KR102124251B1 - Methods for coating tungsten oxide on signal lamps of polycarbonate and polycarbonate with tungsten oxide - Google Patents
Methods for coating tungsten oxide on signal lamps of polycarbonate and polycarbonate with tungsten oxide Download PDFInfo
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- KR102124251B1 KR102124251B1 KR1020180095541A KR20180095541A KR102124251B1 KR 102124251 B1 KR102124251 B1 KR 102124251B1 KR 1020180095541 A KR1020180095541 A KR 1020180095541A KR 20180095541 A KR20180095541 A KR 20180095541A KR 102124251 B1 KR102124251 B1 KR 102124251B1
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- tungsten oxide
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- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 82
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 82
- 238000000576 coating method Methods 0.000 title claims abstract description 67
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
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- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910001930 tungsten oxide Inorganic materials 0.000 title claims abstract description 37
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims abstract description 85
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- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 2
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
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- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- PNEHEYIOYAJHPI-UHFFFAOYSA-N lithium tungsten Chemical compound [Li].[W] PNEHEYIOYAJHPI-UHFFFAOYSA-N 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
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- B01J35/39—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/002—Catalysts characterised by their physical properties
- B01J35/004—Photocatalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/142—Pretreatment
- B05D3/144—Pretreatment of polymeric substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/06—Coating with compositions not containing macromolecular substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2518/00—Other type of polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
Abstract
본 발명은 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등에 관한 것이다.
구체적으로, 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 인터칼레이션 방법으로 박리시킨 텅스텐 옥사이드(WO3)를 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시키고,
아울러, 친수성으로 기능기화된 폴리카보네이트를 퍼하이드로실라잔 용액에 신속코팅시켜 실리콘(SiO2) 부착층을 형성하는 한편, 기능기화된 텅스텐 옥사이드(WO3)를 분말화시켜 액상혼합하여 준비된 텅스텐 옥사이드(WO3) 분말 수용액에, 퍼하이드로실라잔 용액에 신속코팅시킨 폴리카보네이트를 코팅시킴으로써,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한, 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법에 관한 것이다.
이러한 텅스텐 옥사이드(WO3)를 신호등에 코팅시킴에 따라 야간에도 광촉매 효과를 갖을 수 있는데, 이는 신호등의 광(光)의 역시 가시광이기 때문에 야간에도 신호등의 광(光)으로 광촉매가 가능할 것으로 기대된다.The present invention relates to a method for coating tungsten oxide on a traffic light made of polycarbonate material and a traffic light made of polycarbonate material coated with tungsten oxide for a visible light photocatalytic reaction.
Specifically, the polycarbonate, which is the surface of the traffic light, is functionalized with hydrophilicity, and the tungsten oxide (WO3) peeled by an intercalation method is functionalized to increase the bondability between polycarbonate and tungsten oxide (WO3),
In addition, a hydrophilic functionalized polycarbonate is quickly coated in a perhydrosilazane solution to form a silicon (SiO 2 ) adhesion layer, while functionalized tungsten oxide (WO3) is powdered to prepare a tungsten oxide prepared by liquid mixing. WO3) By coating the aqueous solution of powder with a polycarbonate rapidly coated in a perhydrosilazane solution,
The present invention relates to a method of coating tungsten oxide on a polycarbonate signal light for a visible light photocatalytic reaction, which can be coated in a large amount faster than conventional coating methods such as dispersion and vapor deposition.
By coating such tungsten oxide (WO3) on a traffic light, it can have a photocatalytic effect even at night. It is expected that the photocatalyst can be used as a light of a traffic light even at night because the light of the traffic light is also visible light.
Description
본 발명은 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등에 관한 것이다.The present invention relates to a method for coating tungsten oxide on a traffic light made of polycarbonate and a traffic light made of polycarbonate material coated with tungsten oxide for a visible light photocatalytic reaction.
종래 광촉매에 관련된 기술들은 자외선(UV)에서 반응하여 광촉매를 발생시키기 때문에, 가시광선이 다량 포함된 일반적인 광(光)에서의 광촉매 반응이 미약한 실정이다.Conventional techniques related to photocatalyst generate photocatalyst by reacting with ultraviolet light (UV), so the photocatalytic reaction in general light containing a large amount of visible light is weak.
이에 따라, 근래에는 가시광선에서 광촉매 반응이 가능한 텅스텐 옥사이드(WO3)를 이용하여 광촉매 반응을 유도하도록 하고 있다.Accordingly, in recent years, photocatalytic reactions are induced by using tungsten oxide (WO3) capable of photocatalytic reaction in visible light.
특히, 본 발명과 같이 신호등에 적용되는 경우, 텅스텐 옥사이드(WO3)가 신호등의 재질인 폴리카보네이트와 결합성이 떨어지기 때문에 신호등 표면에 텅스텐 옥사이드(WO3)를 코팅시켜도 표면에 뭍어나는 정도에 그치는 문제점이 있었고,Particularly, when applied to a traffic light as in the present invention, since tungsten oxide (WO3) is poorly bonded to polycarbonate, which is a material of the traffic light, it is only a problem that it is exposed to the surface even when the surface of the traffic light is coated with tungsten oxide (WO3) There was,
본 발명은, 이러한 문제점을 해결하기 위하여, 첫째 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 둘째 텅스텐 옥사이드(WO3)를 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시키고,In order to solve this problem, the present invention, first functionalizes the polycarbonate surface of the traffic light with hydrophilicity, and second, functionalizes tungsten oxide (WO3) by bovine serum albumin (BSA), polycarbonate and tungsten oxide. (WO3) to increase the binding property,
아울러, 결합성이 상승됨에 따라, 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화된 텅스텐 옥사이드(WO3) 분말 수용액에 폴리카보네이트를 침지시켰다가 빼내는 방법만으로도, 폴리카보네이트에 텅스텐 옥사이드(WO3) 코팅을 신속하게 수행할 수 있으므로,In addition, as the binding property is increased, tungsten oxide (WO3) coating is applied to polycarbonate by immersing and removing polycarbonate in an aqueous solution of tungsten oxide (WO3) powder functionalized with bovine serum albumin (BSA). Can be done quickly,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한, 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법에 관한 것이다.The present invention relates to a method of coating tungsten oxide on a polycarbonate signal light for a visible light photocatalytic reaction, which can be coated in a large amount faster than a conventional coating method such as dispersion and vapor deposition.
이러한 텅스텐 옥사이드(WO3)를 폴리카보네이트 재질의 신호등에 코팅시킴에 따라 야간에도 광촉매 효과를 갖을 수 있는데, 이는 신호등의 광(光) 역시 가시광이기 때문에 야간에도 신호등의 광(光)으로 광촉매가 가능할 것으로 기대된다.By coating the tungsten oxide (WO3) on a polycarbonate signal light, it can have a photocatalytic effect even at night. This is because the light of the traffic light is also visible light. It is expected.
광촉매 반응이란, 광촉매 재질에 빛을 비추었을 때 발생되는 현상으로, 광촉매가 빛을 흡수하여 활성화에너지를 낮추어줌으로써 반응속도를 증가시켜주는 반응을 의미한다.The photocatalytic reaction is a phenomenon that occurs when light is shined on a photocatalyst material, and refers to a reaction that increases the reaction rate by absorbing light and lowering the activation energy by absorbing light.
이러한 광촉매 반응은 광촉매 재질에 빛을 조사하면 결정표면에 생기는 전자가 이탈한 정공이 물 분자와 반응하면서산화력이 매우 큰 하이드록시 라디컬을 형성하여, 각종 세균이나 유기성 오염물질(Voc)의 분해를 유도하는 것으로 알려져 있다.In the photocatalytic reaction, when light is irradiated to the photocatalytic material, electrons released from the crystal surface react with water molecules to form hydroxy radicals having a very high oxidizing power to decompose various bacteria or organic pollutants (Voc). It is known to induce.
특히, 주로 이산화티타늄(TiO2)이 광촉매 재질로 이용되고 있는데, 이러한 이산화티타늄(TiO2)은 자체가 빛을 받아도 변하지 않아 반영구적으로 사용 가능하고, 염소나 오존보다 산화력이 높아 살균력이 뛰어나며, 모든 유기물을 이산화탄소와 물로 분해할 수 있는 능력을 갖고 있어서, 대표적인 광촉매 물질로 사용된다.In particular, titanium dioxide (TiO 2 ) is mainly used as a photocatalyst material. These titanium dioxide (TiO 2 ) can be used semi-permanently because it does not change even when it receives light. It has the ability to decompose organic matter into carbon dioxide and water, so it is used as a representative photocatalytic material.
또한, 이산화티타늄(TiO2)은 광촉매로서 내구성, 내마모성이 우수하고, 그 자체가 안전, 무독물질이며 폐기하여도 2차 공해에 대한 염려가 없다.In addition, titanium dioxide (TiO 2 ) is a photocatalyst and has excellent durability and wear resistance, and is itself a safety and non-toxic material, and there is no concern for secondary pollution even when disposed.
그러나 이산화티타늄(TiO2)은 광촉매 반응이 주로 자외선(UV)에서 이루어지는 것으로 밝혀져 있다.However, titanium dioxide (TiO 2 ) has been found to be mainly photocatalytic reaction in ultraviolet (UV).
즉, 본 발명과 같이 신호등에 대해서 광촉매 반응을 유도하는 경우, 신호등에 조사되는 광(光)에 자외선과 적외선이 포함되어 있더라도 대부분 가시광선인 점으로 미루어 보았을 때, 광촉매 반응의 효과가 신호등 기술분야에서는 활발히 이루어진다고 할 수 없는 것이다.That is, in the case of inducing a photocatalytic reaction to a traffic light as in the present invention, even when ultraviolet light and infrared rays are included in the light irradiated to the traffic light, the effect of the photocatalytic reaction is in the traffic light technology field, considering that it is mostly visible light. It cannot be said to be active.
한편, 텅스텐은 이산화티타늄(TiO2)과 마찬가지로 빛이 조사되었을 때, 광촉매 반응이 발생되는 것으로 알려져 있으며, 가시광선 영역대의 광(光)이 조사되어도 광촉매 반응이 발생되는 것으로 알려져 있다(KISTI 『글로벌동향브리핑(GTB)』 2008-08-05, https://www.pangyotechnovalley.org/html/news/tech_trends_view.asp?no=50417&category=&page=1752&size=10&skey=&sword= 참조).On the other hand, tungsten is known to generate a photocatalytic reaction when light is irradiated, like titanium dioxide (TiO 2 ), and it is known that a photocatalytic reaction occurs even when light in a visible light region is irradiated (KISTI 『Global Trend Briefing (GTB)』 2008-08-05, see https://www.pangyotechnovalley.org/html/news/tech_trends_view.asp?no=50417&category=&page=1752&size=10&skey=&sword=).
그러나, 상기 텅스텐은 신호등의 재질은 폴리카보네이트와 결합성이 저하되는 문제점이 있기 때문에, 결합성을 증진시키기 위해서 다양한 연구가 시행되고 있는 실정이다. 실제로 신호등에 적용하는 기술의 개발은 이루어지지 않고 있다.However, since the tungsten has a problem in that the material of the traffic light is degraded with polycarbonate, various studies have been conducted to improve the bonding. In fact, the technology applied to traffic lights has not been developed.
텅스텐을 가공하여 박막을 이루기 위한 기술에 관련하여, 등록특허공보 제10-1039320호에는 리튬텅스텐산화물 코팅재의 제조방법 및 이를 이용한 일렉트로크로믹 소자의 제조방법이 기재되어 있다.Regarding the technology for forming a thin film by processing tungsten, Patent Publication No. 10-1039320 describes a method for manufacturing a lithium tungsten oxide coating material and a method for manufacturing an electrochromic device using the same.
상기 기술은, 텅스텐(W) 금속분말 또는 텅스텐산(H2WO4) 분말을 과산화수소수에 용해시켜 투명한 텅스텐 용액을 형성하는 단계와, 상기 텅스텐 용액에 함유된 일정량의 물과 과산화수소를 제거하기 위하여 40∼90℃의 온도에서 가열하면서 과산화수소와 물을 증발시켜 WO3·xH2O2·yH2O(005≤x≤10, 05≤y≤10)의 화학식을 갖는 투명한 오렌지색의 퍼록소 텅스텐산을 형성하는 단계와, 상기 퍼록소 텅스텐산을 유기 용매에 용해하여 산화텅스텐 용액을 형성하는 단계와, 상기 산화텅스텐 용액과 혼합될 때 혼합이 잘 일어나고 용액의 분리가 일어나지 않으며 리튬염, 수산화리튬 및 리튬텅스텐의 침전이 일어나지 않는 리튬 소스 용액을 형성하는 단계와, 상기 리튬 소스 용액과 상기 산화텅스텐 용액을 혼합하여 리튬텅스텐산화물(LixWO3)을 형성하는 단계를 포함하며, 상기 리튬텅스텐산화물은 텅스텐에 대한 리튬 이온의 몰비가 01∼1 범위를 이루는 리튬텅스텐산화물 코팅재의 제조방법 및 이를 이용한 일렉트로크로믹 소자의 제조방법에 관한 것이다.In the above technique, a tungsten (W) metal powder or tungsten acid (H2WO4) powder is dissolved in hydrogen peroxide to form a transparent tungsten solution, and 40 to 90 to remove a certain amount of water and hydrogen peroxide contained in the tungsten solution. Evaporating hydrogen peroxide and water while heating at a temperature of ℃ to form a transparent orange peroxung tungstic acid having the formulas WO3xH2O2YH2O (005≤x≤10, 05≤y≤10), and the peroxol Dissolving tungsten acid in an organic solvent to form a tungsten oxide solution, and when mixed with the tungsten oxide solution, mixing occurs well, the separation of the solution does not occur, and lithium salt, lithium hydroxide and lithium tungsten precipitation do not occur Forming a solution, and mixing the lithium source solution and the tungsten oxide solution to form a lithium tungsten oxide (LixWO3), wherein the lithium tungsten oxide has a molar ratio of lithium ions to tungsten in the range of 01 to 1 It relates to a method of manufacturing a lithium tungsten oxide coating material constituting and an electrochromic device using the same.
상기 기술은, 본 출원인이 제안하는 텅스텐을 이용한 코팅방법에 대한 텅스텐의 가공방법이 상이하고, 코팅재를 기재하고 있으므로, 합치, 압축, 부착 등의 공정이 필요함을 암시하고 있어서, 본 출원인이 제안하는 신속 및 다량 코팅에 적합하지 않다.The above technique suggests that the process of tungsten is different from the coating method using tungsten proposed by the present applicant and that a coating material is described, and thus, processes such as matching, compression, and adhesion are required, and the present applicant proposes Not suitable for rapid and high volume coating.
한편, 폴리카보네이트로의 코팅을 위해 상기 폴리카보네이트를 전처리하여 친수성 처리하는 기술을 등록특허공보 제10-1218861호의 대기압 플라즈마를 이용한 합성수지 섬유의 친수성 처리 방법 및 그에 의해 제조된 합성수지 섬유를 기재하고 있다.On the other hand, a technique for hydrophilic treatment by pre-treating the polycarbonate for coating with polycarbonate discloses a method for hydrophilic treatment of synthetic resin fibers using atmospheric plasma of Patent Publication No. 10-1218861 and synthetic resin fibers produced thereby.
상기 기술은, 소수성을 가진 합성수지 섬유 소재로 이루어진 직물에 친수성을 부여하는 코팅을 하여 착용할 때 땀이 차고 정전기가 발생하는 것을 방지하도록 하는 대기압 플라즈마를 이용하여 합성수지 섬유의 친수성 처리 방법 및 친수성 처리된 합성수지 섬유를 제시한다 그 방법 및 섬유는 먼저 합성수지 섬유로 이루어진 소수성 직물을 대기압 플라즈마 장치에 투입한 후, 유기 실록산 소스 가스가 대기압 플라즈마 장치를 거쳐 생성되는 유기실리콘 화합물을 직물의 표면에 도포한 다음, 산화제가스가 대기압 플라즈마 장치를 거쳐 생성되는 산소 플라즈마를 이용하여 유기 실리콘 화합물이 도포된 직물을 표면을 처리한 후, 유기 실록산 소스 가스가 산화제가스의 존재 하에 대기압 플라즈마 장치를 거쳐 생성되는 산화실리콘 화합물을 직물의 표면에 도포하는 과정을 반복하여 적층하는 것이다.The above technique is a synthetic resin fiber hydrophilic treatment method and a hydrophilic treatment method using an atmospheric pressure plasma to prevent sweating and static electricity from being generated when a coating made of a synthetic resin fiber material having hydrophilicity is worn. Synthetic Resin Fibers The method and the fibers are first introduced into a hydrophobic fabric made of synthetic resin fibers into an atmospheric pressure plasma device, and then an organosilicon compound produced by an organosiloxane source gas is passed through an atmospheric pressure plasma device to the surface of the textile, After treating the surface of the fabric coated with the organosilicon compound using an oxygen plasma in which the oxidant gas is generated through the atmospheric pressure plasma device, the organic siloxane source gas is a silicon oxide compound produced through the atmospheric pressure plasma device in the presence of the oxidant gas. The process of applying to the surface of the fabric is repeatedly laminated.
그러나, 상기 기술은 친수성 처리를 위해서 산화실리콘 화합물을 직물의 표면에 도포하는 것을 기재하고 있고,However, the above technique describes applying a silicon oxide compound to the surface of the fabric for hydrophilic treatment,
이는 본 출원인이 제안하고자 하는 본 발명에 기재된, 친수성 처리된 폴리카보네이트를 침지방식으로 코팅시켜 신속하게 다량으로 실리콘 부착층을 형성하는 것과 코팅방식이 다르고, 상기 코팅방식에 따라 갖게되는 효과 역시 상이한 것이다.This is the coating method is different from the method of forming a silicone adhesion layer in a large amount by coating the hydrophilic treated polycarbonate described in the present invention, which the applicant intends to propose, by immersion, and the effect obtained by the coating method is also different. .
본 발명의 목적은, 종래 광촉매에 관련된 기술들은 자외선(UV)에서 반응하여 광촉매를 발생시키기 때문에, 가시광선이 다량 포함된 일반적인 광(光)에서의 광촉매 반응이 미약한 실정에 따라 가시광선에서 광촉매 반응이 가능한 텅스텐 옥사이드(WO3)를 이용하여 광촉매 반응을 유도하도록 하고 있는 근래의 추세에 맞추되,The object of the present invention, because the conventional photocatalytic technology reacts in ultraviolet (UV) to generate a photocatalyst, the photocatalyst in visible light according to a situation where the photocatalytic reaction in general light containing a large amount of visible light is weak According to the recent trend to induce a photocatalytic reaction using tungsten oxide (WO3) capable of reacting,
텅스텐 옥사이드(WO3)가 신호등의 재질인 폴리카보네이트와 결합성이 떨어지기 때문에 폴리카보네이트 재질의 신호등 표면에 텅스텐 옥사이드(WO3)를 코팅시켜도 표면에 뭍어나는 정도에 그치는 문제점이 있는바,Since tungsten oxide (WO3) is poorly bonded to polycarbonate, a material for traffic lights, even if tungsten oxide (WO3) is coated on the surface of a traffic light made of polycarbonate, there is a problem that it is only exposed to the surface.
이러한 문제점을 해결하기 위하여, 첫째 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 둘째 텅스텐 옥사이드(WO3)를 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시키고,To solve this problem, first, polycarbonate, which is the surface of the traffic light, is functionalized with hydrophilicity, and second, tungsten oxide (WO3) is functionalized with bovine serum albumin (BSA), thereby allowing polycarbonate and tungsten oxide (WO3) to function. Increase the binding property,
아울러, 결합성이 상승됨에 따라, 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화된 텅스텐 옥사이드(WO3) 분말 수용액에 폴리카보네이트를 침지시켰다가 빼내는 방법만으로도, 폴리카보네이트에 텅스텐 옥사이드(WO3) 코팅을 신속하게 수행할 수 있으므로,In addition, as the binding property is increased, tungsten oxide (WO3) coating is applied to polycarbonate by immersing and removing polycarbonate in an aqueous solution of tungsten oxide (WO3) powder functionalized with bovine serum albumin (BSA). Can be done quickly,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한, 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등을 제공하는데 있다.Provided is a method for coating tungsten oxide on a traffic light made of polycarbonate material for a visible light photocatalytic reaction, and a traffic light made of polycarbonate material coated with tungsten oxide, which can be coated in a large amount faster than conventional coating methods such as dispersion and vapor deposition. .
상술된 문제점을 해결하기 위하여 착안된 것으로 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법은, O2 플라즈마 처리 단계, SiO2 부착층 형성단계, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계 및 신속 코팅단계를 포함하고, 상기 텅스텐 옥사이드(WO3) 분말 수용액 제조단계는, 탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin, BSA)을 용해시키는 단계; 텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계; 상기 탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin ,BSA)을 용해시키는 단계 및 텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계까지 모두 완료된 뒤 수행되는, 용해액에 텅스텐 옥사이드(WO3) 분말을 혼합하여 혼합액으로 준비하는 단계; 및 상기 용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계에서 준비된 혼합액에 음파를 인가하여 음파처리(sonication)를 수행하는 단계;를 포함하여 이루어지는 것을 특징으로 한다.In order to solve the above-mentioned problems, a method of coating tungsten oxide on a polycarbonate traffic light for a visible light photocatalytic reaction according to the present invention includes: O 2 plasma treatment step, SiO 2 adhesion layer formation step, tungsten oxide ( WO3) including a powder aqueous solution preparation step and a rapid coating step, wherein the tungsten oxide (WO3) powder aqueous solution preparation step comprises: dissolving bovine serum albumin (BSA) in di-water; Crushing tungsten oxide (WO3) to prepare a powder; The step of dissolving bovine serum albumin (BSA) in de-ionized water (Di-water) and pulverizing tungsten oxide (WO3) are all performed after completion of the process to prepare a powder, tungsten oxide ( WO3) preparing the mixture by mixing the powder; And applying sound waves to the prepared mixed solution in a step of preparing the mixed solution by containing tungsten oxide (WO 3) powder in the dissolved solution, and performing sonication.
또한, 상기 O2 플라즈마 처리 단계에서, 폴리카보네이트에 O2 플라즈마 처리를 하여 폴리카보네이트의 표면을 친수성으로 기능기화하는 것을 특징으로 한다.In addition, in the O 2 plasma treatment step, the surface of the polycarbonate is functionalized with hydrophilicity by subjecting the polycarbonate to an O 2 plasma treatment.
또한, SiO2 부착층 형성단계에서는, 상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 침지(dip) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 한다.In addition, in the SiO 2 adhesion layer forming step, the SiO 2 adhesion layer is formed by dip coating the polycarbonate treated in the O 2 plasma treatment step in a perhydropolysilizane solution.
또한, SiO2 부착층 형성단계에서는, 상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 바(bar) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 한다.In addition, in the step of forming the SiO 2 adhesion layer, the polycarbonate treated in the O 2 plasma treatment step is characterized in that the SiO 2 adhesion layer is formed through a bar coating method on the perhydropolysilizane solution.
또한, 상기 신속 코팅단계는, SiO2 부착층 형성단계에서 SiO2 부착층이 형성된 폴리카보네이트와, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계에서 제조된 텅스텐 옥사이드(WO3) 분말 수용액을 이용하여 코팅을 수행하는 것을 특징으로 한다.In addition, the rapid coating step, by using a polycarbonate, and a tungsten oxide (WO3) tungsten oxide (WO3) powder, an aqueous solution prepared from the powder to prepare an aqueous solution phase having a SiO 2 adhesion layer on the SiO 2 adhesion layer forming step performs a coating It is characterized by.
또한, 상기 소혈청알부민(Bovine Serum Albumin ,BSA)은, pH 4의 산성도를 갖는 것을 특징으로 한다.
In addition, the bovine serum albumin (BSA) is characterized by having an acidity of
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또한, 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등은 상기 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방에 의해 코팅된 것을 특징으로 한다.In addition, the traffic light of polycarbonate material coated with tungsten oxide is characterized by being coated by a room for coating tungsten oxide on the traffic light of polycarbonate material.
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본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등에 의하면 다음의 효과를 갖는다.According to the method for coating tungsten oxide on a traffic light made of polycarbonate material and a traffic light made of polycarbonate material coated with tungsten oxide for the visible light photocatalytic reaction according to the present invention has the following effects.
① 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 텅스텐 옥사이드(WO3)를 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시킬 수 있다.① Polycarbonate, which is the surface of traffic lights, is functionalized with hydrophilicity, and tungsten oxide (WO3) is functionalized by bovine serum albumin (BSA), thereby increasing the bondability between polycarbonate and tungsten oxide (WO3).
② 이러한 효과로 인해, 결합성이 상승됨에 따라, 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화된 텅스텐 옥사이드(WO3) 분말 수용액에 폴리카보네이트를 침지시켰다가 빼내는 방법만으로도, 폴리카보네이트에 텅스텐 옥사이드(WO3) 코팅을 신속하게 수행할 수 있으므로,② Due to this effect, as the binding property is increased, bovine serum albumin (BSA) functionalized tungsten oxide (WO3) powder is immersed in polycarbonate and then removed, polycarbonate tungsten oxide ( WO3) Since coating can be carried out quickly,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한 효과를 갖는다.It has the effect of being able to coat in large quantities faster than conventional coating methods such as dispersion and vapor deposition.
도 1은 본 발명에 따른 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법을 나타낸 흐름도이다.
도 2는 본 발명에 따른 소혈청알부민(Bovine Serum Albumin, BSA)와 텅스텐 옥사이드(WO3)의 제타 전위 실험결과를 나타낸 것이다.
도 3은 본 발명에 따른 텅스텐 옥사이드(WO3)의 시간별 메틸렌 블루의 분해 실험결과를 나타낸 것이다.
도 4는 본 발명에 따른 텅스텐 옥사이드(WO3)의 가공별 광촉매 특성 실험결과를 나타낸 것이다.1 is a flowchart showing a method of coating tungsten oxide on a traffic light of polycarbonate material according to the present invention.
Figure 2 shows the results of the zeta potential experiment of bovine serum albumin (Bovine Serum Albumin, BSA) and tungsten oxide (WO3) according to the present invention.
Figure 3 shows the decomposition experiment results of methylene blue over time of tungsten oxide (WO3) according to the present invention.
Figure 4 shows the experimental results of photocatalytic properties of each tungsten oxide (WO3) according to the present invention.
본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 안되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor can appropriately define the concept of terms in order to describe his or her invention in the best way. Based on the principles, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.
따라서 본 명세서에 기재된 실시 예와 도면에 도시된 사항은 본 발명의 가장 바람직한 실시 예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the examples shown in the embodiments and drawings described herein are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be and variations.
이하, 도면을 참조하여 설명하기에 앞서, 본 발명의 요지를 드러내기 위해서 필요하지 않은 사항 즉 통상의 지식을 가진 당업자가 자명하게 부가할 수 있는 공지 구성에 대해서는 도시하지 않거나, 구체적으로 기술하지 않았음을 밝혀둔다.Hereinafter, prior to the description with reference to the drawings, not necessary for revealing the gist of the present invention, that is, a well-known configuration that can be added by those skilled in the art will not be shown or not specifically described Well, reveal the notes.
본 발명은 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법 및 텅스텐 옥사이드가 코팅된 폴리카보네이트 재질의 신호등에 관한 것이다.The present invention relates to a method for coating tungsten oxide on a traffic light made of polycarbonate material and a traffic light made of polycarbonate material coated with tungsten oxide for a visible light photocatalytic reaction.
종래 광촉매에 관련된 기술들은 자외선(UV)에서 반응하여 광촉매를 발생시키기 때문에, 가시광선이 다량 포함된 일반적인 광(光)에서의 광촉매 반응이 미약한 실정이다.Conventional techniques related to photocatalyst generate photocatalyst by reacting with ultraviolet light (UV), so the photocatalytic reaction in general light containing a large amount of visible light is weak.
이에 따라, 근래에는 가시광선에서 광촉매 반응이 가능한 텅스텐 옥사이드(WO3)를 이용하여 광촉매 반응을 유도하도록 하고 있다.Accordingly, in recent years, photocatalytic reactions are induced by using tungsten oxide (WO3) capable of photocatalytic reaction in visible light.
특히, 본 발명과 같이 신호등에 적용되는 경우, 텅스텐 옥사이드(WO3)가 신호등의 재질인 폴리카보네이트와 결합성이 떨어지기 때문에 폴리카보네이트 재질의 신호등 표면에 텅스텐 옥사이드(WO3)를 코팅시켜도 표면에 뭍어나는 정도에 그치는 문제점이 있었고,In particular, when applied to a traffic light as in the present invention, tungsten oxide (WO3) is poorly bonded to polycarbonate, which is a material for traffic lights, so even if tungsten oxide (WO3) is coated on the surface of a traffic light made of polycarbonate, it will stick to the surface. There was a problem that was limited to the degree,
본 발명은, 이러한 문제점을 해결하기 위하여, 첫째 신호등 표면인 폴리카보네이트를 친수성으로 기능기화시키고, 둘째 텅스텐 옥사이드(WO3)를 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화시킴으로써, 폴리카보네이트와 텅스텐 옥사이드(WO3)의 결합성을 상승시키고,In order to solve this problem, the present invention, first functionalizes the polycarbonate surface of the traffic light with hydrophilicity, and second, functionalizes tungsten oxide (WO3) by bovine serum albumin (BSA), polycarbonate and tungsten oxide. (WO3) to increase the binding property,
아울러, 결합성이 상승됨에 따라, 소혈청알부민(Bovine Serum Albumin, BSA) 기능기화된 텅스텐 옥사이드(WO3) 분말 수용액에 폴리카보네이트를 침지시켰다가 빼내는 방법만으로도, 폴리카보네이트에 텅스텐 옥사이드(WO3) 코팅을 신속하게 수행할 수 있으므로,In addition, as the binding property is increased, tungsten oxide (WO3) coating is applied to polycarbonate by immersing and removing polycarbonate in an aqueous solution of tungsten oxide (WO3) powder functionalized with bovine serum albumin (BSA). Can be done quickly,
종래 분산, 증착 등의 코팅방법에 비해서 신속하게 다량으로 코팅 가능한, 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅 방법에 관한 것이다.The present invention relates to a method of coating tungsten oxide (WO3) on a polycarbonate signal light for a visible light photocatalytic reaction, which can be coated in a large amount quickly compared to a conventional coating method such as dispersion and vapor deposition.
이러한 본 발명은 첨부된 도면의 도 1을 참조하면 다음과 같이 이루어진다.This invention is made as follows with reference to FIG. 1 of the accompanying drawings.
도 1은 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법을 나타낸 흐름도이다.1 is a flowchart illustrating a method of coating tungsten oxide (WO3) on a traffic light made of polycarbonate for a visible light photocatalytic reaction according to the present invention.
첨부된 도면의 도 1을 참조하면, 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법은 ① O2 플라즈마 처리 단계, ② SiO2 부착층 형성단계, ③ 텅스텐 옥사이드(WO3) 분말 수용액 제조단계 및 ④ 신속 코팅단계를 포함하여 이루어진다.Referring to FIG. 1 of the accompanying drawings, a method of coating tungsten oxide (WO3) on a traffic light of polycarbonate material for a visible light photocatalytic reaction according to the present invention is: ① O 2 plasma treatment step, ② SiO 2 adhesion layer formation step , ③ tungsten oxide (WO3) powder aqueous solution manufacturing step and ④ rapid coating step.
① O 2 플라즈마 처리 단계 ① O 2 Plasma treatment step
O2 플라즈마 처리 단계는, 폴리카보네이트에 O2 플라즈마 처리를 하여 표면을 친수성으로 기능기화하는 단계이다.The O 2 plasma treatment step is a step of functionalizing the surface with hydrophilicity by subjecting the polycarbonate to an O 2 plasma treatment.
이때, O2 플라즈마 처리는 종래 산소 플라즈마를 이용하는 것으로서, 폴리카보네이트 표면의 불순물과 이물질을 제거하고, 폴리카보네이트의 표면이 친수성이 될 수 있도록 한다.At this time, the O 2 plasma treatment uses a conventional oxygen plasma to remove impurities and foreign substances on the surface of the polycarbonate, and allows the surface of the polycarbonate to become hydrophilic.
② SiO 2 부착층 형성단계 ② SiO 2 Attachment layer formation step
SiO2 부착층 형성단계는, O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 침지(dip) 코팅방법을 통해 SiO2 부착층(adhesive layer)을 형성하는 단계이다.The SiO 2 adhesion layer forming step is a step of forming an SiO 2 adhesive layer through a dip coating method of the polycarbonate treated in the O 2 plasma treatment step in a perhydropolysilizane solution.
이러한 SiO2 부착층 형성단계에서 퍼하이드로폴리실리잔 용액에 침지되는 폴리카보네이트는, O2 플라즈마 처리 단계에서 친수성 기능기화가 되었기 때문에, 퍼하이드로폴리실리잔 용액에 침지되었을 때, 반응이 우수해져 SiO2 부착층의 형성이 용이하게 된다.Since the polycarbonate immersed in the perhydropolysilizane solution in the step of forming the SiO 2 adhesion layer became hydrophilic functionalized in the O 2 plasma treatment step, the reaction became excellent when immersed in the perhydropolysilizane solution, resulting in SiO 2 The formation of the adhesion layer becomes easy.
이러한 SiO2 부착층이 형성된 폴리카보네이트를 이하에서는 '가공된 폴리카보네이트'로 지칭한다.The polycarbonate on which the SiO 2 adhesion layer is formed is hereinafter referred to as “processed polycarbonate”.
다만, 코팅방법은 침지(dip) 코팅방법 외에 바(bar) 코팅방법을 적용할 수도 있고, 이는 상기 코팅방법들이 신속하고 대량 코팅이 가능한 이점을 갖기 때문에 수행되는 것으로, 종래 분산 또는 증착 코팅 방법에 비하여, 빠르게 다량의 코팅이 가능한 장점이 있다.However, the coating method may be applied to a bar coating method in addition to a dip coating method, which is performed because the coating methods have the advantage of being capable of rapid and mass coating. In comparison, there is an advantage that a large amount of coating is possible quickly.
③ 텅스텐 옥사이드(WO3) 분말 수용액 제조단계 ③ Tungsten oxide (WO3) powder aqueous solution manufacturing step
텅스텐 옥사이드(WO3) 분말 수용액 제조단계는, 텅스텐 옥사이드(WO3) 분말이 함유된 수용액을 제조하는 단계이다. 이러한 텅스텐 옥사이드(WO3) 분말 수용액 제조단계는 다음을 포함한다.The tungsten oxide (WO3) powder aqueous solution production step is a step of preparing an aqueous solution containing tungsten oxide (WO3) powder. The tungsten oxide (WO3) powder aqueous solution preparation step includes the following.
㉠ 탈이온수(Di-water)에 소혈청알부민을 용해시킨 용해액을 준비하는 단계㉠ Preparing a lysis solution in which bovine serum albumin is dissolved in di-water
탈이온수(Di-water)에 소혈청알부민을 용해시킨 용해액을 준비하는 단계는, 탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin, BSA)을 용해시키는 단계이다.The step of preparing a lysate in which bovine serum albumin is dissolved in di-water is a step in which bovine serum albumin (BSA) is dissolved in di-water.
이때, 소혈청알부민(Bovine Serum Albumin, BSA)은 pH 4 산성도를 갖는 것을 사용한다.In this case, bovine serum albumin (BSA) having a pH of 4 is used.
이에 대하여, 아래의 실험예 1과 같이 소혈청알부민(Bovine Serum Albumin, BSA)의 산성도 별 텅스텐 옥사이드(WO3)와의 제타 전위(Zeta potential) 실험을 수행한 결과를 참조할 수 있다.On the other hand, as in Experimental Example 1 below, the results of the zeta potential experiment with tungsten oxide (WO3) for each acidity of bovine serum albumin (BSA) can be referred to.
실험예 1. 소혈청알부민(Bovine Serum Albumin, BSA)와 텅스텐 옥사이드(WO3)의 제타 전위 실험Experimental Example 1. Zeta potential experiment of bovine serum albumin (BSA) and tungsten oxide (WO3)
실험방법은, 일반적인 제타 전위를 실험하는 방법을 사용하였다.As the experimental method, a method of testing a general zeta potential was used.
도 2를 참조하면, 실험예 1에 따른 실험결과를 알 수 있는데, 도 2는 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법에서 소혈청알부민(Bovine Serum Albumin, BSA)와 텅스텐 옥사이드(WO3)의 제타 전위(Zeta potential) 실험결과를 나타낸 것이다.Referring to Figure 2, it can be seen the experimental results according to Experimental Example 1, Figure 2 is a small serum albumin in a method of coating tungsten oxide (WO3) on a polycarbonate traffic light for the visible light photocatalytic reaction according to the present invention (Bovine Serum Albumin, BSA) and the zeta potential of tungsten oxide (WO3).
첨부된 도면의 도 2를 참조하면, pH 산성도에 따른 소혈청알부민(Bovine Serum Albumin, BSA)와 텅스텐 옥사이드(WO3)의 제타 전위(Zeta potential) 값을 나타내고 있다.Referring to FIG. 2 of the accompanying drawings, zeta potential values of bovine serum albumin (BSA) and tungsten oxide (WO3) according to pH acidity are shown.
도 2에서와 같이, pH 4의 산성도에서 소혈청알부민(Bovine Serum Albumin, BSA)는 제타 전위가 양의 값이고, 텅스텐 옥사이드(WO3)는 제타 전위(Zeta potential)가 음의 값이기 때문에, 상호 간의 결합이 용이함을 알 수 있었다.As shown in FIG. 2, bovine serum albumin (BSA) at
따라서, 소혈청알부민(Bovine Serum Albumin, BSA)의 산성도는 pH 4의 산성도가 바람직하며, 추후 음파처리를 통한 박리와 동시에 기능기화가 가능한 것을 알 수 있었다.Therefore, it was found that the acidity of bovine serum albumin (BSA) is preferably an acidity of
㉡ 텅스텐 옥사이드(WO3) 분말을 제조하는 단계㉡ Preparation of tungsten oxide (WO3) powder
텅스텐 옥사이드(WO3) 분말을 제조하는 단계는, 텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계이다.The step of preparing the tungsten oxide (WO3) powder is a step of grinding the tungsten oxide (WO3) into a powder.
㉢ 용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계㉢ Preparing a mixed solution by containing tungsten oxide (WO3) powder in the dissolved solution
용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계는, 탈이온수(Di-water)에 소혈청알부민을 용해시킨 용해액을 준비하는 단계 및 텅스텐 옥사이드(WO3) 분말을 제조하는 단계까지 모두 완료된 뒤 수행되는 단계로서, 용해액에 텅스텐 옥사이드(WO3) 분말을 혼합하여 혼합액으로 준비하는 단계이다.The step of preparing the mixed solution by containing the tungsten oxide (WO3) powder in the lysate, preparing the lysate in which bovine serum albumin is dissolved in di-water and preparing the tungsten oxide (WO3) powder This is a step performed after all of the steps are completed, and is a step of preparing a mixed solution by mixing tungsten oxide (WO3) powder with a dissolved solution.
이러한 단계는, 소정의 수조에서 수행될 수 있다.This step can be performed in a given water tank.
㉣ 혼합액에 음파처리(sonication)를 수행하는 단계단계 Performing sonication on the mixed solution
혼합액에 음파처리(sonication)를 수행하는 단계는, 용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계에서 준비된 혼합액에 음파를 인가하여 24시간 동안 음파처리(sonication)를 수행하는 단계이다.In the step of performing sonication in the mixed solution, in the step of preparing the mixed solution by containing tungsten oxide (WO3) powder in the dissolved solution, applying sound waves to the prepared mixed solution to perform sonication for 24 hours to be.
이때, 음파의 인가는 소정의 수조 내에서 수행될 수 있다.At this time, the application of sound waves may be performed in a predetermined water tank.
④ 신속 코팅단계 ④ Rapid coating step
신속 코팅단계는, SiO2 부착층 형성단계로 형성된 가공된 폴리카보네이트와, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계에서 제조된 텅스텐 옥사이드(WO3) 분말 수용액을 이용하여 코팅을 수행하는 단계이다.The rapid coating step is a step of performing coating using the processed polycarbonate formed by the SiO 2 adhesion layer forming step and the tungsten oxide (WO3) powder aqueous solution prepared in the tungsten oxide (WO3) powder aqueous solution manufacturing step.
이때, 코팅은 침지(dip) 코팅방법을 이용함으로써, 가공된 폴리카보네이트에 텅스텐 옥사이드(WO3)를 코팅할 때, 침지만으로 신속하게 코팅하되, 이에 따라 다량의 코팅이 가능하도록 하기 위함이다.At this time, the coating is by using a dip coating method, when coating tungsten oxide (WO3) on the processed polycarbonate, it is to be coated quickly with only immersion, thereby enabling a large amount of coating.
이때, 신속의 정의는, 종래 분산 또는 분포방식과 같이 노즐을 이용하여 분포하고 건조하는 등의 방식이나, 증착방식과 같이 합지와 압축하는 등의 방식에 비교하였을 때, 단순히 침지시키고 건조시키는 방식이 통상의 기술자라면 누구라도 신속한 것임을 이해할 수 있으므로, 그 의미가 명확하다고 할 수 있다.At this time, the definition of rapidity is a method of simply immersing and drying when compared to a method of distributing and drying using a nozzle such as a conventional dispersion or distribution method, or a method of laminating and compressing as a deposition method. Any person skilled in the art can understand that it is fast, so it can be said that the meaning is clear.
또한, 통상의 기술자가 이해할 수 있다고 하더라도, 종래 코팅방법에서 단순 침지로만 공정을 변경한 것이 아니라, 침지를 위해 텅스텐 옥사이드(WO3)와 폴리카보네이트 각각에 기능기화 공정 등을 고려하는 것이므로, 당업자에 의해 쉽게 발명될 수 있는 것으로 판단되어서는 안된다.In addition, even if a person skilled in the art can understand, the conventional coating method does not only change the process to simple immersion, but considers the functionalization process, etc. for each of tungsten oxide (WO3) and polycarbonate for immersion. It should not be judged that it can be easily invented.
다만, 코팅방법은 침지(dip) 코팅방법 외에 바(bar) 코팅방법을 적용할 수도 있고, 이는 상기 코팅방법들이 신속하고 대량 코팅이 가능한 이점을 갖기 때문에 수행되는 것으로, 종래 분산 또는 증착 코팅 방법에 비하여, 빠르게 다량의 코팅이 가능한 장점이 있다.However, the coating method may be applied to a bar coating method in addition to a dip coating method, which is performed because the coating methods have the advantage of being capable of rapid and mass coating. In comparison, there is an advantage that a large amount of coating is possible quickly.
실험예 2. 텅스텐 옥사이드(WO3)의 광촉매 특성 평가Experimental Example 2. Evaluation of photocatalytic properties of tungsten oxide (WO3)
실험예 2는 본 발명에 따른 제조된 텅스텐 옥사이드(WO3)를 550nm의 가시광을 조사하여 메틸렌 블루가 분해되는 것을 평가하였다.Experimental Example 2 evaluated that the methylene blue was decomposed by irradiating 550 nm of visible light with the prepared tungsten oxide (WO 3) according to the present invention.
이러한 실험결과는 첨부된 도면의 도 3을 참조할 수 있는데, 도 3은 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법에서 텅스텐 옥사이드(WO3)의 시간별 메틸렌 블루의 분해 실험결과를 나타낸 것이다.The results of these experiments can be referred to FIG. 3 of the accompanying drawings. FIG. 3 is a tungsten oxide (WO3) in a method of coating tungsten oxide (WO3) on a traffic light of polycarbonate material for a visible light photocatalytic reaction according to the present invention. It shows the results of the decomposition experiment of methylene blue over time.
첨부된 도면의 도 3에 따르면, 1일차 및 2일차에는 메틸렌 블루의 분해가 대체로 이루어지지 않았으나, 시간이 계속 지남에 따라 텅스텐 옥사이드(WO3)의 광촉매 특성으로 인해 메틸렌 블루가 분해되는 것으로 확인되었다.According to FIG. 3 of the accompanying drawings, the decomposition of methylene blue was not generally performed on the first and second days, but it was confirmed that methylene blue decomposed due to the photocatalytic property of tungsten oxide (WO3) as time continued.
즉, 시간의 경과에 따라 텅스텐 옥사이드(WO3)가 가시광 영역에서 광촉매 특성이 활발히 일어남을 확인할 수 있었다.That is, it was confirmed that the photocatalytic properties of tungsten oxide (WO3) in the visible light region were actively increased over time.
실험예 3. 텅스텐 옥사이드(WO3) 가공별 광촉매 분해 특성 평가Experimental Example 3. Evaluation of photocatalytic decomposition characteristics by tungsten oxide (WO3) processing
텅스텐 옥사이드(WO3) 가공별 광촉매 분해 특성 평가의 결과는 첨부된 도면의 도 4를 참조할 수 있다.As a result of evaluating the photocatalytic decomposition characteristics for each tungsten oxide (WO 3) process, refer to FIG. 4 of the accompanying drawings.
도 4는 본 발명에 따른 가시광선 광촉매 반응을 위해 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드(WO3)를 코팅하는 방법에서 텅스텐 옥사이드(WO3)의 가공별 광촉매 특성 실험결과를 나타낸 것이다.Figure 4 shows the results of the photocatalytic properties test by processing of tungsten oxide (WO3) in a method of coating tungsten oxide (WO3) on a traffic light made of polycarbonate for the visible light photocatalytic reaction according to the present invention.
본 실험예인 실험예 3은 (a) 본 발명에 따른 텅스텐 옥사이드(WO3) 분말 수용액 제조단계에서 텅스텐 옥사이드를 사용하지 않은 것(Wothout WO3), (b) 종래 텅스텐 옥사이드 분말(WO3 powder), (c) 음파처리를 통해 박리하지 않은 텅스텐 옥사이드 분말(Non-exfoliated) 및 (d) 본 발명에 따른 텅스텐 옥사이드(WO3 nanosheets)를 대상으로 광촉매 분해 특성을 평가하였다.Experimental Example 3, which is the present experimental example, (a) does not use tungsten oxide in the tungsten oxide (WO3) powder aqueous solution preparation step according to the present invention (Wothout WO3), (b) conventional tungsten oxide powder (WO3 powder), (c ) The photocatalytic decomposition properties of the tungsten oxide powder (Non-exfoliated) and (d) tungsten oxide (WO3 nanosheets) according to the present invention were not evaluated through the sonic treatment.
그 결과, 첨부된 도면의 도 4를 참조하면, (d)군인 본 발명에 따른 텅스텐 옥사이드(WO3 nanosheets)에서 광촉매 분해 특성이 향상된 것을 확인할 수 있었다.As a result, referring to FIG. 4 of the accompanying drawings, it was confirmed that the photocatalytic decomposition properties were improved in the tungsten oxide (WO3 nanosheets) according to the present invention (d) group.
상기에서 도면을 이용하여 서술한 것은, 본 발명의 주요 사항만을 서술한 것으로, 그 기술적 범위 내에서 다양한 설계가 가능한 만큼, 본 발명이 도면의 구성에 한정되는 것이 아님은 자명하다.It is obvious that the above description using the drawings is only the main points of the present invention, and that the present invention is not limited to the configuration of the drawings, as various designs are possible within the technical scope.
Claims (7)
상기 방법은, O2 플라즈마 처리 단계, SiO2 부착층 형성단계, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계 및 신속 코팅단계를 포함하고,
상기 텅스텐 옥사이드(WO3) 분말 수용액 제조단계는,
탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin ,BSA)을 용해시키는 단계;
텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계;
상기 탈이온수(Di-water)에 소혈청알부민(Bovine Serum Albumin ,BSA)을 용해시키는 단계 및 텅스텐 옥사이드(WO3)를 분쇄시켜 분말로 제조하는 단계까지 모두 완료된 뒤 수행되는, 용해액에 텅스텐 옥사이드(WO3) 분말을 혼합하여 혼합액으로 준비하는 단계; 및
상기 용해액에 텅스텐 옥사이드(WO3) 분말을 함유시켜 혼합액을 준비하는 단계에서 준비된 혼합액에 음파를 인가하여 음파처리(sonication)를 수행하는 단계;를 포함하여 이루어지는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
In a method of coating tungsten oxide (WO3) on a traffic light made of polycarbonate for visible light photocatalytic reaction,
The method includes an O 2 plasma treatment step, a SiO 2 adhesion layer forming step, a tungsten oxide (WO 3) powder aqueous solution preparation step, and a rapid coating step,
The tungsten oxide (WO3) powder aqueous solution production step,
Dissolving bovine serum albumin (BSA) in de-ionized water (Di-water);
Crushing tungsten oxide (WO3) to prepare a powder;
The step of dissolving bovine serum albumin (BSA) in de-ionized water (Di-water) and pulverizing tungsten oxide (WO3) are all performed after completion of the process to prepare a powder, tungsten oxide ( WO3) preparing the mixture by mixing the powder; And
Characterized in that it comprises, comprising: a step of performing a sonication (sonication) by applying sound waves to the prepared mixed solution in the step of preparing the mixed solution containing tungsten oxide (WO3) powder in the solution; To coat tungsten oxide on.
상기 O2 플라즈마 처리 단계에서,
폴리카보네이트에 O2 플라즈마 처리를 하여 폴리카보네이트의 표면을 친수성으로 기능기화하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
The method according to claim 1,
In the O 2 plasma treatment step,
A method of coating tungsten oxide on a traffic light of polycarbonate material, characterized in that the surface of the polycarbonate is functionalized with hydrophilicity by subjecting the polycarbonate to an O 2 plasma treatment.
SiO2 부착층 형성단계에서는,
상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 침지(dip) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
The method according to claim 2,
In the step of forming the SiO 2 adhesion layer,
Coating the tungsten oxide to a traffic light of polycarbonate material, characterized in that the polycarbonate treated in the O 2 plasma treatment step is formed in a perhydropolysilizane solution through a dip coating method to form an SiO 2 adhesion layer. Way.
SiO2 부착층 형성단계에서는,
상기 O2 플라즈마 처리 단계에서 처리된 폴리카보네이트를 퍼하이드로폴리실리잔 용액에 바(bar) 코팅방법을 통해 SiO2 부착층을 형성하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
The method according to claim 2,
In the step of forming the SiO 2 adhesion layer,
Coating the tungsten oxide on the traffic light of polycarbonate material, characterized in that the polycarbonate treated in the O 2 plasma treatment step is formed on a perhydropolysilizane solution through a bar coating method to form an SiO 2 adhesion layer. Way.
상기 신속 코팅단계는,
SiO2 부착층 형성단계에서 SiO2 부착층이 형성된 폴리카보네이트와, 텅스텐 옥사이드(WO3) 분말 수용액 제조단계에서 제조된 텅스텐 옥사이드(WO3) 분말 수용액을 이용하여 코팅을 수행하는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
The method according to claim 3,
The rapid coating step,
By using a polycarbonate, and a tungsten oxide (WO3) tungsten oxide (WO3) powder, an aqueous solution prepared from the powder to prepare an aqueous solution phase having a SiO 2 adhesion layer on the SiO 2 adhesion layer forming step, characterized in that to perform the coating, polycarbonate How to coat tungsten oxide on traffic lights of material.
상기 소혈청알부민(Bovine Serum Albumin ,BSA)은,
pH 4의 산성도를 갖는 것을 특징으로 하는, 폴리카보네이트 재질의 신호등에 텅스텐 옥사이드를 코팅하는 방법.
The method according to claim 1,
The bovine serum albumin (Bovine Serum Albumin, BSA),
A method of coating tungsten oxide on a traffic light made of polycarbonate, characterized in that it has an acidity of pH 4.
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