Composition for producing a poly (vinyl chloride) protective thermal radiation, method of producing the composition and film of poly (vinyl chloride) protective thermal radiation

摘要

A method of manufacturing a composition used for manufacturing a poly (vinylchloride) protective thermal radiation, comprising the steps of: obtaining a dispersion liquid by dispersing nanoparticles of tungsten oxide expressed by a formula 5 General WOx ( satisfying 2.45 = x = 2.999) and / or nanoparticles of composite tungsten oxide expressed by a general formula MyWOz (wherein M is one or more kinds of elements selected from Cs, Rb, K, Tl, in , Ba, Li, Ca, Sr, Fe, Sn, Al and Cu, satisfying 0.1 = y = 0.5, 2.2 = z = 3.0) and having a hexagonal crystal structure and a dispersant having a hydroxyl group, a carboxy group or an epoxy group as functional groups, in an organic solvent having a boiling point of 120 ° C or below, adjusting an amount of addition of the dispersant in the range of 0, 1 to 4 times in a weight ratio of oxide nanoparticles tungsten and / or nanoparticles of composite tungsten oxide, and the concentration of the nanoparticles of tungsten oxide and / or tungsten oxide nanoparticles in the organic solvent composed of 5% by weight to 50% by weight; obtaining a mixture by mixing a plasticizer for manufacturing a poly (vinylchloride), in this dispersion liquid; and obtain a composition for film of poly (vinyl chloride) protective thermal radiation using a method of vacuum distillation and removing the organic solvent from this mixture until a concentration of the organic solvent is 5% by weight or less.