펄프종이기술 (Journal of Korea Technical Association of The Pulp and Paper Industry)

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
권호 표지

고분자전해질의 LbL multilayering 시 pH와 염 농도 조건에 따른 섬유의 전기화학적 특성

Electrochemical Properties of Pulp Fiber with LbL Multilayering by Polyelectrolyte at the Different pH and Salt Concentration

  • 류재호 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이성린 (서울대학교 농업생명과학대학 산림과학부) ;
  • 진성민 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Ryu, Jae-Ho (Dept. of Forest Sciences, Seoul National University) ;
  • Lee, Sung-Rin (Dept. of Forest Sciences, Seoul National University) ;
  • Chin, Seong-Min (Dept. of Forest Sciences, Seoul National University) ;
  • Youn, Hye-Jung (Dept. of Forest Sciences, Seoul National University)
  • 발행 : 2008.12.31
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초록

Electrochemical properties of pulp fiber could be modified by LbL(Layer-by-Layer) multilayering. Salt concentration and pH affect the conformation and ionization degree of polyelectrolyte. In this study, therefore, we intended to evaluate the effect of pH and salt concentration in polyelectrolyte multilayering on the electrochemical properties of pulp fiber. The pH of the stock was varied to 4, 7, and 10. Salt concentration was controlled at 0.001, 0.003, and 0.005 M of NaCl. Higher zeta potential was obtained when pulp fibers were multilayered at the condition of higher pH and higher salt concentration. The final zeta potential of pulp fiber after multilayering was dependent on the adsorption ratio of polyelectrolyte and the initial zeta potential of fibers.

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