Abstract

One particularly interesting method for improving the barrier properties of PET bottles is the application of a coating by plasma polymerization. This paper gives a short overview of different existing methods. The main focus of the paper lies on the description of a newly developed plant suitable to improve the permeation barrier properties of hollow bodies made of plastics by application of an exterior thin coating made by microwave assisted plasma polymerization.

Key Words: permeation, plasma polymerization, microwave, barrier improvement, hollow bodies, PET bottles, interior coating, exterior coating