Measuring solvent barrier properties of paper

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Roger Bollström, Jarkko J Saarinen, Jukka Räty, Martti Toivakka
Publisher: IOP PUBLISHING LTD
Publication year: 2012
Journal: Measurement Science and Technology
Journal acronym: MEAS SCI TECHNOL
Volume number: 23
Issue number: 1
Number of pages: 8
ISSN: 0957-0233
eISSN: 1361-6501


Abstract

New methods for measuring barrier properties against solvents, acids and bases on dispersion coated paper were developed and investigated. Usability, reliability and repeatability were compared both between the new methods and with the standardized method for measuring barrier properties against water vapor. Barrier properties could be measured with all methods and the results obtained by the different methods were in correlation with each other. A qualitative method based on a trace color provided an indicative result, whereas further developed methods also took into account the durability. The effective barrier lifetime could be measured by measuring the conductivity through the substrate as a function of time, or by utilizing a glass prism where the change in refractive index caused by penetrated liquid was monitored, also as a function of time. Barrier properties against water and humidity were also measured and were found not to be predictors for barrier properties against either solvents, or acids or bases, which supports the need to develop new methods.


Keywords

barrier, conductivity, paper, prism, solvent, trace color

Last updated on 2019-18-07 at 04:14