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| Study on Adsorption of Glyceryl Tristearate by β-Cyclodextrin Modified Polystyrene Resin |
| Received:January 20, 2022 |
| DOI：10.11981/j.issn.1000-6842.2023.01.60 |
| Key Words:paper machine white water;resin extractives;β-cyclodextrin;polystyrene resin;adsorption |
| Fund Project:国家自然科学基金（31770633）；生物基材料与绿色造纸国家重点实验室开放基金（KF201813）。 |
| Author Name | Affiliation | Postcode | | ZHANG Chen | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001 | 350001 | | LIU Gengmei | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001 | 350001 | | WANG Qiang | State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 | 250353 | | CHEN Lihui | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001 | 350001 | | WU Hui | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001 | 350001 | | XIAO He | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001 | 350001 | | MIAO Qingxian | College of Materials Engineering， Fujian Agriculture and Forestry University， Fuzhou， Fujian Province， 350001
State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 | 250353 |
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| Abstract: |
| β-Cyclodextrin modified polystyrene resin （PS-β-CD） was used to adsorb glyceryl tristearate which was considered as the model of resin extractives in the paper machine white water. The adsorption condition was optimized； the isotherms， thermodynamics， and kinetics of the adsorption of glyceryl tristearate on PS-β-CD were investigated. The results showed that the optimized adsorption condition was PS-β-CD dosage of 2 g/L， temperature 35 ℃ （308 K）， time 5 h， and shaker speed 240 r/min. Both the Langmuir and Freundlich isothermal adsorption models are suitable for describing the adsorption process of glyceryl tristearate on PS-β-CD， which is a physical adsorption of endothermic process. In addition， the main adsorption mechanism is the intra-particle diffusion model. |
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