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2024 Vol.56, Issue 5 Preview Page

Research Article

Effect of Acetone, Ethanol, Benzene and THF Washing Treatment on the Gas Grafting Hydrophobization Efficiency of Recycled Newspaper by Palmitoyl Chloride

아세톤, 에탄올, 벤젠 및 THF 세척 처리가 재생 신문지의 Palmitoyl Chloride에 의한 기상 소수화 효율에 미치는 영향

Jee Woong Rim1
,
Mi Hee Lee1
,
Yun Yeong Kwak1
,
Ji Ui Hong1
,
Jeong-Yong Ryu2†
임 지웅1
,
이 미희1
,
곽 윤영1
,
홍 지의1
,
류 정용2†
1Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chunchon, Republic of Korea
2Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chunchon, Republic of Korea
1강원대학교 산림환경과학대학 제지공학과, 대학원생
2강원대학교 산림환경과학대학 제지공학과, 교수
†Corresponding author: E-Mail: jyryu@kangwon.ac.kr (Address: Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chunchon, Republic of Korea)
30 October 2024. pp. 114-119
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Abstract

Paper is an eco-friendly material that can replace plastic, especially as environmental pollution worsens. Made from hydrophilic cellulose fiber, paper is easy to recycle but vulnerable to moisture. To address this, a grafting treatment was performed to impart hydrophobicity by reacting gaseous fatty acid chlorides with cellulose hydroxyl groups to form an ester bond. However, paper composed of recycled fibers has low gas graft hydrophobization efficiency with fatty acid chlorides. In this study, we investigated whether the gas graft hydrophobization reaction efficiency could be improved by washing recycled newspaper with four types of organic solvents: acetone, alcohol, benzene, and tetrahydrofuran (THF). The experiment results showed that washing handsheets made from deinked newspaper stock with these solvents did not improve gaseous hydrophobization efficiency. Similarly, washing the newspaper itself with the four different solvents did not enhance the efficiency. Therefore, it is concluded that the decrease in gas grafting hydrophobization efficiency of recycled paper is not due to foreign substances that can be dissolved in organic solvents covering the fiber surface.

Keywords
Gas grafting
acetone
alcohol
benzene
tetrahydrofuran
Hw-BKP
newspaper
References
1

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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 : 56
  • No :5
  • Pages :114-119
  • Received Date : 2024-06-21
  • Revised Date : 2024-10-15
  • Accepted Date : 2024-10-16
  • DOI :https://doi.org/10.7584/JKTAPPI.2024.10.56.5.114
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