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Polymethylpentene (PMP)ThermoplasticTrade Names• TPXManufacturerMitsui PetrochemicalGeneral DescriptionPolymethylpentene, a member of the polyolefin family, is manufacturedby a catalytic polymerization of 4-methylpentene-1. PMP is known forits transparency and extremely low density. PMP is usually compoundedwith additives and comonomers to enhance its mechanical and opticalproperties. Specialty grades available include radiation resistant, as wellas mica and glass filled. In 2004, the price of PMP ranged approximatelyfrom $6.50 to $7.00 per pound at truckload quantities.General PropertiesPolymethylpentene is a highly transparent polyolefin with lighttransmission values up to 90%. PMP also has a relatively high meltingpoint of approximately 464°F (240°C), and it retains useful mechanicalproperties at temperatures as high as 401°F (205°C). Although PMP isdegraded by sunlight and high energy irradiation, there are gradesavailable which can withstand medical irradiation sterilization. PMP hasgood electrical properties and chemical resistance, however, it isattacked by strong oxidizing acids. Unfilled polymethylpentene has aspecific gravity of 0.83, which makes it one of the lightest thermoplasticresins.Typical Properties of Polymethylpentene (PMP)American EngineeringProcessing Temperature 550°F to 600°F 288°C to 316°CLinear Mold Shrinkage 0.002 to 0.021 in./in. 0.002 to 0.021 cm/cmMelting Point 450°F to 465°F 232°C to 241°CDensity 51.8 to 66.8 lb./ft. 3 0.83 to 1.07 g/cm 3Tensile Strength, Yield 2.1 to 3.4 lb./in. 2 x 10 3 1.5 to 2.4 kg/cm 2 x 10 2Tensile Strength, Break 3.1 to 6.0 lb./in. 2 x 10 3 2.2 to 4.2 kg/cm 2 x 10 2Elongation, Break 1.0 to 120.0% 1.0 to 120.0%Tensile Modulus 0.7 to 6.2 lb./in. 2 x 10 5 0.5 to 4.4 kg/cm 2 x 10 4Flexural Strength, Yield 4930 to 7530 psi 34 to 52 MPaFlexural Modulus 1.8 to 7.2 lb./in. 2 x 10 5 1.3 to 5.1 kg/cm 2 x 10 4Compressive Strength – –Izod Notched, R.T. 0.5 to 23.0 ft.-lb./in. 2.7 to 124.2 kg cm/cmHardness R35 - R90 Rockwell R35 - R90 RockwellThermal Conductivity – –SILinear ThermalExpansionDeflection Temperature@ 264 psiDeflection Temperature@ 66 psiContinuousService Temperature6.0 to 7.0 in./in.-°F x 10 -5 10.8 to 12.6 cm/cm-°C x10 -5150°F to 250°F 66°C to 121°C180°F to 250°F 82°C to 121°C– –Dielectric Strength 1650 to 1700 V/10 -3 in. 6.5 to 6.7 V/mm x 10 4Dielectric Constant@ 1 MHzDissipation Factor@ 1 MHzWater Absorption,24 hr.2.0 to 2.2 2.0 to 2.2– –0.01 to 0.15% 0.01 to 0.15%Typical Applications• Medical – Syringes, connector pieces, hollowware,disposable curettes• Lighting – Diffusers, lenses, reflectors• Packaging – Microwave and hot air oven containers,food trays, coated paper plates• Miscellaneous – Liquid level and flow indicators,fluid reservoirs, machine bearing oiler bottles56The Loctite ® Design Guide for Bonding Plastics, Volume 4
ADHESIVE SHEAR STRENGTH(psi)(MPa)PolymethylpenteneUNFILLED RESIN3 rmsROUGHENED46 rmsANTIOXIDANT0.08% Irganox 1010UV STABILIZER0.1% Chimasorb 944FILLER23% MicaANTISTATIC0.3% Armostat 475TPX RT-18 courtesy of Mitsui PlasticsLoctite ® 380 Black Max ® Instant Adhesive,Rubber ToughenedLoctite ® 401 Prism ® Instant Adhesive,Surface InsensitiveMEDICAL: Loctite ® 4011 Prism ®Instant Adhesive, Surface InsensitiveLoctite ® 401 Prism ®Loctite ® 770 Prism ® PrimerMEDICAL: Loctite ® 4011 Prism ® /Loctite ® 7701 Prism ® PrimerLoctite ® 414 Super Bonder ®Instant Adhesive, General PurposeLoctite ® 330 Depend ® Adhesive,Two-Part No-Mix AcrylicLoctite ® 3105 Light Cure Adhesive,MEDICAL: Loctite ® 3311 Light Cure AdhesiveLoctite ® 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 StrengthLoctite ® Fixmaster ® High Performance EpoxyLoctite ® 1942 Hysol ® Hot Melt Adhesive,EVA BasedLoctite ® 3651 Hysol ® Hot Melt Adhesive,PolyolefinLoctite ® 7804 Hysol ® Hot Melt AdhesiveLoctite ® 3631 Hysol ® Hot Melt Adhesive,UrethaneLoctite ® 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 Silicone>50>0.31501.01000.75003.5>1900 † 1000>13.1 † 6.92501.71000.72001.4500.31000.7500.3
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How To Use The Plastic Bonding Guid
Page 8: Cyanoacrylate AdhesivesGeneral Desc
Page 11 and 12: Light Curing Acrylic AdhesivesGener
Page 13 and 14: Silicone AdhesivesGeneral Descripti
Page 15 and 16: Why Bond Plastics With Loctite ® B
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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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