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Fundamental investigations regarding barrier properties of grafted PVOH layers

By Markus Schmid, Andreas Benz, Camelia Stinga, Daniel Samain and Klaus Peter Zeyer

Abstract

The current work focuses on fundamental investigations regarding the barrier properties of grafted PVOH layers produced by the Transfer Method. The layers (or papers) used for the different experiments were produced and grafted during the course of this work. Papers with different types of PVOH (different Mowiol types) were produced by coating. Experiments using different parameters (temperature, reaction duration, and concentration) were performed using the Transfer Method. Contact angle measurements and Cobb60 measurements were carried out on the grafted and untreated PVOH layers. Furthermore, the water vapour transmission rate of the PVOH layers was determined. The results of this work showed that the method of chromatogeny or chromatogenic chemistry improves the water vapour barrier properties of grafted PVOH layers enormously

Year: 2012
DOI identifier: 10.1155/2012
OAI identifier: oai:fraunhofer.de:N-221294
Provided by: Fraunhofer-ePrints
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