JP2000109580A - Antifouling member and imparting member with antifouling property - Google Patents
Antifouling member and imparting member with antifouling propertyInfo
- Publication number
- JP2000109580A JP2000109580A JP10283727A JP28372798A JP2000109580A JP 2000109580 A JP2000109580 A JP 2000109580A JP 10283727 A JP10283727 A JP 10283727A JP 28372798 A JP28372798 A JP 28372798A JP 2000109580 A JP2000109580 A JP 2000109580A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- resin layer
- antifouling
- resin
- siloxane bond
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、親水性により防汚
性が付与された防汚性部材及び部材に防汚性を付与する
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antifouling member to which antifouling property is imparted by hydrophilicity and a method for imparting antifouling property to the member.
【０００２】[0002]
【従来の技術】例えば、屋外に設置される防音壁や道路
標識、視線誘導装置等の道路用工作物等は、常に車両の
排気ガスや塵埃にさらされているために、時々洗浄しな
いとこれら排気ガスや塵埃等が表面に付着して汚れ、著
しくその機能や美感を低下させる問題がある。しかしな
がら人手によって洗浄するのは大変面倒であり且つ手間
であることから、表面を親水性にして防汚性能を付与す
ることが行われている。部材表面に親水性を付与するに
は、部材表面の塗装に用いる塗料に親水化剤を添加する
方法や二酸化チタン等の光触媒を含む光触媒含有層を表
面に形成し、光触媒によって表面を親水化することによ
って防汚性を付与する方法がある。2. Description of the Related Art For example, soundproof walls, road signs, and road works such as gaze guidance devices which are installed outdoors are constantly exposed to vehicle exhaust gas and dust, and therefore must be cleaned occasionally. There is a problem that exhaust gas, dust, and the like adhere to the surface and become dirty, which significantly lowers its function and beauty. However, since cleaning by hand is very troublesome and troublesome, the surface is made hydrophilic to impart antifouling performance. In order to impart hydrophilicity to the member surface, a method of adding a hydrophilic agent to the paint used for coating the member surface or forming a photocatalyst containing layer containing a photocatalyst such as titanium dioxide on the surface and hydrophilizing the surface with the photocatalyst Thus, there is a method of imparting antifouling properties.
【０００３】二酸化チタン等の光触媒は、紫外線を照射
することにより活性化されてその表面は親水化され、塵
埃や車両の排気ガス等の汚染物質が表面に付着しても、
降雨等の水が表面に付着する汚染物質と表面との間に水
が割り込んで汚染物質を浮かせるために付着しにくく、
また付着しても降雨等により容易に洗い流されて除去さ
れるため、汚染物質が堆積しにくくなるのである。A photocatalyst such as titanium dioxide is activated by irradiating ultraviolet rays to make its surface hydrophilic, and even if pollutants such as dust and vehicle exhaust gas adhere to the surface,
Water such as rainfall adheres to the surface. Water breaks in between the contaminants and the surface and floats the contaminants.
Even if it adheres, it is easily washed away due to rainfall and the like and removed, so that it is difficult for the pollutant to deposit.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら前記の如
き光触媒は、紫外線の照射によって活性化されることに
より、始めてその表面は親水化されて防汚性が付与され
るが、屋外に設置して太陽光のみの弱い紫外線量でその
表面を活性化させようとすると所定の日数が必要であ
り、初期の段階では活性化が不充分であるために、親水
化されず防汚性は発揮されない。However, the above-mentioned photocatalyst is activated by irradiation with ultraviolet rays, so that its surface becomes hydrophilic for the first time and is given an antifouling property. It takes a certain number of days to activate the surface with a weak amount of ultraviolet light alone, and the activation is insufficient at an early stage, so that the surface is not hydrophilized and does not exhibit antifouling properties.
【０００５】また、光触媒による親水性能付与は、部材
表面に光触媒を含有する層を形成する必要があり、さら
に部材の表面材質を光触媒の活性から保護するためには
部材と光触媒層の中間に主として無機系材質より成る中
間層を形成させる必要があり、コストが増大して不利と
なる。In order to impart hydrophilicity with a photocatalyst, it is necessary to form a layer containing the photocatalyst on the surface of the member, and to protect the surface material of the member from the activity of the photocatalyst, it is mainly provided between the member and the photocatalyst layer. It is necessary to form an intermediate layer made of an inorganic material, which increases costs and is disadvantageous.
【０００６】そこで本発明は、光触媒を用いない親水化
処理によって親水性を付与することにより、上記の如き
問題を解決し、防汚性を付与した防汚性部材及び部材に
防汚性を付与する方法を提供せんとするものである。Accordingly, the present invention solves the above-mentioned problems by imparting hydrophilicity by a hydrophilic treatment without using a photocatalyst, and imparts an antifouling property to the antifouling member and the member having the antifouling property. It does not provide a way to do this.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明は次のような構成としている。すなわち、本
発明に係る防汚性部材は、部材表面にシロキサン結合を
有する無機系樹脂を含有する樹脂層が形成され、さらに
その樹脂層の表面はコロナ放電処理、プラズマ放電処
理、紫外線照射処理等からなる群から選ばれた１種類あ
るいは２種類以上の組合わせからなる親水化処理が施さ
れて親水性が付与されていることを特徴とするものであ
る。In order to achieve the above object, the present invention has the following arrangement. That is, in the antifouling member according to the present invention, a resin layer containing an inorganic resin having a siloxane bond is formed on the member surface, and the surface of the resin layer is further subjected to corona discharge treatment, plasma discharge treatment, ultraviolet irradiation treatment, and the like. Or a combination of two or more kinds selected from the group consisting of:
【０００８】またこの発明に係る部材に防汚性を付与す
る方法は、部材表面にシロキサン結合を有する無機系樹
脂を含有する樹脂層を形成し、次いでその樹脂層の表面
にコロナ放電処理、プラズマ放電処理、紫外線照射処理
等からなる群から選ばれた１種類あるいは２種類以上の
組合わせからなる親水化処理を施すことにより、その表
面に親水性を付与することを特徴とするものである。According to a method of imparting antifouling properties to a member according to the present invention, a resin layer containing an inorganic resin having a siloxane bond is formed on the surface of the member, and then the surface of the resin layer is subjected to corona discharge treatment and plasma treatment. The surface is given hydrophilicity by performing a hydrophilic treatment comprising one or a combination of two or more selected from the group consisting of a discharge treatment, an ultraviolet irradiation treatment and the like.
【０００９】部材表面にシロキサン結合を有する樹脂層
を形成する表面処理は、耐候性つまり太陽光照射による
劣化を防ぐために用いられることがあるが、その場合、
当該樹脂層が形成された直後は側鎖にアルキル基等の無
極性タイプの有機成分が結合しており、親水性能は極め
て弱く、むしろ撥水性を呈する。したがって特に親水化
処理を施さない場合は水濡れ性が悪く、付着している汚
染物質を洗い流すことができないだけでなく、一度形成
された水流れの通路に集中して水が流れるために雨筋の
汚れがつきやすく、著しく美観を損ねる結果となる。し
たがって従来用いられている耐候性向上のための、シロ
キサン結合を有する樹脂成分を表層に形成する表面処理
方法では、防汚性能は確保できないのである。A surface treatment for forming a resin layer having a siloxane bond on the member surface is sometimes used to prevent weather resistance, that is, deterioration due to sunlight irradiation.
Immediately after the formation of the resin layer, a nonpolar organic component such as an alkyl group is bonded to a side chain, and the hydrophilic property is extremely weak, and rather exhibits water repellency. Therefore, especially when the hydrophilic treatment is not performed, the water wettability is poor, so that not only the contaminants adhered cannot be washed away, but also the water flows in the once formed water flow path, and the rain streaks. Is liable to be stained, resulting in a significantly impaired aesthetic appearance. Therefore, antifouling performance cannot be ensured by the surface treatment method of forming a resin component having a siloxane bond on the surface layer, which is conventionally used for improving weather resistance.
【００１０】本発明によれば、部材表面に形成された樹
脂層中に含まれるシロキサン結合を有する樹脂成分が、
コロナ放電処理、プラズマ放電処理、紫外線照射処理等
の親水化処理により、次の化１で示されるごとく、Ｓｉ
の側鎖にＯＨのごとき官能基を保有するようになり、表
面の極性が高まり、つまり表面張力が大きくなることに
より親水性が強くなり、汚れが降雨や水洗等により容易
に洗浄される。According to the present invention, the resin component having a siloxane bond contained in the resin layer formed on the member surface is
By hydrophilization treatment such as corona discharge treatment, plasma discharge treatment, and ultraviolet irradiation treatment, as shown in the following Chemical Formula 1, Si
Has a functional group such as OH in the side chain thereof, and the polarity of the surface is increased, that is, the surface tension is increased, so that the hydrophilicity is enhanced, and the dirt is easily washed by rainfall or washing with water.
【００１１】[0011]
【化１】 Embedded image
【００１２】もっとも、従来の如く、表面に、シロキサ
ン結合を有する無機系樹脂を含有する樹脂層が形成され
た部材を特に親水化処理を施さずに屋外に設置した場合
でも、長期間の後に次第に表面が親水化する事実があ
る。しかし、特に親水化処理を施されずに屋外に設置さ
れ、その後徐々に親水化する場合、親水化するまでの間
は付着した汚染物質が降雨などにより洗い流されないた
めに著しく汚れた外観を呈し、その商品価値を損なうこ
ととなる。However, even when a member having a resin layer containing an inorganic resin having a siloxane bond on the surface is installed outdoors without performing a hydrophilic treatment as in the prior art, the member gradually becomes longer after a long period of time. There is a fact that the surface becomes hydrophilic. However, if it is installed outdoors without being subjected to hydrophilic treatment, and then gradually becomes hydrophilic, it will have a very dirty appearance because the attached contaminants will not be washed away by rain etc. until it becomes hydrophilic. , Which impairs its commercial value.
【００１３】これに対して、本発明により、シロキサン
結合を有する無機系樹脂を含有する樹脂層が形成された
部材の当該樹脂層表面を、コロナ放電処理、プラズマ放
電処理、紫外線照射処理等の親水化処理を施すことによ
り、当該樹脂層表面に親水性能を付与した場合、当該表
面の親水性は屋外環境に置かれても維持され続けること
ができる。この両者の親水化の様子を屋外での経過期間
とその期間後の対水接触角（度）とで示すと図１のよう
になる。On the other hand, according to the present invention, the surface of the resin layer of a member having a resin layer containing an inorganic resin having a siloxane bond formed thereon is subjected to a hydrophilic treatment such as a corona discharge treatment, a plasma discharge treatment, or an ultraviolet irradiation treatment. In the case where hydrophilicity is imparted to the surface of the resin layer by performing the chemical conversion treatment, the hydrophilicity of the surface can be maintained even in an outdoor environment. FIG. 1 shows the state of hydrophilization of the two in terms of the elapsed period outdoors and the contact angle (degree) with respect to water after the period.
【００１４】このように図１からも明らかなように、本
発明によれば、親水化処理を施した表面は、その部材が
実用に供された直後から降雨などの水により付着した汚
染物質が洗い流されるため、初期の汚れのない美観を保
持し続けることができる。As is apparent from FIG. 1, as described above, according to the present invention, the surface subjected to the hydrophilization treatment is contaminated with water or other contaminants immediately after the member is put into practical use. Since it is washed away, it is possible to keep the initial clean appearance.
【００１５】[0015]
【発明の実施の形態】次に、本発明の実施の形態につい
て説明する。Next, an embodiment of the present invention will be described.
【００１６】部材の表面にシロキサン結合を有する無機
系樹脂を含有する樹脂層を形成する方法としては、たと
えば、ゾルゲル法によりアルコキシシランの加水分解物
を部材表面に塗布しその後重合させることにより得るこ
とができ、また、ポリシラザン又はその変成物からなる
塗膜形成用組成物を部材表面に塗布し水蒸気を含んだ雰
囲気中で加熱乾燥することによっても得ることができ
る。As a method for forming a resin layer containing an inorganic resin having a siloxane bond on the surface of a member, for example, a method of applying a hydrolyzate of alkoxysilane to the surface of the member by a sol-gel method and then polymerizing the same is used. Alternatively, it can also be obtained by applying a coating film forming composition comprising polysilazane or a modified product thereof to the surface of a member and drying by heating in an atmosphere containing steam.
【００１７】部材表面にこれらの樹脂層前駆体を塗布す
る方法としては、特に規定するものではないが、たとえ
ば、スプレーコート、ディップコート、スピンコート、
フローコート、ロールコート等が適している。塗布回数
は１回あるいは２回以上でも可能である。樹脂層形成後
の厚みは０．０１μｍ〜５０μｍがよく、より好ましく
は１μｍ〜２０μｍである。０．０１μｍ未満であると
部材を完全に被覆することができず、したがって親水化
処理の効果が部材表面全体に及ばない。５０μｍ超で
は、親水性の効果が飽和して、膜厚が厚い分だけ経済的
に不利となる。なお部材は、その材質は特に限定され
ず、合成樹脂、金属、無機材料等、任意の材料からなる
ものでよく、また単一の材料からなるものであってもよ
いし、複数の材料からなるものであってもよく、そして
これらの材料で１層から形成されていてもよいし、複数
層で形成されていてもよく、要はこの任意の部材に前記
樹脂層が外層として形成されていればよい。The method of applying these resin layer precursors to the member surface is not particularly limited, but examples thereof include spray coating, dip coating, spin coating, and the like.
Flow coat, roll coat and the like are suitable. The number of application times may be one or two or more. The thickness after forming the resin layer is preferably 0.01 μm to 50 μm, and more preferably 1 μm to 20 μm. If it is less than 0.01 μm, the member cannot be completely covered, and the effect of the hydrophilization treatment does not reach the entire surface of the member. If it exceeds 50 μm, the effect of hydrophilicity is saturated, and it is economically disadvantageous because the film thickness is large. The material of the member is not particularly limited, and may be made of any material such as a synthetic resin, a metal, and an inorganic material, may be made of a single material, or may be made of a plurality of materials. It may be formed of one layer of these materials, or may be formed of a plurality of layers. The point is that the resin layer is formed as an outer layer on this arbitrary member. I just need.
【００１８】次に、部材の表面にシロキサン結合を有す
る無機系樹脂を含有する樹脂層を形成した後に、コロナ
放電処理、ブラズマ放電処理、紫外線照射処理等の親水
化処理を施し、その表面にＯＨのごとき官能基を保有さ
せる。これらの親水化処理は１種類の方法単独でもよい
し、２つ以上の方法を組み合わせてもよい。このように
親水化処理を施された部材表面の親水性は水に対する接
触角で４０度以下になるのが好ましく、より好ましくは
２０度以下がよい。４０度を超えると、本発明の目的と
するところの防汚性能が十分ではなく、屋外に設置後汚
れが徐々に蓄積する。Next, after forming a resin layer containing an inorganic resin having a siloxane bond on the surface of the member, the member is subjected to a hydrophilization treatment such as a corona discharge treatment, a plasma discharge treatment, or an ultraviolet irradiation treatment. A functional group such as One of these methods may be used alone, or two or more methods may be used in combination. The hydrophilicity of the surface of the member subjected to the hydrophilization treatment as described above is preferably 40 degrees or less in contact angle with water, and more preferably 20 degrees or less. If it exceeds 40 degrees, the antifouling performance intended by the present invention is not sufficient, and the dirt gradually accumulates after installation outdoors.
【００１９】本発明により表面が親水化された部材を、
親水化処理を施した後に実用に供するまでの保管、運
搬、据え付け等の間に傷がつかないように、その表面に
保護フィルムを貼ってもよい。ただし、その場合、保護
フィルムの粘着面に塗布されている粘着糊が親水性表面
に付着してフィルムを剥離した後も糊が残り、親水性能
を阻害しないように、糊残りがないようなフィルムを選
定する必要がある。The member whose surface has been made hydrophilic according to the present invention is
A protective film may be applied to the surface of the surface after the hydrophilization treatment so that the surface is not damaged during storage, transportation, installation and the like until practical use. However, in this case, the adhesive glue applied to the adhesive surface of the protective film adheres to the hydrophilic surface, and the glue remains even after the film is peeled off. Must be selected.
【００２０】本発明に係る防汚性部材の用途は、屋外に
設置されて常に車両の排気ガスや塵埃にさらされている
防音壁やトンネル内装板、道路標識、視線誘導装置、橋
梁、防護柵、高欄、照明灯、サイン等の道路用工作物等
に限定されるものではなく、建材、建築物の外装材や内
装材、窓枠材、窓ガラス等、防汚性の要求される屋内外
において広く使用されるものである。降雨のない場所で
も水洗により容易に汚れが落ちることから、本発明の効
果は十分に発揮される。The antifouling member according to the present invention is used for a soundproof wall or a tunnel interior plate, a road sign, a line-of-sight guiding device, a bridge, a protective fence which is installed outdoors and is always exposed to vehicle exhaust gas and dust. Not limited to road works such as railing, lighting, signs, etc., indoor and outdoor where antifouling properties are required, such as building materials, exterior and interior materials of buildings, window frame materials, window glass, etc. Are widely used in Even in a place where there is no rainfall, dirt is easily removed by washing with water, so that the effect of the present invention is sufficiently exhibited.
【００２１】[0021]
【実施例】以下、本発明の実施例について説明する。Embodiments of the present invention will be described below.
【００２２】（実施例１）ポリカーボネートからなる合
成樹脂板により透光板を作製し、この透光板に以下のコ
ーティング剤を塗布した。シリカゾル（日本合成ゴム、
グラスカＡ液、固形分２０ｗｔ％）３重量部を混合後、
メチルトリメトキシシラン（日本合成ゴム、グラスカＢ
液）１重量部とエタノールを添加し、さらに２時間攪拌
し、メチルトリメトキシシランを部分的に加水分解反応
と脱水縮重合反応させることにより調整した。これを上
記ポリカーボネートにフローコートにより塗布し、１２
０度、５０分加熱することによりシロキサン結合を有す
る無機系樹脂を含有する樹脂層を形成した。樹脂層の厚
みは８μｍであった。この塗布板にコロナ放電処理を次
の条件にて施した。塗布板と放電ワイヤーの距離を５ｍ
ｍ、印加電圧を２ｋＶ、処理速度を２ｍ／分とした。コ
ロナ放電処理後の当該板表面の水に対する接触角は７度
であった。Example 1 A light-transmitting plate was prepared from a synthetic resin plate made of polycarbonate, and the following coating agent was applied to the light-transmitting plate. Silica sol (Japanese synthetic rubber,
After mixing 3 parts by weight of Glasca A solution, solid content 20 wt%)
Methyltrimethoxysilane (Nippon Synthetic Rubber, Glasca B
Liquid) 1 part by weight and ethanol were added, and the mixture was further stirred for 2 hours, and adjusted by partially subjecting methyltrimethoxysilane to a hydrolysis reaction and a dehydration-condensation polymerization reaction. This was applied to the above polycarbonate by flow coating, and 12
By heating at 0 degrees for 50 minutes, a resin layer containing an inorganic resin having a siloxane bond was formed. The thickness of the resin layer was 8 μm. The coated plate was subjected to a corona discharge treatment under the following conditions. 5m distance between coating plate and discharge wire
m, the applied voltage was 2 kV, and the processing speed was 2 m / min. After the corona discharge treatment, the contact angle of the plate surface with water was 7 degrees.
【００２３】（実施例２）ステンレスにより道路反射鏡
を作製し、以下のコーティング剤を塗布した。ペルヒド
ロポリシラザンをデカヒドロナフタレンに溶解し、２０
ｗｔ％の濃度に調整した。この溶液１０ｇに攪拌しなが
らトリ−ｎ−ペンチルアミン２００ｍｇを室温で徐々に
添加した。これを大気中で上記ステンレス上にスプレー
塗装法にて塗装した。これを１００度、９０％で１時間
加熱することによりシロキサン結合を有する無機系樹脂
を含有する樹脂層を形成した。樹脂膜厚は２μｍであっ
た。この塗布板にブラズマ放電処理を次の条件にて施し
た。塗布板とプラズマ吐出口の距離を１０ｍｍ、プラズ
マ出力を０．５ｋＷ／１０ｃｍ、処理速度を１ｍ／分と
した。プラズマ放電処理後の当該板表面の水に対する接
触角は１２度であった。(Example 2) A road reflector was made of stainless steel, and the following coating agent was applied. Dissolve perhydropolysilazane in decahydronaphthalene and add 20
The concentration was adjusted to wt%. 200 mg of tri-n-pentylamine was gradually added to 10 g of this solution at room temperature with stirring. This was applied on the stainless steel in the air by a spray coating method. This was heated at 100 ° C. and 90% for 1 hour to form a resin layer containing an inorganic resin having a siloxane bond. The resin film thickness was 2 μm. The coated plate was subjected to a plasma discharge treatment under the following conditions. The distance between the coating plate and the plasma discharge port was 10 mm, the plasma output was 0.5 kW / 10 cm, and the processing speed was 1 m / min. The contact angle of the plate surface with water after the plasma discharge treatment was 12 degrees.
【００２４】（実施例３）アクリルにより道路反射鏡を
作製し、以下のコーティング剤を塗布した。ペルヒドロ
ポリシラザンをデカヒドロナフタレンに溶解し、２０ｗ
ｔ％の濃度に調整した。この溶液１０ｇに攪拌しながら
トリ−ｎ−ペンチルアミン２００ｍｇを室温で徐々に添
加した。これを大気中で上記アクリル上にフローコート
で塗装した。これを８０度、９０％で１時間加熱するこ
とによりシロキサン結合を有する無機系樹脂を含有する
樹脂層を形成した。樹脂層の膜厚は５μｍであった。こ
の塗布板に次の条件にて紫外線照射処理を施した。照射
条件は波長２５４ｎｍの光強度１０ｍＷ／ｃｍ２で５分
照射した。紫外線照射処理後の当該板表面の水に対する
接触角は４度であった。(Example 3) A road reflector was made of acrylic, and the following coating agent was applied. Dissolve perhydropolysilazane in decahydronaphthalene and add 20 w
The concentration was adjusted to t%. 200 mg of tri-n-pentylamine was gradually added to 10 g of this solution at room temperature with stirring. This was coated on the acrylic with a flow coat in the air. This was heated at 80 ° C. and 90% for 1 hour to form a resin layer containing an inorganic resin having a siloxane bond. The thickness of the resin layer was 5 μm. The coated plate was subjected to an ultraviolet irradiation treatment under the following conditions. Irradiation was performed at a light intensity of 10 mW / cm 2 at a wavelength of 254 nm for 5 minutes. The contact angle of the plate surface with water after the ultraviolet irradiation treatment was 4 degrees.
【００２５】（比較例１）ポリカーボネートからなる合
成樹脂板により透光板を作製し、この透光板に実施例１
と同様の条件にて、シロキサン結合を有する無機系樹脂
を含有する樹脂層を形成した。親水化処理は施さなかっ
た。この表面の水に対する接触角は７０度であった。(Comparative Example 1) A light-transmitting plate was prepared from a synthetic resin plate made of polycarbonate, and the light-transmitting plate was used in Example 1
Under the same conditions as described above, a resin layer containing an inorganic resin having a siloxane bond was formed. No hydrophilization treatment was applied. The contact angle of this surface with water was 70 degrees.
【００２６】（比較例２）ステンレスにより道路反射鏡
を作製し、このステンレスに実施例２と同様の条件に
て、シロキサン結合を有する無機系樹脂を含有する樹脂
層を形成した。親水化処理は施さなかった。この表面の
水に対する接触角は６５度であった。Comparative Example 2 A road reflector was made of stainless steel, and a resin layer containing an inorganic resin having a siloxane bond was formed on the stainless steel under the same conditions as in Example 2. No hydrophilization treatment was applied. The contact angle of this surface with water was 65 degrees.
【００２７】（比較例３）アクリルにより道路反射鏡を
作製し、このアクリルに実施例３と同様の条件にて、シ
ロキサン結合を有する無機系樹脂を含有する樹脂層を形
成した。親水化処理は施さなかった。この表面の水に対
する接触角は６５度であった。(Comparative Example 3) A road reflector was made of acrylic, and a resin layer containing an inorganic resin having a siloxane bond was formed on this acrylic under the same conditions as in Example 3. No hydrophilization treatment was applied. The contact angle of this surface with water was 65 degrees.
【００２８】（比較例４）ポリカーボネートからなる合
成樹脂板により透光板を作製した。シロキサン結合を有
する無機系樹脂を含有する樹脂層を形成は形成せず、親
水化処理も施さなかった。この表面の水に対する接触角
は８５度であった。(Comparative Example 4) A light transmitting plate was manufactured using a synthetic resin plate made of polycarbonate. No resin layer containing an inorganic resin having a siloxane bond was formed, and no hydrophilic treatment was performed. The contact angle of this surface with water was 85 degrees.
【００２９】（比較例５）ステンレスにより道路反射鏡
を作製した。シロキサン結合を有する無機系樹脂を含有
する樹脂層を形成せず、親水化処理も施さなかった。こ
の表面の水に対する接触角は８０度であった。Comparative Example 5 A road reflector was made of stainless steel. No resin layer containing an inorganic resin having a siloxane bond was formed, and no hydrophilic treatment was performed. The contact angle of this surface with water was 80 degrees.
【００３０】（比較例６）アクリルにより道路反射鏡を
作製した。シロキサン結合を有する無機系樹脂を含有す
る樹脂層を形成せず、親水化処理も施さなかった。この
表面の水に対する接触角は８８度であった。Comparative Example 6 A road reflector was made of acrylic. No resin layer containing an inorganic resin having a siloxane bond was formed, and no hydrophilic treatment was performed. The contact angle of this surface with water was 88 degrees.
【００３１】前記実施例１〜３および比較例１〜６で作
成した供試板の防汚性能を以下の方法で評価した。The antifouling performance of the test plates prepared in Examples 1 to 3 and Comparative Examples 1 to 6 was evaluated by the following method.
【００３２】（１）国道沿道の建物の屋上に曝露して、
３カ月目、１年目の汚れの程度を測定した。ポリカーボ
ネート板は全光線透過率で、ステンレスおよびアクリル
の道路反射鏡は反射率にて、汚れの程度を測定し、表１
に示した。(1) Exposure to the roof of a building along the national highway
The degree of soiling at the third month and the first year was measured. The degree of dirt was measured by the total light transmittance of the polycarbonate plate and the reflectivity of the stainless steel and acrylic road reflectors.
It was shown to.
【００３３】（２）人工泥（成分は、試験用ダスト３種
１０％、試験用ダスト８種２５％、炭酸カルシウム５
％、カーボンブラック５％、オイル５％、水５０％）を
各供試板に塗布し、６０度の雰囲気で２４時間養生した
後に流水にて水洗し、その後の汚れの程度を測定した。
ポリカーボネート板は全光線透過率で、ステンレスおよ
びアクリルの道路反射鏡は反射率にて、汚れの程度を測
定し、表２に示した。(2) Artificial mud (composition: 3 kinds of test dust 10%, 8 kinds of test dust 25%, calcium carbonate 5
%, Carbon black 5%, oil 5%, water 50%) was applied to each test plate, cured for 24 hours in an atmosphere of 60 ° C., washed with running water, and the degree of contamination thereafter was measured.
The degree of dirt was measured by the total light transmittance of the polycarbonate plate and by the reflectance of the stainless steel and acrylic road reflectors, and the results are shown in Table 2.
【００３４】[0034]
【表１】 [Table 1]
【００３５】[0035]
【表２】 [Table 2]
【００３６】表１および表２から、本発明に係る実施例
１〜３は、比較例１〜６に対して、屋上での曝露評価、
人工泥での防汚性能評価のいずれにおいても、防汚性能
が優れていることが明らかである。From Tables 1 and 2, Examples 1 to 3 according to the present invention were compared with Comparative Examples 1 to 6 in terms of the evaluation of exposure on the roof,
It is clear that the antifouling performance is excellent in any of the antifouling performance evaluations with artificial mud.
【００３７】[0037]
【発明の効果】本発明による部材は、初期の親水性が強
く、屋外の実際の環境において降雨による洗浄効果が高
く、屋外設置直後から１年経時しても汚れがほとんど着
いておらず、透明性や反射率あるいは美観等がほぼ初期
のまま維持される。また降雨の期待できない場所におい
ても水洗により容易に汚れが除去でき、水洗後にはほぼ
初期の外観が維持される。The member according to the present invention has a strong initial hydrophilicity, has a high cleaning effect by rainfall in an actual outdoor environment, has almost no stains even after one year from immediately after installation outdoors, and is transparent. The properties, the reflectance, the appearance, etc. are maintained almost in the initial state. In addition, dirt can be easily removed by washing with water even in places where rainfall cannot be expected, and almost the initial appearance is maintained after washing with water.
【図１】親水化処理が施された本発明に係る防汚性部材
と親水化処理を施していない部材における親水化の様子
を、屋外での経過期間とその各期間後の対水接触角
（度）とで示した図である。FIG. 1 shows the state of hydrophilization of an antifouling member according to the present invention subjected to hydrophilization treatment and a member not subjected to hydrophilization treatment, as to the elapsed time outdoors and the contact angle of water after each period. FIG.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０９Ｋ 3/00 １１２ Ｃ０９Ｋ 3/00 １１２Ｆ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C09K 3/00 112 C09K 3/00 112F
Claims (2)
系樹脂を含有する樹脂層が形成され、さらにその樹脂層
の表面はコロナ放電処理、プラズマ放電処理、紫外線照
射処理等からなる群から選ばれた１種類あるいは２種類
以上の組合わせからなる親水化処理が施されて親水性が
付与されていることを特徴とする防汚性部材。1. A resin layer containing an inorganic resin having a siloxane bond is formed on the surface of a member, and the surface of the resin layer is selected from the group consisting of corona discharge treatment, plasma discharge treatment, ultraviolet irradiation treatment and the like. An antifouling member, characterized in that it has been subjected to a hydrophilization treatment comprising one or a combination of two or more types to impart hydrophilicity.
系樹脂を含有する樹脂層を形成し、次いでその樹脂層の
表面にコロナ放電処理、プラズマ放電処理、紫外線照射
処理等からなる群から選ばれた１種類あるいは２種類以
上の組合わせからなる親水化処理を施すことにより、そ
の表面に親水性を付与することを特徴とする部材に防汚
性を付与する方法。2. A resin layer containing an inorganic resin having a siloxane bond is formed on the surface of the member, and the surface of the resin layer is selected from the group consisting of corona discharge treatment, plasma discharge treatment, ultraviolet irradiation treatment, and the like. A method for imparting antifouling properties to a member, characterized by imparting hydrophilicity to its surface by performing a hydrophilic treatment comprising one or a combination of two or more kinds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10283727A JP2000109580A (en) | 1998-10-06 | 1998-10-06 | Antifouling member and imparting member with antifouling property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10283727A JP2000109580A (en) | 1998-10-06 | 1998-10-06 | Antifouling member and imparting member with antifouling property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000109580A true JP2000109580A (en) | 2000-04-18 |
Family
ID=17669320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10283727A Pending JP2000109580A (en) | 1998-10-06 | 1998-10-06 | Antifouling member and imparting member with antifouling property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000109580A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010240538A (en) * | 2009-04-02 | 2010-10-28 | Tostem Corp | Method of imparting hydrophilicity to aluminum building material and aluminum building material to which hydrophilicity is imparted |
| JP2012091352A (en) * | 2010-10-25 | 2012-05-17 | Fujifilm Corp | Hydrophilic thin film and its manufacturing method |
| EP2559806A1 (en) | 2011-08-17 | 2013-02-20 | Center of Excellence Polymer Materials and Technologies (Polimat) | Method for increasing the hydrophilicity of polymeric materials |
| DE112010002171T5 (en) | 2009-05-29 | 2013-03-21 | Dic Corp. | Surface treated substrate and protective film for the light collection side of solar cells using them, and solar cell module |
| CN109912829A (en) * | 2019-02-15 | 2019-06-21 | 美瑞新材料股份有限公司 | A kind of processing method of strap material stain resistance |
-
1998
- 1998-10-06 JP JP10283727A patent/JP2000109580A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010240538A (en) * | 2009-04-02 | 2010-10-28 | Tostem Corp | Method of imparting hydrophilicity to aluminum building material and aluminum building material to which hydrophilicity is imparted |
| DE112010002171T5 (en) | 2009-05-29 | 2013-03-21 | Dic Corp. | Surface treated substrate and protective film for the light collection side of solar cells using them, and solar cell module |
| JP2012091352A (en) * | 2010-10-25 | 2012-05-17 | Fujifilm Corp | Hydrophilic thin film and its manufacturing method |
| EP2559806A1 (en) | 2011-08-17 | 2013-02-20 | Center of Excellence Polymer Materials and Technologies (Polimat) | Method for increasing the hydrophilicity of polymeric materials |
| CN109912829A (en) * | 2019-02-15 | 2019-06-21 | 美瑞新材料股份有限公司 | A kind of processing method of strap material stain resistance |
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