CN113862073A - Long-acting water-based antirust agent - Google Patents
Long-acting water-based antirust agent Download PDFInfo
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- CN113862073A CN113862073A CN202111280370.1A CN202111280370A CN113862073A CN 113862073 A CN113862073 A CN 113862073A CN 202111280370 A CN202111280370 A CN 202111280370A CN 113862073 A CN113862073 A CN 113862073A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention belongs to the field of chemical industry, and particularly relates to a long-acting water-based antirust agent, which comprises the following components in parts by weight: 15% -20% of vegetable fatty acid; 10% -15% of carboxylic acid; 0.5% -1% of metal chelating agent; 5% -6% of organic amine salt; 0.5% -1% of benzotriazole; 3% -5% of a surfactant; the balance of deionized water. The preparation method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 160-180 ℃, reacting for 2-4 h, adding plant fatty acid into the mixture I, stirring for 1-1.5 h, adding a metal chelating agent, benzotriazole and a surfactant into the mixture II, keeping the temperature at 38-40 ℃ for 1-2 h under the stirring condition, and cooling to obtain the water-based antirust agent. The scheme adopts the vegetable fatty acid which is easy to biodegrade, is environment-friendly and has no harm to human body; the organic acid and the vegetable fatty acid can form a compact film on the metal surface, and the rust prevention time can reach 12 months; the use of an oily agent is reduced, the cleaning of a subsequent process is reduced, the safety of the water-based antirust agent can be enhanced, and the inflammable condition of the oily antirust agent is prevented.
Description
Technical Field
The invention belongs to the field of chemical industry, and particularly relates to a long-acting water-based antirust agent.
Background
The water-based antirust agent is an antirust agent which can be diluted by water in the using process, and the main components of the water-based antirust agent are a water-soluble antirust compound, a water-soluble auxiliary agent, a solvent and water.
Because metal parts are easily rusted during production, processing and transportation, a rust inhibitor is usually used to form a thin film on the surface of the metal parts to prevent the metal parts from being rusted due to contact with moisture or other chemical components.
The traditional aqueous rust-proof treatment is to dissolve sodium nitrite, dichromate and the like into water according to certain concentration to form aqueous rust-proof liquid, and is characterized by simple operation and being suitable for short-term rust prevention in metal processing procedures, wherein the rust prevention period is about half a year; the antirust agent has high toxicity to operators, serious environmental pollution and short antirust time, and can not meet the existing production requirements.
Disclosure of Invention
The scheme provides the long-acting water-based antirust agent with long antirust time.
In order to achieve the above object, the present invention provides a long-acting water-based rust inhibitor, comprising: 15 to 20 percent of vegetable fatty acid; 10 to 15 percent of carboxylic acid; 0.5 to 1 percent of metal chelating agent; 5 to 6 percent of organic amine salt; 0.5 to 1 percent of benzotriazole; 3 to 5 percent of surfactant; the balance of deionized water.
The principle of the scheme is as follows: deionized water, organic ammonium salt and carboxylic acid are added into a reaction kettle to react to obtain a mixture, then vegetable fatty acid, a metal chelating agent, benzotriazole and a surfactant are sequentially added into the reaction kettle to prepare an antirust agent, when the antirust agent is used, when the vegetable acid is complexed with metal on the metal surface, a layer of compact monomolecular protective film is easily formed on the metal surface, substances such as oxygen, water and the like can be effectively prevented from entering the metal surface, and the treated metal surface has stronger bonding capability because the formed monomolecular organic film layer and hydroxyl are subjected to chemical reaction.
The scheme has the effects that: the scheme adopts the vegetable fatty acid which is easy to biodegrade, is environment-friendly and has no harm to human body; the organic acid and the vegetable fatty acid can form a compact film on the metal surface, and the rust prevention time can reach 12 months; the use of an oily agent is reduced, the cleaning of a subsequent process is reduced, and meanwhile, the water-based antirust agent can enhance the safety and prevent the oily antirust agent from being inflammable.
Further, the surfactant is a nonionic surfactant or a cationic surfactant.
Further, the nonionic surfactant is alkylphenol polyoxyethylene, high-carbon fatty alcohol polyoxyethylene or fatty acid polyoxyethylene ester.
Further, the organic ammonium salt is triethanolamine borate. Has good antirust performance, and the aqueous solution has no foam, no toxicity and no smell.
The scheme also provides a preparation method of the long-acting water-based antirust agent, which specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 160-180 ℃, and reacting for 2-4 hours to obtain a first mixture;
step two: adding vegetable fatty acid into the first mixture, and stirring for 1-1.5 h to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the mixture II, keeping the temperature for 1-2 h at 38-40 ℃ under the stirring condition, and cooling to obtain the water-based antirust agent.
Further, in the step one, adding the organic ammonium salt, the carboxylic acid and the deionized water into a reaction kettle, heating to 170 ℃, and reacting for 3 hours to obtain a mixture one. The reaction effect of the organic ammonium salt and the carboxylic acid is better.
Further, in the third step, the third mixture is stirred in an electromagnetic stirring mode. The materials are fully mixed and dissolved.
Further, in the third step, the mixture is uniformly stirred in a mechanical stirring mode with an electrically controlled propeller type stirring head, wherein the rotating speed of the stirring head is 8000-10000 rmp/min. The materials are fully mixed and dissolved.
Detailed Description
The following is further detailed by the specific embodiments:
example 1:
a long-acting water-based antirust agent comprises 15-20% of plant fatty acid (in the embodiment, the plant fatty acid is 15%); 10-15% of carboxylic acid (10% of carboxylic acid in this example); 0.5-1% of metal chelating agent (0.5% of metal chelating agent in the embodiment); 5-6% of organic amine salt (5% of organic ammonium salt in the embodiment); 0.5 to 1 percent of benzotriazole (in the embodiment, the content of benzotriazole is not 0.5 percent); 3% -5% of a surfactant (3% of the surfactant in the embodiment); the balance of deionized water.
The surfactant is a nonionic surfactant or a cationic surfactant. The nonionic surfactant is alkylphenol polyoxyethylene, higher fatty alcohol polyoxyethylene or fatty acid polyoxyethylene ester. In this example, polyoxyethylene fatty acid ester is used.
The organic ammonium salt is triethanolamine borate. Has good antirust performance, and the aqueous solution has no foam, no toxicity and no smell.
The embodiment also provides a preparation method of the long-acting water-based antirust agent, which specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 160-180 ℃ (heating to 170 ℃ in the embodiment), and reacting for 2-4 h (reacting for 3h in the embodiment) to obtain a first mixture;
step two: adding the vegetable fatty acid into the first mixture, and stirring for 1 h-1.5 h (stirring for 1h in the embodiment) to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the second mixture, keeping the temperature for 1-2 h (keeping the temperature for 2h in the embodiment) at 38-40 ℃ (40 ℃ in the embodiment) under stirring conditions, and cooling to obtain the water-based antirust agent.
Example 2:
a long-acting water-based rust inhibitor comprising: 15% of vegetable fatty acid, 13% of carboxylic acid, 0.5% -1% of metal chelating agent, 5% of organic amine salt, 0.5% of benzotriazole and 3% of surfactant; the balance of deionized water;
a preparation method of a long-acting water-based antirust agent specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 170 ℃, and reacting for 3 hours to obtain a first mixture;
step two: adding the vegetable fatty acid into the first mixture, and stirring for 1 h-1.5 h (stirring for 1h in the embodiment) to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the second mixture, keeping the temperature for 1-2 h (keeping the temperature for 2h in the embodiment) at 38-40 ℃ under stirring (keeping the temperature for 40 ℃ in the embodiment), and cooling to obtain the water-based antirust agent.
Example 3:
a long-acting water-based rust inhibitor comprising: 15% of vegetable fatty acid, 15% of carboxylic acid, 0.5% -1% of metal chelating agent, 5% of organic amine salt, 0.5% of benzotriazole and 3% of surfactant; the balance of deionized water;
a preparation method of a long-acting water-based antirust agent specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 170 ℃, and reacting for 3 hours to obtain a first mixture;
step two: adding the vegetable fatty acid into the first mixture, and stirring for 1 h-1.5 h (stirring for 1h in the embodiment) to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the second mixture, keeping the temperature for 1-2 h (keeping the temperature for 2h in the embodiment) at 38-40 ℃ under stirring (keeping the temperature for 40 ℃ in the embodiment), and cooling to obtain the water-based antirust agent.
Example 4: the difference between the embodiment and the embodiment 2 is the preparation method of the long-acting water-based antirust agent, which is characterized in that iron powder is added into a mixture II in the step III, then a metal chelating agent, benzotriazole and a surfactant are added, a magnet is used for moving outside a reaction kettle, the iron powder is moved in the reaction kettle, the mixture is stirred by the iron powder, and after the antirust agent is prepared, the iron powder is fished out. However, there is a possibility that a part of the iron powder remains in the rust inhibitor, and the iron powder remaining in the rust inhibitor deposits on the bottom of the solution bottle after the bottle for the rust inhibitor is sealed. The rust inhibitor prepared from vegetable fatty acid, carboxylic acid, a metal chelating agent, organic amine salt and benzotriazole can generate a mixed film of a compact oxide film, a slightly soluble salt protective film and a complex covering film on the surface of a workpiece to protect the workpiece, and iron powder at the bottom of a solution bottle is attracted by a magnet before the rust inhibitor is used, so that the iron powder is dispersed in the rust inhibitor, various substances in the rust inhibitor are fully mixed, and the mixed film is generated on the surface of the workpiece to improve the rust-proof capability of the workpiece; iron powder can exist in a mixed film when the antirust agent forms the mixed film on the surface of a workpiece to form ribs, so that the strength of the film is increased, and the antirust time of the workpiece is prolonged; when the mixed film is damaged, the iron powder in the mixed film is firstly oxidized to protect the workpiece and prolong the rust prevention time of the workpiece.
Comparative example 1:
a long-acting water-based rust inhibitor comprising: 15% of vegetable fatty acid, 9% of carboxylic acid, 0.5% -1% of metal chelating agent, 5% of organic amine salt, 0.5% of benzotriazole and 3% of surfactant; the balance of deionized water;
a preparation method of a long-acting water-based antirust agent specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 170 ℃, and reacting for 3 hours to obtain a first mixture;
step two: adding vegetable fatty acid into the first mixture, and stirring for 1-1.5 h (in the embodiment, stirring for 1h) to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the second mixture, keeping the temperature for 1-2 h (keeping the temperature for 2h in the embodiment) at 38-40 ℃ under stirring (keeping the temperature for 40 ℃ in the embodiment), and cooling to obtain the water-based antirust agent.
Comparative example 2:
a long-acting water-based rust inhibitor comprising: 15% of vegetable fatty acid, 16% of carboxylic acid, 0.5% -1% of metal chelating agent, 5% of organic amine salt, 0.5% of benzotriazole and 3% of surfactant; the balance of deionized water;
a preparation method of a long-acting water-based antirust agent specifically comprises the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 170 ℃, and reacting for 3 hours to obtain a first mixture;
step two: adding vegetable fatty acid into the first mixture, and stirring for 1-1.5 h (in the embodiment, stirring for 1h) to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the second mixture, keeping the temperature for 1-2 h (keeping the temperature for 2h in the embodiment) at 38-40 ℃ under stirring (keeping the temperature for 40 ℃ in the embodiment), and cooling to obtain the water-based antirust agent. The following are specific cases of each of examples 1 to 3 and comparative examples 1 to 2.
The rust inhibitors prepared in examples 1-3 and comparative example-2 were subjected to a salt spray test using the medium-sized salt spray test standard GB/T2423.17-93, the same iron pieces were prepared, the rust inhibitors prepared in examples 1-3 and comparative example-2 were coated on the iron pieces, respectively, and the iron pieces were put into a spray apparatus with 5% salt water and subjected to a test 336H at 35 ℃ to observe the rust-free time of the iron pieces, which is hereinafter referred to as the rust formation of the iron pieces of each of examples and comparative examples for a part of the time period, as shown in Table 2.
| Serial number | 6 days | 7 days | 8 days | 9 days | 10 days | 11 days | 12 days | 13 days |
| Example 1 | Non-rust | Non-rust | Non-rust | Non-rust | Rusty | Rusty | Rusty | Rusty |
| Example 2 | Non-rust | Non-rust | Non-rust | Non-rust | Non-rust | Non-rust | Non-rust | Rusty |
| Example 3 | Non-rust | Non-rust | Non-rust | Non-rust | Rusty | Rusty | Rusty | Rusty |
| Comparative example 1 | Non-rust | Rusty | Rusty | Rusty | Rusty | Rusty | Rusty | Rusty |
| Comparative example 2 | Non-rust | Rusty | Rusty | Rusty | Rusty | Rusty | Rusty | Rusty |
According to the embodiment 1-the embodiment 3, the rust is generated on the 10 th day in the embodiment 1, the rust is generated on the 13 th day in the embodiment 2, the rust is generated on the 10 th day in the embodiment 3, the rust-proof effect of the rust-proof agent in the embodiment 2 is better than that of the embodiment 1 and the embodiment 3, and the mass fraction of the carboxylic acid influences the rust-proof time of the rust-proof agent.
The rust inhibitor of example 2 has a better rust inhibiting effect than that of example 2, comparative example 1 and comparative example 2.
When the antirust agent is used, when the plant acid is complexed with metal on the metal surface, a layer of compact monomolecular protective film is easily formed on the metal surface, substances such as oxygen, water and the like can be effectively prevented from entering the metal surface, and the treated metal surface has stronger bonding capability due to the chemical reaction of the monomolecular organic film layer and hydroxyl. The scheme adopts the vegetable fatty acid which is easy to biodegrade, is environment-friendly and has no harm to human body; the organic acid and the vegetable fatty acid can form a compact film on the metal surface, and the rust prevention time can reach 12 months; the use of an oily agent is reduced, the cleaning of a subsequent process is reduced, and meanwhile, the water-based antirust agent can enhance the safety and prevent the oily antirust agent from being inflammable.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A long-acting water-based rust inhibitor comprising: 15% -20% of vegetable fatty acid; 10% -15% of carboxylic acid; 0.5% -1% of metal chelating agent; 5% -6% of organic amine salt; 0.5% -1% of benzotriazole; 3% -5% of a surfactant; the balance of deionized water.
2. The long-acting water-based rust inhibitor according to claim 1, characterized in that: the surfactant is a nonionic surfactant or a cationic surfactant.
3. The long-acting water-based rust inhibitor according to claim 2, characterized in that: the nonionic surfactant is alkylphenol ethoxylates, high-carbon fatty alcohol polyoxyethylene ether or fatty acid polyoxyethylene ester.
4. The long-acting water-based rust inhibitor according to claim 1, characterized in that: the organic ammonium salt is triethanolamine borate.
5. The preparation method of the long-acting water-based antirust agent according to claim 1, specifically comprising the following steps:
the method comprises the following steps: adding organic ammonium salt, carboxylic acid and deionized water into a reaction kettle, heating to 160-180 ℃, and reacting for 2-4 hours to obtain a first mixture;
step two: adding vegetable fatty acid into the first mixture, and stirring for 1-1.5 hours to obtain a second mixture;
step three: and adding a metal chelating agent, benzotriazole and a surfactant into the mixture II, keeping the temperature for 1-2 h at 38-40 ℃ under the stirring condition, and cooling to obtain the water-based antirust agent.
6. The method for preparing a long-acting water-based antirust agent according to claim 5, wherein the long-acting water-based antirust agent is prepared by the following steps: in the first step, organic ammonium salt, carboxylic acid and deionized water are added into a reaction kettle, heated to 170 ℃ and reacted for 3 hours to obtain a first mixture.
7. The method for preparing a long-acting water-based antirust agent according to claim 5, wherein the long-acting water-based antirust agent is prepared by the following steps: in the third step, the mixture III is stirred in an electromagnetic stirring mode.
8. The method for preparing a long-acting water-based antirust agent according to claim 5, wherein the long-acting water-based antirust agent is prepared by the following steps: and in the third step, the mixture is uniformly stirred in a mechanical stirring mode with an electrically controlled propeller type stirring head, and the rotating speed of the stirring head is 8000-10000 rmp/min.
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Cited By (1)
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| CN115874189A (en) * | 2022-12-10 | 2023-03-31 | 星海音乐学院 | Rust removing and rust preventing cleaning agent for metal musical instruments |
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| CN115874189A (en) * | 2022-12-10 | 2023-03-31 | 星海音乐学院 | Rust removing and rust preventing cleaning agent for metal musical instruments |
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| CN113862073B (en) | 2023-02-14 |
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