在60℃下,高岭石与二甲基亚砜反应制备高岭石/二甲基亚砜插层复合物,使用X衍射分析、热分析、红外光谱分析对其进行表征。在140℃下,苯甲酰胺与高岭石/二甲基亚砜插层复合物反应4 d,得到高岭石/苯甲酰胺插层复合物,对其进行表征,然后与高岭石/二甲基亚砜插层复合物进行对比。结果表明：在没有二甲基亚砜作为前驱体的情况下,苯甲酰胺不能与高岭石直接进行反应;高岭石/苯甲酰胺插层复合物结构的稳定性好,是由于苯甲酰胺插层内羰基中的氧原子与高岭石层间表面上的铝硅酸盐形成氢键。%The kaolinite（K） was initially reacted at 60 ℃ with a water/dimethylsulfoxide（DMSO） mixture and the resulting intercalation derivative（K-DMSO） was characterized by X-ray diffraction（XRD）,thermal analysis（simultaneous TG and DSC） and Fourier-transformed infrared spectroscopy（FTIR）.Benzamide crystals were then melted with the K-DMSO derivative at 140 ℃ for 4 days when a gradual displacement of DMSO by benzamide was observed within the interlayer spacing of the modified kaolinite.The product was characterized and compared to the results obtained previously for the K-DMSO composite.Experimental results showed that intercalation of benzamide within the matrix could not be achieved without preexpansion of the lamellar structure of kaolinite with DMSO.The structural stabilization of the K-BZ derivative was explained through the establishment of hydrogen bonds between the carbonyl oxygen atoms of the intercalated benzamide and aluminol groups present at the surface of the kaolinite layer.
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