新型有机蒙脱土的制备、结构表征及其分散性

采用十六烷基氯化吡啶及乙酸镍对蒙脱土进行了一次、二次插层改性,对样品进行了红外光谱、X射线衍射分析和沉降实验.结果表明两种插层剂均已进入蒙脱土的层间,有机蒙脱土的层间距由1.04 nm增加到2.21 nm,改性蒙脱土在有机介质中表现出很好的分散性.该实验结果证明,利用二次插层扩大层间距和配位作用引入新物质是完全可行的,这一点为利用配位聚合制备复合材料提供了思路.

Preparation and Characterization of Organophilic Montmorillonite

In this paper, the first and second insert montmorillonite are prepared by cetylpyridinium chloride and nickel ion. The spectra of FTIR and XRD show that the organic agents have intercalated into the layers of MMT, and the spacing of MMT layers increase from 1.04nm to 2.21nm. Sedimentation experiment showes that the organic MMT have better dispersibility. And the experiment result has proved that using second insert to enlarge clay space and to introduce new ageng are viable, and this afford new thought for making polymer thought coordination polymerization.