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| Study on Silanization Modification of Cellulose Nanofibers and Its Emulsifying Property in Pickering Emulsion |
| Received:April 20, 2024 Revised:May 03, 2024 |
| DOI：10.11981/j.issn.1000-6842.2025.01.68 |
| Key Words:cellulose nanofiber;silane;Pickering emulsion;stability |
| Fund Project:国家重点研发计划资助项目（2022YFC2105503）。 |
| Author Name | Affiliation | Postcode | | LIU Wenli | Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 | | JIA Lingyun | Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 | | FAN Rong | Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 | | WANG Wenxue | Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 | | LIU Pengtao* | Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 |
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| Abstract: |
| Cellulose nanofibers （CNF） were silanization modified by hexadecyl trimethoxysilane （HDS）， and the effect of mass fraction of silanized CNF （H-CNF） on its emulsification performance and prepared Pickering emulsion properties was investigated. The structure of H-CNF was characterized by X-ray diffraction pattern and Fourier transform infrared spectroscopy， and the particle size distribution， micro morphology and Zeta potential of Pickering emulsion droplets were measured. The stability of Pickering emulsion was characterized by milk fat index （CI）. The results showed that when the mass ratio of HDS and CNF was 5∶1 during silanization modification， the three-phase contact angle of prepared H-CNF was （87.6 ± 0.6）°， and the wetting performance was moderate. With the increase of H-CNF mass concentration from 1.0% to 2.5%， the Zeta potential of Pickering emulsion droplets decreased， the particle size of emulsion droplets decreased significantly， CI decreased， and the stability of Pickering emulsion increased. |
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