【摘要】 运用红外吸收光谱（ＩＲ）和Ｘ射线衍射图谱（ＸＲＤ）等手段，研究高岭土－二甲亚砜（ＤＭＳＯ）夹层复合物的形成机理．ＩＲ谱初步确定ＤＭＳＯ分子与高岭土的外羟基之间形成氢键，ＸＲＤ谱表明ＤＭＳＯ分子进入高岭土层间后，使层间距增加了４．１×１０－１０ｍ．在ＤＭＳＯ中添加少量水可促进夹层反应的进行，增大夹入量。ＤＭＳＯ分子在高岭土层间以高度取向的形式存在．更多还原

【Abstract】 By means of infrared absorption spectra, X-ray diffraction pattern, etc., the formation of kaolin-dimethylsulfoxide was studied with emphasis on its mechanism. It was shown by IR spectra that the hydrogen bonds are formed between dimethylsulfoxide (DMSO) molecules and the external hydroxyl groups of kaolin. It was indicated by XRD pattern that the intercalated spacing increases 4. 1 × 10-10m after DMSO molecules intercalation; DMSO molecules exist in highly oriented form in the interlayer of kaolin; and the amount of DMSO intercalation was obviously enhanced by adding some water into DMSO.更多还原