基于β-环糊精衍生物制备超疏水木材及其性能表征文献综述

 2022-08-10 02:08

摘 要

木材含有大量的亲水性基团(羟基)以及丰富的孔隙结构,具有很强的水分吸收能力,使其在利用过程中往往因为水分的存在而产生许多缺陷,水分的变化使木材产生诸多问题,木材的疏水化处理一直是木材科学研究中长久不衰的课题之一。本篇综述介绍了超疏水木材近几年的研究现状,以及有机材料beta;-环糊精衍生物的研究现状,讨论了利用beta;-环糊精衍生物合成超疏水材料的可能性,为基于有机材料制备超疏水木材提供了一条新的思路。

关键词:超疏水木材;表面疏水改性;beta;-环糊精衍生物

Hydrophobic wood constructed based on beta;-cyclodextrin derivatives and its properties characterization

Abstract

Wood contains a large number of hydrophilic groups (hydroxyl) and rich pore structure, and has a strong water absorption capacity, so the change of water causes many problems of wood. The hydrophobic treatment of wood has long been one of the research topics in wood science. In this paper, the research status of superhydrophobic wood and beta;-cyclodextrin derivatives of organic materials are reviewed. The possibility of synthesizing superhydrophobic materials with beta;-cyclodextrin derivatives is discussed, which provided a new idea for preparing superhydrophobic wood based on organic materials.

Keywords: Superhydrophobic wood; Surfacehydrophobic modification; beta;-cyclodextrin derivatives

引言

水滴可以在荷叶表面上自由滚动且不润湿荷叶表面;水黾能够浮在水面上不沾湿自己;甲虫可以让自己的背部收集水却不让水残留在背部等,这些是人类从大自然中观察到的超疏水现象[1]。超疏水现象归结于材料的的超疏水性。超疏水性是一种特殊的润湿性,一般指水滴在固体表面呈球状,材料表面能越低,疏水性越好,且当低表面能材料具有微观粗糙结构时,水滴与材料之间会形成一层空气膜,阻碍水对材料表面的润湿,形成超疏水状态超疏水表面,水滴在超疏水材料表面滚落时可带走污染物,使材料表面保持清洁。因此超疏水材料具有防水、防腐蚀、防冰以及防附着等多重优良特性。

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