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| Preparation and Performance of Cationic Modified Cellulose Nanofibril Based on Ternary Deep Eutectic Solvent System |
| Received:December 17, 2022 |
| DOI：10.11980/j.issn.0254-508X.2023.10.002 |
| Key Words:ternary deep eutectic solvent dialdehyde cellulose cationic modification cellulose nanofibril |
| Fund Project:国家自然科学基金（31901267）；山东省自然科学基金（ZR2022QE109）；山东省科技型中小企业创新能力提升工程项目（2022TSGC2202）；齐鲁工业大学（山东省科学院）科教产融合创新试点工程（2022PY042）。 |
| Author Name | Affiliation | Postcode | | HU Yaru | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | YANG Zhengbang | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | WANG Ying* | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | YANG Guihua | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | CHEN Jiachuan | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | JI Xingxiang | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | SUN Yueping | Rizhao Huatai Paper Co., Ltd., Rizhao, Shandong Province, 276500 | 276500 | | HE Ming | State Key Lab of Biobased Material and Green Papermaking/Key Lab of Pulp & Paper of Science and Technology of Education Ministry, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353
Rizhao Huatai Paper Co., Ltd., Rizhao, Shandong Province, 276500 | 276500 |
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| Abstract:In this study， acacia broadleaf wood pulp was used as the raw material. The cationic modified cellulose nanofibril （CCNF） was prepared by cationic modified pretreatment of sodium periodate oxidized dialdehyde cellulose （DAC） with choline chloride-glycerol-aminoguanidine hydrochloride ternary deep eutectic solvent （DES） system， combined with ultra-micro-comminution and high-pressure homogenization. The results showed that the crystallinity of CCNF prepared after DES cationization modification pretreatment was increased with the maximum crystallinity of 63.36% when pretreated for 60 min compared with that of CNF prepared without any modification treatment. The introduction of cationic groups significantly increased the Zeta potential from -18.0 mV to 53.4 mV， but DES pretreatment would destroy the internal structure of the fiber， thus reducing the stability of the suspension. |
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