SCI和EI收录∣中国化工学会会刊

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

• SPECIAL ISSUE OF THE FIRST INTERNATIONAL SYMPOSIUM ON SUSTAINABLE CHEMICAL PRODUCT AND PROCESS ENGINEERING • Previous Articles     Next Articles

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)

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
  • 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)

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

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