通过研究不同电荷状态的含阴离子官能团物质与蒙脱土(MMT)复合物的插层情况来研究阴离子官能团与MMT的相互作用,利用FT-IR、XRD和NMR等手段对反应产物进行表征,以确定阴离子官能团与MMT的作用机理和作用位点。试验结果表明,羧酸基团与MMT有很强的相互作用。羧酸基团与MMT发生作用的位点是(-COO-)上的羰基(-C=0),它与MMT上的(-OH)或Al3+发生作用。
The mechanism of interaction between anions and MMT was studied by analyzing the different intercalation effect of organic anions matter in different state of c mechanism and the sites of interaction between anions and MMT, barges distribution. In order to ascertain the a combined characterization technique of FT- IR, XRD and NMR were used. The results indicate that carboxyl group is strongly interacted with MMT. The interactive sites between carboxyl matter and MMT is the carbonyl group ( --C=O ) of the carboxyl anion group (--COO-), which interacts with the aluminium hydroxyl group or the aluminium ion.