Cesium tungsten oxide particles, or cesium tungsten bronze particles, or cesium-doped tungsten bronze particles, may be used to prepare thermal insulation masterbatch. And the masterbatch may be used for producing heat insulating materials such as thermal insulation films for building glass. As the agglomeration of the raw material cesium tungsten bronze nanoparticles affects the thermal insulation performance of the masterbatch, we need to conduct some research on the agglomeration of the nanoparticles. For example, to understand the effect of the surface charge on the nanoparticles.
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So, what effect does surface charge have on nanoparticles? Many nanoparticles have a charge on the surface. When H+ and OH- ions are present in the liquid medium, the nanoparticles adsorb oppositely charged particles to form a stable electric double layer structure. When nanoparticles with the same electrical properties on the surface are close to each other, the same charges are mutually exclusive. When the Zeta potential is large, it has a strong repulsive force, and the particles are not easy to agglomerate; on the contrary, when the Zeta potential is small, the repulsive force is weak, and the particles are easily agglomerated.
