Development of Kaolinite-Potassium Acetate Intercalation Composites

In this dissertation,kaolinite-potassium acetate intercalation compounds were prepared and characterized.The influence factors on intercalation,including reaction time and temperature were discussed mainly.Experiment data show that potassium acetate can directly insert between the inner layer of kaolinite under the participation of water.As a result,the c-axis spacing(d001) of kaolinite-potassium acetate intercalation composite increased to 1.160 0 nm from 0.722 3 nm of kaolinite.And the intercalation rate reached 90%.Fourier transform infrared(FT-IR) spectrum indicate that water insert the inner layer of kaolinite together with potassium acetate,which form hydrogen bond with the inner surface hydroxyl of kaolinite.The kaolinite-potassium acetate intercalation composites prepared by means mentioned in this paper can use as the precursor for preparation of kaolinite-organic intercalated compounds directly.