林产化学与工业2016，Vol.36Issue(4)：14-22,9.DOI:10.3969/j.issn.0253-2417.2016.04.003
纳米纤维素气凝胶的制备、表征及其性能研究
Preparation and Shape Recovery Property of the Nanocellulose Aerogels
摘要
Abstract
The porous nanocellulose aerogels were obtained by the cross-linked reaction of 1, 4-butanediol diglycidyl ether (BDGE) and nanocellulose fibers (NCFs) with the catalyst of SnCl4. The morphological feature, chemical characterization, crystal structure, thermostability, element of nanocellulose aerogels and surface aera were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermo gravimetric analysis, scanning electron microscopy, X-ray photoelectron spectroscopy and Brunauer-Emmett-Teller analysis, respectively. The density, solvent absorption ability, shape recovery property and reusability of nanocellulose aerogels were investigated. The results showed that aerogels with continuous network pore structure still maintain the cellulose I crystalline structure and the aerogels started to degrade above 300 ℃. When the amount of BDGE was 2 times as much as the mass of NCFs, the density of aerogels was 0. 020 2 mg/cm3 , and aerogels could absorb water by 36. 5 g/g of their own weight. The recovery degree of aerogels immersed in water and DMSO could reach 90%. After reusing for 5 times, the water absorption ability of aegrogel was still up to 30. 4 g/g.关键词
纳米纤维素/1 ,4-丁二醇二缩水甘油醚/气凝胶Key words
nanocellulose/1,4-butanediol diglycidyl ether/aerogels分类
化学化工引用本文复制引用
王蒙蒙,王爱婷,刘鹤,刘仕伟,于世涛..纳米纤维素气凝胶的制备、表征及其性能研究[J].林产化学与工业,2016,36(4):14-22,9.基金项目
“泰山学者”建设工程专项经费资助(无编号) （无编号）
国家自然科学基金青年基金项目(31200446) （31200446）
“十二五”国家科技支撑计划资助(2015BAD14B06) （2015BAD14B06）
