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›› 2012, Vol. 46 ›› Issue (5): 1-6.

• 研究报告 •     Next Articles

Preparation of Reed Pulp Nanocrystalline Cellulose by Sulfuric Acid Hydrolysis with Sodium m-Nitrobenzene Sulfonate as Cocatalyst

LIU Zhi-ming, XIE Cheng, WU Peng, LIU Li-yang   

  1. Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
  • Received:2012-03-12 Revised:1900-01-01 Online:2012-09-30 Published:2012-09-30

Abstract: Nanocrystalline cellulose (NCC) was prepared from reed pulp with 55% (by mass fraction) sulfuric acid and using sodium m-nitrobenzene sulfonate (SMS) as cocatalyst. The effects of reaction temperature and time, the addition of SMS on the yield and the mean size of NCC were studied. The results show that the optimal reaction temperature and time are 50℃ and 3.0 h, respectively, and the additon of sodium m-nitrobenzene sulfonate is 10%(based on mass of reed pulp). Analysis of fourier transform infrared(FT-IR) spectroscopy show that the prepared NCC with optimal condition is cellulosic substance. Analysis of transmission electron microscopy(TEM) and scanning electron microscopy(SEM) show that the morphology of NCC prepared by adding SMS as cocatalyst appears more regular and rod-like. The yield of NCC with addition of SMS as cocatalyst is the highest under the same preparation technology which is compared with the cocatalyst of sodium dodecyl benzene sulfonate(SDBS) and copper sulfate(CuSO4).

Key words: sodium m-nitrobenzene sulfonate, cocatalyst, reed pulp nanocrystalline cellulose

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