1. Het Belang en het Gebruik van
Atmosferisch Plasma in
Lijmapplicaties.
Voor
Bij
Mol 12 mei 2011
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2. Wat doet LCS ?
LCS Belgium bvba
Consultancy
in
Adhesive Bonding Technology
www.lcs-adhesivebonding.com
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3. Mission Statement
LCS Belgium provides consultancy
services to all users of adhesives,
encapsulants, coatings, sealants and
fluids in order to cost-effectively
improve clients’ development,
implementation, manufacturing and
quality control processes &
procedures.
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4. Oh, yes !
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5. NASA – Spaceshuttle - Damage
Ablative Tile Material: ceramic
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6. Advantages of Adhesives
• Easy & Fast: less rework
• Also for dissimilar materials
– e.g. metal-plastic & thick-thin
• Higher Strength: uninterrupted joint
– No or less weak points
• Improved Stress-distribution & -reduction
– Higher fatiguestrength
• Sealing: corrosion prevention
– Liquid- & gastight
• Damped Vibrations – less Noise S&R
• Light: weight reduction
• Esthetic: invisible
• Bonding also “Thin” & “Small” components
• Less components
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7. Sticking as a Gecko
www.wildeyereptiles.com
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8. What’s “Bonding” ? Definition
Joining of
two substrates
by means of a
third medium
= the adhesive
Adhesion vs Cohesion
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9. What’s “Bonding” ? Mechanisms
• Vanderwaals
– Glassplates
experiment
• Chemical
– Si primer
• Mechanical
– Surface
roughness
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10. But what’s really on the ‘Surface’ ?!
Surface condition of
substrates !!!
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11. But what’s really on the ‘Surface’ ?!
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12. Pretreatment of substrates
• Degreasing: cloth, vapour, ultrasonic
• Grinding: roughen = > surface
• Blasting: grit-, ice- . NON-recirculating !
• Primers: silanes – thickness = µm
• Chemical etch: bv Aluminium
• Flame & Corona: foil & sheet
• Plasma: vacuum & atmospheric – CA!
• Laser: surface structure change
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13. Failure Types
• Cohesive failure: in the adhesive
• Adhesive failure: on the surface of at least
one of the substrates
• Material Failure: one of both substrates
• Mixed Failure: a combination of the above
K07M01R32C.mov
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14. Failure Types
• Cohesion failure: lack of cure
• Material failure: plasma treated + fully cured
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15. Surface Treatment with Atmospheric Plasma
• Benkiser Labels
• Mint Cards
• Rottaler Bottles
• Hella BMW
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16. Surface Treatment with Atmospheric Plasma
Effects on Bonding Results
KB 4571
20
18 KB 4552
KB 45952
16
14
compression shear strength [MPa]
12
10
8
6
KB 4571
4
KB 45952
KB 4552
2
0
cleaned plasma-treated
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17. Surface Treatment with Atmospheric Plasma
Plasma, de
Levensverzekering
van mijn
Verbinding.
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18. Surface Testing
• Test ink for Surface Tension Measurement: 38mN/m
• Also available in bottles. Wait 30 seconds !!!
• Containing Formamid ! Toxic
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19. Surface Testing
• Test ink for Surface Tension Measurement:
• Dynetest - Wait !
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20. Measuring Contact Angle
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21. Adhesive Types
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22. Ink Cartridges
Packaging of ink: 1K & 2K Epoxy
Chemical resistance: leakage!
Adhesion & cleanliness
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23. Gas Filtration
Membrane Filters for Nitrogen Generators
• Nitrogen = Stikstof
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24. Electronics
Assembly of Chips on Chip-cards & ID-systems & RFID
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25. Application: CD & DVD Production
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26. UV Application – Glass Furniture
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27. Adhesive Types - ACRYLATES
• Toughened Acrylics applications
– Hinges for mirrors – shower doors
– Bank terminals - security
– Car sunroof
– Bus panels
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28. Adhesive Types - CYANOACRYLATES
• Applications:
– Medical: catheders –
blood tubes
– Rubber bonding
– Optical components
– Sporting goods – golf
sticks
– Wound repair –
Morticians
• DANGER !
– Skin & eyes – wear
gloves and glasses
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29. Medical Needles en Catheters
PP + Inox + 1K Epoxy
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30. MER - Mars Exploration Rovers - Pathfinder
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31. Conclusie
De enige weg om succesvol kleefprojecten
te realiseren is, dat het “Triumviraat” van
– de klant met zijn project
– de lijmfabrikant met zijn adhesief
– de machinefabrikanten met hun equipment
intensief en met kennis van zaken
samenwerkt, van in de designfase en rond
alle aspecten van de toepassing.
Succes verzekerd !
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32. Thanks for your attention,
and we welcome you in
’The Adhesive’s World’
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33. Any Questions ?
Q&A
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34. LCS – Your partner in Adhesive Bonding
LCS Belgium bvba
Consultancy
in
Adhesive Bonding Technology
Bergenstraat 84
B-3053 Haasrode – Leuven
+32-(0)16-38 90 45
+32-475-45 48 98
jan.lambrechts@consultant.com
www.lcs-adhesivebonding.com
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