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中文摘要：
以钠基蒙脱土为基体、γ-氨丙基三乙氧基硅烷（KH-550）为改性剂,采用研钵研磨法、溶液搅拌法、微波加热法制备了有机改性蒙脱土,通过FT-IR、XRD、TG、SEM、UV-Vis等分析方法,对改性前后的蒙脱土样品进行了研究.结果表明：研钵研磨法能够实现对蒙脱土的氨基化合物的插层改性;相比于溶液搅拌法、微波加热法,研钵研磨法改性效果更好;经研钵研磨法改性后,钠基蒙脱土（001）面层间距由未改性时的1.07nm增加到2.42nm;研钵研磨法制备的有机蒙脱土上有机物负载率最高,700℃下失重率达16%;经研钵研磨法改性的蒙脱土在有机介质中的分散性和稳定性最好.
英文摘要：
Organically modified montmorillonite was prepared respectively via mortar grinding,solution stirring and microwave heating,with sodium montmorillonite as the matrix and with γ-aminopropyl triethoxysilane（KH-550） as the modifying agent.Then,the samples before and after the modification were characterized and analyzed by means of FT-IR,XRD,TG,SEM and UV-Vis.The results show that（1） the mortar grinding method helps to realize the intercalation modification of the amino compound of montmorillonite and is more effective than the solution stirring method and the microwave heating method;（2） after the modification via mortar grinding,the（001） interlayer spacing of sodium montmorillonite improves from 1.07 nm to 2.42 nm;（3） the organic load rate of organic montmorillonite prepared via mortar grinding is the highest and the mass loss of montmorillonite at 700 ℃ is up to 16%;and（4） mortar grinding helps to prepare modified montmorillonite with uniform dispersion and strong stability in organic solvents.
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