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

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

보류시스템, 고분자 전해질 분자량과 약품투입순서에 따른 보류, 탈수, 지합, 파괴인성의 변화

Retention, Drainage, Formation, and Fracture Toughness Depending on Retention System, Molecular Weights of Polyelectrolytes and Dosage Sequences

  • 채희재 (충북대학교 농업생명환경대학 목재.종이과학과) ;
  • 김문성 (충북대학교 농업생명환경대학 목재.종이과학과) ;
  • 박창순 (충북대학교 농업생명환경대학 목재.종이과학과) ;
  • 박종문 (충북대학교 농업생명환경대학 목재.종이과학과)
  • Chae, Hee-Jae (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science) ;
  • Kim, Mun-Sung (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science) ;
  • Park, Chang-Soon (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science) ;
  • Park, Jong-Moon (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Dept. of Wood and Paper Science)
  • 발행 : 2009.06.30
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초록

In order to produce high quality paper at the lowest cost in high speed, typically various polyelectrolytes as retention aids were used. Retention systems such as single polymer system, dual polymer system, and microparticle system were used. The objective of this study was to analyze the changes of retention, drainage, formation and fracture toughness depending on types of retention system, molecular weight of C-PAM and dosage sequences of agents. When single polymer system was applied, retention was increased with poor formation and drainage. When common microparticle system(C-PAM/bentonite) was used, high molecular weight PAM gave high retention and fast drainage, but poor formation. When the microparticle system with reverse dosage sequence(bentonite/C-PAM) was used, low molecular weight PAM gave high retention, fast drainage and good formation. When various retention agents were applied, fracture toughness was increased than that of blank. When using high molecular weight PAM and consequently causing excessive flocculation, fracture toughness was decreased.

키워드

참고문헌

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