膨润土的复合改性研究

Study on Synthesis of Complex Organic Bentonite

以无机膨润土与聚丙烯酰胺和十八烷基二甲基苄基氯化铵(1827)为原料,合成二元改性有机膨润土。利用红外光谱,X射线衍射,透射电镜及差热分析进行了表征,结果表明:经改性后的有机膨润土,层间距由0.34 nm增大到0.45 nm,有机物含量达40.08%。

The complex organobentonite was synthesized from natural bentonite , octadecyl dimethyl benzyl ammonium chloride（ 1827 ） and polyacrylamide. The structure of the obtained organobentonite was characterized by IR, XRD, TEM and DSC - TGA. The results show that organic content is 40.08 % , and the distance between layers is increased to 0.45 nm from 0.34 nm.