不同表面活性剂制备有机蒙脱土

分别利用阳离子表面活性剂十六烷基三甲基溴化铵、十六烷基三甲基氯化铵和阴离子表面活性剂十二烷基磺酸钠制备了有机蒙脱土,并通过红外光谱分析和X-射线衍射分析对其进行了表征。结果表明,有机插层剂已进入蒙脱土的层间,蒙脱土的层间距由1.24 nm分别增加到2.14,2.20和2.51 nm。沉降实验结果表明,这种有机蒙脱土在有机介质中表现出很好的分散性。

Preparation of the organic montmorillonite with different surfactants

In this paper,the organic montmorillonite is prepared with cation surfactant CTAB,CTAC and anion surfactant SDS.The spectroscopic analysis and X-ray diffraction show that the organic reagent have.Intercalated into the layers of MMT,and the spacing between the MMT layers increased from 1.24 nm to 2.14,2.20 and 2.51 nm.Sedimentation experiment result shows that the organic MMT has good dispersibility.