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

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
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양이온성으로 표면 개질된 nanocoated GCC의 보류 성능

Retention Performance of Nanocoated GCC with Positive Charge

  • 이제곤 (서울대학교 농업생명과학대학 산림과학부) ;
  • 심규정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • 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)
  • 투고 : 2013.10.01
  • 심사 : 2013.10.19
  • 발행 : 2013.10.30
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초록

In this study, we investigated retention characteristics of nanocoated GCC that was positively modified by Layer-by-Layer (LbL) multilayering process. Three layers were formed onto GCC particles with poly-DADMAC/PSS/poly-DADMAC (PD3) and C-starch/A-PAM/C-starch (CS3) systems, respectively. Untreated GCC, PD3 GCC (strongly positive charge) and CS3 GCC (weekly positive charge) were retained on pulp fibers under single retention system or microparticle retention system conditions. In single retention system, PD3 particles were not affected by cationic retention aid due to their strong positive charge, whereas CS3 particles reacted with cationic retention aid due to anionic sites on the surface of the weekly positive particles. In a microparticle retention system, positively modified GCC (PD3 and CS3) showed higher retention level than untreated GCC at the same dosage of retention aid. The cationic surface of GCC particles were more reacted with bentonite so the deposition onto pulp fibers was improved. In addition, the retention level of nanocoated GCC was increased with maintaining good formation.

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참고문헌

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피인용 문헌

  1. 전단 조건이 중질탄산칼슘의 무세척 고분자전해질 다층흡착 처리에 미치는 영향 vol.46, pp.5, 2013, https://doi.org/10.7584/ktappi.2014.46.5.051
  2. Strengthening effect of polyelectrolyte multilayers on highly filled paper vol.33, pp.1, 2013, https://doi.org/10.1515/npprj-2018-3010