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2018 Vol.50, Issue 2 Preview Page
Effects of Grinding-Homogenizing Treatments on the Characteristics of MFC

그라인딩-호모게나이징 처리가 MFC 제조 특성에 미치는 영향

Jae-Jun Park
,
Kyoung-Hwa Choi1‡
,
Byoung-Uk Cho†
박재준
,
최경화 1‡
,
조병욱 †
Program of Paper Science & Engineering, Division of Forest Material Science and Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon
1Changgang Institute of Paper Science and Technology, Kangwon National University, Chuncheon
강원대학교 산림환경과학대학 산림응용공학부 제지공학전공
1강원대학교 창강제지기술연구소
†Corresponding author: E-Mail: bucho@kangwon.ac.kr
‡Co-corresponding Author: E-Mail: bleaching@kangwon.ac.kr
30 April 2018. pp. 60-67
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Abstract

Effects of grinding and grinding-homogenizing treatments on MFC (micro-fibrillated cellulose) manufacturing characteristics were compared. MFC was manufactured by two different mechanical processes: (1) Grinding treatment only (Grinding) and (2) Homogenizing treatment after 5 passes of grinding (Grinding-Homogenizing). And then characteristics of MFCs produced were evaluated. It was found that the grinding-homogenizing treatment can improve fibrillation efficiency compared with the grinding treatment. The grinding-homogenizing treatment produced MFC with higher slurry viscosity and WRV than that with the grinding. In addition, the CED viscosity and the crystallinity index of MFC produced with the grinding-homogenizing process were higher than that with the grinding process at a given MFC slurry viscosity, implying that a high quality MFC could be produced with the grinding-homogenizing process. No distinct differences in crystalline and chemical structure were observed between the MFCs produced with different processes and different pass numbers.

Keywords
Micrifibrillated cellulose (MFC)
grinding
homogenizing
two-stage process
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 50
  • No :2
  • Pages :60-67
  • Received Date : 2018-04-10
  • Revised Date : 2018-04-23
  • Accepted Date : 2018-04-25
  • DOI :https://doi.org/10.7584/JKTAPPI.2018.04.50.2.60
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