复合乳液成膜过程中蒙脱土的结构研究

Study on Structure of Montmorillonite in Film Forming Process of Compound Emulsion

对丙烯酸酯 /蒙脱土复合乳液干燥成膜过程中蒙脱土结构的变化进行了研究。利用冷冻干燥技术对不同成膜阶段的复合乳液进行了处理。TEM、XRD和SEM研究表明 :蒙脱土的结构在复合乳液的成膜过程中有着显著的变化 ,其在复合乳液中的层间距要大于成膜后的样品 ,成膜之后蒙脱土的结构特征很大程度上取决于复合乳液中水分干燥的方式。

This article has studied the changes of structure of montmorillonite during the film forming process of acrylate/montmorillonite compound emulsion. The compound emulsions in different film forming stages are treated using freeze dry technology. The test results by use of TEM, XRD and SEM indicated that the structure of montmorillonite shows great changes during film forming process of compound emulsion; the interlamellar spacing in compound emulsion is bigger than that in dried film. The structural features of montmorillonite in dried film depend on the drying approaches of water in compound emulsion.