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Published byAlexandra Small Modified over 8 years ago
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Adhesives & Cements Justin Brandt Matt Klimchak Ryan Smith
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Objective Brief Overview of Adhesives
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Overview History Types Chemical Structure Applications Advantages / Disadvantages Properties
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Overview Process Major Suppliers Costs Conclusion
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History First Forms – Tree Sap & Tar Egyptians 2000 BC – Glue Romans Veneering & Marquetry First Caulking
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History Genghis Khan Weaponry Antonio Stradivari Violins Holland First Manufactures British First Patent
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Types Acrylics Epoxies Urethanes Cyanoacrylates Hot Melts Labeling Adhesives Contact Cements Anaerobics UV Curables Emulsion Sealants Specialty Adhesives
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Chemical Structure Epoxies
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Applications Automotive Building & Civil Engineering Carpentry Flexible Packaging Footwear
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Applications General Industry Insulated Glazing Rubbercrumb Sandwich Construction
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Application Chart
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Advantages Great Flexibility No Stress Concentrations Weight Reduction More Elegant Appearance Vibration Damping Stronger & Stiffer Structures
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Advantages Accuracy Bond is Continuous Joining Dissimilar Materials Delays Corrosion Improved Fatigue Resistance Easily Automated
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Disadvantages Durability of Joint Limited Inspection Techniques Change in Temperatures Limited Bond Time Difficult to Un-bond Preparation Environmental Considerations
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Special Considerations Ability to Wet the Plastic Chemical & Physical Interaction Stress Cracking Anneal Parts Avoid Squeezing Fast-Curing Adhesives Unfilled Amorphous Materials
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Properties High Tensile Strength: up to 45MPa Low Peel Strength: 1.8kg/mm Chemical Resistance Acids, Bases, Salts, & Solvents Low Shrinkage
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Properties Temperature: 150 - 250 °C Cure Temperatures: 20 - 150 °C Depends on Grade Good Mechanical Properties: -250 - 260 °C
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Process of Applying the Adhesive Prepare Surface Wetting Surface Cleaning Chemical Etching Flame Treatment Corona Treatment Plasma Treatment Coupling Agents Mechanical Abrasion
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Process of Applying the Adhesive Apply Adhesive Apply Clamping Force Allow for Cure Time
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Equipment Automated or Hands-on UV Light Electron Beam Brush Heat Gun Spray
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Major Suppliers Alcoa BASF Bayer BF Goodrich Dow Goodyear Huntsman 3M
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Costs Epoxy Volume 1Volume 2 Compounds, Coils, Bushings105-152-- Compounds, Resistors, diodes--227-286 GP100-112-- Semi Conductor Anhydride--214-297 Semi Conductor Novolac--212-246 *Volume 1 = 2 - 5 Million Pounds *Volume 2 = 200000lbs - 500000 lbs *All Prices in Cents
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Conclusion Niche Market Packaging Textiles Civil Engineering Tapes & Labels Construction Motor Vehicles Adhesives are Everywhere
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