微射流均质制备纤维素纳米微纤及其稳定的Pickering乳液特性

阿地兰·阿不都热依木; 吴雪; 刘斌

doi:10.14028/j.cnki.1003-3726.2025.24.394

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微射流均质制备纤维素纳米微纤及其稳定的Pickering乳液特性

研究论文 | 更新时间：2025-04-29

- 微射流均质制备纤维素纳米微纤及其稳定的Pickering乳液特性
- The Properties of Pickering Emulsions Stabilized by Cellulose Nanofibrils through Microfluid Homogenization
- 高分子通报 2025年38卷第5期页码：782-789
- 作者机构：
  
  北京工商大学计算机与人工智能学院，北京 100048
- 作者简介：
  
  *吴雪，E-mail: wuxue@th.btbu.edu.cn
- 基金信息：
  
  国家重点研发计划(2016YFD0400305)
- DOI：10.14028/j.cnki.1003-3726.2025.24.394
  中图分类号：
- 收稿日期：2024-12-29，
  
  录用日期：2025-01-27，
  
  网络出版日期：2025-03-19，
  
  纸质出版日期：2025-05-20
- 稿件说明：
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阿地兰·阿不都热依木, 吴雪, 刘斌. 微射流均质制备纤维素纳米微纤及其稳定的Pickering乳液特性. 高分子通报, 2025, 38(5), 782–789.

Abdirym A.; Wu, X.; Liu, B. The properties of pickering emulsions stabilized by cellulose nanofibrils through microfluid homogenization. Polym. Bull. (in Chinese), 2025, 38(5), 782–789.
阿地兰·阿不都热依木, 吴雪, 刘斌. 微射流均质制备纤维素纳米微纤及其稳定的Pickering乳液特性. 高分子通报, 2025, 38(5), 782–789. DOI： 10.14028/j.cnki.1003-3726.2025.24.394.

Abdirym A.; Wu, X.; Liu, B. The properties of pickering emulsions stabilized by cellulose nanofibrils through microfluid homogenization. Polym. Bull. (in Chinese), 2025, 38(5), 782–789. DOI： 10.14028/j.cnki.1003-3726.2025.24.394.

摘要

应用新型微射流均质阀在较低能量输入条件下(110 MPa，3次)处理微米级纤维素水分散液，以获得纤维素纳米纤维(CNFs)，并研究其溶胀、粒径分布和形貌等特性。CNFs纤丝与水的相互作用增强，同时相互缠绕、交织或连接，当浓度大于1.2 wt%时，CNFs在水中形成稳定的立体网状结构分布。考察了CNFs浓度对CNFs稳定的O/W型Pickering乳液的油滴大小、乳液稳定性和流变特性等的影响。CNFs颗粒在水中稳定的空间网络结构能够捕获小于自身粒径的细小油滴，并限制油滴的运动与聚集，在油水界面形成不可逆吸附；乳液的表观黏度随CNFs浓度升高而增加；2.0 wt% CNFs稳定的O/W型Pickering乳液的粒径指标

]

和

]

为2.27和4.07 μm，乳液的空间网络结构完全限制了油滴的运动与聚集，形成完全稳定的乳液状态，在40天的储存过程中表现出良好的稳定性。

Abstract

Cellulose Nanofibrils (CNFs) were prepared from micrometer-grade cellulose through a new microfluid homogenizing valve which process conditions were relatively low (110 MPa for 3 times). The swelling properties

particle size distribution

and profiles of CNFs were studied. The interaction between CNFs and water became stronger. Simultaneous interwinding

interweaving

or connection between CNFs occurred. When CNF concentration was 1.2 wt%

stable dimensional CNFs network wa

s formed in water. The effects of CNFs concentration on oil droplet size

emulsion stability

and rheological characteristics of O/W Pickering emulsions stabilized by CNFs were investigated. Through stable spatial CNFs networks in water

CNFs particles can capture fine droplets of oil that were smaller than their particle size. The apparent viscosity of the emulsion increased with the increase of CNFs concentration. CNFs particles undergo irreversible adsorption at the oil-water interface. And the particle size parameters

]

and

]

of O/W Pickering emulsion stabilized by 2.0 wt% CNFs were 2.27 and 4.07 μm. The movement and aggregation of oil droplets were restricted completely by the network structure of the emulsion

so the O/W Pickering emulsion stabilized by 2.0 wt% CNFs could become very stable during 40 days of storage.

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