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Published on: October 4, 2019
Determination of the water vapor transmission rate of cellulose-based papers by multiple headspace extraction
Yi Dai1, Kang Yu2, Hong-Yue Zhu2
1School of Chemical Engineering, Guizhou Minzu University, Guiyang, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.
Abstract:
This paper presents a multiple headspace extraction (MHE) analysis technique to determine the water vapor transmission rate of cellulose-based papers. The water vapor passing through the sample in a closed headspace vial is determined by MHE-gas chromatography. The results show that the employed method offers good precision (the relative standard deviation < 3.49 %) and good accuracy. The method is rapid and accurate, and is promising for the determination of the water vapor transmission rate of cellulose-based papers in future studies.
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