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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알칼리 처리가 제지용 화학펄프의 특성에 미치는 영향

Effects of Alkaline Treatment on the Characteristics of Chemical Pulps for Papermaking

  • 원종명 (강원대학교 산림환경과학대학 제지공학과) ;
  • 김민현 (강원대학교 산림환경과학대학 제지공학과)
  • Won, Jong-Myoung (Dept. of Paper Science & Engineering, College of Forest Environmental Sciences, Kangwon National University) ;
  • Kim, Min-Hyun (Dept. of Paper Science & Engineering, College of Forest Environmental Sciences, Kangwon National University)
  • 투고 : 2011.09.02
  • 심사 : 2011.09.18
  • 발행 : 2011.09.30
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초록

The effects of alkaline treatment on the WRV, crystalline structure and sheet structure of softwood and hardwood bleached kraft pulp were investigated. Sodium hydroxide and sodium carbonate were used as chemicals for alkaline treatment and two levels of alkali dosage (5%, 10%) were applied respectively. Alkali treated and untreated pulp were refined to three levels (550, 450 and 350 mL CSF). WRV of the alkali treated pulps depended on the alkaline type and concentration. It was found that the crystalline structures of softwood and hardwood pulp were not changed by refining. Sodium carbonate and lower concentration of sodium hydroxide treatment did not caused any modification of cellulose crystalline structure, while higher concentration of sodium hydroxide treatment caused the partial modification of cellulose crystalline structure. Alkaline treatment of hardwood bleached kraft pulp led to the shrinkage of fiber diameter and bulky structure of sheet. Alkaline treatment of softwood bleached kraft pulp did not cause the significant change in fiber shrinkage and bulk of sheet.

키워드

참고문헌

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