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《Non-Metallic Mines》 2009-05
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Effects of Coupling Agent on Adsorption of Montmorillonite to Arginine

Lv Yinghai Zhou Shixue Li Guijiang Zhou Zhenghui Yang Minjian(College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510)  
The author started with the adsorption curve of arginine, then functionalized montmorillonite with glutaraldehyde (GA) and γ-methyl-propenoyl-silane (KH570) respectively.An analysis of adsorption of montmorillonite to arginine was made among different treatment. Experiment proves that electrostatic interaction, hydrophobic interaction and hydrogen bonds commonly play an important role in the adsorption of montmorillonite to arginine and some covalent bonds generated with the existence of coupling agent. The XRD and FTIR patterns indicate that KH570 changes the surface structure of MMT and the GA does not bring obvious changes,but chemical bonds can easily promote with GA.Furthermore the use of coupling agents can increase the adsorption capacity to a great extent, while the coupling agents have no effect on the layer space. This research is of great signif icance since the development may lead to application on both basic research such as organic-modif ied montmorillonite and technical processes such as drug delivery.
【Fund】: 国家自然科学基金项目(50574054);; 山东科技大学春蕾计划资助
【CateGory Index】: O647.31
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