以二甲亚砜-高岭石插层复合物为前驱物,乙腈为插层剂,采用二步插层法制备了高岭石-乙腈复合材料。采用XRD、FTIR等分析技术对产物进行了表征。研究结果表明,插层后高岭石d(001)层间距由0.7094nm膨胀至1.097nm,插层率达67.9%;乙腈分子与高岭石的内表面羟基形成氢键,在高岭石层间可能以平行于高岭石层片方式排列。 Using dimethylsulfoxide - kaolinite intercalation compound as precursor and acetonitrile as intercalation agent, kaolinite - acetonitrile composite was prepared by two - step intercalation method. The products were characterized by XRD, FTIR and other analytical techniques. The results show that the d (001) spacing of kaolinite expands from 0.7094 nm to 1.097 nm after intercalation, and the intercalation rate reaches 67.9%. Acetonitrile molecules form hydrogen bonds with the hydroxyl groups on the inner surface of kaolinite May be arranged parallel to the kaolinite plies.