Heat shielding material and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9880331-B2
Application number	US-201514621060-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Dec 7, 2010
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A heat shielding material and method for manufacturing thereof is provided. The method for manufacturing the heat shielding material, includes: providing a tungsten oxide precursor solution containing a group VIIIB metal element; drying the tungsten oxide precursor solution to form a dried tungsten oxide precursor; and subjecting the dried tungsten oxide precursor to a reducing gas at a temperature of 100° C. to 500° C. to form a composite tungsten oxide. The heat shielding material includes composite tungsten oxide doped with a group I A or II A metal and halogen, represented by M x WO y or M x WO y A z , wherein M refers to at least one of a group I A or II A metal, W refers to tungsten, O refers to oxygen, and A refers to a halogen element. The heat shielding material also includes a group VIIIB metal element.

First claim

What is claimed is:

1. A heat shielding material, comprising:
a film, comprising:
(i) composite tungsten oxide doped with a group I A or II A metal and halogen, represented by formula (II):
M x WO y A z   (II),

wherein M refers to at least one of a group I A or II A metal, W refers to tungsten, O refers to oxygen, and A refers to a halogen element, and 0<x≦1, 2.2≦y+z≦3, and 0<Z≦0.2; and
(ii) a group VIIIB metal element
wherein the group VIIIB metal element is selected from the group consisting of Pt, Rh, and Pd.

2. The heat shielding material as claimed in claim 1 , wherein the heat shielding material is manufactured by a method comprising:
providing a tungsten oxide precursor solution containing a group VIIIB metal element;
coating the tungsten precursor solution on the glass or the transparent polymer substrate;
drying the tungsten oxide precursor solution to form a dried tungsten oxide precursor; and
subjecting the dried tungsten oxide precursor to a reducing gas at a temperature of 100° C. to 500° C. to form the composite tungsten oxide,
wherein the tungsten oxide precursor solution comprises (a) a tungsten oxide precursor, (b) a group I A or II A metal salt, (c) a group VIIIB metal, a group VIIIB metal oxide, a group VIIIB metal salt, or a combination thereof, and (d) a halogen salt.

3. A method for manufacturing a heat shielding material as claimed in claim 1 , comprising:
providing a tungsten oxide precursor solution containing a group VIIIB metal element;
coating the tungsten precursor solution on a glass or a transparent polymer substrate;
drying the tungsten oxide precursor solution to form a dried tungsten oxide precursor; and
subjecting the dried tungsten oxide precursor to a reducing gas at a temperature of 100° C. to 500° C. to form a composite tungsten oxide.

4. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the composite tungsten oxide is formed into a film.

5. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the glass is a tempered glass.

6. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the step of subjecting the dried tungsten oxide precursor to a reducing gas is at a temperature of 250° C. to 500° C.

7. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the step of subjecting the dried tungsten oxide precursor to a reducing gas proceeds for about 20 to 240 minutes.

8. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the tungsten oxide precursor solution comprises (a) a tungsten oxide precursor, (b) a group I A or II A metal salt, (c) a halogen salt, and (d) a group VIIIB metal, a group VIIIB metal oxide, a group VIIIB metal salt, or a combination thereof.

9. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the tungsten oxide precursor comprises ammonium metatungstate, ammonium orthotungstate, ammonium paratungstate, alkali metal tungstate, tungstic acid, tungsten silicide, tungsten sulfide, tungsten oxychloride, tungsten alkoxide, tungsten hexachloride, tungsten tetrachloride, tungsten bromide, tungsten fluoride, tungsten carbide, tungsten oxycarbide, or a combination thereof.

10. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the group I A or II A metal salt is represented by a formula of MpN, wherein M is a group I A or II A metal element comprising lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), or a combination thereof, and N is an anion or an anion group with negative valence, and 0.5≦p≦12.

11. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the group I A or II A metal salt comprises group I A or II A metal carbonate, group I A or II A metal hydrogen carbonate, group I A or II A metal nitrate, group I A or II A metal nitrite, group I A or II A metal hydroxide, group I A or II A metal halide, group I A or II A metal sulfate, group I A or II A metal sulfite, or a combination thereof.

12. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the group VIIIB metal, the group VIIIB metal oxide, or the group VIIIB metal salt comprises Pt, PtO 2 , H 2 PtCl 6 .H 2 O, H 2 PtCl 6 .6H 2 O, N 2 O 6 Pt, PtCl 4 , C 4 H 6 O 4 Pt, Ni, NiO, Ni 2 CO 3 , C 4 H 6 O 4 Ni.4H 2 O, NiCl 2 , H 8 N 2 NiO 8 S 2 .6H 2 O, NiCl 2 .6H 2 O, NiF 2 , NiBr 2 , NiCl 6 .6H 2 O, Rh, Rh 2 O 3 , RhCl 3 .H 2 O, N 3 O 9 Rh, C 4 H 9 O 6 Rh, Pd, PdO, H 2 O 2 Pd, N 2 O 6 Pd, PdBr 2 , C 4 H 6 O 4 Pd, PdCl 2 , or a combination thereof.

13. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the halogen salt is represented by a formula of PA q , wherein A is a halogen element comprises fluorine (F), chlorine (Cl), bromine (Br), or iodine (I), and P is a cation or a cation group with positive valence, and 1≦q≦12.

14. The method for manufacturing a heat shielding material as claimed in claim 8 , wherein the halogen salt comprises ammonium halide, alkylammonium salt, halocarbon, hydrogen halide, tungsten halide, benzene halide, halogenated aromatic, alkyl halide, or a combination thereof.

15. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein a pH value of the tungsten oxide precursor solution is over 7.

16. The method for manufacturing a heat shielding material as claimed in claim 3 , wherein the reducing gas is hydrogen.

17. The heat shielding material as claimed in claim 1 , wherein the heat shielding material further comprises a glass or a transparent polymer substrate, wherein the film is disposed on the glass or the transparent polymer substrate.

18. The heat shielding material as claimed in claim 1 , wherein the heat shielding material provides 50%-80% reflectance at an IR wavelength of about 1400-2600 nm.

Assignees

• Ind Tech Res Inst

Inventors

• Fu Huai-Kuang
• Jong Sung-Jeng
• Chen Jer-Young
• Chang Yih-Her
• Chung Pao-Tang

Classifications

• C23C18/1216

  Metal oxides (C23C18/1212 takes precedence) · CPC title

• Y10S977/775

  Nanosized powder or flake, e.g. nanosized catalyst · CPC title

• C01G41/02 Primary

  Oxides; Hydroxides · CPC title

• B05D3/0272

  with ovens · CPC title

• G02B5/208 Primary

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title