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Cesium tungsten bronze is a type of infrared thermal insulation nano material, which can shield near-infrared light. Inside the metal, free electrons may be considered as static, and a large number of free electrons form plasma with natural vibration frequency. When the natural frequency is close to the frequency of the incident light, acute coupling occurs to form plasma wave. Then, the energy of the incident light is largely absorbed by metal as the plasma waves are in the process…

Cesium tungsten bronze nano powder, as a type of infrared thermal insulation nano material, is a raw material for preparing transparent heat insulation coating. The transparent heat insulation coating is mainly composed of a resin and a type of transparent semiconductor material (cesium tungsten bronze, etc.). These transparent semiconductor materials all have excellent optical properties. In other words, they have strong near-infrared shielding performance and high transmittance of visible light. Based on the optical performance of such coatings, they have…

CsxWO3, or Cs-doped tungsten bronze, as a kind of infrared thermal insulation nano material, may be prepared through hydrothermal synthesis with cesium carbonate and sodium tungstate as raw materials and citric acid as reducing agent. It can be made into coating for architectural glass or car glass. Preparation of CsxWO3 Coating Step one: Preparation of Cs-doped tungsten bronze slurry. The CsxWO3 particles were dispersed in aqueous solution to obtain dispersion slurry, and polyethylene glycol-400 was added as wetting agent, and…

Cesium tungsten bronze powder is a kind of infrared thermal insulation nano material. It is also a kind of tungsten bronze doped with alkali metal element (Cs). As a kind of infrared thermal insulation material, cesium tungsten bronze has the ability to selectively transmit light waves. Generally, it has high visible light transmittance and low near-infrared transmittance. It means that cesium tungsten bronze may shield the near-infrared light while guaranteeing good daylighting, thereby playing a role of transparent heat insulation.…

Nano cesium tungstate powder, with molecular formula of Cs2WO4, is a kind of infrared thermal insulation nano material that is applied on the architectural glass in the form of transparent heat insulation coating. Preparation of Nano Cesium Tungstate Powder Step one: Sodium tungstate and cesium carbonate are dissolved in citric acid solution and methanol solvent, after stirring, the reaction is performed at 180-200°C for 2~3 hours. Then, the mixed liquor of tungsten and cesium is obtained. n(CS)/n(W) = 0.33:1. Step…

Cesium tungstate, as a kind of infrared thermal insulation nano material, can be used on architectural glass with high transmittance. In order to reduce building energy consumption, energy-saving technology of building glass emerged as the times require. There are different ways to save energy. Convection, conduction and radiation are the ways that energy enters the room through windows. Therefore, according to these ways, energy efficient glass can be divided into the following types basically: 1. Combined building energy-saving glass such…

Cesium tungsten bronze nanopowder is a kind of infrared thermal insulation nano material, which can be applied in the form of transparent heat-insulating film for building energy efficiency. Energy on the earth comes from the sun’s radiation. Electromagnetic waves are the form of energy delivered by the sun. The “Energy Distribution of the Solar Spectrum” is shown in the figure below. As can be seen from the figure, in the total solar radiation energy, the ultraviolet with wavelength in the…

Cesium tungsten bronze powder is a type of infrared ultraviolet shielding material, which is the material of transparent thermal insulation coating. Energy is used almost everywhere in human’s life. And the major ones in energy consumption are building, agriculture, transportation and industry, among which building, which is closely related to human activities, accounts for a large proportion. Energy consumption in building includes the consumption of air conditioning in the summer. And most of the energy is lost through windows and…

Nano cesium tungstate powder (Cs2WO4) is a type of infrared ultraviolet shielding material developed in recent years, which may be prepared by ultrasonic chemical method. The obtained nano grain size cesium tungstate has the characteristics of small particle size, uniform dispersion, less agglomeration and high purity. Moreover, the ultrasonic chemical method is easy to operate with high efficiency. And this method has good reproducibility, which is conducive to industrialization. The nano cesium tungstate powder is suitable for heat/thermal insulation in…

Cesium tungstate is a type of infrared ultraviolet shielding material, which belongs to transparent dingal material. Cesium tungstate nanopowder has broad application prospect in many fields such as architectural window glass, auto window glass, and greenhouses as it has excellent near-infrared shielding performance and high transmission rate of visible light. At present, there are few studies on the preparation methods of nano cesium tungstate powder in China. There are just some preparation methods, such as solid phase method, liquid phase…