摘要
通过改变掺杂在粒子表面表面活性剂的数量研究粒子表面特性对液体电流变效应的影响 .用溶胶凝胶法制得无水复合钛酸锶粒子 ,粒子表面掺杂不同质量分数的表面活性剂材料 ,把这些粒子均匀分散在硅油中形成悬浮液 .测试结果表明 ,粒子的表面特性对液体的电流变效应影响巨大 ,表面极性和界面极化与分散粒子的表面状态有密切关系 .
To investigate the influence of surface characteristics of particles on electrorheological (ER) fluids, water free complex strontium titanate particles were synthesized through the sol gel technique and different mass fraction of the surfactant was doped in particles and dispersed in silicon oil. The test shows that surface characteristics of particles have great influence on the behavior of ER fluids. Surface tension, surface polarity and interfacial polarization are strongly related to the surface status of the dispersed particles.
基金
NationalNaturalScienceFoundationofChina (K5 9872 0 0 5 )
关键词
电流变效应
界面极化
表面活性剂
electrorheological (ER) effect
interfacial polarization
surfactant
