Fibrillation Characteristics of Cellulose Nanofibrils with Water Retention Value Method

Woo-Yong Song; Su Bin Jeong; So Young Juhn; Soo-Jeong Shin

doi:10.7584/JKTAPPI.2019.02.51.1.128

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Fibrillation Characteristics of Cellulose Nanofibrils with Water Retention Value Method 섬유 수분 보수력 측정을 통한 셀룰로오스 나노섬유의 피브릴화 특성 평가

28 February 2019. pp. 128-133

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Abstract

When water retention value (WRV) method was applied in cellulose nanofibril characterization for fibrillation, there were problems from plugging or passing through filter by cellulose nanofibrils. To solve these problem, a two step WRV method was proposed. Pulp mats were formed with a commercial chemical pulp by 1^st WRV process and cellulose nanofibril suspensions were run for 2^nd WRV process. There was no plugging or passing problems with pulp mat formed with more than 1.0 of pulp (oven-dried basis). With different centrifugal force and times, optimum condition for 2^nd WRV process was 6,000 G with 40 min with constant WRV values. Cellulose nanofbiril with more carboxymethyl group had higher WRV value than other from degree of substitution 0.2 to 0.4. Fibrillation characteristics of cellulose nanofibrils was also compared by TEM image analysis and reached similar result between WRV and TEM image analysis.

Keywords

Water retention value

cellulose nanofibril

TEM

cellulose nanofibril viscosity

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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 : 51
No :1
Pages :128-133
Received Date : 2019-01-24
Revised Date : 2019-02-22
Accepted Date : 2019-02-23
DOI :https://doi.org/10.7584/JKTAPPI.2019.02.51.1.128

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

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Literature Cited