Preparation, characterization and oil adsorption properties of cellulose aerogels from four kinds of plant materials via a NAOH/PEG aqueous solution

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• 作者：Caichao Wan (4)
  Yun Lu (1)
  Jun Cao (2)
  Qingfeng Sun (3)
  Jian Li (4)
  
  4. Material Science and Engineering College ; Northeast Forestry University ; Harbin ; 150040 ; China
  1. Research Institute of Wood Industry ; Chinese Academy of Forestry ; Beijing ; 100091 ; China
  2. College of Mechanical and Electrical Engineering ; Northeast Forestry University ; Harbin ; 150040 ; China
  3. School of Engineering ; Zhejiang Agricultural and Forestry University ; Lin鈥檃n ; 311300 ; China
  
• 关键词：Cellulose aerogels ; Adsorption properties ; Hydrophobic modification ; Porous materials ; Polymers
• 刊名：Fibers and Polymers
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：16
• 期：2
• 页码：302-307
• 全文大小：1,424 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  
• 出版者：The Korean Fiber Society
• ISSN：1875-0052

文摘

In this paper, cellulose aerogels based on four kinds of plant materials including wheat straw, bamboo fiber, filter paper and cotton were prepared by alternative chemical pretreatment, dissolution in a green NaOH/PEG solution, freeze-thaw treatment, regeneration and freeze drying, respectively, and were subsequently characterized by scanning electron microscopy (SEM), nitrogen adsorption measurements, X-ray diffraction (XRD), thermogravimetric analysis (TGA). The differences in morphology, pore feature, crystalline structure and thermal property for the four kinds of aerogels were investigated. Meanwhile, the oil adsorption capacities differences of the aerogels were also studied after the aerogels were subjected to hydrophobic modifications by methyltrichlorosilane (MTCS); besides, the effect of the hydrophobic modifications was explored by Fourier transform infrared spectroscopy (FTIR).