Effect of a Combined Pretreatment of Beating and Carboxymethylation on Properties and Nanofibrillation of Pulp Fibers

Wanhee Im; Seakho Lee; Hak Lae Lee; Hye Jung Youn

doi:10.7584/JKTAPPI.2017.10.49.5.12

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Effect of a Combined Pretreatment of Beating and Carboxymethylation on Properties and Nanofibrillation of Pulp Fibers 고해와 카르복시메틸화의 복합 전처리가 펄프의 특성 및 셀룰로오스 나노피브릴 제조에 미치는 영향

30 October 2017. pp. 12-19

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Abstract

Cellulose nanofibrils have a big attraction because of unique properties such as high aspect ratio and specific surface area, high mechanical stiffness, biodegradability, and sustainability. One of limitations associated with the application of cellulose nanofibrils is the high energy demand during a nanofibrillation process. Various pretreatments have been proposed to reduce the energy consumption. In this study, a combined pretreatment of beating and carboxymethylation was investigated as a pretreatment to make the fibrillation easy and to reduce energy consumption. The sequence and severity of the pretreatment were controlled, and pulp properties and nanofibrillation degree were evaluated. The combined pretreatment of carboxymethylation and beating was more effective in terms of energy saving than the single carboxymethylation chemical treatment. However, economic feasibility of the combined pretreatment to produce cellulose nanofibrils should be evaluated in a mill scale.

Keywords

Pretreatment

carboxymethylation

mechanical pretreatment

cellulose nanofibrils

References

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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 : 49
No :5
Pages :12-19
Received Date : 2017-09-18
Revised Date : 2017-10-18
Accepted Date : 2017-10-19
DOI :https://doi.org/10.7584/JKTAPPI.2017.10.49.5.12

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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Literature Cited