Base material with infrared reflection multilayer film and manufacturing method of base material with infrared reflection multilayer film

摘要

PROBLEM TO BE SOLVED: To provide a base material with an infrared-reflective multilayer film having stain resistance, which is comprised of an inorganic material that is highly reflective to infrared light and highly transparent to visible light, and features high heat dissipation efficiency, high hardness, and long-term weatherability.SOLUTION: A base material 1 with an infrared-reflective multilayer film is provide, comprising a base material 10, infrared-blocking inorganic film 20, low refractive index inorganic film 30, and high refractive index inorganic film 40 laminated in the described order. Preferably, the infrared-blocking inorganic film 20 and the low refractive index inorganic film 30 contain silica nanoparticles, and the high refractive index inorganic film 40 contains niobium oxide nanoparticles and nanodiamond nanoparticles.SELECTED DRAWING: Figure 1