Thermochromic material as well as preparation method and application thereof: Fid-Bau Portal

Thermochromic material as well as preparation method and application thereof

SHI YIXUAN / TANG TAO

The invention discloses a thermochromic material as well as a preparation method and application thereof, the thermochromic material is prepared from vanadium dioxide powder and a metal oxide, and the metal oxide comprises at least one of WO2, TiO2, CeO2 and MnO2; the preparation method comprises the following steps: mixing vanadium dioxide powder and a metal oxide in proportion, and then carrying out ball milling; carrying out vacuum high-temperature sintering on the ball-milled powder to obtain the thermochromic material; according to the application of the thermochromic material, the thermochromic material is sprayed on the surface of a container for packaging the cold storage material; the thermochromic material formed after the vanadium dioxide is doped with the metal oxide is thermochromic in the temperature interval of-50-20 DEG C, the thermochromic material is plated on the surface of a container for packaging the cold storage material, so that the cold storage material is discolored when the temperature reaches-50-20 DEG C, and the temperature is the temperature interval commonly used in the medical cold chain industry; and an operator can intuitively and efficiently judge whether cold release of the cold storage material is finished or not.

本发明公开一种感温变色材料、制备方法及其应用，感温变色材料由二氧化钒粉体和金属氧化物制成，金属氧化物包括WO2、TiO2、CeO2、MnO2中的至少一种；制备方法包括：将二氧化钒粉体和金属氧化物按比例混合，然后球磨；将球磨后的粉末进行真空高温烧结，得到感温变色材料；感温变色材料的应用，感温变色材料喷镀于包装蓄冷材料的容器表面；本发明中的二氧化钒掺杂金属氧化物后形成的感温变色材料在温度区间为‑50～20℃感温变色，将该感温变色材料镀在包装蓄冷材料的容器表面，使蓄冷材料在达到温度为‑50～20℃时发生变色，该温度是医疗冷链行业常用的温度区间，操作工人可以直观高效的判断蓄冷材料是否释冷结束。

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