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Fabrication of thermochromic composite films using transition temperature controlled VO2 fine particles

机译:用转变温度控制的VO 2 细颗粒制备热致变色复合膜

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A vanadium oxide based precursor fine powder was prepared by the reaction of vanadium metal and W-IPA H2O2 aqueous solution, and non-doped VO2 or W-doped VO2 fine powder was obtained by heat-treatment of the precursor powder at 650°C in an H2/Ar atmosphere. Composite films were fabricated using the non-doped or W doped VO2 fine powder and transparent urethane resin. The resulting composite films showed a reversible thermochromic property. The transition temperature of the composite using non-doped VO2 powder was 68.9°C, and that of the composite using 1% W doped VO2 powder was 46.3°C.
机译:通过钒金属与W-IPA H 2 O 2 水溶液与非掺杂VO 2 <通过在H 2 / Ar气氛中在650°C下对前体粉末进行热处理,获得/ sub或W掺杂的VO 2 细粉。采用无掺杂或掺W的VO 2 细粉和透明聚氨酯树脂制备复合膜。所得复合膜显示出可逆的热致变色性质。使用未掺杂的VO 2 粉末的复合材料的转变温度为68.9℃,使用1%的W掺杂的VO 2 粉末的复合材料的转变温度为46.3℃。

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