Synthesis of Transparent and Field-Responsive BaTiO3 Particle/ Organosiloxane Hybrid Fluid

摘要

Nanocomposite fluids attract special attention because of their high thermal conductivities, which are applied in electronics, micro-and nanoelectromechanical systems, and other heat-transport devices. Nanocomposite fluids are synthesized by mixing nanoparticles synthesized separately as a dry powder and a fluid. However, uniformly mixing nanoparticles and fluids is difficult because nanoparticles form agglomerates as a result of van der Waals forces. The change in aggregation with changes in anisotropy appears to be one of the reasons for inconsistent and nonreproducible thermal conductivity data. Chemical synthesis of nanoparticles in solution is one of the most advantageous methods for synthesis of nanocomposite fluids. Nanoparticle synthesis by controlled precursor hydrolysis is meritorious because nanoparticles of uniform size are formed. In addition, nanoparticles can be stabilized through steric repulsion between chemically bound polymers on the particle surfa-ces.