| 球形木素磺酸盐树脂合成的优化与结构表征 |
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| 引用本文： | 范娟,詹怀宇. 球形木素磺酸盐树脂合成的优化与结构表征[J]. 中国化学工程学报, 2008, 16(3): 407-410. DOI: 10.1016/S1004-9541(08)60097-X |
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| 作者姓名： | 范娟 詹怀宇 |
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| 作者单位： | 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 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 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 optxmal conditxons （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 average pore size of dry samples was determined to be 10.46 nm. by the BET method.
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| 关 键 词： | spherical lignosulphonate resin process optimization structure characterization |
| 收稿时间： | 2007-09-25 |
| 修稿时间： | 2008-4-12 |
Optimization of synthesis of spherical lignosulphonate resin and its structure characterization |
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| FAN Juan,ZHAN Huaiyu. Optimization of synthesis of spherical lignosulphonate resin and its structure characterization[J]. Chinese Journal of Chemical Engineering, 2008, 16(3): 407-410. DOI: 10.1016/S1004-9541(08)60097-X |
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| Authors: | FAN Juan ZHAN Huaiyu |
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| Affiliation: | 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 |
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| 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=3mol·L-1, mHCHO:mCLS=7%, wCLS=50%), globulation took about 20min and the product was featured with excellent spherical shape, narrow particle size range, 61.20% of water retention capacity, 0.83mmol·ml1 of total volume exchange capacity and 3.46mmol·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 average pore size of dry samples was determined to be 10.46nm by the BET method. |
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| Keywords: | spherical lignosulphonate resin process optimization structure characterization |
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