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Tungsten oxide, which may be applied for producing thermal insulation paper, may be prepared by hydrothermal/solvent method (high pressure solution method). This production method is a common method of crystal growth. Preparation of Tungsten Oxide by Hydrothermal/Solvothermal Method A tungsten trioxide nanowire array can be synthesized by hydrothermal method. Compared to the sintering process, the process has a lower synthesis temperature, so that fewer defects are generated in the crystal during growth. Compared to the atmospheric pressure heating method, a…

Tungsten oxide may be applied for the manufacturing of thermal insulation masterbatch, and therefore be applied in many other different fields, such as heat insulating films in building glasses. The tungsten oxide powder may be prepared by template method. Preparation of Tungsten Oxide by Template Method The 3D ordered macroporous tungsten trioxide of anti-cobble structure can be synthesized by the colloidal template method using PMMA microspheres. The PMMA microspheres were immersed in the tungsten precursor solution, and excess tungsten precursor…

Tungsten oxide, which may be applied for preparing nano-ceramic color master, may be prepared by pulsed laser ablation (abbreviated as PLA). Laser ablation is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. Preparation of Tungsten Oxide by Pulsed Laser Ablation Method Leaf-shaped tungsten trioxide can be prepared by pulsed laser ablation in a liquid medium. The tungsten foil was placed in distilled water, and then the tungsten foil was…

Tungsten oxide nanopowder, which may be used for manufacturing thermal insulation dispersion, may be prepared by vapor phase deposition method. Preparation of Tungsten Oxide by Vapor Deposition Method The tungsten trioxide powder was placed in a quartz tube, and a tungsten sheet was placed as a substrate in a section of the quartz tube. Then, tungsten trioxide powder was heated and passed through N2. After a while, a layer of purple product was obtained on the tungsten sheet. And it…

Tungsten oxide nanopowder, which may be applied for the production of thermal insulation dispersion liquid, may be prepared by chemical precipitation method – a type of liquid phase method. Preparation of Tungsten Oxide by Chemical Precipitation Method The SnO2-WO3 powder can be synthesized by chemical precipitation method. Specific processes are shown as below. The sodium tungstate and the tin tungstate solution are uniformly mixed, and then the solution is slowly dropped into boiling dilute sulfuric acid, and the obtained precipitate…

Tungsten oxide nanopowder is a kind of near infrared shielding material, which has certain development and application on the surface of transparent glasses such as ordinary glass, PMMA (polymethyl methacrylate) and the like. The tungsten oxide heat insulating material is not only economical and practical, but also energy-saving and environmentally friendly. And therefore it has great potential for market development. Today, energy and the environment have become two major issues that are attracting more and more attention from the whole…

Tungsten nanopowder powder is a type of infrared thermal insulation nano material, which can be used in building glasses to shield the heat source in sunlight, meeting the concept of building energy conservation and environmental protection. At present, there are two main ways to carry out energy-saving renovation of glass in existing buildings. One is to coat a film on glass. This kind of heat-insulating film of tungsten oxide is generally applied in high-grade automotive glass and high-end residential glass.…

Tungsten oxide nanopowder is a kind of transparent thermal insulation nanopowder, which may be applied to the glasses of buildings or vehicles in the form of heat-insulating film. And it plays the role of heat insulation and energy saving in this field. Thermal insulation glass of tungsten oxide is better than coated glass of other metals, non-metals and oxide films thereof as these glasses have a certain reflection effect on solar heat, which will seriously affect the transmittance of visible…

Tungsten oxide nanopowder may be used as an infrared ultraviolet shielding material, which is mainly used in heat insulating glass. Compared with low emissivity (low-e) glass, such smart glass of tungsten oxide is generally more economical and environmentally friendly even if low-e glass also has high transmittance to visible light and better infrared shielding rate. However, the price of low-e glass is more than 300RMB per square meter, which is difficult to popularize in ordinary houses. Besides, tungsten oxide can…

Tungsten oxide nanopowder is a new type of transparent thermal insulation material. Such thermal insulation material is also a new high-tech product, which is economic, fast and environmentally friendly with excellent effects. It mainly shows that the overall strength of the thermal insulation material of tungsten oxide is strong with long service life. And there is usually no maintenance costs. Nano transparent thermal insulation material is mainly applied in the form of thin film for thermal insulation of buildings and…