岩石矿物学杂志2009，Vol.28Issue(6)：670-674,5.
醋酸钾/偏高岭石插层复合材料的制备及机理研究
Preparation and possible mechanism of potassium acetate/metakaolinite intercalated composites
摘要
Abstract
Potassium acetate/metakaolinite intercalated composites were successfully prepared by mechanical grinding at the room temperature. The structure of metakaolinite before and after the intercalation was studied by XRD, FTIR and TEM. It was found that potassium acetate was first coordinated with water molecules and then moved into the interlayer of metakaolinite by mechanical grinding, resulting in the expansion of metakaolinite layers. During the heat treatment, water volatilization also led to the expansion of metakaolinite layers. In intercalated composites, acetate ions were coordinated with the gibbsite-type layers through water molecules bridging. Besides, the hydrated K~+ cation stayed near the silica-type layers with the negative charge so as to keep charge balance.关键词
偏高岭石/醋酸钾/插层/机理Key words
metakaolinite/ potassium acetate/ intercalation/ mechanism分类
天文与地球科学引用本文复制引用
许涛,韩炜,陈敬中,李珍,余钢..醋酸钾/偏高岭石插层复合材料的制备及机理研究[J].岩石矿物学杂志,2009,28(6):670-674,5.基金项目
长江科学院中央级公益性科研院所基本科研业务费(YWF0729/CL02,YWF0729/CL03) （YWF0729/CL02,YWF0729/CL03）
