利用二甲基亚砜(DMSO)和去离子水对高岭石进行重复的插层与水洗,并采用X射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)、旋转魔角核磁共振(MAS NMR)、扫描电镜(SEM)对产物进行表征。研究发现,经10次重复插层与水洗,高岭石结晶度降低,结构遭到一定程度破坏但未发生崩塌。MAS NMR数据显示,Si谱未发生较大变化,Al谱化学位移变化了3.5×10-6,但Si原子和Al原子聚合度保持不变,高岭石主体结构仍呈层状结构。此外,随着水洗次数的增加,高岭石叠置片层减少,晶形遭到一定破坏。 The kaolinite was repeatedly intercalated and washed with dimethylsulfoxide (DMSO) and deionized water. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and rotational magic angle nuclear magnetic resonance MAS NMR), the product was characterized by scanning electron microscopy (SEM). The study found that after 10 repetitions of intercalation and washing, the crystallinity of kaolinite decreased, and the structure was destroyed to a certain degree without collapsing. The results of MAS NMR showed that there was no significant change in the Si spectrum, and the chemical shift of Al spectrum changed by 3.5 × 10-6. However, the degree of polymerization of Si atoms and Al atoms remained unchanged, and the main structure of kaolinite remained as a layered structure. In addition, with the increase of water washing times, the kaolinite layer lamellae reduce and the crystal form is damaged.