Volume 4 - Loctite.ph

More documents

Recommendations

Info

Cellulose Acetate Propionate (CAP)ThermoplasticTrade Names• TeniteManufacturerEastman Chemical ProductsGeneral DescriptionCellulose is a naturally occurring polymer derived from wood pulp andcotton which is chemically modified to form a cellulosic plastic. The threemajor families of cellulose are ethyl cellulose, cellulose nitrate, andcellulose esters. The four most commonly used cellulose esters arecellulose acetate (CA), cellulose acetate butyrate (CAB), cellulose acetatepropionate (CAP), and cellulose triacetate. Cellulose acetate propionate,one of the most commonly used cellulosic polymers, is manufactured byreacting cellulose with propionic acid and propionic anhydride. Cellulosicsare tough, abrasion resistant plastics that have found use in a variety ofapplications such as films, dice, and eyeglasses. Specialty gradesavailable include plasticized, UV stabilized, flame retardant, and colored.In 2004, the price of CAP ranged approximately from $1.75 to $2.00 perpound at truckload quantities.Typical Properties of Cellulose Acetate Propionate (CAP)American EngineeringProcessing Temperature 446°F to 464°F 230°C to 240°CLinear Mold Shrinkage 0.002 to 0.006 in./in. 0.002 to 0.006 cm/cmMelting Point 300°F to 400°F 149°C to 204°CDensity 74.9 to 81.2 lb./ft. 3 1.20 to 1.30 g/cm 3Tensile Strength, Yield 3.6 to 6.1 lb./in. 2 x 10 3 2.5 to 4.3 kg/cm 2 x 10 2Tensile Strength, Break 4.5 to 7.1 lb./in. 2 x 10 3 3.2 to 5.0 kg/cm 2 x 10 2Elongation, Break 34.0 to 50.0% 34.0 to 50.0%Tensile Modulus – –Flexural Strength, Yield 4.4 to 8.2 lb./in. 2 x 10 3 3.1 to 5.8 kg/cm 2 x 10 2Flexural Modulus 1.9 to 3.2 lb./in. 2 x 10 5 1.3 to 2.2 kg/cm 2 x 10 4SIGeneral PropertiesThe main benefits offered by cellulosics are clarity, toughness at lowtemperatures, abrasion resistance, glossy appearance, resistance tostress cracking, and good electrical insulating properties. Other benefitsof cellulosics include a warm, pleasant feel to the touch (due to their lowthermal conductivity and specific heat), the availability of formulationswhich can be used in contact with food, and the ability to be processedby most thermoplastic methods. Generally, plasticizers are added tolower the melt temperature and modify the physical properties. Asplasticizer is added, the hardness, stiffness and tensile strengthdecrease, while the impact strength increases. The solvent resistance ofcellulosics varies with type. In general, they are resistant to attack byaliphatic hydrocarbons, bleach, ethylene glycol, salt solutions, andvegetable and mineral oils. However, cellulosics are known to beattacked by alkaline materials and fungus. Cellulosics are further limitedby their flammability, low continuous use temperatures, and poorresistance to weathering, although UV resistant grades are available.Compressive Strength 4.4 to 8.1 lb./in. 2 x 10 3 3.1 to 5.8 kg/cm 2 x 10 2Izod Notched, R.T. 1.2 to 8.3 ft.-lb./in. 6.5 to 44.8 kg cm/cmHardness R75 - R130 Rockwell R75 - R130 RockwellThermal Conductivity 1.73 to 1.74 BTU-in./hr.-ft. 2 -°F 0.246 to 0.251 W/m-°KLinear ThermalExpansionDeflection Temperature@ 264 psiDeflection Temperature@ 66 psiContinuousService Temperature– –120°F to 200°F 49°C to 93°C140°F to 230°F 60°C to 110°C– –Dielectric Strength – –Dielectric Constant@ 1 MHzDissipation Factor@ 1 MHzWater Absorption,24 hr.3.5 to 3.6 3.5 to 3.60.020 to 0.030 0.020 to 0.0301.3 to 2.4% 1.3 to 2.4%Typical Applications• Films – Photographic film, audio tape, visual aids,greeting cards, photo albums• Miscellaneous – Lacquer and cement base, explosives, fashionaccessories, flashlight cases, fire extinguisher components, toys,tool handles, electrical appliance housings, eyeglass framesand lenses, lighting fixtures, brush handles24The Loctite ® Design Guide for Bonding Plastics, Volume 4
ADHESIVE SHEAR STRENGTH(psi)(MPa)Cellulose Acetate PropionateUNFILLED RESIN3 rmsROUGHENED19 rmsANTIOXIDANT0.15% Irganox 1010UV STABILIZER0.2% Chimasorb 994FLAME RETARDANT17% Reofos 35PLASTICIZER9% Benzoflex 988LUBRICANT0.1% Zinc StearateFILLER #117% 497 FiberglassFILLER #217% Omyacarb F CzCO3COLORANT1% GreenANTISTATIC1.5% Markstat AL-12Loctite ® 380 Black Max ® Instant Adhesive,Rubber Toughened4002.84002.84002.84002.82501.72501.72501.74002.86504.54002.8170011.7Tenite 3754000012 produced byEastman Performance ProductsLoctite ® 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 Acrylic195013.5215014.8155010.712008.3195013.5155010.7155010.79006.2195013.5215014.8155010.77004.8>2450 1350>16.9 9.3200013.8200013.85503.810006.99006.26504.510507.212008.311507.96504.5195013.5215014.87505.23502.4195013.5>1950 † 1950>13.5 † 13.5>2200 >2150 2150>15.2 >14.8 14.8155010.76504.5155010.712008.3155010.78505.9>2200 >15.2 180012.4>2450 >16.9 4002.8Loctite ® 3105 Light Cure Adhesive,MEDICAL: Loctite ® 3311 Light Cure Adhesive185012.8185012.8185012.8185012.813009.0150010.3185012.8>1900 † >1600 † 1850>13.1 † >11.0 † 12.8>2250 >15.5 Tenite 375E4000012 produced by Eastman Performance Products courtesy of Albis Plastics 2 rmsLoctite ® 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>1950 >13.4 190013.15503.86004.1>2000 >13.8 11007.64002.810507.2155010.7NOTTESTED>3050 >21.0 2501.7500.31501.0195013.510006.97004.82001.4Adhesive PerformanceLoctite ® 3340 Light Cure Adhesive, Loctite ® 3030 Adhesive and Loctite ® Fixmaster ® High PerformanceEpoxy all created bonds that were stronger than the standard grade of CAP tested. Loctite ® 401 Prism ®and 414 Super Bonder ® Instant Adhesives, Loctite ® 4305 Flashcure ® and 3105 Light Cure Adhesives,and Loctite ® 3631 Hysol ® Hot Melt Adhesive typically achieved the next highest bond strengths on CAP.Loctite ® 330 Depend ® Adhesive, Loctite ® E-00CL , E-30CL and and E-20HP Hysol ® Epoxy Adhesivesand Loctite ® U-05FL Hysol ® Urethane Adhesive performed exceptionally as well.Surface TreatmentsLoctite ® 770 Prism ® Primer, when used in conjunction with Loctite ® 401 Prism ® Instant Adhesive, orLoctite ® 4011 Prism ® Instant Adhesive with Loctite ® 7701 Prism ® Primer, had no overall statisticallysignificant effect on the formulations of CAP which were evaluated. However, it did cause a statisticallysignificant decrease in bond strengths achieved on the UV stabilized and antistatic formulations, and astatistically significant increase for the glass and calcium carbonate filled formulations. Surfaceroughening caused either no effect or a statistically significant decrease in the bondability of CAP.Other Important Information• Cellulosics can be stress cracked by uncured cyanoacrylate adhesives,so any excess adhesive should be removed from the surface immediately.• Cellulosics are compatible with acrylic adhesives, but can be attacked by their activators before theadhesive has cured. Any excess activator should be removed from the surface immediately.• Surface cleaners: isopropyl alcohol, Loctite® ODC-Free Cleaner & Degreaser.NOTES: The force applied to the tests specimens exceededthe strength of the material resulting in substrate failurebefore the actual bond strength achieved by theadhesive could be determined.† Due to the severe deformation of the block shearspecimens, testing was stopped before the actual bondstrength achieved by the adhesive could be determined(the adhesive bond never failed).NOT TESTED: Substrate melted at adhesivecure temperature.The addition of the indicated additive (or surfaceroughening) caused a statistically significant decrease inthe bond strength within 95% confidence limits.The addition of the indicated additive (or surfaceroughening) caused a statistically significant increasein the bond strength within 95% confidence limits.The Loctite ® Design Guide for Bonding Plastics, Volume 4 25
Page 5 and 6: 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
Page 17 and 18: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ac
Page 25: ADHESIVE SHEAR STRENGTH(psi)(MPa)Di
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 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
show all

Volume 4 - Loctite.ph

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?