Sustainable Pretreatment with Atmospheric Pressure Plasma
Alternative methods provide longer and stronger adhesion of coatings.
When it comes to achieving safe and stable adhesion of coatings and bondings on aircraft parts made of plastic, metal and composite, atmospheric pressure plasma has become the green and cost-saving pretreatment alternative to conventional methods.
Plasma is based on a simple physical principle that, by supplying energy, states of matter change from solid to liquid and liquid to gas. If further energy is added to a gas, it becomes ionized—the electrons gain kinetic energy and leave their atomic shells.
Thus, free electrons, ions and molecular fragments are formed, and the gas turns into a plasma state which is also known as the “4th state of matter.” Because of its instability, however, this state could hardly be used in industrial production at normal pressure.
Twenty years ago, German plasma system manufacturer Plasmatreat developed an atmospheric pressure plasma jet technology called Openair-Plasma that opened up new possibilities for surface pretreatment.
With the invention of plasma nozzles, it was possible to integrate in-line an almost never used state of matter for industrial production processes, and make plasma usable for large-scale pretreatment of material surfaces under normal atmosphere. Now this technology is used in virtually all industrial sectors worldwide.