KR20050006677A - Windshield wiper blade coating composition, its coating method and its application - Google Patents
Windshield wiper blade coating composition, its coating method and its application Download PDFInfo
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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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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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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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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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- C09D183/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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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- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
Description
본 발명은 차량용 와이퍼 블레이드 코팅 조성물, 이의 코팅방법 및 이를 적용한 차량용 와이퍼에 관한 것으로, 차량용 앞유리의 양호한 시계(視界)를 확보하기 위해 필수불가결한 차량용 와이퍼 블레이드 코팅 조성물, 이의 코팅방법 및 이를 적용한 차량용 와이퍼 블레이드에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiper blade coating composition, a coating method thereof, and a vehicle wiper using the same, wherein the vehicle wiper blade coating composition, a coating method thereof, and a vehicle using the same are indispensable for securing a good visibility of a vehicle windshield. Relates to a wiper blade.
차량용 와이퍼 블레이드는 차량의 앞유리에 부착된 빗물이나, 먼지 등을 닦아낸다. 그러나, 비가 많이 내리는 경우 등 빗물이 상기 제거된 부분에 체류하고, 시계(視界)가 상당히 불량하게 된다. 또한, 자동세차기의 왁스가 차량 앞유리에 부착되어 유막을 형성하여 야간 운전시 등에 난반사를 일으키게 되어 시계가 상당히 불량하게 된다. 또한, 유막이 형성되면 와이퍼 블레이드가 떨리고, 원활하게 작동하지 않게 되는 문제가 있다.The car wiper blade wipes off rain or dust attached to the windshield of the car. However, the rain water stays in the removed portion, such as when it rains a lot, and the clock becomes considerably poor. In addition, the wax of the automatic car wash is attached to the windshield of the vehicle to form an oil film, causing diffuse reflection at night driving and the like, which makes the clock considerably poor. In addition, if the oil film is formed, there is a problem that the wiper blade is shaken and does not operate smoothly.
이러한 문제를 해소하기 위한 방법으로서 차량의 앞유리면에 발수(撥水) 처리제를 도포하고, 발수 피막을 형성시켜서 빗방울을 비산하기 쉽게 하는 방법이 널리 이용되고 있다. 그러나, 양호한 시계를 확보하기 위해서는 와이퍼를 작동시켜 차량의 앞유리면의 빗물과 먼지를 제거할 필요가 있다. 발수 처리한 차량의 앞유리면에 와이퍼 블레이드를 작동시키면, 발수 피막은 와이퍼 블레이드에 의한 마찰로 서서히 소멸되고, 단기간에 그 효과가 저하되어 버린다. 또한 발수제를 차량의 앞유리에 도포하는 작업은 상당히 번거로운 공정이다. 또한, 차량 앞유리에 발수처리를 하면, 앞유리의 표면에 수막이 형성되지 않기 때문에, 와이퍼 블레이드가 원활하게 작동하지 않고, 떨림이 생기는 문제가 있다.As a method for solving such a problem, a method of applying a water repellent treatment agent to the windshield surface of a vehicle and forming a water repellent coating to easily scatter raindrops has been widely used. However, in order to secure a good view, it is necessary to operate the wiper to remove rainwater and dust on the windshield surface of the vehicle. When the wiper blade is operated on the windshield surface of the water repellent treated vehicle, the water repellent coating gradually disappears due to the friction caused by the wiper blade, and its effect is reduced in a short time. Also, applying water repellent to the windshield of a vehicle is a very cumbersome process. In addition, when the vehicle windshield is subjected to a water repellent treatment, since no water film is formed on the surface of the windshield, the wiper blade does not operate smoothly, and there is a problem that vibration occurs.
차량용 도료 조성물에 있어서, 예를 들어 미국특허 제5,115,007호에는, 하이드록실 말단의 수소화 디엔 폴리머 또는 폴리올레핀을 포함하는 블록 폴리우레탄 프리폴리머, 가교제 및 실리콘 오일을 포함하는 코팅 조성물이 기재되어 있으나, 상기 조성물은 차량의 EPDM 유리 런 채널 등을 코팅하는데 적용하며, 차량의 앞유리에 있어서 양호한 시계를 얻고, 발수 효과를 극대화시키는데는 역부족이었다.In automotive coating compositions, for example, US Pat. No. 5,115,007 describes a coating composition comprising a block polyurethane prepolymer, a crosslinking agent and a silicone oil comprising a hydroxylated hydrogenated diene polymer or polyolefin, but the composition is It was applied to coating the vehicle's EPDM glass run channel and the like, and it was not sufficient to obtain a good watch and maximize the water repellent effect on the windshield of the vehicle.
전술한 문제를 해결하기 위해, 본 발명자는 흑연, 이황산몰리브덴(MoSO2), 폴리테트라플루오로에틸렌(PTFE) 등의 고체분말을 함유하는 차량 코팅용 도료를 와이퍼 블레이드 부분, 즉 와이퍼 블레이드의 립(lip) 부에 코팅함으로써, 차량의 앞유리면과 와이퍼 블레이드의 마찰을 경감시키고, 발수 피막의 수명을 연장할 수 있으며, 와이퍼의 작동성을 향상시킬 수 있음을 발견하였다.In order to solve the above-mentioned problems, the present inventors have applied a coating material for vehicle coating containing solid powder such as graphite, molybdenum disulfide (MoSO 2 ), polytetrafluoroethylene (PTFE), etc., to the wiper blade portion, that is, the lip of the wiper blade. It has been found that by coating on the lip portion, friction between the windshield surface of the vehicle and the wiper blade can be reduced, the life of the water repellent coating can be extended, and the operability of the wiper can be improved.
따라서, 본 발명의 목적은 차량의 앞유리에 별도의 발수 처리공정을 실시하지 않고도, 양호한 시계를 확보할 수 있고, 와이퍼 블레이드의 작동을 원활하게 할 수 있는 차량용 와이퍼 블레이드 코팅 조성물을 제공하는데 있다.Accordingly, an object of the present invention is to provide a wiper blade coating composition for a vehicle that can secure a good field of view and can smoothly operate the wiper blade without performing a separate water repellent treatment process on the windshield of the vehicle.
또한, 본 발명의 다른 목적은 상기 차량용 코팅 조성물을 와이퍼 블레이드에 코팅하는 방법 및 이렇게 제조된 와이퍼 블레이드를 제공하는데 있다.In addition, another object of the present invention is to provide a method for coating the vehicle coating composition on the wiper blade and the wiper blade manufactured as described above.
상기 목적을 달성하기 위한 본 발명에 따른 차량용 와이퍼 블레이드 코팅 조성물은, 용매 존재하에서 폴리올 수지, 우레탄 수지, 수산기 함유 불소 수지, 에폭시 수지 및 실리콘 수지로 이루어진 군으로부터 선택된 결합제 100중량부에 대하여, 흑연을 필수성분으로 포함하며, 평균입경이 2∼15㎛인 고체윤활 미분말 10∼1200중량부; 및 디메틸 실리콘오일을 필수성분으로 포함하며, 20℃에서의 10∼500,000cSt의 점도를 갖는 실리콘오일 50∼2000중량부;를 포함하는 것을 특징으로 한다.Vehicle wiper blade coating composition according to the present invention for achieving the above object, in the presence of a solvent, the graphite to 100 parts by weight of the binder selected from the group consisting of polyol resin, urethane resin, hydroxyl group-containing fluorine resin, epoxy resin and silicone resin 10 to 1200 parts by weight of fine lubricating fine powder, which is included as an essential component and has an average particle diameter of 2 to 15 µm; And 50 to 2000 parts by weight of silicone oil having a viscosity of 10 to 500,000 cSt at 20 ° C., including dimethyl silicone oil as an essential component.
상기 다른 목적을 달성하기 위한 본 발명에 따른 차량용 와이퍼 블레이드의 코팅방법은, 전술한 차량용 와이퍼 블레이드 코팅 조성물을 차량용 와이퍼의 블레이드 부분에 5∼30㎛의 막두께로 형성시키며, 이렇게 제조된 차량용 와이퍼 블레이드를 얻는 것을 특징으로 한다.Coating method for a vehicle wiper blade according to the present invention for achieving the above another object, to form the above-described vehicle wiper blade coating composition on the blade portion of the vehicle wiper with a film thickness of 5 ~ 30㎛, the vehicle wiper blade thus manufactured Characterized in that obtains.
이하 본 발명을 좀 더 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail.
전술한 바와 같이, 본 발명은 실리콘 오일 및 고체윤활 미분말을 용매하에서 결합제와 함께 분산한 코팅 조성물을 얻고, 이를 적어도 와이퍼 블레이드의 립부에 표층부로서 적용, 즉 5∼30㎛의 막두께로 코팅층을 형성시켜 와이퍼 블레이드를 얻는 것으로, 본 발명에 따르면 상기 코팅 조성물에 함유하는 발수 성분인 실리콘 오일이 와이퍼 블레이드로부터 서서히 용출되어, 와이퍼 블레이드와 접촉되는 차량의 앞유리면에 자동적으로 발수 피막을 형성시킬 수 있다. 따라서, 본 발명에 따라 제조된 와이퍼 블레이드를 사용하면, 차량의 앞유리면에 발수 처리제를 별도로 도포할 필요가 없으면서도, 발수 효과의 내구성이 우수하다. 또한, 고체윤활 분말의 효과에 의해 원활하고 떨림이 없는 작동을 실현할 수 있는 것이다.As described above, the present invention obtains a coating composition in which a silicone oil and a solid lubricated fine powder are dispersed together with a binder in a solvent, and at least applied to the lip of the wiper blade as a surface layer portion, that is, to form a coating layer with a film thickness of 5 to 30 μm. According to the present invention, the silicone oil, which is a water repellent component contained in the coating composition, is gradually eluted from the wiper blade, thereby automatically forming a water repellent coating on the windshield surface of the vehicle in contact with the wiper blade. Therefore, when the wiper blade manufactured according to the present invention is used, the durability of the water repellent effect is excellent without the need to apply a water repellent treatment agent to the windshield surface of the vehicle separately. In addition, the smooth lubrication-free operation can be realized by the effect of the solid lubrication powder.
본 발명에 따른 차량용 와이퍼 블레이드 코팅 조성물은 용매 존재하에서 결합제 100중량부에 대하여, 고체윤활 미분말 및 실리콘오일을 필수적으로 포함한다.The vehicular wiper blade coating composition according to the present invention essentially comprises a solid lubricated fine powder and silicone oil with respect to 100 parts by weight of the binder in the presence of a solvent.
본 발명에 있어서 사용가능한 용매는, 메틸에틸케톤, 톨루엔, 자일렌, 이소프로필알콜 및 부틸아세테이트로 이루어진 군으로부터 선택될 수 있으며, 용매의 조합은 주수지에 따라 변할 수 있고, 2종 이상 적절히 배합하여 사용할 수 있다. 또한, 상기 용매의 배합량은 결합제 100중량부에 대하여 800∼8000중량부로 사용할 수 있다. 상기 용매의 조합 및 사용은 특별히 한정되지 않으나, 특히 비점이 낮은 톨루엔, 메틸에틸케톤을 주로 하여, 여기에 비점이 높은 자일렌, 이소프로필알콜, 부틸아세테이트를 조합하여 사용하는 것이 바람직하며, 비점이 낮은 용매 100중량부에 대해 비점이 높은 용매 10∼60중량부를 첨가할 수 있다.The solvent usable in the present invention may be selected from the group consisting of methyl ethyl ketone, toluene, xylene, isopropyl alcohol and butyl acetate, and the combination of solvents may vary depending on the main resin, and two or more kinds may be appropriately blended. Can be used. In addition, the compounding quantity of the said solvent can be used 800-8000 weight part with respect to 100 weight part of binders. Although the combination and use of the solvent are not particularly limited, it is particularly preferable to use a mixture of xylene, isopropyl alcohol and butyl acetate having a high boiling point, mainly toluene and methyl ethyl ketone having a low boiling point. 10 to 60 parts by weight of a high boiling point solvent can be added to 100 parts by weight of a low solvent.
본 발명에서 사용가능한 결합제는, 코팅 조성물의 차량용 와이퍼 블레이드에 대한 밀착성 및 블레이드의 신장성에 대한 추수(追隨)성을 갖기 위해 사용되며, 폴리올 수지, 우레탄 수지, 수산기 함유 불소 수지, 에폭시 수지 및 실리콘 수지로 이루어진 군으로부터 선택된다. 좀 더 구체적으로는, 폴리올 수지에는 폴리에스테르 폴리올 수지, 폴리에테르 폴리올 수지 등을 들 수 있고, 우레탄 수지에는 우레탄 수지, 실리콘변성 우레탄 수지 등을 들 수 있으며, 에폭시 수지에는 우레탄변성 에폭시 수지, 디글리시딜에스테르 수지 등을 들 수 있고, 실리콘 수지에는 실리콘 수지, 디-메틸 치환된 히드록시 말단의 실리콘 및 실록산, 실리콘계 고무 등을 들 수 있으며, 상기 실리콘계 고무에는 디메틸실리콘 생고무, 메틸페닐비닐실리콘 생고무, 메틸비닐실리콘 생고무, 및 플루오로실리콘 생고무 등을 들 수 있다. 따라서, 상기 결합제는 와이퍼 블레이드에 대한 밀착성, 블레이드의 신장성에 대한 추수성 등을 필요한 성능에 따라 만족한다면, 단독 또는 2종 이상을 병용하여도 상관없다.The binder usable in the present invention is used to have a coating composition for adhesion to a vehicle wiper blade and harvestability of the blade elongation, polyol resin, urethane resin, hydroxyl-containing fluorine resin, epoxy resin and silicone resin It is selected from the group consisting of. More specifically, polyol resins include polyester polyol resins, polyether polyol resins, and the like. Urethane resins include urethane resins, silicone-modified urethane resins, and epoxy resins include urethane-modified epoxy resins and diglyes. And the like, and silicone resins include silicone resins, di-methyl-substituted hydroxy-terminated silicones and siloxanes, silicone rubbers, and the like. The silicone rubbers include dimethylsilicone raw rubber, methylphenylvinylsilicone raw rubber, Methyl vinyl silicone raw rubber, fluorosilicone raw rubber, and the like. Therefore, as long as the binder satisfies the adhesion to the wiper blade, the harvestability to the elongation of the blade according to the required performance, it may be used alone or in combination of two or more.
본 발명에서 사용가능한 고체윤활 미분말은, 흑연을 필수성분으로 하며, 선택적으로 MoSO2, 폴리테트라플루오로에틸렌(PTFE), 질화붕소, 실리콘 수지, 나일론 수지, 및 폴리에틸렌 수지로 이루어진 군으로부터 적어도 하나 이상 선택된 미분말을 추가적으로 사용할 수 있으며, 특히 인편상의 천연흑연이 바람직하다. 상기 고체윤활 분말의 평균입경은 2∼15㎛인 것이 바람직하며, 상기 평균입경이 2㎛ 미만이면 윤활성을 얻을 수 없고, 15㎛를 초과하면 와이퍼 블레이드의 불식성(닦임성)이 저하되게 된다. 본 발명에 있어서, 고체윤활 분말은 흑연 단독, 또는 전술한 성분을 2종 이상 병용하여도 상관없다. 또한, 상기 고체윤활 분말의 배합량은 상기 결합제 100중량부에 대해, 10∼1200중량부가 사용되고, 바람직하게는 80∼870중량부, 더욱 바람직하게는 50∼520중량부이다. 또한, 상기 고체윤활 분말에 있어서 흑연의 함량은 결합제 100중량부에 대하여 50∼520중량부로 포함되는 것이 바람직하다.The solid lubricating fine powder usable in the present invention is graphite as an essential component, and optionally at least one selected from the group consisting of MoSO 2 , polytetrafluoroethylene (PTFE), boron nitride, silicone resin, nylon resin, and polyethylene resin. Selected fine powders may additionally be used, in particular flaky natural graphite. It is preferable that the average particle diameter of the said solid lubrication powder is 2-15 micrometers, and when the said average particle diameter is less than 2 micrometers, lubricity cannot be obtained, and when the average particle diameter exceeds 15 micrometers, the wiping blade (wipe) will fall. In the present invention, the solid lubricating powder may be used alone or in combination of two or more of the above components. In addition, the compounding quantity of the said solid lubrication powder is 10-1200 weight part with respect to 100 weight part of said binders, Preferably it is 80-870 weight part, More preferably, it is 50-520 weight part. In addition, the content of graphite in the solid lubrication powder is preferably included in 50 to 520 parts by weight based on 100 parts by weight of the binder.
본 발명에서 사용가능한 실리콘오일은, 디메틸 실리콘오일을 필수성분으로 포함하며, 선택적으로 메틸페닐 실리콘오일, 메틸하이드로디엔 실리콘오일, 아미노변성 실리콘오일, 카르복실변성 실리콘오일, 카르비놀변성 실리콘오일, 페놀변성 실리콘오일, 및 폴리디메틸실록산 변성물로 이루어진 군으로부터 적어도 하나 이상의 실리콘 오일을 추가적으로 사용할 수 있으며, 특히 디메틸 실리콘이 바람직하다. 또한 상기 실리콘오일은 점도가 낮을수록 초기 발수성에는 우수하지만 내구성에 열악하며, 점도가 높을수록 초기 발수성에 열악하지만 내구성에 우수하다. 본 발명에 있어서, 상기 실리콘오일의 점도는 20℃에 있어서 10cSt∼500,000cSt가 바람직하다. 또한, 상기 실리콘오일의 배합량은 상기 결합제 100중량부에 대해 50∼2000중량부가 사용되며, 바람직하게는 200∼1400중량부이다. 또한, 상기 실리콘 오일은 성능을 만족한다면, 디메틸 실리콘오일 단독, 또는 전술한 성분을 2종 이상 병용하여도 상관없다.The silicone oil usable in the present invention includes dimethyl silicone oil as an essential component, and optionally methylphenyl silicone oil, methylhydrodiene silicone oil, amino modified silicone oil, carboxyl modified silicone oil, carbinol modified silicone oil, phenol modified At least one silicone oil can be additionally used from the group consisting of silicone oil, and polydimethylsiloxane modified, with dimethyl silicone being particularly preferred. In addition, the lower the viscosity of the silicone oil is excellent in initial water repellency but poor in durability, the higher the viscosity is poor in initial water repellency but excellent in durability. In the present invention, the viscosity of the silicone oil is preferably 10 cSt to 500,000 cSt at 20 ° C. In addition, the compounding quantity of the said silicone oil is 50-2000 weight part with respect to 100 weight part of said binders, Preferably it is 200-1400 weight part. Moreover, as long as the said silicone oil satisfies performance, you may use together dimethyl silicone oil alone or 2 or more types of above-mentioned components.
또한, 본 발명의 코팅 조성물의 강도를 향상하고 오일을 담지하기 위해 충진제를 추가적으로 사용할 수 있다. 상기 충진제는 미분말 실리카 분말, 다공성 실리카 분말, 다공성 아크릴비즈 분말, 우레탄 분말 및 실리콘 고무 분말로 이루어진 군으로부터 적어도 하나 이상 선택되며, 특히 실리콘 고무 분말이 바람직하다. 원하는 성능을 만족한다면, 전술한 성분 단독 또는 2종 이상을 병용하여도 상관없다. 또한, 상기 충진제는 0.005∼6㎛의 평균입경을 갖는다. 또한, 상기 결합제 100중량부에 대하여 3∼500중량부로 사용되며, 바람직하게는 30∼350중량부이다. 본 발명에 있어서, 충진제를 사용하게 되면, 실리콘오일을 흡수, 담지시키기 때문에, 코팅 조성물의 보강 효과외에도, 오일을 도막중에 장기간 보존, 유지시키고, 발수성의 효과를 지속시킬 수 있다.In addition, fillers may be additionally used to enhance the strength of the coating composition of the present invention and to support oil. The filler is at least one selected from the group consisting of fine powder silica powder, porous silica powder, porous acrylic beads powder, urethane powder and silicone rubber powder, and silicone rubber powder is particularly preferable. If the desired performance is satisfied, the above-described components alone or two or more kinds may be used in combination. In addition, the filler has an average particle diameter of 0.005 ~ 6㎛. In addition, it is used in 3 to 500 parts by weight with respect to 100 parts by weight of the binder, preferably 30 to 350 parts by weight. In the present invention, when the filler is used, the silicone oil is absorbed and supported, so that in addition to the reinforcing effect of the coating composition, the oil can be stored and maintained for a long time in the coating film and the water repellent effect can be maintained.
그 밖에 상기 코팅 조성물에는, 폴리이소시아네이트, 폴리아미드아민, 지방족 폴리아민, 지환족디아민, 및 제3급 아민으로 추가적으로 사용할 수 있으며, 그 사용량은 상기 결합제 100중량부에 대하여 10∼100중량부이다. 또한, 주수지 또는 주제와 경화제의 혼합물의 경화를 촉진시키기 위해 주석, 백금 및 유기과산화물로 이루어진 군으로부터 선택되는 경화촉매를 상기 결합제 100중량부에 대하여 0.01∼10중량부로 첨가할 수도 있다.In addition to the coating composition, polyisocyanate, polyamideamine, aliphatic polyamine, cycloaliphatic diamine, and tertiary amine can be additionally used, and the amount thereof is 10 to 100 parts by weight based on 100 parts by weight of the binder. In addition, a curing catalyst selected from the group consisting of tin, platinum and organic peroxides may be added in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the binder to promote curing of the main resin or the mixture of the main agent and the curing agent.
전술한 본 발명에 따른 코팅 조성물은 상기 결합제를 용매에 희석하고, 그 용액중에 실리콘 오일 및 고체 윤활제를 필수적으로 혼합, 분산시켜 제조되며, 필요에 따라 경화제 및 촉진제를 더할 수 있으며, 이렇게 제조된 코팅 조성물을 차량용 와이퍼의 블레이드 부분, 즉 립부에 5∼30㎛, 바람직하게는 5∼15㎛의 막두께로 형성시키게 된다. 상기 코팅의 방법은 스프레이, 딥핑, 브러쉬 도장 등을 들 수 있으며, 코팅 후 가열경화시킨다. 상기 가열경화는 50∼180℃에서 30∼60분간이 바람직하고, 결합제의 경화온도 및 와이퍼 블레이드 재질의 내열온도를 고려하고, 가열온도를 설정한다.The coating composition according to the present invention described above is prepared by diluting the binder in a solvent and essentially mixing and dispersing the silicone oil and the solid lubricant in the solution, and adding a curing agent and an accelerator as necessary, and the coating thus prepared. The composition is formed to a film thickness of 5 to 30 탆, preferably 5 to 15 탆, on the blade portion of the vehicle wiper, that is, the lip portion. The coating method may include spraying, dipping, brush coating, and the like, followed by heat curing after coating. The heat curing is preferably for 30 to 60 minutes at 50 to 180 ℃, considering the curing temperature of the binder and the heat resistance temperature of the wiper blade material, and sets the heating temperature.
또한, 본 발명의 조성물을 코팅할 수 있는 와이퍼 블레이드에는, 천연고무, 에틸렌-프로필렌 고무, 이소프로필렌 고무, 스틸렌-부타디엔 고무, 클로로프렌 고무, 불소 고무, 실리콘 고무, 및 이들의 혼합 고무 등을 들 수 있다. 특히, 난밀착성 재료는 필요에 따라 실란계 프라이머 처리를 실시하고 나서 코팅할 수 있다.In addition, the wiper blade which can coat the composition of the present invention includes natural rubber, ethylene-propylene rubber, isopropylene rubber, styrene-butadiene rubber, chloroprene rubber, fluorine rubber, silicone rubber, mixed rubber thereof, and the like. have. In particular, the hard-adhesive material can be coated after performing a silane primer treatment as necessary.
하기 실시예 및 비교예를 통해, 본 발명을 좀 더 구체적으로 살펴보지만, 이에 본 발명의 범위가 한정되는 것은 아니다.Through the following examples and comparative examples, the present invention will be described in more detail, but the scope of the present invention is not limited thereto.
실시예 1Example 1
메틸에틸케톤 3700중량부, 톨루엔 2600중량부, 및 부틸아세테이트 1300중량부를 혼합하여 이루어진 용매에 결합제인 폴리에스테르 폴리올 수지 100중량부를 용해시키고, 상기 용액에 충진제로서 평균입경 3㎛의 실리콘 고무 350중량부를, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 520중량부를, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 520중량부를 혼합하고, 분산시켜 코팅 조성물을 얻었다.100 parts by weight of a polyester polyol resin as a binder was dissolved in a solvent obtained by mixing 3700 parts by weight of methyl ethyl ketone, 2600 parts by weight of toluene, and 1300 parts by weight of butyl acetate, and 350 parts by weight of a silicone rubber having an average particle diameter of 3 μm as a filler in the solution. 520 parts by weight of flaky natural graphite having an average particle diameter of 4 μm as a solid lubricating fine powder, and 520 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. as a silicone oil were mixed and dispersed to obtain a coating composition.
상기 코팅 조성물에 경화제로서 폴리이소시아네이트 75중량부를 더하고, 스프레이로 10㎛의 막두께를 갖도록 천연고무제의 와이퍼 블레이드에 코팅하고, 80℃에서 30분간 경화시켰다. 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.75 parts by weight of polyisocyanate was added to the coating composition as a curing agent, and coated on a wiper blade made of natural rubber to have a film thickness of 10 μm by spraying, and then cured at 80 ° C. for 30 minutes. Tests described later were performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 2Example 2
충진제로서 평균입경 3㎛의 실리콘 고무 60중량부를 사용하고, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 150중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 400중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As a filler, 60 parts by weight of silicone rubber having an average particle diameter of 3 µm is used, and 150 parts by weight of flaky natural graphite having an average particle diameter of 4 µm is used as a fine lubricating powder and 400 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C as a silicone oil. Except for the use, it was carried out in the same manner as in Example 1, and the following test was performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 3Example 3
충진제로서 평균입경 3㎛의 실리콘 고무 100중량부를 사용하고, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 200중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 450중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.100 parts by weight of silicone rubber having an average particle diameter of 3 μm was used as a filler, 200 parts by weight of flaky natural graphite having an average particle size of 4 μm as a solid lubricating fine powder, and 450 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. as a silicone oil. Except for the use, the same operation as in Example 1 was carried out, and the following test was performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 4Example 4
고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 150중량부, MoSO2290중량부 및 실리콘 수지 70중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 480중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.150 parts by weight of flaky natural graphite, 290 parts by weight of MoSO 2 and 70 parts by weight of silicone resin are used as fine lubricating fine powder, except that 480 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. is used as the silicone oil. And was carried out in the same manner as in Example 1, was carried out the test described later for the manufactured vehicle wiper blade, and the evaluation results are shown in Table 1 and Table 2.
실시예 5Example 5
고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 90중량부, MoSO2340중량부 및 실리콘 수지 100중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 480중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.90 parts by weight of flaky natural graphite, 340 parts by weight of MoSO 2 and 100 parts by weight of a silicone resin are used as fine lubricating fine powder, except that 480 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. is used as a silicone oil. And was carried out in the same manner as in Example 1, was carried out the test described later for the manufactured vehicle wiper blade, and the evaluation results are shown in Table 1 and Table 2.
실시예 6Example 6
고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 320중량부 및 PTFE 210중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 480중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As a solid lubricating fine powder, 320 parts by weight of flaky natural graphite and 210 parts by weight of PTFE having an average particle diameter of 4 μm were used, and 480 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. was used as the silicon oil. In the same manner, the following test was performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 7Example 7
고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 520중량부 및 PTFE 350중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 520중량부를 사용한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.Example 1 except that 520 parts by weight of flaky natural graphite and 350 parts by weight PTFE and 350 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. as a solid lubrication fine powder with an average particle diameter of 4 μm. In the same manner, the following test was performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 8Example 8
메틸에틸케톤 600중량부 및 부틸아세테이트 350중량부를 혼합하여 이루어진 용매에 결합제인 수산기 함유 불소 수지 100중량부를 용해시키고, 상기 용액에 충진제로서 평균입경 3㎛의 실리콘 고무 45중량부를, 고체윤활 미분말로서 평균입경 3㎛의 PTFE 20중량부 및 평균입경 4㎛의 인편상 천연흑연 60중량부를, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 280중량부 및 점도 300cSt를 갖는 폴리디메틸 실록산 변성물 120중량부를 혼합하고, 분산시켜 코팅 조성물을 얻었다.100 parts by weight of a hydroxyl group-containing fluororesin as a binder was dissolved in a solvent obtained by mixing 600 parts by weight of methyl ethyl ketone and 350 parts by weight of butyl acetate, and in the solution, 45 parts by weight of silicone rubber having an average particle diameter of 3 μm was filled as a solid lubrication fine powder. 20 parts by weight of PTFE having a particle diameter of 3 μm and 60 parts by weight of flaky natural graphite having an average particle diameter of 4 μm, 280 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. as a silicone oil and 120 parts of polydimethyl siloxane modified substance having a viscosity of 300 cSt. The parts were mixed and dispersed to obtain a coating composition.
상기 코팅 조성물에 경화제로서 폴리이소시아네이트 42중량부를 더하고, 스프레이로 10㎛의 막두께를 갖도록 천연고무제의 와이퍼 블레이드에 코팅하고, 80℃에서 30분간 경화시켰다. 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.42 parts by weight of polyisocyanate was added to the coating composition as a curing agent, and coated on a wiper blade made of natural rubber so as to have a film thickness of 10 μm with a spray, and cured at 80 ° C. for 30 minutes. Tests described later were performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 9Example 9
실리콘오일로서, 20℃에서 50cSt의 점도를 갖는 디메틸 실리콘오일 140중량부 및 20cSt의 점도를 갖는 폴리디메틸 실록산 변성물 60중량부를 사용한 것을 제외하고는 상기 실시예 8과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As silicone oil, the same procedure as in Example 8 was carried out except that 140 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt and 60 parts by weight of polydimethyl siloxane modified substance having a viscosity of 20 cSt were used as the silicone oil. The test mentioned later about the wiper blade was done, and the evaluation result is shown in following Table 1 and Table 2.
실시예 10Example 10
실리콘오일로서, 20℃에서 50cSt의 점도를 갖는 디메틸 실리콘오일 200중량부 및 60cSt의 점도를 갖는 아미노변성 실리콘오일 200중량부를 사용한 것을 제외하고는 상기 실시예 8과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As a silicone oil, the same method as in Example 8 was carried out except that 200 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt and 200 parts by weight of amino-modified silicone oil having a viscosity of 60 cSt were used as the silicone oil. The test mentioned later about the blade was done and the evaluation result is shown to following Table 1 and Table 2.
실시예 11Example 11
실리콘오일로서, 20℃에서 50cSt의 점도를 갖는 디메틸 실리콘오일 100중량부 및 60cSt의 점도를 갖는 아미노변성 실리콘오일 100중량부를 사용한 것을 제외하고는 상기 실시예 8과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As a silicone oil, the same method as in Example 8 was carried out except that 100 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt and 100 parts by weight of amino-modified silicone oil having a viscosity of 60 cSt were used. The test mentioned later about the blade was done and the evaluation result is shown to following Table 1 and Table 2.
실시예 12Example 12
실리콘오일로서, 20℃에서 50cSt의 점도를 갖는 디메틸 실리콘오일 360중량부 및 10,000cSt의 점도를 갖는 디메틸 실리콘오일 40중량부를 사용한 것을 제외하고는 상기 실시예 8과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As the silicone oil, the same method as in Example 8 was carried out except that 360 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt and 40 parts by weight of dimethyl silicone oil having a viscosity of 10,000 cSt were used as the silicone oil. The test mentioned later about the blade was done and the evaluation result is shown to following Table 1 and Table 2.
실시예 13Example 13
실리콘오일로서, 20℃에서 50cSt의 점도를 갖는 디메틸 실리콘오일 180중량부 및 10,000cSt의 점도를 갖는 디메틸 실리콘오일 20중량부를 사용한 것을 제외하고는 상기 실시예 8과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.As the silicone oil, the vehicle wiper was manufactured in the same manner as in Example 8, except that 180 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt and 20 parts by weight of dimethyl silicone oil having a viscosity of 10,000 cSt were used as the silicone oil. The test mentioned later about the blade was done and the evaluation result is shown to following Table 1 and Table 2.
실시예 14Example 14
톨루엔 2000중량부 및 자일렌 700중량부를 혼합하여 이루어진 용매에 결합제인 디-메틸 치환된 히드록시 말단을 갖는 실리콘 및 실록산 중합체 100중량부를 용해시키고, 상기 용액에 충진제로서 평균입경 3㎛의 실리콘 고무 80중량부를, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 420중량부를, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 600중량부 및 점도 60cSt를 갖는 아미노변성 실리콘오일 600중량부를 혼합하고, 분산시켜 코팅 조성물을 얻었다.Dissolve 100 parts by weight of silicone and siloxane polymer having di-methyl substituted hydroxy terminus as a binder in a solvent obtained by mixing 2000 parts by weight of toluene and 700 parts by weight of xylene, and in the solution, a silicone rubber having an average particle diameter of 3 μm 80 By weight, 420 parts by weight of flaky natural graphite having an average particle diameter of 4 μm as a solid lubricating fine powder, 600 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. and 600 parts by weight of an amino modified silicone oil having a viscosity of 60 cSt It disperse | distributed and the coating composition was obtained.
상기 코팅 조성물에 경화제로서 이아세트산 디부틸주석 10중량부를 더하고, 스프레이로 10㎛의 막두께를 갖도록 천연고무제의 와이퍼 블레이드에 코팅하고, 80℃에서 30분간 경화시켰다. 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.10 parts by weight of dibutyltin diacetate was added to the coating composition as a curing agent, and coated on a wiper blade made of natural rubber so as to have a film thickness of 10 μm with a spray, and cured at 80 ° C. for 30 minutes. Tests described later were performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
실시예 15Example 15
충진제로서 평균입경 3㎛의 실리콘 고무 30중량부를 사용하고, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 50중량부 및 MoSO2130중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 290중량부 및 점도 60cSt를 갖는 아미노변성 실리콘오일 290중량부를 사용한 것을 제외하고는 상기 실시예 14와 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.30 parts by weight of silicone rubber having an average particle diameter of 3 μm was used as a filler, 50 parts by weight of flaky natural graphite having an average particle diameter of 4 μm and 130 parts by weight of MoSO 2 were used as fine lubricating fine powder, and a silicone oil having a viscosity of 50 cSt at 20 ° C. Except for using 290 parts by weight of dimethyl silicone oil and 290 parts by weight of amino-modified silicone oil having a viscosity of 60 cSt was carried out in the same manner as in Example 14, the following test was performed on the manufactured vehicle wiper blades, the evaluation result Are shown in Tables 1 and 2 below.
실시예 16Example 16
충진제로서 평균입경 3㎛의 실리콘 고무 50중량부를 사용하고, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 110중량부 및 MoSO2270중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 460중량부 및 점도 60cSt를 갖는 아미노변성 실리콘오일 460중량부를 사용한 것을 제외하고는 상기 실시예 14와 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.50 parts by weight of silicone rubber having an average particle diameter of 3 μm was used as a filler, 110 parts by weight of flaky natural graphite having an average particle size of 4 μm and 270 parts by weight of MoSO 2 were used as fine lubricating fine powder, and a silicone oil having a viscosity of 50 cSt at 20 ° C. Except for using 460 parts by weight of dimethyl silicone oil and 460 parts by weight of amino-modified silicone oil having a viscosity of 60 cSt, the same procedure as in Example 14 was carried out. Are shown in Tables 1 and 2 below.
실시예 17Example 17
충진제로서 평균입경 3㎛의 실리콘 고무 90중량부를 사용하고, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 180중량부 및 MoSO2460중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 700중량부 및 점도 60cSt를 갖는 아미노변성 실리콘오일 700중량부를 사용한 것을 제외하고는 상기 실시예 14와 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.90 parts by weight of silicone rubber having an average particle diameter of 3 μm was used as a filler, 180 parts by weight of flaky natural graphite having an average particle size of 4 μm and 460 parts by weight of MoSO 2 were used as fine lubricating fine powder, and a silicone oil having a viscosity of 50 cSt at 20 ° C. Except for using 700 parts by weight of dimethyl silicone oil and 700 parts by weight of amino-modified silicone oil having a viscosity of 60 cSt was carried out in the same manner as in Example 14, was carried out the test described below for the manufactured vehicle wiper blades, the evaluation result Are shown in Tables 1 and 2 below.
비교예 1Comparative Example 1
메틸에틸케톤 3700중량부, 톨루엔 2600중량부, 및 부틸아세테이트 1300중량부를 혼합하여 이루어진 용매에 결합제인 폴리에스테르 폴리올 수지 100중량부를 용해시키고, 상기 용액에 충진제로서 평균입경 3㎛의 실리콘 고무 350중량부를, 고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 530중량부를, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 45중량부를 혼합하고, 분산시켜 코팅 조성물을 얻었다.100 parts by weight of a polyester polyol resin as a binder was dissolved in a solvent obtained by mixing 3700 parts by weight of methyl ethyl ketone, 2600 parts by weight of toluene, and 1300 parts by weight of butyl acetate, and 350 parts by weight of a silicone rubber having an average particle diameter of 3 μm as a filler in the solution. 530 parts by weight of flaky natural graphite having an average particle diameter of 4 μm as a solid lubricating fine powder, and 45 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. as a silicone oil were mixed and dispersed to obtain a coating composition.
상기 코팅 조성물에 경화제로서 폴리이소시아네이트 75중량부를 더하고, 스프레이로 10㎛의 막두께를 갖도록 천연고무제의 와이퍼 블레이드에 코팅하고, 80℃에서 30분간 경화시켰다. 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.75 parts by weight of polyisocyanate was added to the coating composition as a curing agent, and coated on a wiper blade made of natural rubber to have a film thickness of 10 μm by spraying, and then cured at 80 ° C. for 30 minutes. Tests described later were performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
비교예 2Comparative Example 2
실리콘오일을 사용하지 않은 것을 제외하고는 상기 비교예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.Except not using the silicone oil was carried out in the same manner as in Comparative Example 1, and the following test was performed on the manufactured vehicle wiper blades, the evaluation results are shown in Table 1 and Table 2.
비교예 3Comparative Example 3
실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 1050중량부 및 20℃에서 점도 60cSt를 갖는 아미노변성 실리콘오일 1050중량부를 사용한 것을제외하고는 상기 비교예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.A vehicle wiper prepared in the same manner as in Comparative Example 1 except that 1050 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. and 1050 parts by weight of an amino-modified silicone oil having a viscosity of 60 cSt at 20 ° C. were used. The test mentioned later about the blade was done and the evaluation result is shown to following Table 1 and Table 2.
비교예 4Comparative Example 4
고체윤활 미분말로서 평균입경 4㎛의 인편상 천연흑연 40중량부 및 MoSO235중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 480중량부를 사용한 것을 제외하고는 상기 비교예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.Comparative Example 1 except that 40 parts by weight of flaky natural graphite and 35 parts by weight of MoSO 2 were used as fine lubricating fine powder, and 480 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. was used as the silicon oil. The same test was carried out, and the following test was performed on the manufactured vehicle wiper blades, and the evaluation results are shown in Tables 1 and 2 below.
비교예 5Comparative Example 5
고체윤활 미분말로서 평균입경 4㎛의 MoSO21250중량부를 사용하며, 실리콘오일로서 20℃에서 점도 50cSt를 갖는 디메틸 실리콘오일 520중량부를 사용한 것을 제외하고는 상기 비교예 1과 동일하게 실시하였고, 제조된 차량용 와이퍼 블레이드에 대해 후술하는 시험을 실시하고, 그 평가결과를 하기 표 1 및 표 2에 나타내었다.1250 parts by weight of MoSO 2 having an average particle diameter of 4 μm was used as the fine powder of solid lubrication, and the same operation as in Comparative Example 1 was performed except that 520 parts by weight of dimethyl silicone oil having a viscosity of 50 cSt at 20 ° C. was used. The below-mentioned test was performed about the vehicle wiper blade, and the evaluation result is shown to following Table 1 and Table 2.
※ 와이퍼의 접동성(摺動性) 및 초기 발수성 시험 ※Wiper Sliding and Initial Water Repellency Test
- JIS D5710에 규정된 와이퍼 블레이드 성능평가에 이용하는 시험장치에 준하는 시험장치를 사용하고, 무수상태에서 작동시키고, 15분후의 발수도 및 작동 전류값을 확인한다. 작동 전류값을 코팅하지 않은 천연고무제의 와이퍼 블레이드의수치를 100으로 할 때의 지수로 평가한다. 이 지수가 적을수록 와이퍼의 접동성이 우수하다고 말할 수 있다.-Use a test apparatus that conforms to the test apparatus used for evaluating the wiper blade performance specified in JIS D5710, operate in anhydrous state, and check the water repellency and operating current values after 15 minutes. The value of the wiper blade of a natural rubber without coating the operating current value is evaluated as an index of 100. The smaller this index is, the better the wiper's sliding performance can be said.
- 발수도의 평가기준-Evaluation criteria for water repellency
○ : 접동부 전면이 발수한다 / 성능 양호○: The front surface of the sliding part is water repellent / Good performance
△ : 접동부의 50%이상이 발수한다 / 성능 약간 떨어짐△: more than 50% of the sliding part is water repellent / performance slightly deteriorated
× : 접동부의 50%이하가 발수한다 / 성능이 떨어짐.X: Less than 50% of the sliding part is water repellent. / Poor performance.
- 발수 내구성 시험-Water repellent durability test
JIS D5710에 규정되는 와이퍼 블레이드 성능평가에 이용하는 시험장치에 준한 시험장치를 사용하고, 무수상태에서 15분간 작동시킨 후, 차량의 앞유리에 균일하게 500cc/min의 물을 분무한 상태에서 와이퍼를 30만회 작동시킨다. 와이퍼 블레이드의 작동속도는 40사이클/min으로 하였다. 5만회마다 평가를 실시하고, 단 떨림이 크고 원활하게 작동하지 않는 경우에는 시험을 중지하였다.After using the test apparatus in accordance with the test apparatus used for evaluating the wiper blade performance specified in JIS D5710, and operating for 15 minutes in anhydrous state, the wiper is sprayed with 500cc / min of water uniformly sprayed onto the windshield of the vehicle. Make up for it. The operating speed of the wiper blade was 40 cycles / min. The evaluation was performed every 50,000 times, but the test was stopped when the tremor was large and did not work smoothly.
- 발수 내구성의 평가기준-Evaluation criteria for water repellent durability
○ : 접동부 70% 이상이 발수한다 / 성능 양호○: 70% or more of the sliding part is water-repellent / good performance
△ : 접동부의 50% 이상이 발수한다 / 성능 약간 떨어짐△: more than 50% of the sliding part is water repellent / performance slightly deteriorated
× : 접동부의 50% 이하가 발수한다 / 성능이 떨어짐.X: 50% or less of the sliding part is water repellent. / Poor performance.
상기 실시예 및 비교예를 통 해 알 수 있는 바와 같이, 본 발명에 따른 차량용 와이퍼 블레이드 코팅 조성물을 와이퍼 블레이드의 적어도 립 부에 표층부로서 막두께 5∼30㎛로 형성시킴으로써, 와이퍼 블레이드를 작동시키는 것만으로 자동적으로 차량의 앞유리에 내구성에 우수한 발수 피막을 형성시킬 수 있다. 또한, 차량 앞유리가 양호하게 발수함으로써, 빗물이 비산하기 쉬워지며, 양호한 시계를 얻을 수 있고, 와이퍼 블레이드의 이음(異音), 떨림의 발생을 방지하며, 원활하게 작동할 수 있는 와이퍼 블레이드를 제공할 수 있다.As can be seen through the above examples and comparative examples, by only forming the vehicle wiper blade coating composition according to the present invention on at least the lip portion of the wiper blade as a layer thickness of 5 to 30㎛ as the surface layer portion, only operating the wiper blade Therefore, it is possible to automatically form a water-repellent coating having excellent durability on the windshield of the vehicle. In addition, when the windshield of the vehicle is well water-repelled, rain water is likely to scatter, and a good watch can be obtained, and a wiper blade which can smoothly operate while preventing the wiper blade from squeaking and shaking. Can provide.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100837370B1 (en) * | 2006-10-13 | 2008-06-12 | 나오테크(주) | Windshield wiper blade coating composition |
| EP2067833A1 (en) | 2007-08-17 | 2009-06-10 | ADM21 Co., Ltd. | Composition for coating wiper blade rubbers, coating method using the same, and wiper blade rubbers made therefrom |
| KR100988533B1 (en) * | 2007-12-17 | 2010-10-20 | 에이디엠이십일 주식회사 | Composition for coating a rubber of wiper blade, its coating method and a rubber for wiper blade prepared from the method |
| KR101417279B1 (en) * | 2012-05-25 | 2014-07-14 | 케이씨더블류 주식회사 | Compositions of Silicone Rubber for Wiper Blade |
| KR101591392B1 (en) * | 2014-09-26 | 2016-02-03 | (주)피알테크 | Surface Modified Wiper Blade Rubber and Method for Fabricating Thereof |
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| KR20200143755A (en) * | 2019-06-14 | 2020-12-28 | 주식회사 캐프 | Coating composition for wiper blade and method for coating the wiper blade using the same |
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| KR101006778B1 (en) | 2009-03-10 | 2011-01-10 | 나오테크(주) | Composition for coating wiper blade and wiper blade |
| KR100989353B1 (en) * | 2010-05-18 | 2010-10-25 | 주식회사 캐프 | Water repellent coating composition for wiper having improved stability and water-repellency |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100837370B1 (en) * | 2006-10-13 | 2008-06-12 | 나오테크(주) | Windshield wiper blade coating composition |
| EP2067833A1 (en) | 2007-08-17 | 2009-06-10 | ADM21 Co., Ltd. | Composition for coating wiper blade rubbers, coating method using the same, and wiper blade rubbers made therefrom |
| US8304068B2 (en) | 2007-08-17 | 2012-11-06 | Adm21 Co., Ltd. | Composition for coating wiper blade rubbers, coating method using the same, and wiper blade rubbers made therefrom |
| KR100988533B1 (en) * | 2007-12-17 | 2010-10-20 | 에이디엠이십일 주식회사 | Composition for coating a rubber of wiper blade, its coating method and a rubber for wiper blade prepared from the method |
| KR101417279B1 (en) * | 2012-05-25 | 2014-07-14 | 케이씨더블류 주식회사 | Compositions of Silicone Rubber for Wiper Blade |
| US9540552B2 (en) | 2012-10-29 | 2017-01-10 | Illinois Tool Works, Inc. | Applicator with hydrophobic coating transferable to contacting surface |
| US9637670B2 (en) | 2012-10-29 | 2017-05-02 | Illinois Tool Works Inc. | Applicator with hydrophobic coating transferable to contacting surface |
| KR101591392B1 (en) * | 2014-09-26 | 2016-02-03 | (주)피알테크 | Surface Modified Wiper Blade Rubber and Method for Fabricating Thereof |
| KR20200143755A (en) * | 2019-06-14 | 2020-12-28 | 주식회사 캐프 | Coating composition for wiper blade and method for coating the wiper blade using the same |
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