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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (4): 49-55.doi: 10.3969/j.issn.0253-2417.2019.04.007

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Synthesis and Characterization of Lignocellulose Oil-absorbing Aerogels

Yan CHEN,Zixin WANG,Qizhen LI,Jianyu XIA,Zhulan LIU,Yunfeng CAO*()   

  1. Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry Univeristy, Nanjing 210037, China
  • Received:2019-04-18 Online:2019-08-25 Published:2019-08-23
  • Contact: Yunfeng CAO E-mail:yunfcao@163.com
  • Supported by:


Soybean straw powder was swelled by ethanediamine(EDA) and dissolved in LiCl/DMSO solution to get a homogenies solution. In the homogenies solution, a novel hydrophobic oil-absorbing aerogel was fabricated from lignocellulose and monomers including methyl methacrylate (MMA) and butyl acrylate(BA) by the method of semi-interpenetrating polymer network (SIPN) with using N, N-methylene diacrylamide (MBA) as the crosslinker and azobisisobutyronitrile (AIBN) as the initiator. The chemical linkage, microstructure, rheology, hydrophobic and oil-absorption were determined by FT-IR, SEM, rheology tester, contact angle tester and so on. It could be concluded that the poly-(MMA-BA) matrix and lignocellulose chains were intertwined with each other in the aerogel and the aerogel had obvious porous three-dimensional network structure, good hydrophobicity and oil-absorption. The microstructure, hydrophobicity and oil-absorption could be regulated by adjusting the ratio of lignocellulose and the monomers. The lignocellulose aerogel obtained with the ratio of lignocellulose and monomers ratio of 1:4, had the loosest structure and relatively larger pores, and its absorption capacity on xylene and edible oil could reach up to 10.61 g/g and 7.41 g/g respectively, and these data were higher than those of others.

Key words: LiCl/DMSO, ethanediamine, lignocellulose aerogel, semi-interpenetrating polymer network, oil-absorption

CLC Number: