Beijing University of Chemical Tehcnology

Changzhou Institute of Advanced Material of Beijing University of Chemical Technology

Chizhou Enp Technology Co., Ltd.

Xiaofei Zeng

Jianfeng Chen

Zhigang Shen

Jianbo Sun

Jimmy Sung Lai Yun

Jiexin Wang

Xingwei Han

The present invention is related to a method for preparing VIB Group metal oxide particles or dispersions, wherein the VIB Group metal is tungsten or molybdenum. The methods include: 1) providing precursors of VIB Group metal oxide, reductants and supercritical fluids. 2) said VIB Group metal oxide particles, or dispersions are obtained by the reaction between said metal oxide precursors, and reductants are under supercritical state in said supercritical fluids. Especially, said VIB Group metal oxide can be tungsten bronze, molybdenum bronze, or tungsten and molybdenum bronze which can be present by the formula ABMO. Wherein, A represents element exists in the form of dopant cation; and B represents element exists in the form of dopant anion; O represents oxygen; 0&#x2264;x&#x2264;1, 0&#x2264;y&#x2264;1, 0&#x3c;x+y&#x2264;1, and 2&#x2264;z&#x2264;3. The said VIB Group metal oxide particles and dispersions can be applied to the glasses of houses, buildings, automobiles, ships etc, with high transparency and NIR and UV lights shielding properties, by which the control of sunlight and heat radiation can be achieved.

Preparation methods and uses of doped VIB group metal oxide nanoparticles or dispersions thereof

Disclosed is a transparent, flame-retardant thermally-insulating, UV-blocking polymer composite film, comprising sequentially from the top: a flame retardant layer, a base layer, a thermal insulation layer, and a UV-blocking layer, having a total film thickness of 1 &#x3bc;m to 500 &#x3bc;m, visible light transmittance greater than 80%, UV light transmittance less than 1%, and near-infrared transmittance less than 10%. Also disclosed is a preparation method for the present transparent, flame retardant thermally-insulating, UV-blocking polymer composite film, the technical processes whereof are simple and easy to execute, involve low production costs, and are suitable for industrial mass production. The present transparent, flame retardant thermally-insulating, UV-blocking polymer composite film can be used on such transparent materials and items as glass, windows, protective films, containers and electronic components, and has applications in such fields as construction, transportation, electronics, aerospace and medicine.

Transparent flame-retardant thermal-insulating UV-blocking polymer composite film, preparation method and uses thereof

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Beijing, China

Xiaofei Zeng