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2021 Vol.53, Issue 6 Preview Page
A Study on Pulping of Paper Mulberry Bast Fiber Using Zinc Sulfate-Based Deep Eutectic Solvents

황산아연 기반 공융용매를 이용한 닥나무 인피섬유의 펄프화 연구

Cheol-Woo Lee1
,
Kwang-Seob Lee2
,
Jeong-Yong Ryu3
,
Kyoung-Hwa Choi4†
이철우 1
,
이광섭 2
,
류정용 3
,
최경화 4†
1Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University
2Changgang Institute of Paper Science and Technology, Kangwon National University
3Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University
4Changgang Institute of Paper Science and Technology, Kangwon National University
1강원대학교 산림환경과학대학 제지공학과, 대학원생
2강원대학교 창강제지기술연구소, 책임연구원
3강원대학교 산림환경과학대학 제지공학과, 교수
4강원대학교 창강제지기술연구소, 연구교수
†Corresponding author: E-Mail: bleaching@kangwon.ac.kr (Address: Changgang Institute of Paper Science and Technology, Kangwon National University, Chunchon, 24341, Republic of Korea)
30 December 2021. pp. 54-60
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Abstract

In this study, it was investigated whether deep eutectic solvents (DESs) can be produced through the eutectic reaction experiment between zinc sulfate (an inorganic compound) and three compounds including a choline chloride, histidine, and proline. As the results, it was found that the following two DESs can be manufactured: (1) the DES from the mixing of 1 mol zinc sulfate and 0.7 mol histidine (Zs-H DES) and (2) the DES from the mixing of 0.5 mol zinc sulfate and 1 mol proline (Zs-P DES). Also, in the further analysis, it was evaluated whether the pulping of paper mulberry bast fibers can be made using these two DESs. In particular, the effect of the mixing ratio of water in the two DESs on the pulping efficiency was investigated. As the results, it was found that the pulping efficiency by Zs-P DES was higher than that by Zs-H DES and that the pulping efficiency by two DESs was increased by the mixing water, It is notable that the efficiency was the highest when the mixing ratio of water was 30% for Zs-H DES and 50% for Zs-P DES.

Keywords
Deep eutectic solvent
zinc sulfate
histidine
proline
paper mulberry bast fiber
pulping
mixing ratio of water
pulping efficiency
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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 : 53
  • No :6
  • Pages :54-60
  • Received Date : 2021-12-04
  • Revised Date : 2021-12-21
  • Accepted Date : 2021-12-22
  • DOI :https://doi.org/10.7584/JKTAPPI.2021.12.53.6.54
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