Cesium tungsten oxide particles, or cesium tungsten bronze, with a molecular formula of Cs0.33WO3, may be applied for producing thermal insulation dispersion liquid, and be used to architectural glass in the form of a thermal insulation film. Among them, some experts conducted experiments on the zeta potential and absorbance of Cs0.33WO3 dispersion at different pH.
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The results of the zeta potential and absorbance of Cs0.33WO3 dispersion at different pHs show that the Zeta potential of Cs0.33WO3 dispersion becomes smaller under strong acidic or alkaline conditions, which is not conducive to particle dispersion. When the Zeta potential is high, the surface of the particles can be kept at a certain distance, which weakens a certain molecular force and forms a stable suspension. Also, it can be seen from the absorbance curve that under strong acid or strong alkali conditions, the electrostatic repulsion between the particles is insufficient to resist the attraction, so that the particles are easily agglomerated and precipitated, and the absorbance is decreased.
