KR20140011627A - Low friction resin composition and coating material for automobile engine including the same - Google Patents

Low friction resin composition and coating material for automobile engine including the same Download PDF

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KR20140011627A
KR20140011627A KR1020120078171A KR20120078171A KR20140011627A KR 20140011627 A KR20140011627 A KR 20140011627A KR 1020120078171 A KR1020120078171 A KR 1020120078171A KR 20120078171 A KR20120078171 A KR 20120078171A KR 20140011627 A KR20140011627 A KR 20140011627A
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resin composition
low friction
graphite
friction resin
carbon nanotubes
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KR1020120078171A
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Korean (ko)
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양준규
류관호
이정근
박강욱
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동양피스톤 주식회사
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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
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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    • C08K3/041—Carbon nanotubes
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
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    • C08K3/04—Carbon
    • C08K3/042—Graphene or derivatives, e.g. graphene oxides
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • 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
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
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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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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides
    • 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
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  • Lubricants (AREA)
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Abstract

A low frictional resin composition according to one embodiment of the present invention may include a solvent, a binder, and a solid lubricant including carbon nanotubes (CNT). The low frictional resin composition further includes a wear resistant resin composition. The wear resistant resin includes polytetrafluoroethylene (PTFE). [Reference numerals] (AA,CC) Friction coefficient; (BB) Comparative example; (DD) CNT content(wt%)

Description

저마찰 수지 조성물 및 이를 포함하는 차량용 엔진 코팅제{LOW FRICTION RESIN COMPOSITION AND COATING MATERIAL FOR AUTOMOBILE ENGINE INCLUDING THE SAME}LOW FRICTION RESIN COMPOSITION AND COATING MATERIAL FOR AUTOMOBILE ENGINE INCLUDING THE SAME}

본 발명은 저마찰 수지 조성물 및 이를 포함하는 차량용 엔진 코팅제에 관한 것이다.
The present invention relates to a low friction resin composition and a vehicle engine coating agent comprising the same.

최근 차량용 엔진은 연비 감소를 위하여 고출력화, 경량화 및 저마찰화가 이루이지고 있다. Recently, automotive engines have achieved high output, light weight, and low friction in order to reduce fuel consumption.

일반적으로, 차량용 엔진 내 피스톤은 실린더 내에서 빠른 속도로 왕복운동을 한다. 피스톤이 실린더 내에서 왕복운동을 하는 동안 실린더 내벽과 피스톤의 스커트부는 접촉하게 되고 이는 동력손실과 함께 소음 및 진동의 원인이 된다. Generally, the piston in a vehicle engine reciprocates at a high speed in a cylinder. While the piston reciprocates in the cylinder, the inner wall of the cylinder and the skirt of the piston come into contact, which causes noise and vibration along with power loss.

따라서, 상기 피스톤의 스커트부를 하기의 특허문헌들과 같이 수지액으로 코팅을 하여 상기 실린더 내벽과 상기 피스톤의 스커트부의 마찰을 저감시키고 있다.
Therefore, the skirt of the piston is coated with a resin liquid as in the following patent documents to reduce friction between the cylinder inner wall and the skirt of the piston.

한국공개공보 10-2007-0081566Korean Publication 10-2007-0081566 한국공개공보 10-2008-0093625Korean Publication 10-2008-0093625 한국공개공보 10-2008-0093625Korean Publication 10-2008-0093625 상기 특허문헌들은 수지 코팅액으로, 내열마모수지에 고체 윤활제로서 나노다이아몬드, TiO2, 알루미나 등이 사용된 것이 개시되고 있다.The patent documents disclose that, as a resin coating liquid, nanodiamond, TiO 2, alumina, or the like is used as a solid lubricant in a heat-resistant wear resin. 그러나, 이와 같은 수지 코팅액은 고체 윤활제의 제조가 어렵고, 고체 윤활제를 분산시키기 위한 공법이 필요하므로, 생산비용이 높은 문제점이 있다.However, such a resin coating liquid is difficult to manufacture a solid lubricant, and since a method for dispersing the solid lubricant is required, there is a problem in that the production cost is high. 따라서, 이들 특허들에 비해 마찰계수 및 내마모성이 향상되고, 연비가 개선되는 수지 코팅제의 개발이 요구되고 있다.Accordingly, there is a demand for development of a resin coating agent having improved friction coefficient and wear resistance and improved fuel economy compared to these patents.

본 발명의 목적은 내연기관 내에서 마찰계수를 감소시키고 연비를 향상시키기 위한 저마찰 수지 조성물을 제공하는 것이다. It is an object of the present invention to provide a low friction resin composition for reducing the coefficient of friction and improving fuel efficiency in an internal combustion engine.

또한, 본 발명의 다른 목적은 상기 저마찰 수지 조성물을 포함하는 차량용 엔진 코팅제를 제공하는 것이다.
In addition, another object of the present invention is to provide a vehicle engine coating agent comprising the low friction resin composition.

본 발명의 일 실시예에 따른 저마찰 수지 조성물은 용매; 바인더; 및 탄소나노튜브(CNT)를 포함하는 고체 윤활제;를 포함할 수 있다. Low friction resin composition according to an embodiment of the present invention is a solvent; bookbinder; And a solid lubricant including carbon nanotubes (CNT).

상기 용매는 40 내지 60 wt%, 상기 바인더는 10 내지 40 wt%, 및 상기 탄소나노튜브(CNT)는 0.5 내지 5.0 wt%가 포함될 수 있다. 40 to 60 wt% of the solvent, 10 to 40 wt% of the binder, and 0.5 to 5.0 wt% of the carbon nanotube (CNT).

상기 저마찰 수지 조성물은 내열마모수지를 더 포함할 수 있다. The low friction resin composition may further include a heat resistant wear resin.

상기 내열마모수지는 폴리테트라플루오로에틸렌(PTFE)을 포함할 수 있다. The heat resistant resin may include polytetrafluoroethylene (PTFE).

상기 내열마모수지는 5 내지 20 wt%가 포함될 수 있다. The heat resistant wear resin may include 5 to 20 wt%.

상기 내열마모수지는 5 내지 15 wt%가 포함될 수 있다. The heat resistant wear resin may include 5 to 15 wt%.

상기 고체 윤활제는 그라파이트(Graphite)를 더 포함하며, 상기 그라파이트는 10 내지 20 wt%가 포함될 수 있다. The solid lubricant further includes graphite, and the graphite may contain 10 to 20 wt%.

상기 고체 윤활제는 그라파이트 및 MoS2를 더 포함하며, 상기 그라파이트는 3 내지 8 wt%가 포함되고, 상기 MoS2는 8 내지 16 wt%가 포함될 수 있다. The solid lubricant further includes graphite and MoS 2, the graphite may include 3 to 8 wt%, and the MoS 2 may include 8 to 16 wt%.

상기 고체 윤활제는 그라파이트 및 MoS2를 더 포함하며, 상기 그라파이트는 2 내지 5 wt%가 포함되고, 상기 MoS2는 5 내지 10 wt%가 포함될 수 있다. The solid lubricant further includes graphite and MoS 2, the graphite may include 2 to 5 wt%, and the MoS 2 may include 5 to 10 wt%.

상기 바인더는 폴리아미드이미드(PAI)를 포함할 수 있다. The binder may comprise polyamideimide (PAI).

상기 용매는 N-메틸피롤리돈(NMP) 또는 γ-부티로락톤(GBL)을 포함할 수 있다.
The solvent may comprise N-methylpyrrolidone (NMP) or γ-butyrolactone (GBL).

다른 측면에서, 본 발명의 다른 일 실시예에 따른 저마찰 수지 조성물은 γ-부티로락톤 40 내지 60 wt%; 폴리아미드이미드 10 내지 40wt%; 그라파이트 2 내지 10 wt%; MoS2 2 내지 10 wt%; 탄소나노튜브(CNT) 0.5 내지 1.5 wt%; 및 폴리테트라플루오로에틸렌(PTFE) 5 내지 15 wt%;를 포함할 수 있다.
In another aspect, the low friction resin composition according to another embodiment of the present invention is γ-butyrolactone 40 to 60 wt%; 10 to 40 wt% polyamideimide; Graphite 2-10 wt%; MoS 2 2-10 wt%; Carbon nanotubes (CNT) 0.5 to 1.5 wt%; And 5 to 15 wt% of polytetrafluoroethylene (PTFE).

또 다른 측면에서, 본 발명의 일 실시예에 따른 차량용 엔진 코팅제는 상기 저마찰 수지 조성물을 포함할 수 있다.
In another aspect, the vehicle engine coating agent according to an embodiment of the present invention may include the low friction resin composition.

본 발명의 일 실시 예에 따르면, 종래의 발명들에 비해 마찰계수와 내마모성이 향상될 수 있다. According to one embodiment of the present invention, the coefficient of friction and wear resistance can be improved compared to the conventional inventions.

또한, 마찰계수와 내마모성이 향상되어 연비가 개선되고, 용매를 γ-부티로락톤(GBL)를 이용하는 조성물은 환경에 유해하지 않다.
In addition, the coefficient of friction and wear resistance are improved, fuel economy is improved, and the composition using γ-butyrolactone (GBL) as a solvent is not harmful to the environment.

도 1은 본 발명의 일 실시예에 따른 탄소나노튜브의 함량에 따라 마찰 계수의 변화를 나타내는 그래프.
도 2는 본 발명의 일 실시예에 따른 탄소나노튜브의 함량에 따라 마모율의 변화를 나타내는 그래프.
도 3은 본 발명의 일 실시예에 따른 조성비에 따른 마찰 계수의 변화를 나타내는 그래프.
도 4는 본 발명의 일 실시예에 따른 조성비에 따른 마모율의 변화를 나타내는 그래프.1 is a graph showing a change in the friction coefficient according to the content of carbon nanotubes according to an embodiment of the present invention.
Figure 2 is a graph showing a change in the wear rate according to the content of carbon nanotubes according to an embodiment of the present invention.
3 is a graph showing a change in the friction coefficient according to the composition ratio according to an embodiment of the present invention.
4 is a graph showing a change in wear rate according to the composition ratio according to an embodiment of the present invention.

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

또한, 본 발명의 실시 예는 당해 기술분야에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위해서 제공되는 것이다.In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

한편, 명세서 전체에서 어떤 구성요소를 '포함'한다는 것은 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있다는 것을 의미한다.
On the other hand, "including" any component throughout the specification means that it may further include other components, except to exclude other components unless otherwise stated.

본 발명의 일 실시예에 따른 저마찰 수지 조성물은 용매; 바인더; 및 탄소나노튜브(CNT)를 포함하는 고체 윤활제;를 포함할 수 있다. Low friction resin composition according to an embodiment of the present invention is a solvent; bookbinder; And a solid lubricant including carbon nanotubes (CNT).

상기 용매는 40 내지 60 wt%, 상기 바인더는 10 내지 40 wt%, 및 상기 탄소나노튜브(CNT)는 0.5 내지 5.0 wt%가 포함될 수 있다. 40 to 60 wt% of the solvent, 10 to 40 wt% of the binder, and 0.5 to 5.0 wt% of the carbon nanotube (CNT).

상기 저마찰 수지 조성물은 자동차용 피스톤의 스커트부의 코팅제에 포함될 수 있다. 상기 자동차용 피스톤의 스커트부는 실린더의 내면과의 마찰을 감소시키기 위해 상기 저마찰 수지 조성물을 포함하는 코팅제로 약 10㎛ 정도의 두께로 코팅될 수 있다. The low friction resin composition may be included in the coating of the skirt portion of an automobile piston. The skirt of the automobile piston may be coated with a thickness of about 10 μm with a coating agent including the low friction resin composition to reduce friction with the inner surface of the cylinder.

상기 탄소나노튜브는 저마찰, 고경도, 고탄성계수, 고분산성을 갖는 재질로, 상기 피스톤의 스커트부에 코팅되면, 마찰계수가 작아지고, 마모율이 감소한다. The carbon nanotubes are made of a material having low friction, high hardness, high modulus of elasticity, and high dispersibility. When the carbon nanotube is coated on the skirt of the piston, the friction coefficient is reduced, and the wear rate is reduced.

도 1은 본 발명의 일 실시예에 따른 탄소나노튜브의 함량에 따라 마찰 계수의 변화를 나타내는 그래프이며, 도 2는 본 발명의 일 실시예에 따른 탄소나노튜브의 함량에 따라 마모율의 변화를 나타내는 그래프이다. 1 is a graph showing a change in friction coefficient according to the content of carbon nanotubes according to an embodiment of the present invention, Figure 2 shows a change in wear rate according to the content of carbon nanotubes according to an embodiment of the present invention It is a graph.

일 실시예에 따라 용매는 40 내지 60 wt%, 바인더는 10 내지 40 wt%, 및 탄소나노튜브는 0.5 내지 5.0 wt%가 포함되고, 내열마모수지로 폴리테트라플루오로에틸렌 (PTFE) 10 내지 20 wt%가 포함된다.According to an embodiment, the solvent includes 40 to 60 wt%, the binder is 10 to 40 wt%, and the carbon nanotubes include 0.5 to 5.0 wt%, and polytetrafluoroethylene (PTFE) 10 to 20 is a heat resistant wear resin. wt% is included.

상기 용매로는 N-메틸피롤리돈(NMP) 또는 γ-부티로락톤(GBL)가 사용될 수 있고, 상기 바인더로는 폴리아미드이미드(PAI)가 사용될 수 있다.
N-methylpyrrolidone (NMP) or γ-butyrolactone (GBL) may be used as the solvent, and polyamideimide (PAI) may be used as the binder.

도 1 및 도 2를 참조하면, 종래 기술에 따른 수지 조성물과 같이 탄소나노튜브가 포함되지 않은 경우는 마찰계수가 0.15이고, 마모율이 8 X 10-6 mm3/Nm 로 측정되었다. 1 and 2, when the carbon nanotubes are not included as in the resin composition according to the prior art, the friction coefficient was 0.15 and the wear rate was measured as 8 X 10 -6 mm 3 / Nm.

반면, 본 발명의 일 실시예에 따라 탄소나노튜브가 0.5 내지 5.0 wt% 포함된 경우에는 마찰계수가 0.04 내지 0.08이고, 마모율이 1.5 내지 5 X 10-6 mm3/Nm 로 측정되었다. On the other hand, when the carbon nanotubes contain 0.5 to 5.0 wt% according to one embodiment of the present invention, the friction coefficient was 0.04 to 0.08 and the wear rate was measured to 1.5 to 5 X 10 −6 mm 3 / Nm.

즉, 도 1 및 도 2를 참조하면, 본 발명의 일 실시예에 따라 탄소나노튜브의 함량이 0.5 내지 5.0 wt%일 때, 마찰 및 마모 특성이 종래 기술에 비하여 개선됨을 알 수 있다. 구체적으로 탄소나노튜브를 포함하지 않는 종래기술과 대비하여 마찰계수는 약 30%, 마모율은 약 80% 감소함을 알 수 있다. That is, referring to Figures 1 and 2, it can be seen that when the content of the carbon nanotubes of 0.5 to 5.0 wt% according to an embodiment of the present invention, the friction and wear characteristics are improved compared to the prior art. Specifically, it can be seen that the friction coefficient is reduced by about 30% and the wear rate by about 80% compared with the prior art that does not include carbon nanotubes.

또한, 탄소나노튜브의 함량이 0.5 내지 2.0 wt%일 때, 마찰 및 마모 특성이 우수하며, 특히 0.5 내지 1.0 wt%일 때 마찰 및 마모 특성이 가장 우수함을 알 수 있다.
In addition, when the content of the carbon nanotubes of 0.5 to 2.0 wt%, the friction and wear properties are excellent, especially when the 0.5 to 1.0 wt% it can be seen that the friction and wear properties are the most excellent.

이하에서는 저마찰 수지 조성물을 함량과 조성에 대한 실시예를 더욱 상세히 살펴보기로 한다. Hereinafter, the low friction resin composition will be described in more detail with respect to Examples.

아래의 표 1은 저마찰 수지 조성물을 함량과 조성에 따른 실시예들을 나타낸 것이다.
Table 1 below shows examples of the low friction resin composition according to the content and composition.

시료sample 바인더bookbinder 용매menstruum 고체 윤활제Solid lubricant 내열마모수지Heat Resistant Resin 기타Etc PAIPAI NMP 또는 GBLNMP or GBL 그라파이트Graphite MoS2MoS2 CNTCNT PTFEPTFE #01# 01 10-4010-40 40-6040-60 10-2010-20 -- 0.5-1.50.5-1.5 --
미량
a very small amount #02# 02 3-83-8 8-168-16 -- #03# 03 2-52-5 5-105-10 5-155-15 #04# 04 -- -- 10-2010-20

표 1에 도시된 본 발명인 저마찰 수지 조성물의 실험예들은 용매; 바인더; 및 탄소나노튜브를 포함하는 고체 윤활제를 포함할 수 있다. Experimental examples of the low friction resin composition of the present invention shown in Table 1 is a solvent; bookbinder; And it may include a solid lubricant comprising carbon nanotubes.

상기 용매는 40 내지 60 wt%, 상기 바인더는 10 내지 40 wt%, 및 상기 탄소나노튜브는 0.5 내지 1.5 wt%;가 포함될 수 있다.
40 to 60 wt% of the solvent, 10 to 40 wt% of the binder, and 0.5 to 1.5 wt% of the carbon nanotubes.

상기 용매는 N-메틸피롤리돈(NMP, N-methylpyrrolidone) 또는 γ-부티로락톤(GBL, γ-Butyrolactone)이 사용될 수 있다. γ-부티로락톤(GBL, γ-Butyrolactone)은 유해한 용매인 N-메틸피롤리돈에 비해 해롭지 않은 물질로, 이를 용매로 사용하면 환경 규제에 대응이 가능하다.As the solvent, N-methylpyrrolidone (NMP, N-methylpyrrolidone) or γ-butyrolactone (GBL, γ-Butyrolactone) may be used. γ-butyrolactone (GBL, γ-Butyrolactone) is not harmful compared to the harmful solvent N-methylpyrrolidone, and can be used as a solvent to cope with environmental regulations.

상기 바인더는 폴리아미드이미드를 포함할 수 있다. The binder may comprise polyamideimide.

상기 저마찰 수지 조성물은 시료 #03 및 #04와 같이 내열마모수지로 폴리테트라플루오로에틸렌(PTFE, Polytetrafluoroethylene)을 포함할 수 있다. 그 함량은 5 내지 20 wt%이 될 수 있다. The low friction resin composition may include polytetrafluoroethylene (PTFE, Polytetrafluoroethylene) as a heat-resistant wear resin as in Samples # 03 and # 04. The content may be 5 to 20 wt%.

탄소나노튜브와 함께 다른 고체 윤활제인 그라파이트와 MoS2가 첨가되는 실험예 # 03의 경우에는 내열마모수지는 5 내지 15 wt%가 포함될 수 있다. In the case of Experiment # 03, in which another solid lubricant graphite and MoS 2 are added together with the carbon nanotubes, the heat-resistant wear resin may include 5 to 15 wt%.

또한, 고체 윤활제로 탄소나노튜브만을 포함하는 실험예 # 04의 경우에는 내열마모수지는 10 내지 20 wt%가 포함될 수 있다.
In addition, in the case of Experimental Example # 04 including only carbon nanotubes as a solid lubricant, the heat-resistant wear resin may include 10 to 20 wt%.

실험예 #01의 경우에는 탄소나노튜브와 함께 사용되는 고체 윤활제로 그라파이트만 사용되고 있으며, 상기 그라파이트는 10 내지 20 wt%가 포함될 수 있다.
In Experimental Example # 01, only graphite is used as a solid lubricant used with carbon nanotubes, and the graphite may include 10 to 20 wt%.

실험예 #02의 경우에는 탄소나노튜브와 함께 사용되는 고체 윤활제로 그라파이트와 MoS2를 더 포함하며, 상기 그라파이트는 3 내지 8 wt%가 포함되고, 상기 MoS2는 8 내지 16 wt%가 포함될 수 있다. Experimental Example # 02 may further include graphite and MoS2 as a solid lubricant used with carbon nanotubes, the graphite may include 3 to 8 wt%, and the MoS2 may include 8 to 16 wt%.

또한, 실험예 #03의 경우에도 탄소나노튜브와 함께 사용되는 고체 윤활제로 그라파이트와 MoS2를 더 포함하며, 상기 그라파이트는 2 내지 5 wt%가 포함되고, 상기 MoS2는 5 내지 10 wt%가 포함될 수 있다.
In addition, in Experimental Example # 03, the solid lubricant used together with the carbon nanotubes further includes graphite and MoS 2, the graphite may include 2 to 5 wt%, and the MoS 2 may include 5 to 10 wt%. have.

도 3은 본 발명의 일 실시예에 따른 조성비에 따른 마찰 계수의 변화를 나타내는 그래프이며, 도 4는 본 발명의 일 실시예에 따른 조성비에 따른 마모율의 변화를 나타내는 그래프이다.
3 is a graph showing a change in the friction coefficient according to the composition ratio according to an embodiment of the present invention, Figure 4 is a graph showing a change in wear rate according to the composition ratio according to an embodiment of the present invention.

도 3 및 도 4를 참조하면, 각각의 시료, #01 내지 04의 경우에 있어서, 마찰계수는 각각 0.11, 0.08, 0.05, 0.04로 고체 윤활제로 탄소나노튜브만을 포함하고, 내열마모수지로 폴리테트라플루오로에틸렌을 포함하는 시료 #04의 경우가 가장 낮은 마찰계수를 나타낸다. 3 and 4, in the case of each of the samples, # 01 to 04, the friction coefficient is 0.11, 0.08, 0.05, 0.04, respectively, containing only carbon nanotubes as a solid lubricant, polytetra as a heat-resistant wear resin Sample # 04 containing fluoroethylene has the lowest coefficient of friction.

또한, 각각의 시료, #01 내지 04의 경우에 있어서, 마모율은 각각 3.6 X 10-6 mm3/Nm, 2.2 X 10-6 mm3/Nm, 1.5 X 10-6 mm3/Nm, 및 1.5 X 10-6 mm3/Nm로, 고체 윤활제로 탄소나노튜브만을 포함하고, 내열마모수지로 폴리테트라플루오로에틸렌을 포함하는 시료 #04와 함께 그라파이트, MoS2, 및 탄소나노튜브를 포함하는 고체 윤활제와 내열마모수지로 폴리테트라플루오로에틸렌을 포함하는 시료 #03의 경우가 가장 낮은 마모율을 나타낸다.
In addition, for each sample, # 01 to 04, the wear rate was 3.6 X 10 -6 mm 3 / Nm, 2.2 X 10 -6 mm 3 / Nm, 1.5 X 10 -6 mm 3 / Nm, and 1.5, respectively. Solid lubricant comprising graphite, MoS2, and carbon nanotubes with Sample # 04 containing only carbon nanotubes as a solid lubricant and polytetrafluoroethylene as a heat resistant resin at X 10-6 mm 3 / Nm And sample # 03 containing polytetrafluoroethylene as the heat-resistant wear resin showed the lowest wear rate.

고체 윤활제로 그라파이트만을 사용하는 종래기술에 따른 비교예와 비교하여, 그라파이트 및 탄소나노튜브를 고체 윤활제로 포함하는 시료 #01의 마찰계수가 약 27% 정도 감소하였음을 확인할 수 있다. Compared with the comparative example according to the prior art using only graphite as a solid lubricant, it can be seen that the friction coefficient of Sample # 01 including graphite and carbon nanotubes as a solid lubricant is reduced by about 27%.

또한, 고체 윤활제로 그라파이트만을 사용하는 종래기술에 따른 비교예와 비교하여, 그라파이트 및 탄소나노튜브를 고체 윤활제로 포함하는 시료 #01의 마모율은 가 약 55% 정도 감소하였음을 확인할 수 있다.
In addition, compared to the comparative example according to the prior art using only graphite as a solid lubricant, it can be seen that the wear rate of Sample # 01 including graphite and carbon nanotubes as a solid lubricant is reduced by about 55%.

특히, 내열 마모 수지로 폴리테트라플루오로에틸렌과 고체 윤활제로 탄소나노튜브만을 첨가한 경우인 시료 #04의 경우는 탄소나노튜브가 포함되지 않은 종래기술에 따른 비교예와 비교하여, 마찰계수는 약 73% 감소하고, 마모율은 약 81% 감소하였음을 확인할 수 있었다. Particularly, in case of sample # 04, in which polytetrafluoroethylene and a solid lubricant were added only carbon nanotubes as the heat-resistant wear resin, the coefficient of friction was about as compared with the comparative example according to the prior art which does not include carbon nanotubes. 73% decrease, the wear rate was confirmed that the reduction of about 81%.

Claims (13)

용매;
바인더; 및
탄소나노튜브(CNT)를 포함하는 고체 윤활제;
를 포함하는 저마찰 수지 조성물.
menstruum;
bookbinder; And
Solid lubricants including carbon nanotubes (CNT);
Low friction resin composition comprising a.
제 1 항에 있어서,
상기 용매는 40 내지 60 wt%,
상기 바인더는 10 내지 40 wt%, 및
상기 탄소나노튜브는 0.5 wt% 내지 5.0 wt%를 포함하는 저마찰 수지 조성물.
The method of claim 1,
The solvent is 40 to 60 wt%,
The binder is 10 to 40 wt%, and
The carbon nanotubes are low friction resin composition comprising 0.5 wt% to 5.0 wt%.
제 1 항 또는 제 2 항에 있어서,
내열마모수지를 더 포함하는 저마찰 수지 조성물.
3. The method according to claim 1 or 2,
A low friction resin composition further comprising a heat resistant wear resin.
제 3 항에 있어서,
상기 내열마모수지는 폴리테트라플루오로에틸렌(PTFE)을 포함하는 저마찰 수지 조성물.
The method of claim 3, wherein
The heat-resistant wear resin is a low friction resin composition containing polytetrafluoroethylene (PTFE).
제 4 항에 있어서,
상기 내열마모수지는 5 내지 20 wt%가 포함되는 저마찰 수지 조성물.
5. The method of claim 4,
The heat-resistant wear resin is a low friction resin composition containing 5 to 20 wt%.
제 5 항에 있어서,
상기 내열마모수지는 5 내지 15 wt%가 포함되는 저마찰 수지 조성물.
The method of claim 5, wherein
The heat-resistant wear resin is low friction resin composition containing 5 to 15 wt%.
제 1 항 또는 제 2 항에 있어서,
상기 고체 윤활제는 그라파이트(Graphite)를 더 포함하며,
상기 그라파이트는 10 내지 20 wt%가 포함되는 저마찰 수지 조성물.
3. The method according to claim 1 or 2,
The solid lubricant further includes graphite (Graphite),
The graphite is a low friction resin composition containing 10 to 20 wt%.
제 1 항 또는 제 2 항에 있어서,
상기 고체 윤활제는 그라파이트 및 MoS2를 더 포함하며,
상기 그라파이트는 3 내지 8 wt%가 포함되고, 상기 MoS2는 8 내지 16 wt%가 포함될 수 저마찰 수지 조성물.
3. The method according to claim 1 or 2,
The solid lubricant further includes graphite and MoS2,
The graphite may contain 3 to 8 wt%, the MoS 2 may include 8 to 16 wt% low friction resin composition.
제 1 항 또는 제 2 항에 있어서,
상기 고체 윤활제는 그라파이트 및 MoS2를 더 포함하며,
상기 그라파이트는 2 내지 5 wt%가 포함되고, 상기 MoS2는 5 내지 10 wt%가 포함되는 저마찰 수지 조성물.
3. The method according to claim 1 or 2,
The solid lubricant further includes graphite and MoS2,
The graphite is included in the 2 to 5 wt%, MoS2 is included in the low friction resin composition 5 to 10 wt%.
제 1 항에 있어서,
상기 바인더는 폴리아미드이미드(PAI)를 포함하는 저마찰 수지 조성물.
The method of claim 1,
The binder is a low friction resin composition containing polyamideimide (PAI).
제 1 항에 있어서,
상기 용매는 N-메틸피롤리돈(NMP) 또는 γ-부티로락톤(GBL)을 포함하는 저마찰 수지 조성물.
The method of claim 1,
The solvent is low friction resin composition comprising N-methylpyrrolidone (NMP) or γ-butyrolactone (GBL).
γ-부티로락톤 40 내지 60 wt%;
폴리아미드이미드 10 내지 40 wt%;
그라파이트 2 내지 10 wt%;
MoS2 2 내지 10 wt%;
탄소나노튜브 0.5 내지 1.5 wt%; 및
폴리테트라플루오로에틸렌 5 내지 15 wt%;
를 포함하는 저마찰 수지 조성물.
γ-butyrolactone 40 to 60 wt%;
Polyamideimide 10-40 wt%;
Graphite 2-10 wt%;
MoS 2 2-10 wt%;
0.5 to 1.5 wt% carbon nanotubes; And
Polytetrafluoroethylene 5-15 wt%;
Low friction resin composition comprising a.
제 1 항 또는 제 12 항에 따른 저마찰 수지 조성물을 포함하는 차량용 엔진 코팅제. An engine coating agent for a vehicle comprising the low friction resin composition according to claim 1.
KR1020120078171A 2012-07-18 2012-07-18 Low friction resin composition and coating material for automobile engine including the same KR20140011627A (en)

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CN104403484A (en) * 2014-12-15 2015-03-11 西安瑞璘表面工程有限公司 Composite nano coating for oil casing threads and preparation method and use method of composite nano coating
CN106010220A (en) * 2016-06-17 2016-10-12 浙江正林机械制造有限公司 Formula of polyimide coating for Roots blower, Roots blower and coating technology
EP3239252A1 (en) * 2016-04-29 2017-11-01 Dong Yang Piston Co., Ltd. Resin composition for coating engine piston and method of fabricating the same
KR102050583B1 (en) * 2018-11-20 2019-12-03 주식회사 성진엔씨 Lubricant comprising spherical graphite nanoparticles
CN111764842A (en) * 2020-06-11 2020-10-13 上海海隆石油管材研究所 Environment-friendly process for surface treatment of drilling tool joint

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104403484A (en) * 2014-12-15 2015-03-11 西安瑞璘表面工程有限公司 Composite nano coating for oil casing threads and preparation method and use method of composite nano coating
EP3239252A1 (en) * 2016-04-29 2017-11-01 Dong Yang Piston Co., Ltd. Resin composition for coating engine piston and method of fabricating the same
CN106010220A (en) * 2016-06-17 2016-10-12 浙江正林机械制造有限公司 Formula of polyimide coating for Roots blower, Roots blower and coating technology
CN106010220B (en) * 2016-06-17 2018-03-27 浙江正林机械制造有限公司 A kind of polyimide coating formula and roots blower and coating processes for roots blower
KR102050583B1 (en) * 2018-11-20 2019-12-03 주식회사 성진엔씨 Lubricant comprising spherical graphite nanoparticles
WO2020106061A1 (en) * 2018-11-20 2020-05-28 주식회사 성진엔씨 Lubricant comprising spherical graphite nanoparticles
US11530364B2 (en) 2018-11-20 2022-12-20 HongWoo Lee Lubricant comprising spherical graphite nanoparticles
CN111764842A (en) * 2020-06-11 2020-10-13 上海海隆石油管材研究所 Environment-friendly process for surface treatment of drilling tool joint

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