrylonitrile (ASA)
Page 23 and 24: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ac
Page 25 and 26: ADHESIVE SHEAR STRENGTH(psi)(MPa)Di
Page 27 and 28: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ce
Page 29 and 30: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ep
Page 31 and 32: ADHESIVE SHEAR STRENGTH(psi)(MPa)Po
Page 33 and 34: ADHESIVE SHEAR STRENGTH(psi)(MPa)Io
Page 35 and 36: ADHESIVE SHEAR STRENGTH(psi)(MPa)Li
Page 37 and 38: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ph
Page 45: ADHESIVE SHEAR STRENGTH(psi)(MPa)Po
Page 53 and 54: ADHESIVE SHEAR STRENGTH(psi)(MPa)Lo
Page 73 and 74: ADHESIVE SHEAR STRENGTH(psi)(MPa)St
Page 75 and 76: ADHESIVE SHEAR STRENGTH(psi)(MPa)Vi
Page 77 and 78: Surface TreatmentsAdhesive Abrading
Page 79 and 80: Adhesive Joint DesignIntroductionIn
Page 81 and 82: TitleDesign GuidelinesEngineers mus
Page 83 and 84: Shortening bond overlaps reduces bo
Page 85 and 86: Softening and weakening of the surf
Page 87 and 88: Determining The Test MethodThe lap
Page 89 and 90: Block Shear Test Method1. Assemblie
Page 91 and 92: ViscosityViscosity is a product pro
Page 93 and 94: Index of Trade NamesTrade Name Plas
Page 95 and 96: Trade Name Plastic Type Manufacture
Page 97 and 98:
AcknowledgmentsThis manual would no
Page 99:
For more information, please call 1
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