Thermochromic film and thermochromic complex

摘要

An object of the present invention is to provide a thermochromic film and a thermochromic complex containing vanadium dioxide particles exhibiting excellent thermochromicity and durability.The thermochromic film of the present invention is a thermochromic film having an optical functional layer containing at least one thermochromic vanadium dioxide particle and binder resin on a transparent substrate, and the binder tree The moisture content of the optical functional layer, which has a reactive functional group and is water-soluble, and has been left for 24 hours at 80 degrees Celsius and 80% humidity, is within the range of 0.5 to 5.0 g / m2, and the thickness of the optical functional layer is 0.5 to 5.0It is characterized by the fact that it is within the range.