KR102201165B1 - Photocatalytic self-cleaning anti-fingerprint coating solution, the manufacturing method thereof and the coating method using the coating solution - Google Patents
Photocatalytic self-cleaning anti-fingerprint coating solution, the manufacturing method thereof and the coating method using the coating solution Download PDFInfo
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 81
- 239000006116 anti-fingerprint coating Substances 0.000 title claims abstract description 74
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
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- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 120
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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- B01J35/004—
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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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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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
- 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
- B05D3/02—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 baking
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- 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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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
본 발명은 TiO2를 포함하는 자기 세정 내지문성 코팅용액을 쉽게 빠르게 제작할 수 있도록 하며, 표면에 묻은 지문을 신속하게 완벽하게 제거하면서도, 코팅의 손상 없이 용액 내에서 유기물 분해를 수행하는 광촉매 자기세정 내지문성 코팅용액, 그 제조 방법 및 상기 코팅 용액을 이용한 코팅 방법을 제공하는 것을 목적으로 한다.
상술한 기술적 과제의 해결을 이한 본 발명의 일 실시예는, 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 입자가 균일하게 분산된 TiO2 나노 입자 현탁액에, 바인더로서의 TiO2 졸이 혼합된 광촉매 자기세정 내지문성 코팅용액을 제공한다.The present invention makes it possible to easily and quickly produce a self-cleaning anti-fingerprint coating solution containing TiO 2 , and while quickly and completely removing fingerprints on the surface, a photocatalytic self-cleaning or performing decomposition of organic matter in the solution without damaging the coating It is an object of the present invention to provide a Munsung coating solution, a method for preparing the same, and a coating method using the coating solution.
According to an embodiment of the present invention, which solves the above-described technical problem, a TiO 2 nanoparticle suspension in which 2 wt% to 10 wt% of TiO 2 nanoparticles are uniformly dispersed relative to a solvent is mixed with a TiO 2 sol as a binder. It provides a photocatalytic self-cleaning anti-fingerprint coating solution.
Description
본 발명은 광촉매 자기세정 내지문성 코팅용액에 관한 것으로서, 더욱 상세하게는, TiO2에 의한 기름의 광분해 작용에 의해 코팅 표면의 유기물을 분해하여 제거하는 것에 코팅 표면의 지문을 자기세정에 의해 제거할 수 있도록 하는 광촉매 자기세정 내지문성 코팅용액, 그 제조 방법 및 상기 코팅 용액을 이용한 코팅 방법에 관한 것이다.The present invention relates to a photocatalytic self-cleaning anti-fingerprint coating solution, and more particularly, by decomposing and removing organic matter on the coating surface by photolysis of oil by TiO 2 , fingerprints on the coating surface can be removed by self-cleaning. It relates to a photocatalyst self-cleaning anti-fingerprint coating solution, a method of manufacturing the same, and a coating method using the coating solution.
일반적으로, 휴대폰의 디스플레이, OLED 등의 평면 TV 등의 전면에 부착되는 투명 기판은, 화질의 손상 방지를 위한 내지문성 특성에 대한 요구가 높아지고 있다. 이외에도 유리창 등에서 시인성 확보를 위해 내지문 특성에 대한 요구가 높아지고 있다. 또한, 도어락 등의 다양한 지문인식 장치에서는 지문 정보의 유출이나 보안성을 높이기 위하여 지문인식 과정에서 지문 스캔창에 형성된 지문이 빠른 시간 내에 제거될 필요성이 높아지고 있다.In general, a transparent substrate attached to the front surface of a display of a mobile phone, a flat TV such as an OLED, etc., has a high demand for anti-fingerprint properties to prevent damage to image quality. In addition, there is a growing demand for fingerprint properties in order to secure visibility in glass windows. In addition, in various fingerprint recognition devices such as door locks, in order to increase security or leakage of fingerprint information, there is a growing need for a fingerprint formed on a fingerprint scan window to be removed in a short time during a fingerprint recognition process.
이러한 내지문성을 위하여 광촉매 특성에 위해 스스로 오일을 분해하는 TiO2 코팅이 적용될 수 있다. TiO2는 띠 간격(band gap)이 3.0∼3.2 eV으로 크기 때문에 파장이 짧은 자외선을 효과적으로 잘 흡수할 수 있고, 수용액 중에서 화학적 및 광화학적으로 안정하기 때문에 유기물을 지속적으로 광분해 시킬 수 있다.For such anti-fingerprint properties, a TiO 2 coating that decomposes oil by itself may be applied for photocatalytic properties. Since TiO 2 has a large band gap of 3.0 to 3.2 eV, it can effectively absorb ultraviolet rays with a short wavelength, and because it is chemically and photochemically stable in an aqueous solution, it can continuously photo-decompose organic matter.
이에 따라, 대한민국 공개특허 제2015-0036421호, 대한민국 등록특허 제1513755호 및 대한민국 등록특허 제1481991호 등에서 TiO2를 적용한 광촉매 코팅제를 제공하였다.Accordingly, in Korean Patent Application Publication No. 2015-0036421, Korean Patent No. 1513755, and Korean Patent No. 1491991, a photocatalytic coating agent applied with TiO 2 was provided.
그러나 상술한 TiO2는 용액 제조 시 응집 현상이 매우 심하여 불균질한 코팅 층을 형성하게 되며, 이로 인해 광촉매 특성이 현저히 줄어드는 단점이 있다. 이를 해결하기 위해 분산을 위한 유기 바인더를 이용하거나 형태(틀)를 만들어 코팅을 하게 되는데, 이 역시 코팅 내에 포함된 유기물 등은 광촉매 특성을 방해하는 요인으로 작용하여 특성이 좋지 못할 뿐만 아니라, 복잡한 형상 구현을 위한 제조 과정 때문에 적용이 어려운 문제점을 가진다.However, the above-described TiO 2 has a disadvantage in that the agglomeration phenomenon is very severe during the preparation of a solution to form a heterogeneous coating layer, and thus the photocatalytic properties are significantly reduced. In order to solve this problem, an organic binder for dispersion is used or a shape (frame) is formed to coat. This also acts as a factor that interferes with the photocatalytic properties, resulting in poor properties as well as complex shapes. The application is difficult because of the manufacturing process for implementation.
따라서 본 발명은 상술한 종래기술의 문제점을 해결하고 필요성을 충족시키기 위한 것으로서, TiO2를 포함하는 자기 세정 내지문성 코팅용액을 쉽게 빠르게 제작할 수 있도록 하며, 표면에 묻은 지문을 신속하게 완벽하게 제거하면서도, 코팅의 손상 없이 용액 내에서 유기물 분해를 수행하는 광촉매 자기세정 내지문성 코팅용액, 그 제조 방법 및 상기 코팅 용액을 이용한 코팅 방법을 제공하는 것을 목적으로 한다.Therefore, the present invention is to solve the problems of the prior art described above and to meet the necessity, it is possible to quickly and easily produce a self-cleaning anti-fingerprint coating solution containing TiO 2 , while quickly and completely removing fingerprints on the surface. , It is an object of the present invention to provide a photocatalytic self-cleaning anti-fingerprint coating solution that performs organic matter decomposition in a solution without damaging the coating, a method for preparing the same, and a coating method using the coating solution.
상술한 기술적 과제를 달성하기 위하여 본 발명의 일 실시예는, 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 입자가 균일하게 분산된 TiO2 나노 입자 현탁액에, 바인더로서의 TiO2 졸이 혼합된 광촉매 자기세정 내지문성 코팅용액을 제공한다.In order to achieve the above-described technical problem, an embodiment of the present invention is a TiO 2 nanoparticle suspension in which 2 wt% to 10 wt% of TiO 2 nanoparticles are uniformly dispersed compared to a solvent, and a TiO 2 sol as a binder is mixed. It provides a photocatalytic self-cleaning anti-fingerprint coating solution.
상기 TiO2 나노 입자 현탁액은, 증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 상기 TiO2 나노 분말을 분산시켜 초음파 처리한 것을 특징으로 한다.The
상기 TiO2 졸은, 0.2 M 내지 0.3 M의 Ti 이소프로폭시드(titanium isopropoxide)인 것을 특징으로 한다.The TiO 2 sol is characterized in that it is 0.2 M to 0.3 M of Ti isopropoxide (titanium isopropoxide).
상술한 기술적 과제를 달성하기 위하여 본 발명의 다른 실시예는, 증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 입자를 혼합한 후 초음파 처리하여 분산시키는 것에 의해 TiO2 나노분말 현탁액을 제조하는 단계; 및 상기 TiO2 나노 입자 현탁액에 바인더로서 TiO2 졸을 혼합하여 광촉매 자기세정 내지문성 코팅용액을 제조하는 단계;를 포함하는 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액 제조 방법을 제공한다.In order to achieve the above-described technical problem, another embodiment of the present invention is dispersed by mixing 2 wt% to 10 wt% of TiO 2 nanoparticles relative to the solvent in an ethanol mixed solvent containing 0.15 to 0.45M of distilled water and then ultrasonicating. Preparing a TiO 2 nanopowder suspension by making; And preparing a photocatalytic self-cleaning anti-fingerprint coating solution by mixing TiO 2 sol as a binder in the TiO 2 nanoparticle suspension.It provides a photocatalytic self-cleaning anti-fingerprint coating solution comprising a.
상기 TiO2 나노 광촉매 자기세정 내지문성 코팅용액을 제조하는 단계는, 상기 용제 대비 Ti 이소프로폭시드(titanium isopropoxide) 0.2 M 내지 0.3 M을 상기 TiO2 나노 분말 졸로서 상기 TiO2 나노 입자 현탁액에 혼합한 후, 상온에서 20 내지 28 시간 교반하는 단계일 수 있다.The step of preparing the TiO 2 nano photocatalytic self-cleaning to expertise coating solution, the solvent compared to Ti isopropoxide (titanium isopropoxide) 0.2 M to 0.3 M mixture of the TiO 2 nanoparticle suspension as the TiO 2 nano powder sol After that, it may be a step of stirring at room temperature for 20 to 28 hours.
상술한 기술적 과제를 달성하기 위하여 본 발명의 다른 실시예는, 증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 입자를 혼합한 후 초음파 처리하여 분산시키는 것에 의해 TiO2 나노분말 현탁액을 제조하는 단계; 상기 TiO2 나노 입자 현탁액에 바인더로서 TiO2 졸을 혼합하여 광촉매 자기세정 내지문성 코팅용액을 제조하는 단계; 상기 광촉매 자기세정 내지문성 코팅용액을 적용 기판에 코팅하는 코팅단계; 및 상기 코팅단계에 의해 광촉매 자기세정 내지문성 코팅용액이 코팅된 기판을 열처리하는 열처리단계;를 포함하는 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법을 제공한다.In order to achieve the above-described technical problem, another embodiment of the present invention is dispersed by mixing 2 wt% to 10 wt% of TiO 2 nanoparticles relative to the solvent in an ethanol mixed solvent containing 0.15 to 0.45M of distilled water and then ultrasonicating. Preparing a TiO 2 nanopowder suspension by making; Preparing a photocatalytic self-cleaning anti-fingerprint coating solution by mixing TiO 2 sol as a binder in the TiO 2 nanoparticle suspension; A coating step of coating the photocatalytic self-cleaning anti-fingerprint coating solution on an application substrate; And a heat treatment step of heat-treating the substrate coated with the photocatalytic self-cleaning anti-fingerprint coating solution by the coating step. It provides a coating method using a photocatalyst self-cleaning anti-fingerprint coating solution comprising:
상기 TiO2 졸을 혼합하는 단계는, 상기 용제 대비 Ti 이소프로폭시드(titanium isopropoxide) 0.2 M 내지 0.3 M을 상기 TiO2 졸로서 상기 TiO2 나노 입자 현탁액에 혼합한 후, 상온에서 20 내지 28 시간 교반하는 단계일 수 있다.Mixing the TiO 2 sol, the solvent compared to Ti isopropoxide (titanium isopropoxide) 0.2 of M to 0.3 M, as the TiO 2 sol was mixed with the TiO 2 nanoparticle suspension, at room temperature for 20 to 28 hours It may be a step of stirring.
상기 코팅단계는, 상기 기판을 상기 광촉매 자기세정 내지문성 코팅용액에 15 내지 25 초 동안 담근 후 건져내는 딥코팅단계;일 수 있다.The coating step may be a dip coating step in which the substrate is immersed in the photocatalyst self-cleaning anti-fingerprint coating solution for 15 to 25 seconds and then removed.
상기 열처리단계는, 230 ℃ 내지 270 ℃ 온도 범위에서, 30분 내지 1시간 30분 동안 수행되어, Ti 이소프로폭시드가의 환원과 TiO2 입자 간의 네킹(necking)을 유도하는 단계;일 수 있다.The heat treatment step may be performed for 30 minutes to 1 hour 30 minutes at a temperature range of 230° C. to 270° C. to induce reduction of Ti isopropoxide value and necking between TiO 2 particles.
상술한 기술적 과제를 달성하기 위하여 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 전자부품 외장재를 제공한다.In order to achieve the above-described technical problem, another embodiment of the present invention provides a fingerprint-resistant electronic component exterior material having a photocatalytic self-cleaning fingerprint-resistant coating layer formed by a coating method using the photocatalytic self-cleaning fingerprint-resistant coating solution.
상술한 기술적 과제를 달성하기 위하여 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 인테리어 유리 소재를 제공한다.In order to achieve the above-described technical problem, another embodiment of the present invention provides an anti-fingerprint interior glass material having a photocatalytic self-cleaning anti-fingerprint coating layer formed by a coating method using the photocatalytic self-cleaning anti-fingerprint coating solution.
상술한 기술적 과제를 달성하기 위하여 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 건축 내외장 유리 소재를 제공한다.In order to achieve the above-described technical problem, another embodiment of the present invention provides a fingerprint resistant architectural interior and exterior glass material having a photocatalytic self-cleaning anti-fingerprint coating layer formed by a coating method using the photocatalytic self-cleaning anti-fingerprint coating solution.
상술한 본 발명의 실시예들은, 광촉매 자기세정 내지문성 코팅용액의 제조를 위한 TiO2 나노 입자 현탁액의 제조 시 초음파 처리를 수행하여 용제에 TiO2 나노 분말을 균일 분산시키는 것에 의해, 코팅 용액 제조 시 응집 현상을 방지하여 균일한 광촉매 자기세정 내지문성 코팅 층을 형성할 수 있도록 하는 효과를 제공한다. The embodiments of the present invention described above are, when preparing a TiO 2 nanoparticle suspension for preparing a photocatalytic self-cleaning anti-fingerprint coating solution, by performing ultrasonic treatment to uniformly disperse TiO 2 nano powders in a solvent, when preparing a coating solution. It provides the effect of forming a uniform photocatalytic self-cleaning anti-fingerprint coating layer by preventing aggregation.
또한, 상술한 본 발명의 실시예들은, 광촉매 자기세정 내지문성 코팅용액의 제조 시, 코팅 용액 제조 시 응집 현상을 방지하여 균일한 코팅 층을 형성할 수 있도록 함으로써, 코팅 층 표면의 지문 등의 오일의 분해 제거 효율을 현저히 향상시키게 되어 코팅 층 표면의 지문 제거 효율을 현저히 향상시키는 효과를 제공한다.In addition, the above-described embodiments of the present invention, when preparing a photocatalytic self-cleaning anti-fingerprint coating solution, prevents agglomeration during the preparation of the coating solution to form a uniform coating layer, thereby preventing oil such as fingerprints on the surface of the coating layer. The decomposition and removal efficiency of the coating layer is remarkably improved, thereby providing the effect of remarkably improving the efficiency of removing fingerprints on the surface of the coating layer.
또한, 상술한 본 발명의 실시예들은, 광촉매 자기세정 내지문성 코팅용액의 제조 시, Ti 이소프로폭시드를 바인더로 사용함으로써, 유기바인더를 사용하지 않는 것에 의해 광촉매 효과에 의한 유기물질의 분해가 발생하지 않아 코팅 층의 손상이 발생하지 않게 되어, 광촉매 자기세정 내지문성 코팅 층의 내구성을 현저히 향상시키는 효과를 제공한다.In addition, in the above-described embodiments of the present invention, when preparing a photocatalytic self-cleaning anti-fingerprint coating solution, by using Ti isopropoxide as a binder, decomposition of organic substances due to the photocatalytic effect is prevented by not using an organic binder. As it does not occur, damage to the coating layer does not occur, thereby providing the effect of remarkably improving the durability of the photocatalytic self-cleaning anti-fingerprint coating layer.
도 1은 본 발명의 일 실시예의 광촉매 자기세정 내지문성 코팅용액 제조 방법 및 코팅 방법을 나타내는 순서도.
도 2는 TiO2 나노입자 함량에 따른 표면 SEM 사진.
도 3은 TiO2 나노입자 함량에 따른 투과도 및 연필경도를 나타내는 도면.
도 4는 TiO2 나노입자 함량에 따른 인공 지문 제거 성능 비교 도면.
도 5는 TiO2 나노입자 함유 광촉매의 시간별 흡광도를 나타내는 도면.
도 6은 TiO2 나노입자 함량에 따른 광촉매의 반응시간별 메틸렌 블루(methylene blue)의 분해 성능을 나타내는 그래프.1 is a flow chart showing a photocatalytic self-cleaning anti-fingerprint coating solution manufacturing method and coating method according to an embodiment of the present invention.
2 is a SEM photograph of the surface according to the content of TiO 2 nanoparticles.
3 is a view showing transmittance and pencil hardness according to the content of TiO 2 nanoparticles.
Figure 4 is a comparison diagram of the artificial fingerprint removal performance according to the content of TiO 2 nanoparticles.
5 is a diagram showing the absorbance over time of a photocatalyst containing TiO 2 nanoparticles.
6 is a graph showing the decomposition performance of methylene blue by reaction time of the photocatalyst according to the content of TiO 2 nanoparticles.
하기에서 본 발명을 설명함에 있어서, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다.In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.
본 발명의 개념에 따른 실시예는 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있으므로, 특정 실시예들을 도면에 예시하고 본 명세서 또는 출원서에 상세하게 설명하고자 한다. 그러나 이는 본 발명의 개념에 따른 실시예를 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명은 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.Since the embodiments according to the concept of the present invention can apply various changes and have various forms, specific embodiments will be illustrated in the drawings and will be described in detail in the present specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific form of disclosure, and the present invention should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.
어떤 구성요소가 다른 구성요소에 "연결되어" 있다거나 "접속되어" 있다고 언급된 때에는, 그 다른 구성요소에 직접적으로 연결되어 있거나 또는 접속되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다. 반면에, 어떤 구성요소가 다른 구성요소에 "직접 연결되어" 있다거나 "직접 접속되어" 있다고 언급된 때에는, 중간에 다른 구성요소가 존재하지 않는 것으로 이해되어야 할 것이다. 구성요소들 간의 관계를 설명하는 다른 표현들, 즉 "~사이에"와 "바로 ~사이에" 또는 "~에 이웃하는"과 "~에 직접 이웃하는" 등도 마찬가지로 해석되어야 한다.When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. Other expressions describing the relationship between components, such as "between" and "just between" or "adjacent to" and "directly adjacent to" should be interpreted as well.
본 명세서에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 명세서에서, "포함하다" 또는 "가지다" 등의 용어는 설시된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of a set feature, number, step, action, component, part, or combination thereof, but one or more other features or numbers It is to be understood that the possibility of addition or presence of, steps, actions, components, parts, or combinations thereof is not preliminarily excluded.
이하, 본 발명의 실시예를 나타내는 첨부 도면을 참조하여 본 발명을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.
본 발명의 일 실시예의 광촉매 자기세정 내지문성 코팅용액은, 증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 입자가 균일하게 분산된 TiO2 나노 입자 현탁액을 바인더로서의 TiO2 졸에 혼합된 구성을 가진다. 상기 TiO2 졸은 상기 용제 대비 0.2 M 내지 0.3 M의 Ti 이소프로폭시드(titanium isopropoxide) 이며, 상기 TiO2 졸을 TiO2 나노 입자 현탁액을 혼합한 후, 상온에서 20 내지 28 시간 교반하여 상기 광촉매 자기세정 내지문성 코팅용액이 제조되는 것을 특징으로 한다.One embodiment of a photocatalytic self-cleaning expertise to the coating solution of the present invention, distilled water and 0.15 to 0.45M in the ethanol solvent mixture containing the TiO 2 nanoparticles in the solvent compared to 2 wt% to 10 wt% TiO 2 nanoparticles uniformly dispersed The suspension was mixed in a TiO 2 sol as a binder. The TiO 2 sol is 0.2 M to 0.3 M of Ti isopropoxide compared to the solvent, and after mixing the TiO 2 sol with a TiO 2 nanoparticle suspension, the photocatalyst is stirred at room temperature for 20 to 28 hours. It characterized in that the self-cleaning anti-fingerprint coating solution is prepared.
상기 TiO2 나노 입자를 용제 대비 2 wt% 미만으로 혼합하는 경우에는 TiO2의 함량이 지나치게 낮아 광촉매 효과를 일으키지 않게 된다. 반면, TiO2 나노 입자가 용제 대비 10 wt%을 초과하여 혼합되는 경우에는, TiO2 코팅 층의 두께가 지나치게 두꺼워지며, 공극이 많이 발생하여 내구성이 저하되어 광촉매 코팅 층의 쉽게 파손되게 된다.When the TiO 2 nanoparticles are mixed with less than 2 wt% of the solvent, the content of TiO 2 is too low to cause a photocatalytic effect. On the other hand, when the TiO 2 nanoparticles are mixed in excess of 10 wt% compared to the solvent, the thickness of the TiO 2 coating layer becomes too thick, and the durability decreases due to the occurrence of many voids, and the photocatalyst coating layer is easily damaged.
또한, 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 전자부품 외장재를 제공한다.In addition, another embodiment of the present invention provides a fingerprint-resistant electronic component exterior material having a photocatalytic self-cleaning anti-fingerprint coating layer formed by a coating method using the photocatalytic self-cleaning anti-fingerprint coating solution.
또한, 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 인테리어 유리 소재를 제공한다.In addition, another embodiment of the present invention provides an anti-fingerprint interior glass material having a photocatalytic self-cleaning anti-fingerprint coating layer formed by a coating method using the photocatalytic self-cleaning anti-fingerprint coating solution.
또한, 본 발명의 다른 실시예는, 상기 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법에 의해 광촉매 자기세정 내지문성 코팅 층이 형성된 내지문성 건축 내외장 유리 소재를 제공한다.In addition, another embodiment of the present invention provides a fingerprint resistant architectural interior and exterior glass material having a photocatalytic self-cleaning anti-fingerprint coating layer formed by a coating method using the photocatalytic self-cleaning anti-fingerprint coating solution.
도 1은 본 발명의 일 실시예의 광촉매 자기세정 내지문성 코팅용액 제조 방법 및 코팅 방법을 나타내는 순서도이고, 1 is a flow chart showing a photocatalytic self-cleaning anti-fingerprint coating solution manufacturing method and coating method according to an embodiment of the present invention,
본 발명의 일 실시예의 광촉매 자기세정 내지문성 코팅용액 제조방법은, 도 1 및 도 2에서, TiO2 나노분말 현탁액 제조 단계(S10) 및 TiO2 나노분말 졸을 혼합하여 광촉매자기 세정 내지문성 코팅용액을 제조하는 단계(S20)를 포함하여 이루어진다.One embodiment of a photocatalytic self-cleaning to expertise coating solution preparation of the present invention, FIG. 1 and in FIG. 2, TiO 2 nano-powder suspension prepared step (S10), and TiO 2 by mixing nano-powder sol photocatalytic self-cleaning to expertise Coating Solution It consists of including a step (S20) of manufacturing.
구체적으로, 상기 TiO2 나노분말 현탁액 제조 단계(S10)는, 증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 용제 대비 2 wt% 내지 10 wt%의 TiO2 나노 분말을 혼합한 후 초음파 처리하여 분산시키는 것에 의해 TiO2 나노분말 현탁액을 제조한다. 상술한 초음파 처리를 수행하는 것에 의해 TiO2 나노 분말이 용제에 균일하게 분산됨으로써, 광촉매 자기세정 내지문성 코팅용액의 제조 시 응집 현상을 방지하여, 제조된 코팅용액을 이용한 균일한 광촉매 자기세정 내지문성 코팅 층의 형성을 가능하게 한다.Specifically, in the step of preparing the TiO 2 nanopowder suspension (S10), 2 wt% to 10 wt% of TiO 2 nanopowder compared to the solvent is mixed in an ethanol mixed solvent containing 0.15 to 0.45 M of distilled water, and then dispersed by ultrasonic treatment. To prepare a TiO 2 nanopowder suspension. By performing the above-described ultrasonic treatment, TiO 2 nanopowder is uniformly dispersed in the solvent, thereby preventing agglomeration during the preparation of the photocatalytic self-cleaning anti-fingerprint coating solution, and uniform photocatalytic self-cleaning anti-fingerprinting using the prepared coating solution. It allows the formation of a coating layer.
다음으로, 상기 광촉매 자기세정 내지문성 코팅용액 제조 단계(S20)에서, TiO2 졸로서 Ti 이소프로폭시드(Ti isopropoxide)를 0.2 M 내지 0.3 M을 재조된 상기 TiO2 나노분말 현탁액에 혼합한 후, 상온에서 20 내지 28 시간 교반하여 광촉매 자기세정 내지문성 코팅용액을 제조한다.Next, in the photocatalytic self-cleaning anti-fingerprint coating solution preparation step (S20), 0.2 M to 0.3 M of Ti isopropoxide as a TiO 2 sol was mixed with the prepared TiO 2 nanopowder suspension. , Stirring at room temperature for 20 to 28 hours to prepare a photocatalyst self-cleaning anti-fingerprint coating solution.
다음으로 ,본 발명의 다른 실시예의 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법은, 상기 광촉매 자기세정 내지문성 코팅용액 제조 방법의 도 1의 TiO2 나노분말 현탁액 제조 단계(S10), TiO2 나노분말 졸을 혼합하여 광촉매자기 세정 내지문성 코팅용액을 제조하는 단계(S20)에 부가하여, 상기 광촉매 자기세정 내지문성 코팅용액을 기판에 코팅하는 코팅단계(S30) 및 열처리 단계(S40)을 더 포함하여 구성된다.Next, the coating method using a photocatalytic self-cleaning anti-fingerprint coating solution of another embodiment of the present invention is a TiO 2 nanopowder suspension preparation step (S10) of FIG. 1 of the photocatalytic self-cleaning anti-fingerprint coating solution preparation method, TiO 2 nano In addition to the step (S20) of preparing a photocatalytic self-cleaning anti-fingerprint coating solution by mixing the powder sol, a coating step (S30) and a heat treatment step (S40) of coating the photocatalytic self-cleaning anti-fingerprint coating solution on a substrate are further included. It is composed by
구체적으로, 코팅단계(S30)에서 상기 기판을 상기 광촉매 자기세정 내지문성 코팅용액에 15 내지 25 초 동안 담근 후 건져내는 것에 의해 기판의 표면에 광촉매 자기세정 내지문성 코팅용액을 딥코팅한다. 이때, 광촉매 자기세정 내지문성 코팅용액이 도포된 기판은, 얇은 코팅 층의 형성을 위해, 4 mm/s 내지 6 mm/s로 상기 광촉매 자기세정 내지문성 코팅용액으로부터 꺼낸다.Specifically, in the coating step (S30), the substrate is immersed in the photocatalytic self-cleaning anti-fingerprint coating solution for 15 to 25 seconds and then removed, thereby dip coating the photocatalytic self-cleaning anti-fingerprint coating solution on the surface of the substrate. At this time, the substrate to which the photocatalytic self-cleaning anti-fingerprint coating solution is applied is taken out from the photocatalyst self-cleaning anti-fingerprint coating solution at 4 mm/s to 6 mm/s in order to form a thin coating layer.
다음으로, 상기 열처리단계(S40)에서, 광촉매 자기세정 내지문성 코팅용액이 딥코팅에 의해 도포된 기판을 230 ℃ 내지 270 ℃ 온도 범위에서, 30분 내지 1시간 30분 동안 수행되어, Ti 이소프로폭시드가의 환원과 TiO2 입자 간의 네킹(necking)을 유도하는 것에 의해 기판에 광촉매 자기세정 내지문성 코팅 층을 형성한다.Next, in the heat treatment step (S40), the substrate to which the photocatalytic self-cleaning anti-fingerprint coating solution is applied by dip coating is performed at a temperature range of 230°C to 270°C for 30 minutes to 1 hour 30 minutes, A photocatalytic self-cleaning anti-fingerprint coating layer is formed on the substrate by inducing the reduction of the foxseed value and necking between the TiO 2 particles.
<실험예><Experimental Example>
Degusa의 P25를 TiO2 나노 입자 분말, 에탄올 1.2 M과 증류수 0.3 M이 혼합된 용제 및 TiO2 졸인 바인더로서의 Ti 이소프로폭시드(titanium isopropoxide)(TIPP, C12H28O4Ti, 98+%, ACROS, USA)를 준비하였다.Degusa's P25 was used as a TiO 2 nanoparticle powder, a solvent in which 1.2 M of ethanol and 0.3 M of distilled water were mixed, and Ti isopropoxide (TIPP, C12H28O4Ti, 98+%, ACROS, USA) as a TiO 2 sol binder Ready.
준비된 TiO2 나노 입자를 용제(solvent) 대비 2, 4, 6, 8 및 10 wt%로 용제에 혼합한 후, 10분 동안 초음파처리(ultrasonication)하여 TiO2 나노 입자들이 균일하게 분산된 TiO2 나노 입자가 용제(solvent) 대비 2, 4, 6, 8 및 10 wt%로 포함된 TiO2 현탁액을 제조하였다.Prepared TiO 2 nanoparticles solvent (solvent) over 2, 4, 6, 8 and 10 were mixed in a solvent in wt%, 10 bun ultrasonic treatment (ultrasonication) and TiO 2 nanoparticles TiO 2 nm are uniformly dispersed, while TiO 2 suspension containing particles in 2, 4, 6, 8 and 10 wt% relative to the solvent was prepared.
이 후, 바인더 기능을 하는 TiO2 졸로서의 Ti 이소프로폭시드(titanium isopropoxide)(TIPP, C12H28O4Ti, 98+%, ACROS, USA) 0.3 M을 각각의 현탁액에 혼합하여 상온에서 24시간 동안 교반(stirring)하여, TiO2의 함량이 각각 2, 4, 6, 8 및 10 wt%인 5 가지의 광촉매 자기세정 내지문성 코팅용액을 제조하였다.Thereafter, 0.3 M of Ti isopropoxide (TIPP, C12H28O4Ti, 98+%, ACROS, USA) as a TiO 2 sol serving as a binder was mixed with each suspension and stirred at room temperature for 24 hours. ), 5 kinds of photocatalytic self-cleaning anti-fingerprint coating solutions having TiO 2 contents of 2, 4, 6, 8 and 10 wt%, respectively, were prepared.
제작된 실시예로서의 5가지의 광촉매 자기세정 내지문성 코팅용액을 각각을 슬라이드 글래스에 딥코팅 방법을 이용하여 코팅하였다. 코팅용액 내 유지시간은 20s로 고정하였고, 얇은 코팅을 얻기 위해 슬라이드 글래스는 5mm/s로 건져냈다. 이후, TiO2의 함량이 각각 2, 4, 6, 8 및 10 wt%인 광촉매 자기세정 내지문성 코팅용액이 코팅된 슬라이드 글래스 각각을 가열로 내에서 250 ℃에서 1 시간동안 열처리를 통해 TIPP의 환원과 TiO2 입자 간의 네킹(necking)을 유도하여 TiO2의 함량이 각각 2, 4, 6, 8 및 10 wt%인 광촉매 자기세정 내지문성 코팅 층이 형성된 슬라이드 글래스를 제조하였다.Each of the five photocatalytic self-cleaning anti-fingerprint coating solutions as prepared examples was coated on a slide glass using a dip coating method. The holding time in the coating solution was fixed at 20 s, and the slide glass was taken out at 5 mm/s to obtain a thin coating. Thereafter, each slide glass coated with a photocatalytic self-cleaning anti-fingerprint coating solution having TiO 2 content of 2, 4, 6, 8 and 10 wt%, respectively, was heat-treated at 250° C. for 1 hour in a heating furnace to reduce TIPP. By inducing necking between TiO 2 and TiO 2 particles, a slide glass with a photocatalytic self-cleaning anti-fingerprint coating layer having TiO 2 content of 2, 4, 6, 8 and 10 wt%, respectively, was prepared.
인공지문 용액을 16wt% 올레산(oleic acid)(Sigma-Aldrich, USA, 99%), 12 wt% 스쿠알렌(squalene)(Sigma-Aldrich, USA 98%), 25wt% 조조바 오일(jojoba oil)(Daily dozen inc., Korea), 그리고 41 wt% 옥수수 오일(corn oil)(Sajo, Korea)을 100 ml 비이커에 1시간 동안 교반을 통해 혼합하여 제조하고, 1일 정도 상온에 보관 후 TiO2의 함량이 각각 2, 4, 6, 8 및 10 wt%인 광촉매 자기세정 내지문성 코팅 층에 도포하였다.The artificial fingerprint solution was mixed with 16 wt% oleic acid (Sigma-Aldrich, USA, 99%), 12 wt% squalene (Sigma-Aldrich, USA 98%), and 25 wt% jojoba oil (Daily dozen). Inc., Korea), and 41 wt% corn oil (Sajo, Korea) were prepared by mixing in a 100 ml beaker through stirring for 1 hour, and after storing at room temperature for about 1 day, the content of
도 2는 TiO2 나노입자 함량에 따른 표면 SEM 사진이다.2 is a SEM photograph of the surface according to the content of TiO 2 nanoparticles.
도 2의 (a), (b), (c), (d) 및 (e)의 샘사진은 각각 TiO2의 함량이 각각 2, 4, 6, 8 및 10 wt%인 광촉매 자기세정 내지문성 코팅 층의 SEM 사진이다.Photocatalyst self-cleaning anti-fingerprint with TiO 2 content of 2, 4, 6, 8 and 10 wt%, respectively, in (a), (b), (c), (d) and (e) of FIG. 2 This is an SEM picture of the coating layer.
도 2의 (a)의 경우에는, 슬라이드 글래스(1)의 표면에 TiO2 나노 입자들이 서로 이격된 상태로 얇은 코팅 층을 형성하고 있었으며, TiO2의 함량이 10 wt%로 커질수록 TiO2 나노 입자들이 슬라이드 글래스(1)의 표면 전체를 덮으면서 점점 두껍게 코팅된 것을 확인할 수 있었다. 또한, TiO2의 함량이 10 wt%로 커질수록 공극(3)이 많이 생겨 공극율이 커지는 것을 확인할 수 있었다.There is also the case of (a) of Figure 2, was to the surface of the slide glass (1) to TiO 2 nanoparticles formed in a thin coating layer in a spaced state to each other, the more the content of TiO 2 greater by 10 wt% TiO 2 nano It was confirmed that the particles were gradually coated thicker while covering the entire surface of the slide glass (1). In addition, it was confirmed that as the content of TiO 2 increased to 10 wt%, more voids (3) were formed and the porosity increased.
도 3은 TiO2 나노입자 함량에 따른 투과도 및 연필경도를 나타내는 도면이다.3 is a diagram showing transmittance and pencil hardness according to the content of TiO 2 nanoparticles.
도 3의 (a)는 TiO2 나노입자 함량에 따른 파장별 투과도를 나타내는 도면이고, (b)는 연필경도(pencil hardness)를 나타낸다.Figure 3 (a) is a diagram showing the transmittance of each wavelength according to the content of TiO 2 nanoparticles, (b) is a pencil hardness (pencil hardness).
도 3의 (a)와 같이, TiO2 나노입자 함량이 가장 낮은 2wt%를 함유한 광촉매 자기세정 내지문성 코팅 층에서 각 파장별 투과도가 가장 높았고, TiO2 나노입자 함량이 가장 높은 10 wt%를 함유한 광촉매 자기세정 내지문성 코팅 층에서 각 파장별 투과도가 가장 낮은 것을 확인할 수 있었다. 이러한 광투과도의 감소는 TiO2 함량의 중가에 따른 코팅 층의 두께 증가에 기인한다.Of Figure 3 (a) and the like, TiO 2 nano-particle content is the lowest 2wt% the photocatalytic self-cleaning to expertise in the coating layer for each wavelength by the highest transmission rate, TiO 2 nano-particle content of highest 10 wt% containing It was confirmed that the transmittance of each wavelength was the lowest in the contained photocatalyst self-cleaning anti-fingerprint coating layer. This decrease in light transmittance is due to an increase in the thickness of the coating layer according to the increase in the TiO 2 content.
도 3의 (b)와 같이, TiO2 나노입자 함량이 가장 낮은 2wt% 및 4wt%를 함유한 광촉매 자기세정 내지문성 코팅 층의 경우 4H의 연필경도를 나타냈으나, TiO2 나노입자 함량이 높은 6 wt%, 8 wt%, 10 wt%를 함유한 광촉매 자기세정 내지문성 코팅 층의 경우 연필경도가 2H로 50%로 감소하는 것을 확인하였다. 이는, 코팅 층의 두께 증가와 함께 내부 공극률이 증가하는 것에 기인한다.As shown in (b) of Figure 3, TiO 2 nano-particle content, the lowest 2wt% and the case of a photocatalytic self-cleaning to expertise coating layer containing 4wt%, but did show a pencil hardness of 4H, TiO 2 nano-particle content is high In the case of the photocatalytic self-cleaning anti-fingerprint coating layer containing 6 wt%, 8 wt%, and 10 wt%, it was confirmed that the pencil hardness decreased to 50% by 2H. This is due to an increase in the internal porosity with an increase in the thickness of the coating layer.
도 4는 TiO2 나노입자 함량에 따른 인공 지문 제거 성능 비교 도면이다.4 is a diagram illustrating a comparison of artificial fingerprint removal performance according to the content of TiO 2 nanoparticles.
도 4의 (a)는 TiO2 코팅 층이 형성되지 않은 슬라이드 글라스에 인공 지문 용액을 묻힌 후 60분 후의 인공 지문 제거 상태를 나타내는 사진이고, (b)는 TiO2 나노 입자가 2wt%를 함유하는 코팅 층이 형성된 슬라이드 글라스에 인공 지문 용액을 묻힌 후 16분 후의 인공 지문 제거 상태를 나타내는 사진이며, (c)는 TiO2 나노 입자를 10wt% 함유하는 코팅 층이 형성된 슬라이드 글라스에 인공 지문 용액을 묻힌 후 12분 후에 인공 지문의 제거 상태를 나타내는 사진이다.Figure 4 (a) is a photograph showing the state of removing the
도 4와 같이, TiO2 코팅 층이 형성되지 않은 슬라이드 글라스에 비해 TiO2 나노 입자 코팅 층이 형성된 경우에서 인공 지문의 제거 시간이 60% 이상 감소하였으며, TiO2 나노 입자의 함량이 높을수록 인공 지문의 제거 시간이 더욱 짧아지는 것을 확인할 수 있었다.As shown in Figure 4, TiO 2 coating layer was in the case relative to the slide glass is not formed having a TiO 2 nanoparticles coated layer reduced removal time of the artificial fingerprint is 60% or more, the higher the content of TiO 2 nanoparticles artificial fingerprint It was confirmed that the removal time of was further shortened.
도 5는 TiO2 나노입자 함유 광촉매 코팅 층의 시간별 메틸렌 블루에 의한 흡광도를 나타내는 그래프이고, 도 6은 TiO2 나노입자 함량에 따른 광촉매의 반응시간별 메틸렌 블루(methylene blue)의 분해 성능을 나타내는 그래프이다.5 is a graph showing the absorbance of a photocatalyst coating layer containing TiO 2 nanoparticles by time of methylene blue, and FIG. 6 is a graph showing the decomposition performance of methylene blue by reaction time of the photocatalyst according to the content of TiO 2 nanoparticles. .
도 5 및 도 6과 같이. TiO2 나노입자 함유 광촉매 코팅 층 상에 메틸랜 블루 용액을 도포한 경우, 시간이 경과할수록 파란색 파장의 흡광도가 감소하였으며, 메필랜 블루의 분해가 급격히 진행됨을 알 수 있었다.As shown in Figures 5 and 6. When the methylene blue solution was applied on the TiO 2 nanoparticle-containing photocatalytic coating layer, the absorbance of the blue wavelength decreased as time passed, and the decomposition of mephyllene blue rapidly proceeded.
즉, 상술한 실험예에서, 본 발명의 실시예들은 광촉매 자기세정 내지문성 코팅 층을 형성한 경우, 효과적으로 표면에 묻은 지문 등의 유기물질을 효율적으로 분해하는 것을 확인하였다.That is, in the above-described experimental examples, it was confirmed that the embodiments of the present invention effectively decompose organic materials such as fingerprints on the surface when the photocatalytic self-cleaning anti-fingerprint coating layer is formed.
다만, TiO2 나노 입자의 함량에 따라, 광촉매 자기세정 내지문성 코팅 층의 지문 제거 성능 및 내구성이 반비례하게 변하므로, 광촉매 자기세정 내지문성 코팅 층의 지문 제거 성능 및 내구성을 동시에 고려하여 TiO2 나노 입자의 함량을 조절하는 것이 바람직하다. However, according to the content of TiO 2 nanoparticles, photocatalytic self-cleaning to it removes fingerprints of expertise coating layer performance and durability is inversely proportional to the change, the photocatalytic self-cleaning to expertise coating layer of the fingerprint removal performance and in consideration of the durability at the same time, TiO 2 nano It is desirable to control the content of the particles.
상기에서 설명한 본 발명의 기술적 사상은 바람직한 실시예에서 구체적으로 기술되었으나, 상기 실시예는 그 설명을 위한 것이며 그 제한을 위한 것이 아님을 주의하여야 한다. 또한, 본 발명의 기술적 분야의 통상의 지식을 가진 자라면 본 발명의 기술적 사상의 범위 내에서 다양한 실시예가 가능함을 이해할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 청구범위의 기술적 사상에 의해 정해져야 할 것이다.Although the technical idea of the present invention described above has been described in detail in a preferred embodiment, it should be noted that the embodiment is for the purpose of explanation and not for the limitation thereof. In addition, those of ordinary skill in the technical field of the present invention will be able to understand that various embodiments are possible within the scope of the technical idea of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.
1: 슬라이드 글래스
2: TiO2 나노 입자
3: 공극1: slide glass
2: TiO 2 nanoparticles
3: void
Claims (12)
상기 TiO2 졸은, 상기 용제 대비 0.2 M 내지 0.3 M의 Ti 이소프로폭시드(titanium isopropoxide)인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액.In a TiO 2 nanoparticle suspension in which 2 wt% to 10 wt% of TiO 2 nanoparticles are uniformly dispersed relative to the solvent, TiO 2 sol as a binder is mixed and configured,
The TiO 2 sol is a photocatalyst self-cleaning anti-fingerprint coating solution, characterized in that 0.2 M to 0.3 M of Ti isopropoxide compared to the solvent.
증류수 0.15 내지 0.45M이 포함된 에탄올 혼합 용제에 상기 TiO2 나노 분말을 분산시켜 초음파 처리하여 제조되는 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액.The method of claim 1, wherein the TiO2 nanoparticle suspension,
A photocatalytic self-cleaning anti-fingerprint coating solution, characterized in that prepared by dispersing the TiO 2 nanopowder in an ethanol mixed solvent containing 0.15 to 0.45M of distilled water and performing ultrasonic treatment.
상기 TiO2 나노 입자 현탁액에 바인더로서 TiO2 졸을 혼합하여 광촉매 자기세정 내지문성 코팅용액을 제조하는 단계;를 포함하는 것을 특징으로 하고,
상기 TiO2 졸은, 상기 용제 대비 0.2 M 내지 0.3 M의 Ti 이소프로폭시드(titanium isopropoxide)인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액 제조 방법.Preparing a TiO 2 nano powder suspension by distilled water to 0.15 to 0.45M and then mixing the nano-TiO 2 particles of the preparation 2 wt% to 10 wt% solution in ethanol, a mixed solvent containing the sonicated dispersion; And
And preparing a photocatalytic self-cleaning anti-fingerprint coating solution by mixing TiO 2 sol as a binder in the TiO 2 nanoparticle suspension,
The TiO 2 sol is a photocatalytic self-cleaning anti-fingerprint coating solution, characterized in that 0.2 M to 0.3 M of Ti isopropoxide compared to the solvent.
상기 용제 대비 Ti 이소프로폭시드(titanium isopropoxide) 0.2 M 내지 0.3 M을 상기 TiO2 나노 분말 졸로서 상기 TiO2 나노 입자 현탁액에 혼합한 후, 상온에서 20 내지 28 시간 교반하는 단계인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액 제조 방법.The method of claim 4, wherein preparing the TiO 2 nano photocatalyst self-cleaning anti-fingerprint coating solution,
As the solvent compared to Ti isopropoxide (titanium isopropoxide) 0.2 M to 0.3 M to the TiO 2 nano powder sol was mixed with the TiO 2 nanoparticle suspension, characterized in that the step of stirring for 20 to 28 hours at room temperature Method for producing a photocatalytic self-cleaning anti-fingerprint coating solution.
상기 TiO2 나노 입자 현탁액에 바인더로서 TiO2 졸을 혼합하여 광촉매 자기세정 내지문성 코팅용액을 제조하는 단계;
상기 광촉매 자기세정 내지문성 코팅용액을 적용 기판에 코팅하는 코팅단계; 및
상기 코팅단계에 의해 광촉매 자기세정 내지문성 코팅용액이 코팅된 기판을 열처리하는 열처리단계;를 포함하는 것을 특징으로 하고,
상기 TiO2 졸은, 상기 용제 대비 0.2 M 내지 0.3 M의 Ti 이소프로폭시드(titanium isopropoxide)인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법.Preparing a TiO 2 nano powder suspension by distilled water to 0.15 to 0.45M and then mixing the nano-TiO 2 particles of the preparation 2 wt% to 10 wt% solution in ethanol, a mixed solvent containing the sonicated dispersion;
Preparing a photocatalytic self-cleaning anti-fingerprint coating solution by mixing TiO 2 sol as a binder in the TiO 2 nanoparticle suspension;
A coating step of coating the photocatalytic self-cleaning anti-fingerprint coating solution on an application substrate; And
And a heat treatment step of heat-treating the substrate coated with the photocatalytic self-cleaning anti-fingerprint coating solution by the coating step, and
The TiO 2 sol is a coating method using a photocatalytic self-cleaning anti-fingerprint coating solution, characterized in that 0.2 M to 0.3 M of Ti isopropoxide compared to the solvent.
상기 용제 대비 Ti 이소프로폭시드(titanium isopropoxide) 0.2 M 내지 0.3 M을 상기 TiO2 졸로서 상기 TiO2 나노 입자 현탁액에 혼합한 후, 상온에서 20 내지 28 시간 교반하는 단계인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법.The method of claim 6, wherein the mixing of the TiO 2 sol,
Photocatalyst that the solvent compared to Ti isopropoxide (titanium isopropoxide) 0.2 M to 0.3 M by then a solution of the TiO 2 nanoparticle suspension, wherein the step of stirring for 20 to 28 hours at room temperature, as the TiO 2 sol magnetic Coating method using a cleaning anti-fingerprint coating solution.
상기 기판을 상기 광촉매 자기세정 내지문성 코팅용액에 15 내지 25 초 동안 담근 후 건져내는 딥코팅단계;인 것을 특징으로 하는 광촉매 자기세정 내지문성 코팅용액을 이용한 코팅 방법.The method of claim 6, wherein the coating step,
Dip coating step of immersing the substrate in the photocatalytic self-cleaning anti-fingerprint coating solution for 15 to 25 seconds and then removing the substrate; a coating method using a photocatalytic self-cleaning anti-fingerprint coating solution.
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