Use our plasma
system for adhesion improvement
When plasma is used to
functionalize a surface prior to bonding, the resulting bonds will display a
strong adhesion improvement. Plasma can be used on
a wide variety of materials: metals, glass, ceramics, and even natural
materials such as woods and textiles respond very well to plasma functionalization.
For several our customers, it is especially important that many polymers with
typically “non-stick” surfaces can be successfully glued and bonded following
plasma treatment.
This surface
functionalization achieved by plasma processing relies on a combination of
effects: ultra-fine surface cleaning from organic contaminants,
modification of the surface topography, modification of the crystalline
structure of the surface layer, and deposition of functional chemical groups.
Metals can be cleaned of hard oxides, restoring the sheer metal surface.
The atmospheric pressure of
our plasma systems is generated using air or typical industrial gases such as
hydrogen, nitrogen or oxygen. For our customers, this means a huge improvement
regarding cost-efficiency, process safety and environmental compatibility, as
expensive vacuuming equipment or wet chemistry are simply no longer necessary.
Fast processing speeds make our system suitable for a wide variety of
industrial applications.
The table below shows a
comparison of the pull off strength of bonding untreated plastics and the same
plastics with previous plasma treatment with 2K epoxy adhesive. The comparison
shows a significant improvement of the bonding:
Advantages of plasma
processing
Plasma cleans, strengthens
and chemically functionalizes the surface. All these effects, which are
required for improved adhesive bonding, are achieved simultaneously in a single
step:
-
Ultra-fine cleaning, no residues
-
Gentle, non-destructive surface
treatment
-
No wet chemistry
-
Air or cheap non-toxic working
gases
-
Environmental friendliness
-
No expensive vacuum equipment
-
Fast processing speeds
-
Easy integration into existing
production lines
|