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

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Effect of Shear Condition on Washless Polyelectrolytes Multilayering Treatment on GCC

전단 조건이 중질탄산칼슘의 무세척 고분자전해질 다층흡착 처리에 미치는 영향

  • Lee, Jegon (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Sim, Kyujeong (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Lee, Hak Lae (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Youn, Hye Jung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
  • 이제곤 (서울대학교 농업생명과학대학 산림과학부) ;
  • 심규정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Received : 2014.10.07
  • Accepted : 2014.10.16
  • Published : 2014.10.30
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Abstract

To find a practical application approach of polyelectrolyte multilayering (PEM) on inorganic filler, we introduced PEM process without washing step and investigated the effect of shear condition on the washless PEM treatment of ground calcium carbonate (GCC). Washless multilayering on GCC was conducted under various shear conditions such as stirring, homogenization, and ultrasonication. Highly charged polyelectrolytes combination of polydiallyldimethylammonium chloride (PDADMAC) and poly sodium 4-styrene sulfonate (PSS) and low charged polyelectrolytes combination with cationic starch and anionic polyacrylamide (PAM) were compared. In the case of highly charged polyelectrolytes combination, shear conditions did not affect the zeta potential and the particle size of treated GCC. However, the modified GCC particles with low charged polyelectrolytes were more dispersed under higher shear condition while maintaining the zeta potential. In addition, GCC was successfully modified through laboratory inline washless polyelectrolyte multilayering system which consists of homogenizers and pumps.

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References

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