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LIU Shuang, ZHANG Yang, ZHANG Tianmeng, et al. Preparation and characterization of 3-(2-aminoethylamino) propylmethyldimethoxysilane-nano cellulose aerogels[J]. Acta Materiae Compositae Sinica, 2018, 35(11): 3180-3188. DOI: 10.13801/j.cnki.fhclxb.20180316.004
Citation: LIU Shuang, ZHANG Yang, ZHANG Tianmeng, et al. Preparation and characterization of 3-(2-aminoethylamino) propylmethyldimethoxysilane-nano cellulose aerogels[J]. Acta Materiae Compositae Sinica, 2018, 35(11): 3180-3188. DOI: 10.13801/j.cnki.fhclxb.20180316.004
shu

Preparation and characterization of 3-(2-aminoethylamino) propylmethyldimethoxysilane-nano cellulose aerogels

  • 1.

    College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;

  • 2.

    College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China

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  • Corresponding author:

    张洋,教授,研究方向为木质及非木质复合材料人造板、胶粘剂、生物质材料等应用,E-mail:yangzhang31@126.com

  • Received Date: December 09, 2017
  • Revised Date: February 08, 2018
    Abstract
  • A novel cellulose nanofibers(CNF) aerogels were prepared based on the spherical cellulose nanofiber gel modified with 3-(2-aminoethylamino) propylmethyldimethoxysilane (AEAPMDS) in combination by solvent displacement and freeze drying. The change of its N content was investigated under different reaction conditions. The resultant spherical nano cellulose aerogels were characterized with respect to microscopic morphology, structural characteristics, mechanical properties and CO2 adsorption properties. The results show that the best preparation condition of the AEAPMDS-CNF aerogel is for 10 h at 90℃ and 12wt% AEAPMDS. The prepared AEAPMDS-CNF aerogel is a mesoporous material with 3D network pore structure, light mass (ρ ≤ 0.0573 g·cm-3) and high porosity (ε>90%). Its compressive strength can reach 0.46 MPa with a high CO2 adsorption capacity of up to 1.54 mmol·g-1. It is a promising material for CO2 adsorption in the future.
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