抄録
The properties and structure of the liquid crystalline (LC) colloid of the clay mineral nanosheet, fluorohectorite (FHT), dispersed in dimethylformamide (DMF) was investigated as the functions of the concentrations of a salt, water, and the nanosheets. The FHT/DMF system showed birefringence due to the LC phase above 0.5 wt. %. Small angle X-ray scattering revealed the presence of the lamellar structure in the LC phases, whose basal spacing decreased as the nanosheet concentration increses or a salt is added. Addition of water to FHT/DMF system resulted in the decrease in basal spacing and increase in structural regularity. The viscosity of the system significantly increased as the salt was added.
