WO2022114038A1 - 断熱ガラス - Google Patents
断熱ガラス Download PDFInfo
- Publication number
- WO2022114038A1 WO2022114038A1 PCT/JP2021/043100 JP2021043100W WO2022114038A1 WO 2022114038 A1 WO2022114038 A1 WO 2022114038A1 JP 2021043100 W JP2021043100 W JP 2021043100W WO 2022114038 A1 WO2022114038 A1 WO 2022114038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- glass
- infrared reflective
- reflective layer
- overcoat layer
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 154
- 238000009413 insulation Methods 0.000 title abstract 2
- 239000000758 substrate Substances 0.000 claims abstract description 57
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 16
- 229910001887 tin oxide Inorganic materials 0.000 claims description 16
- 239000012212 insulator Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 239000005001 laminate film Substances 0.000 abstract 2
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 267
- 239000010408 film Substances 0.000 description 40
- 238000000034 method Methods 0.000 description 33
- 238000004088 simulation Methods 0.000 description 25
- 238000011156 evaluation Methods 0.000 description 22
- 239000002994 raw material Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 16
- 150000003606 tin compounds Chemical class 0.000 description 14
- 229910006404 SnO 2 Inorganic materials 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 230000003746 surface roughness Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000002243 precursor Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000011787 zinc oxide Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000004744 fabric Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 4
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 4
- DAMJCWMGELCIMI-UHFFFAOYSA-N benzyl n-(2-oxopyrrolidin-3-yl)carbamate Chemical compound C=1C=CC=CC=1COC(=O)NC1CCNC1=O DAMJCWMGELCIMI-UHFFFAOYSA-N 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 150000002222 fluorine compounds Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 150000001463 antimony compounds Chemical class 0.000 description 3
- YMLFYGFCXGNERH-UHFFFAOYSA-K butyltin trichloride Chemical compound CCCC[Sn](Cl)(Cl)Cl YMLFYGFCXGNERH-UHFFFAOYSA-K 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910003437 indium oxide Inorganic materials 0.000 description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 3
- 239000005368 silicate glass Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- LJCFOYOSGPHIOO-UHFFFAOYSA-N antimony pentoxide Chemical compound O=[Sb](=O)O[Sb](=O)=O LJCFOYOSGPHIOO-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000006018 Li-aluminosilicate Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000005385 borate glass Substances 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 229940117927 ethylene oxide Drugs 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
Definitions
- the present invention relates to heat insulating glass.
- Insulated glass having a function of reflecting infrared rays is used in various places such as window glass of buildings and glass members of vehicles (for example, Patent Document 1).
- the heat insulating glass has an infrared reflective layer installed on the glass substrate. Therefore, when infrared rays such as sunlight are applied to the heat insulating glass from the outside, the infrared rays are reflected by the infrared reflecting layer, and the ingress of heat into the room can be suppressed.
- the infrared reflective layer has excellent low radiation performance, and in winter, the heat in the room is not released to the outside, and the heating load can be reduced.
- the surface of the infrared reflective layer contained in the heat insulating glass has appropriate unevenness. Therefore, when an attempt is made to wipe off the dirt adhering to the surface with a cloth or the like, there is a problem that the dirt invades the concave portion and the dirt remains.
- the protective layer is installed on the infrared reflective layer, the color tone of the reflected color of the heat insulating glass deviates from the desired range, and there is a problem that a reflected color that makes people uncomfortable may occur.
- the present invention has been made in view of such a background, and in the present invention, when wiped with a cloth or the like, stains are suppressed from entering or remaining in the recesses, and the color tone of the reflected color is suppressed. It is an object of the present invention to provide a heat insulating glass that can be adjusted to a predetermined range.
- the present invention is a heat insulating glass having a glass substrate.
- the glass substrate has a first surface and a second surface facing each other.
- a laminated film is installed on the first surface of the glass substrate.
- the laminated film is formed from the side close to the glass substrate.
- Infrared reflective layer and Overcoat layer and Have The infrared reflective layer has an arithmetic average roughness Ra of the surface on the side of the overcoat layer of 9 nm to 24 nm.
- the overcoat layer is composed of an insulator and is arranged so as to fill the unevenness of the infrared reflective layer, and the arithmetic average roughness Ra of the surface on the side opposite to the infrared reflective layer is less than 7 nm.
- the overcoat layer provides a heat insulating glass having a refractive index in the range of 1.35 to 1.70 and a maximum thickness in the range of 120 nm to 241 nm.
- the present invention provides a heat insulating glass that suppresses dirt from entering or remaining in a recess when wiped with a cloth or the like, and can adjust the color tone of the reflected color within a predetermined range. can do.
- the conventional heat insulating glass has a problem that an infrared reflective layer having irregularities is exposed and dirt easily adheres to the surface.
- the present invention is a heat insulating glass having a glass substrate.
- the glass substrate has a first surface and a second surface facing each other.
- a laminated film is installed on the first surface of the glass substrate.
- the laminated film is formed from the side close to the glass substrate.
- Infrared reflective layer and Overcoat layer and Have The infrared reflective layer has an arithmetic average roughness Ra of the surface on the side of the overcoat layer of 9 nm to 24 nm.
- the overcoat layer is composed of an insulator and is arranged so as to fill the unevenness of the infrared reflective layer, and the arithmetic average roughness Ra of the surface on the side opposite to the infrared reflective layer is less than 7 nm.
- the overcoat layer provides a heat insulating glass having a refractive index in the range of 1.35 to 1.70 and a maximum thickness in the range of 120 nm to 241 nm.
- the refractive index of the layer is measured based on the provisions of JIS K7142: 2014.
- an overcoat layer composed of an insulator is formed on the infrared reflecting layer.
- This overcoat layer is arranged so as to fill the unevenness of the surface of the infrared reflecting layer. Further, the overcoat layer is configured so that the arithmetic average roughness Ra of the surface is less than 7 nm.
- the exposed surface of the heat insulating glass becomes a smooth surface, and the problem that dirt invades or remains in the recesses when wiped with a cloth or the like can be significantly suppressed. ..
- the refractive index of the overcoat layer is adjusted to the range of 1.35 to 1.70.
- the overcoat layer has a maximum thickness of 120 nm to 241 nm.
- the arithmetic average roughness Ra of the surface of the infrared reflective layer is adjusted in the range of 9 nm to 24 nm.
- the overcoat layer is composed of an insulator. This is to suppress the deterioration of the heat insulating property of the heat insulating glass. That is, when the overcoat layer is made of a conductor, the function of reflecting infrared rays is reduced, so that the heat insulating property may be lowered.
- the heat insulating glass according to the embodiment of the present invention can avoid such a problem.
- the "insulator” means a material having a sheet resistance of 1000 ⁇ / sq or more.
- FIG. 1 schematically shows an example of a cross section of a heat insulating glass (hereinafter, referred to as “first glass member”) according to an embodiment of the present invention.
- the first glass member 100 has a glass substrate 110 and a laminated film 120.
- the glass substrate 110 has a first surface 112 and a second surface 114 facing each other, and the laminated film 120 is installed on the side of the first surface 112 of the glass substrate 110.
- the laminated film 120 has an undercoat layer 130, an infrared reflective layer 140, and an overcoat layer 150 in the order of proximity to the glass substrate 110.
- the undercoat layer 130 is provided to adjust the refractive index of the first glass member 100. Further, the undercoat layer 130 may have a role of suppressing the sodium in the glass substrate 110 from diffusing into the infrared reflective layer 140 and reducing the heat insulating property. However, the undercoat layer 130 is a layer to be installed as needed and is not essential.
- the infrared reflective layer 140 has a role of reflecting infrared rays incident on the first glass member 100 from the side of the laminated film 120.
- the first glass member 100 has an overcoat layer 150 on the infrared reflecting layer 140.
- the overcoat layer 150 is configured to fill the irregularities on the surface of the infrared reflective layer 140. Further, on the surface of the overcoat layer 150, the arithmetic mean roughness Ra is less than 7 nm.
- the presence of the smooth overcoat layer 150 causes dirt to enter or remain in the recesses when the first glass member 100 is wiped with a cloth or the like. Can be suppressed.
- the overcoat layer 150 is made of a material having a refractive index in the range of 1.35 to 1.70, and has a maximum thickness in the range of 120 nm to 241 nm. There is. Further, the arithmetic average roughness Ra of the surface of the infrared reflective layer 140 on the side of the overcoat layer 150 is adjusted to be in the range of 9 nm to 24 nm.
- the reflected color can be adjusted within a predetermined range.
- the glass substrate 110 is made of, for example, soda lime silicate glass, aluminosilicate glass, borate glass, lithium aluminosilicate glass, quartz glass, borosilicate glass, non-alkali glass, or the like.
- the thickness of the glass substrate 110 is not particularly limited.
- the thickness of the glass substrate 110 may be in the range of 4 mm to 8 mm.
- the thickness of the glass substrate 110 may be 1 mm to 5 mm.
- the undercoat layer 130 is composed of, for example, a layer containing silicon oxide (SiO 2 ).
- the undercoat layer 130 may be, for example, an acid silicon carbide layer (SiOC).
- the undercoat layer 130 may be a laminated film.
- the undercoat layer 130 may be a multilayer of SiOC and SiO 2 , a multilayer of titanium oxide (TiO 2 ) and SiO 2 , or a multilayer of tin oxide (SnO 2 ) and SiO 2 in the order of proximity to the glass substrate 110. It may be composed of.
- the amount of silicon contained in the entire undercoat layer 130 is preferably in the range of 10 mol% to 40 mol%.
- the thickness of the undercoat layer 130 changes depending on the refractive index. For example, when the refractive index is in the range of 1.6 to 1.8, the thickness of the undercoat layer 130 is preferably in the range of 30 nm to 100 nm. When the undercoat layer 130 is a plurality of layers, the refractive index of the undercoat layer 130 is represented by the refractive index as a whole.
- the material constituting the infrared reflective layer 140 is not particularly limited as long as it has a function of reflecting infrared rays.
- the infrared reflective layer 140 may be composed of, for example, a layer containing tin oxide.
- the amount of tin oxide contained in the infrared reflective layer 140 is preferably 80 mol% or more.
- the infrared reflective layer 140 may be composed of fluorine and / or antimony-doped tin oxide or the like.
- the content of the dopant is preferably in the range of 0.01 to 0.2 in terms of the mol ratio of the dopant atom / tin atom.
- the thickness of the infrared reflective layer 140 is preferably 250 nm or more. When the thickness of the infrared reflective layer 140 is 250 nm or more, the heat insulating performance of the heat insulating glass is improved.
- the thickness of the infrared reflecting layer 140 is more preferably 309 nm or more, and even more preferably 384 nm or more.
- the thickness of the infrared reflective layer 140 is preferably 787 nm or less.
- the thickness of the infrared reflecting layer 140 is 787 nm or less, the transparency of the heat insulating glass in the visible light region can be ensured.
- the thickness of the infrared reflective layer 140 is more preferably 707 nm or less, and further preferably 617 nm or less.
- the infrared reflective layer 140 has an uneven shape on the side of the overcoat layer 150, the "thickness" varies depending on the location.
- the "thickness" of the infrared reflective layer 140 represents the minimum thickness of the infrared reflective layer 140 in the measurement region.
- the "thickness” of the overcoat layer 150 represents the maximum thickness of the overcoat layer 150 in the measurement region.
- the "thickness" of the infrared reflective layer 140 is represented by the total thickness of the multiple layers. The same applies to the overcoat layer 150.
- the arithmetic average roughness Ra of the surface of the infrared reflective layer 140 is adjusted to the range of 9 nm to 24 nm.
- the arithmetic average roughness Ra is preferably in the range of 12 nm to 24 nm.
- the overcoat layer 150 is made of a material having a refractive index in the range of 1.35 to 1.70.
- the overcoat layer 150 is composed of an insulator such as a metal oxide. By forming the overcoat layer 150 with an insulator, it is possible to significantly suppress a decrease in the heat insulating property of the first glass member 100.
- Materials for the overcoat layer 150 include, for example, silica (SiO 2 ), titania (TiO 2 ), zirconia (ZrO 2 ) and the like.
- the thickness of the overcoat layer 150 is in the range of 120 nm to 241 nm.
- the thickness of the overcoat layer 150 is preferably 134 nm or more. When the thickness of the overcoat layer 150 is 134 nm or more, it becomes easy to fill the unevenness of the infrared reflective layer 140, and the antifouling property of the heat insulating glass is improved.
- the thickness of the overcoat layer 150 is more preferably 138 nm or more.
- the thickness of the overcoat layer 150 is preferably 221 nm or less.
- the thickness of the overcoat layer 150 is 221 nm or less, the increase in visible light reflectance is suppressed and the aesthetic appearance is improved.
- the thickness of the overcoat layer 150 is more preferably 194 nm or less.
- the "thickness" of the overcoat layer 150 represents the maximum thickness of the overcoat layer 150 in the measurement region.
- the overcoat layer 150 is arranged so as to fill the unevenness on the upper part of the infrared reflecting layer 140.
- the first glass member 100 has a planar shape. However, this is only an example, and the first glass member 100 may have a curved surface shape.
- the flat first glass member 100 can be used, for example, for windowpanes of buildings and some vehicles such as buses and trucks.
- the curved surface-shaped first glass member 100 can be used for, for example, a vehicle in general.
- the first glass member 100 may be applied to at least one of a front window, a rear window, a side window, and a roof window.
- the manufacturing method thereof will be described by taking the first glass member 100 shown in FIG. 1 as an example.
- FIG. 2 schematically shows an example of a flow of a manufacturing method of the first glass member 100 (hereinafter, referred to as “first manufacturing method”).
- the first manufacturing method is (A) The step of installing the undercoat layer on the first surface of the glass substrate (step S110), (B) In the step of installing the infrared reflective layer on the undercoat layer (step S120), (C) In the step of installing the overcoat layer on the infrared reflective layer (step S130), Have.
- Step S110 First, the glass substrate 110 is prepared.
- the type of the glass substrate 110 is not particularly limited.
- the glass substrate 110 may be a soda lime silicate-based high-transparency glass.
- the undercoat layer 130 is arranged on the first surface 112 of the glass substrate 110.
- the undercoat layer 130 can be formed by using various film forming methods such as a chemical vapor deposition (CVD) method, an electron beam vapor deposition method, a vacuum vapor deposition method, a sputtering method, and a spray method.
- CVD chemical vapor deposition
- electron beam vapor deposition method vapor deposition
- vacuum vapor deposition method vapor deposition
- sputtering method a spray method.
- the undercoat layer 130 when the undercoat layer 130 is composed of the silicon oxide layer (SiO 2 ), the undercoat layer 130 may be formed by the atmospheric pressure CVD method.
- a gas raw material such as monosilane, tetraethoxysilane, and oxygen can be used as the raw material.
- the raw material gas may be mixed in advance and then conveyed onto the first surface 112 of the glass substrate 110.
- the raw material gas may be mixed on the first surface 112 of the glass substrate 110.
- the undercoat layer 130 is composed of an acid silicon carbide layer (SiOC)
- SiOC acid silicon carbide layer
- methane, ethylene, and / or acetylene or the like may be added to the raw material gas.
- Carbon-containing gas may be contained. When such a carbon-containing gas is used, it becomes easy to form a particulate silicon compound together with a film-shaped silicon compound, and the haze rate can be increased.
- the temperature of the glass substrate 110 when forming the undercoat layer 130 is preferably 500 ° C to 900 ° C. When the temperature of the glass substrate 110 is less than 500 ° C or higher than 900 ° C, the film formation rate tends to decrease.
- Step S120 Next, the infrared reflective layer 140 is formed on the undercoat layer 130.
- the infrared reflective layer 140 can be formed by using various film forming methods such as a chemical vapor deposition (CVD) method, an electron beam vapor deposition method, a vacuum vapor deposition method, a sputtering method, and a spray method.
- CVD chemical vapor deposition
- electron beam vapor deposition method vapor deposition
- vacuum vapor deposition method vapor deposition
- sputtering method a spray method.
- the infrared reflective layer 140 may be, for example, fluorine-doped tin oxide (SnO 2 : F), antimonated tin oxide (SnO 2 : Sb), tin-doped indium oxide (In 2 O 3 : Sn), or aluminum. It can be configured using various thin film materials such as doped zinc oxide (ZnO: Al) and gallium-doped zinc oxide (ZnO: Ga).
- the color tone can be adjusted within a predetermined range by making the surface of the infrared reflective layer relatively rough.
- the infrared reflective layer 140 is particularly preferably fluorine-doped tin oxide (SnO 2 : F) or antimony-doped tin oxide (SnO 2 : Sb). In this case, the unevenness of the surface of the infrared reflective layer can be increased.
- the infrared reflective layer 140 is made of, for example, aluminum-doped zinc oxide (ZnO: Al) or gallium-doped zinc oxide (ZnO: Ga), the crystal orientation tends to be aligned and the surface tends to be flat.
- Tin-doped indium oxide (In 2 O 3 : Sn) has a stronger function of reflecting infrared rays and is often used in a film thickness band of around 100 nm. Therefore, when the infrared reflective layer 140 is composed of tin-doped indium oxide (In 2 O 3 : Sn), it is difficult to adjust the color tone of the reflected color within a predetermined range, and the growth of crystal grains is insufficient. And the surface tends to be flat.
- the infrared reflective layer 140 when the infrared reflective layer 140 is composed of a fluorine-doped tin oxide layer (SnO 2 : F), the infrared reflective layer 140 may be formed by the atmospheric pressure CVD method. In this case, a mixture of an inorganic or organic tin compound and a fluorine compound is used as a raw material.
- a fluorine-doped tin oxide layer SnO 2 : F
- the tin compound examples include monobutyltin trichloride (C 4 H 9 SnCl 3 ) and tin tetrachloride (SnCl 4 ).
- the tin compound an organic tin compound is particularly preferable.
- an inorganic tin compound is used as the tin compound, the growth rate of the crystal grains is high and the surface unevenness tends to be severe.
- fluorine compound examples include hydrogen fluoride and trifluoroacetic acid.
- the infrared reflective layer 140 when the infrared reflective layer 140 is composed of an antimony-doped tin oxide layer (SnO 2 : Sb), the infrared reflective layer 140 may be formed by the atmospheric pressure CVD method. In this case, a mixture of an inorganic or organic tin compound and an antimony compound is used as a raw material.
- SnO 2 antimony-doped tin oxide layer
- an organic tin compound is particularly preferable.
- an inorganic tin compound is used as the tin compound, the growth rate of the crystal grains is high and the surface unevenness tends to be severe.
- antimony compound examples include antimony trichloride (SbCl 3 ) and antimony trichloride (SbCl 5 ).
- antimony trichloride is particularly preferable.
- antimony trichloride reacts violently with water in the source gas to form particle clusters of antimony trioxide (Sb 2 O 3 ) and antimony pentoxide (Sb 2 O 5 ) in the gas phase. Therefore, by including these particle clusters in the film, the degree of surface unevenness can be controlled.
- the infrared reflective layer 140 can also be configured by using a plurality of various thin film materials.
- the infrared reflective layer 140 is preferably configured by using an antimony-doped tin oxide layer (SnO 2 : Sb) and a fluorine-doped tin oxide layer (SnO 2 : F).
- SnO 2 : Sb antimony-doped tin oxide layer
- SnO 2 : F fluorine-doped tin oxide layer
- the raw material gas may be mixed in advance and then conveyed.
- the raw material gas may be mixed on the surface of the object to be filmed.
- the raw material may be vaporized into a gaseous state by using a bubbling method, a vaporizer, or the like.
- the amount of water per 1 mol of tin compound in the raw material gas is preferably 5 to 50 mol.
- the resistance value of the film to be formed tends to increase, and as a result, the infrared reflection function tends to decrease.
- the starting point of nucleation is reduced, and as a result, crystal grains are likely to grow large and the surface is likely to be uneven.
- the amount of water exceeds 50 mol
- the capacity of the raw material gas increases as the amount of water increases, and the flow velocity of the raw material gas increases, so that the film formation efficiency may decrease.
- the number of starting points for nucleation increases, and as a result, crystal grains tend to be small and easily grow, and the surface tends to be flat.
- the amount of oxygen per 1 mol of the tin compound in the raw material gas is preferably more than 0 mol and 40 mol or less, and more preferably 4 to 40 mol. If the amount of oxygen is less than 4 mol, the resistance value of the formed film may increase. On the other hand, if the amount of oxygen exceeds 40 mol, the capacity of the raw material gas increases and the flow velocity of the raw material gas increases, which may reduce the film forming efficiency.
- the amount of the fluorine compound with respect to 1 mol of the tin compound in the raw material gas is preferably 0.1 to 1.2 mol.
- the resistance value of the formed film tends to increase.
- the temperature of the glass substrate 110 when forming the infrared reflective layer 140 is preferably 500 ° C to 650 ° C. If the temperature of the glass is less than 500 ° C., the formation rate of the infrared reflective layer 140 decreases. Further, the rate at which the precursor produced by the decomposition of the raw material gas reacts on the surfaces of the glass substrate 110 and the infrared reflective layer 140 is higher than the rate at which the precursor is diffused on the surfaces of the glass substrate 110 and the infrared reflective layer 140. As a result, more precursors flow into the irregularities on the surface of the glass substrate 110 and the infrared reflective layer 140, and the surface tends to be flat.
- the film formation is carried out in a state where the viscosity of the glass is low, so that there is a possibility that warpage occurs in the process of lowering the temperature of the glass to room temperature.
- the rate at which the precursor reacts on the surfaces of the glass substrate 110 and the infrared reflecting layer 140 is higher than the rate at which the precursor diffuses on the surfaces of the glass substrate 110 and the infrared reflecting layer 140. As a result, the precursor does not flow into the irregularities on the surfaces of the glass substrate 110 and the infrared reflective layer 140 so much, and the irregularities on the surface tend to increase.
- steps S110 and S120 may be carried out by an online method in the process of producing glass with a float facility.
- the glass substrate manufactured by the float method may be reheated by the offline method to carry out the film formation.
- Step S130 Next, the overcoat layer 150 is installed on the infrared reflecting layer 140.
- the overcoat layer 150 is formed by, for example, a wet method.
- a coating solution for the overcoat layer 150 is prepared.
- the coating solution contains a precursor of a metal oxide, an organic solvent, and water. Particles and / or solids may also be added to the coating solution.
- the composition of the particles may be the same as or different from the precursor of the metal oxide.
- the coating solution is applied onto the infrared reflective layer 140 of the glass substrate 110.
- the method of application is not particularly limited, and general means such as a spin coating method may be used.
- the glass substrate 110 on which the coating solution is installed is heat-treated in the atmosphere.
- the temperature of the heat treatment is, for example, in the range of 80 ° C to 650 ° C.
- the heating time is, for example, in the range of 5 minutes to 360 minutes.
- the heat treatment may be carried out using a general device such as a hot air circulation furnace or an IR heater furnace. Further, the overcoat layer 150 may be formed from the coating solution by UV curing treatment, microwave treatment, or the like.
- the overcoat layer 150 can be formed on the infrared reflecting layer 140.
- the coating solution may be heated by utilizing the heating step carried out in another step.
- the first glass member 100 as shown in FIG. 1 described above can be manufactured.
- the above description is merely an example, and the heat insulating glass portion according to the embodiment of the present invention may be manufactured by another manufacturing method.
- the first manufacturing method may further include a step of air-cooling strengthening or chemically strengthening the glass substrate 110 (strengthening step).
- This strengthening step may be carried out in any order, for example, before step S110 or after step S130.
- the strength of the glass substrate 110 and further the first glass member 100 can be increased.
- first glass member 100 may be bent after step S130 or the like.
- a step of bonding another glass substrate to the first glass member 100 may be carried out.
- Example 2 is an example, and Examples 1, 3, and 4 are comparative examples.
- Example 1 Insulated glass was manufactured by the following method.
- a glass substrate with a thickness of 4 mm (soda lime silicate glass: manufactured by AGC Inc.) was prepared.
- the undercoat layer was a SiOC layer, and a film was formed by the CVD method.
- Monosilane, ethylene and carbon dioxide were used as the raw material gas, and nitrogen was used as the carrier gas.
- the target thickness of the undercoat layer was set to 56 nm.
- the infrared reflective layer was a fluorine-doped tin oxide layer (SnO 2 : F), and a film was formed by a CVD method.
- Monobutyltin trichloride (MBTC), water, air and trifluoroacetic acid were used as the raw material gas, and nitrogen was used as the carrier gas.
- the target thickness (minimum thickness) of the infrared reflective layer was set to 310 nm.
- the overcoat layer was a silica layer (SiO 2 ) and was formed by a wet method.
- a coating liquid containing alkoxysilane, nitric acid, water, and ethanol was prepared and spin-coated on the infrared reflective layer of the glass substrate. Then, it was held at 600 ° C. for 7 minutes in the atmosphere to form an overcoat layer.
- the target thickness (maximum thickness) of the overcoat layer was 68 nm.
- the refractive index of the overcoat layer was 1.45.
- sample A heat insulating glass
- Example 2 A glass member was manufactured by the same method as in Example 1.
- glass having a thickness of 3.2 mm (soda lime silicate glass; manufactured by AGC Inc.) was used as the glass substrate.
- the thickness of the infrared reflective layer was set to 367 nm, and the thickness of the overcoat layer was set to 140 nm.
- sample B heat insulating glass
- Example 3 A glass member was manufactured by the same method as in Example 1. However, in this example 3, the overcoat layer was not installed on the infrared reflecting layer.
- sample C heat insulating glass
- Example 4 A glass member was manufactured by the same method as in Example 2. However, in this example 4, the overcoat layer was not installed on the infrared reflecting layer.
- sample D heat insulating glass
- Table 1 summarizes the configurations of the laminated films in Samples A to D.
- the surface roughness of the laminated film of each sample was measured using an atomic force microscope (AFM) device (SPA-400; manufactured by Hitachi High-Tech Science Co., Ltd.).
- the evaluation region was a region of 2 ⁇ m ⁇ 2 ⁇ m in the substantially central portion of the surface of the laminated film.
- FIGS. 3 to 6 show profiles of surface irregularities obtained in Samples A to D, respectively.
- Table 2 summarizes the results of the arithmetic mean roughness Ra of the surface obtained in each sample.
- the infrared reflective layer of the sample A is formed by the same method and the same thickness as the sample C, the arithmetic average roughness Ra of the surface of the infrared reflective layer in the sample A is 12.0 nm. is expected.
- the arithmetic average roughness Ra of the surface of the infrared reflective layer in sample B is expected to be 15.6 nm.
- the haze rate (C light source haze rate) was measured using Samples A to D.
- the haze rate was evaluated using a haze meter (HZ-2; Suga Test Instruments Co., Ltd.).
- a spectrophotometer (Lambda 950; manufactured by PerkinElmer Japan Co., Ltd.) was used for the measurement. From the obtained spectrum, the reflectance Rv was determined based on ISO9050: 2003. Further, the color tone of the reflected light was determined based on JIS Z8781-4: 2013. The angle of incidence was 0 °.
- the heat insulating glass had the configuration shown in FIG. 1 described above, and the refractive index of the overcoat layer was changed to calculate the thickness of the overcoat layer for obtaining the target reflection characteristics.
- the mixed layer means an uneven layer existing between the infrared reflecting layer and the overcoat layer. That is, in the simulation, it is assumed that the infrared reflective layer and the overcoat layer are flat layers without unevenness, and that an uneven layer (mixed layer) having a predetermined surface roughness exists between them.
- the material of the mixed layer was assumed to be a mixture of 80% of the constituent material of the infrared reflective layer and 20% of the constituent material of the overcoat layer. This percentage was determined from the ratio of the thickness of the infrared reflective layer to the thickness of the overcoat layer.
- the target reflection characteristics are as follows: Reflectance Rv ⁇ 12% A * value ⁇ 4 in chromaticity coordinates (L * , a * , b * ) B * value ⁇ -4 in chromaticity coordinates (L * , a * , b * ).
- the color tone included in the target reflection characteristics is approximately in the blue to purple region.
- Simulation evaluation II Simulation evaluation I revealed that the thickness of the overcoat layer satisfying the target reflection characteristics is determined by setting the refractive index of the overcoat layer in the range of 1.25 to 1.75.
- the refractive index of the overcoat layer is determined, and the thickness of each layer contained in the laminated film (referred to as "center thickness") is determined.
- the color tone (chromaticity coordinates) of the reflected color obtained in this configuration is evaluated. The obtained result is defined as the center C of the distribution.
- the center thickness of each defined layer is varied within a range of ⁇ 5%, and the color tone (chromaticity coordinates) of the reflected color in each case is evaluated in the same manner. For all the results, the amount of deviation from the center C of the distribution is obtained, and the standard deviation ⁇ of the amount of deviation is calculated.
- the same evaluation is carried out by changing the refractive index of the overcoat layer.
- the refractive index of the overcoat layer was changed in the range of 1.25 to 1.75 obtained by the above-mentioned simulation evaluation I. Further, in any of the configurations, the arithmetic average roughness Ra of the mixed layer was set to 12 nm.
- Table 5 below shows the center thickness of each layer assumed for each refractive index of the overcoat layer.
- FIG. 7 summarizes the results obtained by the above simulation calculation.
- the horizontal axis is the refractive index of the overcoat layer, and the vertical axis is the standard deviation ⁇ .
- the refractive index of the overcoat layer in the range of 1.35 to 1.70 in this way, even if the thickness of each layer constituting the laminated film varies by about ⁇ 5%, the color tone of the heat insulating glass is adjusted. It was found that the fluctuation of the
- the target reflection characteristics are as follows: Reflectance Rv ⁇ 12% A * value ⁇ 4 in chromaticity coordinates (L * , a * , b * ) B * value ⁇ -4 in chromaticity coordinates (L * , a * , b * ).
- the color tone included in the target reflection characteristics is approximately in the blue to purple region.
- Simulation evaluation III revealed that the thickness of the overcoat layer satisfying the target reflection characteristics is determined by setting the surface roughness Ra of the mixed layer to 27 nm or less.
- the surface roughness of the mixed layer (arithmetic mean roughness Ra) is determined, and the thickness of each layer contained in the laminated film (referred to as "center thickness") is determined.
- the color tone (chromaticity coordinates) of the reflected color obtained in this configuration is evaluated. The obtained result is defined as the center C of the distribution.
- the thickness of each defined layer is varied within a range of ⁇ 5%, and the color tone (chromaticity coordinates) of the reflected color in each case is evaluated in the same manner. For all the results, the amount of deviation from the center C of the distribution is obtained, and the standard deviation ⁇ of the amount of deviation is calculated.
- the same evaluation is carried out by changing the surface roughness of the mixed layer.
- the arithmetic average roughness Ra of the mixed layer was changed in the range of 0 to 27 obtained by the above-mentioned simulation evaluation III.
- the refractive index of the overcoat layer was 1.45.
- Table 8 shows the center thickness of each layer assumed in each arithmetic mean roughness Ra of the mixed layer.
- FIG. 8 summarizes the results obtained by the above simulation calculation.
- the horizontal axis is the arithmetic mean roughness Ra of the surface of the mixed layer
- the vertical axis is the standard deviation ⁇ .
- the refractive index of the overcoat layer was set to 1.45. Further, the surface roughness (arithmetic mean roughness Ra) of the mixed layer is fixed at 12 nm, and the thickness of the infrared reflective layer is changed to obtain the target reflection characteristic and transmission characteristic. Was calculated. Other parameters used are shown in Table 9 below. These parameters were fixed.
- the target reflection and transmission characteristics are as follows: Reflectance Rv ⁇ 12% Transmittance Tv ⁇ 80% A * value ⁇ 4 in the reflection chromaticity coordinates (L * , a * , b * ) B * value ⁇ -4 in the reflection chromaticity coordinates (L * , a * , b * ).
- the reflected color tone included in the target characteristics is approximately in the blue to purple region.
- the thickness range of the overcoat layer satisfying the target characteristics at the refractive index of 1.45 exists in the range of the "maximum thickness" of 120 nm to 221 nm. I understood.
- First glass member 110 Glass substrate 112 First surface 114 Second surface 120 Laminated film 130 Undercoat layer 140 Infrared reflective layer 150 Overcoat layer
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Abstract
Description
前記ガラス基板は、相互に対向する第1の表面および第2の表面を有し、
前記ガラス基板の前記第1の表面には、積層膜が設置され、
該積層膜は、前記ガラス基板に近い側から、
赤外線反射層と、
オーバーコート層と、
を有し、
前記赤外線反射層は、前記オーバーコート層の側の表面の算術平均粗さRaが9nm~24nmであり、
前記オーバーコート層は、絶縁体で構成され、前記赤外線反射層の凹凸を埋めるように配置され、前記赤外線反射層とは反対の側の表面の算術平均粗さRaが7nm未満であり、
前記オーバーコート層は、1.35~1.70の範囲の屈折率を有し、最大厚さが120nm~241nmの範囲である、断熱ガラスが提供される。
前記ガラス基板は、相互に対向する第1の表面および第2の表面を有し、
前記ガラス基板の前記第1の表面には、積層膜が設置され、
該積層膜は、前記ガラス基板に近い側から、
赤外線反射層と、
オーバーコート層と、
を有し、
前記赤外線反射層は、前記オーバーコート層の側の表面の算術平均粗さRaが9nm~24nmであり、
前記オーバーコート層は、絶縁体で構成され、前記赤外線反射層の凹凸を埋めるように配置され、前記赤外線反射層とは反対の側の表面の算術平均粗さRaが7nm未満であり、
前記オーバーコート層は、1.35~1.70の範囲の屈折率を有し、最大厚さが120nm~241nmの範囲である、断熱ガラスが提供される。
以下、図1を参照して、本発明の一実施形態による断熱ガラスについて、具体的に説明する。
ガラス基板110は、例えば、ソーダライムシリケートガラス、アルミノシリケートガラス、ボレートガラス、リチウムアルミノシリケートガラス、石英ガラス、ホウケイ酸ガラス、または無アルカリガラス等で構成される。
アンダーコート層130は、例えば、酸化ケイ素(SiO2)を含む層で構成される。アンダーコート層130は、例えば、酸炭化ケイ素層(SiOC)であってもよい。
赤外線反射層140を構成する材料は、赤外線を反射する機能を有する限り、特に限られない。
前述のように、オーバーコート層150は、屈折率が1.35~1.70の範囲の材料で構成される。
次に、図2を参照して、本発明の一実施形態による断熱ガラスの製造方法の一例について説明する。
(a)ガラス基板の第1の表面に、アンダーコート層を設置するステップ(ステップS110)と、
(b)前記アンダーコート層の上に、赤外線反射層を設置するステップ(ステップS120)と、
(c)前記赤外線反射層の上に、オーバーコート層を設置するステップ(ステップS130)と、
を有する。
まず、ガラス基板110が準備される。
次に、アンダーコート層130の上に、赤外線反射層140が形成される。
次に、赤外線反射層140の上に、オーバーコート層150が設置される。
以下の方法により、断熱ガラスを製造した。
例1と同様の方法により、ガラス部材を製造した。
例1と同様の方法により、ガラス部材を製造した。ただし、この例3では、赤外線反射層の上にオーバーコート層を設置しなかった。
例2と同様の方法により、ガラス部材を製造した。ただし、この例4では、赤外線反射層の上にオーバーコート層を設置しなかった。
原子間力顕微鏡(AFM)装置(SPA-400;株式会社日立ハイテクサイエンス社製)を用いて、各サンプルの積層膜の表面粗さを測定した。
サンプルA~サンプルDを用いて、ヘイズ率(C光源ヘイズ率)の測定を行った。
サンプルA~サンプルDを用いて、反射率Rvおよび反射光の色調について評価した。
次に、断熱ガラスにおける積層膜の構成が反射色の色調に及ぼす影響を、シミュレーションにより評価した。
反射率Rv≦12%
色度座標(L*,a*,b*)におけるa*値≦4
色度座標(L*,a*,b*)におけるb*値≦-4。
シミュレーション評価Iにより、オーバーコート層の屈折率を1.25~1.75の範囲とすることにより、目標反射特性を満たすオーバーコート層の厚さが定められることがわかった。
前述の(シミュレーション評価I)と同様の評価を実施した。
シミュレーション評価IIIにより、混合層の表面粗さRaを27nm以下とすることにより、目標反射特性を満たすオーバーコート層の厚さが定められることがわかった。
前述の(シミュレーション評価I)と同様の評価を実施した。
反射率Rv≦12%
透過率Tv≦80%
反射色度座標(L*,a*,b*)におけるa*値≦4
反射色度座標(L*,a*,b*)におけるb*値≦-4。
110 ガラス基板
112 第1の表面
114 第2の表面
120 積層膜
130 アンダーコート層
140 赤外線反射層
150 オーバーコート層
Claims (6)
- ガラス基板を有する断熱ガラスであって、
前記ガラス基板は、相互に対向する第1の表面および第2の表面を有し、
前記ガラス基板の前記第1の表面には、積層膜が設置され、
該積層膜は、前記ガラス基板に近い側から、
赤外線反射層と、
オーバーコート層と、
を有し、
前記赤外線反射層は、前記オーバーコート層の側の表面の算術平均粗さRaが9nm~24nmであり、
前記オーバーコート層は、絶縁体で構成され、前記赤外線反射層の凹凸を埋めるように配置され、前記赤外線反射層とは反対の側の表面の算術平均粗さRaが7nm未満であり、
前記オーバーコート層は、1.35~1.70の範囲の屈折率を有し、最大厚さが120nm~241nmの範囲である、断熱ガラス。 - 前記赤外線反射層の最小厚さは、250nm~787nmの範囲である、請求項1に記載の断熱ガラス。
- 前記赤外線反射層は、酸化スズを含む、請求項1または2に記載の断熱ガラス。
- 前記オーバーコート層は、金属酸化物を含む、請求項1乃至3のいずれか一項に記載の断熱ガラス。
- さらに、前記ガラス基板と前記赤外線反射層との間に、酸化ケイ素を含むアンダーコート層を有する、請求項1乃至4のいずれか一項に記載の断熱ガラス。
- 車両用のガラス部材であって、
当該ガラス部材は、車両のフロントウィンドウ、リアウィンドウ、サイドウィンドウ、およびルーフウィンドウの少なくとも一つに適用され、
当該ガラス部材は、請求項1乃至5のいずれか一項に記載の断熱ガラスを含む、車両用のガラス部材。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11302038A (ja) * | 1998-04-17 | 1999-11-02 | Nippon Sheet Glass Co Ltd | 熱線反射性透光板およびこれを用いた熱線反射性複層透光板 |
JP2003522088A (ja) * | 1999-03-18 | 2003-07-22 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | 低曇り度コーティングの製法並びにそれにより製造したコーティング及び被覆された物品 |
JP2018076187A (ja) * | 2015-03-10 | 2018-05-17 | 旭硝子株式会社 | ガラス物品、および、その製造方法 |
JP2019064837A (ja) * | 2016-02-17 | 2019-04-25 | Agc株式会社 | 遮熱ガラス |
WO2019139008A1 (ja) * | 2018-01-11 | 2019-07-18 | 日本板硝子株式会社 | 薄膜付き基材の製造方法及び薄膜付き基材 |
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2021
- 2021-11-25 WO PCT/JP2021/043100 patent/WO2022114038A1/ja active Application Filing
- 2021-11-25 CN CN202180076822.6A patent/CN116547142A/zh active Pending
- 2021-11-25 JP JP2022565396A patent/JPWO2022114038A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11302038A (ja) * | 1998-04-17 | 1999-11-02 | Nippon Sheet Glass Co Ltd | 熱線反射性透光板およびこれを用いた熱線反射性複層透光板 |
JP2003522088A (ja) * | 1999-03-18 | 2003-07-22 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | 低曇り度コーティングの製法並びにそれにより製造したコーティング及び被覆された物品 |
JP2018076187A (ja) * | 2015-03-10 | 2018-05-17 | 旭硝子株式会社 | ガラス物品、および、その製造方法 |
JP2019064837A (ja) * | 2016-02-17 | 2019-04-25 | Agc株式会社 | 遮熱ガラス |
WO2019139008A1 (ja) * | 2018-01-11 | 2019-07-18 | 日本板硝子株式会社 | 薄膜付き基材の製造方法及び薄膜付き基材 |
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