【摘要】 采用溶胶-凝胶法制备了一种新型高岭土/二氧化钛纳米复合电流变液材料.XRD、FT-IR、SEM分析表明TiO₂以纳米晶的形态包覆于高岭土表面.电流变性能测试表明,不同的TiO₂质量比的复合颗粒电流变液效应不同,且都比纯高岭土电流变有显著提高.同时当复合颗粒中TiO₂质量百分比在34％,颗粒硅油体积分数为25％,直流电场为3kV/mm时,高岭土/二氧化钛纳米复合材料电流变液的静屈服应力达3.4kPa,是纯高岭土电流变液的5倍.更多还原

【Abstract】 Kaolinite/TiO₂ nanocomposite particles were prepared by sol-gel technique. Theanalysis of XRD,FT-IR and SEM shows that the surface of kaolinite is coated by nano-TiO₂crystal. Furthermore the electrorheological effect is associated with the TiO₂ mass percent in thenanocomposite particle. When the content of TiO₂ in the composite is 34%, E=3kV/mm, andvolume fraction is 25%, the yield stress of kaolinite/TiO₂ nanocomposite ERF is 3.4 kPa, which is5 times of that of kaolinite.更多还原