Atmospheric Pressure Plasma Liquid Deposition – A Novel Route to Barrier Coatings

Abstract

A novel path to barrier deposition at atmospheric pressure. By injecting liquid silicones into a non‐equilibrium atmospheric pressure plasma, a variety of silica coatings have been deposited. The reactivity of the precursor was found to control the reaction dynamics and powder free coatings were deposited under selected conditions. The resultant coatings provided significant reductions in oxygen transmission rates on plastic substrates.