关键词:电流变弹性胶体,钛酸锶钡,形貌与性能
Strontium nitrate, barium hydroxide and tetrabutyl titanate is used as raw material in the aqueous system. The precipitation method is used to synthesize strontium titanate grain with two different shapes, starlike and floriated. XRD and SEM is used to characterize the grains. The composite colloid is produced under electric field and not after the grains with different shapes are dispersed in the glutin hydrogel system. The mechanical property of composite colloid is measured to investigate the influence on the colloid by the shape of strontium titanate. The results show that the strontium titanate has 8-10μm of grain size and cubic phase structure. The rigidity of colloids with two shapes is at close range. The rigidity of colloids dispersed by starlike grain is improved clearly under electric field. It shows that starlike grains have stronger responsibility for the electric field.Key words: current rheologic elastic glum, strontium titanate, shape and performance
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