纳米纤维素疏水改性的研究进展

doi:10.3969/j.issn.0253-2417.2021.03.016

摘要/Abstract

摘要：

纳米纤维素是从天然纤维素中提取的一种纳米级纤维素，它不仅具有纤维素的基本特征，还具有因纳米尺寸带来的大的比表面积和独特的强度以及光学性能，但纤维素中存在的游离羟基具有亲水性，使纳米纤维素材料在潮湿环境中的挺度下降，这限制了它的应用领域，因此，对纳米纤维素进行疏水改性可扩大其适用范围。本文综述了近年来对纳米纤维素进行疏水改性的方法，主要包括物理吸附改性、酯化/乙酰化改性、接枝共聚改性、硅烷偶联剂改性等，总结了上述方法的研究成果及优缺点，对今后的发展方向做出展望，以期为疏水改性研究提供借鉴和参考。

关键词: 纳米纤维素, 疏水改性, 酯化, 接枝共聚

Abstract:

Nanocellulose is a kind of nano-sized cellulose extracted from natural cellulose. It not only has the basic characteristics of cellulose, but also has large specific surface area, unique strength and optical properties originated from nano-size. However, the presence of free hydroxyl groups in cellulose is hydrophilic, which reduces the stiffness of nanocellulose materials in humid environments and limits its application fields. Therefore, hydrophobic modification of nanocellulose can expand its scope of application. This article reviewed the methods of hydrophobic modification of nanocellulose in recent years, including physical adsorption modification, esterification/acetylation modification, graft copolymerization, silane coupling agent modification, etc., and summarized the research results of the above methods, as well as the advantages and disadvantages. And the future development direction was prospected in order to provide reference for hydrophobic modification research.

Key words: nanocellulose, hydrophobic modification, esterification, graft copolymerization

中图分类号:

TQ35
TS721

王凌媛, 惠岚峰. 纳米纤维素疏水改性的研究进展[J]. 林产化学与工业, 2021, 41(3): 125-133.

Lingyuan WANG, Lanfeng HUI. Research Progress of Hydrophobic Modification of Nanocellulose[J]. Chemistry and Industry of Forest Products, 2021, 41(3): 125-133.

图/表 7

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