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bce ›› 2015, Vol. 49 ›› Issue (2): 17-20.doi: 10.3969/j.issn.1673-5854.2015.02.004

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Preparation and Silanization Modification of Nanofibrillated Cellulose

WANG Yu, LIU Zhi-ming   

  1. College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
  • Received:2014-11-03 Online:2015-03-30 Published:2015-04-07

Abstract: Nanofibrillated cellulose(NFC) was prepared by high pressure homogenization method with absorbent cotton as raw materials.NFCs modified with chlorotrimethylsilane(TMCS) and octadecyltrichlorosilane were prepared respectively.Ultrastructral morphologies and structures of NFC,and silanization modified NFC were characterized by transmission electron microscopy(TEM),fourier transform infrared spectroscopy (FT-IR),X-ray diffraction spectroscopy(XRD),scanning electron microscopy(SEM),respectively.The research results show that the ultrastructral morphology of NFC is fibrillar,and its diameter is mostly about 20 nm,its length is mainly distributed in 500-1 000 nm,and its structure is cellulose type I.The results of FT-IR and SEM analysis show that the modified effect of 150 μL TMCS is better than others in the silanization modifications,and the ultrastructral morphology of the accordingly modified NFC is fibrillar.

Key words: nanofibrillated cellulose, silanization modification, characterization

CLC Number: