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KR102309803B1 - Low temperature curing water-soluble ceramic coating composition - Google Patents

Low temperature curing water-soluble ceramic coating composition Download PDF

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KR102309803B1
KR102309803B1 KR1020200012259A KR20200012259A KR102309803B1 KR 102309803 B1 KR102309803 B1 KR 102309803B1 KR 1020200012259 A KR1020200012259 A KR 1020200012259A KR 20200012259 A KR20200012259 A KR 20200012259A KR 102309803 B1 KR102309803 B1 KR 102309803B1
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colloidal silica
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KR20210098271A (en
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배남수
오중근
이성수
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18Fireproof paints including high temperature resistant paints
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D1/00Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)

Abstract

본 발명은 금속 소재와 석재 뿐만 아니라 합성수지계열의 모재 표면에도 부착 가능하도록 부착성이 향상되고 세라믹 도막제로서 불연성이 향상되며 상온에서도 경화 가능한 저온 경화 특성을 가지며 표면 광택도를 향상시킬 수 있도록 그 구조가 개선된 최첨단 저온 경화형 수성 세라믹 도료 조성물에 관한 것이다.The present invention improves adhesion so that it can be attached not only to metal materials and stone materials, but also to the surface of synthetic resin-based base materials, and as a ceramic coating agent, incombustibility is improved, has low-temperature curing properties that can be cured at room temperature, and has a structure to improve surface glossiness It relates to an improved state-of-the-art low-temperature curing type water-based ceramic paint composition.

Description

최첨단 저온 경화형 수성 세라믹 도료 조성물{Low temperature curing water-soluble ceramic coating composition}State-of-the-art low temperature curing water-soluble ceramic coating composition

본 발명은 최첨단 저온 경화형 수성 세라믹 도료 조성물에 관한 것으로, 특히 금속 소재와 석재 뿐만 아니라 합성수지계열의 모재 표면에도 부착 가능하도록 부착성이 향상되고 세라믹 도막제로서 불연성이 향상되며 상온에서도 경화 가능한 저온 경화 특성을 가지며 표면 광택도를 향상시킬 수 있도록 그 구조가 개선된 최첨단 저온 경화형 수성 세라믹 도료 조성물에 관한 것이다.The present invention relates to a state-of-the-art low-temperature curing type water-based ceramic paint composition. In particular, adhesion is improved so that it can be attached not only to metal materials and stone materials, but also to the surface of synthetic resin-based base materials, incombustibility is improved as a ceramic coating agent, and low-temperature curing properties that can be cured at room temperature It relates to a state-of-the-art low-temperature curing type water-based ceramic coating composition having an improved structure to improve surface glossiness.

일반적으로, 모르타르, 콘크리트, 석재 건축물의 외벽 및 내벽에는 도료가 사용되는데, 최근에는 미관 개선이라는 기본적인 역할 이외에 특수한 기능을 가진 도료가 요구되고 있는데, 그 중 화재 시 인명보호를 위해 내화도료가 주목을 받고 있다.In general, paints are used for exterior and interior walls of mortar, concrete, and stone buildings. Recently, paints with special functions in addition to the basic role of improving aesthetics are required. are receiving

내화도료는 화재의 확산을 방지하고 건축물의 구조와 성능을 일정시간 유지시켜 인명을 구조할 수 있는 제공하기 위해 사용되는 도료로서, 고온에서 균열, 연화, 박리 및 열변형이 되지 않아야 한다.Fireproof paint is a paint used to prevent the spread of fire and to save lives by maintaining the structure and performance of a building for a certain period of time.

대한민국 특허공개 제1989-0010138호에는 메탈실리케이트를 주재료로 하는 발포성 내화무기질 방화재에 대한 기술이 개시되어 있는데, 이와 같은 조성물의 경우 메탈실리케이트의 내열성에 한계가 있어 약 600℃이상의 고온 하에서는 도막이 용융되어 아래로 흘러내리는 문제가 있다.Korean Patent Laid-Open No. 1989-0010138 discloses a technology for a foamable fireproof inorganic fire retardant using metal silicate as the main material. In the case of such a composition, there is a limit to the heat resistance of metal silicate. There is a problem with dripping down.

이와 같은 문제점을 해결하기 위해, 대한민국 공개특허공보 제2005-0070809호에는 무기계 규산염계 수지를 사용하여 600℃이상의 고온에서도 내화성능을 가진 내화도료이 개시되어 있다. 하지만, 개시된 조성물은 내수성이 불량하고 피도물과의 부착성이 떨어지는 문제점이 있다.In order to solve this problem, Korean Patent Laid-Open Publication No. 2005-0070809 discloses a fire resistant paint having fire resistance even at a high temperature of 600° C. or higher using an inorganic silicate-based resin. However, the disclosed composition has a problem in that it has poor water resistance and poor adhesion to an object to be coated.

또한, 대한민국 등록특허공보 제784738호에는 유성 스타이렌 변성 아크릴을 사용하여 건조가 빠르고 내후성이 우수하며 발포 탄화층의 탈리 현상이 없는 내열도료이 개시되어 있다. 하지만, 개시된 조성물 역시 모재와의 부착성이 떨어질 뿐만 아니라, 도막의 내구성이 부족하고 특히 유기용제를 함유하고 있어 도막의 연소 시 인체에 유해한 가스가 방출되는 문제가 있다.In addition, Korean Patent No. 784738 discloses a heat-resistant paint using oil-based styrene-modified acrylic, which dries quickly, has excellent weather resistance, and does not cause desorption of the foamed carbonized layer. However, the disclosed composition also has a problem in that not only adhesion to the base material is poor, but also the durability of the coating film is insufficient and, in particular, it contains an organic solvent, so that gases harmful to the human body are emitted when the coating film is burned.

기존 수용성 세라믹 도료과 관련된 종래 또 다른 선행기술로는 한국 등록특허공보 제10-1514938호 "수용성 세라믹 불연도료의 제조방법"(등록일자 : 2015.04.18)에 개시된 바와 같이, (a)테트라메톡시실란 20~30 중량%와, 멜라민 10~14 중량%를 혼합한 용액에 인산염 0.3~0.7 중량%를 첨가한 상태에서 70~90로 5시간 동안 숙성하는 단계; (b)상기 숙성된 용액에 암모니아 0.3~0.7 중량%를 혼합하여 PH를 7~8로 조정하고, 증류수 15~25 중량%를 첨가하여 수화하는 단계; (c)상기 수화된 용액에 티타늄 테트라이소프로폭사이드 6~10 중량%를 첨가한 상태에서 50~60℃로 4시간 동안 숙성하는 단계; (d)상기 숙성된 용액에 암모니아 0.1~0.3 중량%를 혼합하여 PH를 12~13으로 조정하는 단계; 및 (e)상기 PH 조정된 용액에 금속산화물로 이루어지는 안료 15~25 중량%, 플라스타(Plaster) 12~16 중량%을 첨가한 혼합액을 분산하는 단계;를 포함하여 이루어지는 것이다.As another prior art related to the existing water-soluble ceramic paint, as disclosed in Korean Patent Publication No. 10-1514938 "Method for producing water-soluble ceramic non-combustible paint" (registration date: April 18, 2015), (a) tetramethoxysilane Aging for 5 hours at 70 to 90 in the state of adding 0.3 to 0.7 wt% of phosphate to a solution of 20 to 30 wt% and 10 to 14 wt% of melamine; (b) adjusting the PH to 7 to 8 by mixing 0.3 to 0.7 wt% of ammonia with the aged solution, and adding 15 to 25 wt% of distilled water to hydrate; (c) aging at 50-60° C. for 4 hours in a state of adding 6-10 wt% of titanium tetraisopropoxide to the hydrated solution; (d) adjusting the PH to 12-13 by mixing 0.1 to 0.3 wt% of ammonia with the aged solution; and (e) dispersing a mixed solution containing 15 to 25% by weight of a pigment made of a metal oxide and 12 to 16% by weight of a plaster in the pH-adjusted solution.

그런데, 기존 수용성 세라믹 도료는 금속이나 콘크리트 등의 표면에는 부착성이 우수하지만 화장품 용기 등의 합성수지 계열에는 부착성이 저하되는 단점이 있다.However, existing water-soluble ceramic paints have excellent adhesion to surfaces such as metal or concrete, but have a disadvantage in that adhesion is lowered to synthetic resins such as cosmetic containers.

상기한 도료 부착성을 향상시키기 위해 경화온도를 상승시킬 경우에는 화장품 용기 등의 합성수지 계열의 소재가 고온에 취약한 단점이 있으므로, 적용하기 어려운 단점이 있다. When the curing temperature is raised to improve the adhesion of the paint, synthetic resin-based materials such as cosmetic containers are vulnerable to high temperatures, so it is difficult to apply them.

대한민국 공개특허공보 제1989-0010138호 "발포성 무기질 조성물"Republic of Korea Patent Publication No. 1989-0010138 "Inorganic foam composition" 대한민국 공개특허공보 제2005-0070809호 "발포성 내화도료"Korean Patent Laid-Open Publication No. 2005-0070809 "Effervescent fire-resistance paint" 대한민국 등록특허공보 제784738호 "내화성능을 갖는 고밀도 유성계 발포성 내화도료 및 그의 도장방법"Republic of Korea Patent Publication No. 784738 "High-density oil-based foaming fire-resistance paint with fire-resistance performance and coating method therefor"

본 발명은 상기한 제반문제점을 감안하여 이를 해결하고자 창출된 것으로, 그 목적은 금속 소재와 석재 뿐만 아니라 합성수지계열의 모재 표면에도 부착 가능하도록 부착성이 향상되고 세라믹 도막제로서 불연성이 향상되며 상온에서도 경화 가능한 저온 경화 특성을 가지며 표면 광택도를 향상시킬 수 있도록 그 구조가 개선된 최첨단 저온 경화형 수성 세라믹 도료 조성물을 제공하는 데 있다.The present invention was created in consideration of the above-mentioned problems, and its purpose is to improve adhesion so that it can be attached not only to metal materials and stone materials, but also to the surface of synthetic resin-based base materials, and as a ceramic coating agent, non-combustibility is improved, and even at room temperature. An object of the present invention is to provide a state-of-the-art low-temperature curing type water-based ceramic coating composition having curable low-temperature curing properties and having an improved structure to improve surface glossiness.

상기한 목적을 달성하기 위한 본 발명은 중성의 수소이온 농도지수를 갖는 콜로이드 실리카 30~45중량%, 에틸 알코올 1~20중량%, 증류수 3~15중량%, 레벨링제 0.1~3.0중량%, 수계반응 촉진제 30~48중량%, 용매제 0.1~1.0중량%로 이루어지고, 상기 콜로이드 실리카의 PH 농도는 7.5~8.5이며, 상기 레벨링제는 폴리실록산이고, 상기 수계반응 촉진제는 메틸 트리 메톡시 실란이며, 상기 용매제는 구연산이고, 상기 콜로이드 실리카, 에틸 알코올, 증류수, 레벨링제, 수계반응 촉진제 및 용매제를 교반기 내에 투입하고 15~95℃의 온도에서 100~5000rpm의 교반속도로 교반하여 제조되는 것을 특징으로 한다.The present invention for achieving the above object is 30 to 45% by weight of colloidal silica having a neutral hydrogen ion concentration index, 1 to 20% by weight of ethyl alcohol, 3 to 15% by weight of distilled water, 0.1 to 3.0% by weight of a leveling agent, water-based 30 to 48% by weight of the reaction accelerator, 0.1 to 1.0% by weight of the solvent, the PH concentration of the colloidal silica is 7.5 to 8.5, the leveling agent is polysiloxane, the aqueous reaction promoter is methyl trimethoxysilane, The solvent is citric acid, and the colloidal silica, ethyl alcohol, distilled water, leveling agent, aqueous reaction accelerator and solvent are added into a stirrer and stirred at a temperature of 15 to 95° C. at a stirring speed of 100 to 5000 rpm. do it with

상기 최첨단 저온 경화형 수성 세라믹 도료 조성물의 콜로이드 실리카는 40중량%이고, 상기 에탄올은 10.8중량%이며, 상기 증류수는 4중량%이고, 상기 폴리실록산은 0.2중량%이며, 상기 메틸 트리 메톡시 실란은 44중량%이고, 상기 구연산은 1중량%로 제조되는 것이다.Colloidal silica of the state-of-the-art low temperature curable aqueous ceramic coating composition is 40 wt%, the ethanol is 10.8 wt%, the distilled water is 4 wt%, the polysiloxane is 0.2 wt%, and the methyl trimethoxysilane is 44 wt% %, and the citric acid is prepared in 1% by weight.

상기 콜로이드 실리카는 음전하를 띠는 무정질 실리카 미립자가 수중에서 콜로이드 상태를 이루며, 구형의 실리카 미립자구조를 갖는 것이다.The colloidal silica is one in which negatively charged amorphous silica particles form a colloidal state in water, and have a spherical silica particle structure.

본 발명의 최첨단 저온 경화형 수성 세라믹 도료 조성물은 합성수지 계열의 모재의 용융점보다 낮은 온도로 가열하더라도 경화가 이루어지고, 상온의 저온에서도 경화가 이루어지게 되어 합성수지 계열의 모재에 적용할 수 있는 유용한 이점을 갖는다.The state-of-the-art low-temperature curable water-based ceramic paint composition of the present invention is cured even when heated to a temperature lower than the melting point of the synthetic resin-based base material, and is cured even at a low temperature at room temperature. .

또한, 본 발명은 세라믹 도막제로서의 불연성이 향상되며 모재와의 부착성을 향상시키고 도막 표면의 매끄러움과 광택도를 향상시킬 수 있는 이점을 갖는다.In addition, the present invention has the advantage of improving incombustibility as a ceramic coating agent, improving adhesion to the base material, and improving the smoothness and glossiness of the coating film surface.

본 발명을 설명함에 있어서, 관련된 공지기술 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그에 대한 상세한 설명은 생략될 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 사용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다. 또한, 어떤 구성 요소를 '포함'한다는 것은 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성 요소를 더 포함할 수도 있다는 것을 의미한다. In describing the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. And the terms to be described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or custom of the user. Therefore, the definition should be made based on the content throughout this specification. In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

본 발명에 따른 최첨단 저온 경화형 수성 세라믹 도료 조성물은, 중성의 수소이온 농도지수를 갖는 콜로이드 실리카 30~45중량%, 에틸 알코올 1~20중량%, 증류수 3~15중량%, 레벨링제 0.1~3.0중량%, 수계반응 촉진제 30~48중량%, 용매제 0.1~1.0중량%로 이루어진다.The state-of-the-art low temperature curable water-based ceramic paint composition according to the present invention contains 30 to 45% by weight of colloidal silica having a neutral hydrogen ion concentration index, 1 to 20% by weight of ethyl alcohol, 3 to 15% by weight of distilled water, 0.1 to 3.0% by weight of a leveling agent %, 30 to 48% by weight of an aqueous reaction accelerator, and 0.1 to 1.0% by weight of a solvent.

상기 콜로이드 실리카(colloid silica; 일명 실리카졸)는 음전하를 띠는 무정질 실리카(Si02) 미립자가 수중에서 콜로이드 상태를 이루며, 구형의 실리카 미립자구조를 갖는다.In the colloidal silica (also known as silica sol), negatively charged amorphous silica (SiO 2 ) particles form a colloidal state in water, and have a spherical silica particle structure.

여기서 상기 콜로이드 실리카는 열에 잘 견디도록 불연성이 우수한 세라믹 도막제로서의 기능을 수행하게 된다.Here, the colloidal silica functions as a ceramic coating agent having excellent incombustibility to withstand heat well.

상기 에틸 알코올(ethylalcohol)은 C2H5OH의 화학식을 가지며, 여기서는 저온에서 휘발될 경우 모재 주변의 경화 온도를 낮추게 되어 본 발명 수성 세라믹 도료 조성물의 저온 경화 특성을 보조하는 기능을 수행하게 된다.The ethyl alcohol (ethylalcohol) has a chemical formula of C 2 H 5 OH, where when volatilized at low temperatures, it lowers the curing temperature around the base material, thereby assisting the low-temperature curing characteristics of the water-based ceramic coating composition of the present invention.

상기 증류수는 PH농도 수치조절 기능을 수행하게 된다.The distilled water performs a PH concentration numerical control function.

상기 레벨링제는 수성 세라믹 도료의 표면 레벨링을 통해 표면 조도를 조절하는 기능을 수행하게 된다.The leveling agent performs a function of controlling the surface roughness through the surface leveling of the water-based ceramic paint.

상기 레벨링제는 폴리실록산(polysiloxane ; 일명 실리콘)을 채용할 수 있다.The leveling agent may employ polysiloxane (also known as silicone).

상기 수계반응 촉진제는 광택도를 향상시키기 위한 것으로, 여기서는 메틸 트리 메톡시 실란(MTMS : Methyltrimethoxysilane)을 채용한다.The water-based reaction accelerator is to improve gloss, and methyl trimethoxysilane (MTMS: Methyltrimethoxysilane) is employed here.

상기 용매제는 열에너지 촉진제 및 용매제 기능을 갖는 구연산(Citric Acid)을 채용한다.The solvent employs citric acid having a thermal energy accelerator and solvent function.

상기 콜로이드 실리카는 전체 총 중량에 대하여 30.0 중량% 미만시 불연 성능이 저하되고, 45.0중량% 초과시에는 부착성이 저하되는 단점이 있다.When the colloidal silica is less than 30.0% by weight based on the total weight, the non-combustible performance is lowered, and when it exceeds 45.0% by weight, the adhesion is deteriorated.

상기 에틸 알코올은 전체 총 중량에 대하여 1.0중량% 미만시에는 저온 경화 특성을 발휘하기 어렵고, 이와 반대로 20.0중량% 초과시에는 부착성이 저하되고 농도가 묽어져 점성이 약화되며 불연성이 저하될 우려가 있다.When the ethyl alcohol is less than 1.0% by weight based on the total weight, it is difficult to exhibit low-temperature curing properties, and on the contrary, when it exceeds 20.0% by weight, adhesion is reduced, the concentration is diluted, the viscosity is weakened, and there is a risk of reduced incombustibility. .

상기 증류수는 전체 총 중량에 대하여 3 중량% 미만시에는 PH 농도가 산성화되기 쉬워 PH농도를 중성으로 조절하기 어렵고, 이와 반대로 15중량% 초과시에는 전체 농도가 묽어져 점성이 약화되는 단점이 있다.When the distilled water is less than 3% by weight based on the total weight, it is difficult to adjust the PH concentration to be neutral because the PH concentration is easily acidified.

상기 레벨링제인 폴리실록산은 전체 총 중량에 대하여 0.1중량% 미만시 표면 조도 조절이 어려워 표면 거칠기 조절이 어렵고, 3중량% 초과시에는 표면이 매끄러운 반면에 부착성이 저하되는 단점이 있다.When the leveling agent, polysiloxane, is less than 0.1% by weight relative to the total weight, it is difficult to control the surface roughness, and when it exceeds 3% by weight, the surface is smooth, but adhesion is lowered.

상기 수계반응 촉진제인 메틸 트리 메톡시 실란은 전체 총 중량에 대하여 30.0중량% 미만시 광택도가 저하될 우려가 있으며, 이와 반대로 48.0중량% 초과시 도료 표면에 크랙이 발생하고 박리현상이 심해지며 부착성이 저하될 우려가 있다.The water-based reaction accelerator, methyl trimethoxy silane, has a risk of lowering gloss when it is less than 30.0 wt % based on the total weight. This may decrease.

상기 용매제인 구연산은 전체 총 중량에 대하여 0.1중량% 미만시 용매제 역활을 수행하기 어렵고, 1.0중량% 초과시 경화가 발생하여 굳어질 우려가 있다.Citric acid, which is the solvent, is difficult to serve as a solvent when it is less than 0.1% by weight based on the total weight, and when it exceeds 1.0% by weight, there is a risk of hardening due to hardening.

상기 콜로이드 실리카는 PH 7.0~9.0의 중성 농도를 가지며, 더 바람직하게는 7.5~8.5의 PH농도를 갖는 것이다.The colloidal silica has a neutral concentration of PH 7.0 to 9.0, and more preferably has a PH concentration of 7.5 to 8.5.

상기 폴리실록산과 메틸 트리 메톡시 실란 및 구연산이 산성이므로, 콜로이드 실리카 및 증류수를 이용하여 본 발명 도료의 PH농도를 중성 수치로 조절한다.Since the polysiloxane, methyl trimethoxy silane, and citric acid are acidic, the PH concentration of the paint of the present invention is adjusted to a neutral value using colloidal silica and distilled water.

PH농도가 산성 수치에 비해 높을수록 수소이온의 농도가 높아지고 활성화가 양호한 상태를 유지하게 되고 도막의 광택도에 영향을 주므로 7.5~8.5의 중성 수치를 유지하도록 한다.As the PH concentration is higher than the acid value, the concentration of hydrogen ions increases and the activation is maintained in a good state, and it affects the glossiness of the coating film, so it is necessary to maintain a neutral value of 7.5~8.5.

상기한 성분들을 교반기 내에 투입하여 교반할 경우, 15~95℃의 온도에서100~5000rpm의 교반속도로 교반하게 된다.When the above components are added to the stirrer and stirred, the mixture is stirred at a temperature of 15 to 95° C. and a stirring speed of 100 to 5000 rpm.

상기 교반온도가 15℃ 미만이고 교반속도가 100rpm 미만일 경우에는 각 성분들이 골고루 교반되지 못하고 교반시간이 오래 걸리게 되며, 95℃ 초과시에는 에틸 알코올의 휘발성으로 인해 과열될 우려가 있고 5000rpm 초과시에는 교반기 모터에 과부하가 발생할 우려가 있다.If the stirring temperature is less than 15 ℃ and the stirring speed is less than 100 rpm, each component is not evenly stirred and it takes a long time to stir, and when it exceeds 95 ° C, there is a risk of overheating due to the volatility of ethyl alcohol. There is a risk of overload.

본 발명에 따른 실시예를 비교예 1,2를 비교한 결과는 아래의 표 1에서와 같다.(100g 기준) The results of comparing the Examples according to the present invention to Comparative Examples 1 and 2 are shown in Table 1 below. (Based on 100 g)

콜로이드 실리카colloidal silica 에탄올ethanol 증류수Distilled water 폴리실록산polysiloxane 메틸 트리 메톡시 실란methyl trimethoxy silane 구연산citric acid 비교예 1Comparative Example 1 4545 1.81.8 2.02.0 0.20.2 50.050.0 1.01.0 비교예 2Comparative Example 2 40.040.0 5.85.8 4.04.0 0.20.2 49.049.0 1.01.0 실시예Example 40.040.0 10.810.8 4.04.0 0.20.2 44.044.0 1.01.0

상기한 표 1에서와 같이 비교예1,2에서 실시예보다 메틸 트리 메톡시 실란의 비중을 늘리고 에탄올의 비중을 줄인 결과, 비교예1에서는 도막이 벗겨지는 박리현상이 발생하게 되고 실시예에 비해 부착력이 상대적으로 대폭 저하되는 단점이 발생하였고, 비교예2에서는 도막이 일부 벗겨지고 실시예에 비해 부착성이 다소 저하되었다.As shown in Table 1 above, in Comparative Examples 1 and 2, as a result of increasing the specific gravity of methyl trimethoxy silane and decreasing the specific gravity of ethanol than in Examples, in Comparative Example 1, a peeling phenomenon occurred in which the coating film was peeled off, and the adhesion strength compared to Examples This relatively significantly lowered disadvantage occurred, and in Comparative Example 2, the coating film was partially peeled off, and the adhesion was somewhat lowered compared to the Example.

상기 실시예를 참조로 본 발명의 저온 경화형 세라믹 도료는 상온에서 10~14시간 내에 경화되고, 80~90℃로 가열할 경우 3~5분 내에 경화되었다.With reference to the above examples, the low-temperature curable ceramic paint of the present invention was cured within 10 to 14 hours at room temperature, and cured within 3 to 5 minutes when heated to 80 to 90°C.

따라서, 본 발명의 도료는 상온에서 자연 건조시키거나, 90℃이하의 온도로 가열하여 경화시킬 수 있다.Therefore, the paint of the present invention can be cured by natural drying at room temperature or by heating at a temperature of 90° C. or less.

상기 가열온도를 90℃를 초과하는 온도로 지속적으로 가열할 경우에는 모재의 용융점을 초과하여 모재가 녹아버리거나, 도막의 표면 평탄도가 저하되거나 광택도에 악영향을 줄 수 있다.When the heating temperature is continuously heated to a temperature exceeding 90° C., the base material may melt beyond the melting point of the base material, the surface flatness of the coating film may be reduced, or the glossiness may be adversely affected.

즉, 본 발명의 도료는 상온~90℃의 가열 조건에서 경화가 발생하게 되고, 가열온도가 높아질수록 경화에 필요한 시간이 단축되는 특성을 갖는다.That is, the paint of the present invention is cured under a heating condition of room temperature to 90° C., and has a characteristic that the time required for curing is shortened as the heating temperature is increased.

상기한 배합 비율로 조성된 실시예는 비교예1,2와 비교할 때, 부착성이 향상되고, 상온에서도 경화가 이루어지게 됨에 따라 목재나 금속재 등의 표면에도 적용할 수 있게 되어 도료의 범용성이 향상되는 이점을 갖는다.Compared with Comparative Examples 1 and 2, the adhesiveness of Examples composed at the above mixing ratio is improved, and as hardening is performed even at room temperature, it can be applied to the surface of wood or metal materials, and thus the versatility of the paint is improved. have the advantage of being

기존 도료의 경우 경화를 위해 130℃ 이상의 온도로 가열하여 경화시키고 있으나, 이 경우에는 도료가 코팅되는 모재가 합성수지인 경우 경화 온도에 도달할 경우 용융되어 경화가 불가능한 단점이 있으나, 본 발명의 최첨단 저온 경화형 수성 세라믹 도료 조성물은 합성수지 계열의 모재의 용융점보다 낮은 온도로 가열하더라도 경화가 이루어지고, 상온의 저온에서도 경화가 이루어지게 되어 합성수지 계열의 모재에 적용할 수 있는 유용한 이점을 갖는다. In the case of existing paints, they are cured by heating at a temperature of 130°C or higher for curing. The curable water-based ceramic paint composition is cured even when heated to a temperature lower than the melting point of the synthetic resin-based base material, and is cured even at a low temperature at room temperature.

이때, 본 발명 최첨단 저온 경화형 수성 세라믹 도료 조성물은 PH농도가 중성이고 휘발성 성분인 에틸 알코올이 함유됨에 따라 상온 이상의 저온에서도 경화가 이루어지게 된다.At this time, the state-of-the-art low-temperature curable water-based ceramic paint composition of the present invention has a neutral PH concentration and contains ethyl alcohol, a volatile component, so that it is cured even at a low temperature above room temperature.

상기 에틸 알코올은 경화를 위한 가열시 휘발되면서 주위 온도를 낮추는 특성을 가지고 있으므로, 용융점이 낮은 ABS 수지와 같은 열가소성 수지 소재에도 본 발명의 도료를 적용할 수 있는 이점을 갖는다.Since the ethyl alcohol has a characteristic of lowering the ambient temperature while volatilizing upon heating for curing, it has the advantage that the paint of the present invention can be applied to a thermoplastic resin material such as an ABS resin having a low melting point.

또한, 본 발명은 적정 배합 비율을 갖는 에틸알코올, 증류수, 폴리실록산 및 메틸 트리 메톡시 실란을 이용하여 모재와의 부착성을 향상시키고 도막 표면의 매끄러움과 광택도를 향상시킬 수 있는 이점을 갖는다.In addition, the present invention has the advantage of improving adhesion to the base material and improving the smoothness and glossiness of the coating film surface by using ethyl alcohol, distilled water, polysiloxane and methyl trimethoxy silane having an appropriate mixing ratio.

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시 예에 대해 설명하였으나, 본 발명의 범주에서 벗어나지 않는 범위 내에서 여러가지 변형이 가능함은 물론이다. 그러므로, 본 발명의 범위는 앞서 설명된 실시 예에 국한되어 한정되어서는 아니되며, 후술하는 특허청구범위 뿐만 아니라 이 청구범위와 균등한 것들에 의해 정해져야 한다.As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention is not limited to the above-described embodiment, but should be defined by the claims and equivalents as well as the claims to be described later.

즉, 이상에서와 같이 설명한 본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.That is, the present invention described as described above is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims Of course, various modifications are possible, and such modifications are within the scope of the claims.

Claims (3)

중성의 수소이온 농도지수를 갖는 콜로이드 실리카 30~45중량%, 에틸 알코올 1~20중량%, 증류수 3~15중량%, 레벨링제 0.1~3.0중량%, 수계반응 촉진제 30~48중량%, 용매제 0.1~1.0중량%로 이루어지고,
상기 콜로이드 실리카의 PH 농도는 7.5~8.5이며, 상기 레벨링제는 산성의 폴리실록산이고, 상기 수계반응 촉진제는 산성의 메틸 트리 메톡시 실란이며, 상기 용매제는 산성의 구연산이고,
상기 콜로이드 실리카, 에틸 알코올, 증류수, 레벨링제, 수계반응 촉진제 및 용매제를 교반기 내에 투입하고 15~95℃의 온도에서 100~5000rpm의 교반속도로 교반하여 도료가 제조되되,
상기 콜로이드 실리카는 음전하를 띠는 무정질 실리카 미립자가 수중에서 콜로이드 상태를 이루는 구형의 실리카 미립자 구조이고,
상기 도료는 산성의 폴리실록산과 메틸 트리 메톡시 실란 및 구연산을 콜로이드 실리카와 증류수를 이용하여 중성의 PH농도를 갖도록 조절되어 도료가 제조되는 것을 특징으로 하는 최첨단 저온 경화형 수성 세라믹 도료 조성물.
30-45 wt% of colloidal silica having a neutral hydrogen ion concentration index, 1-20 wt% of ethyl alcohol, 3-15 wt% of distilled water, 0.1-3.0 wt% of a leveling agent, 30-48 wt% of a water-based reaction accelerator, solvent Consists of 0.1 to 1.0% by weight,
The PH concentration of the colloidal silica is 7.5 to 8.5, the leveling agent is acidic polysiloxane, the aqueous reaction accelerator is acidic methyl trimethoxy silane, and the solvent is acidic citric acid,
The colloidal silica, ethyl alcohol, distilled water, a leveling agent, an aqueous reaction accelerator and a solvent are put into a stirrer, and the paint is prepared by stirring at a temperature of 15 to 95° C. at a stirring speed of 100 to 5000 rpm,
The colloidal silica is a spherical silica particle structure in which negatively charged amorphous silica particles form a colloidal state in water,
The state-of-the-art low temperature curable water-based ceramic paint composition, characterized in that the paint is prepared by adjusting acidic polysiloxane, methyl trimethoxy silane, and citric acid to have a neutral PH concentration using colloidal silica and distilled water.
청구항 1에 있어서,
상기 최첨단 저온 경화형 수성 세라믹 도료 조성물의 콜로이드 실리카는 40중량%이고, 상기 에틸 알코올은 10.8중량%이며, 상기 증류수는 4중량%이고, 상기 폴리실록산은 0.2중량%이며, 상기 메틸 트리 메톡시 실란은 44중량%이고, 상기 구연산은 1중량%로 제조되는 것을 특징으로 하는 최첨단 저온 경화형 수성 세라믹 도료 조성물.
The method according to claim 1,
Colloidal silica of the state-of-the-art low temperature curable aqueous ceramic coating composition is 40 wt%, the ethyl alcohol is 10.8 wt%, the distilled water is 4 wt%, the polysiloxane is 0.2 wt%, and the methyl trimethoxysilane is 44 % by weight, and the citric acid is a state-of-the-art low temperature curable water-based ceramic coating composition, characterized in that it is prepared in 1% by weight.
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