Effects of Pulp Pre-treatment and Grinder Clearance on the Manufacturing Characteristics of Microfibrillated Cellulose

Seong Moon Yong; Gun Ho Kwak; Byoung-Uk Cho; Yong Kyu Lee; Jong Myoung Won

doi:10.7584/ktappi.2015.47.2.061

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Effects of Pulp Pre-treatment and Grinder Clearance on the Manufacturing Characteristics of Microfibrillated Cellulose 펄프의 전처리 및 그라인더 간격이 MFC 제조 특성에 미치는 영향

30 April 2015. pp. 61-69

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Abstract

A number of researches have been carried out regarding the utilization of nanocellulose(crystalline nanocellulose, microfibrillated cellulose, nanofibrillated cellulose) for the manufacture of various kinds of composites and functional products. However, only few research works on the manufacturing characteristics of nanocellulose could be found, although some companies started already the production of nanocellulose in commercial scale. However, the most important thing in commercializing of production and utilization of nanocellulose is to develop the economical and efficient process. Thus, this study was carried out in order to investigate the effects of refining, alkaline pre-treatment and grinder clearance on the characteristics of microfibrillated cellulose and energy consumption. There was no significant differences in crystalline index with the degree of microfibrillation. The initial fibrillation could be improved by refining pre-treatment, but its effect was not observed anymore since the fibrillation was done up to certain level by grinding. Refining pre-treatment did not improved the energy efficiency. Alkaline pre-treatment can be helpful because the swelling of pulp fiber will facilitate fibrillation. It was found that the decrease in grinder clearance was helpful to improve the energy efficiency.

Keywords

Microfibrillated cellulose

Refining

Alkaline treatment

Grinding

Clearance

Viscosity

Specific energy consumption

Energy efficiency

SEM

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 : 47
No :2
Pages :61-69
Received Date : 2015-04-09
Revised Date : 2015-04-22
Accepted Date : 2015-04-23
DOI :https://doi.org/10.7584/ktappi.2015.47.2.061

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

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Literature Cited