Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization

›› 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 Juan^1,2, ZHAN Huaiyu²

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. 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

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℃,c_HCl=3 mol·L^-1,m_HCHO:m_CLS=7%,w_CLS=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℃,c_HCl=3 mol·L^-1,m_HCHO:m_CLS=7%,w_CLS=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

FAN Juan, ZHAN Huaiyu. Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization[J]. , 2008, 16(3): 407-410.

范娟, 詹怀宇. Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization[J]. CIESC Journal, 2008, 16(3): 407-410.

References

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Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization

Optimization of Synthesis of Spherical Lignosulphonate Resin and Its Structure Characterization

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