KR101566859B1 - Protective coating method using the coating and it has a self-healing capabilities - Google Patents
Protective coating method using the coating and it has a self-healing capabilities Download PDFInfo
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Abstract
Description
본 발명은 자가치유 성능을 가진 중방식 도장재 및 이를 이용한 도포방법에 관한 것으로 보다 상세하게는, 하도재 도료를 나노캡슐화 하여 도포되는 것으로, 강교의 크랙 발생시 나노캡슐이 깨지거나, 산소에 노출됨으로 녹아내려 크랙을 메움으로 자가 균열치료가 이루어지며, 중도재 도료에 고무분말이 혼합되며, 강교의 인장 및 수축시에도 도료에 균열이 발생하지 않도록 하며, 상도재 도료에 표면을 매끄럽게하고, 자외선을 차단하여 중도재 도료가 손상되지 않다록 혼합되는 폴리우레탄 수분산액으로 이루어지는 자가치유 성능을 가진 중방식 도장재 및 이를 이용한 도포방법에 대한 것이다.
The present invention relates to a heavy-duty coating material having self-healing properties and a coating method using the same, and more particularly, to a coating material using nanocapsules of a coating material of the present invention. When a crack occurs in a steel bridge, The cracks are covered by the self cracking treatment, the rubber powder is mixed with the middle paint, the paint is not cracked even during tension and contraction of the steel bridge, the surface is smoothed with the top coat paint, The present invention relates to a self-healing coating material having a self-healing property and a coating method using the self-healing coating material.
일반적으로 강재로 이루어진 교량 또는 도장재 구조물들은 대부분 자연환경에 노출되어 부식되기 쉬워 부식을 방지하기 위해 교량 또는 도장재로 이루어진 교량 내지 구조물에 부식방지처리를 하는 것이 일반적이다.Generally, a bridge made of steel or a coating material structure is exposed to a natural environment and is easily corroded. Therefore, in order to prevent corrosion, a bridge or a structure made of a coating material is generally subjected to corrosion prevention treatment.
강재 구조물 및 교량 내지는 도장재 구조물 및 교량의 부식은 건식부식과 습식부식으로 나눠지며, 건식부식은 고온가스 등에 의한 부식이며, 습식부식은 담수, 해수 등 대기 중의 부식은 산, 알칼리, 염 등에 의한 부식이 발생하고, 땅속에서의 습식부식이 발생하고 있다.Corrosion of steel structures and bridges or painted structures and bridges is divided into dry corrosion and wet corrosion. Dry corrosion is corrosion caused by high temperature gas. Wet corrosion is caused by corrosion caused by acid, alkali, And wet corrosion occurs in the ground.
종래의 하도재 재료로 사용되던 위시프라이머는 폴리비닐부틸알수지는 전색제로 하고 인산, 무수크롬산, 크롬산아연, 알코올 등을 가한 조성물이다.The preferred primer used as a conventional primer material is polyvinylbutylphthalate, which is prepared by adding phosphoric acid, chromic acid anhydride, zinc chromate, alcohol, etc. as a vehicle.
종래의 위시프라이머는 크롬산아연 안료나 무수크롬산을 배합하기 때문에 도장시 발생하는 스프레이 더스트(spray dust)를 도장 작업자가 흡인한 경우 크롬 금속이온에 의한 크롬 공해의 문제가 있었다.
Conventional wishing primers have a problem of chromium pollution due to chromium metal ions when a paint dust is sucked by a sprayer due to mixing of chromate zinc chrome and chromic anhydride.
<참고문헌><References>
출원번호 : 10-2013-0080892 강재 구조물의 중방식 도장용 조성물 및 이를 이용한 시공방법
Application No.: 10-2013-0080892 Heavy-duty coating composition of steel structure and method of construction using the same
상기의 문제점을 해결하기 위한 본 발명은 강교에 발생되는 크랙을 방지하는 자가치유 성능을 가진 중방식 도장재 및 이를 이용한 도포방법을 제공하는 것을 목적으로 한다.In order to solve the above-described problems, it is an object of the present invention to provide a heavy-duty coating material having self-healing ability for preventing cracks generated in a steel bridge, and a coating method using the same.
또한, 아크릴계의 하도재 도료를 나노캡슐화 하여 도포함으로 크랙 발생시 나노캡슐이 깨지거나, 산소에 노출됨으로 흘러내려 크랙을 메움으로 자가 균열을 치료하는 것을 목적으로 한다.In addition, the acrylic base coating material is applied by nanocapsulation to crack the nanocapsules upon exposure to a crack, or to cover the cracks by exposure to oxygen, thereby treating self-cracking.
또한, 하도재 도료에 세라믹 볼이 함유되어 도막의 강도와 두께를 두텁게 하는 역할을 하고, 규사로 만들어지는 미립자 구조로 표면이 거칠어 부착력을 증대시켜주는 것을 목적으로 한다.In addition, ceramic balls are contained in the undercoat paint to increase the strength and thickness of the coating film, and the surface of the fine particle structure made of silica sand is coarse to increase adhesion.
또한, 중도재 도료에 고무분말과 아라미드 섬유 및 유리섬유가 혼합되어 부착력이 증가하고, 탄성을 갖도록 함으로 인장 및 수축에 의해 균열이 발생하지 않도록 하는 것을 목적으로 한다.In addition, the rubber powder, the aramid fiber and the glass fiber are mixed with the intermediate repainting material to increase the adhesive force and the elasticity so as to prevent cracking due to tensile and shrinkage.
또한, 상도재 도료에 폴리우레탄 수분산액을 혼합하여 도포함으로 표면을 매끄럽게하고, 자외선을 차단하여 중도재 도료가 손상되지 않도록 하는 것을 목적으로 한다.
It is another object of the present invention to provide a topcoat coating material which is obtained by mixing and coating a polyurethane water dispersion liquid so as to smooth the surface, and to prevent ultraviolet rays from being damaged by the intermediate coating material.
상기의 목적을 달성하기 위한 본 발명은 강교 내지 강재 플랜트에 균열을 방지하도록 도장하는 도장재에 대한 것으로, 상기 도장재는 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 하도재 도료와 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 중도재 도료와 폴리우레탄, 아크릴 폴리올 수지, 무황변 폴리 우레아 수지, 폴리 이소시아네이트 경화제로 이루어지는 상도재 도료의 중방식 도장재에 있어서, 상기 하도재 도료를 5nm ~ 20nm 입자로 제조되는 나노 캡슐; 상기 하도재 도료에 세라믹계 분말, 금속분말, 세라믹 볼이 더 포함되고, 상기 중도재 도료에 1.5㎛ ~ 4.5㎛의 입자로 미분말화 되는 고무 분말과 아라미드 섬유와 유리 섬유가 더 포함되어 혼합되며, 상기 상도재 도료에 표면을 매끄럽게하고, 자외선을 차단하여 중도재 도료가 손상되지 않도록 혼합되는 폴리우레탄 수분산액; 를 포함하는 것을 특징으로 한다.In order to accomplish the above object, the present invention provides a coating material for preventing cracks in steel bridges or steel plants, wherein the coating material comprises a water-soluble acrylic emulsion, an undercoat paint comprising an aromatic amine curing agent, a water-soluble acrylic emulsion and an aromatic amine curing agent And a polyisocyanate curing agent, wherein the undercoating material is a nanocapsule made of particles having a particle size of 5 nm to 20 nm, wherein the undercoating material is a polyurethane resin, an acrylic polyol resin, a non-yellowing polyurea resin, and a polyisocyanate curing agent. Wherein the base material further comprises a ceramic powder, a metal powder, and a ceramic ball, and further comprises rubber powder, aramid fiber and glass fiber, which are finely pulverized into particles of 1.5 탆 to 4.5 탆, A polyurethane water dispersion liquid which smoothens the surface of the top coat paint and shields the ultraviolet rays to prevent the intermediate coat paint from being damaged; And a control unit.
또한, 상기 하도재 도료의 나노캡슐은 계면 겔화반응법을 사용하여 겔화제에 의하여 캡슐을 제조한 후 캡슐벽막겔에 무기질막형성제를 트랩 내지는 반응 시킨 후 열처리하여 다공질 중공캡슐로 이루어지는 것을 특징으로 한다.In addition, the nanocapsules of the undercoating material may be prepared by preparing capsules using a gelling agent using an interfacial gelation method, reacting the inorganic film forming agent with a trapping agent or the like, and then heat-treating the capsules to form a porous hollow capsule. do.
또한, 상기 하도재 도료에 접착력, 마모성, 충격성, 내후성, 방청성을 높이기 위해 세라믹계 분말과 금속분말이 더 포함되며, 상기 세라믹계 분말과 금속분말은 1㎛ ~ 2.5㎛의 입자크기로 이루어지고, 상기 세라믹 계 분말에는 실리콘(Si), 알루미늄(Al), 타이타늄(Ti), 지르코늄(Zr)가 구비되어 있으며, 상기 세라믹계 분말에 아연, 알루미늄, 은, 동의 금속분말이 혼합되는 것을 특징으로 한다.The ceramic base powder and the metal powder may have a particle size of 1 to 2.5 占 퐉. The ceramic base powder and the metal powder may have a particle size of 1 占 퐉 to 2.5 占 퐉, The ceramic-based powder includes silicon (Si), aluminum (Al), titanium (Ti), and zirconium (Zr), and the ceramic powder is mixed with zinc, aluminum, .
또한, 상기 하도재 도료의 1000중량부 중 수용성 아크릴 에멀전 600중량부, 변성방향족 아민 경화제 200중량부, 세라믹계 분말 100중량부, 금속분말 90중량부, 세라믹 볼 10중량부로 6 : 2 : 1 : 0.9 : 0.1 의 구성 비율로 이루어지고, 상기 하도재 도료에 자일렌 10 ~ 25중량부, 부탄올 8 ~ 20중량부, 애니솔-100 8~20중량부가 더 혼합되어 이루어지는 것을 특징으로 한다.
또한, 상기 중도재 도료의 1000중량부 중 수용성 아크릴 에멀전 550중량부, 방향족 아민 경화제 250중량부, 고무 분말 100중량부, 아라미드 섬유 50중량부, 유리 섬유 50중량부로 혼합비는 5.5 : 2.5 : 1 : 0.5 : 0.5의 구성 비율로 혼합되어 이루어지고, 상기 중도재 도료에 자일렌 30 ~ 40중량부와 카드뮴옐로우, 카드뮴레드, 코발트블루, 황산바륨, 징크로메이트, 산화안티몬으로 이루어지는 군에서 선택되는 어느 하나의 무기안료가 5 ~ 10중량부가 더 혼합되어 이루어지는 것을 특징으로 한다.
또한, 상기 상도재 도료의 1000중량부 중 폴리우레탄 300중량부, 아크릴 폴리올 수지 200중량부, 무황변 폴리 우레아 수지 200중량부, 폴리 이소시아네이트 경화제 200중량부, 폴리우레탄 수분산액 100중량부로 혼합비는 3 : 2 : 2 : 2 : 1 의 구성 비율로 혼합되어 이루어지고, 상기 상도재 도료에 자외선 차단제 0.1 ~ 1중량부, 자외선 안정제 0.1 ~ 1중량부가 더 혼합되어 이루어지는 것을 특징으로 한다.
또한, 하도재 도료와 중도재 도료 및 상도재 도료로 도포되는, 제1항 내지 제6항 중에서 선택되는 어느 한 항의 수용성 중방식 도장용 조성물을 이용한 도포 방법으로, 강교 내지 강재 플랜트의 표면의 녹, 먼지를 그라인더를 통해 긁어내는 그라인딩 단계(S10); 상기 그라인더를 통해 긁어진 표면을 고압세척기를 통해 표면을 분진을 제거하기 위해 이루어지는 고압세척 단계(S20); 상기 고압세척기를 통한 세척 후 에어리스 스프레이를 통해 90 ~ 180㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 하도재 도포단계(S30); 상기 하도재 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조 후 에어리스 스프레이를 통해 80 ~ 120㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 중도재 도포단계(S40); 상기 중도재 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조 후 에어리스 스프레이를 통해 60 ~ 85㎛의 도막 두께로 1회 또는 2회에 걸쳐 도포하는 상도재 도포단계(S50); 로 도포되는 것을 특징으로 한다.
2 parts by weight of a water-soluble acrylic emulsion, 200 parts by weight of a modified aromatic amine curing agent, 100 parts by weight of a ceramic powder, 90 parts by weight of a metal powder, and 10 parts by weight of a ceramic ball in 1000 parts by weight of the above- 0.9 to 0.1, and 10 to 25 parts by weight of xylene, 8 to 20 parts by weight of butanol and 8 to 20 parts by weight of anisole are further mixed in the undercoating material.
The mixing ratio of the water-soluble acrylic emulsion, 250 parts by weight of the aromatic amine curing agent, 100 parts by weight of the rubber powder, 50 parts by weight of the aramid fiber and 50 parts by weight of the glass fiber was set to 5.5: 2.5: 1: 0.5 to 0.5% by weight based on the total weight of the composition, and 30 to 40 parts by weight of xylene is mixed with the intermediate coating material, and one or more selected from the group consisting of cadmium yellow, cadmium red, cobalt blue, barium sulfate, ginghamate and antimony oxide 5 to 10 parts by weight of an inorganic pigment is further mixed.
The mixing ratio of 300 parts by weight of polyurethane, 200 parts by weight of acrylic polyol resin, 200 parts by weight of non-yellowing polyurea resin, 200 parts by weight of polyisocyanate curing agent and 100 parts by weight of polyurethane water dispersion in 1000 parts by weight of the above- : 2: 2: 2: 1, and 0.1 to 1 part by weight of an ultraviolet screening agent and 0.1 to 1 part by weight of an ultraviolet stabilizer are further mixed in the above top coating material.
The coating method using the water-soluble intermediate coating composition according to any one of claims 1 to 6, which is applied with a primer coating material, a middle coating material and an upper coating material, , A grinding step (SlO) of scraping dust through the grinder; A high pressure cleaning step (S20) in which the surface scraped through the grinder is made to remove dust on the surface through a high pressure washer; (S30), which is applied once or twice or three times with a film thickness of 90 to 180 mu m through an airless spray after washing through the high pressure washer; When the above-mentioned undercoating material is applied, it is dried to a degree that the hand does not adhere to the paint when it is touched with the hand of the operator in a natural dry state, and then applied once or twice or three times with a film thickness of 80 to 120 탆 through an airless spray. Reapplication step S40; After applying the above-mentioned intermediate coating composition, it is dried to such an extent that the hands are touched with the hand of the operator in a natural dry state, dried and then coated with air spray at a coating thickness of 60 to 85 쨉 m one or two times (S50); As shown in FIG.
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본 발명은 강교에 발생되는 크랙을 자가 균열도장재를 도포하여 크랙을 방지하는 효과를 제공한다.The present invention provides an effect of preventing cracking by applying a self-cracking coating material to a crack generated in a steel bridge.
또한, 아크릴계의 하도재 도료를 나노캡슐화 하여 도포함으로 크랙 발생시 나노캡슐이 깨지거나, 산소에 노출됨으로 녹아내려 크랙을 메움으로 균열을 방지하는 효과를 제공한다.In addition, when the acrylic base coating material is applied by nanocapsulation, the nanocapsules are cracked at the time of cracking, or melted due to exposure to oxygen, thereby providing an effect of preventing cracks by filling the cracks.
또한, 하도재 도료에 세라믹 볼이 함유되어 도막의 강도와 두께를 두텁게 하는 역할을 하고, 규사로 만들어지는 미립자 구조로 표면이 거칠어 부착력을 증대시켜주는 효과를 제공한다.In addition, ceramic baseball balls are contained in the undercoating material to thicken the strength and thickness of the coating film, and it is a fine particle structure made of silica sand to provide an effect of increasing the adhesion force due to the rough surface.
또한, 고무 분말과 아라미드 섬유와 유리 섬유가 더 포함되어 혼합되어 내오염도를 높여주며, 교량의 인장 및 수축에 의해 발생되는 균열을 방지하는 효과를 제공한다.Also, rubber powder, aramid fiber, and glass fiber are mixed and added to increase the degree of contamination, and the effect of preventing cracks caused by tensile and shrinkage of bridges is provided.
또한, 상도재 도료에 폴리우레탄 수분산액을 혼합함으로 표면을 매끄럽게하고, 자외선을 차단하여 중도재 도료가 손상되지 않도록 하는 효과를 제공한다.
Also, by mixing the polyurethane water dispersion with the top coating material, the surface is smoothed, and ultraviolet rays are blocked to prevent the intermediate coating material from being damaged.
도 1은 본 발명 자가치유 성능을 가진 중방식 도장재 및 이를 이용한 도포방법에 대한 도포 블록도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an application block diagram of a self-healing coating material having self-healing properties and a coating method using the same.
이하, 바람직한 실시예에 따라 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to preferred embodiments.
본 발명은 강교에 발생되는 크랙을 방지하는 자가치유 성능을 가진 중방식 도장재 및 이를 이용한 도포방법을 제공하기 위한 것이다.The present invention is to provide a heavy-duty coating material having a self-healing property for preventing cracks generated in a steel bridge, and a coating method using the same.
본 발명은 강교 내지는 강재 플랜트에 균열을 방지하도록 도장하는 도장재에 대한 것으로, 상기 도장재는 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 하도재 도료와 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 중도재 도료와 폴리우레탄, 아크릴 폴리올 수지, 무황변 폴리 우레아 수지, 폴리 이소시아네이트 경화제로 이루어지는 상도재 도료로 이루어지는 수용성 중방식 도장용 조성물에 있어서, 상기 하도재 도료를 나노 캡슐화 하여 도포하는 것으로, 하도재 도료는 5nm ~ 20nm의 입자 크기로 이루어진다.The present invention relates to a coating material for preventing cracking in a steel bridge or a steel plant, wherein the coating material comprises a water-soluble acrylic emulsion, an intermediate coating material comprising a water-soluble acrylic emulsion and an aromatic amine curing agent, , An acrylic polyol resin, a non-yellowing polyurea resin, and a polyisocyanate curing agent, wherein the undercoating material is applied by nano-encapsulation, and the undercoat material is a coating material having a thickness of 5 nm to 20 nm Particle size.
또한, 중도재 도료에 고무 분말이 포함되고, 여기에 아라미드 섬유와 유리 섬유가 더 포함되어 혼합되는 것으로 이의 입자는 1.5㎛ ~ 4.5㎛의 크기로 이루어진다.In addition, the intermediate repainting material contains rubber powder, and the aramid fiber and the glass fiber are further mixed therein, and the particles thereof have a size of 1.5 탆 to 4.5 탆.
또한, 상기 상도재 도료에는 폴리우레탄 수분산액이 더 혼합되어 표면을 매끄럽게하고, 자외선을 차단시켜줌으로 중도재 도료가 손상되지 않도록 하는 것으로 이루어진다.In addition, the upper coating material is further mixed with a polyurethane water dispersion to smooth the surface and prevent ultraviolet rays from interfering with the intermediate coating material.
상기 나노캡슐의 제조는 계면 겔화반응법을 사용하여 제조하는 것으로, 겔화제에 의하여 캡슐을 제조한 후 캡슐벽막겔에 무기질막 형성제를 트랩 내지는 반응시킨 후 열처리하여 다공질 중공캡슐로 이루어지도록 제조하는 것을 특징으로 한다.The nanocapsules are prepared by using the interfacial gelation method. Capsules are prepared by using a gelling agent, and the inorganic membrane forming agent is reacted with a trap or an inorganic substance in a capsule wall gel, followed by heat treatment to prepare porous hollow capsules .
상기에서 보는 바와 같이, 하도재 도료에 세라계 분말과 금속분말과 세라믹 볼이 더 포함하며, 상기 세라믹계 분말과 금속분말은 1㎛ ~ 2.5㎛의 입자크기로 이루어지고, 상기 세라믹 계 분말에는 실리콘(Si), 알루미늄(Al), 타이타늄(Ti), 지르코늄(Zr)가 구비되어 있으며, 상기 세라믹계 분말에 아연, 알루미늄, 은, 동의 금속분말이 혼합되는 것으로 이루어진다.The ceramic powder and the metal powder each have a particle size of 1 to 2.5 占 퐉, and the ceramic powder includes silicon powder and metal powder, (Si), aluminum (Al), titanium (Ti) and zirconium (Zr), and the ceramic powder is mixed with zinc, aluminum, silver and copper metal powder.
상기 세라믹계 분말은 접착력, 마모성, 충격성, 내후성, 방청성을 높이기 위해 구비되는 것이다.The ceramic-based powder is provided to enhance adhesion, abrasion resistance, impact resistance, weather resistance, and rust resistance.
또한, 하도재 도료에 세라믹 볼이 함유되어 도막의 강도와 두께를 두텁게 하는 역할을 하고, 규사로 만들어지는 미립자 구조로 표면이 거칠어 부착력을 증대시켜주는 것으로 이루어진다.In addition, the coating material contains ceramic balls to thicken the strength and thickness of the coating film, and the fine particle structure made of silica sand makes the surface coarse to increase the adhesion.
본 발명에 따르면, 상기 하도재 도료의 1000중량부 중 수용성 아크릴 에멀전 600중량부, 변성 방향족 아민 경화제 200중량부, 세라믹계 분말 100중량부, 금속분말 90중량부, 세라믹 볼 10중량부로 혼합되어 이루어지며, 상기 중량부에 따라 혼합비는 6 : 2 : 1 : 0.9 : 0.1의 비율로 혼합되는 것으로 이루어진다.According to the present invention, 600 parts by weight of a water-soluble acrylic emulsion, 200 parts by weight of a modified aromatic amine curing agent, 100 parts by weight of a ceramic powder, 90 parts by weight of a metal powder and 10 parts by weight of a ceramic ball are mixed in 1000 parts by weight of the undercoat paint And mixing ratio is 6: 2: 1: 0.9: 0.1 according to the weight part.
또한, 상기 혼합되는 혼합제에 자일렌 10 ~ 25중량부, 부탄올 8 ~ 20중량부, 애니솔-100 8 ~ 20중량부가 더 혼합되는 것으로 하도재 도료가 이루어진다.10 to 25 parts by weight of xylene, 8 to 20 parts by weight of butanol and 8 to 20 parts by weight of anisole are further mixed in the mixed material to be mixed.
본 발명의 중도재 도료는 1000중량부를 기준으로 수용성 아크릴 에멀전 550중량부, 방향족 아민 경화제 250중량부가 혼합되며, 여기에 고무 분말 100중량부, 아라미드 섬유 50중량부, 유리 섬유 50중량부가 더 혼합되어 이루어지며, 상기 중량부에 따라 혼합되는 혼합비는 5.5 : 2.5 : 1 : 0.5 : 0.5의 비율로 혼합되는 것으로 이루어진다.The intermediate coating material of the present invention is prepared by mixing 550 parts by weight of a water-soluble acrylic emulsion and 250 parts by weight of an aromatic amine curing agent based on 1000 parts by weight of the rubber composition, 100 parts by weight of rubber powder, 50 parts by weight of aramid fibers and 50 parts by weight of glass fibers And the mixing ratio of the mixture according to the weight part is in the range of 5.5: 2.5: 1: 0.5: 0.5.
또한, 상기 혼합제에 자일렌 30 ~ 40중량부와 카드뮴옐로우, 카드뮴레드, 코발트블루, 황산바륨, 징크로메이트, 산화안티몬으로 이루어진 군에서 선택되는 어느 하나의 무기안료가 5 ~ 10 중량부가 더 혼합되는 것으로 중도재 도료가 이루어진다.Further, 30 to 40 parts by weight of xylene and 5 to 10 parts by weight of any one inorganic pigment selected from the group consisting of cadmium yellow, cadmium red, cobalt blue, barium sulfate, ginger chromate and antimony oxide are further mixed in the mixture A middle paint is applied.
본 발명의 상도재 도료는 1000중량부의 기준으로 폴리우레탄 300중량부, 아크릴 폴리올 수지 200중량부, 무황변 폴리 우레아 수지 200중량부, 폴리 이소시아네이트 경화제 200중량부가 혼합되며, 여기에 폴리우레탄 수분산액 100중량부가 더 포함되는 것으로 이루어진다.The top coat material of the present invention is prepared by mixing 300 parts by weight of polyurethane, 200 parts by weight of an acryl polyol resin, 200 parts by weight of a yellowish polyurea resin and 200 parts by weight of a polyisocyanate curing agent based on 1000 parts by weight of the polyurethane dispersion 100 Weight portion is further included.
상기의 혼합 중량에 따른 혼합비율은 3 : 2 : 2 : 2 : 1의 비율로 이루어지며, 상기 혼합제에 자외선 차단제 0.1 ~ 1중량부, 자외선 안정제 0.1 ~ 1중량부를 더 포함하는 것으로 상도재 도료가 이루어진다.The mixing ratio of the mixture according to the mixing weight is in the range of 3: 2: 2: 2: 1. The mixing agent further comprises 0.1 to 1 part by weight of an ultraviolet screening agent and 0.1 to 1 part by weight of a UV stabilizer. .
상기에 대한 자가 균열도장재를 이용하여 강교 내지는 강재 플랜트에 도포하는 방법으로, 상기 강교 내지는 강재 플랜트의 표면의 녹, 먼지를 그라인더를 통해 긁어내는 그라인딩 단계가 이루어지며, 상기 그라인더를 통해 긁어지거나 파쇄되는 표면을 고압 세척기를 통해 표면의 분진을 제거해주는 고압세척 단계가 이루어지며, 상기 고압세척 단계를 통해 표면을 깨끗하게 해줌으로 하도재 도료의 부착력을 높여주는 것으로 이루어진다.A grinding step of scraping rust and dust on the surface of the steel bridge or the steel plant through a grinder is performed by a method of applying the self-cracking coating material to the steel bridge or the steel plant, A high pressure washing step for removing dust on the surface is performed through a high pressure washer on the surface, and the surface is cleaned through the high pressure washing step, thereby increasing the adhesion of the coating material.
또한, 상기 고압 세척이 완료되는 표면에 에어리스 스프레이를 이용하여 하도재 도료를 도포하는 하도재 도포단계가 이루어지며, 상기 하도재 도료는 총 3회에 걸쳐 도포되는 것으로 이루어진다.Further, the undercoating material applying step of applying the undercoating material paint using airless spray is performed on the surface where the high pressure washing is completed, and the undercoating material paint is applied three times in total.
상기 하도재 도료는 90 ~ 180㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 것으로 이루어진다.The undercoating material is applied at a coating film thickness of 90 to 180 탆 once, twice or three times.
상기 하도재 도료 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조되며, 건조 후 에어리스 스프레이를 통해 중도재 도료를 도포하며 중도재 도료의 경우 총 3회에 걸쳐 도포되는 것으로 이루어진다.The above materials are dried to the extent that the hands do not touch the hands when the hands are touched with the hands in the natural dry condition after the application of the paint, and then the intermediate paint is applied through the airless spray after drying. In the case of the middle paint, .
상기 중도재 도료는 80 ~ 120㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 것으로 이루어진다.The intermediate repainting coating is applied by coating one time or twice or three times with a film thickness of 80 to 120 탆.
상기 중도재 도료 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조되며, 건조 후 에어리스 스프레이를 통해 60 ~ 85㎛의 도막 두께로 1회 또는 2회에 걸쳐 도포하는 것으로 이루어진다.When the above-mentioned intermediate coating material is applied in a natural dry state, it is dried to the extent that the hand does not touch the hands when it is touched with the hand of the operator. After drying, the coating is applied once or twice with a film thickness of 60 to 85 μm through an airless spray .
상기 하도재 도료, 중도재 도료, 상도재 도료의 도포 방법은 75㎛ 이하일 때는 1회 도포하며, 150㎛ 이상일 때는 2회에 걸쳐 도포하는 것으로 이루어지는 진다.The coating method of the primer coating material, the intermediate coating material and the top coating material is applied once when the thickness is 75 탆 or less and twice when the thickness is 150 탆 or more.
또한, 하도재 도료, 중도재 도료, 상도재 도료의 경우 현장 여건에 따라 도포되는 도막의 두께 및 도포 횟수가 변경될 수 있다.In addition, the thickness of the applied coating and the number of application may be changed according to the site conditions in case of the undercoating material, the intermediate coating material and the top coating material.
Claims (7)
상기 도장재는 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 하도재 도료와 수용성 아크릴 에멀전, 방향족 아민 경화제로 이루어지는 중도재 도료와 폴리우레탄, 아크릴 폴리올 수지, 무황변 폴리 우레아 수지, 폴리 이소시아네이트 경화제로 이루어지는 상도재 도료의 중방식 도장재에 있어서,
상기 하도재 도료를 5nm ~ 20nm 입자로 제조되는 나노 캡슐;
상기 하도재 도료에 세라믹계 분말, 금속분말, 세라믹 볼이 더 포함되고,
상기 중도재 도료에 1.5㎛ ~ 4.5㎛의 입자로 미분말화 되는 고무 분말과 아라미드 섬유와 유리 섬유가 더 포함되어 혼합되며,
상기 상도재 도료에 표면을 매끄럽게하고, 자외선을 차단하여 중도재 도료가 손상되지 않도록 혼합되는 폴리우레탄 수분산액;
를 포함하는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
A coating material for coating a steel bridge or a steel plant to prevent cracking,
The coating material is preferably a coating material comprising an undercoat paint comprising a water-soluble acrylic emulsion and an aromatic amine curing agent, a water-soluble acrylic emulsion, an intermediate coating material comprising an aromatic amine curing agent, and a top coat paint comprising a polyurethane, an acrylic polyol resin, a yellowing polyurea resin and a polyisocyanate curing agent In the interior paint of the present invention,
A nanocapsule made of the above primer coating material with a particle size of 5 nm to 20 nm;
The undercoating material further includes a ceramic powder, a metal powder, and a ceramic ball,
The intermediate paint is further mixed with rubber powder, aramid fiber and glass fiber, which are pulverized into particles of 1.5 탆 to 4.5 탆,
A polyurethane water dispersion liquid which smoothens the surface of the top coat paint and shields the ultraviolet rays to prevent the intermediate coat paint from being damaged;
Wherein the self-healing coating is a self-healing coating.
상기 하도재 도료의 나노캡슐은 계면 겔화반응법을 사용하여 겔화제에 의하여 캡슐을 제조한 후 캡슐벽막겔에 무기질막형성제를 트랩 내지는 반응 시킨 후 열처리하여 다공질 중공캡슐로 이루어지는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
The method according to claim 1,
The nanocapsule of the undercoating material is prepared by preparing a capsule by a gelling agent using an interfacial gelation method, then reacting the inorganic film-forming agent with a trap or reacting with the capsule wall gel, and then heat-treating the porous capsule. Heavy-duty coating material with healing properties.
상기 하도재 도료에 접착력, 마모성, 충격성, 내후성, 방청성을 높이기 위해 세라믹계 분말과 금속분말과 미립자 구조로 형성되는 세라믹 볼이 더 포함되며,
상기 세라믹계 분말과 금속분말은 1㎛ ~ 2.5㎛의 입자크기로 이루어지고, 상기 세라믹 계 분말에는 실리콘(Si), 알루미늄(Al), 타이타늄(Ti), 지르코늄(Zr)가 구비되어 있으며, 상기 세라믹계 분말에 아연, 알루미늄, 은, 동의 금속분말이 혼합되는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
The method according to claim 1,
In order to improve the adhesive force, abrasion resistance, impact resistance, weather resistance, and rust prevention property of the undercoat paint, the ceramic ball further includes a ceramic powder, a metal powder, and a ceramic ball,
Wherein the ceramic-based powder and the metal powder have a particle size of 1 탆 to 2.5 탆, and the ceramic-based powder includes silicon (Si), aluminum (Al), titanium (Ti), and zirconium (Zr) Characterized in that the ceramic powder is mixed with zinc, aluminum, silver and copper metal powder.
상기 하도재 도료의 1000중량부 중 수용성 아크릴 에멀전 600중량부, 변성방향족 아민 경화제 200중량부, 세라믹계 분말 100중량부, 금속분말 90중량부, 세라믹 볼 10중량부로 6 : 2 : 1 : 0.9 : 0.1 의 구성 비율로 이루어지고,
상기 하도재 도료에 자일렌 10 ~ 25중량부, 부탄올 8 ~ 20중량부, 애니솔-100 8~20중량부가 더 혼합되어 이루어지는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
The method according to claim 1,
2: 1: 0.9: 1 by weight of a water-soluble acrylic emulsion, 200 parts by weight of a modified aromatic amine curing agent, 100 parts by weight of a ceramic powder, 90 parts by weight of a metal powder and 10 parts by weight of a ceramic ball, 0.1,
Characterized in that 10 to 25 parts by weight of xylene, 8 to 20 parts by weight of butanol and 8 to 20 parts by weight of anisole are further mixed in the undercoat paint.
상기 중도재 도료의 1000중량부 중 수용성 아크릴 에멀전 550중량부, 방향족 아민 경화제 250중량부, 고무 분말 100중량부, 아라미드 섬유 50중량부, 유리 섬유 50중량부로 혼합비는 5.5 : 2.5 : 1 : 0.5 : 0.5의 구성 비율로 혼합되어 이루어지고,
상기 중도재 도료에 자일렌 30 ~ 40중량부와 카드뮴옐로우, 카드뮴레드, 코발트블루, 황산바륨, 징크로메이트, 산화안티몬으로 이루어지는 군에서 선택되는 어느 하나의 무기안료가 5 ~ 10중량부가 더 혼합되어 이루어지는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
The method according to claim 1,
The mixing ratio of the water-soluble acrylic emulsion, 250 parts by weight of the aromatic amine curing agent, 100 parts by weight of the rubber powder, 50 parts by weight of the aramid fiber and 50 parts by weight of the glass fiber was set to 5.5: 2.5: 1: 0.5: 0.5, respectively,
30 to 40 parts by weight of xylene and 5 to 10 parts by weight of any one inorganic pigment selected from the group consisting of cadmium yellow, cadmium red, cobalt blue, barium sulfate, ginger chromate and antimony oxide are further mixed Wherein the self-healing performance of the coating material is improved.
상기 상도재 도료의 1000중량부 중 폴리우레탄 300중량부, 아크릴 폴리올 수지 200중량부, 무황변 폴리 우레아 수지 200중량부, 폴리 이소시아네이트 경화제 200중량부, 폴리우레탄 수분산액 100중량부로 혼합비는 3 : 2 : 2 : 2 : 1 의 구성 비율로 혼합되어 이루어지고,
상기 상도재 도료에 자외선 차단제 0.1 ~ 1중량부, 자외선 안정제 0.1 ~ 1중량부가 더 혼합되어 이루어지는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재.
The method according to claim 1,
300 parts by weight of polyurethane, 200 parts by weight of acryl polyol resin, 200 parts by weight of non-yellowing polyurea resin, 200 parts by weight of polyisocyanate curing agent and 100 parts by weight of polyurethane water dispersion were mixed in a ratio of 3: 2 : 2: 2: 1,
Characterized in that 0.1 to 1 part by weight of an ultraviolet screening agent and 0.1 to 1 part by weight of an ultraviolet stabilizer are further mixed in the top coat paint.
강교 내지 강재 플랜트의 표면의 녹, 먼지를 그라인더를 통해 긁어내는 그라인딩 단계(S10);
상기 그라인더를 통해 긁어진 표면을 고압세척기를 통해 표면을 분진을 제거하기 위해 이루어지는 고압세척 단계(S20);
상기 고압세척기를 통한 세척 후 에어리스 스프레이를 통해 90 ~ 180㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 하도재 도포단계(S30);
상기 하도재 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조 후 에어리스 스프레이를 통해 80 ~ 120㎛의 도막 두께로 1회 또는 2회 또는 3회에 걸쳐 도포하는 중도재 도포단계(S40);
상기 중도재 도포 후 자연건조 상태에서 작업자의 손으로 만졌을 때, 손에 도료가 묻지 않는 정도로 건조 후 에어리스 스프레이를 통해 60 ~ 85㎛의 도막 두께로 1회 또는 2회에 걸쳐 도포하는 상도재 도포단계(S50);
로 도포되는 것을 특징으로 하는 자가치유 성능을 가진 중방식 도장재 도포방법.A coating method using the water-soluble, heavy-waterborne coating composition according to any one of claims 1 to 6, which is applied with a primer coating material, a middle material coating material and an upper coating material,
A grinding step (S10) of scraping rust and dust on the surface of a steel bridge or a steel plant through a grinder;
A high pressure cleaning step (S20) in which the surface scraped through the grinder is made to remove dust on the surface through a high pressure washer;
(S30), which is applied once or twice or three times with a film thickness of 90 to 180 mu m through an airless spray after washing through the high pressure washer;
When the above-mentioned undercoating material is applied, it is dried to a degree that the hand does not adhere to the paint when it is touched with the hand of the operator in a natural dry state, and then applied once or twice or three times with a film thickness of 80 to 120 탆 through an airless spray. Reapplication step S40;
After applying the above-mentioned intermediate coating composition, it is dried to such an extent that the hands are touched with the hand of the operator in a natural dry state, dried and then coated with air spray at a coating thickness of 60 to 85 쨉 m one or two times (S50);
Wherein the coating agent is applied to the surface of the coating material.
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