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Effects of relative humidity on the physical properties of PVA impregnated paper  

Kim, Tae-Young (KOMSCO, Technical Research Institute)
Joung, Yang-Jin (KOMSCO, Technical Research Institute)
Kim, Du-Ki (KOMSCO, Technical Research Institute)
Heo, Yong-Dae (KOMSCO, Technical Research Institute)
Sung, Yong-Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.42, no.3, 2010 , pp. 37-42 More about this Journal
Abstract
The properties of paper are very susceptible to moisture content originated from relative humidity. This propensity of PVA impregnated paper was investigated in this study. Especially the hardening effect of borax treatment after PVA impregnation on the response of paper sample to the relative humidity was evaluated. When the moisture content was increased with the relative humidity, tensile stretch and tear resistance were increased while tensile strength and stiffness were decreased. A great increase in folding endurance of PVA impregnated paper sample was found at the higher relative humidity. The borax treatment could reduce the response of PVA impregated paper to the relative humidity.
Keywords
Relative humidity; Paper properties; PVA impregration; Borax treatment; Folding endurance;
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