KR102113797B1 - Combination Composition for Cleaning and Lubricating - Google Patents

Abstract

The present invention relates to a composite composition for cleaning and lubrication, including: a detergent composition (A) including an additive which includes a first potassium hydroxide in a solution state, a second potassium hydroxide including potassium hydroxide in a solid state, an amine compound, phosphate, and lye; and a lubricant composition (B) including 50 to 60 wt% of a base oil, 18 to 23 wt% of fluorographene, 20 to 30 wt% of an organic molybdenum-amine compound, and 0.5 to 2.0 wt% of an organic friction reducing agent, wherein the composite composition includes 50 to 60 w% of the detergent composition (A). According to the present invention, while minimizing breakage or damage to vehicle engine components or fuel injection injector components, contaminants such as carbon, sludge, and ash adhering to the injector components of a vehicle, such as a backflow outlet where contamination is concentrated are effectively cleaned. In addition, the composite composition is used alone or together with an engine oil in an engine or an injector of the vehicle to improve physical properties such as a friction coefficient, a viscosity index, low-temperature fluidity, and oxidation stability of components, so that efficiency of the engine and the injector is maximized, fuel efficiency of the vehicle is improved, and fumes are reduced.

Description

Combination Composition for Cleaning and Lubricating

The present invention relates to a cleaning and lubricating composite composition, and more specifically, it is used alone or in combination with engine oil in a vehicle engine or an injector to improve physical properties such as friction coefficient, viscosity index, low-temperature fluidity, and oxidation stability of parts. It relates to a cleaning and lubricating composite composition that can maximize the efficiency of, improve the fuel efficiency of the vehicle and reduce fumes. In addition, the present invention relates to a cleaning and lubricating composite composition capable of effectively cleaning contaminants such as carbon, sludge, and ash adhering to an injector part while minimizing damage or damage to an automobile engine part or a fuel injection injector component. .

Automobiles that use internal combustion engines are being identified as the main causes of environmental pollution and global warming, and are focusing on exhaust gas treatment and fuel efficiency improvement technologies to reduce environmental pollution and reduce greenhouse gas emissions such as carbon dioxide.

The regulation of automobile exhaust gas to prevent environmental pollution also limits the emission of carbon monoxide, nitrogen oxides and particulate matter, and to satisfy this, catalysts and filters for exhaust gas treatment must be installed. In addition, it is essential to use a lubricant that can reduce engine friction to reduce carbon dioxide emissions to prevent global warming.

However, many ash components are used as main additives in the manufacture of lubricants capable of reducing friction, and these ash-based additives are mixed into the combustion chamber during engine combustion and adversely affect the filter for exhaust gas treatment. Although an ashless engine oil with reduced ash content has been developed, it is necessary to develop an ashless engine oil technology that can improve fuel efficiency by reducing engine friction.

The engine oil circulates through the oil tank, oil strainer, oil pump, oil filter, oil cooler, metal friction surface, oil tank, and serves to reduce friction and wear of various devices according to the operation of the engine, so that the engine operates smoothly Make it possible. Specifically, the engine has a portion that moves linearly, such as the operation of a cylinder and a piston, and there is also a portion that rotates, such as a crankshaft and a camshaft. When the metals in the portion where the motion friction occurs as described above come into contact with each other, friction heat is generated by the motion friction, and the surface of the friction surface where the motion friction occurs is roughened, and the rough friction surface is caused by friction. It can easily wear out or cause problems such as adhesion to each other by frictional heat.

When the engine oil is injected into the friction surface of the metal to prevent the above problems, the engine oil is covered on the metal surface to form an oil film. The oil film turns solid friction between metals into fluid friction between lubricants, and mechanical friction and wear between metals is reduced. In addition, the heat generated by the engine is moved to another place by the engine oil to help the engine cool down. In addition, the engine oil has a sealing function that prevents leakage of high pressure gas from the cylinder, a cleaning action that absorbs and cleans impurities from the flow of the engine oil, a stress distribution function that distributes pressure, and an antirust action that prevents the penetration of moisture or corrosive gas. It also plays a role of protecting the durability of the engine by acting as a back.

However, as an additive used in engine oil, a dispersant prevents the aggregation of impurities and prevents the viscosity of the oil from excessively increasing. As the dispersant, a metal salt type dispersant is frequently used, and the metal salt dispersant has a problem of generating ash during combustion of engine oil.

In addition, as an additive used in engine oil, a detergent serves to protect the engine by preventing deposits on the engine piston and the like. Most of these detergents are in the form of metal soaps, and are basically composed of organic acids and metal salts. However, metal soap-type detergents have a problem of generating ash when burning engine oil.

In addition, engine oil additives are increasingly trying to focus on fuel saving in vehicles to respond to environmental problems. Therefore, the addition of engine lubricants to reduce friction can be the most important factor in reducing fuel consumption. In order to achieve this effect, additives for adjusting the viscosity improving polymer or the friction coefficient have been used. When chemical additives are used, side effects such as increased corrosion of lubricants for specific ferrous metal parts or non-ferrous metal parts occur. There have been disadvantages.

On the other hand, the GDI (Gasoline Direct Injection engine) engine among automobile engines is an engine capable of completely burning in a state in which the mixture ratio is sparse by injecting gasoline directly into a cylinder pre-filled with air. Here, an injector is used as a member that provides gasoline into the cylinder. That is, the injector of a vehicle is a device that sends fuel to the engine. After driving for a long period of time, carbon accumulates in these injectors, clogging the injector nozzles, causing malfunctions or deteriorating engine output and causing fumes, so use a separate injector cleaner after running for a certain period of time or after a certain period of time. The injector nozzle needs to be cleaned.

On the other hand, the fuel injection system for supplying and controlling fuel to a diesel engine, as shown in FIG. 1, the fuel is first transferred to the common rail due to the high-pressure fuel pump, and then stored under pressure, and then the fuel is used for the common rail. It consists of a system that allows all injectors from the rail to be supplied with the same pressure. At this time, an injector, which is a device that sends fuel to an engine cylinder, is mainly contaminated.

Referring to FIG. 2, the operation structure of the general injector 100 can be seen. When a current is applied to the solenoid 101 (solenoid) inside the injector 100, a magnetic field is formed while the control valve 110 is opened and the internal pressure is It is a structure in which the high pressure fuel is injected through the injector nozzle 103 while the plunger 102 (plunger) is opened by the change. And when the current is cut off in the solenoid 101, the fuel injection is stopped while being restored back to the original state by the elastic force of the valve spring 104 (valve spring). There is another method, among which the piezo injector method adopts a structure in which a control valve is opened and closed by a piezo actuator when a voltage is applied. The engines of automobiles are equipped with these injectors to be supplied with fuel. Whatever type of injectors are used, carbon is accumulated in the injectors after long-term driving of the vehicle, which causes the performance of the vehicle to deteriorate.

In particular, in the case of a diesel engine of the common rail direct injection type (Common Rail Direct Injection Type), each injector is connected to the common rail and mounted inside each cylinder. In addition to being exposed as it is, since it directly contacts the carbon generated in the combustion process, the injector nozzle is clogged to cause engine failure, or it is a direct cause of engine output deterioration and soot generation. In addition, due to the characteristics of diesel fuel, various chemicals added to the fuel cause chemical contamination and foreign matter deposition inside the fuel injection system, and there is a fear of operation defect.

For this reason, the user should perform a task of cleaning the injector nozzle using a separate injector cleaner after a certain period of driving. The injector cleaner is for removing impurities such as carbon and sludge that adhere to the injector, and is a device for dissolving and removing the impurities by supplying a cleaning agent to the engine's fuel system. There are two main types of diesel engine injector cleaning: fuel additives that circulate by adding chemicals directly to the fuel, and methods of injecting and cleaning the cleaning fluid directly into the combustion chamber.

However, in the case of the fuel additive method, the cost is low and the operation is simple, but the effect of cleaning the injector is insignificant because the chemical is actually mixed with the fuel. In addition, in the case of a method in which the cleaning liquid is directly injected into the combustion chamber to burn, the engine is burned using the cleaning liquid rather than the fuel, which may cause damage to the engine and secondary problems of the fuel injection system. Basically, the diesel engine has a structure in which fuel is compressed at a high pressure by a high pressure pump and injected directly into an injector. When this method is used, the diesel engine high pressure pump idles for a certain period of time or more, causing wear of the high pressure pump and internal parts. There was a big problem in terms of environmental damage due to the risk of breakage and not only an excessive load on the engine, but also excessive smoke caused by idling. Moreover, this type of injector cleaning apparatus has a disadvantage in that the effect of injector cleaning is not continuous, while the operation is expensive.

Korean Registered Patent No. 10-1549149 (Registration Date 2015.08.26.) Korean Registered Patent No. 10-1794349 (Registration Date 2017.10.31.)

The object of the present invention is to minimize the damage or damage to the automobile engine parts or fuel injection injector components, while effectively contaminants such as carbon, sludge, and ash that adhere to the injector parts of the vehicle, such as a reverse flow outlet where concentration is concentrated. It is to provide a cleaning and lubricating composite composition that can be cleaned.

In addition, it is used alone or in combination with engine oil in a vehicle's engine or injector to improve properties such as friction coefficient, viscosity index, low-temperature fluidity, and oxidation stability of parts to maximize the efficiency of the engine and injector, improve the fuel efficiency of the vehicle, It is to provide a cleaning and lubricating composite composition capable of reducing soot.

In order to achieve this object, the cleaning and lubricating composite composition according to the present invention includes first potassium hydroxide in solution; Second potassium hydroxide including potassium hydroxide in a solid state; Amine compounds; phosphate; And 50% to 60% by weight of the detergent composition (A) and the base oil comprising an additive comprising lye; Fluorographene 18 to 23% by weight; 20 to 30% by weight of an organic molybdenum-amine compound; And 0.5 to 2.0% by weight of an organic friction reducing agent; It includes a lubricant composition (B) comprising a, but may be configured to include the cleaning agent composition (A) in 50 to 60% by weight.

The present invention also provides first potassium hydroxide in solution to achieve the above object; Second potassium hydroxide including potassium hydroxide in a solid state; Amine compounds; phosphate; And it provides a detergent composition comprising an additive comprising lye.

The composition comprises 22 to 25% by weight of the first potassium hydroxide, 25 to 30% by weight of the second potassium hydroxide, 11 to 15% by weight of the amine compound, 28 to 32% by weight of the phosphate, and 9 to 12% by weight of the additive It can contain.

The second potassium hydroxide may further include potassium hydroxide ethanol (KOH Ethanol).

The amine compounds include ammonia; Pyridine; 2-ethylpyridine; 2-methoxypyridine; 3-methoxypyridine; 2-picoline; Dimethylpyridine; Piperidine; Piperazine; Triethylamine; Triethanolamine; Aminoethylethanolamine; Choline; N-methylaminoethanol; Aminoethoxyethanol; Dimethylaminoethoxyethanol; Diethanolamine; N-methyldiethanolamine; Ethylamine; Methylamine; Isobutylamine; Benzylamine; t-butylamine; Tributylamine; Dipropylamine; Dimethylamine; Diglycolamine; And monoethanolamine; may be a compound selected from the group consisting of.

The additive may include 45 to 55% by weight of the lye.

The additive may further include sodium hydroxide (NaOH), calcium hydroxide (Ca (OH) ₂ ) and potassium oxide (K ₂ O).

The present invention also 50 to 60% by weight of base oil to achieve the above object; Fluorographene 18 to 23% by weight; 20 to 30% by weight of an organic molybdenum-amine compound; And it provides a lubricant composition comprising an organic friction reducing agent 0.5 to 2.0% by weight.

The base oil may be a mineral base oil or a synthetic base oil.

The fluorographene may be fluorographene in which at least 70% of the carbon atoms of graphene are each bonded to one fluorine atom, and the fluorine atom is bonded to both surfaces of the graphene plane.

The organic molybdenum-amine compound may be a reaction product of Amides, coco, N, N-bis (hydroxyethyl) and coco monoglycerides and molybdenum oxide.

The organic friction reducing agent is at least one nitrogen selected from fatty amides or fatty acid amides obtained by polymerization of selective alkoxylated fatty amines, fatty acid amines and carboxylic acids It may be a nitrogen-containing organic friction modifier.

The organic friction reducing agent is selected from the following fatty acid amine of Formula 1,

[Formula 1]

R ₃ , R ₄ , R ₅ are each hydrogen or an aliphatic chain containing 1 to 150 carbon atoms, and at least one R ₃ , R ₄ or R ₅ chain contains at least 7 carbon atoms Fatty acid aliphatic chain and n may be an integer of 1 or more.

The organic friction reducing agent is selected from the following diethanolamine of Formula 2,

[Formula 2]

R ₁₁ may be a fatty aliphatic chain containing 7 to 150 carbon atoms.

The organic friction reducing agent is selected from fatty amides or fatty imides obtained by condensation of dicarboxylic acid of Formula 3 and compound R ₁₄ R ₁₅ NH of Formula 4,

[Formula 3]

R ₁₂ and R ₁₃ are each a hydrogen or hydrocarbon group, or R ₁₂ and R ₁₃ hydrocarbon group form a ring, and R ₁₄ and R ₁₅ are each hydrogen or an aliphatic chain containing 1 to 150 carbon atoms, or It may be a fatty aliphatic chain containing at least 7 carbon atoms.

The cleaning and lubricating composite composition according to the present invention minimizes damage or damage to automobile engine parts or fuel injection injector components, while carbon or sludge, ash, etc. that adhere to injector parts of vehicles, such as a reverse flow outlet where concentration is concentrated. There is an effect that can effectively clean the pollutants of.

In addition, it is used alone or in combination with engine oil in a vehicle's engine or injector to improve properties such as friction coefficient, viscosity index, low-temperature fluidity, and oxidation stability of parts to maximize the efficiency of the engine and injector, improve the fuel efficiency of the vehicle, It has the effect of reducing soot.

1 is a block diagram of a typical automotive diesel engine fuel injection system.
2 is a view showing an injector operation structure of a typical automobile diesel engine.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of related known configurations or functions may obscure the subject matter of the present invention, the detailed description will be omitted. In addition, specific values in describing the embodiments of the present invention are merely examples.

The cleaning and lubricating composite composition according to the present invention includes a cleaning agent composition (A) comprising an additive comprising a first potassium hydroxide in solution, a second potassium hydroxide including potassium hydroxide in a solid state, an amine compound, phosphate and lye, and Contains a lubricant composition (B) comprising 50 to 60% by weight of base oil, 18 to 23% by weight of fluorographene, 20 to 30% by weight of organic molybdenum-amine compound and 0.5 to 2.0% by weight of organic friction reducing agent However, the cleaning agent composition (A) may be configured to include 50 to 60% by weight.

That is, the cleaning and lubricating composite composition according to the present invention consists of a cleaning agent composition (A) comprising potassium hydroxide and phosphate builders, which are alkaline substances having strong cleaning power, and amine-based compounds that provide corrosion inhibitory power, etc. While minimizing damage or damage to components or fuel injection injector components, it is possible to effectively clean contaminants such as carbon, sludge, and ash adhering to the injector components of vehicles such as countercurrent outlets where concentration is concentrated.

In addition, the cleaning and lubricating composite composition according to the present invention, the lubricant composition (B) has excellent resistance to a wide range of chemicals, fluorographene providing high wear resistance to the base material, and organic providing excellent coating and lubricity By including molybdenum-amine compounds, it improves the properties of vehicle components such as engines and injectors by improving the properties such as friction coefficient, viscosity index, low-temperature fluidity, and oxidation stability of automobile engines or injector parts, improving fuel efficiency, improving fuel efficiency Can be reduced.

The present invention provides a detergent composition comprising an additive comprising a first potassium hydroxide in solution, a second potassium hydroxide including potassium hydroxide in a solid state, an amine compound, phosphate and lye.

That is, the detergent composition according to the present invention is prepared by using the properties of potassium hydroxide having strong alkalinity, but the first potassium hydroxide in the solution state and the hydroxide in the solid state so that the alkalinity and the cleaning power of potassium hydroxide can be further maximized. Potassium hydroxide is prepared by mixing a second potassium hydroxide containing potassium, to which phosphate, which is excellent in reactivity with potassium hydroxide and acts as a builder of the detergent composition, is added, and the ability to inhibit corrosion and adsorption on the surface of injector components It is manufactured by adding an amine-based compound that provides carbon, sludge, and ash that adheres to injector parts of vehicles, such as countercurrent outlets, where contamination is concentrated while minimizing damage or damage to automotive engine parts or fuel injection injector components when used. (Ash) can effectively clean contaminants.

The composition comprises 22 to 25% by weight of the first potassium hydroxide, 25 to 30% by weight of the second potassium hydroxide, 11 to 15% by weight of the amine compound, 28 to 32% by weight of the phosphate, and 9 to 12% by weight of the additive It can contain. That is, the cleaning agent composition is 25 to 30% by weight of the content of the second potassium hydroxide containing solid potassium hydroxide in a slightly higher amount than the content of the first potassium hydroxide solution in the solution of 22 to 25% by weight strong alkalinity By maximizing the cleaning power of the cleaning composition and adding amine compounds that provide corrosion inhibitory and surface adsorption power of the injector components at 11 to 15% by weight, the cleaning power is maximized while minimizing damage to the vehicle engine parts and the injector parts. It is possible to prepare a detergent composition having excellent performance.

The second potassium hydroxide may include potassium hydroxide of various kinds and concentrations in addition to potassium hydroxide in a solid state, thereby improving the cleaning power of potassium hydroxide, and may include, for example, potassium hydroxide ethanol (KOH Ethanol). The potassium hydroxide ethanol may be used, for example, at a concentration of 0.1N, and 1 to 3% by weight, preferably 2% by weight, based on the cleaning composition. In addition, the potassium hydroxide ethanol can provide a stronger reactivity and flammability than an ordinary aqueous potassium hydroxide solution, thereby further maximizing the cleaning performance of potassium hydroxide.

The amine compounds include one or more primary, secondary, or tertiary amine, ammonia, and / or quaternary ammonium hydroxide compounds (eg, alkylammonium hydroxide, alkylarylammonium hydroxide, etc.) Wherein, (i) a species comprising both a carboxylic acid group and an amine group, (ii) a surfactant comprising an amine group, and (iii) a species wherein the amine group is a substituent (e.g., attached to an aryl or heterocyclic moiety) It is not considered an "amine" according to this definition. Amines for the purposes of the present invention include aliphatic primary, secondary, or tertiary amines; 4, 6, 7, 8, 9 or 10 membered saturated or unsaturated amine rings; Alkylammonium hydroxide compounds of the formula R ₁ R ₂ R ₃ R ₄ NOH (where R ₁ , R ₂ , R ₃ and R ₄ are the same or different from each other, and hydrogen and C ₁ -C ₆ alkyl groups (eg For example, methyl, ethyl, propyl, butyl, pentyl or hexyl)); Alkylarylammonium hydroxide compounds of the formula R ₁ R ₂ R ₃ R ₄ NOH (where R ₁ , R ₂ , R ₃ and R ₄ are the same or different from each other, and hydrogen, a C ₁ -C ₆ alkyl group (eg For example, methyl, ethyl, propyl, butyl, pentyl or hexyl)) and substituted or unsubstituted C ₆ -C ₁₀ aryl groups (eg benzyl); And alkanolamines.

In addition, the amine compounds are specifically ammonia; Pyridine; 2-ethylpyridine; 2-methoxypyridine; 3-methoxypyridine; 2-picoline; Dimethylpyridine; Piperidine; Piperazine; Triethylamine; Triethanolamine; Aminoethylethanolamine; Choline; N-methylaminoethanol; Aminoethoxyethanol; Dimethylaminoethoxyethanol; Diethanolamine; N-methyldiethanolamine; Ethylamine; Methylamine; Isobutylamine; Benzylamine; t-butylamine; Tributylamine; Dipropylamine; Dimethylamine; Diglycolamine; And monoethanolamine; may be used a compound selected from the group consisting of, preferably diethanolamine can be used.

The phosphate (phosphate) is a material formed from a multi-atomic ion consisting of one phosphorus and four oxygens or a basic substance, and there are various types of orthophosphate, metaphosphate, diphosphate, triphosphate, etc. Phosphate, PO ₄ ^3- ) can be used. These phosphates function in conjunction with the reactivity with the potassium hydroxide to provide a protective coating on the surfaces of vehicle engine parts and injector parts.

The lye-containing additive may include, for example, 45-55% by weight of the lye, and the balance may be composed of an additive composed of various types of alkaline compounds. Here, the lye (lye) may be used, such as natural potassium carbonate (K ₂ CO ₃ ) obtained by burning plants such as straw or wood, sodium carbonate (Na ₂ CO ₃ ) obtained by burning seaweeds or seafood. In addition, the additive may further contribute to improving the cleaning performance of the potassium hydroxide by further including alkaline solutes such as sodium hydroxide (NaOH), calcium hydroxide (Ca (OH) ₂ ), and potassium oxide (K ₂ O) called lye. have.

In addition, the additives are, for example, sulfuric acid (H ₂ SO ₄ ), ammonia water (NH ₄ OH), nitric acid (HNO ₃ ), hydrofluoric acid (HF), NHF (DHF), phosphoric acid (H ₃ PO ₄ ), BOE and hydrochloric acid (HCl), as well as any chemicals that can remove particles, organic contaminants, inorganic contaminants, metal contaminants, and natural oxides present inside the injector, can be included as an ester type polyester as a coating material Resins, emulsion type acrylic copolymer resins, fluorine polyethylene wax, and the like.

The present invention also, 50 to 60% by weight of the base oil, fluorographene (fluorographene) 18 to 23% by weight; 20 to 30% by weight of an organic molybdenum-amine compound; And it provides a lubricant composition comprising an organic friction reducing agent 0.5 to 2.0% by weight.

That is, the lubricant composition according to the present invention has excellent resistance to a wide range of chemicals in the base oil, fluorographene providing high abrasion resistance to the base material, and organic molybdenum-amine compound and viscosity providing excellent coating and lubricity The lubricant composition can be prepared in a simple manner by mixing an organic friction reducing agent that provides stability, corrosion suppression, dispersing power, etc., and the lubricant composition thus prepared is used alone or in combination with engine oil, such as an engine or injector of a vehicle. By improving the properties of components such as friction coefficient, viscosity index, low-temperature fluidity, and oxidation stability, it is possible to maximize the efficiency of vehicle components such as engines and injectors, improve fuel efficiency, and reduce smoke.

The base oil may be a mineral base oil or synthetic base oil. Specifically, the base oil may include natural oil selected from animal oil, vegetable oil and mineral oil. The mineral oil may be liquid petroleum oil and paraffinic, naphthenic or paraffinic / naphthenic mixed mineral oils that may be further purified by hydrolysis or hydrofinishing processes, or may be solvent treated or acid treated. Mineral oils can be used.

In addition, the synthetic base oils include hydrocarbon oils such as polymerized and interpolymerized olefins, also known as polyalphaolefins, and halo-substituted hydrocarbon oils; Polyphenyl; Alkylated diphenyl ether; And alkylated diphenyl sulfides and their derivatives, analogs and homologues. Other synthetic oils may include esters of various alcohols and dicarboxylic acids, or esters prepared from C ₄ to C ₁₅ monocarboxylic acids and polyols or polyol ethers.

In addition, the natural and synthetic oils may be unrefined, refined or re-refined oil. At this time, 'unrefined oil' means an oil that can be obtained directly from natural or synthetic sources without further purification treatment, and 'refined oil' is added in one or more purification steps to improve one or more properties. Refers to the oil treated with. They can produce oils with improved stability, for example by hydrogenation and oxidation.

In the lubricant composition of the present invention, the base oil may be a single viscosity range oil, or a mixture of a high viscosity range oil and a low viscosity range oil may be used, for example, light oil of a clear off-white liquid based on hydrocarbon. (Diesel) or diesel with additives, usually yellow or green aromatic hydrocarbons, can be used.

In the fluorographene, at least 70% of the carbon atoms of graphene are each bound to one fluorine atom, and fluorine graphene in which the fluorine atoms are bonded to both surfaces of the graphene plane may be used. That is, a functionalized graphene compound containing graphene and fluorine may be used in which the amount of fluorine bound to graphene is 70 atomic% or more of the theoretical maximum stoichiometry possible for the graphene fluorine compound.

For example, 50 atomic% fluorine means that the ratio of fluorine to carbon present in the fluorographene product is 0.50: 1. Ratios greater than 0.50: 1 mean 'fully' fluorinated graphene. We need a ratio of about 0.55: 1 or greater to allow a band gap to be clearly defined in this material. Thus, the amount of fluorine bound to graphene is at least 55 atomic percent of the theoretical maximum stoichiometry possible, at least 75 atomic percent is preferred, and 85 atomic percent of the theoretical maximum stoichiometry possible for the graphene fluorine compound, i.e., fluorine to carbon It is more preferable that the ratio is 0.85: 1.

In addition, fluorine reacts with graphene to bind to graphene to the extent that almost all carbon atoms in the graphene sheet retain fluorine atoms. The bond level of 100 atomic% represents the theoretical case where all the carbon atoms of graphene are each bonded to one fluorine atom. This corresponds to a situation where there is a 1: 1 stoichiometry between the fluorine atom and the carbon atom. In the case of the present invention, the stoichiometry of the graphene fluoride compound referred to as fluorographene has a fluorine to carbon ratio of 0.25: 1 or more. The fluorine atom can bind to graphene on either side of the graphene sheet. That is, fluorination may occur in one or both surfaces of the graphene plane in the fluorine graphene. However, in order to achieve high stoichiometry, it is important that double-sided fluorination can occur, which is an important advantage of the fluorine graphene, and the reactivity of 2D materials exposed on both sides, the reactivity of 3D counterparts in which fluorine must diffuse between atomic planes. It exhibits a much higher characteristic.

Fluorographene provides strong resistance to a wide range of chemicals, fatigue strength, creep resistance, and resistance to crack propagation to the surface on which the lubricant composition is applied or coated, such as inside the vehicle's engine and injector back league lines. It can serve as an excellent protective coating for the surface of parts such as.

The organic molybdenum-amine compound may be an organic molybdenum-amine compound that is a reaction product of Amides, coco, N, N-bis (hydroxyethyl) and coco monoglycerides and molybdenum oxide.

Organic compounds such as Amides, N, N-bis (hydroxyethyl) and coco monoglycerides and molybdenum oxide are organic molybdenum-amine compounds such as Amides, N, N-bis (hydroxyethyl). The compound acts as an organic solvent for various organic compound pollutants generated inside the vehicle's engine or injector to decompose and clean the pollutants, and at the same time, coco monoglycerides and molybdenum oxide It has the characteristics of reducing friction and extending the life of parts by providing lubricity, corrosion suppression, and dispersion.

The organic friction reducing agent is at least one nitrogen selected from fatty amides or fatty acid amides obtained by polymerization of selective alkoxylated fatty amines, fatty acid amines and carboxylic acids It may be a nitrogen-containing organic friction modifier.

The fatty acid amide is a primary, secondary or tertiary monoamine or polyamine, comprising one or more fatty acid chains. The term fatty acid chain here refers to a saturated or unsaturated, optionally branched, non-cyclicaliphatic hydrocarbon chain containing at least 7 carbon atoms.

Fatty acid amines are generally palm oil, palm oil, olive oil, peanut oil, rapeseed oil, sunflower oil, soya oil ), Fatty acids (fat-chains) derived from hydrolysis of triglycerides present in vegetable and animal oils, such as cotton oil or linseed oil, or beef tallow, etc. It is mainly obtained from carboxylic acids (fatty-chain carboxylic acids).

The fatty acid capable of obtaining the fatty acid amide may include 7 to 32 carbon atoms, preferably 8 to 24 carbon atoms, or 10 to 20 carbon atoms, or 12 to 18 carbon atoms.

Examples of these are caprylic acid, pelargonic acid, capric acid, undecylenic acid, lauric acid, and tridecylenic acid ( tridecylenic acid, myristic acid, pentadecylic acid, palmitic acid, margaric acid, stearic acid, isostearic acid , Nonadecylic acid, arachinic acid, heneicosanoic acid, behenic acid, tricosanoic acid, lignoceric acid , Pentacosanoic acid, cerotic acid, heptacosanoic acid, montanic acid, nonacosanoic acid, melissic acid, hens Hentriacontanoic acid, raceroic acid or palmitoleic acid, oleic acid, erucic acid, nervonic acid, linoleic acid , a-linolenic acid, c-linolenic acid, di-homo-c-linolenic acid, arachidonic acid, eicosapentae And unsaturated fatty acids such as eicosapentaenoic acid and docosahexanoic acid.

These fatty acids are dehydrated in the presence of ammonia to produce nitriles, followed by catalytic hydrogenation to produce primary, secondary or tertiary amines.

The organic friction reducing agent (D) may be selected from fatty acid amines represented by the following Chemical Formula 1.

[Formula 1]

Here, R ₃ , R ₄ , R ₅ are each hydrogen or an aliphatic chain containing 1 to 150 carbon atoms, and at least one R ₃ , R ₄ or R ₅ chain contains at least 7 carbon atoms. Fatty acid aliphatic chain containing n is an integer of 1 or more.

The fatty acid amine is preferably obtained from natural vegetable or animal resources. Treatment to reach fatty acid amines starting from natural oils can result in mixtures of primary, secondary and tertiary monoamines and polyamines.

In addition, the organic friction reducing agent is an ethoxylated amine, for example, monoethoxylated or polyethoxylated fatty acid amine obtained from the fatty acid amine, The fatty acid amine may be used by monoethoxylated or polyethoxylated, and may be selected from diethanolamine of the following Chemical Formula 2.

[Formula 2]

Wherein R ₁₁ is a fatty aliphatic chain containing 7 to 150, preferably 7 to 32, preferably 12 to 18 carbon atoms.

In addition, the organic friction reducing agent may be an amide or imide obtained by condensation of the above-described fatty acid amine and carboxylic acid, such as oleylamide, especially primary oleylamide.

Specifically, selectively hydroxylated di, such as malonic acid, succinic acid, malic acid, tartaric acid, phthalic acid, isophthalic acid, etc. It may be an amide or imide obtained by condensation of a carboxylic acid, an aliphatic acid or an aromatic acid, preferably tartaric acid and fatty amine. It can be selected from fatty amides or fatty imides obtained by condensation of dicarboxylic acid and compound R ₁₄ R ₁₅ NH of formula (4).

[Formula 3]

Here, R ₁₂ and R ₁₃ are each a hydrogen or hydrocarbon group or R ₁₂ and R ₁₃ hydrocarbon groups are forming a ring, and R ₁₄ and R ₁₅ are each hydrogen or 1 to 150, preferably 1 to 31 Dog, more preferably an aliphatic chain containing 1 to 26 carbon atoms or a fatty aliphatic chain comprising at least 7 carbon atoms.

The lubricant composition according to the present invention may contain all kinds of additives suitable for their use. These additives are added individually or in the form of a package of additives, to ensure the performance of a certain level of lubricating composition, if necessary, in the European Automobile Manufacturers Association (ACEA) or Japan Automobile Standards Organization (JASO). Examples are described below, but are not limited to:

Dispersant: usually present at 5-8% by weight of the lubricating composition. Dispersants such as succinimide, polyisobutene (PIB), and mannish bases are suspensions of insoluble solid contaminants composed of secondary oxidation products that are formed when engine oil is in use. ) To ensure removal.

Antioxidants: Typically present at 0.5 to 2% by weight of the lubricant composition. Antioxidants slow the deterioration of the oil in use, which can lead to the formation of deposits, the presence of sludge or an increase in oil viscosity. Antioxidants act as radical inhibitors, hydroperoxide destroyers. Among the commonly used antioxidants are phenol type antioxidants and sterically hindered amines. Other types of antioxidants are copper thiophosphate or copper dithiophosphate, salts of copper and carboxylic acid, copper dithiocarbamate, copper sulfonate There are antioxidants for oil-soluble copper compounds such as (copper sulphonate), copper phenate, and copper acetylacetonate. Copper I or II salts of succinic or anhydride are used.

Anti-wear additive: Generally present at 1 to 2% by weight of the lubricating composition. The antiwear agent forms a protective film adsorbed on the surface to protect the friction surface. The most commonly used is zinc dithiophosphate or DTPZn. In addition, there are various phosphorus-containing compounds, sulfur-containing compounds, nitrogen-containing compounds, chlorine-containing compounds, and boron-containing compounds in this category.

When further explaining the detergent composition according to the present invention through the following examples.

[Example 1]

(1) Preparation of second potassium hydroxide

Second potassium hydroxide was prepared by mixing solid potassium hydroxide 70% by weight, 0.1N potassium hydroxide ethanol (KOH Ethanol) 8% by weight, and water 22% by weight.

(2) Additive manufacturing

50% by weight of mixed lye containing both potassium carbonate and sodium carbonate, 20% by weight of sodium hydroxide (NaOH), 20% by weight of potassium hydroxide (Ca (OH) ₂ ), and 10% by weight of potassium oxide (K ₂ O) Additives were prepared.

(3) Preparation of detergent composition

23% by weight of the first potassium hydroxide in solution, 26% by weight of the second prepared potassium hydroxide, 12% by weight of diethanolamine as an amine compound, 29% by weight of phosphate, 10% by weight of the prepared additive To prepare a detergent composition.

[Comparative Example 1-1]

In Example 1, 19% by weight of first potassium hydroxide in solution, 34% by weight of the second prepared potassium hydroxide, 10% by weight of diethanolamine as an amine compound, 23% by weight of phosphate, 14% by weight of the prepared additive A detergent composition was prepared in the same manner as in Example 1, except that the mixture was in a percentage ratio.

[Comparative Example 1-2]

In Example 1, 17% by weight of the first potassium hydroxide in solution, 40% by weight of the second prepared potassium hydroxide, 7% by weight of diethanolamine as an amine compound, 19% by weight of phosphate, 17% by weight of the prepared additive A detergent composition was prepared in the same manner as in Example 1, except that the mixture was in a percentage ratio.

[Experimental Example 1]

In order to compare the cleaning power of the cleaning composition of the example and the cleaning composition of the comparative example, each cleaning composition is sprayed on the injector back league line where contamination of the injector is concentrated to perform a cleaning operation, and the average thickness of deposits is measured after 5 minutes. Then, the washing ratio was derived by the following washing ratio formula.

[Cleaning ratio formula]

Cleaning rate = (average thickness of deposit before washing-average thickness of deposit after washing) / average thickness of deposit before washing X 100

When the cleaning ratio values for the injector back league lines of the cleaning composition of the above-described Examples and the cleaning composition of the comparative examples are summarized, it was confirmed that they appear as Table 1 below.

[Table 1]

As can be seen in Table 1, it can be seen that the cleaning composition of the embodiment according to the present invention has significantly better cleaning power for parts such as the injector back league line than the cleaning composition of the comparative example having a different composition content composition. have.

[Example 2]

The lubricant composition according to the present invention was prepared with the following composition and content.

-55% by weight as a base oil

-20% by weight of fluorine graphene in the form of a white fine powder with a nominal composition of CF1.1 ± 0.05 measured by X-ray light emission spectroscopy (XPS)

-Amide, coco, N, N-bis (hydroxyethyl) and coco monoglycerides and organic molybdenum oxide, a reaction product of molybdenum oxide, 24 wt%

-1.0% by weight of organic friction reducing agent prepared by mixing fatty amides and tartaric acid imide

[Comparative Example 2-1]

The lubricant composition was prepared in the same manner as in Example 2, except that the content of fluorographene in Example 2 was 10% by weight, and the content of diesel base oil was added at 65% by weight.

[Comparative Example 2-2]

A lubricant composition was prepared in the same manner as in Example 2, except that the content of fluorographene in Example 2 was 30% by weight, and the content of light oil base oil was added at 45% by weight.

[Comparative Example 2-3]

Only commercially available engine oils without fluorographene were used.

[Experimental Example 2]

The equipment used in the experiment was an engine displacement of 11,000 cc, and a 4-stroke turbocharged common rail engine was connected to the engine dynamometer and tested in ND-13 mode, and the engine oil used in this engine was 30 liters. Thus, the fuel composition and the exhaust gas were tested by putting lubricant compositions of Examples and Comparative Examples into an engine containing 30 liters of engine oil.

Table 2 below shows the results of measuring fuel consumption and exhaust gas by an engine dynamo test using the lubricant compositions of Examples and Comparative Examples, respectively.

[Table 2]

As can be seen in Table 2, the lubricant composition according to the embodiment of the present invention shows a significantly higher harmful gas reduction rate than the lubricant composition of the comparative example, and at the same time, it has been shown that the fuel efficiency improvement effect is excellent. That is, it can be seen that the combustion efficiency of the vehicle engine is improved to use less fuel, and the reduction of CO ₂ can simultaneously achieve the greenhouse gas reduction effect.

As described above, in the present invention, specific matters such as specific components and the like have been described by limited embodiments and drawings, but these are provided only to help the overall understanding of the present invention, and the present invention is not limited to the above embodiments , Anyone having ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from these descriptions.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims as well as the claims described below belong to the scope of the spirit of the present invention. .

Claims (15)

First potassium hydroxide in solution;
Second potassium hydroxide including potassium hydroxide in a solid state;
Amine compounds;
phosphate; And
Additives containing lye;
A detergent composition comprising (A); And
50-60% by weight of base oil;
Fluorographene 18 to 23% by weight;
20 to 30% by weight of an organic molybdenum-amine compound; And
0.5 to 2.0% by weight of an organic friction reducing agent;
A lubricant composition comprising (B);
A cleaning and lubricating composite composition comprising 50% to 60% by weight of the cleaning agent composition (A).
First potassium hydroxide in solution;
Second potassium hydroxide including potassium hydroxide in a solid state;
Amine compounds;
phosphate; And
Additives containing lye;
Including,
22 to 25% by weight of the first potassium hydroxide, 25 to 30% by weight of the second potassium hydroxide, 11 to 15% by weight of amine compounds, 28 to 32% by weight of phosphate, and 9 to 12% by weight of additives Cleanser composition.
delete According to claim 2,
The second potassium hydroxide is a detergent composition further comprising potassium hydroxide ethanol (KOH Ethanol).
According to claim 2,
The amine compounds include ammonia; Pyridine; 2-ethylpyridine; 2-methoxypyridine; 3-methoxypyridine; 2-picoline; Dimethylpyridine; Piperidine; Piperazine; Triethylamine; Triethanolamine; Aminoethylethanolamine; Choline; N-methylaminoethanol; Aminoethoxyethanol; Dimethylaminoethoxyethanol; Diethanolamine; N-methyldiethanolamine; Ethylamine; Methylamine; Isobutylamine; Benzylamine; t-butylamine; Tributylamine; Dipropylamine; Dimethylamine; Diglycolamine; And monoethanolamine; a detergent composition that is a compound selected from the group consisting of.
According to claim 2,
The additive is a detergent composition comprising 45 to 55% by weight of the lye.
According to claim 2,
The additive is a detergent composition further comprising sodium hydroxide (NaOH), calcium hydroxide (Ca (OH) ₂ ) and potassium oxide (K ₂ O).
50-60% by weight of base oil;
Fluorographene 18 to 23% by weight;
20 to 30% by weight of an organic molybdenum-amine compound; And
0.5 to 2.0 wt% of an organic friction reducing agent;
Lubricant composition comprising a.
The method of claim 8,
The base oil is a mineral base oil or a synthetic base oil lubricant composition.
The method of claim 8,
The fluorographene is a lubricant composition in which at least 70% of the carbon atoms of graphene are each bound to one fluorine atom, and the fluorine atom is fluorographene bonded to both surfaces of the graphene plane.
The method of claim 8,
The organic molybdenum-amine compound is a lubricant composition that is a reaction product of Amides, coco, N, N-bis (hydroxyethyl) and coco monoglycerides and molybdenum oxide.
The method of claim 8,
The organic friction reducing agent is at least one nitrogen selected from fatty amides or fatty acid amides obtained by polymerization of selective alkoxylated fatty amines, fatty acid amines and carboxylic acids -A lubricant composition that is a nitrogen-containing organic friction modifier.
The method of claim 8,
The organic friction reducing agent is selected from the following fatty acid amine of Formula 1,
[Formula 1]

R ₃ , R ₄ , R ₅ are each hydrogen or an aliphatic chain containing 1 to 150 carbon atoms, and at least one R ₃ , R ₄ or R ₅ chain contains at least 7 carbon atoms A lubricant composition wherein the fatty acid is an aliphatic chain and n is an integer of 1 or more.
The method of claim 8,
The organic friction reducing agent is selected from the following diethanolamine of Formula 2,
[Formula 2]

R ₁₁ is a fatty acid aliphatic chain (fatty aliphatic chain) containing 7 to 150 carbon atoms.
The method of claim 8,
The organic friction reducing agent is selected from fatty amides or fatty imides obtained by condensation of dicarboxylic acid of Formula 3 and compound R ₁₄ R ₁₅ NH of Formula 4,
[Formula 3]

R ₁₂ and R ₁₃ are each a hydrogen or hydrocarbon group, or R ₁₂ and R ₁₃ hydrocarbon group form a ring, and R ₁₄ and R ₁₅ are each hydrogen or an aliphatic chain containing 1 to 150 carbon atoms, or A lubricant composition that is a fatty aliphatic chain containing at least 7 carbon atoms.

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