纳米纤维素疏水改性及其功能化应用研究进展

doi:10.16085/j.issn.1000-6613.2023-0879

化工进展 ›› 2024, Vol. 43 ›› Issue (6): 3187-3198.DOI: 10.16085/j.issn.1000-6613.2023-0879

• 材料科学与技术 • 上一篇

纳米纤维素疏水改性及其功能化应用研究进展

龚雪梅¹(), 蒋军¹^,²(), 王超³, 梅长彤¹^,²

^1.南京林业大学林业资源高效加工利用协同创新中心，江苏南京 210037
^2.南京林业大学材料科学与工程学院，江苏南京 210037
^3.齐鲁工业大学（山东省科学院）生物基材料与绿色造纸国家重点实验室, 山东济南 250353

收稿日期:2023-05-29 修回日期:2023-08-04 出版日期:2024-06-15 发布日期:2024-07-02
通讯作者: 蒋军
作者简介:龚雪梅（1999—），女，硕士研究生，研究方向为生物质材料性能改良。E-mail: gxm112622@163.com。
基金资助:
国家自然科学基金(31901248);植物纤维功能材料国家林业和草原局重点实验室开放基金

Research progress on hydrophobicity modification and functional application of nanocellulose

GONG Xuemei¹(), JIANG Jun¹^,²(), WANG Chao³, MEI Changtong¹^,²

^1.Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
^2.College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
^3.State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, Shandong, China

Received:2023-05-29 Revised:2023-08-04 Online:2024-06-15 Published:2024-07-02
Contact: JIANG Jun

摘要/Abstract

摘要：

纳米纤维素作为一种生物质材料，具有高比表面积、高强度等优良性能。其表面存在大量的羟基，具备很强的亲水性。这在一定程度上影响了纳米纤维素在生物基复合材料中的分散效果，限制了它的功能化应用。因此，纳米纤维素疏水改性已成为研究焦点之一。本文讨论了利用物理、化学和聚合物接枝的方式对纳米纤维素进行疏水改性，总结了不同纳米纤维素疏水改性机制及其优缺点，分析了疏水改性纳米纤维素对机械性能、热性能和生物相容性等性能的影响。据此，概述了纳米纤维素疏水改性研究现状及其在包装、造纸和水净化等领域的功能化应用情况，为有效利用纳米纤维素提供理论策略和实践依据。最后，展望了疏水改性纳米纤维素的优势和未来应用前景。

关键词: 生物质材料, 纳米纤维素, 疏水改性, 功能化应用

Abstract:

As a kind of biomass materials, nanocellulose displays excellent properties, such as high specific surface area and high mechanical strength. There are many hydroxyl groups on its surface, resulting in strong hydrophilicity, which seriously affects the dispersion effect of nanocellulose in bio-based composites and limits its functional applications. Therefore, hydrophobicity modification of nanocellulose has become one of the research focuses. The hydrophobicity modification of nanocellulose via physical, chemical and polymer grafting methods were discussed, and the mechanisms, advantages and disadvantages of different methods were summarized. The effects of hydrophobicity modification of nanocellulose on mechanical properties, thermal properties and biocompatibility were analyzed. After that, this paper summarized the research status of hydrophobicity modification of nanocellulose and its functional application in packaging, papermaking and water purification, which can provide theoretical strategy and practical guide to the effective use of nanocellulose. Finally, the advantages and future prospects of hydrophobicity modification on nanocellulose were proposed.

Key words: biomass material, nanocellulose, hydrophobicity modification, functional application

中图分类号:

TQ35

龚雪梅, 蒋军, 王超, 梅长彤. 纳米纤维素疏水改性及其功能化应用研究进展[J]. 化工进展, 2024, 43(6): 3187-3198.

GONG Xuemei, JIANG Jun, WANG Chao, MEI Changtong. Research progress on hydrophobicity modification and functional application of nanocellulose[J]. Chemical Industry and Engineering Progress, 2024, 43(6): 3187-3198.

图/表 14

图1 三种类型纳米纤维素的TEM和AFM[5]

图2 CTAB改性CNCs/SiO2涂层的合成路线[29]

图3 CNF表面改性和表面涂层工艺(a)及CNF (b)和THFS (c)的化学结构[31]

图4 TEMPO/NaBr/NaClO氧化CNC的季铵盐吸附修饰[33]

图5 含季铵离子的聚乙烯离聚物对CNCs改性[35]

图6 通过纳米纤维表面羧酸基团与PMMA-b-PAA大分子链中丙烯酸嵌段之间的氢键相互作用形成CNF-COOH/PMMA-b-PAA复合物[36]

图7 TMCS/rGO/CNFs气凝胶的合成步骤[38]

图8 疏水改性CNFs (a)及其CNF (b)薄膜制备示意图[41]

图9 乳酸与CNF表面羟基酯化反应制备乳酸接枝CNF的示意图[44]

图10 薄膜流延工艺生产包装材料[49]

图11 CNC（a）和r-CNC（b）的C 1s XPS光谱；松香、CNC和r-CNC的ATR-FTIR光谱（c）；CNCs（d）和r-CNCs（e）的TEM显微照片；松香功能化CNC的示意图（f）[55]

图12 阳离子“硬-软”Janus 粒子的合成策略和表面施胶机制[58]

图13 阳离子“硬-软”Janus颗粒及其SEM图、尺寸分布[58]

图14 NFC/PVA气凝胶制备及使用不同脂肪酸的气凝胶酯化示意图[60]

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纳米纤维素疏水改性及其功能化应用研究进展

Research progress on hydrophobicity modification and functional application of nanocellulose

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