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A platform for research: civil engineering, architecture and urbanism
HEAT SHIELDING MATERIAL
PROBLEM TO BE SOLVED: To provide a heat shielding material which can allow heat shielding properties thereof to be made excellent even if a metal is not used therein and which can keep transmissivity of visible light and an electromagnetic wave.SOLUTION: The heat shielding material has a structure containing: particles each having 90-350 nm average particle size; and 1.0-2.5 refractive index n; and a compound having 1.05-1.9 refractive index n. The refractive index nof the particle is made different from that nof the compound. The structure reflects the light having a specific wavelength in a wavelength range of 780-1,200 nm. The reflection-peak wavelength λis calculated by using: an incident angle θ of the light made incident on the surface of the structure; the average interparticle distance among the particles in the depth direction from the surface of the structure; and the average reflective index nof the structure. The reflection-peak wavelength λof the reflected light, which is reflected from the structure, when light is made incident on the surface thereof, and has the maximum reflective index, is measured. The calculated reflection-peak wavelength λand the measured reflection-peak wavelength λsatisfy a relationship shown by a specific expression. The heat shielding material has 50% or higher visible light transmittance.
【課題】金属を使わずとも遮熱性に優れ、かつ、可視光及び電磁波の透過性を維持できる遮熱材料を提供すること。【解決手段】本発明は、平均粒径が９０〜３５０ｎｍであり、屈折率ｎａが１．０〜２．５である粒子と屈折率ｎｂが１．０５〜１．９である化合物とを含む構造体を有する遮熱材料であって、粒子の屈折率ｎａと化合物の屈折率ｎｂとは異なっており、構造体が７８０〜１２００ｎｍの波長領域に含まれる特定波長の光を反射し、構造体の表面に入射させた光の入射角θ、構造体の表面から深さ方向における粒子の平均粒子間距離ｄ及び構造体の平均屈折率ｎｅｆｆから算出された反射ピーク波長λｃａｌと、構造体の表面に入射させた光の反射光のうち、反射率が最大となる実測の反射ピーク波長λｅｘｐと、が特定の式で表される関係を満たし、可視光透過率が５０％以上である遮熱材料に関する。【選択図】なし
HEAT SHIELDING MATERIAL
PROBLEM TO BE SOLVED: To provide a heat shielding material which can allow heat shielding properties thereof to be made excellent even if a metal is not used therein and which can keep transmissivity of visible light and an electromagnetic wave.SOLUTION: The heat shielding material has a structure containing: particles each having 90-350 nm average particle size; and 1.0-2.5 refractive index n; and a compound having 1.05-1.9 refractive index n. The refractive index nof the particle is made different from that nof the compound. The structure reflects the light having a specific wavelength in a wavelength range of 780-1,200 nm. The reflection-peak wavelength λis calculated by using: an incident angle θ of the light made incident on the surface of the structure; the average interparticle distance among the particles in the depth direction from the surface of the structure; and the average reflective index nof the structure. The reflection-peak wavelength λof the reflected light, which is reflected from the structure, when light is made incident on the surface thereof, and has the maximum reflective index, is measured. The calculated reflection-peak wavelength λand the measured reflection-peak wavelength λsatisfy a relationship shown by a specific expression. The heat shielding material has 50% or higher visible light transmittance.
【課題】金属を使わずとも遮熱性に優れ、かつ、可視光及び電磁波の透過性を維持できる遮熱材料を提供すること。【解決手段】本発明は、平均粒径が９０〜３５０ｎｍであり、屈折率ｎａが１．０〜２．５である粒子と屈折率ｎｂが１．０５〜１．９である化合物とを含む構造体を有する遮熱材料であって、粒子の屈折率ｎａと化合物の屈折率ｎｂとは異なっており、構造体が７８０〜１２００ｎｍの波長領域に含まれる特定波長の光を反射し、構造体の表面に入射させた光の入射角θ、構造体の表面から深さ方向における粒子の平均粒子間距離ｄ及び構造体の平均屈折率ｎｅｆｆから算出された反射ピーク波長λｃａｌと、構造体の表面に入射させた光の反射光のうち、反射率が最大となる実測の反射ピーク波長λｅｘｐと、が特定の式で表される関係を満たし、可視光透過率が５０％以上である遮熱材料に関する。【選択図】なし
HEAT SHIELDING MATERIAL
遮熱材料
ICHIHASHI YASUHISA (author) / MORISHITA MASATSUGU (author)
2015-11-26
Patent
Electronic Resource
Japanese
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
| European Patent Office | 2017
OUTDOOR HEAT SHIELDING MATERIAL AND OUTDOOR HEAT SHIELDING STRUCTURE
| European Patent Office | 2016