After organic modification, the interval between MMT layers expanded evidently, and the longer the length of organic compound molecular chains, the lager the interval of layers.

• 蒙脱土有机改性后，层间距显著扩大。有机分子链越长，层间距越大，同时带有支链的有机分子对蒙脱土的层间距也有较明显的影响。