Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (9): 46-51.doi: 10.3969/j.issn.1000-565X.2010.09.009

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Extractives of High-Yield Bamboo Pulp and Their Effects on H2O2 Bleaching

Liang Chen  Zhan Huai-yu  Li Bing-yun  Fu Shi-yu   

  1. State Key Laboratory of Pulp and Paper Engineering,South China Univevsity of Technology,Guangzhou 510640,Guangdong,China
  • Received:2009-12-24 Revised:2010-03-23 Online:2010-09-25 Published:2010-09-25
  • Contact: 梁辰（1984-），男，博士生，主要从事制浆化学与生物化学研究． E-mail:licee@163．com
  • About author:梁辰（1984-），男，博士生，主要从事制浆化学与生物化学研究．
  • Supported by:

    国家“973”计划预研项目（2006CB70861.4）

PDF

876

Abstract:

This paper deals with the extractives of high-yield Neosinocalamus sulfonated chemimechanical pulp（SCMP） and their effects on the hydrogen peroxide bleaching.The results show that the extractives from Neosinocalamus SCMP in benzene-alcohol,dichloromethane and methanol are all in low content,that the extractives mainly contain fatty acids and steroids,as well as some substances producing UV absorption at about 330nm,that the brightness of peroxide-bleached pulp after the extraction increases by more than 6%,and by 9%ISO especially after the benzene-alcohol extraction,and that the yellowish phenomenon of the bleached pulp lightens to a degree of 37.3% at most and the heat-induced yellowing value decreases by 65.8% at most.

Key words: bamboo, high yield pulp, solvent extraction, extractives, hydrogen peroxide, bleaching, optical pro-perties