JP2003226560A - Double-glazed unit - Google Patents
Double-glazed unitInfo
- Publication number
- JP2003226560A JP2003226560A JP2003034615A JP2003034615A JP2003226560A JP 2003226560 A JP2003226560 A JP 2003226560A JP 2003034615 A JP2003034615 A JP 2003034615A JP 2003034615 A JP2003034615 A JP 2003034615A JP 2003226560 A JP2003226560 A JP 2003226560A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- film
- glass
- tio
- titanium oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims abstract description 51
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 20
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000484 niobium oxide Inorganic materials 0.000 claims abstract description 6
- 239000010955 niobium Substances 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 53
- 230000003373 anti-fouling effect Effects 0.000 claims description 19
- 239000011941 photocatalyst Substances 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 54
- 230000001699 photocatalysis Effects 0.000 description 11
- 238000000354 decomposition reaction Methods 0.000 description 9
- 239000002585 base Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 7
- 239000005357 flat glass Substances 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000008842 sick building syndrome Diseases 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 1
- 102100032768 Complement receptor type 2 Human genes 0.000 description 1
- 101150042515 DA26 gene Proteins 0.000 description 1
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 1
- 101000941929 Homo sapiens Complement receptor type 2 Proteins 0.000 description 1
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 1
- 101000878605 Homo sapiens Low affinity immunoglobulin epsilon Fc receptor Proteins 0.000 description 1
- 102100038007 Low affinity immunoglobulin epsilon Fc receptor Human genes 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防汚機能と断熱機
能および日射遮断機能を備えた、窓ガラス用として好適
な複層ガラスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double glazing having antifouling function, heat insulating function and solar radiation blocking function and suitable for window glass.
【０００２】[0002]
【従来の技術】酸化チタン（ＴiＯ２）は光触媒として
知られている。そして表面に酸化チタン膜を形成したガ
ラスは、紫外線を照射すると光励起により当該酸化チタ
ン膜表面が高度に活性化され、親水性、防曇性、自己浄
化性等を示すようになる。そして、高い光触媒活性を有
する酸化チタン膜は、蛍光燈から漏れる微弱な紫外光で
あっても活性を維持、または回復させることができる。
そのため、この光触媒の用途は広く、例えば建造物、自
動車、電車、飛行機、船舶用の窓ガラス、自動車、浴
室、カーブミラー用の鏡、光学レンズ等に好適に使用さ
れている。 2. Description of the Related Art Titanium oxide (TiO 2 ) is known as a photocatalyst. When the glass having the titanium oxide film formed thereon is irradiated with ultraviolet rays, the titanium oxide film surface is highly activated by photoexcitation and exhibits hydrophilicity, antifogging property, self-cleaning property and the like. Further, the titanium oxide film having a high photocatalytic activity can maintain or recover the activity even with the weak ultraviolet light leaking from the fluorescent lamp.
Therefore, this photocatalyst has a wide range of applications, and is suitably used, for example, in window glass for buildings, automobiles, trains, airplanes, ships, automobiles, bathrooms, mirrors for curved mirrors, optical lenses and the like.
【０００３】また、防汚ガラスとしては、上記光触媒に
よる親水化ガラス以外に、フッ素もしくはシリコーン系
の撥水剤をガラス表面にコーティングしたものがある。
この撥水ガラスは、水分を弾く作用があるため、汚れが
付きにくくかつ付いた汚れも清掃で簡単に除去すること
ができる。As the antifouling glass, there is a glass surface coated with a fluorine- or silicone-based water repellent agent in addition to the above-described photocatalytically hydrophilic glass.
Since this water-repellent glass has a function of repelling water, it is difficult for stains to adhere, and the stains can be easily removed by cleaning.
【０００４】例えば、ガラス基板の表面に下地層として
ＳｉＯ２を形成し、この上にＴiＯ ２膜を形成した防汚
ガラスが知られている。（特許文献１）
また複層ガラスとしては、外側ガラス板の室内側となる
面および内側ガラス板の室外側となる面のそれぞれにＴ
iＯ２膜を形成したものが知られている。（特許文献
２）For example, as a base layer on the surface of a glass substrate
SiOTwoTo form TiO on this TwoAntifouling formed film
Glass is known. (Patent Document 1)
Also, as double glazing, it will be the inner side of the outer glass plate.
On each surface and the surface of the inner glass plate that is the outdoor side
iOTwoIt is known that a film is formed. (Patent document
2)
【０００５】[0005]
【特許文献】特許文献１：特許第３２５８０２３号公報
請求項７
特許文献２：特開平９−２５５３６６号公報、段落（０
０１７）及び図４[Patent Document] Patent Document 1: Japanese Patent No. 3258023 Claim 7 Patent Document 2: Japanese Patent Application Laid-Open No. 9-255366, paragraph (0
017) and FIG.
【０００６】[0006]
【発明が解決しようとする課題】窓ガラスに要求される
機能は、防汚性以外にも様々なものがあるが、従来の撥
水ガラスや親水ガラスはこの点を考慮していなかったた
め、防汚性と、断熱機能および日射遮断機能を同時に達
成する窓ガラスがなかった。Although the window glass has various functions other than the antifouling property, the conventional water-repellent glass and hydrophilic glass have not taken this point into consideration. There was no window glass that simultaneously achieved the stain resistance and the heat insulation function and the solar radiation blocking function.
【０００７】更に、例えば室温を保つための断熱性、太
陽熱等による室温上昇を防御するための遮熱性に優れ、
ガラスが割れにくく、また、割れた場合にも破片で怪我
をしないための安全性、外部からの騒音や室内からの楽
器、音楽等の漏れを防止する防音性をも有する機能性ガ
ラスが望まれている。Furthermore, for example, the heat insulating property for keeping the room temperature and the heat shielding property for protecting the room temperature from rising due to solar heat are excellent,
A functional glass that is hard to break and is also safe to prevent injuries from broken pieces even if it breaks, and also has soundproof properties to prevent noise from the outside and leakage of musical instruments and music from the room is desired. ing.
【０００８】上記課題を解決するため、本発明の複層ガ
ラスは、２枚のガラス板間に空気層や窒素ガスを介在せ
しめた複層ガラスであって、この複層ガラスを構成する
外側ガラス板の室外側となる面に光触媒層を含む親水性
防汚処理膜を形成し、また前記複層ガラスを構成する内
側ガラス板の室外側となる面に低放射率多層膜を形成す
るか、外側ガラス板の室内側となる面に低放射率多層膜
を形成した。このような構成とすることで、親水性に基
づいた防汚機能、高い断熱機能及び適度な日射遮蔽機能
を同時に満足できる。In order to solve the above-mentioned problems, the double glazing of the present invention is a double glazing in which an air layer or nitrogen gas is interposed between two glass plates, and the outer glass constituting this double glazing. A hydrophilic antifouling treatment film containing a photocatalyst layer is formed on the surface of the plate on the outdoor side, and a low-emissivity multilayer film is formed on the surface of the inner glass plate constituting the double-layer glass on the outdoor side, or A low-emissivity multilayer film was formed on the surface of the outer glass plate that was the interior side. With such a structure, the antifouling function based on hydrophilicity, the high heat insulating function, and the appropriate solar radiation shielding function can be satisfied at the same time.
【０００９】また、前記複層ガラスを構成する内側ガラ
ス板の室内側となる面に光触媒層を含む揮発性有機化合
物分解膜を形成した場合には、室内の揮発性有機化合物
低減機能を更に付加することができる。Further, when a volatile organic compound decomposing film containing a photocatalytic layer is formed on the surface of the inner glass plate constituting the above-mentioned double glazing which becomes the indoor side, a function of reducing the volatile organic compound in the room is further added. can do.
【００１０】前記光触媒層を含む揮発性有機化合物分解
膜の具体例としては、酸化珪素（ＳiＯ２）下地膜の上
に酸化チタン（ＴiＯ２）表層を形成する２層構成が好
ましい。更に、酸化チタンの上に酸化ニオブ（Ｎb２Ｏ
５）を介して酸化チタン（ＴiＯ ２）表層を形成した構
成としてもよい。Decomposition of volatile organic compounds containing the photocatalyst layer
As a specific example of the film, silicon oxide (SiO 2Two) On the base film
Titanium oxide (TiOTwo) A two-layer structure that forms the surface layer is preferable.
Good Furthermore, niobium oxide (NbTwoO
5) Through titanium oxide (TiO Two) Structure with the surface layer formed
It may be done.
【００１１】一方、光触媒層を含む親水性防汚処理膜と
しては、揮発性有機化合物分解膜の上に、更に酸化珪素
（ＳiＯ２）層からなるオーバーコート（保護層）を形
成してもよい。オーバーコート（保護層）の厚さは１〜
５０ｎｍが好ましい。On the other hand, as the hydrophilic antifouling film containing a photocatalyst layer, an overcoat (protective layer) composed of a silicon oxide (SiO 2 ) layer may be further formed on the volatile organic compound decomposition film. . Overcoat (protective layer) thickness is 1 ~
50 nm is preferred.
【００１２】[0012]
【発明の実施の態様】以下に本発明を実施の形態を添付
図面も参照しつつ具体的に説明する。図１は本発明に係
る複層ガラスを示す図であり、複層ガラスを構成する外
側及び内側のガラス板については通常のフロートガラ
ス、強化ガラス或いは合せガラスを選定することができ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIG. 1 is a view showing a double glazing according to the present invention. As the outer and inner glass plates constituting the double glazing, a normal float glass, a tempered glass or a laminated glass can be selected.
【００１３】図１において、外側ガラス板の室外側とな
る面には親水性防汚処理膜１が形成され、内側ガラス板
の室内側となる面には揮発性有機化合物分解膜２が形成
されている。前記内側ガラス板の室外側となる面には、
スパッタリングなどにより、Ａg等の金属とＺnＯ等の誘
電体とを交互に３層または５層積層した低放射率膜を形
成して断熱機能を付与している。また、外側ガラス板の
室内側に、遮熱型の低放射率膜をコーティングすれば遮
熱機能を付与させることができる。In FIG. 1, a hydrophilic antifouling treatment film 1 is formed on the surface of the outer glass plate on the outdoor side, and a volatile organic compound decomposition film 2 is formed on the surface of the inner glass plate on the indoor side. ing. On the surface that becomes the outdoor side of the inner glass plate,
A low emissivity film in which a metal such as Ag and a dielectric such as ZnO are alternately laminated in three or five layers is formed by sputtering or the like to provide a heat insulating function. Further, a heat shield function can be imparted by coating the inside of the outer glass plate with a heat shield type low emissivity film.
【００１４】親水性防汚処理膜１は図２に示すように酸
化珪素（ＳiＯ２）下地膜の上に酸化チタン（ＴiＯ２）
層を形成し、更にこの上に保護層として１〜５０ｎｍの
酸化珪素（ＳiＯ２）膜を形成して構成されるか、或い
は図４に示すように酸化珪素（ＳiＯ２）下地膜の上に
酸化ニオブ（Ｎb２Ｏ５）を介して酸化チタン（Ｔi
Ｏ２）層を形成し、更にこの上に保護層として１〜５０
ｎｍの酸化珪素（ＳiＯ ２）膜を形成して構成される。As shown in FIG. 2, the hydrophilic antifouling treatment film 1 is treated with an acid.
Silicon oxide (SiOTwo) Titanium oxide (TiO 2) on the underlying filmTwo)
A layer is formed and a protective layer having a thickness of 1 to 50 nm is further formed thereon.
Silicon oxide (SiOTwo) Constructed by forming a membrane, or
As shown in FIG. 4, silicon oxide (SiO 2Two) On the base film
Niobium oxide (NbTwoO5) Through titanium oxide (Ti
OTwo) Layer is formed, and as a protective layer thereon, 1 to 50
nm silicon oxide (SiO Two) Is formed by forming a film.
【００１５】一方、揮発性有機化合物分解膜２は図４に
示すように酸化珪素（ＳiＯ２）下地膜の上に酸化チタ
ン（ＴiＯ２）表層を形成して構成されるか、或いは図
５に示すように酸化珪素（ＳiＯ２）下地膜の上に酸化
ニオブ（Ｎb２Ｏ５）を介して酸化チタン（ＴiＯ２）表
層を形成して構成される。On the other hand, the volatile organic compound decomposition film 2 is formed by forming a titanium oxide (TiO 2 ) surface layer on a silicon oxide (SiO 2 ) base film as shown in FIG. 4, or as shown in FIG. As shown, a titanium oxide (TiO 2 ) surface layer is formed on a silicon oxide (SiO 2 ) base film via niobium oxide (Nb 2 O 5 ).
【００１６】この下地膜を形成するには、例えば、ガラ
ス板を真空チャンバーに入れてＳiをＯ２雰囲気中で反
応させるスパッタリング法で成膜する。酸化珪素（Ｓi
Ｏ２）下地膜の厚さは１〜５０ｎｍが好ましく、５〜２
０ｎｍが更に好ましい。この下地膜が１ｎｍ未満ではガ
ラス表面からのアルカリ溶出を防止することができず、
一方５０ｎｍを超えると必要以上の膜厚となる。To form this base film, for example, a glass plate is placed in a vacuum chamber and Si is reacted in an O 2 atmosphere to form a film by a sputtering method. Silicon oxide (Si
The thickness of the O 2 ) base film is preferably 1 to 50 nm, and 5 to 2
0 nm is more preferable. If this base film is less than 1 nm, alkali elution from the glass surface cannot be prevented,
On the other hand, if it exceeds 50 nm, the film thickness becomes unnecessarily large.
【００１７】上記下地膜の上には、光触媒機能を有する
酸化チタン（ＴiＯ２）層を形成する。この酸化チタン
（ＴiＯ２）層を形成するには、例えば、ガラス板を真
空チャンバーに入れてＴiをＯ２雰囲気中で反応させる
スパッタリング法で２５０〜３５０℃で加熱成膜する
か、または常温成膜後に２５０℃前後で約１時間加熱処
理する。酸化チタン（ＴiＯ２）層の厚さは３００〜８
００ｎｍが好ましく、４００〜６００ｎｍが更に好まし
い。この酸化チタン層が３００ｎｍ未満では光触媒活性
が不足であり、一方８００ｎｍを超えても光触媒活性は
必要以上に高くならない。A titanium oxide (TiO 2 ) layer having a photocatalytic function is formed on the base film. To form this titanium oxide (TiO 2 ) layer, for example, a glass plate is placed in a vacuum chamber and Ti is reacted in an O 2 atmosphere to form a film by heating at 250 to 350 ° C. or at room temperature. After the film, heat treatment is performed at about 250 ° C. for about 1 hour. The thickness of the titanium oxide (TiO 2 ) layer is 300 to 8
00 nm is preferable, and 400 to 600 nm is more preferable. If the titanium oxide layer is less than 300 nm, the photocatalytic activity is insufficient, while if it exceeds 800 nm, the photocatalytic activity is not increased more than necessary.
【００１８】上記酸化珪素（ＳiＯ２）下地膜と酸化チ
タン（ＴiＯ２）層との間に酸化ニオブ（Ｎb２Ｏ５）中
間層を設けることも好ましい。この中間層を設けるに
は、例えばガラス板を真空チャンバーに入れてＮbをＯ
２雰囲気中で反応させるスパッタリング法で成膜する。
酸化ニオブ（Ｎb２Ｏ５）中間層を挟むことにより、酸
化チタン（ＴiＯ２）層を薄くしても高い光触媒活性が
得られる利点がある。酸化ニオブ（Ｎb２Ｏ５）中間層
の厚さは１〜５０ｎｍが好ましく、５〜２０ｎｍが更に
好ましい。この酸化ニオブ（Ｎb２Ｏ５）中間層の厚さ
が１ｎｍ未満では光触媒活性が不足であり、一方５０ｎ
ｍを超えても光触媒活性は必要以上に高くならない。It is also preferable to provide a niobium oxide (Nb 2 O 5 ) intermediate layer between the silicon oxide (SiO 2 ) base film and the titanium oxide (TiO 2 ) layer. To provide this intermediate layer, for example, a glass plate is placed in a vacuum chamber and Nb
2 The film is formed by a sputtering method of reacting in an atmosphere.
By sandwiching the niobium oxide (Nb 2 O 5 ) intermediate layer, there is an advantage that high photocatalytic activity can be obtained even if the titanium oxide (TiO 2 ) layer is thin. The thickness of the niobium oxide (Nb 2 O 5 ) intermediate layer is preferably 1 to 50 nm, more preferably 5 to 20 nm. If the thickness of this niobium oxide (Nb 2 O 5 ) intermediate layer is less than 1 nm, the photocatalytic activity is insufficient, while 50 n
Even if it exceeds m, the photocatalytic activity does not become higher than necessary.
【００１９】尚、上記酸化ニオブ中間膜を設けた場合、
この中間膜に重ねる酸化チタン（ＴiＯ２）層の厚さは
１００〜４００ｎｍ、さらには２００〜３００ｎｍが好
ましい。酸化チタン（ＴiＯ２）の厚さが１００ｎｍ未
満では光触媒活性が不足であり、一方４００ｎｍを超え
ても光触媒活性は必要以上に高くならない。When the above-mentioned niobium oxide intermediate film is provided,
The thickness of the titanium oxide (TiO 2 ) layer overlaid on this intermediate film is preferably 100 to 400 nm, more preferably 200 to 300 nm. If the thickness of titanium oxide (TiO 2 ) is less than 100 nm, the photocatalytic activity is insufficient, while if it exceeds 400 nm, the photocatalytic activity does not become higher than necessary.
【００２０】最後に、酸化チタン（ＴiＯ２）層が形成
されたガラス面の一方に、再度酸化珪素（ＳiＯ２）膜
の表面層を形成する。この表面層は、例えば、ガラス板
を真空チャンバーに入れてＳiをＯ２雰囲気中で反応さ
せるスパッタリング法で成膜する。酸化珪素（Ｓi
Ｏ２）表面層の厚さは１〜５０ｎｍが好ましく、５〜２
０ｎｍが更に好ましい。この表面層が１ｎｍ未満では酸
化チタン表面を完全に覆うことができず、一方５０ｎｍ
を超えると必要以上の膜厚となる。上記方法によって、
片面は酸化チタン（ＴiＯ２）層、もう一方の面は酸化
珪素（ＳiＯ２）薄膜が形成されたガラス板が得られ
る。Finally, a surface layer of a silicon oxide (SiO 2 ) film is formed again on one side of the glass surface on which the titanium oxide (TiO 2 ) layer is formed. This surface layer is formed by, for example, a sputtering method in which a glass plate is placed in a vacuum chamber and Si is reacted in an O 2 atmosphere. Silicon oxide (Si
The thickness of the O 2 ) surface layer is preferably 1 to 50 nm, and is 5 to 2 nm.
0 nm is more preferable. If this surface layer is less than 1 nm, the titanium oxide surface cannot be completely covered, while 50 nm
If it exceeds, the film thickness becomes unnecessarily large. By the above method,
A glass plate having a titanium oxide (TiO 2 ) layer on one side and a silicon oxide (SiO 2 ) thin film on the other side can be obtained.
【００２１】酸化チタン（ＴiＯ２）層が露出する面
は、高い光触媒活性を有するため、建築材料から発生す
るホルマリン等の揮発性有機化合物を分解でき、室内側
に使用すればシック・ハウス症侯群を防止することがで
きる。また、薄い酸化珪素（ＳiＯ２）膜を有する側
は、直下の酸化チタン（ＴiＯ２）膜との組み合わせに
より、ガラス表面に付着した汚れを落とす、いわゆるセ
ルフクリーニング機能を有する。従って、窓ガラスの特
に室外側に好適に用いることができる。Since the surface where the titanium oxide (TiO 2 ) layer is exposed has a high photocatalytic activity, volatile organic compounds such as formalin generated from building materials can be decomposed, and if it is used indoors, it causes sick house syndrome. Swarms can be prevented. In addition, the side having the thin silicon oxide (SiO 2 ) film has a so-called self-cleaning function of removing dirt adhering to the glass surface by combining with the titanium oxide (TiO 2 ) film directly below. Therefore, it can be suitably used especially on the outside of the window glass.
【００２２】以上の性能をガラスの種類別に下記（表
１）に示す。（表１）において、◎は機能が特に優れて
いることを、また○はこの機能を有することを表す。ま
た（表１）の試料１〜３の構成は以下の通りである。但
し、表面の番号については図１，２を参照。
試料１…複層ガラスのF1面に親水性防汚処理膜を、F4面
に揮発性有機化合物分解膜を形成した。
試料２…複層ガラスのF1面に親水性防汚処理膜を、F3面
に低放射膜を、F4面に揮発性有機化合物分解膜を形成し
た。
試料３…複層ガラスのF1面に親水性防汚処理膜を、F2面
に遮熱型低放射膜を、F4面に揮発性有機化合物分解膜を
形成した。The above performances are shown in the following (Table 1) for each type of glass. In Table 1, ⊚ indicates that the function is particularly excellent, and ∘ indicates that it has this function. The configurations of Samples 1 to 3 in (Table 1) are as follows. However, see FIGS. 1 and 2 for the surface numbers. Sample 1 ... A hydrophilic antifouling film was formed on the F1 surface of the double glazing, and a volatile organic compound decomposition film was formed on the F4 surface. Sample 2: A hydrophilic antifouling film was formed on the F1 surface of the double glazing, a low radiation film was formed on the F3 surface, and a volatile organic compound decomposition film was formed on the F4 surface. Sample 3: A hydrophilic antifouling film was formed on the F1 surface of the double glazing, a heat-shielding low-emission film was formed on the F2 surface, and a volatile organic compound decomposition film was formed on the F4 surface.
【００２３】[0023]
【表１】 [Table 1]
【００２４】また試料１〜３について、熱貫流率、可視
光透過率、可視光反射率、日射透過率、日射反射率、夏
場の日射熱取得率、夏場の遮蔽係数および紫外線透過率
をシミュレーションした結果を（表２）に示す。With respect to Samples 1 to 3, the heat transmission coefficient, the visible light transmittance, the visible light reflectance, the solar radiation transmittance, the solar radiation reflectance, the solar heat gain coefficient in summer, the shielding coefficient in summer and the ultraviolet ray transmittance were simulated. The results are shown in (Table 2).
【００２５】[0025]
【表２】 [Table 2]
【００２６】（表１）からは、本発明に係る複層ガラス
は防汚性、低ＶＯＣに優れることが分り、（表２）から
は、日射による熱の遮断や紫外線を防御する機能が優秀
であることが分る。It can be seen from Table 1 that the double glazing according to the present invention is excellent in antifouling property and low VOC, and from Table 2 it is excellent in the function of blocking heat from sunlight and protecting it from ultraviolet rays. It turns out that
【００２７】尚、実施例にあっては、ガラス板にスパッ
タリング法で成膜する方法を示したが、酸化珪素（Ｓi
Ｏ２）や酸化チタン（ＴiＯ２）水溶液中に浸漬した
り、スプレーで吹き付けたりする湿式法を用いてもよ
い。In the examples, the method of forming a film on the glass plate by the sputtering method was described.
A wet method of immersing in an O 2 ) or titanium oxide (TiO 2 ) aqueous solution or spraying may be used.
【００２８】[0028]
【発明の効果】以上に説明したように本発明の複層ガラ
スによれば、親水性に基づいた防汚機能、高い断熱機能
及び適度な日射遮蔽機能を同時に発揮することができ、
また室内側となる面に揮発性有機化合物を分解する膜を
形成することで、シックハウス症候群対策も講じること
ができる。As described above, according to the double glazing of the present invention, it is possible to simultaneously exhibit the antifouling function based on hydrophilicity, the high heat insulating function and the appropriate solar radiation shielding function,
In addition, by forming a film that decomposes volatile organic compounds on the surface that becomes the indoor side, it is possible to take measures against sick house syndrome.
【図１】本発明に係る複層ガラスを示す図。FIG. 1 is a diagram showing a double glazing according to the present invention.
【図２】親水性防汚処理膜の拡大断面図。FIG. 2 is an enlarged cross-sectional view of a hydrophilic antifouling film.
【図３】別実施例を示す図２と同様の断面図。FIG. 3 is a sectional view similar to FIG. 2 showing another embodiment.
【図４】揮発性有機化合物分解膜の拡大断面図。FIG. 4 is an enlarged cross-sectional view of a volatile organic compound decomposition film.
【図５】別実施例を示す図２と同様の断面図。5 is a sectional view similar to FIG. 2 showing another embodiment.
１…親水性防汚処理膜、２…揮発性有機化合物分解膜、
F1，F2，F3，F4…板ガラス表面。1 ... Hydrophilic antifouling film, 2 ... Volatile organic compound decomposition film,
F1, F2, F3, F4 ... Plate glass surface.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北添 敏昭 大阪府大阪市中央区北浜四丁目７番28号 日本板硝子株式会社内 (72)発明者 加藤 英美 大阪府大阪市中央区北浜四丁目７番28号 日本板硝子株式会社内 Ｆターム(参考） 4G059 AA01 AC06 AC22 EA04 EA05 EB04 GA01 GA12 4G061 AA09 AA21 AA23 AA25 BA01 CA02 CD02 CD21 CD23 DA09 DA14 DA26 4G069 AA02 BA02A BA02B BA04A BA04B BA14A BA14B BA48A BB04A BB04B BC55A BC55B CA01 CA11 EA11 EB15Y ED02 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Toshiaki Kitazoe 7-28 Kitahama 4-28, Chuo-ku, Osaka City, Osaka Prefecture Within Nippon Sheet Glass Co., Ltd. (72) Inventor Hidemi Kato 7-28 Kitahama 4-28, Chuo-ku, Osaka City, Osaka Prefecture Within Nippon Sheet Glass Co., Ltd. F-term (reference) 4G059 AA01 AC06 AC22 EA04 EA05 EB04 GA01 GA12 4G061 AA09 AA21 AA23 AA25 BA01 CA02 CD02 CD21 CD23 DA09 DA14 DA26 4G069 AA02 BA02A BA02B BA04A BA04B BA14A BA14B BA48A BB04A BB04B BC55A BC55B CA01 CA11 EA11 EB15Y ED02
Claims (7)
介在せしめた複層ガラスであって、この複層ガラスを構
成する外側ガラス板の室外側となる面に光触媒層を含む
親水性防汚処理膜を形成し、また前記複層ガラスを構成
する内側ガラス板の室外側となる面に低放射率多層膜を
形成していることを特徴とする複層ガラス。1. A multi-layer glass in which an air layer or nitrogen gas is interposed between two glass plates, and a hydrophilic layer containing a photocatalyst layer on the surface of the outer glass plate constituting the multi-layer glass which is the outdoor side. Anti-fouling treatment film is formed, and a low-emissivity multi-layer film is formed on the surface of the inner glass plate constituting the above-mentioned double-layer glass which is the outdoor side.
介在せしめた複層ガラスであって、この複層ガラスを構
成する外側ガラス板の室外側となる面に光触媒層を含む
親水性防汚処理膜を形成し、また前記複層ガラスを構成
する外側ガラス板の室内側となる面に低放射率多層膜を
形成していることを特徴とする複層ガラス。2. A multi-layer glass in which an air layer or nitrogen gas is interposed between two glass plates, and a hydrophilic layer including a photocatalyst layer on the surface of the outer glass plate constituting the multi-layer glass which is the outdoor side. Anti-fouling treatment film is formed, and a low-emissivity multi-layer film is formed on the surface of the outer glass plate constituting the above-mentioned double-glazed glass that is the inner side of the glass.
スにおいて、前記複層ガラスを構成する内側ガラス板の
室内側となる面に光触媒層を含む揮発性有機化合物分解
膜を形成していることを特徴とする複層ガラス。3. The double glazing according to claim 1 or 2, wherein a volatile organic compound decomposing film including a photocatalyst layer is formed on a surface of the inner glass plate constituting the double glazing that is an indoor side. Double glazing characterized by
前記光触媒層を含む揮発性有機化合物分解膜は、酸化珪
素（ＳiＯ２）下地膜の上に酸化チタン（ＴiＯ２）表層
を形成して構成されることを特徴とする複層ガラス。4. The double glazing according to claim 3,
The volatile organic compound decomposing film including the photocatalyst layer is formed by forming a titanium oxide (TiO 2 ) surface layer on a silicon oxide (SiO 2 ) base film.
前記光触媒層を含む揮発性有機化合物分解膜は、酸化珪
素（ＳiＯ２）下地膜の上に酸化ニオブ（Ｎb ２Ｏ５）を
介して酸化チタン（ＴiＯ２）表層を形成して構成され
ることを特徴とする複層ガラス。5. The double glazing according to claim 3,
The volatile organic compound decomposing film including the photocatalyst layer is made of silicon oxide.
Elementary (SiOTwo) Niobium oxide (Nb TwoO5)
Through titanium oxide (TiOTwo) Is formed by forming the surface layer
Double glazing characterized by the fact that
複層ガラスにおいて、前記光触媒層を含む親水性防汚処
理膜は、酸化珪素（ＳiＯ２）下地膜の上に酸化チタン
（ＴiＯ２）層を形成し、この酸化チタン（ＴiＯ２）層
の上に酸化珪素（ＳiＯ２）層を形成して構成されるこ
とを特徴とする複層ガラス。6. The double-layer glass according to any one of claims 1 to 3, wherein the hydrophilic antifouling treatment film including the photocatalyst layer is titanium oxide (SiO 2 ) on a base film. forming a TiO 2) layer, double glazing, characterized in that it is constituted by a silicon oxide (SiO 2) layer on top of the titanium oxide (TiO 2) layer.
複層ガラスにおいて、前記光触媒層を含む親水性防汚処
理膜は、酸化珪素（ＳiＯ２）下地膜の上に酸化ニオブ
（Ｎb２Ｏ５）を介して酸化チタン（ＴiＯ２）層を形成
し、この酸化チタン（ＴiＯ２）層の上に酸化珪素（Ｓi
Ｏ２）層を形成して構成されることを特徴とする複層ガ
ラス。7. The double-layer glass according to any one of claims 1 to 3, wherein the hydrophilic antifouling treatment film including the photocatalyst layer comprises niobium oxide (SiO 2 ) on a base film. A titanium oxide (TiO 2 ) layer is formed through Nb 2 O 5 ) and silicon oxide (Si 2 ) is formed on the titanium oxide (TiO 2 ) layer.
O 2) double glazing, characterized in that it is constituted by forming a layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003034615A JP4039958B2 (en) | 2003-02-13 | 2003-02-13 | Double glazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003034615A JP4039958B2 (en) | 2003-02-13 | 2003-02-13 | Double glazing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000102969A Division JP4039786B2 (en) | 2000-04-05 | 2000-04-05 | Multifunctional glass |
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| Publication Number | Publication Date |
|---|---|
| JP2003226560A true JP2003226560A (en) | 2003-08-12 |
| JP4039958B2 JP4039958B2 (en) | 2008-01-30 |
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ID=27751612
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003034615A Expired - Fee Related JP4039958B2 (en) | 2003-02-13 | 2003-02-13 | Double glazing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007301988A (en) * | 2006-04-11 | 2007-11-22 | Nippon Sheet Glass Co Ltd | Photocatalyst coating having improved low maintenance characteristic |
| JP2011242094A (en) * | 2010-05-21 | 2011-12-01 | Nakajima Glass Co Inc | Glass unit for refrigerator or freezer |
| JP2014076937A (en) * | 2012-10-06 | 2014-05-01 | Figla Co Ltd | Multilayer glass |
| CN104084229A (en) * | 2014-06-25 | 2014-10-08 | 华南理工大学 | Carbon nitride-modified titanium dioxide super-hydrophilic porous film as well as preparation method and application thereof |
| WO2019176861A1 (en) * | 2018-03-11 | 2019-09-19 | 日本板硝子株式会社 | Solar panel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731891B (en) * | 2017-02-27 | 2019-07-12 | 中国科学院上海高等研究院 | A kind of carbonitride two-dimensional material composite membrane and its preparation method and application |
-
2003
- 2003-02-13 JP JP2003034615A patent/JP4039958B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007301988A (en) * | 2006-04-11 | 2007-11-22 | Nippon Sheet Glass Co Ltd | Photocatalyst coating having improved low maintenance characteristic |
| JP2011242094A (en) * | 2010-05-21 | 2011-12-01 | Nakajima Glass Co Inc | Glass unit for refrigerator or freezer |
| JP2014076937A (en) * | 2012-10-06 | 2014-05-01 | Figla Co Ltd | Multilayer glass |
| CN104084229A (en) * | 2014-06-25 | 2014-10-08 | 华南理工大学 | Carbon nitride-modified titanium dioxide super-hydrophilic porous film as well as preparation method and application thereof |
| WO2019176861A1 (en) * | 2018-03-11 | 2019-09-19 | 日本板硝子株式会社 | Solar panel |
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| Publication number | Publication date |
|---|---|
| JP4039958B2 (en) | 2008-01-30 |
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