SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (3): 407-410.

• • 上一篇    下一篇

Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization

范娟1,2, 詹怀宇2   

  1. 1. Key Laboratory of Enhanced Heat Transfer & Energy Conservation of Ministry of Education, South China University of Technology, Guangzhou 510640, China;
    2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
  • 收稿日期:2007-09-25 修回日期:2008-04-12 出版日期:2008-06-28 发布日期:2008-06-28
  • 通讯作者: FAN Juan,E-mail:juanfan@scut.edu.cn
  • 基金资助:
    Ph. D. Programs Foundation of Ministry of Education of China (20020561001)

Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization

FAN Juan1,2, ZHAN Huaiyu2   

  1. 1. Key Laboratory of Enhanced Heat Transfer & Energy Conservation of Ministry of Education, South China University of Technology, Guangzhou 510640, China;
    2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2007-09-25 Revised:2008-04-12 Online:2008-06-28 Published:2008-06-28
  • Supported by:
    Ph. D. Programs Foundation of Ministry of Education of China (20020561001)

摘要: Calcium lignosulphonate was used to synthesize a spherical lignosulphonate resin in a cheap and non-toxic disperse medium by reversed phase suspension polymerization.The process conditions were optimized by orthogonal experiments.Under the optimal conditions(T=95℃,cHCl=3 mol·L-1,mHCHO:mCLS=7%,wCLS=50%),globulation took about 20 min and the product was featured with excellent spherical shape,narrow particle size range,61.20%of water retention capacity,0.83 mmol·ml-1 of total volume exchange capacity and 3.46 mmol·g-1 of total exchange capacity.The results of Scanning Electron Micrograph and Scanning Probe Micrograph indicate that spherical lignosulphonate resin has a rugged surface with porous microstructure in the gel skeleton.The aver-age pore size of dry samples was determined to be 10.46 nm by the BET method.

关键词: spherical lignosulphonate resin, process optimization, structure characterization

Abstract: Calcium lignosulphonate was used to synthesize a spherical lignosulphonate resin in a cheap and non-toxic disperse medium by reversed phase suspension polymerization.The process conditions were optimized by orthogonal experiments.Under the optimal conditions(T=95℃,cHCl=3 mol·L-1,mHCHO:mCLS=7%,wCLS=50%),globulation took about 20 min and the product was featured with excellent spherical shape,narrow particle size range,61.20%of water retention capacity,0.83 mmol·ml-1 of total volume exchange capacity and 3.46 mmol·g-1 of total exchange capacity.The results of Scanning Electron Micrograph and Scanning Probe Micrograph indicate that spherical lignosulphonate resin has a rugged surface with porous microstructure in the gel skeleton.The aver-age pore size of dry samples was determined to be 10.46 nm by the BET method.

Key words: spherical lignosulphonate resin, process optimization, structure characterization