is a plasma surface treatment
that is often referred to as air plasma. This is a low temperature process that is able to modify surfaces and increase their surface energy. Corona treatment
is conducted by applying a high voltage to small diameter electrode tips. This causes a corona discharge to be created which is a visible plasma curtain that has the ability to partially ionize the air around it. When a surface undergoes corona treatment, it passes under the corona discharge which alters the surface properties and raises the surface energy by bombarding the surface with ions. Corona treatment
is often used to enhance the adhesion properties of many materials such as plastics, nylon, vinyl, and paper.
and atmospheric plasma treatments
are a very similar process. They both use high voltage electrodes to ionize gas molecules that are used to modify surfaces. However, the plasma that corona treatment
creates has a smaller plasma density than atmospheric plasma
, meaning that fewer molecules get ionized making corona treatment a less effective surface modification method. Both corona treatments
and atmospheric plasma treatments can be used as an efficient way to treat surfaces on an industrial line.