Chemistries related to Silicone adhesives and release agent (ref 1: Dow-corning)
General structure of Silicone Polymers and MQ Resin.
Silicone Polymers
MQ Resin
The advantages and disadvantages of silicone adhesives
|
Advantages |
Disadvantages |
| Wide application temperature range | Poor solvent resistance |
| Moisture/UV resistance | Low adhesive strength |
| Excellent adhesion to low energy surfaces | Low Tack |
| Conformability | Pricey |
| Clean removability | Silicon Transfer issue |
| Electrical insulation | |
| Sound dampening |
Addition curing
Peroxide Curing
In this approach, the curing takes two steps: firstly the solvent should be removed by drying at 70C for 1-2mins because residue solvents can react with BPO and generate bubbles; secondly, silicone cured at 180-204C for 1-2mins.
Manufacturing process
Direct Coating
Transfer coating