JP2002167871A - Comparatively antifouling sealing compound for building and building material - Google Patents
Comparatively antifouling sealing compound for building and building materialInfo
- Publication number
- JP2002167871A JP2002167871A JP2000368560A JP2000368560A JP2002167871A JP 2002167871 A JP2002167871 A JP 2002167871A JP 2000368560 A JP2000368560 A JP 2000368560A JP 2000368560 A JP2000368560 A JP 2000368560A JP 2002167871 A JP2002167871 A JP 2002167871A
- Authority
- JP
- Japan
- Prior art keywords
- building
- film
- photocatalytic
- sealing compound
- photocatalyst
- 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
- 239000004566 building material Substances 0.000 title claims abstract description 38
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 15
- 150000001875 compounds Chemical class 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 title abstract 5
- 230000001699 photocatalysis Effects 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 44
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 14
- 239000000565 sealant Substances 0.000 claims abstract description 13
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 10
- 239000003566 sealing material Substances 0.000 claims description 27
- 229920002545 silicone oil Polymers 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 63
- 239000011941 photocatalyst Substances 0.000 description 32
- 239000010419 fine particle Substances 0.000 description 26
- 230000000844 anti-bacterial effect Effects 0.000 description 21
- 239000003921 oil Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 11
- 150000002736 metal compounds Chemical class 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 10
- 239000003925 fat Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 8
- 239000005871 repellent Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- -1 curtain walls Substances 0.000 description 7
- 230000002940 repellent Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004590 silicone sealant Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 239000007800 oxidant agent Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000012812 sealant material Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 101710134784 Agnoprotein Proteins 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 1
- 241000272194 Ciconiiformes Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000178435 Eliokarmos dubius Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 1
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Building Environments (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、低汚染性の建築用
シール材（予め成形された所定形状の固体のシール材及
び液状のシール材のいずれも含む。）及び建築材料に関
し、さらに詳しくは、防汚作用、特に光触媒作用を利用
した建築物外装等の汚れの低減技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-contamination architectural sealing material (including both a solid sealing material and a liquid sealing material having a predetermined shape and a preformed shape) and a building material. The present invention relates to a technology for reducing stains on building exteriors and the like using an antifouling action, particularly a photocatalytic action.
【０００２】[0002]
【従来の技術】カーテンウォール等の外装建材の場合、
ガラス、金属、石材等のパネル材を枠材に固定し、水密
性、気密性を持たせる為のシール材として、耐候性に優
れ、適度な弾力を有するシリコーン系のシール材（シリ
コーンシーラント）が広範に使用されている。しかし、
シリコーンシーラントを用いた場合、時間の経過と共に
その内部に含有されたシリコーン系のオイルが表面に徐
々に滲み出し、さらには、風雨等によって飛散してパネ
ル材や枠材の表面（室外側表面）に拡散、付着する。シ
リコーンオイルは疎水性であり、種々の汚れが付着し易
い。そのため、排気ガス、煤煙、塵埃などの汚れを建材
表面に固着させるバインダーとして作用する。従って、
シリコーンシーラントを用いた建築物外装は非常に汚れ
易く、建築物外装の黒ずみ汚れの原因となり、建築物の
美観を低下させる大きな問題となっていた。さらに、こ
の汚れは通常の界面活性剤を用いた洗浄剤によるビル清
掃等で除去することができず、クリーニング方法が課題
とされていた。2. Description of the Related Art In the case of exterior building materials such as curtain walls,
Silicone sealant (silicone sealant) with excellent weather resistance and moderate elasticity is used as a sealant to fix glass, metal, stone, etc. panel materials to the frame material and to provide watertightness and airtightness. Widely used. But,
When a silicone sealant is used, the silicone-based oil contained therein gradually oozes out over time with the passage of time, and further scatters due to the weather and the like, and the surface of the panel material or frame material (outdoor surface) Diffuses and adheres to Silicone oil is hydrophobic and easily adheres to various stains. Therefore, it acts as a binder for fixing dirt such as exhaust gas, soot and dust on the surface of the building material. Therefore,
Building exteriors using silicone sealants are very dirty and cause darkening of building exteriors, which has been a major problem of degrading the aesthetics of buildings. Further, this stain cannot be removed by cleaning the building with a detergent using a normal surfactant, and a cleaning method has been a problem.
【０００３】上記のような課題に対して、本発明者ら
は、外装建材に、シール材に接する部位を除き、その近
傍表面に光触媒膜をコーティングすることによって、シ
リコーンオイルに起因する汚れを低減できることを見出
し、既に特許出願している（特開平８−３０２８５６
号）。また、基材に対する水の接触角を低下させ、親水
性を呈するようにすると、汚れも低減するいう現象も見
出され、この作用を利用した防汚建材が開発されている
（例えば、特開平９−２２８６０２号）。[0003] In order to solve the above-mentioned problems, the present inventors have reduced the contamination caused by silicone oil by coating a photocatalytic film on the exterior building material except for the portion in contact with the sealing material, and in the vicinity thereof. We have found that we can do this and have already filed a patent application (Japanese Patent Application Laid-Open No. 8-302856).
issue). In addition, when the contact angle of water with respect to the base material is reduced so as to exhibit hydrophilicity, a phenomenon that dirt is reduced has also been found, and an antifouling building material utilizing this effect has been developed (for example, Japanese Unexamined Patent Application Publication No. No. 9-228602).
【０００４】[0004]
【発明が解決しようとする課題】前記したように、光触
媒を外装建材に応用すると、シリコーンオイルに起因す
る汚れの防止及びセルフクリーニング化にかなりの効果
がある。しかし、外装建材のシール材直下部等、シリコ
ーンオイルが大量に滞留する部位では、汚染速度が光触
媒作用による分解除去速度や親水性による洗浄速度を上
回り、汚れの除去効果が低下してしまう。また、一旦シ
リコーンオイルが付着すると、このシリコーンオイル自
身が光触媒作用によって変質してしまい、光触媒膜表面
から容易に除去できないことが判明した。As described above, when a photocatalyst is applied to an exterior building material, there is a considerable effect on prevention of dirt caused by silicone oil and self-cleaning. However, in a portion where a large amount of silicone oil stays, such as immediately below the sealing material of the exterior building material, the contamination rate exceeds the decomposition removal rate due to the photocatalytic action and the cleaning rate due to hydrophilicity, and the dirt removal effect is reduced. Further, it was found that once the silicone oil adhered, the silicone oil itself deteriorated due to the photocatalytic action and could not be easily removed from the surface of the photocatalytic film.
【０００５】上記の点について説明すると、シリコーン
オイルは珪素−酸素結合を骨格としており、また珪素に
メチル基等のアルキル基が結合している。一方、酸化チ
タン等の光触媒は、紫外線照射下で空気中の水分や酸素
を活性種に変化させ、この活性種がシリコーンオイルの
アルキル基を酸化・分解し、珪素−酸素結合を生じさせ
ていく。従来の光触媒膜の組成は、例えば特許第２７５
６４７４号公報に示されているように、光触媒膜の親水
性を向上させるために、あるいは暗時での水接触角の増
大を防止するために、無機系酸化物、特にシリカ系酸化
物やシリコーン樹脂が配合されている。このような物質
と前記珪素−酸素結合を生じて高分子化したシリコーン
オイルは、同様の化学結合を有しているため化学的親和
性に優れており、一旦シリコーンオイルが変質して光触
媒膜上に付着すると、その除去が非常に困難となる。[0005] Explaining the above points, silicone oil has a silicon-oxygen bond as a skeleton, and an alkyl group such as a methyl group is bonded to silicon. On the other hand, a photocatalyst such as titanium oxide changes moisture or oxygen in the air into active species under ultraviolet irradiation, and this active species oxidizes and decomposes the alkyl group of the silicone oil to generate a silicon-oxygen bond. . The composition of a conventional photocatalytic film is described in, for example, Japanese Patent No. 275.
As disclosed in Japanese Patent No. 6474, inorganic oxides, particularly silica-based oxides and silicones, are used to improve the hydrophilicity of the photocatalytic film or to prevent an increase in the water contact angle in the dark. Resin is blended. Such a substance and the silicone oil which has been polymerized by generating the silicon-oxygen bond have excellent chemical affinity because of having the same chemical bond. If it adheres, it will be very difficult to remove it.
【０００６】さらに、光触媒作用によるシリコーンオイ
ルのアルキル基の分解が不充分であった場合、このシリ
コーンオイル変質物は、残存アルキル基によって撥水性
を示す。このような物質が光触媒膜表面に固着すると、
光触媒膜の親水化を阻害するため、水による易洗浄性を
大きく低下させる。易洗浄性が低下した光触媒膜表面に
は各種汚れが堆積してしまい、光触媒膜表面を覆い、こ
の光触媒膜への光の入射量を著しく低減させてしまう。
従って、光触媒膜の有する有機物酸化分解効果が低下
し、シリコーンオイル変質物の残存アルキル基の分解が
行なえなくなってしまう。また、光触媒膜の親水化現象
をも阻害してしまう。Further, when the decomposition of the alkyl group of the silicone oil by the photocatalytic action is insufficient, the modified silicone oil exhibits water repellency due to the remaining alkyl group. When such a substance adheres to the photocatalytic film surface,
In order to inhibit the photocatalytic film from becoming hydrophilic, the ease of washing with water is greatly reduced. Various stains accumulate on the surface of the photocatalyst film with reduced easy-cleaning properties, cover the surface of the photocatalyst film, and significantly reduce the amount of light incident on the photocatalyst film.
Therefore, the effect of oxidative decomposition of organic substances possessed by the photocatalyst film is reduced, and it becomes impossible to decompose the residual alkyl groups of the modified silicone oil. In addition, it also inhibits the photocatalytic film from becoming hydrophilic.
【０００７】前記のような理由により、シリコーンオイ
ルが光触媒膜表面に多量に付着すると、光触媒膜の有す
る有機物分解効果及び親水化効果を阻害し、その除去自
体が困難になるばかりでなく、このシリコーンオイル変
質物によって堆積した汚れを水によって除去することが
非常に困難となる。従って、本発明の目的は、前記した
ようなシリコーンオイル付着に起因する汚れの発生を防
止でき、また、光触媒膜や親水性膜による防汚効果、セ
ルフクリーニング効果を低下させることのない建築用シ
ール材と建築材料及びそれらの組合せ技術を提供するこ
とにあり、さらに、このような建築用シール材や建築材
料を用いることによって長期間に亘ってきれいな美観を
維持できる建築物外装を提供することにある。For the reasons described above, if a large amount of silicone oil adheres to the surface of the photocatalyst film, the effect of decomposing organic substances and the effect of hydrophilization of the photocatalyst film is hindered, and not only is the removal itself difficult, but also this silicone oil becomes difficult. It is very difficult to remove dirt deposited by oil alteration with water. Accordingly, an object of the present invention is to prevent the generation of dirt due to the adhesion of silicone oil as described above, and also to prevent the dirt and the self-cleaning effect of the photocatalytic film and the hydrophilic film from being reduced. It is an object of the present invention to provide materials and building materials and a combination technology thereof, and to provide a building exterior that can maintain a beautiful appearance for a long time by using such building sealing materials and building materials. is there.
【０００８】[0008]
【課題を解決するための手段】前記目的を達成するため
に、本発明によれば、建築材料と組み合わせて用いられ
るシール材であって、変成シリコーン系又はポリイソブ
チレン系のシーラント材からなることを特徴とする建築
用シール材が提供される。さらに本発明によれば、変成
シリコーン系又はポリイソブチレン系のシーラント材か
らなるシール材と組み合わせて用いられる建築材料であ
って、建築材料の表面に防汚作用を有する材料層、特に
光触媒作用を有する材料層が設けられていることを特徴
とする建築材料が提供される。According to the present invention, there is provided a sealing material used in combination with a building material, comprising a modified silicone-based or polyisobutylene-based sealing material. A characteristic architectural seal is provided. Furthermore, according to the present invention, a building material used in combination with a sealing material made of a modified silicone-based or polyisobutylene-based sealant material, the material layer having an antifouling action on the surface of the building material, particularly having a photocatalytic action A building material provided with a material layer is provided.
【０００９】[0009]
【発明の実施の形態】前記した課題を解決するために、
本発明は、建築材料と組み合わせて用いられるシール材
として、シリコーンオイルが滲み出すことのない変成シ
リコーン系又はポリイソブチレン系のシーラント材から
なるシール材を用いるものである。このようなシーラン
ト材からなる建築用シール材を用い、光触媒膜や親水性
膜による防汚処理を施したガラス、アルミパネル、アル
ミ押出形材、タイル等の建築材料の施工・取付を行なう
ことにより、シリコーンオイル付着に起因する汚れの発
生がないため、光触媒膜や親水性膜による防汚効果、セ
ルフクリーニング効果を長期に亘って安定して発揮する
ことができ、建築物外装の美観を長期に亘って維持する
ことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the above-mentioned problems,
The present invention uses, as a sealant used in combination with a building material, a sealant made of a modified silicone-based or polyisobutylene-based sealant from which silicone oil does not exude. Using building seal materials made of such sealants, construction and installation of building materials such as glass, aluminum panels, aluminum extruded shapes, and tiles that have been subjected to antifouling treatment with a photocatalytic film or a hydrophilic film Since there is no generation of dirt due to silicone oil adhesion, the antifouling effect and self-cleaning effect of the photocatalytic film and hydrophilic film can be exhibited stably over a long period of time, and the aesthetic appearance of the building exterior can be extended over a long period of time. Can be maintained over time.
【００１０】上記シール材と組み合わせて用いる建築材
料としては、表面に親水性膜や光触媒膜等の防汚作用を
有する材料層、特に光触媒作用を有する材料層を設けた
ものが用いられる。親水性膜としては、無機系酸化物、
特にシリカ系酸化物を含有する膜が好適に用いられ、表
面を親水性にすることによって汚れが付着し難くなり、
また雨水や洗浄水等によってクリーニングし易くなる
が、特に光触媒作用によって積極的に汚れを分解する光
触媒膜を設けた建築材料を用いることが好ましい。光触
媒微粒子は光照射下で生じる活性酸素種により抗菌・防
黴効果を発揮することが知られており、外装建材の汚れ
を低減できるのみならず、菌や黴の発生をも防止するこ
とが可能となる。As a building material used in combination with the above-mentioned sealing material, a material provided with a material layer having an antifouling action such as a hydrophilic film or a photocatalytic film on the surface, particularly a material layer having a photocatalytic action is used. As the hydrophilic film, inorganic oxides,
In particular, a film containing a silica-based oxide is preferably used, and by making the surface hydrophilic, it becomes difficult to adhere dirt,
In addition, it is easy to clean with rainwater or washing water, but it is particularly preferable to use a building material provided with a photocatalytic film that positively decomposes dirt by a photocatalytic action. Photocatalytic fine particles are known to exhibit antibacterial and antifungal effects by active oxygen species generated under light irradiation, and can not only reduce stains on exterior building materials, but also prevent the generation of bacteria and mold. Becomes
【００１１】外装建材の上に形成される前記光触媒膜と
しては、従来公知の種々の光触媒膜とすることができ、
また、光触媒作用を示す半導体そのものからなる薄膜
や、光触媒微粒子のみから形成される薄膜、抗菌性金属
又は抗菌性金属化合物の微粒子を担持する光触媒微粒子
から形成される薄膜、さらには、光触媒微粒子あるいは
さらに必要に応じて抗菌性金属又は抗菌性金属化合物の
微粒子を適当な無機系、有機系のバインダーや塗料中に
添加、分散した混合物から形成した膜など、種々の態様
を含む。また、光触媒膜の構造は、連続薄膜、不連続薄
膜、島状分散薄膜等のいずれの構造であってもよく、さ
らに単一層に限られるものではなく、多層構成としても
よい。さらに、半導体微粒子もしくは半導体微粒子を含
む材料からなる光触媒膜と、膜中又は／及び膜表面に酸
化剤又は／及び撥油剤あるいはさらに光触媒作用促進剤
を添加又は／及び担持させた光触媒膜との二層構造とす
ることもできる。As the photocatalyst film formed on the exterior building material, various conventionally known photocatalyst films can be used.
Further, a thin film composed of a semiconductor itself exhibiting a photocatalytic action, a thin film formed only of photocatalyst fine particles, a thin film formed of photocatalytic fine particles carrying fine particles of an antibacterial metal or an antibacterial metal compound, Various forms such as a film formed from a mixture in which fine particles of an antibacterial metal or an antibacterial metal compound are added and dispersed in a suitable inorganic or organic binder or paint as needed, are included. Further, the structure of the photocatalytic film may be any structure such as a continuous thin film, a discontinuous thin film, and an island-shaped dispersed thin film, and is not limited to a single layer, but may be a multilayer structure. Furthermore, a photocatalytic film made of semiconductor fine particles or a material containing semiconductor fine particles, and a photocatalytic film in which an oxidizing agent or / and an oil repellent or a photocatalytic accelerator is further added or / and supported in the film or / and on the film surface. It may have a layered structure.
【００１２】光触媒作用を有する半導体としては、電子
−正孔移動度が比較的大きく、光触媒作用を有する半導
体であればいずれも使用可能であり、例えばＴｉＯ2、
ＳｒＴｉＯ3、ＺｎＯ、ＣｄＳ、ＳｎＯ2等が挙げられる
が、これらの中でも特にＴｉＯ2が好ましい。また、こ
のような光触媒作用を有する半導体と共に銀、銅、亜鉛
等の抗菌性金属又は抗菌性金属化合物を共存させれば、
例えば抗菌性金属又は抗菌性金属化合物を表面に析出さ
せた半導体微粒子を用いたり、光触媒膜中に半導体微粒
子と共に分散させたり、あるいは光触媒膜表面に付着さ
せたりすれば、光が照射されない夜間であっても抗菌・
防黴性が維持されるようになる。As the semiconductor having a photocatalytic action, any semiconductor having a relatively high electron-hole mobility and having a photocatalytic action can be used. For example, TiO 2 ,
SrTiO 3 , ZnO, CdS, SnO 2 and the like can be mentioned, and among them, TiO 2 is particularly preferable. In addition, if an antibacterial metal or an antibacterial metal compound such as silver, copper, and zinc coexist with a semiconductor having such a photocatalytic action,
For example, if semiconductor particles having an antibacterial metal or an antibacterial metal compound deposited on the surface are used, dispersed in the photocatalyst film together with the semiconductor particles, or attached to the surface of the photocatalyst film, the light is not irradiated at night. Even antibacterial
Mold resistance is maintained.
【００１３】光触媒作用を有する半導体、抗菌性金属又
は抗菌性金属化合物の形態としては、個々の微粒子の形
態、光触媒微粒子の表面に抗菌性金属又は抗菌性金属化
合物が部分的に（又は一部の粒子は全体的でも構わな
い）付着している形態、光触媒微粒子の表面にシリカ等
の無機質バインダー微粒子が部分的に付着している形
態、光触媒微粒子の表面に無機質バインダー微粒子と抗
菌性金属又は抗菌性金属化合物が部分的に付着している
形態、抗菌性金属又は抗菌性金属化合物が付着している
無機質バインダー微粒子が光触媒微粒子の表面に付着し
ている形態など、種々の形態を採用できる。The semiconductor, antibacterial metal or antibacterial metal compound having a photocatalytic action may be in the form of individual fine particles, the anticatalytic metal or antibacterial metal compound partially (or partially) on the surface of the photocatalytic fine particles. Particles may be whole) Adhered form, Inorganic binder fine particles such as silica partially adhered to the surface of photocatalytic fine particles, Inorganic binder fine particles and antibacterial metal or antibacterial property on the surface of photocatalytic fine particles Various forms can be adopted, such as a form in which a metal compound is partially adhered, a form in which antibacterial metal or inorganic binder fine particles to which an antibacterial metal compound is adhered are adhered to the surface of photocatalytic fine particles.
【００１４】使用する光触媒微粒子の粒径は、約０．０
０５μｍ以上、約１μｍ以下、好ましくは約０．０１〜
０．３μｍが適当である。粒径が０．００５μｍよりも
小さくなると、量子サイズ効果によりバンドギャップが
大きくなり、高圧水銀灯等の短波長光を発生する照明下
でないと光触媒作用が得られないといった問題がある。
また、粒径があまりに小さ過ぎると、取り扱いが困難で
あったり、バインダー中への分散性が悪くなるという問
題も生じてくる。取り扱い性の点からは０．０１μｍ以
上の粒径が好ましい。一方、粒径が１μｍを超えると、
膜表面に比較的大きな光触媒微粒子が存在することにな
るため、表面の滑らかさが乏しくなり、また膜表面に露
出した粒子が脱落し易くもなる。表面の平滑さ等を考慮
すると０．３μｍ以下の粒径が好ましい。The particle size of the photocatalyst fine particles used is about 0.0
05 μm or more, about 1 μm or less, preferably about 0.01 to
0.3 μm is appropriate. If the particle size is smaller than 0.005 μm, the band gap becomes large due to the quantum size effect, and there is a problem that a photocatalytic action cannot be obtained unless under illumination that generates short-wavelength light such as a high-pressure mercury lamp.
If the particle size is too small, problems arise such as difficulty in handling and poor dispersibility in the binder. From the viewpoint of handleability, a particle size of 0.01 μm or more is preferred. On the other hand, when the particle size exceeds 1 μm,
Since relatively large photocatalyst fine particles are present on the film surface, the smoothness of the surface is poor, and particles exposed on the film surface are also likely to fall off. In consideration of the smoothness of the surface and the like, the particle size is preferably 0.3 μm or less.
【００１５】光触媒作用を有する半導体のコーティング
方法としては、ディップ法、スパッタ法、溶射法、スプ
レー法など種々の方法を用いることができるが、適当な
塗料中に光触媒微粒子又はその前駆体、あるいは必要に
応じて抗菌性金属又は抗菌性金属化合物の微粒子を分散
させ、これを基材にスプレー塗布、乾燥することによっ
てコーティングし、加熱硬化する方法が好ましい。基材
やその表面の被膜が高温に耐えられる場合には、上記の
種々のコーティング方法で光触媒膜の形成が可能である
が、耐熱性が劣る樹脂材料からなる場合は、高温に加熱
することが難しくなる。その場合には、適当な塗料中に
光触媒微粒子を分散させ、これを基材にスプレー塗布、
乾燥することによってコーティングする方法を採用すれ
ばよい。また、光触媒微粒子を分散させた塗料の基材
（無機系バインダー）が後述するような中間層の塗料の
被膜形成成分と同一の場合、中間層と光触媒層の密着性
がより一層向上する効果が得られる。Various methods such as a dipping method, a sputtering method, a thermal spraying method and a spraying method can be used as a method for coating a semiconductor having a photocatalytic action. It is preferable to disperse fine particles of an antibacterial metal or an antibacterial metal compound in accordance with the above method, apply the resulting dispersion to a substrate by spraying, dry, coat, and heat and cure. If the substrate or its surface coating can withstand high temperatures, it is possible to form a photocatalytic film by the various coating methods described above, but if it is made of a resin material with poor heat resistance, it can be heated to high temperatures. It becomes difficult. In that case, disperse the photocatalyst fine particles in an appropriate paint, spray-coat this on the substrate,
What is necessary is just to employ | adopt the method of coating by drying. Further, when the base material (inorganic binder) of the coating material in which the photocatalyst fine particles are dispersed is the same as the film forming component of the coating material of the intermediate layer as described later, the effect of further improving the adhesion between the intermediate layer and the photocatalytic layer is obtained. can get.
【００１６】塗料中に光触媒微粒子を分散させ、これを
スプレー塗布するコーティング方法の場合、混合する光
触媒微粒子の割合は、光触媒膜全体の体積に対し、０．
５〜５０％（ここで５０％は、光触媒微粒子の体積と塗
料基材の体積が等しいことに相当する。）の範囲にある
ことが好ましい。光触媒微粒子の割合が０．５％より少
なくなると、光触媒作用を発揮する光触媒微粒子の量が
不足し、ひいては充分な光触媒作用が得られなくなる。In the case of a coating method in which photocatalyst fine particles are dispersed in a paint and sprayed, the ratio of the photocatalyst fine particles to be mixed is 0.1% with respect to the total volume of the photocatalytic film.
Preferably, it is in the range of 5 to 50% (here, 50% corresponds to the volume of the photocatalyst fine particles being equal to the volume of the coating substrate). When the ratio of the photocatalyst fine particles is less than 0.5%, the amount of the photocatalyst fine particles that exerts the photocatalytic action becomes insufficient, so that a sufficient photocatalytic action cannot be obtained.
【００１７】光触媒膜の膜厚は、０．０１〜１０μｍが
適当である。膜厚が厚いと光触媒活性を長期間に亘って
高く維持でき、また光干渉による着色も減少するなどの
利点があるが、１０μｍを超える膜厚になると、光触媒
膜が剥離し易くなり、また生産性やコストの面からも好
ましくない。特に、光触媒膜をコーティングした後、組
立時や施工時に剥離が起き易くなる。なお、この程度の
膜厚であれば、光触媒膜に白化等の問題を生ずることな
く充分に高い透明性を保持できる。The thickness of the photocatalytic film is suitably from 0.01 to 10 μm. When the film thickness is large, the photocatalytic activity can be maintained high for a long period of time, and there is an advantage that coloring due to light interference is reduced. However, when the film thickness is more than 10 μm, the photocatalytic film is easily peeled off, and the production is increased. It is not preferable from the viewpoint of performance and cost. In particular, after coating the photocatalytic film, peeling is likely to occur during assembly or construction. With this thickness, sufficiently high transparency can be maintained without causing a problem such as whitening in the photocatalytic film.
【００１８】また、各種有機材料や有機被膜を形成した
材料上に光触媒膜を形成する場合、光触媒作用によって
有機基材（有機被膜）が侵されないように、有機基材
（有機被膜）と光触媒膜との間に、光触媒作用により侵
されない材料からなる膜厚約３．２μｍ以上、数十μｍ
程度以下、好ましくは約１０μｍ以下の中間層を介在さ
せることが好ましい。光触媒作用により侵されない中間
層としては、シリカ、アルミナ、酸化インジウム、酸化
ジルコニウム、ＳｉＯ2＋ＭＯx（ＭＯxはＰ2Ｏ5、Ｂ2Ｏ
3、ＺｒＯ2、Ｔａ2Ｏ5等の少なくとも１種の金属酸化
物）、あるいは窒化物、酸窒化物、硫化物、炭化物、カ
ーボン等のセラミックス、金属などの各種無機材料の薄
膜を好適に用いることができる。また、光触媒作用によ
って侵されない、もしくは非常に侵され難いシリコーン
樹脂、ポリテトラフルオロエチレン等の有機材料の薄膜
も用いることができる。なお、これらの材料は光触媒微
粒子の分散塗料の基剤（バインダー）としても使用でき
る。When a photocatalytic film is formed on various organic materials or a material on which an organic film is formed, an organic substrate (organic film) and a photocatalytic film are formed so that the organic substrate (organic film) is not affected by the photocatalytic action. Between about 3.2 μm and several tens of μm made of a material which is not attacked by photocatalysis.
It is preferable to interpose an intermediate layer having a thickness of about 10 μm or less, preferably about 10 μm or less. Silica, alumina, indium oxide, zirconium oxide, SiO 2 + MO x (MO x is P 2 O 5 , B 2 O)
3 , at least one metal oxide such as ZrO 2 or Ta 2 O 5 ), or a thin film of various inorganic materials such as ceramics such as nitrides, oxynitrides, sulfides, carbides, and carbon, and metals. be able to. In addition, a thin film of an organic material such as a silicone resin or polytetrafluoroethylene which is not or very hardly affected by photocatalysis can be used. In addition, these materials can also be used as a base (binder) of a dispersion paint of photocatalyst fine particles.
【００１９】さらに、光触媒膜中又は／及び光触媒膜表
面に酸化剤又は／及び撥油剤を添加又は／及び担持させ
ることによって、光触媒作用による有機物酸化分解と酸
化剤による有機物酸化分解の相乗効果で有機物酸化分解
能力を著しく向上させることができ、あるいは光触媒膜
と油脂分との化学的親和性を低下させる、すなわち撥油
性を高めることができる。このような酸化剤としては、
例えば、Ｎａ2ＣｒＯ4等のクロム酸塩及びクロム酸関連
化合物、ＫＭｎＯ4等の過マンガン酸塩、ＡｇＮＯ3等の
硝酸塩及び硝酸関連化合物、ＣｕＳＯ4等の硫酸塩、Ｆ
ｅＣｌ3等の金属塩化物類、ＣｕＯ、Ａｇ2Ｏ等の酸化物
などが挙げられる。Further, by adding or / and supporting an oxidizing agent and / or an oil repellent in the photocatalyst film and / or on the surface of the photocatalytic film, the organic substance is oxidized and decomposed by the photocatalytic action and the organic substance is oxidized and decomposed by the oxidizing agent. The oxidative decomposition ability can be significantly improved, or the chemical affinity between the photocatalyst film and the fat or oil can be reduced, that is, the oil repellency can be increased. Such oxidizing agents include:
For example, chromates and chromate-related compounds such as Na 2 CrO 4 , permanganates such as KMnO 4 , nitrate and nitrate-related compounds such as AgNO 3 , sulfates such as CuSO 4 , F
Examples include metal chlorides such as eCl 3 and oxides such as CuO and Ag 2 O.
【００２０】また、上記酸化剤の他に、光触媒膜中又は
／及び光触媒膜表面に、光触媒作用促進剤としてＡｕ、
Ａｇ、Ｐｔ、Ｐｄ、Ｃｕ等の金属や金属イオン、これら
の金属の塩化物、硫化物、硝酸化合物等の金属化合物の
少なくとも１種を添加又は／及び担持させることによっ
て、光触媒作用がさらに向上し、汚染をさらに低減する
ことができる。なお、これらの金属や金属化合物の大部
分は、前述した抗菌性金属もしくは抗菌性金属化合物と
しても作用する。In addition to the oxidizing agent, Au, as a photocatalytic accelerator,
By adding and / or supporting at least one of metals and metal ions such as Ag, Pt, Pd, and Cu, and chlorides, sulfides, and nitrates of these metals, the photocatalytic action is further improved. , Contamination can be further reduced. Most of these metals and metal compounds also act as the aforementioned antibacterial metal or antibacterial metal compound.
【００２１】また、通常の光触媒膜は、光照射下で水の
接触角が小さくなるという親水化と同時に、各種油脂成
分の接触角も低下するという親油化現象を起こすことが
知られている。すなわち、光照射下の光触媒膜表面は、
水のみならず各種油脂成分に対する化学的親和性に優れ
ているため、油脂分が付着した場合、この油脂分と光触
媒膜の界面に水が入り込んで油脂分を浮かび上がらせる
ことが困難となっている。しかし、光触媒膜中又は／及
び光触媒膜表面に撥油剤を添加又は／及び担持させて光
触媒膜を撥油化し、光触媒膜表面と油脂分の化学的親和
性を小さくすれば、油脂分と光触媒膜の界面に水が入り
込んで油脂分を浮かび上がらせ易くなり、この浮かび上
がった油脂分は水で容易に洗い流すことが可能になる。
このような撥油剤としては、フッ素化合物、シリコン化
合物等の撥油性を示す化合物が挙げられ、光触媒膜中に
これらの撥油剤を添加したり、光触媒膜表面に塗布する
など、種々の態様で実施できる。It is also known that ordinary photocatalytic films cause a lipophilic phenomenon in which the contact angles of various fats and oils components are reduced at the same time as the hydrophilicity, in which the contact angle of water is reduced under light irradiation. . That is, the surface of the photocatalytic film under light irradiation is
Because it has excellent chemical affinity not only for water but also for various fats and oils components, it is difficult for water to enter the interface between the fats and the photocatalyst film and lift the fats and oils when the fats and oils adhere. . However, if the photocatalyst film is made oil-repellent by adding or / and supporting an oil repellent in or / and on the photocatalyst film and the chemical affinity of the photocatalyst film surface with the oil / fat is reduced, Water enters the interface of the oil and makes it easy to lift up the oil and fat, and the oil and fat that has come up can be easily washed away with water.
Examples of such an oil repellent include compounds exhibiting oil repellency such as a fluorine compound and a silicon compound. These oil repellents are used in various modes such as adding these oil repellents to a photocatalyst film or applying the oil repellent to the photocatalyst film surface. it can.
【００２２】本発明のシール材は様々な用途に適用可能
であるが、低汚染性であるため、建築用外装材、例えば
枠材、パネル材、シール材からなる外装建材ユニット
（例えばカーテンウォール）の他、サイディング材、屋
根材などの目地にシール材を用いる外装建材、タイル材
などの目地にシール材を用いる内装あるいは外装建材、
建材と壁材との接合部にシール材を用いる外装建材など
に特に有利に適用できる。Although the sealing material of the present invention can be applied to various uses, since it has low pollution, an exterior building material unit such as a frame material, a panel material, and a sealing material (for example, a curtain wall) is used for building exterior materials. In addition, siding materials, exterior building materials using sealing materials for joints such as roofing materials, interior or exterior building materials using sealing materials for joints such as tile materials,
The present invention can be particularly advantageously applied to an exterior building material using a sealing material at a joint between a building material and a wall material.
【００２３】[0023]
【実施例】以下、実施例、比較例及び試験例を示して本
発明の効果についてさらに具体的に説明するが、本発明
が下記実施例に限定されるものでないことはもとよりで
ある。なお、以下の実施例及び比較例で用いたパネル材
は、図１に示す形状及びサイズのパネル材（アルミ曲げ
加工材）１に、フッ素塗装（日本ペイント（株）製デュ
フロンＫ５００、色：白色）を施し、その後、日本曹達
（株）製シリコーン系コーティング剤「ビストレーター
Ｌ、ＮＳＣ−２００Ａ」をスプレーで塗布し、９０℃で
３０分間加熱して硬化させて中間層を形成し、さらにこ
の上に、日本曹達（株）製光触媒膜コーティング剤「ビ
ストレーターＬ、ＮＳＣ−２００Ｃ」をスプレーで塗布
し、１２０℃で３０分間加熱して硬化させて作製したも
のである。EXAMPLES Hereinafter, the effects of the present invention will be described more specifically with reference to examples, comparative examples, and test examples. However, it goes without saying that the present invention is not limited to the following examples. The panel material used in the following examples and comparative examples is a panel material (aluminum bent material) 1 having the shape and size shown in FIG. 1 and a fluorine coating (Nippon Paint Co., Ltd. Duflon K500, color: white) ) Is applied, and then a silicone-based coating agent “Vistor L, NSC-200A” manufactured by Nippon Soda Co., Ltd. is applied by spraying, and heated and cured at 90 ° C. for 30 minutes to form an intermediate layer. The photocatalyst film coating agent “Vistor L, NSC-200C” manufactured by Nippon Soda Co., Ltd. was applied on the upper surface by spraying, and was cured by heating at 120 ° C. for 30 minutes.
【００２４】実施例１ 前記パネル材１の目地部２に、図２に示すように、シー
ル材３として、横浜ゴム（株）製変成シリコーン系シー
ラント材「ハマタイトスーパーII」を施工した。Example 1 A modified silicone-based sealant “Hama-Tite Super II” manufactured by Yokohama Rubber Co., Ltd. was applied to a joint 2 of the panel material 1 as a sealing material 3 as shown in FIG.
【００２５】実施例２ 前記パネル材１の目地部２に、図２に示すように、シー
ル材３として、サンスター技研（株）製ポリイソブチレ
ン系シーラント材「ペンギンシール７０００」を施工し
た。Example 2 As shown in FIG. 2, a polyisobutylene-based sealant “Penguin Seal 7000” manufactured by Sunstar Giken Co., Ltd. was applied to the joint portion 2 of the panel material 1 as shown in FIG.
【００２６】比較例１ 前記パネル材１の目地部２に、図２に示すように、シー
ル材３として、信越化学（株）製シリコーン系シーラン
ト材「シーラント７０」を施工した。COMPARATIVE EXAMPLE 1 As shown in FIG. 2, a silicone-based sealant “Sealant 70” manufactured by Shin-Etsu Chemical Co., Ltd. was applied to the joint 2 of the panel material 1 as shown in FIG.
【００２７】試験例 前記実施例１、２及び比較例１において作製した各パネ
ル材を屋外に暴露し、パネル材下半部の中心部とシール
材直下部の色差ΔＥの経時変化を測定し、汚染状況を判
定した。ここで、ΔＥは、暴露前の色相と暴露後の色相
の差異を示し、この数字が大きいほど汚染状況が顕著で
あったことを示す。その結果を図３に示す。Test Example Each of the panel materials produced in Examples 1 and 2 and Comparative Example 1 was exposed outdoors, and the temporal change of the color difference ΔE between the center of the lower half of the panel material and immediately below the sealing material was measured. The contamination status was determined. Here, ΔE indicates the difference between the hue before the exposure and the hue after the exposure, and the larger this number is, the more contaminated the situation is. The result is shown in FIG.
【００２８】図３に示す結果から明らかなように、実施
例１及び２ではパネル材下半部の中心部及びシール材直
下部共に色差２程度の変化であり、良好な防汚性能を発
揮した。しかし、比較例１では、まず、シール材直下部
が著しく汚れ、さらに時間の経過と共にパネル中心部
（パネル下半部の中心部、以下同様）まで汚れていった
ことがわかる。これは、シリコーン系シーラント材から
シリコーンオイル成分が滲み出し、当初はシール材直下
部のみを汚染するが、徐々に汚染領域が拡大し、パネル
中心部にまで達したことを意味する。このように、光触
媒防汚建材の施工にシリコーン系シーラントを使用する
ことは防汚効果を安定に発揮させるためには好ましくな
く、変成シリコーン系シーラントやポリイソブチレン系
シーラントを用いることが好ましいことがわかる。As is apparent from the results shown in FIG. 3, in Examples 1 and 2, the color difference was about 2 at both the center of the lower half of the panel material and immediately below the sealing material, and good antifouling performance was exhibited. . However, in Comparative Example 1, first, it can be seen that the portion immediately below the seal material was significantly contaminated, and further, the central portion of the panel (the center portion of the lower half of the panel, the same applies hereinafter) with time. This means that the silicone oil component oozed out of the silicone-based sealant material and initially contaminates just below the seal material, but the contaminated area gradually expanded to reach the center of the panel. As described above, it is not preferable to use a silicone sealant for the construction of the photocatalytic antifouling building material in order to stably exhibit an antifouling effect, and it is preferable to use a modified silicone sealant or a polyisobutylene sealant. .
【００２９】[0029]
【発明の効果】以上のように、本発明によれば、シリコ
ーンオイルが滲み出すことのない変成シリコーン系又は
ポリイソブチレン系のシーラント材からなる建築用シー
ル材を用い、光触媒膜や親水性膜による防汚処理を施し
たガラス、アルミパネル、アルミ押出形材、タイル等の
建築材料の施工・取付を行なうことにより、シリコーン
オイル付着に起因する汚れの発生がないため、光触媒膜
や親水性膜による防汚効果、セルフクリーニング効果を
長期に亘って安定して発揮することができ、建築物外装
の美観を長期に亘って維持することができる。As described above, according to the present invention, a modified silicone-based or polyisobutylene-based sealant material from which silicone oil does not ooze out is used, and a photocatalytic film or a hydrophilic film is used. Construction and installation of anti-fouling glass, aluminum panels, extruded aluminum shapes, tiles, and other building materials eliminates dirt caused by silicone oil adhesion. The antifouling effect and the self-cleaning effect can be stably exhibited over a long period, and the aesthetic appearance of the building exterior can be maintained over a long period.
【図１】実施例及び比較例で用いたパネル材の形状及び
サイズを示し、（Ａ）は正面図、（Ｂ）は断面図を示し
ている。FIG. 1 shows the shapes and sizes of panel materials used in Examples and Comparative Examples, (A) is a front view, and (B) is a cross-sectional view.
【図２】図１に示すパネル材にシール材を施工した態様
を示し、（Ａ）は正面図、（Ｂ）は断面図を示してい
る。2A and 2B show an embodiment in which a sealing material is applied to the panel material shown in FIG. 1, wherein FIG. 2A is a front view and FIG. 2B is a sectional view.
【図３】試験例における屋外暴露試験結果を示すグラフ
である。FIG. 3 is a graph showing an outdoor exposure test result in a test example.
１ パネル材 ２ 目地部 ３ シール材 1 Panel material 2 Joint 3 Sealing material
フロントページの続き (72)発明者 中田 信之 富山県黒部市堀切1300 (72)発明者 今井 貴志 富山県滑川市上小泉13 (72)発明者 福井 英夫 富山県黒部市中新211−21 (72)発明者 番匠 信幸 富山県黒部市天神新115 (72)発明者 藤嶋 昭 神奈川県川崎市中原区中丸子710番地５ (72)発明者 橋本 和仁 神奈川県横浜市栄区飯島町2073番地２ ニ ューシティ本郷台Ｄ棟213号 Ｆターム(参考） 2E001 DA01 DH23 FA09 FA51 FA62 GA00 GA07 HD00 LA09 MA02 MA04 MA06 4G069 AA03 AA08 AA09 BA04B BA48A BA48C BB04B BC12B BC22B BC35B BC36B BC50B CA01 CA07 CA10 CA11 DA06 EA08 FB24 Continued on the front page (72) Inventor Nobuyuki Nakata 1300 Horikiri, Kurobe City, Toyama Prefecture (72) Inventor Takashi Imai 13 Kamikoizumi, Namerikawa City, Toyama Prefecture (72) Inventor Hideo Fukui 211-21 Nakashin, Kurobe City, Toyama Prefecture (72) Inventor Nobuyuki Bansho 115 Shinjin Tenjin, Kurobe City, Toyama Prefecture (72) Inventor Akira Fujishima 710-5 Nakamaruko, Nakahara-ku, Kawasaki City, Kanagawa Prefecture No. 213 F-term (reference) 2E001 DA01 DH23 FA09 FA51 FA62 GA00 GA07 HD00 LA09 MA02 MA04 MA06 4G069 AA03 AA08 AA09 BA04B BA48A BA48C BB04B BC12B BC22B BC35B BC36B BC50B CA01 CA07 CA10 CA11 DA06 EA08 FB24
Claims (3)
ル材であって、変成シリコーン系又はポリイソブチレン
系のシーラント材からなることを特徴とする建築用シー
ル材。1. A sealing material used in combination with a building material, comprising a modified silicone-based or polyisobutylene-based sealant.
系のシーラント材からなるシール材と組み合わせて用い
られる建築材料であって、シール材以外の建築材料の表
面に防汚作用を有する材料層が設けられていることを特
徴とする建築材料。2. A building material used in combination with a sealing material made of a modified silicone-based or polyisobutylene-based sealing material, wherein a material layer having an antifouling action is provided on a surface of the building material other than the sealing material. A building material characterized by being.
系のシーラント材からなるシール材と組み合わせて用い
られる建築材料であって、シール材以外の建築材料の表
面に光触媒作用を有する材料層が設けられていることを
特徴とする建築材料。3. A building material used in combination with a sealing material made of a modified silicone-based or polyisobutylene-based sealing material, wherein a material layer having a photocatalytic action is provided on a surface of the building material other than the sealing material. A building material characterized by that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000368560A JP2002167871A (en) | 2000-12-04 | 2000-12-04 | Comparatively antifouling sealing compound for building and building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000368560A JP2002167871A (en) | 2000-12-04 | 2000-12-04 | Comparatively antifouling sealing compound for building and building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002167871A true JP2002167871A (en) | 2002-06-11 |
Family
ID=18838766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000368560A Pending JP2002167871A (en) | 2000-12-04 | 2000-12-04 | Comparatively antifouling sealing compound for building and building material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002167871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1553150A1 (en) * | 2002-10-17 | 2005-07-13 | Kaneka Corporation | Sealing material used for transparent material having photocatalyst layer |
| JP2006077123A (en) * | 2004-09-09 | 2006-03-23 | Takiron Co Ltd | Sealing material used for member made of polycarbonate resin having photocatalytic function and constructional structure given by using the sealing material |
| US10201808B2 (en) | 2010-07-23 | 2019-02-12 | Ishihara Sangyo Kaisha, Ltd. | Method for preventing a photocatalyst from decreasing in hydrophilicity |
-
2000
- 2000-12-04 JP JP2000368560A patent/JP2002167871A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1553150A1 (en) * | 2002-10-17 | 2005-07-13 | Kaneka Corporation | Sealing material used for transparent material having photocatalyst layer |
| EP1553150A4 (en) * | 2002-10-17 | 2010-10-06 | Kaneka Corp | Sealing material used for transparent material having photocatalyst layer |
| JP2006077123A (en) * | 2004-09-09 | 2006-03-23 | Takiron Co Ltd | Sealing material used for member made of polycarbonate resin having photocatalytic function and constructional structure given by using the sealing material |
| US10201808B2 (en) | 2010-07-23 | 2019-02-12 | Ishihara Sangyo Kaisha, Ltd. | Method for preventing a photocatalyst from decreasing in hydrophilicity |
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