KR102045605B1 - A coated steel plate having excellent friction property during fabricating thereof - Google Patents

A coated steel plate having excellent friction property during fabricating thereof Download PDF

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KR102045605B1
KR102045605B1 KR1020160176400A KR20160176400A KR102045605B1 KR 102045605 B1 KR102045605 B1 KR 102045605B1 KR 1020160176400 A KR1020160176400 A KR 1020160176400A KR 20160176400 A KR20160176400 A KR 20160176400A KR 102045605 B1 KR102045605 B1 KR 102045605B1
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steel sheet
coated steel
capsule
lubricant
resins
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KR1020160176400A
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KR20180073017A (en
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김중규
강대규
조재동
박동휘
박종연
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주식회사 포스코
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/02—Carbon; Graphite

Abstract

본 발명은 캡슐이 첨가된 표면처리 물질을 아연도금강판에 코팅함으로써, 아연층의 부식을 막고 내식성을 향상시킬 뿐 아니라, 코팅된 강판이 평상시에는 가공성이 높지 않다가 가공시 주는 충격에 의해 캡슐속의 물질이 누출되어 코팅된 강판의 마찰계수를 낮게 함으로써 가공성을 향상시킨다.The present invention not only prevents the corrosion of the zinc layer and improves the corrosion resistance by coating the surface-treated material in which the capsule is added to the galvanized steel sheet, but also in the capsule by the impact that the coated steel sheet does not have high machinability during processing. Material leaks improve the workability by lowering the coefficient of friction of the coated steel sheet.

Description

가공시 마찰특성이 우수한 코팅 강판{A coated steel plate having excellent friction property during fabricating thereof}Coated steel plate having excellent friction property during fabrication

본 발명은 아연도금강판의 표면처리를 통해 내식성 향상과 가공성을 증대시킴으로써 강판의 활용성을 확대할 수 있는 기술이다.The present invention is a technology that can expand the utility of the steel sheet by improving the corrosion resistance and workability through the surface treatment of the galvanized steel sheet.

아연이라는 천연광물의 과대 사용으로 인한 자원고갈에 대한 우려로, 각국은 아연의 대체 물질 혹은 아연 사용량을 줄일 방법을 고민 중에 있다. 철강 소재에서 아연을 사용하는 이유는 철(Fe)의 부식을 막기 위해서이다. Concerned about the depletion of resources due to overuse of natural minerals called zinc, countries are considering ways to reduce the use of zinc substitutes or zinc. The reason for using zinc in steel materials is to prevent corrosion of iron (Fe).

나아가, 최근에는 고내식성을 부여하기 위하여, 아연층 위에 표면처리를 하는 방법과 함께 합금 도금층 개발 등에 주력하고 있다. 고내식성 향상을 위해 합금 도금층을 개발하는 것은 고가의 소재를 이용하게 되고, 개발된 합금 도금층의 용접성 및 단단한 도금층 특성의 문제로 인해 특수한 작업 환경이 요구된다. Furthermore, in recent years, in order to provide high corrosion resistance, it is focusing on development of alloy plating layer etc. with the method of surface treatment on a zinc layer. Developing an alloy plating layer to improve high corrosion resistance uses expensive materials, and requires a special working environment due to problems of weldability and hard plating layer characteristics of the developed alloy plating layer.

반면에, 아연층 위에 표면처리하는 방법은 내식성과 함께 내용제성 및 다른 특성들도 보완할 수 있는 장점이 있다. 아연층 위에 표면처리 하는 방법은, 부식방지제나 나노 입자 및/또는 치밀한 수지층을 코팅함으로써, 부식인자가 도금층에 도달하는 것을 억제함으로써, 내식성을 증가시키는 것이다.On the other hand, the method of surface treatment on the zinc layer has the advantage that can complement the solvent resistance and other properties in addition to the corrosion resistance. The surface treatment method on a zinc layer is to increase corrosion resistance by suppressing the corrosion factor from reaching a plating layer by coating a corrosion inhibitor, a nanoparticle, and / or a dense resin layer.

한편, 아연도금강판의 고내식성을 달성함과 동시에 마찰계수를 낮추어 강판의 가공성을 높이기 위해, 내식향상제 및 수지를 포함하는 수용성 표면처리 코팅액에 왁스나 흑연 등의 윤활성분을 추가로 첨가하는 기술이 개발되었다(한국특허출원번호 제2005-0112538호). 그러나, 이러한 강판은 운반 및 유통상에서 강판이 미끄러지는 등의 문제로 인해 제품 손상 내지 인명손상을 초래하였다.On the other hand, in order to achieve high corrosion resistance of the galvanized steel sheet and lower the friction coefficient to increase the workability of the steel sheet, a technique of adding a lubricating component, such as wax or graphite, to the water-soluble surface treatment coating liquid containing an anticorrosive enhancer and a resin is provided. (Korean Patent Application No. 2005-0112538). However, these steel sheets have caused product damage or human injury due to problems such as slipping of the steel sheet in transportation and distribution.

한국 특허출원번호 제2005-0112538호Korean Patent Application No.2005-0112538

본 발명은 표면처리강판의 내식성을 유지하면서, 가공시의 가공성을 높이고, 운반 내지 유통중에 상기 문제점을 해결하기 위한 것이다.The present invention is to improve the workability during processing while maintaining the corrosion resistance of the surface-treated steel sheet, and to solve the above problems during transportation or distribution.

본 발명은, 전압인가에 의해 코팅 상층부로 유도 가능한 윤활제 내포 캡슐을 포함하는 내식성 표면처리 코팅액을 제공하는 것이다.The present invention is to provide a corrosion-resistant surface treatment coating liquid comprising a lubricant-containing capsule which can be induced to the coating upper layer by voltage application.

상기 캡슐은 통상의 고분자 수지로 구성되며, 통상적으로 사용되는 바인더 수지라면 어떠한 것을 사용하여도 무방하다. 바람직하게는, 우레탄 수지, 아크릴 수지, 에폭시 수지, 에스테르 수지 및 올레핀 수지로 이루어진 군에서 선택되는 1종 또는 2종 이상의 수지를 사용할 수 있다. 또한, 전압인가에 영향을 받는 성분, 예를 들어 금속, 카본계열 물질을 포함하여 구성되는 것이 바람직하지만, 가공시의 충격에 내부 윤활제를 누출할 수 있다면 이에 제한되지 않는다.The capsule is composed of a conventional polymer resin, and any binder may be used as long as it is a commonly used binder resin. Preferably, one or two or more resins selected from the group consisting of urethane resins, acrylic resins, epoxy resins, ester resins and olefin resins can be used. In addition, it is preferable to include a component that is affected by voltage application, for example, a metal or a carbon-based material, but is not limited thereto as long as it can leak internal lubricants during impact during processing.

상기 윤활제는 왁스, 금속, 세라믹, 그래핀 또는 이들의 조합이 바람직한데, 가공시 마찰계수를 감소시킬 수 있다면 이에 제한되지 않는다. 또한, 전압인가에 영향을 받는 성분, 예를 들어 금속, 카본계열이 바람직하다.The lubricant is preferably wax, metal, ceramic, graphene, or a combination thereof, but is not limited thereto if it can reduce the coefficient of friction during processing. In addition, components that are affected by voltage application, such as metal and carbon series, are preferable.

상기 내식성 표면처리 코팅액은 0.5 내지 2중량%의 캡슐을 포함하는 것이 바람직하다. 윤활제 내포 캡슐이 0.5중량% 미만인 경우, 가공성이 좋지 않고, 윤활제 내포 캡슐이 2 중량%를 초과하면 내식성이 불량이었다. 캡슐의 크기는 경화된 후의 코팅층 두께의 1/10~1/3 정도가 바람직하다.The corrosion resistant surface treatment coating liquid preferably comprises 0.5 to 2% by weight of the capsule. When the lubricant-containing capsule was less than 0.5% by weight, workability was poor, and when the lubricant-containing capsule was more than 2% by weight, corrosion resistance was poor. The size of the capsule is preferably about 1/10 to 1/3 of the thickness of the coating layer after curing.

본 발명의 또다른 예는 상기 내식성 표면처리 코팅액으로 코팅한 후 전압을 인가하여, 윤활제 내포 캡슐을 상층부로 유도하여 제조된 강판을 제공하는 것이다. 이 경우, 인가되는 전압은 100~300V가 바람직하다. Another example of the present invention is to provide a steel sheet prepared by coating the corrosion-resistant surface treatment coating liquid and then applying a voltage to guide the lubricant-containing capsule to the upper layer. In this case, the applied voltage is preferably 100 to 300V.

본 발명은 캡슐이 첨가된 표면처리 물질을 아연도금강판에 코팅함으로써, 아연층의 부식을 막고 내식성을 향상시킬 뿐 아니라, 코팅된 강판의 안전한 운반 내지 유통을 담보할 수 있으며, 가공시에는 가해지는 충격에 의해 캡슐속의 물질이 누출되어 코팅된 강판의 마찰계수를 낮게 함으로써 가공성을 향상시킨다.The present invention by coating the surface-treated material with the capsule added to the galvanized steel sheet, not only to prevent corrosion of the zinc layer and improve the corrosion resistance, but also to secure the transport or distribution of the coated steel sheet, which is applied during processing The impact of the material in the capsule leaks due to the impact to lower the coefficient of friction of the coated steel sheet to improve workability.

도 1은 아연도금강판 위의 코팅층을 모사하여 도시한 것이다.Figure 1 shows a simulated coating layer on the galvanized steel sheet.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 형태를 설명한다. 그러나, 본 발명의 실시 형태는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 이하 설명하는 실시 형태로 한정되는 것은 아니다. Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

본 실시예들을 설명함에 있어서, 동일 구성에 대해서는 동일 명칭 및 부호가 사용되며, 이에 따라 중복되는 부가적인 설명은 아래에서 생락된다. 아래에서 참조되는 도면들에서는 축적비가 적용되지 않는다.In describing the embodiments, the same names and symbols are used for the same components, and thus redundant descriptions are omitted below. In the figures referenced below, the accumulation ratio does not apply.

먼저, 본 발명의 내식성 표면처리 코팅액은 수지, 내식향상제 및 물과, 윤활제를 내포한 캡슐로 구성된다. 기타 표면처리 특성을 향상시키기 위한 성분을 추가로 포함할 수 있다.First, the corrosion-resistant surface treatment coating liquid of the present invention is composed of a resin, a corrosion-improving agent and water, and a capsule containing a lubricant. Other components may be further included to improve the surface treatment properties.

본 발명의 내식성 표면처리 코팅액에 사용되는 수지는 우레탄 수지, 아크릴 수지, 에폭시 수지, 에스테르 수지 및 올레핀 수지로 이루어진 군에서 선택되는 1종 또는 2종 이상의 수지를 사용할 수 있다. As the resin used in the corrosion resistant surface treatment coating liquid of the present invention, one or two or more resins selected from the group consisting of urethane resins, acrylic resins, epoxy resins, ester resins and olefin resins can be used.

본 발명의 내식성 표면처리 코팅액에는 본 발명의 사상을 벗어나지 않는 한, 통상의 내식향상제를 사용할 수 있다.As the corrosion-resistant surface treatment coating liquid of the present invention, any conventional corrosion-improving agent can be used without departing from the spirit of the present invention.

본 발명의 내식성 표면처리 코팅액에 첨가되는 캡슐의 성분은 다음과 같다. 캡슐을 구성하는 수지로는 통상의 고분자 수지가 가능하며, 통상적으로 사용되는 바인더 수지라면 어떠한 것을 사용하여도 무방하다. 바람직하게는, 우레탄 수지, 아크릴 수지, 에폭시 수지, 에스테르 수지 및 올레핀 수지로 이루어진 군에서 선택되는 1종 또는 2종 이상의 수지를 사용할 수 있다. 보다 바람직하게는, 우레탄 수지를 사용할 수 있다. 상기 고분자 수지는 상기 바인더 수지 이외에도 경화제, 내식향상제 등을 더 포함할 수 있다. 상기 고분자 수지는 가공시의 충격에 내부 윤활제를 누출할 수 있다면 이에 제한되지 않는다. 또한, 전압인가에 영향을 받는 성분, 예를 들어 금속, 카본계열이 바람직하다.The components of the capsule added to the corrosion resistant surface treatment coating liquid of the present invention are as follows. As the resin constituting the capsule, a normal polymer resin may be used, and any resin may be used as long as it is a binder resin that is commonly used. Preferably, one or two or more resins selected from the group consisting of urethane resins, acrylic resins, epoxy resins, ester resins and olefin resins can be used. More preferably, urethane resin can be used. In addition to the binder resin, the polymer resin may further include a curing agent and an anticorrosive agent. The polymer resin is not limited to this, as long as it can leak internal lubricants upon impact during processing. In addition, components that are affected by voltage application, such as metal and carbon series, are preferable.

상기 캡슐 내부에 포함되는 윤활제 성분으로는 왁스, 금속, 세라믹, 카본계 물질(그래핀, 흑연 등) 또는 이들의 조합이 가능하다. 또한, 전압인가에 영향을 받는 성분, 예를 들어 금속, 카본계열이 바람직하다.The lubricant component included in the capsule may be a wax, a metal, a ceramic, a carbon-based material (graphene, graphite, etc.) or a combination thereof. In addition, components that are affected by voltage application, such as metal and carbon series, are preferable.

본 발명의 또다른 예는 상기 내식성 표면처리 코팅액으로 코팅한 후 전압을 인가하여, 윤활제 내포 캡슐을 상층부로 유도하여 제조된 강판을 제공하는 것이다. 이 경우, 인가되는 전압은 100~300V가 바람직하다. 인가되는 전압이 100V 미만이면, 윤활제 내포 캡슐의 코팅층 상부로의 유도가 부족하여 가공시 원하는 마찰계수 저하를 확보할 수 없고, 인가되는 전압이 300V를 초과하면 코팅층 자체가 손상되어 코팅층을 형성할 수 없다.Another example of the present invention is to provide a steel sheet prepared by coating the corrosion-resistant surface treatment coating liquid and then applying a voltage to guide the lubricant-containing capsule to the upper layer. In this case, the applied voltage is preferably 100 to 300V. If the applied voltage is less than 100V, the induction of the lubricant encapsulation capsule to the upper coating layer is insufficient to ensure the desired reduction of the friction coefficient during processing, and if the applied voltage exceeds 300V, the coating layer itself may be damaged to form a coating layer. none.

이하에서는 본 발명의 구체적인 실시예를 설명한다.Hereinafter, specific embodiments of the present invention will be described.

먼저, 캡슐화 단계는, 분산된 CEG(CNT-Exfoliated-Graphene) 혹은 나노금속이 균일하게 흡착된 CEG 100 중량부와, 이에 대해서 부가중합될 수 있는 에틸렌기를 포함하는 한 종류 이상의 단량체 100~10,000 중량부를 투입하여 중합반응시켜서 마이크로 캡슐화하였다. 이러한 마이크로캡슐화 중합단계는 유화중합, 현탁중합 및 벌크 중합 등을 모두 사용할 수 있다. 이와 같이 제조된 캡슐은 가공시 일정 이상의 압력이 가해지면 캡슐이 용이하게 깨져서, 내포한 윤활제를 누출한다.First, the encapsulation step, 100 parts by weight of one or more types of monomers including dispersed CEG (CNT-Exfoliated-Graphene) or 100 parts by weight of CEG uniformly adsorbed nanoparticles, and ethylene group that can be added polymerization thereto It was charged and polymerized and microencapsulated. The microencapsulation polymerization step can be used both emulsion polymerization, suspension polymerization and bulk polymerization. The capsule thus prepared is easily broken when a certain pressure is applied during processing, and leaks the contained lubricant.

아크릴수지, 내식향상제 등을 포함하는 내식성 코팅액에 상기 윤활제 내포 캡슐을 0.1, 1, 5, 10 중량% 균일하게 혼합하였다. 0.1, 1, 5, 10% by weight of the lubricant-containing capsules were uniformly mixed in a corrosion-resistant coating solution containing an acrylic resin, an anticorrosive enhancer, and the like.

이와 같이 제조된 내식성 표면처리 코팅액을 캐스팅, 닥터블레이드 등의 방법으로 강판에 코팅하고, 50V, 100V, 200V, 300V, 400V의 전압을 1~2초 동안 각각 인가하여, 캡슐을 유도한 후, 온도 180도에서 건조시켰다.The anticorrosive surface treatment coating solution thus prepared was coated on a steel sheet by casting, doctor blade, etc., and voltages of 50 V, 100 V, 200 V, 300 V, and 400 V were applied for 1 to 2 seconds to induce capsules, and then Dry at 180 degrees.

상기 코팅된 강판을 컵드로잉(Cup Drawing) 시험으로 가공성을 검증하고, 연속염수분무 시험으로 내식성을 검증하였다.The coated steel sheet was verified for workability by a cup drawing test, and corrosion resistance was verified by a continuous salt spray test.

윤활제 내포 캡슐을 1중량% 첨가하였을 때, 가장 우수한 가공성을 나타내고, 내식성에서도 무난한 결과를 나타내었다. 윤활제 내포 캡슐이 0.5중량% 미만인 경우, 가공성이 좋지 않고, 윤활제 내포 캡슐이 2 중량%를 초과하면 내식성이 불량이었다.When 1% by weight of the lubricant-containing capsule was added, it showed the best workability, and showed good results even in corrosion resistance. When the lubricant-containing capsule was less than 0.5% by weight, workability was poor, and when the lubricant-containing capsule was more than 2% by weight, corrosion resistance was poor.

나아가, 아래 표 1에 나타낸 바와 같이, 윤활제 내포 캡슐을 1 중량% 첨가한 코팅액을 200V로 전압을 인가하여 제조된 경우에 가공성 및 내식성이 가장 우수하였다. 실험 결과를 아래 표 1에 나타내었다.Furthermore, as shown in Table 1 below, when the coating liquid containing 1% by weight of the lubricant-containing capsule was prepared by applying a voltage at 200V, the processability and the corrosion resistance were the best. The experimental results are shown in Table 1 below.

인가 전압Applied voltage 50V50 V 100V100 V +200V+200 V 300V300 V 400V400 V 가공성 평가
(컵드로잉 증가율)Machinability Evaluation
(Cup drawing growth rate) -- 5%5% 10%10% 10%10% -- 내식성 평가 (백청발생시전, SST)Corrosion resistance evaluation (before casting, SST) 72Hr72Hr 72Hr72Hr 72Hr72Hr 48Hr48Hr 48Hr48Hr

이상에서 본 발명의 실시예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고, 청구범위에 기재된 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 수정 및 변형이 가능하다는 것은 당 기술분야의 통상의 지식을 가진 자에게는 자명할 것이다.Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations can be made without departing from the technical spirit of the present invention described in the claims. It will be obvious to those of ordinary skill in the field.

Claims (10)

강판; 및
상기 강판의 적어도 일면에 전압인가에 의해 코팅 상층부로 유도 가능한 윤활제 내포 캡슐을 포함하는 내식성 표면처리 코팅액을 코팅하여 형성된 코팅층;을 포함하고,
상기 코팅층에 100~300V의 전압을 인가하여, 상기 윤활제 내포 캡슐이 코팅층 상층부에 농화된 것인 표면처리 코팅강판.
Steel plate; And
And a coating layer formed on at least one surface of the steel sheet by coating a corrosion-resistant surface treatment coating solution including a lubricant-containing capsule which can be induced into the coating upper layer by applying a voltage.
Applying a voltage of 100 ~ 300V to the coating layer, the lubricant-containing capsule is a surface-treated coated steel sheet concentrated in the upper layer coating layer.
제1항에 있어서, 상기 캡슐이 우레탄 수지, 아크릴 수지, 에폭시 수지, 에스테르 수지 및 올레핀 수지로 이루어진 군에서 선택되는 1종 또는 2종 이상의 수지로 구성되는 표면처리 코팅강판.
The coated steel sheet according to claim 1, wherein the capsule is made of one or two or more resins selected from the group consisting of urethane resins, acrylic resins, epoxy resins, ester resins, and olefin resins.
제2항에 있어서, 상기 캡슐을 구성하는 수지가 전압인가에 의해 영향을 받는 성분을 추가로 포함하는 표면처리 코팅강판.
The coated steel sheet according to claim 2, wherein the resin constituting the capsule further comprises a component which is affected by voltage application.
제1항에 있어서, 상기 윤활제가 왁스, 금속, 세라믹, 그래핀, 흑연 또는 이들의 조합인 표면처리 코팅강판.
The coated steel sheet of claim 1, wherein the lubricant is wax, metal, ceramic, graphene, graphite, or a combination thereof.
제1항에 있어서, 상기 윤활제가 전압인가에 의해 영향을 받는 성분을 포함하는 표면처리 코팅강판.
The coated steel sheet of claim 1, wherein the lubricant comprises a component that is affected by voltage application.
제1항에 있어서, 상기 윤활제가 CEG(CNT-Exfoliated-Graphene) 혹은 나노금속이 균일하게 흡착된 CEG인 표면처리 코팅강판.
The coated steel sheet of claim 1, wherein the lubricant is CEG (CNT-Exfoliated-Graphene) or CEG in which nanometals are uniformly adsorbed.
제1항에 있어서, 상기 코팅액 중 캡슐이 0.5 내지 2중량%인 표면처리 코팅강판.
The coated steel sheet of claim 1, wherein the capsule in the coating solution is 0.5 to 2% by weight.
제1항에 있어서, 캡슐의 크기는 경화된 후의 코팅층 두께의 1/10~1/3인, 표면처리 코팅강판.
The coated steel sheet of claim 1, wherein the size of the capsule is 1/10 to 1/3 of the thickness of the coating layer after curing.
삭제delete 삭제delete
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