Abstract
Previous research has shown that sulfonated polyhedral silsesquioxane (s-POSS) material when mixed with silicone oil (PDMS) exhibits a significant ER effect. For the first time here we show that cyanopropyl POSS (c-POSS) particles in silicone oil also show significant ER activity. The yield stress, τy, scales with the electric field, E, as τy∝E. The elastic storage modulus of the suspension at small strains (γ=0.10) scales with the electric field E as G’∝E0.99–1.76.
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