中文摘要：

通过优化聚二烯丙基二甲基季铵盐（PDMDAAC）的合成工艺，选用二烯丙基二甲基季铵盐（DMDAAC）在不同用量的蒙脱土中原位插层聚合，制备了系列纳米复合材料（PDMDAAC／MMT）。通过单体转化率和聚合物的特性粘度考察不同用量的蒙脱土对单体插层聚合的影响；也进行了采用纳米复合材料应用于皮革预鞣，再用2％标准铬粉鞣制的试验初试。结果表明：蒙脱土的用量为5％时，蒙脱土的层间距、单体转化率、聚合物的特性粘度均达到最大值；蒙脱土用量为4％时，纳米复合材料对坯革的增强效果最明显；同时对坯革透水汽性的负面影响最大。

英文摘要：

The preparation process of poly imethyldially ammonium chlorid （PDMDAAC） was optimized firstly in this paper. A series of PDMDAAC/MMT nanomaterials were prepared using DMDAAC. The effects of various dosages of MMT on the intercalation polymerization were studied and the application of nano-eomposite in the leather also was presented in this paper. The results indicated that the inter laminar distance of MMT in nanomaterial reached the biggest value when the dosage of MMT was 5%. The strength of nano-composites on the leather was very obvious when the dosage of MMT was 4%.