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논문 기본 정보

자료유형
학술저널
저자정보
Seokho Lee (Seoul National University) Hyeonji Park (Seoul National University) Wanhee Im (Seoul National University) Heetae Park (Seoul National University) Hak Lae Lee (Seoul National University) Hye Jung Youn (Seoul National University)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제52권 제5호(통권 제196호)
발행연도
2020.10
수록면
101 - 109 (9page)
DOI
10.7584/JKTAPPI.2020.10.52.5.101

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초록· 키워드

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Pulp fibers were pretreated with the mixture of endoglucanase and endoxylanase to facilitate the nanofibrillation. The effects of the combined pretreatment of the mixed enzymes and beating were investigated in terms of fiber length, fines content, freeness, water retention value (WRV), cupriethylenediamine (CED) viscosity, and the viscosity of cellulose nanofibrils (CNF) suspension. Compared to untreated and pure enzyme-treated pulps, the mixed enzyme-treated pulp showed higher fiber length and lower fines content. The CED viscosity of fibers was mainly affected by endoglucanase. The beating treatment on the enzyme pretreated pulp increased fines content and WRV greatly, which means that fiber structure was sufficiently weakened by enzyme treatment. In particular, when pulp was treated with enzyme mixture and beaten, the WRV and freeness were higher than single component-enzyme treatment. Depending on the enzyme composition and beating treatment, the low shear viscosity of the resultant CNF suspension exhibited different trend. It revealed that the use of endoenzyme mixture is beneficial to decompose pulp fibers and may control the aspect ratio of CNF.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2020-586-001591509