JPH09302284A - Coating fluid for sunlight-screening film and sunlight-screening film made by using the same - Google Patents
Coating fluid for sunlight-screening film and sunlight-screening film made by using the sameInfo
- Publication number
- JPH09302284A JPH09302284A JP8119280A JP11928096A JPH09302284A JP H09302284 A JPH09302284 A JP H09302284A JP 8119280 A JP8119280 A JP 8119280A JP 11928096 A JP11928096 A JP 11928096A JP H09302284 A JPH09302284 A JP H09302284A
- Authority
- JP
- Japan
- Prior art keywords
- film
- fine particles
- sunlight
- coating
- solar radiation
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス、プラスチ
ックスなどの日射遮蔽機能を必要とする基材表面に塗布
して日射遮蔽膜とするための塗布液及びこのようにして
得られた日射遮蔽膜に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating solution for coating a surface of a substrate, such as glass or plastics, which requires a solar radiation shielding function to form a solar radiation shielding film, and a solar radiation shielding film thus obtained. Regarding the membrane.
【０００２】[0002]
【従来の技術】太陽光線は、近赤外光、可視光、紫外光
の３つに大きく分けることができる。この内近赤外光
（熱線）は熱エネルギーとして人体に感じる波長領域の
光であり、室内の温度上昇の原因ともなる。また、紫外
線は皮膚ガン等の原因となるなど人体へ悪影響を及ぼす
ことが指摘されている。また、可視光は自動車、ビル、
住宅等の窓ガラスにおいてその透過率を制御すること
で、プライバシー保護機能を持たせることができる。2. Description of the Related Art Sunlight can be broadly divided into three types: near-infrared light, visible light, and ultraviolet light. This near-infrared light (heat rays) is light in the wavelength range that the human body perceives as heat energy, and also causes a rise in temperature in the room. It has been pointed out that ultraviolet rays have a harmful effect on the human body, such as causing skin cancer. In addition, visible light is used for cars, buildings,
A privacy protection function can be provided by controlling the transmittance of a window glass of a house or the like.
【０００３】従来、金属（Ａｕ、Ａｇ、Ｃｕ）や、窒化
チタン、アルミニウムなどの様な伝導電子を多量にもつ
材料を応用した日射遮蔽膜が用いられている。これらの
材料では、日射以外に可視光領域の光も同時に反射もし
くは吸収する性質があり、可視光透過率が低い欠点があ
る。そのため建材、乗り物、電話ボックス等の透明基材
にこれらの材料を利用する場合は、可視光領域の透過率
を高くするため、膜厚を非常に薄くするなどの操作が必
要となり、十分な日射遮蔽特性をもたせることが困難で
あった。また、純金属材料では、基材との相互拡散や膜
の安定性の点から問題がある。Conventionally, a solar radiation shielding film to which a material having a large amount of conduction electrons such as metal (Au, Ag, Cu) and titanium nitride, aluminum is applied has been used. These materials have the property of simultaneously reflecting or absorbing light in the visible light region in addition to solar radiation, and have a drawback of low visible light transmittance. Therefore, when using these materials for transparent base materials such as building materials, vehicles, and telephone boxes, it is necessary to perform operations such as making the film thickness extremely thin in order to increase the transmittance in the visible light region. It was difficult to provide the shielding property. Further, the pure metal material has a problem in terms of mutual diffusion with the base material and stability of the film.
【０００４】可視光透過性があり、かつ日射遮蔽機能を
もつ材料としては、インジウム錫酸化物（ＩＴＯ）やア
ルミニウム添加酸化亜鉛（ＡＺＯ）などが知られている
が、これらの材料に含まれる自由電子の量は金属に比べ
て少なく、十分な日射遮蔽機能を得ることは困難であっ
た。これら材料を用いた膜の作製方法としてはスパッタ
法や、蒸着法が利用されるが、これらの方法では大がか
りな真空装置を必要とするため生産性に劣りまた大面積
成膜が困難であるという問題があった。[0004] Indium tin oxide (ITO), aluminum-added zinc oxide (AZO) and the like are known as materials having a visible light transmitting property and a solar shading function. The amount of electrons is smaller than that of metal, and it was difficult to obtain a sufficient solar radiation shielding function. Sputtering method and vapor deposition method are used as a method for forming a film using these materials, but these methods require a large-scale vacuum device, resulting in poor productivity and difficulty in forming a large area film. There was a problem.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記従来の
問題点を解決し、可視光透過率の制御が可能で、しかも
効率の良い日射遮蔽機能をもち、併せて紫外線遮蔽機能
も有する日射遮蔽膜およびこれに用いる塗布液を提供す
るものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, is capable of controlling visible light transmittance, has an efficient solar radiation shielding function, and also has an ultraviolet shielding function. The present invention provides a shielding film and a coating liquid used therefor.
【０００６】[0006]
【課題を解決するための手段】発明者らは従来の問題点
を解決するため、材料そのものの特性として、紫外線領
域に吸収をもち、可視光領域に透過性があり、かつ自由
電子を多量に保有しプラズモン反射の強い酸化物である
含ルテニウム酸化物微粒子、含イリジウム酸化物微粒
子、及び含ロジウム酸化物微粒子に注目し、これを含む
日射遮蔽膜およびこれを作製するための塗布液を発明す
るに至った。Means for Solving the Problems In order to solve the conventional problems, the inventors have found that the material itself has absorption in the ultraviolet region, transparency in the visible region, and a large amount of free electrons. Attention is paid to ruthenium-containing oxide fine particles, iridium-containing oxide fine particles, and rhodium-containing oxide fine particles, which are oxides having strong plasmon reflection, and invent a solar shading film containing the fine particles and a coating solution for producing the same. Reached.
【０００７】即ち、上記問題を解決するための本発明の
日射遮蔽膜用塗布液は、含ルテニウム酸化物微粒子、含
イリジウム酸化物微粒子、および、含ロジウム酸化物微
粒子のうちの１種もしくは２種以上からなる平均粒径１
００ｎｍ以下の微粒子が含有された分散液からなるか、
もしくはこれに樹脂バインダーとが混合されてなること
を特徴とする。That is, to solve the above problem, the coating solution for a solar shading film of the present invention comprises one or two of ruthenium-containing fine particles, iridium-containing fine particles, and rhodium-containing fine particles. Average particle size 1 consisting of the above
Consists of a dispersion liquid containing fine particles of 00 nm or less,
Alternatively, it is characterized by being mixed with a resin binder.
【０００８】また、本発明の日射遮蔽膜は、上記いずれ
かの塗布液を、基材に塗布後加熱して得ることを特徴と
する。The solar radiation shielding film of the present invention is characterized in that it is obtained by applying any one of the above-mentioned coating solutions to a base material and then heating.
【０００９】また、本発明の他の日射遮蔽膜は、上記日
射遮蔽膜の上に更に樹脂膜を被膜して多層としたことを
特徴とする。Further, another solar radiation shielding film of the present invention is characterized in that a resin film is further coated on the solar radiation shielding film to form a multilayer.
【００１０】[0010]
【発明の実施の形態】本発明における含ルテニウム酸化
物微粒子、含イリジウム酸化物微粒子、及び含ロジウム
酸化物微粒子は、二酸化ルテニウム(ＲｕＯ2)、二酸化
イリジウム（ＩｒＯ2）、二酸化ロジウム（ＲｈＯ2）の
みならず、ルテニウム酸ビスマス（Ｂｉ2Ｒｕ2Ｏ7）、
ルテニウム酸鉛（Ｐｂ2Ｒｕ2Ｏ6.5）、イリジウム酸ビ
スマス（Ｂｉ2Ｉｒ2Ｏ7）、イリジウム酸鉛（Ｐｂ2Ｉｒ
2Ｏ6.5）なども含むものとし、またこれらに限定される
ものではない。また、上記含ルテニウム酸化物微粒子、
含イリジウム酸化物微粒子、および、含ロジウム酸化物
微粒子のうちの１種でもよく、また２種以上が混合され
ていてもよい。BEST MODE FOR CARRYING OUT THE INVENTION The fine particles of ruthenium-containing oxide, fine particles of iridium-containing oxide and fine particles of rhodium-containing oxide in the present invention are ruthenium dioxide (RuO 2 ), iridium dioxide (IrO 2 ), rhodium dioxide (RhO 2 ). Not only bismuth ruthenate (Bi 2 Ru 2 O 7 ),
Lead ruthenate (Pb 2 Ru 2 O 6.5 ), bismuth iridate (Bi 2 Ir 2 O 7 ), lead iridate (Pb 2 Ir)
2 O 6.5 ) and the like, and are not limited to these. Further, the above ruthenium oxide fine particles,
One of the iridium-containing oxide fine particles and the rhodium-containing oxide fine particles may be used, or two or more thereof may be mixed.
【００１１】いずれの材料の場合もその平均粒径は１０
０ｎｍ以下の微粒子であることが必要である。平均粒径
が１００ｎｍを超えると分散液中の微粒子同士の凝集傾
向が強くなり、塗布液中の微粒子の沈降の原因となるか
らである。また１００ｎｍを超える微粒子もしくはそれ
らの凝集した粗大粒子の存在は、それによる光散乱によ
り可視光透過率低下の原因となるので好ましくない。The average particle size of each material is 10
Fine particles having a diameter of 0 nm or less are required. If the average particle size exceeds 100 nm, the tendency of the fine particles in the dispersion liquid to agglomerate becomes strong, which causes the fine particles in the coating liquid to settle. Also, the presence of fine particles having a size of more than 100 nm or agglomerated coarse particles thereof is not preferable because it causes a decrease in visible light transmittance due to light scattering.
【００１２】上記の微粒子は全て金属的電気伝導性を示
す黒色粉末である。粒径１００ｎｍ以下の微粒子として
薄膜中に分散した状態では可視光透過性が生ずるが、近
赤外光遮蔽能は充分強く保持でき、また紫外線領域の光
を吸収する。The above fine particles are all black powders exhibiting metallic electrical conductivity. When dispersed in a thin film as fine particles having a particle diameter of 100 nm or less, visible light transmittance is generated, but near-infrared light shielding ability can be sufficiently maintained, and light in the ultraviolet region is absorbed.
【００１３】分散液中に上記微粒子を分散させるための
分散媒は特に限定されるものではなく、塗布条件や、塗
布環境等に合わせて選択可能であり、例えば水や、アル
コール等の有機溶媒など各種使用可能である。また、必
要に応じて酸やアルカリを添加してｐＨを調整しても良
い。更に、上記微粒子の分散安定性を向上させるため
に、各種カップリング剤、界面活性剤等の利用も可能で
あり、そのときのそれぞれの添加量は、微粒子に対して
３０ｗｔ％以下、好ましくは５ｗｔ％以下が良い。The dispersion medium for dispersing the above fine particles in the dispersion is not particularly limited and can be selected according to the coating conditions, the coating environment, etc. For example, water, organic solvents such as alcohols, etc. Various types can be used. Further, the pH may be adjusted by adding an acid or an alkali, if necessary. Further, in order to improve the dispersion stability of the fine particles, various coupling agents, surfactants, and the like can be used. At that time, the amount of each added is 30 wt% or less, preferably 5 wt% based on the fine particles. % Or less is good.
【００１４】微粒子の分散方法は、微粒子が均一に溶液
中に分散する方法であれば良く、例としては、ボールミ
ル、サンドミル、超音波分散等を用いた方法が挙げられ
る。The method for dispersing the fine particles may be any method as long as the fine particles are uniformly dispersed in the solution, and examples thereof include a method using a ball mill, a sand mill, an ultrasonic dispersion and the like.
【００１５】本発明の日射遮蔽膜用塗布液は、上記微粒
子を分散させた分散液のみ、もしくは分散液と樹脂バイ
ンダーとを混合したものである。分散液のみを基材に塗
布した場合、基材上には微粒子のみが堆積した膜構造と
なり、このままでも十分日射遮蔽機能を示す。また、こ
の分散液に樹脂バインダーを混合することにより、その
成分が微粒子の堆積した間隙を埋めるため、膜のヘイズ
が低減し、可視光領域の光透過率を向上させ、微粒子の
基材への結着性を向上させる。The coating solution for the solar radiation shielding film of the present invention is a dispersion liquid in which the above fine particles are dispersed alone, or a mixture of the dispersion liquid and a resin binder. When only the dispersion liquid is applied to the base material, a film structure in which only fine particles are deposited on the base material is obtained, and as it is, the solar radiation shielding function is sufficiently exhibited. Further, by mixing a resin binder with this dispersion liquid, the component fills the gaps where the fine particles are accumulated, so that the haze of the film is reduced, the light transmittance in the visible light region is improved, and Improves cohesion.
【００１６】このようにして得られた膜上に、更に樹脂
バインダーを第２層として被膜することで、上記微粒子
を主成分とする膜の基材への結着力や、膜の硬度および
耐候性を更に向上させることが可能となる。The film thus obtained is further coated with a resin binder as a second layer, so that the film containing the above-mentioned fine particles as a main component is bound to the substrate, the film hardness and the weather resistance. Can be further improved.
【００１７】塗布液と混合する樹脂バインダ−、及び、
多層膜用の樹脂バインダーとしては、アクリル樹脂等の
熱可塑性樹脂、エポキシ樹脂等の熱硬化性樹脂、紫外線
硬化性樹脂、電子線硬化性樹脂等の樹脂を含むものを用
いることが可能である。A resin binder mixed with the coating liquid, and
As the resin binder for the multilayer film, it is possible to use one containing a resin such as a thermoplastic resin such as an acrylic resin, a thermosetting resin such as an epoxy resin, an ultraviolet curable resin, or an electron beam curable resin.
【００１８】本発明の塗布液の塗布方法は特に限定され
るものではないが、例えばバーコート法、ブレードコー
ト法、スピンコート法、スプレーコート法、ディップコ
ート法、スクリーン印刷法等が利用でき、処理液を平坦
にかつ薄く均一に塗布できる方法であればいかなる方法
でも良い。The coating method of the coating solution of the present invention is not particularly limited, and for example, a bar coating method, a blade coating method, a spin coating method, a spray coating method, a dip coating method, a screen printing method, etc. can be used. Any method may be used as long as it can uniformly and thinly apply the treatment liquid.
【００１９】本発明の塗布液は、焼成時の熱による塗布
液成分の分解あるいは化学反応を利用したものではない
ため、特性の安定した均一な膜厚の薄膜を形成すること
ができる。Since the coating liquid of the present invention does not utilize decomposition or chemical reaction of components of the coating liquid due to heat at the time of baking, it is possible to form a thin film having stable characteristics and a uniform film thickness.
【００２０】本発明の日射遮蔽膜の膜厚は、要求される
透明性と日射遮蔽機能から決定され、通常の場合は０．
０５μｍ〜５μｍ程度が好ましい。膜厚が０．０５μｍ
より薄くなると効果的な日射遮蔽効果が得られず、また
膜中の微粒子の分布が不均一になる傾向がある。また、
厚膜を作製することも可能であるが、膜厚が５μｍ以上
になると十分な透明性を保持するのが困難となり好まし
くない。The thickness of the solar radiation shielding film of the present invention is determined by the required transparency and the solar radiation shielding function, and in the usual case, it is 0.
It is preferably about 05 μm to 5 μm. Film thickness is 0.05 μm
If the thickness is thinner, the effective solar radiation shielding effect cannot be obtained, and the distribution of fine particles in the film tends to be non-uniform. Also,
It is possible to produce a thick film, but if the film thickness is 5 μm or more, it is difficult to maintain sufficient transparency, which is not preferable.
【００２１】本発明の日射遮蔽膜の構造は、膜中に電気
絶縁性の高い樹脂が混在して各微粒子を電気的に孤立し
た状態で存在したものとなるので、この結果として表面
抵抗が１ＭΩ/□以上の膜の作製が可能である。この様
に高い表面抵抗をもつ日射遮蔽膜は、これを施した室内
で、携帯電話等の電波通信機や、ラジオ、テレビ、ポケ
ットベル等の電波受信機の利用が可能となり、応用範囲
が広い。In the structure of the solar radiation shielding film of the present invention, since the resin having a high electric insulation is mixed in the film, each fine particle is present in an electrically isolated state, and as a result, the surface resistance is 1 MΩ. It is possible to fabricate a film of / □ or more. The solar shading film having such a high surface resistance enables the use of a radio wave communication device such as a mobile phone and a radio wave receiver such as a radio, a television and a pager in a room where the solar shading film is provided, and has a wide application range. .
【００２２】更に、上記微粒子は可視光領域に吸収をも
つ材料であり、日射遮蔽膜の膜厚を薄くすることで可視
光領域の透過率を向上させることが可能となる。この可
視光透過性をもたせた膜の色は、微粒子の種類や分散状
態によって異なる。例えば含ルテニウム酸化物において
はブロンズ色〜濃いグリーン色を示し、紫外、近赤外域
の太陽光線を遮蔽するだけでなく、膜を施した基材に非
常に美しい色調を兼ね備えさせることも可能となる。ま
た、透明基材に塗布する場合、膜厚等を変えて可視光透
過率を制御することが可能となり、プライバシー保護膜
としての応用価値も高い。Further, the fine particles are materials having absorption in the visible light region, and the transmittance in the visible light region can be improved by reducing the thickness of the solar radiation shielding film. The color of the film having the visible light transmittance varies depending on the type and dispersion state of the fine particles. For example, ruthenium-containing oxides show a bronze color to a dark green color, and can not only shield ultraviolet rays and near-infrared rays of sunlight, but also allow the coated substrate to have a very beautiful color tone. . In addition, when applied to a transparent substrate, it becomes possible to control the visible light transmittance by changing the film thickness and the like, and the application value as a privacy protective film is high.
【００２３】本発明中の塗布液は、さらに無機紫外線遮
蔽材料として、酸化チタンや酸化亜鉛、酸化セリウム
等、有機紫外線材料としてベンゾフェノン、ベンゾトリ
アゾール等を１種もしくは２種以上添加することで、紫
外線遮蔽能をさらに向上させることも可能である。The coating liquid in the present invention further contains one or more kinds of inorganic ultraviolet shielding materials such as titanium oxide, zinc oxide and cerium, and organic ultraviolet materials such as benzophenone and benzotriazole. It is also possible to further improve the shielding ability.
【００２４】また本発明の日射遮蔽膜をガラスやプラス
チックの様な透明基材に直接塗布すれば、太陽光線フィ
ルターとして利用することも可能であり、塗布液中の溶
媒や樹脂成分を選択することで、塗布後常温固化させ、
直ちに太陽光線フィルターの機能を透明基材にもたせる
ことができる。また、薄いフィルム上に本発明の日射遮
蔽膜を成膜し、このフィルムを目的の基材に直接接着剤
等で接着し、太陽光線フィルター、プライバシー保護膜
として利用することも可能である。If the solar radiation shielding film of the present invention is directly applied to a transparent substrate such as glass or plastic, it can be used as a solar ray filter, and the solvent or resin component in the coating solution can be selected. Then, after coating, let it solidify at room temperature,
The function of the sun ray filter can be immediately added to the transparent substrate. Further, the solar shading film of the present invention can be formed on a thin film, and this film can be directly adhered to a target substrate with an adhesive or the like, and used as a solar filter or a privacy protective film.
【００２５】[0025]
【実施例】以下、実施例を示して本発明を更に詳細に説
明する。The present invention will be described in more detail with reference to the following examples.
【００２６】実施例１ ・・・ 酸化ルテニウム（Ｒｕ
Ｏ2）微粒子（平均粒径３０ｎｍ）１５ｇ、Ｎ−メチル
−２−ピロリドン（ＮＭＰ）２３ｇ、ジアセトンアルコ
ール（ＤＡＡ）１４ｇ、メチルエチルケトン４７．５
ｇ、およびチタネート系カップリング剤（味の素（株）
製プレンアクトＫＲー４４）０．５ｇを混合し、直径４
ｍｍのジルコニアボールを用いて１００時間ボールミル
混合して酸化ルテニウムの分散液１００ｇを作製した
（Ａ液）。EXAMPLE 1 Ruthenium oxide (Ru)
O 2 ) Fine particles (average particle size 30 nm) 15 g, N-methyl-2-pyrrolidone (NMP) 23 g, diacetone alcohol (DAA) 14 g, methyl ethyl ketone 47.5
g, and a titanate-based coupling agent (Ajinomoto Co., Inc.)
Made Plane Act KR-44) 0.5g is mixed and the diameter is 4
mm zirconia balls were used for ball mill mixing for 100 hours to prepare 100 g of a ruthenium oxide dispersion liquid (liquid A).
【００２７】また、樹脂バインダーとして、エポキシ樹
脂５０重量％メチルエチルケトン溶液を作製した（Ｂ
液）。As a resin binder, a 50% by weight solution of epoxy resin in methyl ethyl ketone was prepared (B
liquid).
【００２８】Ａ液とＢ液をそれぞれエタノールで目的の
濃度となるように希釈し、Ａ液とＢ液を混合撹拌し、酸
化ルテニウムとエポキシ樹脂の固形分が全体の４重量
％、酸化ルテニウムとエポキシ樹脂の重量比が７５：２
５となるようにした（Ｃ液）。The liquids A and B were diluted with ethanol to a desired concentration, and the liquids A and B were mixed and stirred, and the solid content of ruthenium oxide and epoxy resin was 4% by weight of the whole, ruthenium oxide. Epoxy resin weight ratio is 75: 2
It was adjusted to 5 (solution C).
【００２９】この混合して得た塗布液（Ｃ液）を、ソー
ダライム系板硝子基板上にバーコーターを用いて塗布し
た。これを１５０℃の乾燥機に入れて１時間加熱硬化
し、目的とする膜を得た。The coating solution (C solution) obtained by this mixing was applied onto a soda lime type glass substrate using a bar coater. This was put in a dryer at 150 ° C. and heat-cured for 1 hour to obtain a target film.
【００３０】形成された膜の表面抵抗は三菱油化株式会
社製の表面抵抗計を用いて測定した。また、形成された
膜の３４０〜１８００ｎｍの分光透過率を測定し、ＪＩ
ＳＲ ３１０６に従って日射透過率、可視光透過率を算
出した。また、ヘイズメーターを用いて膜のヘイズ値を
測定し、試料の紫外線領域の分光透過率を測定し、ＩＳ
Ｏ９０５０に従って紫外線透過率を算出した。これらの
結果を表１に示す。また、表１には実施例２〜６、比較
例１、比較例２で得られた膜の特性についても併せて示
した。The surface resistance of the formed film was measured using a surface resistance meter manufactured by Mitsubishi Petrochemical Co., Ltd. Further, the spectral transmittance of the formed film at 340 to 1800 nm was measured, and JI was measured.
According to SR 3106, the solar radiation transmittance and the visible light transmittance were calculated. Further, the haze value of the film was measured using a haze meter, the spectral transmittance of the sample in the ultraviolet region was measured, and IS
The ultraviolet transmittance was calculated according to O9050. Table 1 shows the results. In addition, Table 1 also shows the characteristics of the films obtained in Examples 2 to 6, Comparative Example 1, and Comparative Example 2.
【００３１】[0031]
【表１】 [Table 1]
【００３２】実施例２ ・・・ Ｃ液中の固形分濃度を
１．２重量％、酸化ルテニウムとエポキシ樹脂の重量比
を７５：２５となるようにした以外は実施例１と同様の
方法で膜を作製した。Example 2 In the same manner as in Example 1 except that the solid content concentration in the liquid C was 1.2% by weight and the weight ratio of ruthenium oxide and epoxy resin was 75:25. A membrane was prepared.
【００３３】実施例３ ・・・ Ｃ液中の固形分濃度を
１．４重量％、酸化ルテニウムとエポキシ樹脂の重量比
を７０：３０となるようにした以外は実施例１と同様の
方法で膜を作製した。Example 3 In the same manner as in Example 1 except that the solid content concentration in the liquid C was 1.4% by weight and the weight ratio of ruthenium oxide and epoxy resin was 70:30. A membrane was prepared.
【００３４】実施例４ ・・・ Ｃ液中の固形分濃度を
０．８重量％、酸化ルテニウムとエポキシ樹脂の重量比
を１００：０とし、この溶液をソーダライム系板硝子基
板上にバーコーターを用いて塗布した。これを、８０℃
の乾燥機で３０分乾燥させた後、エタノールで固形分納
度を１．６重量％に希釈したＢ液を更にこの基板上に上
記と同様の方法でで塗布し、２層構造の膜を作製した。Example 4 The solid content concentration in the liquid C was 0.8% by weight, the weight ratio of ruthenium oxide and epoxy resin was 100: 0, and this solution was placed on a soda-lime plate glass substrate with a bar coater. Applied. 80 ℃
After being dried for 30 minutes by the drier, the solution B diluted with ethanol to a solid content of 1.6% by weight is further applied onto this substrate in the same manner as above to form a film having a two-layer structure. did.
【００３５】実施例５ ・・・ Ｂ液中のエポキシ樹脂
の替わりにアクリル樹脂を用い、Ｃ液中の固形分濃度を
１．３重量％、酸化ルテニウムとアクリル樹脂の重量比
を８５：１５となるようにした以外は実施例１と同様の
方法で膜を作製した。Example 5 ... Acrylic resin was used in place of the epoxy resin in the liquid B, the solid content concentration in the liquid C was 1.3% by weight, and the weight ratio of ruthenium oxide to the acrylic resin was 85:15. A film was produced in the same manner as in Example 1 except that the above was adopted.
【００３６】実施例６ ・・・ Ｃ液中の固形分濃度を
４重量％となるようにした以外は実施例５と同様の方法
で膜を作製した。Example 6 A film was prepared in the same manner as in Example 5 except that the solid content concentration in the liquid C was adjusted to 4% by weight.
【００３７】実施例７ ・・・ 酸化ルテニウム（Ｒｕ
Ｏ2）微粒子の替わりに、酸化イリジウム（ＩｒＯ2）を
用い、チタネート系カップリング剤の替わりにシラン系
カップリング剤を使用した以外は実施例１と同様の方法
でＡ液を作製し、Ｃ液中の固形分濃度を１．３重量％と
した以外は実施例１と同様の方法で膜を作製した。Example 7 ... Ruthenium oxide (Ru)
O 2 ) A liquid was prepared in the same manner as in Example 1 except that iridium oxide (IrO 2 ) was used in place of the fine particles, and a silane coupling agent was used in place of the titanate coupling agent. A membrane was produced in the same manner as in Example 1 except that the solid content concentration in the liquid was 1.3% by weight.
【００３８】実施例８ ・・・ 酸化ルテニウム（Ｒｕ
Ｏ2）微粒子の替わりに、ルテニウム酸鉛（Ｐｂ2Ｒｕ2
Ｏ6.5）を用い、Ｃ液中のルテニウム酸鉛とエポキシ樹
脂の重量比を８０：２０とした以外は実施例７と同様の
方法で膜を作製した。EXAMPLE 8 Ruthenium oxide (Ru)
Instead of O 2 ) fine particles, lead ruthenate (Pb 2 Ru 2
O 6.5 ) and a film was prepared in the same manner as in Example 7 except that the weight ratio of lead ruthenate to epoxy resin in the solution C was 80:20.
【００３９】実施例９ ・・・ 酸化ルテニウム（Ｒｕ
Ｏ2）微粒子の替わりに、イリジウム酸鉛（Ｐｂ2Ｉｒ2
Ｏ6.5）を用い、Ｃ液中の全固形分濃度を１．２重量％
とした以外は実施例７と同様の方法で膜を作製した。Example 9 Ruthenium oxide (Ru)
Instead of O 2 ) fine particles, lead iridate (Pb 2 Ir 2
O 6.5 ) and the total solid content concentration in liquid C is 1.2% by weight.
A film was produced in the same manner as in Example 7, except that
【００４０】比較例１ ・・・ 用いる酸化ルテニウム
微粒子の平均粒径を１２０ｎｍとした以外は実施例１と
同様の方法で膜を作製した。得られた膜付きガラスは、
ヘイズ値が３５と非常に高く、曇りガラスの様になって
しまった。また、インク中に多量の沈殿が生じてしま
い、目的とする膜、及びインクが得られなかった。Comparative Example 1 A film was prepared in the same manner as in Example 1 except that the ruthenium oxide fine particles used had an average particle size of 120 nm. The film-coated glass obtained was
The haze value was extremely high at 35, and it looked like frosted glass. In addition, a large amount of precipitate was generated in the ink, and the desired film and ink could not be obtained.
【００４１】比較例２ ・・・ Ｃ液中の固形分濃度を
１重量％、酸化ルテニウムとエポキシ樹脂の重量比を８
０：２０となるようにした以外は比較例１と同様の方法
で膜を作製した。得られた膜付きガラスは、比較例１と
同様に、ヘイズ値が１８と非常に高く、曇りガラスの様
になってしまった。また、インク中に多量の沈殿が生じ
てしまい、目的とする膜、及びインクは得られなかっ
た。Comparative Example 2 The solid content concentration in the liquid C was 1% by weight, and the weight ratio of ruthenium oxide and epoxy resin was 8%.
A film was prepared in the same manner as in Comparative Example 1 except that the ratio was set to 0:20. The obtained glass with a film had a very high haze value of 18 and became like frosted glass as in Comparative Example 1. In addition, a large amount of precipitate was generated in the ink, and the desired film and ink could not be obtained.
【００４２】[0042]
【発明の効果】以上示したように、本発明の日射遮蔽膜
は、特に太陽光スペクトルの強度の大きい近赤外領域
（７８０〜１４００ｎｍ）の日射遮蔽効率が高いので、
日射遮蔽には極めて有効である。また、人体に悪影響を
及ぼす紫外線領域の光を吸収し、かつ可視光領域の透過
率制御も可能であり、太陽光の紫外、可視、近赤外域の
光をまとめて制御できる材料として応用範囲が広い。ま
た、高導電性微粒子を用いているにも関わらず膜の表面
抵抗を１MΩ/□以上にすることができるため、これを施
した室内で、携帯電話等の電波通信機や、ラジオ、テレ
ビ、ポケットベル等の電波受信機の利用が可能となり、
現在の電波事情に適している。また高コストの物理成膜
法により作製された日射遮蔽膜と比較して、簡便で安価
な塗布法で成膜でき、コスト面や大面積成膜の面から工
業的有用性が高い。As described above, the solar shading film of the present invention has a high solar shading efficiency particularly in the near infrared region (780-1400 nm) where the intensity of the sunlight spectrum is large.
It is extremely effective for solar shading. In addition, it absorbs light in the ultraviolet region, which has an adverse effect on the human body, and can control the transmittance in the visible light region. wide. In addition, despite the use of highly conductive fine particles, the surface resistance of the film can be increased to 1 MΩ / □ or more, so in a room where the film is applied, a radio communication device such as a mobile phone, a radio, a television, Radio receivers such as pagers can be used,
Suitable for current radio conditions. In addition, compared with a solar shading film formed by a high-cost physical film forming method, a film can be formed by a simple and inexpensive coating method, and is highly industrially useful in terms of cost and large-area film formation.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｋ 3/00 １０５ Ｃ０９Ｋ 3/00 １０５ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location C09K 3/00 105 C09K 3/00 105
Claims (4)
ム酸化物微粒子、および、含ロジウム酸化物微粒子のう
ちの１種もしくは２種以上からなる平均粒径１００ｎｍ
以下の微粒子が含有された分散液からなる日射遮蔽膜用
塗布液。1. An average particle diameter of 100 nm of at least one of ruthenium-containing oxide fine particles, iridium-containing oxide fine particles, and rhodium-containing oxide fine particles.
A coating solution for a solar radiation shielding film, which comprises a dispersion containing the following fine particles.
ム酸化物微粒子、および、含ロジウム酸化物微粒子のう
ちの１種もしくは２種以上からなる平均粒径１００ｎｍ
以下の微粒子が含有された分散液と、樹脂バインダーと
が混合されてなる日射遮蔽膜用塗布液。2. An average particle diameter of 100 nm consisting of one or more of ruthenium-containing oxide fine particles, iridium-containing oxide fine particles, and rhodium-containing oxide fine particles.
A coating liquid for solar radiation shielding film, which is obtained by mixing a dispersion liquid containing the following fine particles and a resin binder.
２に記載の日射遮蔽膜用塗布液を、基材に塗布後加熱し
て得た日射遮蔽膜。3. A solar radiation shielding film obtained by coating the substrate with the coating liquid for solar radiation shielding film according to claim 1 or 2 and heating the coating liquid.
２に記載の日射遮蔽膜用塗布液を、基材に塗布後加熱し
て得た日射遮蔽膜の上に、更に樹脂膜を被膜した多層日
射遮蔽膜。4. A resin film is further coated on the solar radiation shielding film obtained by coating the substrate with the coating liquid for solar radiation shielding film according to claim 1 or 2 and heating the coating liquid. Multi-layer solar shading film.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8119280A JPH09302284A (en) | 1996-05-14 | 1996-05-14 | Coating fluid for sunlight-screening film and sunlight-screening film made by using the same |
| DE69619484T DE69619484D1 (en) | 1995-12-12 | 1996-12-11 | Coating solution for forming a heat radiation shielding film and method for producing a heat radiation shielding film using the same |
| EP96309018A EP0779343B1 (en) | 1995-12-12 | 1996-12-11 | Coating solution for a heat-ray shielding film and a process for forming a heat-ray shielding film by employing the same |
| KR1019960064330A KR100471098B1 (en) | 1995-12-12 | 1996-12-11 | Coating solution for heat shield film and how to manufacture the heat shield film using it |
| US08/764,006 US5840364A (en) | 1995-12-12 | 1996-12-12 | Coating solution for a heat-ray shielding film and a process for forming a heat-ray shielding film by employing the same |
| TW085115874A TW341593B (en) | 1996-04-22 | 1996-12-23 | Coating solution for a heat-ray shielding film and a process for forming a heat-ray shielding film by employing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8119280A JPH09302284A (en) | 1996-05-14 | 1996-05-14 | Coating fluid for sunlight-screening film and sunlight-screening film made by using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09302284A true JPH09302284A (en) | 1997-11-25 |
Family
ID=14757483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8119280A Pending JPH09302284A (en) | 1995-12-12 | 1996-05-14 | Coating fluid for sunlight-screening film and sunlight-screening film made by using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09302284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181336A (en) * | 1997-09-30 | 1999-07-06 | Sumitomo Metal Mining Co Ltd | Coating fluid for permselective membrane, permselective membrane, and multi layered permselective membrane |
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