Study on the Quaternization Reaction Conditions for Cationic Cellulose Nanofibril

Lee, Ji Young; Kim, Kyung Min; Kim, Su Ho; Jo, Hae Min; Kim, Chul‐Hwan

doi:10.7584/jktappi.2019.12.51.6.144

Cited by 6 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Four types of anionic NFC samples, manufactured from C-BSP and Hw-BKP, were taken at a micro-grinding pass number of five and seven (hereafter referred to as the pass number), respectively, as shown in Table 1. Quaternization of anionic NFC to prepare cationic NFC Cationic NFC was prepared from anionic NFC via quaternization of GMA (Chaker and Boufi 2015;Lee et al 2019). The water was removed from the anionic NFC slurry using a centrifuge (LaboGene 1248, Gyrozen Co., Ltd., Republic of Korea), and solvent exchange was performed twice using DMAc.…”

Section: Preparation Of Anionic Nfc From C-bsp and Hw-bkpmentioning

confidence: 99%

“…After the addition of 30% GMA, the zeta potential of cationic NFC was reversed for Hw-BKP. The fiber width decreased, and the low-shear viscosity of cationic NFC increased as the nanofibril content increased (Saarikoski et al 2012;Grüneberger et al 2014;Lee et al 2019). Because nanofibrils have a higher specific surface area than microfibrils, more GMA is required to electrostatically induce charge reversal in anionic NFC with higher nanofibril content (Grüneberger et al 2014).…”

Section: Zeta Potential and Ft-ir Analysis Of Nfcsmentioning

confidence: 99%

See 1 more Smart Citation

Manufacture and characterization of cationic nano-fibrillated cellulose from cotton pulp

Lee

2023

BioRes

View full text Add to dashboard Cite

The applicability of cotton-bleached soda pulp (C-BSP) was investigated as a raw material for manufacturing cationic nano-fibrillated cellulose (NFC) via quaternization of anionic NFC using glycidyl-trimethyl-ammonium chloride (GMA). The anionic NFC was prepared by beating and micro-grinding C-BSP, and quaternization was performed post treatment to induce a charge reversal in anionic NFC. The characteristics of cationic NFC manufactured using C-BSP and hardwood-bleached kraft pulp (Hw-BKP) as a control were analyzed. Relatively higher mechanical energy was required to prepare anionic NFC from C-BSP than that from Hw-BKP. Fourier transform infrared and zeta potential analyses results showed that quaternization by GMA post treatment electrostatically induced charge reversal in anionic NFC. However, GMA did not affect the fiber width and viscosity of the cationic NFCs. It was found that cationic NFC could be manufactured via quaternization of anionic NFC manufactured from C-BSP using less GMA than that for Hw-BKP.

show abstract

Section: Preparation Of Anionic Nfc From C-bsp and Hw-bkpmentioning

confidence: 99%

Section: Zeta Potential and Ft-ir Analysis Of Nfcsmentioning

confidence: 99%

Manufacture and characterization of cationic nano-fibrillated cellulose from cotton pulp

Lee

2023

BioRes

View full text Add to dashboard Cite

show abstract

“…Cationic NFC was made from anionic NFC via the quaternization reaction described by Chaker and Boufi (2015) and Lee et al (2019). The water was removed from an anionic NFC slurry using a centrifuge (LaboGene 1248, Gyrozen Co., Ltd., Gimpo, Republic of Korea), and the solids were solvent-exchanged twice using DMAC.…”

Section: Preparation Of Nfcsmentioning

confidence: 99%

Multi-layer barrier coating technology using nano-fibrillated cellulose and a hydrophobic coating agent

Kim

Lee

et al. 2022

BioRes

Self Cite

View full text Add to dashboard Cite

A multi-layer barrier coating technology was developed using nano-fibrillated cellulose (NFC) alongside a hydrophobic, paraffin-free biowax for manufacturing an eco-friendly functional packaging paper. Anionic NFC was prepared by isolating hardwood-bleached kraft pulp (Hw-BKP) using a micro-grinder, and cationic NFC was prepared by the quaternization reaction of the anionic NFC. Thereafter, a three-layer barrier-coated paper was manufactured using cationic and anionic NFCs and biowax. The air permeability and water vapor transmission rate (WVTR) of the three-layer barrier-coated paper were measured, and its coverage and coating layer structure were observed by scanning electron microscopy (SEM). The air permeability of the three-layer barrier-coated paper was more than 15,000 s and those WVTR was 67.1 g/m2/day. Its coverage and surface were considerably uniform and smooth. Thick and effective barrier coating layers were formed as indicated by SEM images. Therefore, it was concluded that a multi-layer barrier-coated paper with considerably high barrier properties could be produced using cationic and anionic NFCs with high gas barrier properties and biowax with high moisture barrier properties. Further, the structure could be used as a functional packaging paper with high barrier properties.

show abstract

Cationization of Pulp Fibers as Pretreatment and Preparation of Cationic Cellulose Nanofibrils

임완희¹,

Park²,

Simyeop³

et al. 2020

J. of Korea TAPPI

View full text Add to dashboard Cite

Study on the Quaternization Reaction Conditions for Cationic Cellulose Nanofibril

Cited by 6 publications

References 12 publications

Manufacture and characterization of cationic nano-fibrillated cellulose from cotton pulp

Manufacture and characterization of cationic nano-fibrillated cellulose from cotton pulp

Multi-layer barrier coating technology using nano-fibrillated cellulose and a hydrophobic coating agent

Cationization of Pulp Fibers as Pretreatment and Preparation of Cationic Cellulose Nanofibrils

Contact Info

Product

Resources

About