CN112680289A - Carbon deposit cleaning agent for aviation engine and preparation method thereof - Google Patents
Carbon deposit cleaning agent for aviation engine and preparation method thereof Download PDFInfo
- Publication number
- CN112680289A CN112680289A CN202011561858.7A CN202011561858A CN112680289A CN 112680289 A CN112680289 A CN 112680289A CN 202011561858 A CN202011561858 A CN 202011561858A CN 112680289 A CN112680289 A CN 112680289A
- Authority
- CN
- China
- Prior art keywords
- parts
- sodium
- succinic anhydride
- corrosion inhibitor
- ether
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides a carbon deposition cleaning agent for an aviation engine and a preparation method thereof, wherein the carbon deposition cleaning agent for the aviation engine comprises the following components in parts by weight: 10-25 parts of alcohol ether solvent, 5-10 parts of closed dodecyl benzene sulfonic acid, 2-8 parts of sophorose ester biosurfactant, 2-5 parts of alkenyl succinic anhydride, 2-5 parts of complexing agent, 2-5 parts of ternary polycarboxylic acid composition, 1-3 parts of compound corrosion inhibitor, 1-10 parts of alkalinity improver, 0.1-1.0 part of defoaming agent and 50-70 parts of water. The carbon deposition cleaning agent for the aviation engine is suitable for components made of different materials in the engine, can protect the components of the engine from corrosion, oxidation and discoloration, and can clean carbon deposition and pollutants on the components of the engine, thereby ensuring a good cleaning effect.
Description
Technical Field
The invention belongs to the technical field of cleaning of aviation engines, and particularly relates to a carbon deposition cleaning agent for an aviation engine and a preparation method thereof.
Background
With the rapid development of modern industrial aerospace, the carbon deposition cleaning of the engine draws more and more attention from various aspects. The fuel oil and the air in the combustion chamber of the engine are mixed and then combusted, part of smoke generated after combustion can form carbon deposit to be deposited on objects due to factors such as atomization and the like, and the carbon deposit mainly contains hydroxy acid, asphaltene, oil coke, ash and the like due to relatively complex components. The carbon deposit attachments are generally cation attachments, cations of the carbon deposit attachments lose one or more electrons, so that the number of the electrons at the outermost layer of the carbon deposit attachments reaches a stable structure of 8 or 2 electrons, the larger the atomic radius of atoms, the stronger the electron losing capability of the atoms, the stronger the carbon deposit cation deposits are tightly adsorbed on the metal surface, and the carbon deposit cation deposits are often difficult to clean when being tightly adsorbed on the surface of an inner cavity part of an engine.
After the carbon deposit is formed, the normal operation of the engine can be seriously influenced, the power of the engine is reduced, the carbon deposit can cause local overheating, and a piston can be damaged in serious cases. In order to protect the normal work of the engine and prolong the service life of the engine, the method for removing the carbon deposit from the engine is an economic and effective method.
At present, the cleaning method of carbon deposition mainly comprises a mechanical method and a chemical method. The mechanical method generally comprises mechanical tool cleaning and soft and hard abrasive particle cleaning, the method has low productivity, carbon deposition on the part which is difficult to contact with the tool is not easy to completely remove, scratches are left on the surface and become new carbon deposition to form a center; the chemical method generally adopts strong alkali and strong acid for cleaning, and can cause irreversible damage to the alloy layer of the part. The existing chemical carbon deposition cleaning agent mainly takes an anionic surfactant and a hydrophilic solvent as main materials, but the cleaning effect of the carbon deposition is not thorough, the piston of an anti-freezing agent is easy to block, and some carbon deposition cleaning agents can remove the carbon deposition by soaking for a long time, so that the use of the chemical carbon deposition cleaning agent is limited.
Therefore, the research and development of the carbon deposit cleaning agent with complete cleaning effect, no corrosion and no environmental pollution has very important significance.
Disclosure of Invention
The invention aims to provide a carbon deposition cleaning agent for an aviation engine, which is suitable for various components in the engine, can protect the components of the engine from being corroded, oxidized and discolored, and can clean carbon deposition and pollutants on the components of the engine to ensure a good cleaning effect.
In order to realize the purpose, the invention adopts the technical scheme that: the carbon deposit cleaning agent for the aviation engine comprises the following components in parts by weight: 10-25 parts of an alcohol ether solvent, 5-10 parts of closed dodecyl benzene sulfonic acid, 2-8 parts of a sophorose ester biosurfactant, 2-5 parts of alkenyl succinic anhydride, 2-5 parts of a complexing agent, 2-5 parts of a ternary polycarboxylic acid composition, 1-3 parts of a compound corrosion inhibitor, 1-10 parts of an alkalinity improver, 0.1-1.0 part of a defoaming agent and 50-70 parts of water;
the composite corrosion inhibitor is prepared by compounding a class I corrosion inhibitor, a class II corrosion inhibitor and a class III corrosion inhibitor according to the weight ratio of 1:1: 1;
wherein the I-type corrosion inhibitor is at least one of triazole, benzotriazole, methyl benzotriazole, 2-mercaptobenzothiazole, 2-hydroxybenzothiazole, 5-phenyltetrazole, 2-methylbenzothiazole, 2-phenylimidazoline and alkyl imidazoline; the II-type corrosion inhibitor is at least one of sodium molybdate, sodium metasilicate, sodium tetraborate, sodium tungstate, ammonium molybdate, sodium metavanadate and ammonium metavanadate; the III corrosion inhibitor is at least one of glucose, sucrose, mannitol, sorbitol, gluconolactone, sodium benzoate and hexamethylenetetramine.
In the technical scheme, the alcohol ether solubilizer has good dissolving effect on organic matters with polarity, penetrates into carbon deposition through mechanisms such as permeation, complexation and expansion, and is broken, dispersed and coked; the sophorose ester biosurfactant and the enclosed dodecyl benzene sulfonic acid have synergistic effect, so that the surface tension of the cleaning agent can be reduced, the infiltration of the cleaning agent on asphaltene and tar in the carbon deposit is enhanced, the surface of the carbon deposit is wetted, spontaneously soaked and spread, and the carbon deposit falls off from the surface of an engine; the alkalinity improver can react with hydroxy acid in the carbon deposit to form salt, so that the salt is dispersed and dissolved in the cleaning solution, and the complexing agent molecules have strong coordination to complex and dissolve metal ions such as calcium, magnesium, iron and the like in the carbon deposit ash; the carbon deposit after cleaning can be emulsified by the surfactant and uniformly dispersed in the washing liquid, and can not be attached to the surface of the workpiece again to cause secondary contamination. According to the invention, a plurality of corrosion inhibitors are compounded, so that a good synergistic effect is achieved, the interface action of the corrosion inhibitors can be mutually promoted to form a multi-element protective film, and thus a plurality of metals related to an engine component are considered, and a synergistic protection effect is generated; metals such as iron, copper, aluminum, magnesium, zinc and alloys thereof do not corrode, and the coating on the surfaces of the three-way catalyst and the engine of the precious metal such as platinum, palladium, rhodium and the like is not damaged. Therefore, the carbon deposition cleaning agent can be suitable for components made of different materials of the engine, and can thoroughly clean carbon deposition on the surface and pollutants on the basis of protecting the engine components from being damaged.
Further, the defoaming agent is emulsified silicone oil, polyether graft modified organosilicon, synthetic polyether defoaming agent or C12-C22 higher alcohol; the water is river water, well water, tap water, deionized water or purified water.
The alcohol ether solvent is prepared by compounding at least two of ethylene glycol, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol monobutyl ether, ethylene glycol phenyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, 1, 2-propylene glycol, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, tripropylene glycol butyl ether, propylene glycol phenyl ether and benzyl alcohol in a weight ratio of 1: 1.
Furthermore, the enclosed dodecylbenzene sulfonic acid is one of dodecylbenzene sulfonic acid and monoethanolamine, triethanolamine, diethanolamine, monoethanolamine, dimethylethanolamine, diethylethanolamine, dibutylamine, dihexylethanolamine, tri-n-butylamine, isobutanolamine, isopropanolamine, triethanolamine or diethanol monoisopropanolamine, and the dodecylbenzene sulfonic acid reacts with the alkanolamine to generate the sulfonic acid soap when the temperature is heated to 30-60 ℃. The sulfonic acid soap not only maintains the good dirt-removing and descaling capability of the anionic surfactant, but also has excellent antirust effect.
Further, the sophorose ester surfactant is one of acid-type sophorose ester or lactone-type sophorose ester or a mixture of the acid-type sophorose ester and the lactone-type sophorose ester; the sophorose ester is a biological surfactant, the molecular structure of which is composed of a hydrophilic part and a hydrophobic part, the hydrophilic part is formed by combining two molecules of glucose with beta-1, 2 glycosidic bonds, the hydrophobic part is saturated or unsaturated long-chain hydroxy fatty acid, and the common hydrophobic group is palmitic acid, stearic acid, oleic acid, linoleic acid, lauric acid and the like. Most of the sophorose ester surfactants contain 16-18 long-chain fatty acids, which are uniformly arranged into layers in the solution, so that the surface tension and the critical micelle concentration can be remarkably reduced, the surface tension of water can be reduced to 32mN/m by 40-100mg/L sophorose ester aqueous solution, the dust and carbon deposition are less likely to be attached to the surface of a base material, and the cleaning is cleaner and more thorough; secondly, the sophorose ester has good thermal stability, the emulsifying activity and the surface tension of the sophorose ester are basically unchanged in water bath at 90 ℃ for 1h, and the acid-base tolerance and the high-salt tolerance are excellent; and the sophorose ester has good biocompatibility and environmental friendliness, has a good inhibition effect on mold and microorganisms in the air, and can effectively prevent the breeding of the microorganisms.
The alkenyl succinic anhydride is at least one of octenyl succinic anhydride, nonenyl succinic anhydride, decenyl succinic anhydride, undecenyl succinic anhydride, dodecenyl succinic anhydride, tetradecenyl succinic anhydride, hexadecenyl succinic anhydride, octadecenyl succinic anhydride and eicosenyl succinic anhydride. The substances of the acid anhydrides can change the surface tension of the solution, have super strong wettability and spreadability, increase the compatibility of the cleaning agent solution and hydrophobic molecules of the carbon deposition layer and improve the carbon deposition removal effect; and is also a corrosion inhibitor for metals such as aluminum, magnesium and the like.
Further, the complexing agent is at least one of potassium tartrate, sodium tartrate, potassium sodium tartrate, citric acid, ammonium citrate, sodium citrate, potassium citrate, ethylenediamine tetraacetic acid, disodium ethylenediamine tetraacetic acid, tetrasodium ethylenediamine tetraacetic acid, gluconic acid, sodium gluconate, succinic acid, glycine, glycolic acid, acetic acid, sodium maleate, sodium malate, sodium acetate, sodium diethylenetriamine pentaacetate, hydroxyethylidene diphosphonate sodium salt (HEDP. Na), aminotrimethylene phosphonic acid sodium salt (ATMP. Na), diethylenetriamine pentamethylene phosphonic acid sodium salt (DTPMPS), and ethylenediamine tetraacetic acid sodium salt (EDTMPS).
The complexing agent used in the technical scheme enables the product to have excellent hard water resistance and can meet the use requirements of different water qualities in different regions.
Further, the ternary polycarboxylic acid composition is a product obtained by reacting ternary polycarboxylic acid with sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, tetraethylammonium hydroxide or ammonia water; the salt of the tri-polycarboxylic acid is used as a surfactant in the cleaning agent, so that the cleaning capacity is improved; in addition, because the structure of the anti-rust oil-proof oil-.
Further, the alkalinity enhancer is at least one of potassium carbonate, sodium metasilicate pentahydrate, sodium metasilicate nonahydrate, instant sodium metasilicate, sodium tripolyphosphate, sodium pyrophosphate, sodium orthophosphate, potassium pyrophosphate, potassium orthophosphate, sodium metaphosphate, sodium tetraborate or potassium tetraborate. The alkalinity enhancers are weak alkaline aids, can increase alkalinity to make the pH value of the cleaning solution within 9-11, have good cleaning effect, and can avoid metal corrosion or coating damage of engine components caused by adding strong alkaline substances. The preferred sodium metasilicate or instant sodium silicate has moderate alkalinity, good washing assisting capability, corrosion inhibition on metal aluminum and metal zinc, small environmental pollution and no water eutrophication compared with phosphate.
The second purpose of the invention is to provide a preparation method of the carbon deposition cleaning agent for the aviation engine, the carbon deposition cleaning agent with good carbon deposition and dirt removing effects can be prepared by using the preparation method, and the carbon deposition cleaning agent can effectively prevent engine components from being oxidized, rusted and corroded when in use.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a preparation method of a carbon deposition cleaning agent for an aviation engine comprises the following steps:
1) dissolving an alcohol ether solvent, closed dodecyl benzene sulfonic acid, a sophorose ester biosurfactant, alkenyl succinic anhydride, a complexing agent, a ternary polycarboxylic acid composition and a compound corrosion inhibitor in water one by one;
2) adding an alkalinity improver into the solution in the step 1), and adjusting the pH value of the solution to 9-11;
3) adding a defoaming agent into the solution obtained in the step 2), and uniformly mixing to obtain the carbon deposition cleaning agent for the aviation engine.
The third purpose of the invention is to provide a using method of the carbon deposit cleaning agent for the aviation engine.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the application method of the carbon deposit cleaning agent for the aviation engine comprises the steps of diluting the carbon deposit cleaning agent for the aviation engine with water according to the proportion of 20-50%, heating to 60-70 ℃, and then soaking an engine workpiece for 10-30min, wherein the soaking time can be prolonged for 10-30min if the carbon deposit layer on the surface is thick.
The invention has the advantages and positive effects that:
1. the carbon deposit cleaning agent is suitable for components made of different materials in an engine, when the cleaning agent is used, the carbon deposit can be instantly wetted, spread and infiltrated on the surface of the carbon deposit so as to peel off the carbon deposit from a substrate, and the cleaned carbon deposit and other pollutants can be emulsified by the cleaning agent and uniformly dispersed in a cleaning solution, so that the carbon deposit cleaning agent cannot be attached to the surface of a workpiece again to cause secondary pollution, and the aim of thoroughly removing the carbon deposit is fulfilled. The compound corrosion inhibitor adopted in the invention has no corrosion to metals such as iron, copper, magnesium, aluminum, zinc and the like and alloys thereof, has no damage to a three-way catalytic converter of noble metals such as platinum, palladium, rhodium and the like and a coating on the surface of an engine, can protect engine components from corrosion, oxidation and discoloration when in use, can keep the components intact, can thoroughly remove carbon deposition on the surface, and has remarkable effect.
2. The alkalinity improver in the carbon deposition cleaning agent adopts alkalescent auxiliaries such as potassium carbonate, sodium carbonate, anhydrous sodium metasilicate and the like, so that the pH of the cleaning solution can be kept within 9-11, a good cleaning effect is achieved, and metal corrosion or coating damage of engine components caused by adding of strong alkaline substances can be avoided. Especially, the sodium metasilicate and the instant sodium silicate have moderate alkalinity, good washing assisting capability, corrosion inhibition on aluminum and zinc, small environmental pollution and no water eutrophication compared with phosphate.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Example 1:
the components are as follows: 16 parts of alcohol ether solvent, 8 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 2 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 4 parts of alkalinity improver, 0.3 part of defoaming agent and 61.7 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 10 parts of diethylene glycol monoethyl ether, 3 parts of ethylene glycol phenyl ether, and 3 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is acid sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium citrate; the ternary polycarboxylic acid composition is ternary polycarboxylate obtained by neutralization reaction of ternary polycarboxylic acid and sodium carbonate; the compound corrosion inhibitor is prepared by compounding 0.5 part of benzotriazole, 0.5 part of ammonium molybdate and 1 part of sorbitol; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method comprises the following steps:
1) dissolving an alcohol ether solvent, closed dodecyl benzene sulfonic acid, a sophorose ester biosurfactant, alkenyl succinic anhydride, a complexing agent, a ternary polycarboxylic acid composition and a compound corrosion inhibitor in water one by one;
2) adding an alkalinity improver into the solution obtained in the step 1), and adjusting the pH value of the solution to 9;
3) adding a defoaming agent into the solution obtained in the step 2), and uniformly mixing to obtain the carbon deposition cleaning agent for the aviation engine.
When the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is used, the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is diluted by adding water according to the proportion of 20%, the temperature is heated to 60 ℃, then the engine workpiece is soaked for 10min, and the soaking time can be prolonged for 10min if the carbon deposit layer on the surface is thick.
Example 2:
the components are as follows: 17 parts of alcohol ether solvent, 6 parts of closed dodecyl benzene sulfonic acid, 3 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 5 parts of alkalinity improver, 0.5 part of defoaming agent and 59.5 parts of water.
In this embodiment, the alcohol ether solvent specifically consists of 8 parts of diethylene glycol mono-n-propylene, 4 parts of propylene glycol phenyl ether and 5 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is glycine; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 0.5 part of methylbenzotriazole, 0.5 part of sodium tungstate and 1 part of glucolactone; the alkalinity improver is potassium tetraborate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method comprises the following steps:
referring to example 1, unlike example 1, in step 2, the pH of the solution was adjusted to 10.
When the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is used, the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is diluted by adding water according to the proportion of 50%, the temperature is heated to 70 ℃, then the engine workpiece is soaked for 30min, and the soaking time can be prolonged for 30min if the carbon deposit layer on the surface is thick.
Example 3:
the components are as follows: 15 parts of alcohol ether solvent, 7 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2.5 parts of compound corrosion inhibitor, 5 parts of alkalinity improver, 0.8 part of defoaming agent and 60.7 parts of water.
In this embodiment, the alcohol ether solvent specifically consists of 10 parts of dipropylene glycol methyl ether and 5 parts of propylene glycol phenyl ether; the closed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid triethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and triethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium diethylenetriamine pentaacetate; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 1 part of 5-phenyl tetrazole, 0.5 part of sodium tungstate and 1 part of glucose; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is a synthetic polyether defoaming agent, and the water adopts deionized water.
The preparation method comprises the following steps:
referring to example 1, the difference from example 1 is that the pH of the solution is adjusted to 11 in step 2).
When the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is used, the carbon deposit cleaning agent for the aviation engine prepared by the embodiment is diluted by adding water according to the proportion of 35%, the temperature is heated to 65 ℃, then the engine workpiece is soaked for 20min, and the soaking time can be prolonged for 20min if the carbon deposit layer on the surface is thick.
Example 4:
the components are as follows: 10 parts of alcohol ether solvent, 5 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 2 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 1.5 parts of compound corrosion inhibitor, 10 parts of alkalinity improver, 0.1 part of defoaming agent and 67.4 parts of water.
In this embodiment, the alcohol ether solvent is 10 parts of diethylene glycol monoethyl ether; the closed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid triethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and triethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium diethylenetriamine pentaacetate; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 0.5 part of benzotriazole, 0.5 part of sodium tungstate and 0.5 part of glucose; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is a synthetic polyether defoaming agent, and tap water is used as water.
The preparation method comprises the following steps:
the same procedure was followed as in example 1.
Example 5:
the components are as follows: 14 parts of alcohol ether solvent, 10 parts of closed dodecyl benzene sulfonic acid, 8 parts of sophorose ester biosurfactant, 5 parts of alkenyl succinic anhydride, 5 parts of complexing agent, 5 parts of ternary polycarboxylic acid composition, 1 part of compound corrosion inhibitor, 1 part of alkalinity improver, 1 part of defoaming agent and 50 parts of water.
In this embodiment, the alcohol ether solvent specifically consists of 10 parts of dipropylene glycol methyl ether and 4 parts of propylene glycol phenyl ether; the closed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid triethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and triethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium diethylenetriamine pentaacetate; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 0.4 part of 5-phenyl tetrazole, 0.2 part of sodium tungstate and 0.4 part of glucose; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is a synthetic polyether defoaming agent, and tap water is used as water.
The preparation method comprises the following steps:
the same procedure was followed as in example 2.
Example 6:
the components are as follows: 25 parts of alcohol ether solvent, 6 parts of closed dodecyl benzene sulfonic acid, 5 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 3 parts of complexing agent, 3 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 2 parts of alkalinity improver, 0.4 part of defoaming agent and 50.6 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 10 parts of diethanol-mono-n-propyl ether, 10 parts of propylene glycol phenyl ether, and 5 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is acid sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium diethylenetriamine pentaacetate; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 1 part of methylbenzotriazole, 0.5 part of sodium tungstate and 0.5 part of glucolactone; the alkalinity improver is instant sodium silicate; the defoaming agent is a synthetic polyether defoaming agent, and tap water is used as water.
The preparation method comprises the following steps:
the same procedure was followed as in example 1.
Example 7:
the components are as follows: 12 parts of an alcohol ether solvent, 5 parts of closed dodecyl benzene sulfonic acid, 3 parts of a sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of a complexing agent, 2 parts of a ternary polycarboxylic acid composition, 1 part of a compound corrosion inhibitor, 1 part of an alkalinity improver, 1 part of a defoaming agent and 70 parts of water.
In this embodiment, the alcohol ether solvent specifically consists of 10 parts of dipropylene glycol methyl ether and 2 parts of propylene glycol phenyl ether; the closed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid triethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and triethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is tetradecenyl succinic anhydride; the complexing agent is sodium maleate; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 0.4 part of 5-phenyl tetrazole, 0.2 part of sodium tungstate and 0.4 part of glucose; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is a synthetic polyether defoaming agent, and tap water is used as water.
The preparation method comprises the following steps:
the same procedure was followed as in example 1.
Comparative example 1:
a water-based weak-alkali carbon deposition cleaning agent in the market is selected as a comparative example 1, and specifically, the YR-221 metal carbon deposition cleaning agent is selected.
Comparative example 2:
a solvent type carbon deposition cleaning agent in the market is selected as a comparative example 2, and specifically is a Gutewei carbon deposition cleaning agent.
Comparative example 3:
the components are as follows: 16 parts of alcohol ether solvent, 8 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 2 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of I-type corrosion inhibitor, 4 parts of alkalinity improver, 0.3 part of defoaming agent and 61.7 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 10 parts of diethylene glycol monoethyl ether, 3 parts of ethylene glycol phenyl ether, and 3 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is acid sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium citrate; the ternary polycarboxylic acid composition is ternary polycarboxylate obtained by neutralization reaction of ternary polycarboxylic acid and sodium carbonate; the I-type corrosion inhibitor is 2 parts of benzotriazole; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water
The preparation method is the same as that of example 1.
Comparative example 3 compared to example 1, the corrosion inhibitor used was a group I corrosion inhibitor alone.
Comparative example 4:
the components are as follows: 16 parts of alcohol ether solvent, 8 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 2 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of II-type corrosion inhibitor, 4 parts of alkalinity improver, 0.3 part of defoaming agent and 61.7 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 10 parts of diethylene glycol monoethyl ether, 3 parts of ethylene glycol phenyl ether, and 3 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is acid sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium citrate; the ternary polycarboxylic acid composition is ternary polycarboxylate obtained by neutralization reaction of ternary polycarboxylic acid and sodium carbonate; the II type corrosion inhibitor is 0.5 part of ammonium molybdate; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method is the same as that of example 1.
Comparative example 4 compared to example 1, the corrosion inhibitor used was a group II corrosion inhibitor alone.
Comparative example 5:
the components are as follows: 16 parts of alcohol ether solvent, 8 parts of closed dodecyl benzene sulfonic acid, 2 parts of sophorose ester biosurfactant, 2 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of II-type corrosion inhibitor, 4 parts of alkalinity improver, 0.3 part of defoaming agent and 61.7 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 10 parts of diethylene glycol monoethyl ether, 3 parts of ethylene glycol phenyl ether, and 3 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is acid sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is sodium citrate; the ternary polycarboxylic acid composition is ternary polycarboxylate obtained by neutralization reaction of ternary polycarboxylic acid and sodium carbonate; the III corrosion inhibitor is 2 parts of sorbitol; the alkalinity improver is sodium metasilicate pentahydrate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method is the same as that of example 1.
Comparative example 5 compared to example 1, the corrosion inhibitor used was a group III corrosion inhibitor alone.
Comparative example 6:
the components are as follows: 17 parts of alcohol ether solvent, 6 parts of closed dodecyl benzene sulfonic acid, 3 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 5 parts of alkalinity improver, 0.5 part of defoaming agent and 59.5 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 8 parts of diethylene glycol mono-n-propyl ether, 4 parts of propylene glycol phenyl ether, and 5 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is glycine; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 1 part of methylbenzotriazole and 1 part of sodium tungstate; the alkalinity improver is potassium tetraborate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method is the same as that of example 1.
The comparative example 6 is different from the example 1 in that the compound corrosion inhibitor is prepared by compounding the I-type corrosion inhibitor and the II-type corrosion inhibitor.
Comparative example 7:
the components are as follows: 17 parts of alcohol ether solvent, 6 parts of closed dodecyl benzene sulfonic acid, 3 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 5 parts of alkalinity improver, 0.5 part of defoaming agent and 59.5 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 8 parts of diethylene glycol mono-n-propyl ether, 4 parts of propylene glycol phenyl ether, and 5 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is glycine; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 1 part of sodium tungstate and 1 part of glucolactone; the alkalinity improver is potassium tetraborate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method is the same as that of example 1.
The comparative example 7 is different from the example 1 in that the compound corrosion inhibitor is prepared by compounding a II-type corrosion inhibitor and a III-type corrosion inhibitor.
Comparative example 8:
the components are as follows: 17 parts of alcohol ether solvent, 6 parts of closed dodecyl benzene sulfonic acid, 3 parts of sophorose ester biosurfactant, 3 parts of alkenyl succinic anhydride, 2 parts of complexing agent, 2 parts of ternary polycarboxylic acid composition, 2 parts of compound corrosion inhibitor, 5 parts of alkalinity improver, 0.5 part of defoaming agent and 59.5 parts of water.
In this embodiment, the alcohol ether solvent specifically comprises 8 parts of diethylene glycol mono-n-propyl ether, 4 parts of propylene glycol phenyl ether, and 5 parts of benzyl alcohol; the enclosed dodecylbenzene sulfonic acid is specifically dodecylbenzene sulfonic acid diethanolamine salt generated by the reaction of dodecylbenzene sulfonic acid and diethanolamine; the sophorose ester biosurfactant is mixed sophorose ester; alkenyl succinic anhydride is dodecenyl succinic anhydride; the complexing agent is glycine; the ternary polycarboxylic acid composition is ternary polycarboxylate generated by the neutralization reaction of ternary polycarboxylic acid and ammonia water; the compound corrosion inhibitor is prepared by compounding 1 part of methylbenzotriazole and 1 part of glucolactone; the alkalinity improver is potassium tetraborate; the defoaming agent is emulsified silicone oil, and the water adopts deionized water.
The preparation method is the same as that of example 1.
The difference between the comparative example 8 and the comparative example 1 is that the compound corrosion inhibitor is prepared by compounding the I-type corrosion inhibitor and the III-type corrosion inhibitor.
Experimental example 1: corrosion rate test
After cleaning the metal, polishing the metal by using sand paper to remove an oxide layer on the surface, and degreasing the metal by using absolute ethyl alcohol after cleaning the metal; baking at 56 deg.C for 1 hr until the temperature is stabilized to room temperatureRear load bearing, denoted m0. Then soaking the carbon deposition cleaning agent in the embodiment and the comparative example for 72 hours continuously, taking out the metal sheet, removing the corrosive on the surface of the metal sheet, cleaning and drying the metal sheet, and recording the load as mt. Then, the corrosion rate of the metal sheet was calculated according to the calculation formula to obtain the experimental data shown in table 1.
The calculation formula of the corrosion rate (R) of the metal sheet is as follows: r8760 x 104*(m0-mt)/(S*t*d)
Wherein: r-corrosion rate, mm/a; 104- -unit conversion value
m0-weight of metal sheet before experiment, g; m ist-post-test sheet metal weight, g;
s- -total surface area of Metal sheet, cm2(ii) a t-experimental time, h;
d- -density of metallic material, kg/m3(ii) a 8760- -hours in a year.
TABLE 1 examples and corrosion rate tables for sheet metals after proportional soaking
Wherein "-" is substantially no corrosion, "+" is light corrosion, "+ + +" is medium corrosion, and "+ + + + +" is heavy corrosion.
As can be seen from the experimental data in Table 1, the carbon deposition cleaning agent of the present invention has substantially no corrosion to carbon steel, stainless steel and brass when in use; has slight corrosion effect on 6 series aluminum; therefore, the carbon deposition cleaning agent is suitable for different metal products and can be suitable for cleaning engines of different models and materials.
Comparing the examples with comparative examples 1 and 2, the corrosiveness of the soot cleaning agent of the present invention is much lower than in comparative examples 1 and 2 compared to the prior art soot cleaning agent. Therefore, the performance of the carbon deposition cleaning agent is superior to that of the carbon deposition cleaning agent used in the prior art.
Comparing example 1 with comparative examples 3 to 8, it can be seen that the group I corrosion inhibitor, the group II corrosion inhibitor and the group III corrosion inhibitor used in the examples of the present invention are as follows (0.5-1):0.5: (0.5-1) the carbon deposition cleaning agent prepared by compounding the corrosion inhibitors in proportion can obtain better anti-corrosion effect during cleaning, and the effect is greatly improved compared with the effect of singly using one corrosion inhibitor or two compounded corrosion inhibitors. After the three corrosion inhibitors are compounded, the three corrosion inhibitors have a good synergistic effect, and can mutually promote the formation of a multi-element protective film on an interface, so that the metal surface is effectively prevented from being corroded, and the corrosion inhibitors are suitable for engine components made of different materials. Therefore, the carbon deposition cleaning agent is suitable for components prepared from different materials, has a good protection effect, can protect the components from corrosion, oxidation and discoloration, and keeps good performance of the components.
Experimental example 2: detergency test
The embodiment of the invention is used for soaking and cleaning metal sheets with similar carbon deposition degree in proportion, wherein the carbon deposition cleaning agent is diluted by adding water according to the proportion of 30 percent, heated to 60 ℃, soaked for 30min and then washed, and the removal effect of carbon deposition and oil stain on the surface is observed: experimental data as shown in table 2 were obtained.
TABLE 2 cleaning effect data sheet
The experimental data in table 2 show that the carbon deposition cleaning agent disclosed by the invention has a cleaning effect of more than 90% on metal sheets of different materials, and the cleaning effect is excellent and far higher than that of a water-based carbon deposition cleaning agent and an organic solvent type cleaning agent in the prior art. Therefore, the carbon deposit cleaning agent can clean carbon deposits and pollutants on the engine component, and ensures a good decontamination effect.
The data comparison shows that the carbon deposition cleaning agent is suitable for various components in the engine, can protect the components of the engine from corrosion, oxidation and discoloration, and can clean carbon deposition and pollutants on the components of the engine at the same time, thereby ensuring good cleaning effect.
Although the embodiments of the present invention have been described in detail, the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The carbon deposit cleaning agent for the aviation engine is characterized by comprising the following components in parts by weight: 10-25 parts of an alcohol ether solvent, 5-10 parts of closed dodecyl benzene sulfonic acid, 2-8 parts of a sophorose ester biosurfactant, 2-5 parts of alkenyl succinic anhydride, 2-5 parts of a complexing agent, 2-5 parts of a ternary polycarboxylic acid composition, 1-3 parts of a compound corrosion inhibitor, 1-10 parts of an alkalinity improver, 0.1-1.0 part of a defoaming agent and 50-70 parts of water; the total of the components is 100 parts;
the composite corrosion inhibitor is prepared by compounding a class I corrosion inhibitor, a class II corrosion inhibitor and a class III corrosion inhibitor according to the weight ratio of (0.5-1) to (0.5-1);
wherein the I-type corrosion inhibitor is at least one of triazole, benzotriazole, methyl benzotriazole, 2-mercaptobenzothiazole, 2-hydroxybenzothiazole, 5-phenyltetrazole, 2-methylbenzothiazole, 2-phenylimidazoline and alkyl imidazoline; the II-type corrosion inhibitor is at least one of sodium molybdate, sodium metasilicate, sodium tetraborate, sodium tungstate, ammonium molybdate, sodium metavanadate and ammonium metavanadate; the III corrosion inhibitor is at least one of glucose, sucrose, mannitol, sorbitol, gluconolactone, sodium benzoate and hexamethylenetetramine.
2. The carbon deposition cleaning agent for the aviation engine as claimed in claim 1, wherein the defoaming agent is silicone emulsion, polyether graft modified silicone, synthetic polyether defoaming agent or C12-C22 higher alcohol; the water is river water, well water, tap water, deionized water or purified water.
3. The carbon deposit cleaner for the aviation engine as claimed in claim 1, wherein the alcohol ether solvent is at least two selected from the group consisting of ethylene glycol, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol monobutyl ether, ethylene glycol phenyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, 1, 2-propylene glycol, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, tripropylene glycol butyl ether, propylene glycol phenyl ether and benzyl alcohol.
4. The detergent for carbon deposition on an aircraft engine as claimed in claim 1, wherein the blocked dodecylbenzene sulfonic acid is one of dodecylbenzene sulfonic acid and monoethanolamine, triethanolamine, diethanolamine, monoethanolamine, dimethylethanolamine, diethylethanolamine, dibutylamine, dihexylethanolamine, tri-n-butylamine, isobutanolamine, isopropanolamine, triethanolamine or diethanolisopropanolamine, and when heated to 30-60 ℃, the dodecylbenzene sulfonic acid reacts with the alkanolamine to form a sulfonic acid soap.
5. The carbon deposit cleaning agent for the aeroengine as claimed in claim 1, wherein the sophorose ester surfactant is one or a mixture of acid sophorose ester or lactone sophorose ester;
the alkenyl succinic anhydride is at least one of octenyl succinic anhydride, nonenyl succinic anhydride, decenyl succinic anhydride, undecenyl succinic anhydride, dodecenyl succinic anhydride, tetradecenyl succinic anhydride, hexadecenyl succinic anhydride, octadecenyl succinic anhydride and eicosenyl succinic anhydride.
6. The detergent for carbon deposition on an aircraft engine according to claim 1, wherein the complexing agent is at least one of potassium tartrate, sodium potassium tartrate, citric acid, ammonium citrate, sodium citrate, potassium citrate, ethylenediaminetetraacetic acid, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, gluconic acid, sodium gluconate, succinic acid, glycine, glycolic acid, acetic acid, sodium maleate, sodium malate, sodium acetate, sodium diethylenetriaminepentaacetate, sodium hydroxyethylidenediphosphonic acid, sodium aminotrimethylenephosphonate, sodium diethylenetriaminepentamethylenephosphonate, and sodium ethylenediaminetetraacetate.
7. The detergent composition for cleaning carbon deposit on aeroengine as claimed in claim 1, wherein the said composition is the product of reaction of ternary polycarboxylic acid with sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, tetramethyl ammonium hydroxide, tetraethyl ammonium hydroxide or ammonia water;
the alkalinity enhancer is at least one of potassium carbonate, sodium metasilicate pentahydrate, sodium metasilicate nonahydrate, instant sodium silicate, sodium tripolyphosphate, sodium pyrophosphate, sodium orthophosphate, potassium pyrophosphate, potassium orthophosphate, sodium metaphosphate, sodium tetraborate or potassium tetraborate.
8. A preparation method of a carbon deposition cleaning agent for an aviation engine is characterized by comprising the following steps:
1) dissolving an alcohol ether solvent, closed dodecyl benzene sulfonic acid, a sophorose ester biosurfactant, alkenyl succinic anhydride, a complexing agent, a ternary polycarboxylic acid composition and a compound corrosion inhibitor in water one by one;
2) adding an alkalinity improver into the solution in the step 1), and adjusting the pH value of the solution to 9-11;
3) adding a defoaming agent into the solution obtained in the step 2), and uniformly mixing to obtain the carbon deposition cleaning agent for the aviation engine.
9. A use method of the carbon deposit cleaning agent for the aviation engine is characterized in that the carbon deposit cleaning agent for the aviation engine, which is disclosed by any one of claims 1 to 7, is diluted by water according to a proportion of 20-50%, is heated to 60-70 ℃, then an engine workpiece is soaked for 10-30min, and the soaking time can be prolonged for 10-30min if the carbon deposit layer on the surface is thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561858.7A CN112680289A (en) | 2020-12-25 | 2020-12-25 | Carbon deposit cleaning agent for aviation engine and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561858.7A CN112680289A (en) | 2020-12-25 | 2020-12-25 | Carbon deposit cleaning agent for aviation engine and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112680289A true CN112680289A (en) | 2021-04-20 |
Family
ID=75451636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561858.7A Pending CN112680289A (en) | 2020-12-25 | 2020-12-25 | Carbon deposit cleaning agent for aviation engine and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112680289A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430071A (en) * | 2021-05-27 | 2021-09-24 | 厦门筚路新材料科技有限公司 | Carbon deposit cleaning composition for engine of fuel engine and use method |
| CN113502183A (en) * | 2021-05-28 | 2021-10-15 | 江西车仆实业有限公司 | Composition for efficiently cleaning power steering system and preparation method thereof |
| CN114989900A (en) * | 2022-02-22 | 2022-09-02 | 伊利诺斯工具制品有限公司 | Carbon deposit cleaning composition and application thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363739A (en) * | 2010-12-14 | 2012-02-29 | 深圳车仆汽车用品发展有限公司 | Carbon deposit scavenging agent for combustion chamber and spark plug, and preparation method of the same |
| CN102586033A (en) * | 2011-01-13 | 2012-07-18 | 郑涵 | Biological remediation type water system oil stain cleaning agent and preparation method thereof |
| CN106242085A (en) * | 2016-08-25 | 2016-12-21 | 山东天庆科技发展有限公司 | A kind of circularly-cooling sea water non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN106318591A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Defoaming agent for water-glycol fire-retardant hydraulic fluid |
| CN107828546A (en) * | 2017-11-01 | 2018-03-23 | 安徽安凯汽车股份有限公司 | A kind of environment-friendly type bus engine cleaning agent and its preparation technology |
| CN108251222A (en) * | 2018-02-01 | 2018-07-06 | 徐志杰 | A kind of automobile engine carbon deposit cleaning agent and preparation method thereof |
| CN108587810A (en) * | 2018-04-13 | 2018-09-28 | 华阳新兴科技（天津）集团有限公司 | A kind of aircraft external surface cleaning agent and preparation method thereof |
| CN109234052A (en) * | 2018-09-18 | 2019-01-18 | 华阳新兴科技（天津）集团有限公司 | A kind of environment-friendly highly efficient aircraft maintenance water base dry cleaning agent and preparation method thereof |
| CN110819992A (en) * | 2019-11-27 | 2020-02-21 | 济南鼎隆化工科技有限公司 | Environment-friendly organic metal corrosion inhibitor and preparation method and application thereof |
| CN111235580A (en) * | 2019-12-25 | 2020-06-05 | 乌鲁木齐市科发展精细化工有限公司 | Composite closed circulating water phosphorus-free corrosion inhibitor and preparation method thereof |
| CN111607464A (en) * | 2020-05-26 | 2020-09-01 | 广州市标榜汽车用品实业有限公司 | Concentrated foam vehicle washing liquid and preparation method thereof |
-
2020
- 2020-12-25 CN CN202011561858.7A patent/CN112680289A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363739A (en) * | 2010-12-14 | 2012-02-29 | 深圳车仆汽车用品发展有限公司 | Carbon deposit scavenging agent for combustion chamber and spark plug, and preparation method of the same |
| CN102586033A (en) * | 2011-01-13 | 2012-07-18 | 郑涵 | Biological remediation type water system oil stain cleaning agent and preparation method thereof |
| CN106318591A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Defoaming agent for water-glycol fire-retardant hydraulic fluid |
| CN106242085A (en) * | 2016-08-25 | 2016-12-21 | 山东天庆科技发展有限公司 | A kind of circularly-cooling sea water non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN107828546A (en) * | 2017-11-01 | 2018-03-23 | 安徽安凯汽车股份有限公司 | A kind of environment-friendly type bus engine cleaning agent and its preparation technology |
| CN108251222A (en) * | 2018-02-01 | 2018-07-06 | 徐志杰 | A kind of automobile engine carbon deposit cleaning agent and preparation method thereof |
| CN108587810A (en) * | 2018-04-13 | 2018-09-28 | 华阳新兴科技（天津）集团有限公司 | A kind of aircraft external surface cleaning agent and preparation method thereof |
| CN109234052A (en) * | 2018-09-18 | 2019-01-18 | 华阳新兴科技（天津）集团有限公司 | A kind of environment-friendly highly efficient aircraft maintenance water base dry cleaning agent and preparation method thereof |
| CN110819992A (en) * | 2019-11-27 | 2020-02-21 | 济南鼎隆化工科技有限公司 | Environment-friendly organic metal corrosion inhibitor and preparation method and application thereof |
| CN111235580A (en) * | 2019-12-25 | 2020-06-05 | 乌鲁木齐市科发展精细化工有限公司 | Composite closed circulating water phosphorus-free corrosion inhibitor and preparation method thereof |
| CN111607464A (en) * | 2020-05-26 | 2020-09-01 | 广州市标榜汽车用品实业有限公司 | Concentrated foam vehicle washing liquid and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430071A (en) * | 2021-05-27 | 2021-09-24 | 厦门筚路新材料科技有限公司 | Carbon deposit cleaning composition for engine of fuel engine and use method |
| CN113502183A (en) * | 2021-05-28 | 2021-10-15 | 江西车仆实业有限公司 | Composition for efficiently cleaning power steering system and preparation method thereof |
| CN114989900A (en) * | 2022-02-22 | 2022-09-02 | 伊利诺斯工具制品有限公司 | Carbon deposit cleaning composition and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112680289A (en) | Carbon deposit cleaning agent for aviation engine and preparation method thereof | |
| US5705472A (en) | Neutral aqueous cleaning composition | |
| CN111705323A (en) | Environment-friendly stainless steel cleaning agent and method for cleaning stainless steel parts | |
| CN109135945A (en) | Environmentally friendly neutrality rust remover | |
| CN101205609B (en) | Composition for magnesium alloy surface activation | |
| CN109456855B (en) | Environment-friendly clean type oil stain cleaning agent and preparation method thereof | |
| CN102766879B (en) | Spray cleaning agent for metal assembly | |
| CN110067001A (en) | A kind of metal cleaner and preparation method thereof | |
| JPH07122152B2 (en) | Acid cleaning solution for aluminum | |
| CN1063236C (en) | Aqueous acid cleaning solution for aluminum metal and method for cleaning the metal | |
| CN115386885A (en) | Preparation method and application of acidic cleaning agent | |
| CN108385117A (en) | A kind of multi-functional alkaline cleaner and its preparation method and application | |
| US7384902B2 (en) | Metal brightener and surface cleaner | |
| CN111410864A (en) | Lipase type water-based ink cleaning agent and preparation method thereof | |
| CN1185762A (en) | Acidic cleaning composition and process for aluminiferous metals | |
| US3349043A (en) | Methods and compositions for controlling oxidation of metal surfaces | |
| CN113430071A (en) | Carbon deposit cleaning composition for engine of fuel engine and use method | |
| JP3514782B2 (en) | Low residue cleaning agent | |
| KR100723214B1 (en) | Degreasing agent for rolling fluid having low saponification value with excellent deforming and cleaning | |
| JP2005514493A (en) | Cleaning agent for the outer surface of the vehicle | |
| JP2005514493A6 (en) | Cleaning agent for the outer surface of the vehicle | |
| US8580724B2 (en) | Metal loss inhibitor formulations and processes | |
| CN112375629A (en) | Novel water-based cleaning agent | |
| CN112941527A (en) | Environment-friendly normal-temperature degreasing agent and preparation method thereof | |
| JP4746474B2 (en) | Alkaline detergent composition for steel sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210420 |