JP2005061156A - Manufacturing method for functional building member - Google Patents
Manufacturing method for functional building member Download PDFInfo
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- JP2005061156A JP2005061156A JP2003295647A JP2003295647A JP2005061156A JP 2005061156 A JP2005061156 A JP 2005061156A JP 2003295647 A JP2003295647 A JP 2003295647A JP 2003295647 A JP2003295647 A JP 2003295647A JP 2005061156 A JP2005061156 A JP 2005061156A
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- functional building
- building member
- coating film
- photocatalyst
- coating
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 102
- 239000011941 photocatalyst Substances 0.000 claims abstract description 49
- 238000000576 coating method Methods 0.000 claims description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000011230 binding agent Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 150000003377 silicon compounds Chemical class 0.000 claims description 11
- 239000004215 Carbon black (E152) Substances 0.000 claims description 10
- 229930195733 hydrocarbon Natural products 0.000 claims description 10
- 150000002430 hydrocarbons Chemical group 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000006068 polycondensation reaction Methods 0.000 claims description 7
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000008119 colloidal silica Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 15
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 13
- 230000003373 anti-fouling effect Effects 0.000 abstract description 13
- 230000001877 deodorizing effect Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 230000001699 photocatalysis Effects 0.000 abstract description 7
- 239000012298 atmosphere Substances 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000004566 building material Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 2
- -1 enamel Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002928 artificial marble Substances 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZZNQQQWFKKTOSD-UHFFFAOYSA-N diethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OCC)(OCC)C1=CC=CC=C1 ZZNQQQWFKKTOSD-UHFFFAOYSA-N 0.000 description 1
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 description 1
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- RJMRIDVWCWSWFR-UHFFFAOYSA-N methyl(tripropoxy)silane Chemical compound CCCO[Si](C)(OCCC)OCCC RJMRIDVWCWSWFR-UHFFFAOYSA-N 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000011356 non-aqueous organic solvent Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Catalysts (AREA)
- Paints Or Removers (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Abstract
Description
この出願の発明は、防汚性、抗菌性および消臭性に優れた機能性建築部材の製造方法に関するものである。さらに詳しくは、この出願の発明は、使用開始直後から高い防汚性、抗菌性および消臭性を発揮できる機能性建築部材の製造方法に関するものである。 The invention of this application relates to a method for producing a functional building member having excellent antifouling properties, antibacterial properties, and deodorizing properties. More specifically, the invention of this application relates to a method for producing a functional building member capable of exhibiting high antifouling properties, antibacterial properties and deodorizing properties immediately after the start of use.
外壁、屋根、デッキ等の外装材や、クロス、柱、床、手すり等の内装材は、日光、風雨、排気ガス、湿気、油分、タバコ、埃等による汚染を受け、経年により美麗さを失うため、清掃や交換等のメンテナンスを必要とする。また、風呂、洗面所、トイレ、台所等の水廻りでは、カビの発生や細菌の繁殖が起こりやすいため、衛生管理が重要となっている。 Exterior materials such as outer walls, roofs, decks, and interior materials such as cloth, pillars, floors, and handrails are contaminated by sunlight, wind and rain, exhaust gas, moisture, oil, tobacco, dust, etc. and lose their beauty over time. Therefore, maintenance such as cleaning and replacement is required. In addition, hygiene management is important because mold and bacterial growth tend to occur around the water in baths, washrooms, toilets, and kitchens.
そこで、近年、光触媒を配合した塗料を表面に塗布した機能性建材が、防汚性、抗菌性、消臭性等を発揮できるものとして注目され、ビル、マンション、戸建て住宅に導入されている。 Therefore, in recent years, functional building materials in which a coating containing a photocatalyst is applied to the surface are attracting attention as being capable of exhibiting antifouling properties, antibacterial properties, deodorizing properties, and the like, and have been introduced into buildings, condominiums, and detached houses.
光触媒は、光照射により空気中の水から水酸ラジカルを発生させ、有機物の分解力を発揮するとともに、光触媒表面に親水基を形成させ、親水性を発揮する。したがって、光触媒は、汚れ成分の付着を防止したり、細菌の増殖を防いだり、汚れ成分や悪臭成分を分解除去したりでき、優れた防汚、抗菌、消臭剤として注目されている。 The photocatalyst generates hydroxyl radicals from water in the air by light irradiation, exhibits the decomposing power of organic substances, forms a hydrophilic group on the surface of the photocatalyst, and exhibits hydrophilicity. Therefore, the photocatalyst can prevent adhesion of dirt components, prevent bacterial growth, decompose and remove dirt components and malodorous components, and has attracted attention as an excellent antifouling, antibacterial and deodorant.
しかし、前記の機能性建材では、光触媒は、バインダー等の塗料成分で覆われ、塗膜中に固定化されているため、塗膜表面に露出しておらず、使用開始時には分解力や親水性が十分に発現されない。このような機能性建材も、屋外で太陽光に曝されれば光触媒機能が発揮され、塗料成分が分解されて光触媒が表面に露出する。そして、これにより、分解力や親水性が発現される。したがって、使用開始から間もなくして光触媒による防汚性、抗菌性、消臭性が十分に発揮されるようになるのである。 However, in the functional building materials described above, the photocatalyst is covered with a coating component such as a binder and is fixed in the coating film, so it is not exposed to the coating film surface, and has a decomposition power and hydrophilicity at the start of use. Is not fully expressed. Such a functional building material also exhibits a photocatalytic function when exposed to sunlight outdoors, and the coating component is decomposed to expose the photocatalyst on the surface. And thereby, decomposing power and hydrophilicity are expressed. Therefore, the antifouling property, antibacterial property, and deodorizing property due to the photocatalyst are sufficiently exhibited shortly after the start of use.
ところが、このような機能性建材が屋内で使用される場合には、光量が不十分なために光触媒機能が容易には発揮されず、光触媒は塗料成分に覆われたままとなり、光触媒による防汚性、抗菌性、消臭性が全く得られなかったり、得られるまでに長期間を要したりするという問題があった。 However, when such a functional building material is used indoors, the photocatalytic function is not easily exhibited because the light quantity is insufficient, and the photocatalyst remains covered with the paint component, and the antifouling by the photocatalyst is prevented. However, there is a problem that no properties, antibacterial properties, and deodorizing properties are obtained or a long period of time is required to obtain them.
このような問題を解決するものとして、光触媒を配合した塗料を基材に塗布した後、放電処理を施して塗膜表面の塗料成分を分解し、光触媒を表面に露出させる方法が提案されている（特許文献１）。しかし、放電処理を行うためには、特殊な装置や設備が必要であり、機能性建材の製造工程を煩雑にする上、製造コストが高くなるという新たな問題が発生した。
そこで、この出願の発明は、以上のとおりの事情に鑑みてなされたものであり、従来技術の問題点を解消し、屋内で使用される場合でも、使用開始直後から十分な光触媒機能を発揮でき、優れた防汚性、抗菌性および消臭性を示す機能性建築部材を製造するための簡便な方法を提供することを課題としている。 Therefore, the invention of this application has been made in view of the circumstances as described above, solves the problems of the prior art, and can exhibit a sufficient photocatalytic function immediately after the start of use even when used indoors. An object of the present invention is to provide a simple method for producing a functional building member exhibiting excellent antifouling properties, antibacterial properties and deodorizing properties.
この出願の発明は、上記の課題を解決するものとして、第１には、基材に光触媒を含有するコーティング剤を塗布し、塗膜を形成した後、該塗膜表面に水分を付加し、紫外線を照射することを特徴とする機能性建築部材の製造方法を提供する。 The invention of this application is to solve the above-mentioned problem. First, after applying a coating agent containing a photocatalyst to a base material to form a coating film, moisture is added to the coating film surface, Provided is a method for producing a functional building member characterized by irradiating ultraviolet rays.
また、この出願の発明は、第２には、塗膜表面への水分の付加を、温度２０〜４０℃、湿度５０〜９０％ＲＨとすることにより行う前記の機能性建築部材の製造方法を、第３には、塗膜表面への水分の付加を、加温した塗膜表面に水を噴霧または塗布することにより行う機能性建築部材の製造方法を提供する。 In addition, the invention of this application secondly provides the method for producing a functional building member as described above, wherein moisture is added to the surface of the coating film at a temperature of 20 to 40 ° C. and a humidity of 50 to 90% RH. 3rdly, the manufacturing method of the functional building member which performs addition of the water | moisture content to the coating-film surface by spraying or apply | coating water to the heated coating-film surface is provided.
この出願の発明は、第４には、光触媒を含有するコーティング剤を、酸化チタン微粒子とシリコン系バインダーを含有してなるものとする前記いずれかの機能性建築部材の製造方法を提供する。 Fourthly, the invention of this application provides a method for producing any one of the above functional building members, wherein the coating agent containing a photocatalyst contains titanium oxide fine particles and a silicon-based binder.
そして、この出願の発明は、第５には、光触媒を含有するコーティング剤におけるシリコン系バインダーが、次の（ａ）〜（ｃ）
（ａ）次式（Ｉ）
And, in the fifth aspect of the present invention, the silicon binder in the coating agent containing the photocatalyst is the following (a) to (c):
(A) Formula (I)
（ただし、Ｒ1は一価の炭化水素基である）
で表されるケイ素化合物および／またはコロイダルシリカ
（ｂ）次式（II）
(Where R 1 is a monovalent hydrocarbon group)
A silicon compound and / or colloidal silica (b)
（ただし、Ｒ1、Ｒ2は一価の炭化水素基である）
で表されるケイ素化合物
（ｃ）次式（III）
(However, R 1 and R 2 are monovalent hydrocarbon groups)
A silicon compound (c) represented by the following formula (III)
（ただし、Ｒ1、Ｒ2は一価の炭化水素基である）
で表されるケイ素化合物
の３成分を、（ａ）合計２０〜２００重量部、（ｂ）１００重量部、（ｃ）０〜６０重量部で混合し、加水分解および重縮合して得られる９００以上の重量平均分子量（ＰＳ換算）を有するものである前記の機能性建築部材の製造方法を提供する。
(However, R 1 and R 2 are monovalent hydrocarbon groups)
900 obtained by mixing (a) a total of 20 to 200 parts by weight, (b) 100 parts by weight, (c) 0 to 60 parts by weight, and hydrolysis and polycondensation. The manufacturing method of the said functional building member which has the above weight average molecular weight (PS conversion) is provided.
上記第１の発明の機能性建築部材の製造方法では、光触媒を含有するコーティング剤を塗布し、得られた塗膜表面に紫外線を照射することにより、塗膜中の光触媒が活性化され、光触媒機能により塗膜表面のコーティング剤成分が分解される。このとき、紫外線照射には市販のＵＶランプが適用できることから、従来の放電処理を伴う方法に比べ、簡便かつ安価に機能性建築部材を製造することが可能となる。また、紫外線照射の際、塗膜表面に水分を付加することにより、光触媒による水酸ラジカルの発生がさらに促進され、コーティング剤成分の分解反応が進行する。したがって、短時間で光触媒が表面に露出されるようになる。このようにして製造される機能性建築部材では、屋内での使用においても、使用開始直後から光触媒による防汚性、抗菌性、消臭性が発揮される。 In the method for producing a functional building member of the first invention, the photocatalyst in the coating film is activated by applying a coating agent containing a photocatalyst and irradiating the obtained coating film surface with ultraviolet rays. The coating agent component on the coating film surface is decomposed by the function. At this time, since a commercially available UV lamp can be applied for ultraviolet irradiation, it is possible to manufacture a functional building member more easily and at a lower cost than a conventional method involving discharge treatment. In addition, by adding moisture to the surface of the coating film during ultraviolet irradiation, the generation of hydroxyl radicals by the photocatalyst is further promoted, and the decomposition reaction of the coating agent component proceeds. Accordingly, the photocatalyst is exposed to the surface in a short time. The functional building member produced in this way exhibits antifouling properties, antibacterial properties, and deodorizing properties due to the photocatalyst immediately after the start of use even when used indoors.
また、上記第２の発明の機能性建築部材の製造方法では、光触媒を含有するコーティング剤を塗布した後、雰囲気を温度２０〜４０℃、湿度５０〜９０％ＲＨとすることにより、塗膜表面に水分を過剰に存在させることができる。したがって、紫外線を照射した際に光触媒による水酸ラジカルの発生がさらに促進され、コーティング剤成分の分解反応が進行する。 Moreover, in the manufacturing method of the functional building member of the said 2nd invention, after apply | coating the coating agent containing a photocatalyst, the atmosphere is 20-40 degreeC and humidity is 50-90% RH, By the coating-film surface Excess water can be present. Therefore, generation of hydroxyl radicals by the photocatalyst when irradiated with ultraviolet light is further promoted, and the decomposition reaction of the coating agent component proceeds.
さらに、上記第３の発明の機能性建築部材の製造方法では、光触媒を含有するコーティング剤を塗布した後、得られた塗膜を加温し、そこに水を噴霧または塗布する。これにより塗膜表面に水分が付加され、紫外線照射による水酸ラジカルの発生が促進される。したがって、簡便にコーティング剤成分の分解反応を進行させることできる。 Furthermore, in the method for producing a functional building member of the third invention, after the coating agent containing the photocatalyst is applied, the obtained coating film is heated and water is sprayed or applied thereto. Thereby, moisture is added to the surface of the coating film, and generation of hydroxyl radicals by ultraviolet irradiation is promoted. Therefore, the decomposition reaction of the coating agent component can be easily advanced.
上記第４の発明の機能性建築部材の製造方法では、光触媒を含有するコーティング剤を、酸化チタン微粒子とシリコン系バインダーを含有してなるものとすることにより、機能性建築部材の表面に光触媒機能を有する高強度で均一な塗膜が形成される。 In the method for producing a functional building member of the fourth invention, the coating agent containing a photocatalyst contains titanium oxide fine particles and a silicon-based binder, whereby the surface of the functional building member has a photocatalytic function. A high-strength and uniform coating having
また、上記第５の発明の機能性建築部材の製造方法では、機能性建築部材表面に高い防汚性、抗菌性、消臭性を有し、基材との密着性が高く、高強度な塗膜が形成される。 In the method for producing a functional building member of the fifth invention, the surface of the functional building member has high antifouling properties, antibacterial properties, and deodorizing properties, and has high adhesion to the base material and high strength. A coating film is formed.
この出願の発明の機能性建築部材の製造方法は、基材に、光触媒を含有するコーティング剤を塗布し、塗膜を形成した後、該塗膜表面に水分を付加し、紫外線を照射することを特徴とする。 In the method for producing a functional building member of the invention of this application, a coating agent containing a photocatalyst is applied to a base material to form a coating film, and then water is added to the coating film surface and irradiated with ultraviolet rays. It is characterized by.
このとき、基材の材質はとくに限定されない。例えば、アルミニウム、鉄等の金属板、ステンレス等の合金板、ブリキやトタン等のメッキ板などの金属基材、木材、合板、ＭＤＦ、パーティクルボード等の木質基材、ＦＲＰ、人造大理石、樹脂成形品等のプラスチック基材、ガラス、ホーロー、セラミックス、石膏ボード、珪酸カルシウム板、ロックウール板、セメント板、粘土板、陶磁器質タイル、スレート等の無機質基材、さらには、各種シート、紙、繊維質シート、不織布等が使用できる。さらに、これらの基材に有機塗装を施したものやこれらの基材を複数積層させたものを用いてもよい。 At this time, the material of the base material is not particularly limited. For example, metal substrates such as metal plates such as aluminum and iron, alloy plates such as stainless steel, plated plates such as tin and tin, wood substrates such as wood, plywood, MDF, particle board, FRP, artificial marble, resin molding Plastic substrates such as products, glass, enamel, ceramics, gypsum board, calcium silicate board, rock wool board, cement board, clay board, ceramic tile, slate, etc., and various sheets, paper, fiber A quality sheet, nonwoven fabric, etc. can be used. Furthermore, you may use what gave organic coating to these base materials, or what laminated these base materials in multiple numbers.
この出願の発明の機能性建築部材の製造方法において、基材に塗布されるコーティング剤は、光触媒を含有するものであればよく、その種類や組成はとくに限定されない。コーティング剤における光触媒としては、ＴｉＯ2、ＺｎＯ、ＷＯ3、Ｆｅ2Ｏ3、ＺｎＳ、Ｐｔ／ＴｉＯ2等が例示され、これらは粉体であってもゾルであってもよい。ゾル状のものとする場合、水分散性であってもアルコール等の非水系有機溶剤分散性であってもよい。また、光触媒は、Ｐｔ担持ルチル型酸化チタンのように、金属酸化物にＰｔ、Ｒｅ、Ｒｈ、Ｒｕ、Ａｕ、Ｐｄ等の遷移金属を１種以上担持したものであってもよい。このように遷移金属が担持された金属酸化物では、より高い触媒活性が期待できる。 In the method for producing a functional building member of the invention of this application, the coating agent applied to the base material may contain a photocatalyst, and the type and composition thereof are not particularly limited. Examples of the photocatalyst in the coating agent include TiO 2 , ZnO, WO 3 , Fe 2 O 3 , ZnS, Pt / TiO 2, etc. These may be powder or sol. In the case of a sol form, it may be water dispersible or non-aqueous organic solvent dispersible such as alcohol. The photocatalyst may be one in which one or more transition metals such as Pt, Re, Rh, Ru, Au, and Pd are supported on a metal oxide, such as Pt-supported rutile titanium oxide. In this way, a higher catalytic activity can be expected with a metal oxide carrying a transition metal.
一方、コーティング剤におけるのバインダー成分としては、アクリル系、ウレタン系、フッ素系、シリコン系のものが例示される。中でも、シリコン系バインダーは、高強度で均一な塗膜を与えることから、好ましい。シリコン系バインダーとしては、各種のものが適用できるが、例えば、次の（ａ）〜（ｃ）
（ａ）次式（Ｉ）
On the other hand, examples of the binder component in the coating agent include acrylic, urethane, fluorine, and silicon. Among these, a silicon-based binder is preferable because it provides a high-strength and uniform coating film. Various types of silicon binder can be used. For example, the following (a) to (c)
(A) Formula (I)
（ただし、Ｒ1は一価の炭化水素基である）
で表されるケイ素化合物および／またはコロイダルシリカ
（ｂ）次式（II）
(Where R 1 is a monovalent hydrocarbon group)
A silicon compound and / or colloidal silica (b)
（ただし、Ｒ1、Ｒ2は一価の炭化水素基である）
で表されるケイ素化合物
（ｃ）次式（III）
(However, R 1 and R 2 are monovalent hydrocarbon groups)
A silicon compound (c) represented by the following formula (III)
（ただし、Ｒ1、Ｒ2は一価の炭化水素基である）
で表されるケイ素化合物
の３成分を、（ａ）合計２０〜２００重量部、（ｂ）１００重量部、（ｃ）０〜６０重量部で混合し、加水分解および重縮合して得られる９００以上の重量平均分子量（ＰＳ換算）を有するものは、基材との密着性が高く、高強度な塗膜を与えることから好ましいものとして挙げられる。
(However, R 1 and R 2 are monovalent hydrocarbon groups)
900 obtained by mixing (a) a total of 20 to 200 parts by weight, (b) 100 parts by weight, (c) 0 to 60 parts by weight, and hydrolysis and polycondensation. What has the above weight average molecular weight (PS conversion) is mentioned as a preferable thing from the high adhesiveness with a base material, and giving a high intensity | strength coating film.
このようなシリコン系バインダーにおいて、（ａ）〜（ｃ）は、いずれも次式（IV） In such a silicon-based binder, (a) to (c) are all represented by the following formula (IV):
（ただし、Ｒ1、Ｒ2は一価の炭化水素基であり、ｎは置換基の数を表す０〜２の整数である）
で表されるケイ素化合物である。つまり、（ａ）成分は式（IV）においてｎ＝０、（ｂ）成分は式（IV）においてｎ＝１、（ｃ）成分は式（IV）においてｎ＝２のケイ素化合物である。これら（ａ）〜（ｃ）の各成分において、Ｒ1とＲ2は各々同一であっても別異であってもよい一価の炭化水素基である。また、（ａ）〜（ｃ）におけるＲ1はすべて同一であってもよいし、別異であっても良く、（ｂ）および（ｃ）におけるＲ2も各々同じものであってもよいし、異なるものであってもよい。
(Wherein, R 1, R 2 is a monovalent hydrocarbon radical, n is an integer of 0 to 2 representing the number of substituents)
It is a silicon compound represented by these. That is, the component (a) is a silicon compound in which n = 0 in the formula (IV), the component (b) is n = 1 in the formula (IV), and the component (c) is a silicon compound in the formula (IV) where n = 2. In these components (a) to (c), R 1 and R 2 are monovalent hydrocarbon groups which may be the same or different. In addition, R 1 in (a) to (c) may all be the same or different, and R 2 in (b) and (c) may be the same. May be different.
Ｒ1としては、炭素数１〜４のアルキル基、Ｒ2としては炭素数１〜８の置換または非置換炭化水素基が好ましく例示される。具体的には、Ｒ1としては、メチル、エチル、プロピル、ブチル等のアルキル基が、Ｒ2としては、メチル、エチル、プロピル、ブチルに加えて、ペンチル、ヘキシル、ヘプチル、オクチル等のアルキル基、フェニル、トルイル等のアリール基、メトキシ、エトキシ等のアルコキシ基、ビニル基、さらにこれらがアルキル基、ハロゲン基、アミノ基、ニトロ基、シアノ基、水酸基等で置換された各種の置換基が例示される。したがって、（ａ）成分としては、例えばテトラメトキシシラン、テトラエトキシシラン等のテトラアルコキシシランが挙げられる。また、（ａ）成分はケイ素化合物であるが、コロイダルシリカの状態で存在するものであってもよいし、式（Ｉ）のケイ素化合物に加えてコロイダルシリカを含有するものであってもよい。次に（ｂ）成分としては、メチルトリメトキシシラン、メチルトリエトキシシラン、メチルトリプロポキシシラン、フェニルトリメトキシシラン、フェニルトリエトキシシラン等のオルガノトリアルコキシシランが例示される。さらに、（ｃ）成分としては、例えばジメチルジメトキシシラン、ジメチルジエトキシシラン、ジフェニルジメトキシシラン、ジフェニルジエトキシシランが挙げられる。 R 1 is preferably exemplified by an alkyl group having 1 to 4 carbon atoms, and R 2 is preferably a substituted or unsubstituted hydrocarbon group having 1 to 8 carbon atoms. Specifically, R 1 is an alkyl group such as methyl, ethyl, propyl, or butyl, and R 2 is an alkyl group such as pentyl, hexyl, heptyl, or octyl in addition to methyl, ethyl, propyl, or butyl. And aryl groups such as phenyl and toluyl, alkoxy groups such as methoxy and ethoxy, vinyl groups, and various substituents in which these are substituted with alkyl groups, halogen groups, amino groups, nitro groups, cyano groups, hydroxyl groups, etc. Is done. Accordingly, examples of the component (a) include tetraalkoxysilanes such as tetramethoxysilane and tetraethoxysilane. Moreover, although (a) component is a silicon compound, it may exist in the state of colloidal silica, and may contain colloidal silica in addition to the silicon compound of Formula (I). Next, examples of the component (b) include organotrialkoxysilanes such as methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, phenyltrimethoxysilane, and phenyltriethoxysilane. Furthermore, examples of the component (c) include dimethyldimethoxysilane, dimethyldiethoxysilane, diphenyldimethoxysilane, and diphenyldiethoxysilane.
これら（ａ）〜（ｃ）の３成分は、（ａ）合計２０〜２００重量部、（ｂ）１００重量部、（ｃ）０〜６０重量部の混合比で混合される。このような混合比は、加水分解、重縮合により好適な重量平均分子量を得る上で重要である。なお、本明細書において、「重量平均分子量」とは、例えばＧＰＣ（ゲルパーミエーションクロマトグラフ）により求められる値（ポリスチレン換算）を意味するものとする。 These three components (a) to (c) are mixed at a mixing ratio of (a) 20 to 200 parts by weight in total, (b) 100 parts by weight, and (c) 0 to 60 parts by weight. Such a mixing ratio is important in obtaining a suitable weight average molecular weight by hydrolysis and polycondensation. In addition, in this specification, "weight average molecular weight" shall mean the value (polystyrene conversion) calculated | required, for example by GPC (gel permeation chromatograph).
さらに、このようなシリコン系バインダーは、（ａ）〜（ｃ）成分を、水またはメタノール、エタノール、イソプロピルアルコール等のアルコール類、あるいはエチレングリコール類等の各種溶媒中で、もしくはこれらの溶媒にトルエン、キシレン、酢酸エチル、酢酸ブチル等を加えた混合溶媒中で混合し、加水分解および重縮合させることにより得られるものであってもよい。このとき、加水分解と重縮合は水によって進行するが、重縮合反応をさらに促進させるために、各種の硬化触媒を添加してもよい。重量平均分子量が９００未満の場合には、光触媒の分散性が低下したり、膜形成能が低下したりして良好な塗膜が得られ難くなるため、上記のシリコン系バインダーの重量平均分子量は９００以上（ＰＳ換算）とする。 Further, such a silicon-based binder contains components (a) to (c) in water, alcohols such as methanol, ethanol, isopropyl alcohol, or various solvents such as ethylene glycol, or toluene in these solvents. , Xylene, ethyl acetate, butyl acetate and the like may be mixed in a mixed solvent, followed by hydrolysis and polycondensation. At this time, hydrolysis and polycondensation proceed with water, but various curing catalysts may be added to further accelerate the polycondensation reaction. When the weight average molecular weight is less than 900, the dispersibility of the photocatalyst decreases or the film forming ability decreases, and it becomes difficult to obtain a good coating film. 900 or more (PS conversion).
この出願の発明の機能性建築部材の製造方法において、光触媒を含有するコーティング剤の固形分量は、とくに限定されない。一般に光触媒の量が多いほど触媒機能が発揮されるが、多すぎると反対に膜形成能が低下したり、十分な塗膜強度が得られなくなったりすることから、例えば、光触媒とバインダー成分の固形分比を１：９〜８：２の範囲とすることができる。また、このようなコーティング剤は、光触媒以外にも、分散性や安定性の向上、着色等の目的に応じて、分散剤、界面活性剤、レベリング剤、増粘剤、顔料、染料等を含有するものとしてもよい。 In the method for producing a functional building member of the invention of this application, the solid content of the coating agent containing the photocatalyst is not particularly limited. In general, the larger the amount of photocatalyst, the more the catalyst function is exerted. However, if the amount is too large, the film-forming ability is decreased or sufficient film strength cannot be obtained. The fraction ratio can be in the range of 1: 9 to 8: 2. In addition to the photocatalyst, such a coating agent contains a dispersant, a surfactant, a leveling agent, a thickener, a pigment, a dye, etc., depending on the purpose of dispersibility and stability, coloring, etc. It is good also as what to do.
この出願の発明の機能性建築部材の製造方法において、光触媒を含有するコーティング剤を基材に塗布する方法はとくに限定されず、スプレー、刷毛塗り、バーコーター、スピンコーター、ディッピング、ロールコーター、フローコーター等の一般的な塗布方法が用いられる。もちろん、光触媒を含有するコーティング剤は、基材に直接塗布してもよいし、下塗り塗料を塗布して下層を設けてもよい。また、このようにして得られる塗膜や下層の厚さはとくに限定されない。 In the method for producing a functional building member of the invention of this application, a method for applying a coating agent containing a photocatalyst to a substrate is not particularly limited, and spray, brush coating, bar coater, spin coater, dipping, roll coater, flow. A general coating method such as a coater is used. Of course, the coating agent containing a photocatalyst may be applied directly to the substrate, or an undercoat may be applied to provide a lower layer. Moreover, the thickness of the coating film and lower layer obtained in this way is not specifically limited.
この出願の発明の機能性建築部材の製造方法では、以上のとおりの光触媒を含有するコーティング剤を基材に塗布した後、得られた塗膜表面に水を付加し、紫外線を照射する。塗膜表面への水の付加は、紫外線照射を行う雰囲気を高湿とすることにより行ってもよいし、塗膜表面を直接水で濡らした後、紫外線を照射することにより行ってもよい。具体的には、温度２０〜４０℃、湿度５０〜９０％ＲＨの雰囲気下で塗膜表面に紫外線を照射することが好ましい。さらに簡便な方法としては、塗膜表面を加温し、水を噴霧または塗布して紫外線を照射する方法が挙げられる。 In the method for producing a functional building member of the invention of this application, the coating agent containing the photocatalyst as described above is applied to a substrate, and then water is added to the surface of the obtained coating film and irradiated with ultraviolet rays. Addition of water to the surface of the coating film may be performed by increasing the atmosphere in which the ultraviolet irradiation is performed, or may be performed by directly irradiating the coating film surface with water and then irradiating with ultraviolet light. Specifically, it is preferable to irradiate the coating film surface with ultraviolet light in an atmosphere of a temperature of 20 to 40 ° C. and a humidity of 50 to 90% RH. As a simpler method, there is a method in which the surface of the coating film is heated, and water is sprayed or applied to irradiate ultraviolet rays.
この出願の発明の機能性建築部材の製造方法において照射される紫外線としては、ブラックライト、キセノンランプ、低〜超高圧水銀灯、殺菌灯などを用いた波長１００〜４００ｎｍの光としてもよいし、太陽光等の紫外線を含む光としてもよい。中でも、３６５ｎｍピーク波長域における紫外線強度が１〜５０ｍＷ／ｃｍ2であるものが好ましい。 The ultraviolet rays irradiated in the method for producing a functional building member of the invention of this application may be light having a wavelength of 100 to 400 nm using a black light, a xenon lamp, a low to ultrahigh pressure mercury lamp, a germicidal lamp, etc. It is good also as light containing ultraviolet rays, such as light. Among them, those having an ultraviolet intensity of 1 to 50 mW / cm 2 in a 365 nm peak wavelength region are preferable.
以上のとおりのこの出願の発明の機能性建築部材の製造方法では、塗膜表面に水を付加させて紫外線照射を行うことにより光触媒作用が発揮され、塗膜表面で水酸ラジカルがより多く発生する。これにより短時間で塗膜表面のコーティング剤成分が分解され、塗膜表面に光触媒が露出して分解力や親水性が発現される。したがって、機能性建築部材が内装材等として屋内で使用される場合でも、使用開始直後から防汚性、抗菌性、消臭性が発揮されるようになる。 In the method for producing a functional building member of the invention of this application as described above, photocatalytic action is exhibited by adding water to the coating film surface and irradiating with ultraviolet rays, and more hydroxyl radicals are generated on the coating film surface. To do. Thereby, the coating agent component on the surface of the coating film is decomposed in a short time, and the photocatalyst is exposed on the surface of the coating film, so that the decomposing power and hydrophilicity are expressed. Therefore, even when the functional building member is used indoors as an interior material or the like, antifouling properties, antibacterial properties, and deodorizing properties are exhibited immediately after the start of use.
この出願の発明の機能性建築部材の製造方法によって得られる機能性建築部材は、外壁材、屋根材、瓦、雨樋、門、フェンス、ドア、窓、およびそれらの周辺部材として、また天井、壁、床、収納部材、造作材、キッチン、トイレ、洗面、浴室、窓およびそれらの周辺部材として、さらには照明カバー、ランプ、障子、ふすま等の建具、インテリア部材等として使用されるものであるが、とくに光量の少ない屋内用途に適したものである。 The functional building member obtained by the method for producing the functional building member of the invention of this application includes an outer wall material, a roofing material, a tile, a rain gutter, a gate, a fence, a door, a window, and their peripheral members, and a ceiling, Walls, floors, storage members, artificial materials, kitchens, toilets, washbasins, bathrooms, windows and their peripheral members, as well as lighting covers, lamps, shoji, bran and other fittings, interior members, etc. However, it is particularly suitable for indoor applications where the amount of light is low.
以下、実施例を示し、この発明の実施の形態についてさらに詳しく説明する。もちろん、この発明は以下の例に限定されるものではなく、細部については様々な態様が可能であることは言うまでもない。 Hereinafter, examples will be shown, and the embodiments of the present invention will be described in more detail. Of course, the present invention is not limited to the following examples, and it goes without saying that various aspects are possible in detail.
＜実施例１＞
メチルトリメトキシシラン１００重量部、トリエトキシシラン１０重量部とＩＰＡオルガノシリカゾル（触媒化成社製、商品名：ＯＳＣＡＬ１４３２）９０重量部、ジメチルジメトキシシラン３０重量部、およびイソプロピルアルコール１００重量部を混合し、水９０重量部を添加した。攪拌しながら６０℃で反応させ、重量平均分子量が約１５００のシリコン系バインダーを調製した。
<Example 1>
100 parts by weight of methyltrimethoxysilane, 10 parts by weight of triethoxysilane, 90 parts by weight of IPA organosilica sol (trade name: OSCAL1432 manufactured by Catalyst Kasei Co., Ltd.), 30 parts by weight of dimethyldimethoxysilane, and 100 parts by weight of isopropyl alcohol are mixed. 90 parts by weight of water were added. A silicon binder having a weight average molecular weight of about 1500 was prepared by reacting at 60 ° C. with stirring.
次に、得られたシリコン系バインダーに、酸化チタンゾル（石原産業（株）製、ＳＴＳ０１）を固形分の重量比がシリコン系バインダー固形分／酸化チタン＝５０／５０となるように添加した後、メタノールで固形分が１％となるように希釈し、光触媒を含有するコーティング剤を得た。 Next, after adding titanium oxide sol (STS01, manufactured by Ishihara Sangyo Co., Ltd.) to the obtained silicon-based binder so that the weight ratio of the solid content is silicon-based binder solid content / titanium oxide = 50/50, It was diluted with methanol to a solid content of 1% to obtain a coating agent containing a photocatalyst.
得られたコーティング剤をサイディング基板に１００ｇ／ｍ2でスプレー塗装し、風乾した後、１５０℃で硬化させた。得られた塗膜の厚さは２μｍであった。 The obtained coating agent was spray-coated on a siding substrate at 100 g / m 2 , air-dried, and cured at 150 ° C. The thickness of the obtained coating film was 2 μm.
次いで、２０℃、４５％ＲＨの雰囲気中で、高圧水銀灯（オーク製作所ＯＲＣハンディＷ３００）により、２ｃｍの高さから塗膜に紫外線を照射し、機能性建築部材を得た。 Subsequently, the coating film was irradiated with ultraviolet rays from a height of 2 cm with a high-pressure mercury lamp (Oak Seisakusho ORC Handy W300) in an atmosphere of 20 ° C. and 45% RH to obtain a functional building member.
紫外線照射時間毎の機能性建築部材表面の接触角を測定し、塗膜表面が親水性となるまでの時間を確認した。 The contact angle of the functional building member surface for each ultraviolet irradiation time was measured, and the time until the coating film surface became hydrophilic was confirmed.
結果を図１に示した。
＜実施例２＞
紫外線照射を２５℃、７０％ＲＨの雰囲気中で行った以外は、実施例１と同様の方法により機能性建築部材を製造し、塗膜表面が親水性となるまでの時間を確認した。
The results are shown in FIG.
<Example 2>
A functional building member was produced by the same method as in Example 1 except that ultraviolet irradiation was performed in an atmosphere of 25 ° C. and 70% RH, and the time until the coating film surface became hydrophilic was confirmed.
結果を図１に示した。
＜実施例３＞
紫外線照射を３０℃、８０％ＲＨの雰囲気中で行った以外は、実施例１と同様の方法により機能性建築部材を製造し、塗膜表面が親水性となるまでの時間を確認した。
The results are shown in FIG.
<Example 3>
A functional building member was produced by the same method as in Example 1 except that ultraviolet irradiation was performed in an atmosphere of 30 ° C. and 80% RH, and the time until the coating film surface became hydrophilic was confirmed.
結果を図１に示した。
＜実施例４＞
紫外線照射を、４０℃、湿度９０％ＲＨで行った以外は、実施例１と同様の方法により機能性建築部材を製造した。
The results are shown in FIG.
<Example 4>
A functional building member was produced by the same method as in Example 1 except that the ultraviolet irradiation was performed at 40 ° C. and a humidity of 90% RH.
塗膜表面が親水性となるまでの時間を確認し、結果を図１に示した。
＜実施例５＞
実施例１と同様の方法によりコーティング剤をサイディング基材に塗布し、風乾および硬化させて得られた塗膜を、表面温度が６０℃となるようにプレヒートし、スポンジロールで水を約５０ｇ／ｍ2塗布した後、実施例１と同様の方法により紫外線を照射した。
The time until the coating film surface became hydrophilic was confirmed, and the results are shown in FIG.
<Example 5>
The coating obtained by applying the coating agent to the siding substrate by the same method as in Example 1, air drying and curing was preheated so that the surface temperature was 60 ° C., and water was added at about 50 g / min with a sponge roll. After m 2 application, ultraviolet rays were irradiated in the same manner as in Example 1.
塗膜表面が親水性となるまでの時間を確認し、結果を図１に示した。
＜比較例１＞
実施例１と同様の方法によりコーティング剤をサイディング基材に塗布し、風乾および硬化させた後、２３℃の乾燥雰囲気（湿度２８％ＲＨ）中で塗膜に紫外線を照射し、機能性建築部材を得た。
The time until the coating film surface became hydrophilic was confirmed, and the results are shown in FIG.
<Comparative Example 1>
The coating agent was applied to the siding substrate by the same method as in Example 1, air-dried and cured, and then the coating film was irradiated with ultraviolet rays in a dry atmosphere at 23 ° C. (humidity 28% RH). Got.
紫外線照射時間毎の機能性建築部材表面の接触角を測定し、塗膜表面が親水性となるまでの時間を確認した。 The contact angle of the functional building member surface for each ultraviolet irradiation time was measured, and the time until the coating film surface became hydrophilic was confirmed.
結果を図１に示した。 The results are shown in FIG.
図１より、基材に光触媒を含有するコーティング剤を塗布して得られた塗膜に水分を付加させ、紫外線を照射することにより、高い撥水性（接触角＞９５°）を示していた塗膜表面が短時間で親水性（接触角＜１°）となることが確認された（実施例１〜５）。とくに、高湿雰囲気下で紫外線照射を行った場合（実施例３および４）や塗膜を直接濡らして紫外線を照射した場合（実施例５）は、５〜６分で塗膜表面が親水性となった。 As shown in FIG. 1, the coating film obtained by applying a coating agent containing a photocatalyst to a substrate was added with moisture, and irradiated with ultraviolet rays, thereby exhibiting high water repellency (contact angle> 95 °). It was confirmed that the membrane surface became hydrophilic (contact angle <1 °) in a short time (Examples 1 to 5). In particular, when UV irradiation is performed in a high humidity atmosphere (Examples 3 and 4) or when the coating film is directly wetted and irradiated with UV light (Example 5), the coating surface becomes hydrophilic in 5 to 6 minutes. It became.
一方、光触媒を含有するコーティング剤を塗布して得られた塗膜に、乾燥雰囲気下で紫外線を照射した場合には、長時間に渡り塗膜の撥水性が維持され、３０分経過後も完全に親水性にはならなかった（比較例１）。 On the other hand, when the coating film obtained by applying a coating agent containing a photocatalyst is irradiated with ultraviolet rays in a dry atmosphere, the water repellency of the coating film is maintained over a long period of time, and even after 30 minutes have elapsed It did not become hydrophilic (Comparative Example 1).
以上より、光触媒を含有するコーティング剤を塗布して得られた塗膜に水分を付加させて紫外線を照射することにより、光触媒機能が発揮され、塗膜表面のコーティング剤成分が分解されて光触媒が塗膜表面に露出されたことが示唆された。したがって、この出願の発明の機能性建築部材の製造方法により、使用開始直後から防汚性、抗菌性、消臭性を発揮できる機能性建築部材が、短時間の紫外線照射で、簡便に得られることが示された。 As described above, by adding moisture to the coating film obtained by applying the coating agent containing the photocatalyst and irradiating with ultraviolet rays, the photocatalytic function is exhibited, and the coating agent component on the coating film surface is decomposed to cause the photocatalyst to decompose. It was suggested that it was exposed to the coating surface. Therefore, by the method for producing a functional building member of the invention of this application, a functional building member that can exhibit antifouling properties, antibacterial properties, and deodorizing properties immediately after the start of use can be easily obtained by short-time ultraviolet irradiation. It was shown that.
以上詳しく説明したとおり、この出願の発明によって、屋内で使用される場合でも、使用開始直後から光触媒による防汚性、抗菌性、消臭性が発揮される機能性建築部材の簡便な製造方法が提供される。 As described above in detail, according to the invention of this application, even when used indoors, there is a simple method for producing a functional building member that exhibits antifouling properties, antibacterial properties, and deodorizing properties with a photocatalyst immediately after the start of use. Provided.
この出願の発明の機能性建築部材の製造方法では、光触媒を含有するコーティング剤を塗布し、得られた塗膜表面に紫外線を照射することにより、塗膜中の光触媒が活性化され、光触媒機能により塗膜表面付近のコーティング剤成分が分解される。紫外線照射には市販のＵＶランプが使用でき、従来の放電処理を伴う方法に比べ、簡便かつ安価に機能性建築部材を製造することが可能となる。また、紫外線照射の際、塗膜表面に水を付加することにより、光触媒によるラジカルの発生がさらに促進されることから、短時間で塗膜表面のコーティング剤成分が分解され、光触媒が表面に露出される。 In the method for producing a functional building member of the invention of this application, the photocatalyst in the coating film is activated by applying a coating agent containing a photocatalyst and irradiating the obtained coating film surface with ultraviolet rays. As a result, the coating agent component in the vicinity of the coating film surface is decomposed. A commercially available UV lamp can be used for ultraviolet irradiation, and a functional building member can be produced easily and inexpensively as compared with a conventional method involving discharge treatment. In addition, by adding water to the coating surface during UV irradiation, radical generation by the photocatalyst is further promoted, so that the coating agent component on the coating surface is decomposed in a short time, and the photocatalyst is exposed to the surface. Is done.
Claims (5)
（ａ）次式（Ｉ）
で表されるケイ素化合物および／またはコロイダルシリカ
（ｂ）次式（II）
で表されるケイ素化合物
（ｃ）次式（III）
で表されるケイ素化合物
の３成分を、（ａ）合計２０〜２００重量部、（ｂ）１００重量部、（ｃ）０〜６０重量部で混合し、加水分解および重縮合して得られる９００以上の重量平均分子量（ＰＳ換算）を有するものとする請求項４の機能性建築部材の製造方法。 The silicon-based binder in the coating agent containing a photocatalyst includes the following (a) to (c):
(A) Formula (I)
A silicon compound and / or colloidal silica (b)
A silicon compound (c) represented by the following formula (III)
900 obtained by mixing (a) a total of 20 to 200 parts by weight, (b) 100 parts by weight, (c) 0 to 60 parts by weight, and hydrolysis and polycondensation. The method for producing a functional building member according to claim 4, which has the above weight average molecular weight (PS conversion).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007262150A (en) * | 2006-03-27 | 2007-10-11 | Ohbayashi Corp | Photocatalyst coating agent and photocatalyst carrier |
| JP2008073664A (en) * | 2006-09-25 | 2008-04-03 | Totsuya Echo:Kk | Coating method giving photodegradation performance and workpiece given photodegradation performance |
| JP2010163584A (en) * | 2009-01-16 | 2010-07-29 | Kyushu Hi-Tech:Kk | Flexibility-imparting normal temperature curable inorganic coating agent for protection of chemical floor |
| KR100987356B1 (en) * | 2008-05-30 | 2010-10-12 | 충북대학교 산학협력단 | Silicone Hybrid Hard Coating Composition for Platic Substrate Comprising Photocatalyst |
| KR20150101151A (en) * | 2014-02-26 | 2015-09-03 | 엘지전자 주식회사 | Coating composition comprising photocatalyst for visible rays and articles comprising same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141503A (en) * | 1994-11-28 | 1996-06-04 | Matsushita Electric Works Ltd | Method for forming inorganic coating film |
| JPH08259891A (en) * | 1995-03-24 | 1996-10-08 | Matsushita Electric Works Ltd | Formation of inorganic coating film |
| JPH09273288A (en) * | 1996-04-04 | 1997-10-21 | Inax Corp | Manufacture of tile panel |
| JP2000126607A (en) * | 1998-10-26 | 2000-05-09 | Dainippon Printing Co Ltd | Synthetic resin shaped body having photocatalytic function |
| JP2001323188A (en) * | 2000-05-19 | 2001-11-20 | Nisshin Steel Co Ltd | Coating material for forming transparent photocatalytic dispersion film and metallic plate coated with transparent photocatlytic dispersion film |
| JP2001347136A (en) * | 2000-06-09 | 2001-12-18 | Kansai Paint Co Ltd | Inorganic coating material capable of forming photocatalytically activated coating film and method of coating with the same |
| JP2002273234A (en) * | 2001-03-19 | 2002-09-24 | Kawasaki Steel Corp | Method for manufacturing photocatalytic body |
-
2003
- 2003-08-19 JP JP2003295647A patent/JP4576811B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141503A (en) * | 1994-11-28 | 1996-06-04 | Matsushita Electric Works Ltd | Method for forming inorganic coating film |
| JPH08259891A (en) * | 1995-03-24 | 1996-10-08 | Matsushita Electric Works Ltd | Formation of inorganic coating film |
| JPH09273288A (en) * | 1996-04-04 | 1997-10-21 | Inax Corp | Manufacture of tile panel |
| JP2000126607A (en) * | 1998-10-26 | 2000-05-09 | Dainippon Printing Co Ltd | Synthetic resin shaped body having photocatalytic function |
| JP2001323188A (en) * | 2000-05-19 | 2001-11-20 | Nisshin Steel Co Ltd | Coating material for forming transparent photocatalytic dispersion film and metallic plate coated with transparent photocatlytic dispersion film |
| JP2001347136A (en) * | 2000-06-09 | 2001-12-18 | Kansai Paint Co Ltd | Inorganic coating material capable of forming photocatalytically activated coating film and method of coating with the same |
| JP2002273234A (en) * | 2001-03-19 | 2002-09-24 | Kawasaki Steel Corp | Method for manufacturing photocatalytic body |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007262150A (en) * | 2006-03-27 | 2007-10-11 | Ohbayashi Corp | Photocatalyst coating agent and photocatalyst carrier |
| JP2008073664A (en) * | 2006-09-25 | 2008-04-03 | Totsuya Echo:Kk | Coating method giving photodegradation performance and workpiece given photodegradation performance |
| KR100987356B1 (en) * | 2008-05-30 | 2010-10-12 | 충북대학교 산학협력단 | Silicone Hybrid Hard Coating Composition for Platic Substrate Comprising Photocatalyst |
| JP2010163584A (en) * | 2009-01-16 | 2010-07-29 | Kyushu Hi-Tech:Kk | Flexibility-imparting normal temperature curable inorganic coating agent for protection of chemical floor |
| KR20150101151A (en) * | 2014-02-26 | 2015-09-03 | 엘지전자 주식회사 | Coating composition comprising photocatalyst for visible rays and articles comprising same |
| KR102265903B1 (en) | 2014-02-26 | 2021-06-16 | 엘지전자 주식회사 | Coating composition comprising photocatalyst for visible rays and articles comprising same |
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