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http://dx.doi.org/10.7584/ktappi.2015.47.5.104

Factors Affecting Z-direction Penetration of PVAm Solution into Paper  

Choi, Do-Chim (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Won, Jong Myoung (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Cho, Byoung-Uk (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.47, no.5, 2015 , pp. 104-111 More about this Journal
Abstract
Factors influencing penetration of PVAm solution into paper during impregnation were investigated with ultrasonic Penetration Evenness Analyzer (PEA). Paper structure was varied by changing basis weight, freeness of pulp, calendering, and filler addition, and hydrophobicity of paper was varied by adding AKD. In addition, the viscosity of PVAm solution was varied by changing the concentration of PVAm solution. Important factors influencing penetration of PVAm solution into paper were found to be the pore structure and the hydrophobicity of paper, and the viscosity of PVAm solution. Pore structure of paper could be controlled by refining degree and filler addition and hydrophobicity of paper could be controlled by internal sizing. Denser structure of paper, higher hydrophobicity and higher liquid viscosity slowed down the penetration of PVAm solution into paper.
Keywords
PVAm (polyvinylamine); ultrasonic Penetration Evenness Analyzer (PEA); liquid penetration; impregnation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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