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Effect of Pulp Type and Fines Content in a Stock on the Polyelectrolyte Multilayering onto Pulp Fiber  

Chin, Seong-Min (Dept. of Forest Sciences, Seoul National University)
Ryu, Jae-Ho (Dept. of Forest Sciences, Seoul National University)
Lee, Sung-Rin (Dept. of Forest Sciences, Seoul National University)
Youn, Hye-Jung (Dept. of Forest Sciences and Research Institute for Agriculture and Life Sciences, Seoul National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.40, no.3, 2008 , pp. 15-22 More about this Journal
Abstract
Properties of pulp fibers can be modified by LbL multilayering technology. We evaluated the effect of stock composition on the polyelectrolyte multilayering performance of pulp fibers in this study. Stock composition was varied with pulp type and fines content. Three types of pulp-Hw-BKP, BCTMP and KOCC-were treated with polyelectrolytes of poly-DADMAC and PSS. Fines content of stock were controlled at 0, 10, 20, 30, and 40%. Zeta potential of pulp fibers and charge demand of filtrate were evaluated. The highest adsorption ratio was obtained for BCTMP because of its shortest fiber length and highest specific surface area. Higher fines content in the stock increased the adsorption ratio of polyelectrolyte onto pulp fiber and it required a higher amount of polyelectrolyte for charge neutralization. For the pulp stock with higher fines content, a higher level of polyelectrolyte and the increased layer number were required to modify and stabilize the electrochemical properties of pulp fibers.
Keywords
polyelectrolyte multilayering; pulp type; fines content; zeta potential; charge demand; adsorption ratio;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 4
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