JP2006045419A - Coating composition and film obtained from the same - Google Patents

Coating composition and film obtained from the same Download PDF

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JP2006045419A
JP2006045419A JP2004230745A JP2004230745A JP2006045419A JP 2006045419 A JP2006045419 A JP 2006045419A JP 2004230745 A JP2004230745 A JP 2004230745A JP 2004230745 A JP2004230745 A JP 2004230745A JP 2006045419 A JP2006045419 A JP 2006045419A
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coating composition
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Kiyoshi Momose
淑 百瀬
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating composition forming a coated film having negative ion-generating functions and to provide the film obtained from the same. <P>SOLUTION: The coating composition is prepared by including (a) a silica sol represented by general formula M<SB>2</SB>O-nSiO<SB>2</SB>in an amount of 1-35 pts.wt. expressed in terms of SiO<SB>2</SB>, (b) 0.1-30 pts.wt. of an ion generating substance, (c) 0-50 pts.wt. of an inorganic filler and (d) 5-80 pts.wt. of water [with the proviso that (a)+(b)+(c)+(d) is 100 wt.%]. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、コーティング用組成物(以下、単に、組成物と称する)に関し、さらに詳しくは、アルミニウム、ステンレス、鉄などの金属、セラミック、石材、セメントコンクリート、スレート板、木材、紙、布等の基材の表面、或いは、有機系又は無機系の塗膜の表面に塗布し、低温で短時間の加熱又は常温乾燥するだけで、不燃性でマイナスイオンを継続的に発生する膜を形成することができ、消臭性、抗菌性及び有機物分解性等の特性を持ち、火災防止、環境浄化等の分野に寄与するものである。   The present invention relates to a coating composition (hereinafter simply referred to as a composition), and more specifically, a metal such as aluminum, stainless steel, iron, ceramics, stone, cement concrete, slate board, wood, paper, cloth, etc. Applying to the surface of a substrate or the surface of an organic or inorganic coating and forming a film that is nonflammable and generates negative ions continuously by simply heating at low temperature or drying at room temperature. It has properties such as deodorizing properties, antibacterial properties, and organic matter decomposability, and contributes to fields such as fire prevention and environmental purification.

周知の通り、マイナスイオンは、大腸菌、黄色ブドウ球菌、緑膿菌、MRSA(メチシリン耐性黄色ブドウ球菌)等に対する抗菌性が顕著であり、また、消臭性及び有機物分解性等を有している。   As is well known, the negative ions are remarkably antibacterial against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, MRSA (methicillin-resistant Staphylococcus aureus), etc., and have a deodorizing property and an organic matter degrading property. .

そして、マイナスイオンの発生源として、宇宙線、ラドン、植物、放射性物質(放射性元素を内蔵する鉱石類)等が公知であり、近年では、光線(紫外線又は非可視光線)の照射下で、マイナスイオンを発生させる性質を有したチタン化合物(アナターゼ型酸化チタン、燐酸チタニア等)が発見され、これらは光触媒と呼称されている。   As a source of negative ions, cosmic rays, radon, plants, radioactive substances (ores containing radioactive elements) and the like are known, and in recent years, under irradiation of light (ultraviolet or invisible light), minus Titanium compounds (anatase-type titanium oxide, phosphate titania, etc.) having the property of generating ions have been discovered, and these are called photocatalysts.

光触媒及び放射性物質の作用は公知であるので詳述は省略するが、光触媒と放射性物質のイオン発生に関わる相違点は以下の通りである。つまり、放射性物質は、大気中の水蒸気塊と炭酸ガスに接触すると、過酸化水素(H)とマイナスイオン(H)を生じさせる作用を有しているが、光触媒は、光線の照射下でないと、作用しない。 Since the actions of the photocatalyst and the radioactive substance are well known, detailed description thereof will be omitted, but the differences relating to the ion generation of the photocatalyst and the radioactive substance are as follows. In other words, the radioactive substance has an action of generating hydrogen peroxide (H 2 O 2 ) and negative ions (H + ) when it comes into contact with water vapor mass and carbon dioxide in the atmosphere. Does not work unless under irradiation.

そこで、従来技術では、マイナスイオン発生機能を備えた塗膜を得るために、光触媒或いは放射性物質(以下、両者を単に、イオン発生物質と称する)に高分子系の結合剤を混合するという手法で組成物を調整していた。   Therefore, in the prior art, in order to obtain a coating film having a function of generating negative ions, a polymer-based binder is mixed with a photocatalyst or a radioactive substance (hereinafter, both are simply referred to as ion generating substances). The composition was adjusted.

従来の技術による組成物には、実用上、以下のような問題点があった。(1)この組成物は、高分子系の結合剤(天然又は合成の液状樹脂)を用いるために、結合剤が乾燥、硬化すると、組成物中に分散させられたイオン発生物質の表面は、樹脂の形成する防水性の膜により、被覆されてしまうこととなる。すると、大気中の水蒸気塊と炭酸ガスはイオン発生物質と直接的に接触できないから、組成物の形成する膜のマイナスイオン発生機能は低下させられた。(2)高分子系の結合剤は、イオン発生物質の有機結合手切断作用により、化学分解されてしまうために、この組成物の膜を形成する結合剤の劣化が促進させられる。その結果、組成物の形成塗膜の耐久性が低下させられた。   The composition according to the prior art has the following problems in practice. (1) Since this composition uses a high molecular binder (natural or synthetic liquid resin), when the binder is dried and cured, the surface of the ion generating substance dispersed in the composition is: It will be covered with a waterproof film formed by the resin. Then, since the water vapor mass and carbon dioxide in the atmosphere cannot directly contact the ion generating substance, the negative ion generating function of the film formed by the composition was lowered. (2) Since the high molecular binder is chemically decomposed by the organic bond cleaving action of the ion generating substance, the deterioration of the binder forming the film of the composition is promoted. As a result, the durability of the formed coating film of the composition was lowered.

本発明は、上記の従来技術を背景になされたもので、その目的とするところは、(1)組成物は、水性で、揮発性有機物を含まず、作業性が良く、(2)常温又は低温加熱(40〜150℃)により乾燥、硬化して塗膜を形成し、(3)塗膜は、シロキサン結合を有していて、水蒸気塊及び炭酸ガスを透過させる性質があり、(4)不燃性で1000 ℃以上の高温に耐え、(5)マイナスイオン及び過酸化水素による劣化がなく、耐候性に優れ、(6)マイナスイオンを発生する機能を備えており、消臭、抗菌、揮発性有機物分解、等に効果的に作用させることができる、等の特徴を備えた組成物を提供することであり、従来では十分に対応できなかった種々の用途に使用可能な組成物を提供することにある。   The present invention has been made against the background of the above-described conventional technology. The object of the present invention is as follows: (1) The composition is aqueous, does not contain volatile organic substances, has good workability, and (2) normal temperature or Dry and cure by low-temperature heating (40 to 150 ° C.) to form a coating film. (3) The coating film has a siloxane bond and has a property of permeating water vapor and carbon dioxide, (4) Non-combustible, withstands high temperatures of 1000 ° C or higher, (5) no deterioration due to negative ions and hydrogen peroxide, excellent weather resistance, and (6) functions to generate negative ions, deodorant, antibacterial, volatilization It is to provide a composition having characteristics such as being able to effectively act on organic organic decomposition, etc., and to provide a composition that can be used for various applications that could not be adequately handled in the past There is.

上記目的を達成するために、本発明は、(a)一般式M2・nSiO2[式中、Mは、Na、及び(R4N)であり、n=自然数、Rは1価の有機基である]で表されるシリカゾルの群から選ばれた少なくとも1種のシリカゾルを、SiO換算で1〜35重量部、好ましくは、3〜20重量部、結合剤として用いる。(b)紫外線又は非可視光線を照射するとマイナスイオンを発生させる性質のチタン化合物及び、放射線によりマイナスイオンを発生させる性質の放射性物質(希土類成分を含有する鉱石もしくはセラミック)からなる群から選ばれた少なくとも1種のイオン発生物質を0.1〜30重量部、好ましくは、0.3〜10重量部、(c)膜厚の維持、膜の着色等の目的で、無機充填材0〜50重量部、好ましくは、0〜40重量部、(d)水を5〜80重量部、好ましくは、10〜50重量部、[但し、(a)+(b)+(c)+(d)=100重量%]を混合してなることを特徴とするコーティング用組成物である。 In order to achieve the above object, the present invention provides (a) a general formula M 2 · nSiO 2 wherein M is Na and (R 4 N), n = natural number, and R is a monovalent organic compound. 1 to 35 parts by weight, preferably 3 to 20 parts by weight, in terms of SiO 2 , is used as a binder. (B) Selected from the group consisting of a titanium compound that generates negative ions when irradiated with ultraviolet rays or invisible light, and a radioactive substance (ore or ceramic containing a rare earth component) that generates negative ions by radiation. 0.1 to 30 parts by weight of at least one ion generating material, preferably 0.3 to 10 parts by weight, (c) 0 to 50 parts by weight of an inorganic filler for the purpose of maintaining the film thickness, coloring the film, etc. , 0 to 40 parts by weight, (d) 5 to 80 parts by weight of water, preferably 10 to 50 parts by weight, [(a) + (b) + (c) + (d) = 100% by weight] It is a composition for coating characterized by mixing.

すなわち、本発明は、シリカゾルの群から選ばれた少なくとも1種にイオン発生物質を混合、分散させ、さらに、必要に応じて、無機充填材を加えて配合し、組成物を調整することにより、シリカゾルからなる無機結合剤は、マイナスイオン発生に不可欠な水蒸気塊及び炭酸ガスの透過可能な膜を形成すること、さらに、シリカゾルからなる無機結合剤は、マイナスイオンの有機結合手切断作用の影響を受けないので、マイナスイオンにより劣化させられない膜を形成すること、そして、この形成膜は高マイナスイオン発生機能、不燃性及び耐久性等を兼備すること等の知見に基づいて成されたものである。   That is, the present invention mixes and disperses an ion generating material in at least one selected from the group of silica sols, and further adds and blends an inorganic filler as necessary, thereby adjusting the composition. An inorganic binder made of silica sol forms a water vapor block and a carbon dioxide permeable membrane that are indispensable for the generation of negative ions, and an inorganic binder made of silica sol has the effect of an organic bond cleaving action of negative ions. The film was formed based on the knowledge such as the formation of a film that is not deteriorated by negative ions, and the formation film has high negative ion generation function, nonflammability, durability, etc. is there.

本発明により得られるコーティング用組成物は、アルミニウム、ステンレス、鉄等の金属、コンクリート、スレート板、石材、木材、紙、布、プラスチック、セラミック等の基材の表面に、或いは、有機系又は無機系の塗膜の表面に塗布し、低温で短時間の加熱又は常温で乾燥させるだけで、マイナスイオンを継続的に発生させる機能を備えた不燃性の塗膜を形成することができる。この塗膜は自在に着色できる。また、本組成物の形成する塗膜からはマイナスイオンを継続的に発生するので、消臭、抗菌及び有機物分解等の作用させることができる。   The coating composition obtained by the present invention can be applied to the surface of a substrate such as a metal such as aluminum, stainless steel, iron, concrete, slate plate, stone, wood, paper, cloth, plastic, ceramic, or organic or inorganic. A nonflammable coating film having a function of continuously generating negative ions can be formed by simply applying the coating film to the surface of the coating film and heating it at a low temperature for a short time or drying it at room temperature. This coating can be colored freely. Moreover, since negative ions are continuously generated from the coating film formed by the present composition, it is possible to act such as deodorization, antibacterial action, and organic matter decomposition.

以下、本発明を構成要件別に詳述する。(a)シリカゾル:本発明に使用される(a)成分は一般式MO・nSiO[式中、Mは、Na、又は(R4N)であり、n=自然数、Rは1価の有機基である]で表すことができるシリカゾルであれば特に制限はなく、これらは、単体のままで、或いは、硬化剤と併用して、低温加熱(40〜150℃)又は常温で乾燥、硬化して膜を形成する性質を有しているものであればよく、具体的には、ケイ酸(SiO2)をナトリウム溶液又は第4級アンモニウム塩溶液等の分散媒に懸濁させて調整したものである。 Hereinafter, the present invention will be described in detail by component. (A) Silica sol: The component (a) used in the present invention is a general formula M 2 O · nSiO 2 [wherein M is Na or (R 4 N), n = natural number, R is monovalent There is no particular limitation as long as it is a silica sol that can be represented by the following: These are left alone or in combination with a curing agent, and are dried at a low temperature (40 to 150 ° C.) or room temperature. Any material that cures to form a film may be used. Specifically, silicic acid (SiO 2 ) is suspended in a dispersion medium such as a sodium solution or a quaternary ammonium salt solution and adjusted. It is a thing.

(b)イオン発生物質:本発明に使用される(b)成分は、イオン発生機能を備えた物質であって、大気中の水蒸気塊及び炭酸ガスを同時的に接触させると、過酸化水素と水素を生じさせる性質を備えた非水溶性の物質のことである。具体的には、光によって上記性質が励起される物質(以下、単に、光触媒という)及び、放射能を有する物質(以下、単に、放射性物質という)であり、これらはマイナスイオンを発生する物質として公知である。さらに詳しくは、前者には紫外線によって上記作用が励起される性質のアナターゼ型酸化チタン、非可視光線によって上記作用が励起される性質の燐酸チタニア系化合物等であり、後者は、放射能を有する鉱石もしくはセラミックである。そして、本発明で用いる放射性物質は、放射能370ベクレル/g(放射線濃度)以下の使用届不要物質が実用の安全上望ましい。また、(b)成分は、光触媒、放射性物質の群から選ばれた、少なくとも1種であって、平均粒子径又は平均長さが、好ましくは、100μm以下、さらに好ましくは、0.1〜50μmの大きさのものが用いられる。   (B) Ion generating substance: The component (b) used in the present invention is a substance having an ion generating function. When the water vapor block and carbon dioxide in the atmosphere are contacted simultaneously, hydrogen peroxide and It is a water-insoluble substance that has the property of generating hydrogen. Specifically, there are substances whose properties are excited by light (hereinafter simply referred to as photocatalyst) and substances having radioactivity (hereinafter simply referred to as radioactive substances), which are substances that generate negative ions. It is known. More specifically, the former includes anatase-type titanium oxide whose properties are excited by ultraviolet rays, and a titania phosphate compound whose properties are excited by non-visible light, and the latter is a radioactive ore. Or it is ceramic. The radioactive substance used in the present invention is desirably a substance not requiring use with a radioactivity of 370 becquerel / g (radiation concentration) or less for practical safety. The component (b) is at least one selected from the group of photocatalysts and radioactive substances, and the average particle size or average length is preferably 100 μm or less, more preferably 0.1 to 50 μm. The one of the same is used.

(c)無機充填材:本発明に使用される(c)成分は、塗膜の着色、塗膜の厚み調整、塗膜の硬度調整、等の用途に応じて用いるものであり、平均粒子径又は平均長さが、好ましくは、0.1〜100μm、さらに好ましくは、0.5〜30μmの大きさのものであり、このような無機充填材としては、非水溶性で粒子状もしくは繊維状のものが望ましく、無機体質顔料、無機顔料、機能性顔料、金属粉等を挙げることができ、これらの群から選ばれた1種又は2種以上である。 具体的には、無機体質顔料及び機能性顔料としては、シリカ、ジルコン、アルミナ、カオリン、タルク、ゼオライト、炭酸カルシウム、炭化ケイ素、各種のウイスカー、セルベン、ベントナイト、トルマリン、フェライト、カーボン等を挙げることができ、無機顔料としては、チタン、クロム、鉄、亜鉛、コバルト、マンガン、ニッケル、等の酸化物及び、これらの複合化合物等を挙げることができる。そして、金属粉としては、鉄粉、ステンレス粉、ニッケル粉、真鍮粉、銅粉、亜鉛粉等であるが、これらに限定されるものではない。   (C) Inorganic filler: The component (c) used in the present invention is used according to applications such as coating coloration, coating thickness adjustment, coating hardness adjustment, and the average particle size. Alternatively, the average length is preferably 0.1 to 100 μm, more preferably 0.5 to 30 μm, and the inorganic filler is desirably water-insoluble, particulate or fibrous. , Inorganic extender pigments, inorganic pigments, functional pigments, metal powders, and the like, and one or more selected from these groups. Specifically, inorganic extender pigments and functional pigments include silica, zircon, alumina, kaolin, talc, zeolite, calcium carbonate, silicon carbide, various whiskers, selben, bentonite, tourmaline, ferrite, carbon, etc. Examples of inorganic pigments include oxides such as titanium, chromium, iron, zinc, cobalt, manganese, nickel, and composite compounds thereof. Examples of the metal powder include iron powder, stainless steel powder, nickel powder, brass powder, copper powder, and zinc powder, but are not limited thereto.

(d)水:本発明に使用される(d)成分は組成物の粘度調節又は、イオン発生物質及び無機充填材の分散に必須の成分であり、イオン交換水、蒸留水、水道水を使用できる。また、(a)のシリカゾルに含まれる水も包含される。   (D) Water: The component (d) used in the present invention is an essential component for adjusting the viscosity of the composition or dispersing the ion generating material and the inorganic filler, and uses ion-exchanged water, distilled water, and tap water. it can. Moreover, the water contained in the silica sol of (a) is also included.

本発明の組成物は、上記成分(a)〜(d)のほかに、必要に応じて各種の分散剤、界面活性剤、可塑剤、硬化剤等の添加剤成分(e)を含むことができる(但し、成分(e)の添加量は任意量であって、組成物成分の総量に対して外割計算とする)。   The composition of the present invention may contain additive components (e) such as various dispersants, surfactants, plasticizers, and curing agents, if necessary, in addition to the components (a) to (d). (However, the amount of the component (e) added is arbitrary, and is calculated as an extra calculation with respect to the total amount of the composition components).

そして、本発明の組成物は、(a)成分に(b)、(c)、(d)及び(e)成分を混合、分散せしめることで調整することができ、高速攪拌機、ボールミル、その他の分散機に上記成分(a)〜(d)及び、必要に応じて(e)添加剤を入れ、攪拌することで得られる。   The composition of the present invention can be adjusted by mixing and dispersing the components (b), (c), (d) and (e) in the component (a), such as a high-speed stirrer, ball mill, It can be obtained by adding the above components (a) to (d) and, if necessary, (e) additives to a disperser and stirring.

また、本発明の組成物は、半透明又は着色の液状で得られるから、コンクリート、石材、金属、木材、紙、布などに塗布して用いることができ、常温又は短時間の低温加熱(50〜150℃)により乾燥、硬化して膜を形成する性質のものである。   In addition, since the composition of the present invention is obtained as a translucent or colored liquid, it can be used by being applied to concrete, stone, metal, wood, paper, cloth, etc. ˜150 ° C.) to dry and cure to form a film.

そしてまた、本発明の組成物は、刷毛、スプレイ、フローコート、ロールコート及びデイッピング等の塗装手段を用いて基材にコーティングすることができる。   Moreover, the composition of the present invention can be coated on a substrate using a coating means such as a brush, a spray, a flow coat, a roll coat and a dipping.

さらにまた、本発明の組成物により得られる塗膜は、不燃性であり、マイナスイオン発生機能を備えているので、消臭、抗菌、有機物分解等の広範囲な用途に使用でき、効果を奏することができる。   Furthermore, since the coating film obtained by the composition of the present invention is nonflammable and has a function of generating negative ions, it can be used for a wide range of applications such as deodorization, antibacterial, and organic matter decomposition, and has an effect. Can do.

以下、実施例を挙げ、本発明を更に具体的に説明するが、本発明は特許請求の範囲を超えない限り、以下の実施例に限定されるものではない。なお、実施例中、部及び%は、特に断らない限り重量を表すものとする。   EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated more concretely, this invention is not limited to a following example, unless the range of a claim is exceeded. In the examples, parts and% represent weight unless otherwise specified.

また、実施例中、添加剤成分(e)の部及び%は、組成物成分の総量に対する外割りの重量を表すものとする。   Moreover, the part and% of an additive component (e) in an Example shall represent the external weight with respect to the total amount of a composition component.

実験1:表1−1、1−2、1−3、1−4、1−5、1−6及び1−7に示す45種類の組成物を調整した。なお、組成物の調整にはポットミルを用い、表示の成分を入れて毎分120回転にて60分間攪拌してから取出し、篩(100メッシュ)で濾過した。   Experiment 1: 45 types of compositions shown in Tables 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, and 1-7 were prepared. A pot mill was used to adjust the composition, and the indicated components were added, stirred for 60 minutes at 120 revolutions per minute, removed, and filtered through a sieve (100 mesh).

なお、下記の表中の記号は以下のものを表す。   In addition, the symbol in the following table | surface represents the following.

(a)成分:シリカゾル
(a)N30:シリカドール#30(ナトリウム溶液を分散媒とするシリカゾル、SiO2 濃度約30%、日本化学工業株式会社製、)
(a)N50:シリカドール#50(ナトリウム溶液を分散媒とするシリカゾル、SiO2 濃度約50%、日本化学工業株式会社製、)
(a)AS :アンモニウムシリケートAS(第4級アンモニウム塩溶液を分散媒とするシリカゾル、SiO2 濃度約40%、日本化学工業株式会社製、)
(A) Component: silica sol (a) N30: silica dol # 30 (silica sol using sodium solution as a dispersion medium, SiO 2 concentration of about 30%, manufactured by Nippon Chemical Industry Co., Ltd.)
(A) N50: silica dol # 50 (silica sol using sodium solution as a dispersion medium, SiO 2 concentration of about 50%, manufactured by Nippon Chemical Industry Co., Ltd.)
(A) AS: Ammonium silicate AS (silica sol using a quaternary ammonium salt solution as a dispersion medium, SiO 2 concentration of about 40%, manufactured by Nippon Chemical Industry Co., Ltd.)

(b)成分:イオン発生物質
(b)T :アナターゼ型酸化チタン(堺化学株式会社製、平均粒子径=0.5μm、紫外線励起型物質)
(b)PT :燐酸チタニア系化合物(平均粒子径=0.5μm、非可視光線励起型物質)
(b)M :モナサイト(monazite)鉱石(セラやまいち製、平均粒子径=1μm、天然の放射性物質、放射線量当量=5〜7μSv/測定距離5mm)
(b)SE :セラミック(平均粒子径=1μm、組成:モナサイト38%、アナターゼ型酸化チタン28%、陶土34%)
(B) Component: Ion generating material (b) T: Anatase type titanium oxide (manufactured by Sakai Chemical Co., Ltd., average particle size = 0.5 μm, UV-excited material)
(B) PT: Phosphate titania compound (average particle size = 0.5 μm, invisible light excitation type substance)
(B) M: Monazite ore (manufactured by Serayamaichi, average particle size = 1 μm, natural radioactive material, radiation dose equivalent = 5-7 μSv / measurement distance 5 mm)
(B) SE: Ceramic (average particle size = 1 μm, composition: monasite 38%, anatase-type titanium oxide 28%, porcelain clay 34%)

(c)成分:無機充填材
(c)1 :アルミニウムウイスカー(平均粒子径=1μm)
(c)2 :炭酸カルシウム(平均粒子径=1μm)
(c)3 :酸化クロム(緑色顔料)(平均粒子径=0.5μm)
(C) Component: Inorganic filler (c) 1: Aluminum whisker (average particle size = 1 μm)
(C) 2: Calcium carbonate (average particle size = 1 μm)
(C) 3: Chromium oxide (green pigment) (average particle size = 0.5 μm)

(d)成分:水
(d)1 :イオン交換水
(D) Component: Water (d) 1: Ion exchange water

(e)その他の成分:添加剤
(e)1 :分散剤/ノニオン系界面活性剤
(E) Other components: additives (e) 1: Dispersant / nonionic surfactant

Figure 2006045419
Figure 2006045419
Figure 2006045419
Figure 2006045419
Figure 2006045419
Figure 2006045419
Figure 2006045419
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実験2:マイナスイオン発生量の測定
表1−1〜1−7に示す45種類の組成物をスレート板(寸法:150×150×5mm)の一面に塗布し、常温(25℃)で24時間乾燥後、マイナスイオンカウンター(ITC-202型/アルプス電気株式会社製)を用い、形成塗膜から発生するマイナスイオン量(1CC当たりの個数)を測定した。組成物の塗布量及びマイナスイオン測定値を表2−1及び2−2に示す。なお、ブランクは組成物を塗布してないスレート板の測定値であり、室内のマイナスイオン量と看做すことができる。
Experiment 2: Measurement of the amount of negative ions generated 45 types of compositions shown in Tables 1-1 to 1-7 were applied to one side of a slate plate (dimensions: 150 × 150 × 5 mm), and 24 hours at room temperature (25 ° C.) After drying, the amount of negative ions (number per 1 CC) generated from the formed coating film was measured using a negative ion counter (ITC-202 type / Alps Electric Co., Ltd.). Tables 2-1 and 2-2 show the coating amount of the composition and the measured negative ions. The blank is a measured value of a slate plate not coated with the composition, and can be regarded as the amount of negative ions in the room.

Figure 2006045419
Figure 2006045419
Figure 2006045419
Figure 2006045419

実験2により、本発明の組成物の形成する塗膜はマイナスイオンを発生する機能を備えていることが明らかになった。   Experiment 2 revealed that the coating film formed by the composition of the present invention has a function of generating negative ions.

実験3:高分子系結合剤の形成する膜がマイナスイオン発生量に及ぼす影響を調べるために、表3に示す組成物を調整し、実験2と同一方法で形成膜の発生するマイナスイオン量を測定した。組成物の塗布量及び測定値を表4に示す。なお、表中の(f)Aは高分子系結合剤であり、アクリル樹脂のヒドロゾル(アルマテックスE−170/固形分45%:三井化学製)である。   Experiment 3: In order to investigate the influence of the film formed by the polymeric binder on the amount of negative ions generated, the composition shown in Table 3 was adjusted, and the amount of negative ions generated by the formed film was determined in the same manner as in Experiment 2. It was measured. Table 4 shows the coating amount and measured value of the composition. In the table, (f) A is a polymer binder, and is an acrylic resin hydrosol (Almatex E-170 / solid content 45%: Mitsui Chemicals).

Figure 2006045419
Figure 2006045419

Figure 2006045419
Figure 2006045419

実験3から、高分子系結合剤は、組成物に配したイオン発生物質の効果を妨げ、マイナスイオン発生量を減少させることが判明した。   From Experiment 3, it was found that the polymer binder hinders the effect of the ion generating material provided in the composition and reduces the amount of negative ions generated.

実験4:本発明の組成物の形成する塗膜から発生するマイナスイオンが有機物を分解する作用の効果を調べるために、実験2で調整した組成物の塗膜に赤インク(有機染料)を滴下し、赤インクが分解され、消色される様子を肉眼で観察し、インクの色が消失するまでに要した日数を調べて表5に示した。なお、赤インクはパイロット社製のカートリッジスペアインク(品番IRF-12S-R)を蒸留水で15倍に希釈して用い、組成物の塗膜上にスポイドで0.2CCを滴下した。   Experiment 4: Red ink (organic dye) was dropped on the coating film of the composition prepared in Experiment 2 in order to examine the effect of negative ions generated from the coating film formed by the composition of the present invention on the decomposition of organic substances. Table 5 shows the number of days required until the ink color disappears by observing with the naked eye how the red ink was decomposed and decolored. For the red ink, a pilot cartridge spare ink (product number IRF-12S-R) was diluted 15 times with distilled water, and 0.2 CC was dropped on the coating film of the composition with a dropper.

Figure 2006045419
Figure 2006045419

実験4により、本発明の組成物の形成する塗膜はマイナスイオンを発生し、有機染料の発色機能を消失せしめるという効果があり、有機物を分解する作用があることが判明した。   Experiment 4 revealed that the coating film formed by the composition of the present invention has the effect of generating negative ions and erasing the coloring function of the organic dye, and has the effect of decomposing the organic matter.

実験5:本発明の組成物の形成する塗膜から発生するマイナスイオンの消臭作用の効果を調べるために、2個のテドラーバッグに所定濃度に調整したアンモニアガス3Lを注入し、そのうちの1個のテドラーバッグには、あらかじめ、実験3で調整した組成物35gを両面に塗布した画用紙(寸法:300×300×5 mm)を入れ、他の1個テドラーバッグには何も入れない状態(ブランク)とした。それぞれのテドラーバッグのアンモニア濃度を経過時間毎に検知管で測定して比較した。組成物の種類及び測定結果を表6に示す。   Experiment 5: In order to examine the effect of deodorizing the negative ions generated from the coating film formed by the composition of the present invention, 3 L of ammonia gas adjusted to a predetermined concentration was injected into two Tedlar bags, one of which Put the drawing paper (dimensions: 300 x 300 x 5 mm) coated on both sides with 35 g of the composition prepared in Experiment 3 in advance, and the other Tedlar bag (blank). did. The ammonia concentration of each Tedlar bag was measured with a detector tube for each elapsed time and compared. Table 6 shows the types of the compositions and the measurement results.

Figure 2006045419
Figure 2006045419

実験5により、本発明の組成物の形成する塗膜は消臭作用を備えていることが判明した。   Experiment 5 revealed that the coating film formed by the composition of the present invention has a deodorizing action.

実験6:本発明の組成物の形成塗膜から発生するマイナスイオンの抗菌作用の効果を調べるために、あらかじめ本発明の組成物(AM−7)をコーティングしておいたステンレス板(寸法:70×70×1.8mm)の個々に、それぞれ、大腸菌、緑膿菌、黄色ブドウ球菌及びメチシリン耐性黄色ブドウ球菌(MRSA)を滴下し、1時間放置した後に綿棒で液菌を回収し、滴下時及び回収時の菌数を顕微鏡法で比べ、減菌率を算出するという方法で評価をした。
減菌率の算出方法
減菌率(%)={(回収した菌液中の細菌数)÷(滴下時の菌液中の細菌数)}×100
実験の結果を表7に示す。但し、ブランクは組成物をコーティングしてないステンレス板を用いたときの減菌率である。
Experiment 6: In order to examine the effect of the antibacterial action of negative ions generated from the coating film of the composition of the present invention, a stainless steel plate (dimension: 70) previously coated with the composition of the present invention (AM-7) X70 x 1.8 mm), E. coli, Pseudomonas aeruginosa, Staphylococcus aureus, and methicillin-resistant Staphylococcus aureus (MRSA) were dropped, and after standing for 1 hour, liquid bacteria were collected with a cotton swab. The number of bacteria at the time of collection was compared by a microscopic method and evaluated by a method of calculating the sterilization rate.
Method of calculating the sterilization rate Bacterial sterilization rate (%) = {(Number of bacteria in the collected bacterial solution) ÷ (Number of bacteria in the bacterial solution at the time of dropping)} x 100
The results of the experiment are shown in Table 7. However, the blank is the sterilization rate when a stainless steel plate not coated with the composition is used.

Figure 2006045419
Figure 2006045419

実験6により、本発明の組成物の形成する塗膜は大腸菌、緑膿菌、黄色ブドウ球菌、MRSAに対して抗菌性を示すことが判明した。   Experiment 6 revealed that the coating film formed by the composition of the present invention exhibited antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and MRSA.

実験7:本発明の組成物をステンレス板(寸法:70×150×1.2 mm)に塗布し、室内で24時間放置して乾燥させた後、ガスバーナーの炎(温度:約800℃)に塗膜を60秒間曝し、発煙の有無、塗膜剥離の有無及び外観変化(燃焼痕跡の有無)について調べた結果を表8に示す。   Experiment 7: The composition of the present invention was applied to a stainless steel plate (dimensions: 70 × 150 × 1.2 mm), left to dry in a room for 24 hours, and then applied to a flame of a gas burner (temperature: about 800 ° C.). Table 8 shows the results of exposing the film for 60 seconds and examining the presence / absence of smoke generation, the presence / absence of peeling of the coating film, and the appearance change (presence / absence of combustion traces).

Figure 2006045419
Figure 2006045419

実験7により、本発明の組成物の形成膜は不燃性であることが判明した。   Experiment 7 revealed that the film formed of the composition of the present invention was nonflammable.

本発明の組成物は、例えば、室内のコンクリート、石材、木材等にコーティングを施し、悪臭の除去、タバコのヤニの分解、シックハウス症候群の原因となる揮発性有機物の分解及び、大腸菌、黄色ブドウ球菌、緑膿菌、メチシリン耐性黄色ブドウ球菌(MRSA)に対する抗菌、衛生維持、等に供することができ、また、金属にコーティングを施し、不燃性化粧膜を形成させ、上記作用をさせることができる。このように、本発明の組成物は従来おこなえなかった用途に広範囲に使用することができる。   The composition of the present invention is applied to, for example, indoor concrete, stone, wood, etc. to remove malodor, decompose tobacco, decompose volatile organic substances causing sick house syndrome, and E. coli, Staphylococcus aureus It can be used for antibacterial against Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus (MRSA), hygiene maintenance, etc., and can be coated with a metal to form a non-combustible cosmetic film and have the above action. Thus, the composition of the present invention can be used in a wide range of applications that could not be performed conventionally.

Claims (4)

(a)一般式MO・nSiO[但し、MはNa及びRN(Rは1価の有機酸)]で表されるシリカゾルをSiO換算で、1〜35重量部、(b)イオン発生物質を0.1〜30重量部、(c)無機充填材を0〜50重量部、(d)水を5〜80重量部[但し、(a)+(b)+(c)+(d)=100重量%]を含むことを特徴とするコーティング用組成物。 (A) A silica sol represented by the general formula M 2 O.nSiO 2 [wherein M is Na and R 4 N (R is a monovalent organic acid)] in terms of SiO 2 is 1 to 35 parts by weight, (b ) 0.1-30 parts by weight of ion generating substance, (c) 0-50 parts by weight of inorganic filler, (d) 5-80 parts by weight of water [provided that (a) + (b) + (c) + ( d) = 100% by weight]. 前記(b)イオン発生物質は、紫外線又は非可視光線によりマイナスイオン発生作用が励起される性質のチタン化合物、放射性元素を内蔵する鉱石類及び、上記二種類の物質を内蔵するセラミックの群から選ばれた少なくとも一種であって、平均粒子径又は平均長さが、100μm以下の非水溶性物質であることを特徴とする請求項1記載のコーティング用組成物。   The ion generating material (b) is selected from the group consisting of titanium compounds having a property of generating negative ion generation by ultraviolet rays or invisible light, ores containing radioactive elements, and ceramics containing the above two types of materials. 2. The coating composition according to claim 1, wherein the coating composition is a water-insoluble substance having an average particle diameter or an average length of 100 μm or less. 前記(c)無機充填材は、平均粒子径又は平均長さが0.1〜100μmで、かつ、非水溶性であって、無機の体質顔料、無機の機能性顔料及び金属の群から選ばれた、少なくとも1種であることを特徴とする請求項1記載のコーティング用組成物。   The (c) inorganic filler has an average particle diameter or average length of 0.1 to 100 μm and is water-insoluble, and is selected from the group of inorganic extender pigments, inorganic functional pigments and metals, 2. The coating composition according to claim 1, wherein the composition is at least one. 請求項1乃至請求項3のいずれかに記載のコーティング用組成物によって得られるマイナスイオン発生機能を備えた膜。   4. A film having a negative ion generation function obtained by the coating composition according to claim 1.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919425B2 (en) 2008-03-26 2011-04-05 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid for the same
US7977270B2 (en) 2007-03-26 2011-07-12 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid therefor
CN109762378A (en) * 2019-01-18 2019-05-17 杭州琻泰环境科技有限公司 Negative ion paint and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7977270B2 (en) 2007-03-26 2011-07-12 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid therefor
US8207079B2 (en) 2007-03-26 2012-06-26 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid therefor
US8216959B2 (en) 2007-03-26 2012-07-10 Toto Ltd. Photocatalyst-coated body, coating composition for the same, and process for producing photocatalyst-coated body
US8372774B2 (en) 2007-03-26 2013-02-12 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid therefor
US7919425B2 (en) 2008-03-26 2011-04-05 Toto Ltd. Photocatalyst-coated body and photocatalytic coating liquid for the same
CN109762378A (en) * 2019-01-18 2019-05-17 杭州琻泰环境科技有限公司 Negative ion paint and preparation method thereof

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