JP2005343924A - Self-cleaning agent for building material and building material having self-cleaning coated film - Google Patents
Self-cleaning agent for building material and building material having self-cleaning coated film Download PDFInfo
- Publication number
- JP2005343924A JP2005343924A JP2004162262A JP2004162262A JP2005343924A JP 2005343924 A JP2005343924 A JP 2005343924A JP 2004162262 A JP2004162262 A JP 2004162262A JP 2004162262 A JP2004162262 A JP 2004162262A JP 2005343924 A JP2005343924 A JP 2005343924A
- Authority
- JP
- Japan
- Prior art keywords
- self
- cleaning agent
- cleaning
- weight
- building material
- 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
- Building Environments (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
Description
本発明は，セルフクリーニング剤及びその塗膜を有する建材に関する。 The present invention relates to a self-cleaning agent and a building material having the coating film.
この種セルフクリーニング用途のものとして，例えば光触媒性酸化チタン粒子を含有し，光触媒の光励起によって親水性を呈するようにしたものが知られており，またこれが光の当たらない部位においてセルフクリーニング性を充分に発揮し難い問題点を有することから，光触媒系のものに代えて，例えばコロイダルシリカ，アルコールにアルミナ及び／又はアルミニウムマグネシウム複合酸化物を添加含有することによって親水性を確保し，セルフクリーニング性を確保したものが知られており，この場合セルフクリーニング性に加えて，更に耐水性，耐アルカリ性，耐久性等表層の塗膜性能としても優れたものとし得るとされる。 As this type of self-cleaning application, for example, those containing photocatalytic titanium oxide particles that are made hydrophilic by photoexcitation of the photocatalyst are known. Therefore, in place of the photocatalytic system, for example, colloidal silica, by adding an alumina and / or aluminum magnesium composite oxide to alcohol, the hydrophilicity is ensured and the self-cleaning property is improved. In this case, in addition to self-cleaning properties, it can be said that the coating film performance of the surface layer such as water resistance, alkali resistance and durability can be further improved.
この場合それぞれ相当程度のセルフクリーニング性を呈するものとなし得るが，前者は，上記光の当らない部位の問題に加えて，その組成成分が，特に塗装済み建材にあっては，その樹脂塗膜を劣化させる原因となり易く，樹脂塗膜を有するのが一般である建材へ塗布には必ずしも適したものとはいえず，また後者は，その塗膜性能にも優れるとされるが，特許文献１の表２は，ＪＩＳ５４００塗料の一般試験法に従って，耐水性は水中２４ｈｒ，煮沸１０分，耐アルカリ性は炭酸ナトリウム５％溶液への浸漬によるテストを行った結果であるとされるように，現実の建材設置環境にはそぐわない条件とされているので，これを現実の建材設置環境に添うように，例えばサンシャインによる耐候性テストを行ったり，煮沸テストの時間を延長して，例えばこれを１時間程度としてその塗膜性能を検討すると，屋外使用のセルフクリーニング剤として必要な，例えば耐候性，耐久性等の各種塗膜性能において満足し得る結果を得られないという問題点が残されている。 In this case, it can be said that each of them exhibits a considerable degree of self-cleaning. However, it is not necessarily suitable for application to building materials that generally have a resin coating film, and the latter is also excellent in coating film performance. Table 2 shows that, according to the general test method of JIS5400 paint, water resistance is 24 hours in water, boiling is 10 minutes, and alkali resistance is the result of a test by immersion in a 5% sodium carbonate solution. The conditions are not suitable for the building material installation environment. For this reason, for example, a weather resistance test using sunshine or a boiling test time is extended so that the actual building material installation environment is met. For example, if the coating film performance is examined for about 1 hour, it is not possible to obtain satisfactory results in various coating film performances such as weather resistance and durability necessary for a self-cleaning agent for outdoor use. The point is left.
本発明はかかる事情に鑑みてなされたもので，その解決課題とするところは，第１に，光の環境に左右されず，塗装済み建材にあってもその塗膜を劣化させることがなく，また屋外使用のものとして耐候性，耐久性等の各種塗膜性能にすぐれたセルフクリーニング剤を提供するにあり，第２に，該セルフクリーニング性を可及的長期に確保して汚染の可能性を可及的に解消し得るようにしたセルフクリーニング塗膜を有する建材を提供するにある。 The present invention has been made in view of such circumstances, and the problem to be solved is that, firstly, it is not influenced by the light environment, and the coating film is not deteriorated even in a painted building material. Also, to provide a self-cleaning agent with excellent coating properties such as weather resistance and durability for outdoor use, and secondly, the possibility of contamination by ensuring the self-cleaning property as long as possible. It is an object of the present invention to provide a building material having a self-cleaning coating film that can eliminate as much as possible.
上記課題に添って，本発明者は，光の環境に左右される可能性や樹脂塗膜劣化の可能性を解消するとともに相当程度のセルフクリーニング性を発揮し得ることから，特許文献１に提案されるコロイダルシリカ，水，アルコールを含有するものをベースにして，そのセルフクリーニング性を同等乃至それ以上に確保しながら耐候性，耐久性等屋外使用に適した各種塗膜性能を確保し得るものとするように鋭意検討したところ，上記コロイダルシリカ，水，アルコールに加えて，更にアルミニウムキレートを添加含有することによって，該アルミニウムキレートがコロイダルシリカの−ＯＨ基の縮合触媒及びコロイダルシリカ間の架橋剤の作用を発揮して，縮合作用によってコロイダルシリカを建材表面に担持しその表面を親水化して高いセルフクリーニング性を確保する一方，架橋作用によってコロイダルシリカを結合して三次元的な網状構造をなすものとして，セルフクリーニング塗膜の耐久性を確保する上で有効であるとの知見を得て，本発明を行なうに至ったもので，上記第１の課題に添って，請求項１に記載の発明を，コロイダルシリカ，水及びアルコールを含有するセルフクリーニング剤であって，該セルフクリーニング剤が更にアルミニウムキレートを含有することを特徴とする建材用セルフクリーニング剤としたものである。 In accordance with the above problems, the present inventor proposed in Patent Document 1 because it can eliminate the possibility of being influenced by the light environment and the possibility of deterioration of the resin coating film and exhibit a considerable degree of self-cleaning property. Based on the ones containing colloidal silica, water, alcohol, etc., which can secure various self-cleaning properties while maintaining the same or higher self-cleaning properties, such as weather resistance and durability, and various film performances suitable for outdoor use. In addition to the colloidal silica, water, and alcohol, an aluminum chelate is further added and contained, so that the aluminum chelate becomes a condensation catalyst for -OH group of the colloidal silica and a cross-linking agent between the colloidal silica. The colloidal silica is supported on the surface of building materials by the condensation action, and the surface is hydrophilized to achieve high self While ensuring the leaning properties, the colloidal silica is bonded by a crosslinking action to form a three-dimensional network structure, and the knowledge that it is effective in ensuring the durability of the self-cleaning coating film has been obtained. In order to achieve the invention, in accordance with the first problem, the invention according to claim 1 is a self-cleaning agent containing colloidal silica, water and alcohol, the self-cleaning agent further comprising aluminum. A self-cleaning agent for building materials characterized by containing a chelate.
請求項２に記載の発明は，上記に加えて，コロイダルシリカに対する水，アルコール及びアルミニウムキレートの量を好適のものとすることによって，セルフクリーニング性，耐候性，耐久性等の塗膜性能を向上確保し得るセルフクリーニング剤とするように，これを，コロイダルシリカ１００重量部（ＮＶ換算３０重量部）に対して，水２５０〜２，９００重量部，アルコール５０〜２００重量部，アルミニウムキレート０．０５〜３重量部を含有してなることを特徴とする請求項１に記載の建材用セルフクリーニング剤としたものである。 In addition to the above, the invention according to claim 2 improves the coating performance such as self-cleaning property, weather resistance and durability by making the amount of water, alcohol and aluminum chelate suitable for colloidal silica. In order to obtain a self-cleaning agent that can be ensured, this is divided into 250 to 2,900 parts by weight of water, 50 to 200 parts by weight of alcohol, 100 parts by weight of aluminum chelate, and 100 parts by weight of colloidal silica (30 parts by weight in terms of NV). The self-cleaning agent for building materials according to claim 1, characterized in that it contains 0.5 to 3 parts by weight.
請求項３に記載の発明は，同じく上記に加えて，シランカップリング剤を添加含有するようにすることによって，建材，特に金属素地を除く各種建材に塗布して，その表面に対してセルフクリーニング塗膜を強固に結合することによってその塗布対象への密着性を高度に確保したものとするように，これを，上記アルミニウムキレートに加えて，シランカップリング剤を２〜１０重量部含有してなることを特徴とする請求項１又は２に記載の建材用セルフクリーニング剤としたものである。 In addition to the above, the invention described in claim 3 is applied to building materials, particularly various building materials excluding metal substrates, by adding a silane coupling agent, and self-cleaning the surface. In addition to the above-mentioned aluminum chelate, 2-10 parts by weight of a silane coupling agent is contained so that the adhesion to the coating object is highly secured by firmly bonding the coating film The self-cleaning agent for building materials according to claim 1 or 2, wherein the self-cleaning agent is for building materials.
請求項４に記載の発明は，同じく上記に加えて，上記シランカップリング剤を，特にエポキシ系のものとすることによって，その密着性を更に高度化し，屋外使用のセルフクリーニング剤として高度な耐久性を確保したものとするように，これを，上記シランカップリング剤を，エポキシシランカップリング剤としてなることを特徴とする請求項３に記載の建材用セルフクリーニング剤としたものである。 In addition to the above, the invention described in claim 4 further enhances the adhesion by using the silane coupling agent, particularly an epoxy-based agent, and has a high durability as a self-cleaning agent for outdoor use. The self-cleaning agent for building materials according to claim 3, wherein the silane coupling agent is used as an epoxy silane coupling agent so as to ensure the property.
請求項５に記載の発明は，上記第２の課題に添って，上記セルフクリーニング剤を用いることによって，外装材，窓開口部材，独立構築物等，各種屋外使用の建材の汚染が雨水や放水によってセルフクリーニング性を発揮して可及的に汚染をそれ自体防止し得るものとするように，これを，上記請求項１乃至４のいずれかの建材用セルフクリーニング剤による表層を表面に有してなることを特徴とする外装材，開口部材，屋外構築物等のセルフクリーニング表層を有する建材としたものである。 According to the fifth aspect of the present invention, in accordance with the second problem, by using the self-cleaning agent, contamination of various outdoor-use building materials such as exterior materials, window opening members, and independent structures is caused by rainwater or water discharge. In order to exhibit the self-cleaning property and to prevent contamination as much as possible, this is provided with the surface layer of the building material self-cleaning agent according to claim 1 on the surface. This is a building material having a self-cleaning surface layer such as an exterior material, an opening member, and an outdoor structure.
本発明はこれらをそれぞれ発明の要旨として上記課題解決の手段としたものである。 The present invention uses each of these as the gist of the invention as means for solving the above problems.
本発明は以上のとおりに構成したから，請求項１に記載の発明は，本発明はかかる事情に鑑みてなされたもので，光の環境に左右されず，塗装済み建材にあってもその塗膜を劣化させることがなく，また屋外使用のものとして耐候性，耐久性等の各種塗膜性能にすぐれたセルフクリーニング剤を提供することができる。 Since the present invention is configured as described above, the invention described in claim 1 is made in view of such circumstances, and is not affected by the light environment, and even if it is applied to a painted building material. It is possible to provide a self-cleaning agent that does not deteriorate the film and is excellent in various coating film properties such as weather resistance and durability for outdoor use.
請求項２に記載の発明は，上記に加えて，コロイダルシリカに対する水，アルコール及びアルミニウムキレートの量を好適なものとすることによって，セルフクリーニング性，耐候性，耐久性等の塗膜性能を向上確保したものとすることができる。 In addition to the above, the invention according to claim 2 improves the coating performance such as self-cleaning property, weather resistance, durability, etc. by making the amount of water, alcohol and aluminum chelate suitable for colloidal silica. It can be secured.
請求項３に記載の発明は，同じく上記に加えて，シランカップリング剤を添加含有するようにすることによって，建材，特に金属素地を除く各種建材に塗布して，その表面に対してセルフクリーニング塗膜を強固に結合することによってその塗布対象への密着性を高度に確保したものとすることができる。 In addition to the above, the invention described in claim 3 is applied to building materials, particularly various building materials excluding metal substrates, by adding a silane coupling agent, and self-cleaning the surface. By firmly bonding the coating film, it is possible to secure a high degree of adhesion to the application target.
請求項４に記載の発明は，同じく上記に加えて，上記シランカップリング剤を，特にエポキシ系のものとすることによって，その密着性を更に高度化し，屋外使用のセルフクリーニング剤として高度な耐久性を確保したものとすることができる。 In addition to the above, the invention described in claim 4 further enhances the adhesion by using the silane coupling agent, particularly an epoxy-based agent, and has a high durability as a self-cleaning agent for outdoor use. It is possible to ensure the property.
請求項５に記載の発明は，上記セルフクリーニング剤を用いることによって，外装材，窓開口部材，独立構築物等，各種屋外使用の建材の汚染が雨水や放水によってセルフクリーニング性を発揮して可及的に汚染をそれ自体防止し得るセルフクリーニング塗膜を有する建材を提供することができる。 In the invention of claim 5, by using the self-cleaning agent, contamination of building materials for various outdoor use such as exterior materials, window opening members, independent structures, etc. is possible by exhibiting self-cleaning properties by rainwater or water discharge. Thus, it is possible to provide a building material having a self-cleaning coating film that can prevent contamination itself.
以下本発明を更に具体的に説明すれば，本発明のセルフクリーング剤は，建材への塗布剤として，建材の無機又は有機の金属素地や樹脂塗装面に対して，該建材の生産工程中で事前に，またその建築乃至構築現場で事後に，例えばはけ塗り，スプレー等適宜の塗布方法によって塗布するように使用する液状のものしてあり，これを塗布することによって該建材の表面に付着しまた付着固化する塵埃付着による表面汚染を，セルフクリーニング剤の高度な親水性に基づいて，該建材が雨水を受け，人為的な放水を受けてその流水とともに流下除去し得るようにして，該建材に防汚染性（自己洗浄作用といってもよい）を付与するために使用するものとしてあり，該セルフクリーニング剤は，コロイダルシリカ，水及びアルコールを含有し，これに更にアルミニウムキレートを含有したものをその基本構成としてある。 Hereinafter, the present invention will be described in more detail. The self-cleaning agent of the present invention is used as a coating agent for building materials in the production process of the building materials against the inorganic or organic metal substrate or resin coated surface of the building materials. It is used in a liquid form to be applied by an appropriate application method such as brushing or spraying in advance or after the construction or construction site, and adheres to the surface of the building material by applying this. In addition, surface contamination due to adhering dust that adheres and solidifies on the basis of the highly hydrophilic nature of the self-cleaning agent so that the building material can receive rainwater, receive artificial water discharge, and flow down with the running water, It is used for imparting antifouling properties (may be called self-cleaning action) to building materials, and the self-cleaning agent contains colloidal silica, water and alcohol, Furthermore certain that contain aluminum chelate as its basic structure.
コロイダルシリカは，負に帯電し，粒径を１００ｎｍ以下，例えば１０〜２０ｎｍとする超微細にして透明非定形シリカ粒子を水中に分散してコロイド液をなす市販のものを使用し，該シリカ粒子の−ＯＨ基によってセルフクリーニング剤の親水性を確保し，セルフクリーニング剤を建材表面に担持させ，−ＯＨ基を該建材表面に多数存在する状態として，上記雨水，放水等水の供給によるセルフクリーニング性を確保するものとしてある。 The colloidal silica is a negatively charged, ultra-fine particle having a particle size of 100 nm or less, for example, 10 to 20 nm, and a commercially available one in which transparent amorphous silica particles are dispersed in water to form a colloidal liquid. -OH groups ensure the hydrophilicity of the self-cleaning agent, the self-cleaning agent is supported on the surface of the building material, and a large number of -OH groups exist on the surface of the building material. It is intended to ensure sex.
セルフクリーニング剤において，コロイダルシリカの量は，例えば１００重量部（ＮＶ換算３０重量部）に対して，水２５０〜２，９００重量部を添加し，またアルコール５０〜２００重量部を添加するものとしてあり，このとき水及びアルコールはコロイド液の分散体をなすように用いるものとしてある。 In the self-cleaning agent, the amount of colloidal silica is, for example, that 250 to 2,900 parts by weight of water and 50 to 200 parts by weight of alcohol are added to 100 parts by weight (30 parts by weight in terms of NV). At this time, water and alcohol are used to form a dispersion of colloidal liquid.
水の添加量が２５０重量部を下回ると，コロイド液の固形分濃度が大きくなりすぎて，コロイダルシリカの凝集を招くことによって，セルフクリーニング剤として安定性が損われる傾向を招き，また２，９００重量部を上回ると固形分濃度が少なくなりすぎて，セルフクリーニング剤の塗布に際してコロイダルシリカ供給の均一性が損われ，セルフクリーニング性にムラを生じる傾向を招き易い。 If the amount of water added is less than 250 parts by weight, the solid content concentration of the colloidal liquid becomes too high, causing aggregation of colloidal silica, leading to a tendency to deteriorate stability as a self-cleaning agent, and 2,900. If it exceeds the parts by weight, the solid content concentration becomes too low, and the uniformity of the colloidal silica supply during coating of the self-cleaning agent tends to be impaired, and the self-cleaning property tends to be uneven.
アルコールの添加は，上記コロイド液の分散体として，主に後述のアルミキレートの溶解と，本例にあっては更にシランカップリング剤と他の成分との相溶性を向上するためであり，アルコールとして，例えばエタノール等を好適に使用することができるが，アルコールの添加量が５０重量部を下回ると，アルミキレートの溶解性を充分に確保し得ない結果，アルミキレートがツブ状に残存してセルフクリーニング塗膜の外観不良を招来し，またシランカップリング剤の相溶性を充分に確保し得ない結果，セルフクリーニング剤の分離現象を招来する可能性が残り，また２００重量部を超えると，必要以上の濃度となってアルコールの無駄が生じるとともに揮発性が高くなり，セルフクリーニング剤の塗布に際して同様にコロイダルシリカ供給の均一性が損なわれてセルフクリーニング塗膜の外観不良を招く可能性を生じる。 Alcohol is added as a dispersion of the above colloidal liquid, mainly for the purpose of improving the compatibility between the dissolution of the aluminum chelate described below and, in this example, the silane coupling agent and other components. For example, ethanol or the like can be preferably used. However, if the amount of alcohol added is less than 50 parts by weight, the solubility of the aluminum chelate cannot be sufficiently secured, resulting in the aluminum chelate remaining in the form of protrusions. As a result of poor appearance of the self-cleaning coating film and insufficient compatibility of the silane coupling agent, there is a possibility of causing a separation phenomenon of the self-cleaning agent, and when exceeding 200 parts by weight, When the concentration is higher than necessary, alcohol is wasted and volatility increases. Uniformity is impaired raise the possibility of causing a poor appearance of the self-cleaning coating film.
セルフクリーニング剤は，このようにコロイダルシリカ，水，アルコールを含有するとともに，更にアルミニウムキレートを添加することによって，該アルミニウムキレートがコロイダルシリカの−ＯＨ基の縮合触媒及びコロイダルシリカ間の架橋剤の作用を発揮して，縮合作用によってコロイダルシリカを建材表面に担持しその表面を親水化して高いセルフクリーニング性を確保する一方，架橋作用によってコロイダルシリカを結合して三次元的な網状構造をなすものとして，セルフクリーニング塗膜の耐久性を確保するものとなる。 The self-cleaning agent thus contains colloidal silica, water, and alcohol, and further, by adding an aluminum chelate, the aluminum chelate acts as a condensation catalyst for the -OH group of the colloidal silica and a cross-linking agent between the colloidal silica. As a result, the colloidal silica is supported on the surface of the building material by condensation and the surface is hydrophilized to ensure high self-cleaning, while the colloidal silica is bonded to form a three-dimensional network structure by crosslinking. , Ensuring the durability of the self-cleaning coating film.
上記組成のセルフクリーニング剤において，アルミニウムキレートは，これを０．０５〜３重量部添加含有するものとしてあり，アルミニウムキレートの添加量は少量でよいが，これが０．０５重量部を下回ると，上記縮合触媒及び架橋剤としても作用が充分に得られず，特にセルフクリーニング剤としてその塗膜の耐久性を確保し難くなる傾向を招き，３重量部を上回ると，セルフクリーニング剤のＰＨ値が下がりすぎてコロイダルシリカの凝集を招く傾向を生じ，同様にコロイダルシリカ供給の均一性が損われる可能性がある。 In the self-cleaning agent having the above composition, the aluminum chelate is added in an amount of 0.05 to 3 parts by weight, and the addition amount of the aluminum chelate may be small. Even if it acts as a condensation catalyst and a crosslinking agent, it is difficult to ensure the durability of the coating film, particularly as a self-cleaning agent. When the amount exceeds 3 parts by weight, the pH value of the self-cleaning agent decreases. This too tends to cause agglomeration of the colloidal silica, and the uniformity of the colloidal silica supply may be similarly lost.
セルフクリーニング剤は，更に好ましくはシランカップリング剤を添加するのがよく，該シランカップリング剤は，樹脂塗装によって樹脂塗膜を有する等の各種建材表面に対して，これに塗布したセルフクリーニング塗膜を強固に結合させて，高度な密着性を確保し，特に屋外使用の建材用セルフクリーニング剤としてその耐候性，耐久性を確保したものとなる。 The self-cleaning agent is more preferably added with a silane coupling agent. The silane coupling agent is applied to the surface of various building materials having a resin coating film by resin coating. The film is firmly bonded to ensure a high degree of adhesion, particularly as a self-cleaning agent for building materials for outdoor use, ensuring its weather resistance and durability.
シランカップリング剤には，アミノシランカップリング剤，メルカプトシランカップリング剤，メタクリロキシシランカップリング剤，ビニルシランカップリング剤等が知られ，これらの添加を妨げるものではないが，エポキシシランカップリング剤を使用するのが好ましい。これはエポキシシランカップリング剤は，エポキシ基の開環重合反応によって，特に密着性向上の作用が大きく，一方で耐水性，耐候性に対する悪影響，例えばアミノシランカップリング剤を用いた場合等にみられることのある，セルフクリーニング塗膜が水溶性のものとなって長期に雨水，放水等を受けるとその溶解の可能性が生じるといった問題もないことによって，セルフクリーニング剤の密着性向上に特に好適と見られるからである。 As the silane coupling agent, aminosilane coupling agent, mercaptosilane coupling agent, methacryloxysilane coupling agent, vinylsilane coupling agent, etc. are known. It is preferred to use. This is because epoxy silane coupling agents are particularly effective in improving adhesion due to the ring-opening polymerization reaction of epoxy groups, while they have an adverse effect on water resistance and weather resistance, such as when aminosilane coupling agents are used. It is particularly suitable for improving the adhesion of self-cleaning agents, because there is no problem that the self-cleaning coating film becomes water-soluble and does not cause the possibility of dissolution when subjected to rainwater or water discharge for a long time. Because it is seen.
上記組成にして更にアルミニウムキレートを添加したセルフクリーニング剤において，シランカップリング剤は，これを，２〜１０重量部添加含有するものとしてある。シランカップリング剤が２重量部を下回るとその結合作用が充分に得られない結果，セルフクリーニング塗膜の高度な密着性を得られなくなる傾向を招き，１０重量部を上回ると塗布対象の建材における接触角が高くなる結果，セルフクリーニング性が劣るとともに耐候性も低下する傾向を招く可能性がある。 In the self-cleaning agent having the above composition and further added with an aluminum chelate, the silane coupling agent contains 2 to 10 parts by weight of the silane coupling agent. When the silane coupling agent is less than 2 parts by weight, the binding action is not sufficiently obtained, and as a result, a high degree of adhesion of the self-cleaning coating film tends to be obtained. As a result of the high contact angle, the self-cleaning property may be inferior and the weather resistance may be lowered.
セルフクリーニング剤の製造には，例えばアルミキレートをアルコールに溶解し，これに水，撹拌しながらのコロイダルシリカを加える工程によるのが，アルミキレートの充分な溶解を確保する上で好ましく，シランカップリング剤を加えるときは，更にアルコールとの混合液としてこれを加えることによってその相溶性を確保するのが好ましい。セルフクリーニング剤は，例えば容器に封入して市販することが可能であり，建材への塗布は，樹脂塗膜を有するサイディング，窯業系タイル等の外装材，樹脂塗膜を有するアルミサッシ，鋼製ドア等の開口部材，同じく樹脂塗膜を有するエクステリア関係の屋外構築物等に広く行なうことができるが，例えばガラス面等の透明面への塗布は光の干渉による縞模様を呈することがあるのでこの点に留意する必要がある。 For the production of the self-cleaning agent, for example, it is preferable to dissolve aluminum chelate in alcohol and add water and colloidal silica while stirring to ensure sufficient dissolution of the aluminum chelate. When an agent is added, it is preferable to ensure compatibility by adding it as a mixed solution with alcohol. Self-cleaning agents can be marketed, for example, in containers, and applied to building materials such as siding with resin coating, exterior materials such as ceramic tiles, aluminum sash with resin coating, and steel. Although it can be widely applied to exterior members such as doors and exterior structures that also have a resin coating, for example, application to a transparent surface such as a glass surface may exhibit a stripe pattern due to light interference. It is necessary to keep this in mind.
本発明の実施に当って，コロイダルシリカ，水，アルコール，アルミキレート，必要に応じて使用するシランカップリング剤，セルフクリーニング剤の塗布，セルフクリーニング塗膜を有する建材等の各具体的形態については，上記発明の要旨に反しない限り様々なものとすることができ，以上のものに殊更限定するには及ばない。 In carrying out the present invention, colloidal silica, water, alcohol, aluminum chelate, silane coupling agent to be used as necessary, application of self-cleaning agent, building materials having a self-cleaning coating film, etc. Various modifications can be made without departing from the gist of the invention described above, and the present invention is not limited to the above.
エタノール６０重量部に対して，アルミニウムキレート（川研ファインケミカル製アルミキレートＡ（Ｗ））０．７重量部を溶解させ，純水５００重量部を加え，これにコロイダルシリカ（日産化学工業製スノーテックス３０）１００重量部（ＮＶ換算３０重量部）を撹拌しながら徐々に加えてセルフクリーニング剤を作成した。 To 60 parts by weight of ethanol, 0.7 part by weight of aluminum chelate (Aluminum chelate A (W) manufactured by Kawaken Fine Chemicals) is dissolved, 500 parts by weight of pure water is added, and colloidal silica (Snowtex manufactured by Nissan Chemical Industries, Ltd.) is added. 30) A self-cleaning agent was prepared by gradually adding 100 parts by weight (30 parts by weight in terms of NV) while stirring.
実施例１のセルフクリーニング液に，更にエタノール６０重量部に対してエポキシシランカップリング剤（信越化学工業製ＫＢＭ−４０３）６重量部を混合した溶液を加えてセルフクリーニング剤を作成した。 A self-cleaning agent was prepared by adding a solution obtained by mixing 6 parts by weight of an epoxysilane coupling agent (KBM-403 manufactured by Shin-Etsu Chemical Co., Ltd.) to 60 parts by weight of ethanol.
エタノール６０重量部に対して，純水５００重量部を加え，これにコロイダルシリカ（日産化学工業製スノーテックス３０）１００重量部を撹拌しながら徐々に加えてセルフクリーニング剤を作成した。 To 60 parts by weight of ethanol, 500 parts by weight of pure water was added, and 100 parts by weight of colloidal silica (Snowtex 30 manufactured by Nissan Chemical Industries, Ltd.) was gradually added with stirring to prepare a self-cleaning agent.
エタノール２６重量部に対して，アルミニウムマグネシウム複合酸化物（シーアイ化成製Ａｌ２０３／ＭｇＯアルコールスラリー ＮＶ１０ｗｔ％）３．９重量部を溶解させ，純水２３０重量部を加え，これにコロイダルシリカ（日産化学工業製スノーテックス３０）１００重量部を撹拌しながら徐々に加えてセルフクリーニング剤を作成した。 To 26 parts by weight of ethanol, 3.9 parts by weight of aluminum magnesium complex oxide (CI203 / MgO alcohol slurry NV10 wt%) was added, 230 parts by weight of pure water was added, and colloidal silica (Nissan Chemical Industries) was added. Snowtex 30) 100 parts by weight were gradually added with stirring to prepare a self-cleaning agent.
上記実施例１，２，比較例１，２によって作成したセルフクリーニング剤についてそれぞれ親水性，耐汚染性，セロファンテープ付着性，耐沸騰水性，耐候性の性能試験を行った。その結果を表１に示す。 The self-cleaning agents prepared in Examples 1 and 2 and Comparative Examples 1 and 2 were subjected to performance tests for hydrophilicity, stain resistance, cellophane tape adhesion, boiling water resistance, and weather resistance, respectively. The results are shown in Table 1.
親水性は，各セルフクリーニング剤を試験体表面に塗布し，接触角測定機（協和界面科学製ＣＡ−Ｘ１５０）によって，その初期接触角を測定し，表１に，接触角が良好な親水性の１０°を基準にしてそれ以下か，それ以上かを記載し，耐汚染性は，試験体に対するカーボン，タール，土を混合した人工汚水の１Ｌ／３ｍｉｎ流下，水の１Ｌ／３ｍｉｎ流下，３ｍｉｎ間乾燥を１０回繰返した後に汚染有無を目視観察し，表１に残留の全くないものを◎とする４段階で表示した。またセロファンテープ付着性は上記と同様の試験体表面にカッターで１ｍｍピッチの碁盤目を形成した後，セロファンテープの圧着テスト，耐沸騰水性は，上記と同様の試験体の沸騰水中１時間浸漬テスト，耐候性は，ウエザーメーターの２０００時間（屋外暴露１０年間に相当）テストを行ない，それぞれ試験体の接触角を同じく接触角測定機（同）によって測定し，接触角が３０°以下を◎，３０〜４０°を○，４０〜６０°を△，６０°以上を×として４段階で表示した。 For hydrophilicity, each self-cleaning agent was applied to the surface of the specimen, and the initial contact angle was measured with a contact angle measuring machine (CA-X150, manufactured by Kyowa Interface Science). Table 1 shows hydrophilic properties with good contact angles. It is described below whether it is less than or more than 10 °, and the contamination resistance is 1 L / 3 min flow of artificial sewage mixed with carbon, tar, and soil, 1 L / 3 min flow of water, 3 min. After repeated drying for 10 times, the presence or absence of contamination was visually observed, and in Table 1, those having no residue were displayed in 4 stages. For cellophane tape adhesion, a 1 mm pitch grid is formed on the surface of the test specimen similar to the above, and then the cellophane tape pressure test and boiling water resistance are the same test specimen immersed in boiling water for 1 hour. , Weather resistance was tested for 2000 hours (equivalent to 10 years of outdoor exposure) with a weather meter, and the contact angle of each specimen was measured with the same contact angle measuring machine (same as above). 30 to 40 ° is indicated by ◯, 40 to 60 ° is indicated by Δ, and 60 ° or more is indicated by ×.
実施例，比較例の初期接触角はいずれも１０°以下であり，親水性に大きな差異は見られず，また耐汚染性もいずれも極めて良好であるが，セロファンテープ付着性，耐沸騰水性，耐候性において実施例はいずれも極めて良好乃至良好な結果を示す一方で，比較例はいずれも試験後に接触角が劣り，４０°を超えて△又は×の結果である。実施例のものは耐汚染性が極めて良好であるとともに，これら現実の建材設置環境に添い又はそれ以上に厳しいセロファンテープ付着性，耐沸騰水性，耐候性の各試験後においても接触角が３０°以下乃至４０°以下の◎乃至○の結果であり，長期に使用される建材として，その耐候性と耐久性に優れたものであることが確認された。また実施例１と実施例２とを比較すると，特に実施例２は全ての性能試験において極めて良好な結果を示し，建材に対するセルフクリーニング剤として極めて好適なものであることが併せて判明した。 The initial contact angles of the examples and comparative examples are both 10 ° or less, no significant difference in hydrophilicity is observed, and the stain resistance is very good, but the cellophane tape adhesion, boiling water resistance, While all the examples show extremely good or good results in weather resistance, the comparative examples all have a poor contact angle after the test, with a result of Δ or x exceeding 40 °. In the examples, the contamination resistance is very good, and the contact angle is 30 ° even after each test of cellophane tape adhesion, boiling water resistance, and weather resistance, which is harsh or more severe than these actual building material installation environments. As a result of ◎ to ○ below 40 ° or less, it was confirmed that the building material used for a long time was excellent in weather resistance and durability. Moreover, when Example 1 and Example 2 were compared, especially Example 2 showed the very favorable result in all the performance tests, and it became clear that it was very suitable as a self-cleaning agent with respect to building materials.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162262A JP2005343924A (en) | 2004-05-31 | 2004-05-31 | Self-cleaning agent for building material and building material having self-cleaning coated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162262A JP2005343924A (en) | 2004-05-31 | 2004-05-31 | Self-cleaning agent for building material and building material having self-cleaning coated film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2005343924A true JP2005343924A (en) | 2005-12-15 |
Family
ID=35496608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004162262A Pending JP2005343924A (en) | 2004-05-31 | 2004-05-31 | Self-cleaning agent for building material and building material having self-cleaning coated film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005343924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008127513A (en) * | 2006-11-24 | 2008-06-05 | Kikusui Chemical Industries Co Ltd | Hydrophilic inorganic paint |
| WO2019073698A1 (en) * | 2017-10-10 | 2019-04-18 | 関西ペイント株式会社 | Method for forming surface protective coating film for floor surfaces |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572735B2 (en) * | 1977-03-11 | 1982-01-18 | ||
| JPS6154066B2 (en) * | 1978-07-10 | 1986-11-20 | Toray Industries | |
| JPS624060B2 (en) * | 1979-03-01 | 1987-01-28 | Toray Industries | |
| JPS624074B2 (en) * | 1980-10-24 | 1987-01-28 | Toray Industries | |
| JPS6258634B2 (en) * | 1984-03-29 | 1987-12-07 | Toray Industries | |
| JPH01256576A (en) * | 1988-04-05 | 1989-10-13 | Toray Ind Inc | Nonglare hard coating film |
| JPH05428B2 (en) * | 1982-10-14 | 1993-01-05 | Toshiba Silicone | |
| JPH05295325A (en) * | 1992-04-15 | 1993-11-09 | Matsushita Electric Works Ltd | Coating composition |
| JPH0747613A (en) * | 1993-03-08 | 1995-02-21 | Essilor Internatl (Cie Gen Opt) | Wear-resistant coating composition of silane hydrolyzate-aluminum compound series and wear-resistant and impact-resistant coated product having this |
| JPH10158579A (en) * | 1996-11-29 | 1998-06-16 | Sekisui Chem Co Ltd | Hydrophilic coating composition |
| JP2000288466A (en) * | 1999-04-09 | 2000-10-17 | Daikin Ind Ltd | Heat insulating coating structure |
| JP2002221602A (en) * | 2001-01-26 | 2002-08-09 | Fukuvi Chem Ind Co Ltd | Antireflection film excellent in liquid resistance |
-
2004
- 2004-05-31 JP JP2004162262A patent/JP2005343924A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572735B2 (en) * | 1977-03-11 | 1982-01-18 | ||
| JPS6154066B2 (en) * | 1978-07-10 | 1986-11-20 | Toray Industries | |
| JPS624060B2 (en) * | 1979-03-01 | 1987-01-28 | Toray Industries | |
| JPS624074B2 (en) * | 1980-10-24 | 1987-01-28 | Toray Industries | |
| JPH05428B2 (en) * | 1982-10-14 | 1993-01-05 | Toshiba Silicone | |
| JPS6258634B2 (en) * | 1984-03-29 | 1987-12-07 | Toray Industries | |
| JPH01256576A (en) * | 1988-04-05 | 1989-10-13 | Toray Ind Inc | Nonglare hard coating film |
| JPH05295325A (en) * | 1992-04-15 | 1993-11-09 | Matsushita Electric Works Ltd | Coating composition |
| JPH0747613A (en) * | 1993-03-08 | 1995-02-21 | Essilor Internatl (Cie Gen Opt) | Wear-resistant coating composition of silane hydrolyzate-aluminum compound series and wear-resistant and impact-resistant coated product having this |
| JPH10158579A (en) * | 1996-11-29 | 1998-06-16 | Sekisui Chem Co Ltd | Hydrophilic coating composition |
| JP2000288466A (en) * | 1999-04-09 | 2000-10-17 | Daikin Ind Ltd | Heat insulating coating structure |
| JP2002221602A (en) * | 2001-01-26 | 2002-08-09 | Fukuvi Chem Ind Co Ltd | Antireflection film excellent in liquid resistance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008127513A (en) * | 2006-11-24 | 2008-06-05 | Kikusui Chemical Industries Co Ltd | Hydrophilic inorganic paint |
| WO2019073698A1 (en) * | 2017-10-10 | 2019-04-18 | 関西ペイント株式会社 | Method for forming surface protective coating film for floor surfaces |
| JPWO2019073698A1 (en) * | 2017-10-10 | 2020-11-05 | 関西ペイント株式会社 | Method of forming a surface protective film on the floor |
| JP7060609B2 (en) | 2017-10-10 | 2022-04-26 | 関西ペイント株式会社 | Method of forming a surface protective film on the floor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101082721B1 (en) | Photocatalytic coating material, photocatalytic composite material and process for producing the same, self-cleaning water-based coating comopsitions, and self-cleaning member | |
| US7482421B2 (en) | Superprimer | |
| TWI375705B (en) | ||
| JP3348635B2 (en) | Coating composition, method for forming hydrophilic film, and hydrophilic film-coated article | |
| JP5467431B2 (en) | Water-based inorganic zinc-rich coating composition | |
| KR101035905B1 (en) | Paint Composition Including Nano-Ceramic and Polymer Resin Against Pollution and Rust of Steel Structure and Method for Surface-Protection and Anticorrosion Using the Same | |
| JP4812902B1 (en) | Antifouling paint composition and method for forming antifouling coating film | |
| JP4840899B2 (en) | Hydrophilic antifouling coating composition, film forming method using the same and use thereof | |
| JPH10330646A (en) | Water-based inorganic coating composition and formation of coating film | |
| JP6043663B2 (en) | Water-based hydrophilic coating composition that forms a film excellent in self-cleaning ability against adhering dirt and surface treatment material that forms a film excellent in self-cleaning ability against adhering dirt | |
| JP2007284600A (en) | Coating composition containing high corrosion-proof zinc powder | |
| JP2003342526A (en) | Self-cleaning aqueous coating composition and self- cleaning member | |
| JP2005343924A (en) | Self-cleaning agent for building material and building material having self-cleaning coated film | |
| JP2991293B2 (en) | Zinc rich paint composition | |
| JP4641563B1 (en) | Antifouling paint composition and method for forming antifouling coating film | |
| JP2004204091A (en) | Photocatalyst coating composition | |
| JPS6317976A (en) | Zinc-rich paint composition | |
| JP3845527B2 (en) | Laminated structure with photocatalyst coating | |
| JP2002371223A (en) | Aqueous inorganic coating material composition | |
| JPH1017850A (en) | Water-base stainproof agent composition | |
| JP2004051643A (en) | Self-cleaning water-borne coating composition and self-cleaning member | |
| CA2986952A1 (en) | Water-based zinc-rich pre-construction primer | |
| JP2000129641A (en) | Pollution control method in tunnel, and cleaning method and apparatus therefor | |
| JP2918705B2 (en) | How to protect porous masonry | |
| JPH0566418B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070328 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100810 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101001 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20110607 |