Nano yellow tungsten oxide powder may be used to produce thermal insulation dispersion, which is a type of slurry that has the best absorption of near-infrared rays. The dispersion not only has superior absorption characteristics in the near-infrared region, but also has strong translucency in the visible light region. Its near-infrared absorption rate at 950nm can reach more than 90%, while the visible light transmittance at 550nm reaches more than 70%. A near-infrared shielding coating with the best transmittance of…

Nano yellow tungsten oxide powder may be applied for the manufacture of thermal insulation dispersion liquid so that the dispersion liquid has the advantages of high heat insulation, energy saving, environmental protection, flame retardancy, water resistance, acid resistance, alkali resistance, convenient construction, easy promotion, and long service life, etc. And therefore, this kind of dispersion liquid of high thermal insulation ding is often used under general working condition. Yellow tungsten oxide is also known as tungsten trioxide. The mesoporous tungsten…

Yellow tungsten oxide powder applying for thermal insulation dispersion may be prepared by low temperature hydrothermal method. Preparation of Yellow Tungsten Oxide Powder by Low Temperature Hydrothermal Method Step one: Weigh 3.000g sodium tungstate and 0.0050g PVP, and dissolve them in 30mL distilled water, then stir well. Step two: Add 3mL of the above solution dropwise into 5mL HCl with a concentration of 3mol•L-1, and stir for 0.5h. 3. Transfer the yellow solution obtained in the step two into the…

Yellow tungsten oxide powder may be applied for the production of thermal insulation dispersion liquid. When the dispersion liquid is used, it should normally be combined with various resins, solvents and additives. And the compatibility should be confirmed before use. Store the dispersion liquid in a cool, well-ventilated place. Yellow tungsten oxide is an important inorganic photochromic material, which has the advantages of good stability and low cost. Therefore, it has potential application prospects in image display, optical recording, smart…

Thermal insulation master batch prepared using yellow tungsten oxide powder as raw material has excellent heat insulation performance and can be used for the preparation of heat-insulating films or plates. And the yellow tungsten oxide can be prepared by chemical precipitation method, whose specific preparation processes are as described below. Preparation of Yellow Tungsten Oxide Powder by Chemical Precipitation Method The first step: Weigh 3.000g of sodium tungstate and 0.0050g of PVP, dissolve them in 30mL of distilled water, and…

Nano yellow tungsten oxide is an important type of inorganic nanomaterial that has a lot of excellent characteristics such as photochromism, and electrochromism, etc. And thus it can be used for preparing thermal insulation dispersion liquid. Moreover, it can be applied for producing thermal materials, such as heat insulation films, heat insulation papers, and the like. Certainly, yellow tungsten oxide nanopowder should be studied to better use it in the field of heat insulation and the like. By hydrothermal method,…

Nano yellow tungsten oxide is a type of one-dimensional nano material with special grain size and phase structure, which can bring novel and excellent performance for the preparation of thermal insulation master batch. Thus, yellow tungsten oxide has attracted much attention. And therefore, it is necessary to do some related researches on yellow tungsten oxide nanomaterial to better understand its mechanism for applying in the field of thermal insulation. The yellow tungsten oxide nanorods of hexagonal phase can be prepared…

Yellow tungsten oxide has potential in the application of thermal insulation materials, such as thermal insulation dispersion, as it has good light absorption capability of ultraviolet light and near-infrared light, which means it has high heat insulation performance. And the dispersion also has high light transmittance of visible light. One-dimensional nanomaterials have attracted much attention as their low dimensionality and special size can bring novel and excellent properties to the product using this type of material as raw material. Therefore,…

Yellow tungsten oxide, i.e., tungsten trioxide (WO3), may be applied for the preparation of thermal insulation dispersion liquid. Studying the growth mechanism of yellow tungsten oxide nanorods helps to understand the characteristics of the dispersion liquid. WO3 nanorod may be synthesized using sodium salt as a directing agent. While the product does not show a rod-like morphology using sulfate as a directing agent. Therefore, it is supposed that Na+ plays a decisive role in the formation of WO3 nanorods. The…

Tungsten trioxide nanopowder applying for ceramic microsphere may be obtained by calcining pyrochlore-type tungsten trioxide (WO3•0.5H2O) with high purity. It is worth to note that the WO3•0.5H2O may be a feasible direction for further development of tungsten smelting. Therefore, it is necessary to pay attention to the preparation method of WO3•0.5H2O. Under hydrothermal conditions, ultrafine pyrochlore-type tungsten trioxide powders may be prepared directly from sodium tungstate solution using pure tungsten trioxide (WO3) as an additive. The results showed that the…