Topic: Plasma polymerization. Long-term protection against bondline corrosion. IFAM plasma coating. Silica-organic nano-coatings.
Plasma polymerization: reliable protection against bondline corrosion
Corrosion
creep along adhesive and sealant bondlines due to moisture
penetration is a typical phenomenon in mating surfaces.
Even
good adhesion of the adhesive or sealant cannot completely rule out
the risk of oxidative attack on the substrate itself.
Plasmatreat
collaborated with the Fraunhofer Institute for Manufacturing
Technology and Advanced Materials (IFAM) to develop the atmospheric
plasma coating PlasmaPlus.
This is applied to the substrate at the same time as the plasma, thus
effectively protecting the base material from bondline corrosion.
Uncoated engine flange surface
Engine flange surface coated with PlasmaPlus
Even
ultra-thin, nano-scale layers of this silica-organic coating achieve
the desired
long-term corrosion protection.
This
application has already been used successfully in industry for
several years to manufacture electrohydraulic power steering systems
(EHPS).
Compared
with uncoated components, parts treated with plasma polymerization
achieve significantly better resistance to environmental factors.
