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Adhesives & Cements

Adhesives & Cements. Justin Brandt Matt Klimchak Ryan Smith. Objective. Brief Overview of Adhesives. Overview. History Types Chemical Structure Applications Advantages / Disadvantages Properties. Overview. Process Major Suppliers Costs Conclusion. History.

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Adhesives & Cements

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  1. Adhesives & Cements Justin Brandt Matt Klimchak Ryan Smith

  2. Objective • Brief Overview of Adhesives

  3. Overview • History • Types • Chemical Structure • Applications • Advantages / Disadvantages • Properties

  4. Overview • Process • Major Suppliers • Costs • Conclusion

  5. History • First Forms – Tree Sap & Tar • Egyptians • 2000 BC – Glue • Romans • Veneering & Marquetry • First Caulking

  6. History • Genghis Khan • Weaponry • Antonio Stradivari • Violins • Holland • First Manufactures • British • First Patent

  7. Acrylics Epoxies Urethanes Cyanoacrylates Hot Melts Labeling Adhesives Contact Cements Anaerobics UV Curables Emulsion Sealants Specialty Adhesives Types

  8. Chemical Structure Epoxies

  9. Automotive Building & Civil Engineering Carpentry Flexible Packaging Footwear Applications

  10. Applications • General Industry • Insulated Glazing • Rubbercrumb • Sandwich Construction

  11. Application Chart

  12. Advantages • Great Flexibility • No Stress Concentrations • Weight Reduction • More Elegant Appearance • Vibration Damping • Stronger & Stiffer Structures

  13. Advantages • Accuracy • Bond is Continuous • Joining Dissimilar Materials • Delays Corrosion • Improved Fatigue Resistance • Easily Automated

  14. Disadvantages • Durability of Joint • Limited Inspection Techniques • Change in Temperatures • Limited Bond Time • Difficult to Un-bond • Preparation • Environmental Considerations

  15. Special Considerations • Ability to Wet the Plastic • Chemical & Physical Interaction • Stress Cracking • Anneal Parts • Avoid Squeezing • Fast-Curing Adhesives • Unfilled Amorphous Materials

  16. Properties • High Tensile Strength: up to 45MPa • Low Peel Strength: 1.8kg/mm • Chemical Resistance • Acids, Bases, Salts, & Solvents • Low Shrinkage

  17. Properties • Temperature: 150 - 250 °C • Cure Temperatures: 20 - 150 °C • Depends on Grade • Good Mechanical Properties: -250 - 260 °C

  18. Process of Applying the Adhesive • Prepare Surface • Wetting • Surface Cleaning • Chemical Etching • Flame Treatment • Corona Treatment • Plasma Treatment • Coupling Agents • Mechanical Abrasion

  19. Process of Applying the Adhesive • Apply Adhesive • Apply Clamping Force • Allow for Cure Time

  20. Equipment • Automated or Hands-on • UV Light • Electron Beam • Brush • Heat Gun • Spray

  21. Alcoa BASF Bayer BF Goodrich Dow Goodyear Huntsman 3M Major Suppliers

  22. Costs

  23. Conclusion • Niche Market • Packaging • Textiles • Civil Engineering • Tapes & Labels • Construction • Motor Vehicles • Adhesives are Everywhere

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