Glossary of surface technology
Plasma polymerisation
Coating process in which organic molecules polymerise in the plasma and deposit on a substrate. Since plasma polymerisation is initiated by breaking up the bonds in the monomer molecules, also saturated bonds can be polymerised by means of the plasma. Generally, plasma polymers have a less regular molecular structure and a higher crosslinking level than analogue polymers produced in the liquid phase. By means of plasma treatment, a wide range of surface coatings can be implemented:
- PTFE-like coats
- Generation of hydrophobic coats by means of HMDSO
- Generation of hydrophilic coats with vinyl acetate
- Epilamisation by polymerisation of fluorinated monomers (CF4)
- Plasma-supported chemical vapour deposition processes (PACVD, PECVD)
- Barrier coats to avoid diffusion, permeation
- Decorative coats
Examples
