CN116288363A - Long-acting water-based antirust agent and preparation method and application thereof - Google Patents

Long-acting water-based antirust agent and preparation method and application thereof Download PDF

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CN116288363A
CN116288363A CN202310276078.5A CN202310276078A CN116288363A CN 116288363 A CN116288363 A CN 116288363A CN 202310276078 A CN202310276078 A CN 202310276078A CN 116288363 A CN116288363 A CN 116288363A
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water
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antirust
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agent
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高晓谋
蒯珊
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Anhui Zhong Tian Petrochemical Co ltd
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Anhui Zhong Tian Petrochemical Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The invention discloses a long-acting water-based antirust agent and a preparation method and application thereof, and belongs to the technical field of metal rust prevention, wherein the long-acting water-based antirust agent comprises the following components: an antirust component, a film-forming component, an additive and water; the rust-proof component is prepared by reacting 1-aminocyclopropane carboxylate and alkaline substances; the film-forming component includes one or more film-forming agents; the film forming agent is prepared by reacting main raw materials with acetic acid and then reacting with alcohol amine; the main raw material is at least one of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, tetrabutyl titanate, tetraethoxysilane, tetrabutyl silicate and tetrabutyl zirconate. The invention can effectively solve the problem of subsequent cleaning by compounding the rust-proof component and the film-forming component and using water as a solvent, improves the rust-proof performance, ductility and film-forming property of the water-based rust-proof agent, reduces the difficulty of manual spraying, and prolongs the rust-proof period of the machined part.

Description

Long-acting water-based antirust agent and preparation method and application thereof
Technical Field
The invention relates to the technical field of metal rust prevention, in particular to a long-acting water-based rust inhibitor, and a preparation method and application thereof.
Background
In modern industrial production processes, metal is the most important structural material, however, corrosion of metal is one of the reasons for disqualification of products in the current metal product process, and great economic loss is caused. The world corrosion organization states that: according to incomplete statistics, the direct economic loss caused by metal corrosion is up to about 7 trillion cents annually, and the loss caused by metal corrosion in China accounts for about 4% of the total national production value.
In the production and storage processes of ferrous metal products, if rust prevention treatment is not carried out, rust phenomenon can occur in a short time, the appearance and performance of finished products are adversely affected, and even finished products are scrapped due to serious corrosion, so that the research of the rust inhibitor plays an important role in protecting the industrial production of the metal products.
The rust inhibitor is divided into an oil agent and a water-based agent, and in the turnover process of the industrial production process of metal products, the post-cleaning process is increased by selecting the rust inhibitor, and the problem can be avoided by selecting the water-based rust inhibitor. However, the existing water-based rust inhibitor has the problems of poor film forming property, poor rust resistance and the like, and needs to be improved.
Disclosure of Invention
The invention aims to provide a long-acting water-based antirust agent, a preparation method and application thereof, so as to solve the problems in the background technology.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the long-acting water-based antirust agent comprises the following components in percentage by mass: 5% -30% of antirust component, 5% -50% of film forming component, 1% -5% of additive and 15% -89% of water;
the antirust component is prepared by reacting 1-aminocyclopropane carboxylate with an alkaline substance;
the film-forming component includes one or more film-forming agents; the film forming agent is prepared by reacting main raw materials with acetic acid and then reacting with alcohol amine; the main raw materials are any one of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, tetrabutyl titanate, ethyl orthosilicate, tetrabutyl silicate and tetrabutyl zirconate.
Preferably, the water-based antirust agent comprises the following components in percentage by mass: 20-30% of antirust component, 8-15% of film-forming component, 1-3% of additive and 52-71% of water.
Preferably, the method for preparing the rust inhibitive component comprises the following steps:
adding 1-aminocyclopropane hydrochloride into hexazine solvent, heating to 110-120 ℃, adding alkaline substance, cooling to 70-90 ℃ and reacting to obtain the antirust component.
Preferably, the alkaline substance is at least one of monoethanolamine, diethanolamine and triethanolamine.
Preferably, the preparation method of the film forming agent comprises the following steps:
and (3) taking distilled water, regulating the pH value of the distilled water to 5-6 by using acetic acid, adding main raw materials to carry out hydrolysis reaction, and then adding alcohol amine to carry out reaction to obtain the film forming agent.
Preferably, the temperature of the hydrolysis reaction is controlled to be 35-55 ℃.
Preferably, the additive includes at least one of a chelating agent, a surfactant, and benzotriazole.
Another object of the embodiment of the present invention is to provide a method for preparing the above water-based rust inhibitor, which includes the following steps:
weighing an antirust component, a film-forming component, an additive and water according to the mass percentage of the components;
heating water to 50-60 ℃, sequentially adding the film forming component and the antirust component for dissolution, and then adding the additive for mixing to obtain the water-based antirust agent.
Another object of the embodiment of the present invention is to provide a water-based rust inhibitor prepared by the above preparation method.
Another object of an embodiment of the present invention is to provide an application of the above water-based rust inhibitor in rust prevention treatment of ferrous metals.
The long-acting water-based antirust agent provided by the invention can effectively solve the problem of subsequent cleaning by compounding the antirust component and the film-forming component and using water as a solvent, improves the antirust performance, ductility and film-forming property of the water-based antirust agent, reduces the difficulty of manual spraying, and prolongs the antirust period of a workpiece.
Specifically, compared with the prior art, the technical scheme provided by the invention has the following advantages:
1. the antirust component provided by the invention has excellent antirust effect on ferrous metals, and the more obvious the effect on cast iron filings is along with the increase of the adding concentration.
2. According to the film forming component, the amine has certain antirust performance on ferrous metal, and meanwhile, the chemical bond of the film forming component can form a compact film layer on the metal plate, so that a large amount of oxygen and moisture can be isolated; further, si, ti or Zr therein can fill the rust points and rust sites, and therefore, the water-based rust inhibitor added with the film-forming component can well inhibit rust.
3. The water-based antirust agent has excellent antirust effect on ferrous metals due to the combined action of the antirust component and the film forming component, and has the advantages of good ductility, good adhesive force and thin film.
4. The water-based antirust agent supports the use of stock solution and diluent, has simple use process and is suitable for the rust prevention of ferrous metal products during working procedures and short-term storage.
5. The water antirust agent is colorless liquid, no obvious film layer is formed on the surface of a coated metal product, and compared with antirust oil, the water antirust agent can achieve the cleaning-free property before subsequent processing.
Drawings
FIG. 1 is a film forming mechanism diagram of film forming components.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment of the invention, a long-acting water-based rust inhibitor is provided, which comprises the following components in percentage by mass: 5% -30% of antirust component, 5% -50% of film forming component, 1% -5% of additive and 15% -89% of water;
the antirust component is prepared by reacting 1-aminocyclopropane carboxylate with an alkaline substance;
the film-forming component includes one or more film-forming agents; the film forming agent is prepared by reacting main raw materials with acetic acid and then reacting with alcohol amine; the main raw material is at least one of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, tetrabutyl titanate, tetraethoxysilane, tetrabutyl silicate and tetrabutyl zirconate.
Wherein, the water-based antirust agent products with different antirust periods can be prepared by compounding the film-forming component and the antirust component and adjusting different proportions.
It should be noted that the film forming component may be composed of a plurality of film forming agents, and the preparation methods of the film forming agents are similar, except that the main raw materials adopted are different. The multiple film forming agents can be prepared independently or by adding multiple main raw materials at the same time.
Specifically, when gamma- (2, 3-glycidoxy) propyl trimethoxy silane is adopted as a main raw material and reacts with acetic acid, a reactant A with a structural formula shown in the formula A can be prepared; then, the reactant A is reacted with alcohol amine to prepare the film forming agent D shown in the structural formula D.
Figure BDA0004136268660000041
The film forming mechanism diagram of the film forming component is shown in figure 1.
When the main raw material adopts tetrabutyl titanate, the tetrabutyl titanate reacts with acetic acid to prepare a reactant B with a structural formula shown in the formula B; then, the reactant B is reacted with alcohol amine to prepare the film forming agent E shown in the structural formula E.
Figure BDA0004136268660000051
When the main raw material adopts tetrabutyl zirconate, the tetrabutyl zirconate reacts with acetic acid to prepare a reactant C with a structural formula shown in the following formula C; then, the reactant C is reacted with alcohol amine to prepare the film forming agent F shown in the structural formula F.
Figure BDA0004136268660000052
R, R in the above structural formula 1 R is as follows 2 Each independently a substituent, the particular substituent being determined by the starting materials.
In a preferred embodiment of the present invention, the water-based rust inhibitor comprises the following components in mass percent: 20-30% of antirust component, 8-15% of film-forming component, 1-3% of additive and 52-71% of water.
In a preferred embodiment of the present invention, the method for preparing the rust inhibitive component comprises the steps of:
adding 1-aminocyclopropane hydrochloride into hexazine solvent, heating to 110-120 ℃, adding alkaline substance, cooling to 70-90 ℃ and reacting to obtain the antirust component.
Further, the mass ratio of the 1-aminocyclopropane hydrochloride to the alkaline substance is 1:1-1.5.
In a preferred embodiment of the present invention, the alkaline substance is an organic base.
In a preferred embodiment of the present invention, the alkaline substance is at least one of monoethanolamine, diethanolamine, and triethanolamine.
In a preferred embodiment of the present invention, the method for preparing the film forming agent comprises the steps of:
and (3) taking distilled water, regulating the pH value of the distilled water to 5-6 by using acetic acid, adding main raw materials to carry out hydrolysis reaction, and then adding alcohol amine to carry out reaction to obtain the film forming agent.
Further, the temperature of the hydrolysis reaction is controlled to be 35-55 ℃.
In a preferred embodiment of the present invention, the additive comprises at least one of a chelating agent, a surfactant, and benzotriazole.
Further, the chelating agent may employ EDTA-4Na and/or EDTA-2Na, but is not limited thereto; the surfactant may be sodium dodecyl benzene sulfonate, but is not limited thereto.
Another object of the embodiment of the present invention is to provide a method for preparing the above water-based rust inhibitor, which includes the following steps:
weighing an antirust component, a film-forming component, an additive and water according to the mass percentage of the components;
heating water to 50-60 ℃, sequentially adding the film forming component and the antirust component for dissolution, and then adding the additive for mixing to obtain the water-based antirust agent.
Wherein, due to the nature of the amine in the film-forming component, the pH value of the whole solution can be maintained at 9-10, and the rust-preventing component can be rapidly dissolved in the water by heating the water to 50-60 ℃.
In another embodiment of the invention, the application of the water-based antirust agent in the antirust treatment of ferrous metals is also provided.
Specifically, the water-based antirust agent can be diluted in water to prepare working solutions with different antirust effects; then, the working solution can be coated on the surface of the ferrous metal in a spray coating or dip coating mode (selected according to the shape and the field condition of the workpiece); the working solution coated on the surface of the ferrous metal can effectively inhibit the occurrence of rust and isolate contact of water molecules and oxygen, thereby achieving good rust prevention effect.
In summary, the long-acting water-based antirust agent provided by the embodiment of the invention can effectively solve the problem of subsequent cleaning by compounding the antirust component and the film-forming component and using water as a solvent, improves the antirust performance, ductility and film-forming property of the water-based antirust agent, reduces the difficulty of manual spraying, and prolongs the antirust period of a workpiece.
The following examples are illustrative of some of the practical embodiments of the present invention, but are not limited thereto.
Example 1
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, antirust componentPreparation: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, and introducing N 2 Protecting and heating to 120 ℃ for reaction for 1h, adding 6kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and cooling and crystallizing the resultant liquid to obtain solid powder which is an antirust component for later use.
S2, preparation of a film forming component: taking 5kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 4kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, stirring at 55 ℃ for hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant A; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous light yellow solution, namely the film forming component for later use.
S3, heating 6kg of distilled water to 55 ℃, sequentially adding 0.9kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-2Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
The water-based rust inhibitor was subjected to performance index detection according to the relevant standards, and the results are shown in table 1.
TABLE 1
Figure BDA0004136268660000081
In addition, on the basis of the water-based antirust agent, if alkaline substances are not added in the process of preparing the antirust component, the prepared antirust component has no antirust effect on ferrous metals, and the testing time of the final product in the antirust test, the corrosion test (except for brass items), the cast iron chip antirust test and the like can be shortened to about 20-30%; if no film forming component is added, the testing time of the cast iron filings rust prevention test of the final product can reach 2 hours at most, and the testing time of the rust prevention test and the corrosion test (except for brass items) can be shortened to 60 percent.
Example 2
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, and introducing N 2 Protecting and heating to 120 ℃ for reaction for 1h, adding 6kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and cooling and crystallizing the resultant liquid to obtain solid powder which is an antirust component for later use.
S2, preparation of a film forming component: taking 8kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 1kg of tetrabutyl titanate, and stirring at 45 ℃ to carry out hydrolysis reaction to obtain a uniform and stable solution to obtain a reactant B; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous light yellow solution, namely the film forming component for later use.
S3, heating 6kg of distilled water to 55 ℃, sequentially adding 0.9kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-2Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
The water-based rust inhibitor was subjected to performance index detection according to the relevant standards, and the results are shown in table 2.
TABLE 2
Figure BDA0004136268660000091
Example 3
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, and introducing N 2 Protecting and heating to 120 ℃ for reaction for 1h, adding 6kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, and cooling to room temperature after the reaction is completed to obtain the productCooling and crystallizing the resultant liquid to obtain solid powder, namely the antirust component for later use.
S2, preparation of a film forming component: taking 8.5kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 0.5kg of tetrabutyl titanate, and stirring at 35 ℃ to perform hydrolysis reaction to obtain a uniform and stable solution to obtain a reactant C; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous light yellow solution, namely the film forming component for later use.
S3, heating 6kg of distilled water to 55 ℃, sequentially adding 0.9kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-2Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
The water-based rust inhibitor was subjected to performance index detection according to the relevant standards, and the results are shown in table 3.
TABLE 3 Table 3
Figure BDA0004136268660000101
Example 4
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: an anticorrosive component was prepared in the same manner as in example 1 for use.
S2, preparation of a film forming component: taking 4kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 4kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane and 1kg of tetrabutyl titanate, and stirring at 35 ℃ to perform hydrolysis reaction to obtain a uniform and stable solution to obtain a reactant A and a reactant B; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous light yellow solution, namely the film forming component for later use.
S3, heating 6kg of distilled water to 55 ℃, sequentially adding 0.9kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-2Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
The water-based rust inhibitor was subjected to performance index detection according to the relevant standards, and the results are shown in table 4.
TABLE 4 Table 4
Figure BDA0004136268660000111
Example 5
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: an anticorrosive component was prepared in the same manner as in example 1 for use.
S2, preparation of a film forming component: taking 3.2kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 4kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, lkg tetrabutyl titanate and 0.8kg of tetrabutyl zirconate, stirring at 35 ℃ to perform hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant A, a reactant B and a reactant C; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous light yellow solution, namely the film forming component for later use.
S3, heating 6kg of distilled water to 55 ℃, sequentially adding 0.9kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-2Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
The water-based rust inhibitor was subjected to performance index detection according to the relevant standards, and the results are shown in table 5.
TABLE 5
Figure BDA0004136268660000121
Example 6
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, and introducing N 2 Protecting and heating to 110 ℃ for reaction for 1h, adding 5kg of monoethanolamine under stirring, simultaneously reducing the temperature to 70 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and cooling and crystallizing the resultant liquid to obtain solid powder, namely the antirust component for later use.
S2, preparation of a film forming component: taking 5kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 4kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, stirring at 55 ℃ for hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous solution, namely a film-forming component for later use.
S3, heating 8.9kg of distilled water to 50 ℃, sequentially adding 0.5kg of the film-forming component and 0.5kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.01kg of EDTA-4Na and 0.04kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
Example 7
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: 6kg of hexazine solvent is added into a reaction kettle, 3kg of 1-aminocyclopropane carboxylate is added under stirring, N2 is introduced for protection and is heated to 120 ℃ for reaction for 1h, 4.5kg of diethanolamine is added under stirring, the temperature is reduced to 90 ℃ for reaction for 2h, after the reaction is completed, the temperature is reduced to room temperature, and the resultant liquid is cooled and crystallized to obtain solid powder which is the antirust component for later use.
S2, preparation of a film forming component: taking 7kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 2kg of tetraethoxysilane, stirring at 55 ℃ to carry out hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous solution, namely a film-forming component for later use.
S3, heating 1.5kg of distilled water to 60 ℃, sequentially adding 5kg of the film-forming component and 3kg of the antirust component for dissolution, and then adding 0.3kg of benzotriazole, 0.1kg of EDTA-2Na and 0.1kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
Example 8
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 4kg of hexazine solvent into a reaction kettle, adding 6kg of 1-aminocyclopropane carboxylate under stirring, and introducing N 2 Protecting and heating to 115 ℃ for reaction for 1h, adding 3kg of diethanolamine and 3kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and cooling and crystallizing the resultant liquid to obtain solid powder which is an antirust component for later use.
S2, preparation of a film forming component: taking 7kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 2kg of tetrabutyl silicate, and stirring at 45 ℃ to carry out hydrolysis reaction to obtain a uniform and stable solution; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous solution, namely a film-forming component for later use.
S3, heating 7.1kg of distilled water to 55 ℃, sequentially adding 2kg of the film-forming component and 0.8kg of the antirust component for dissolution, and then adding 0.05kg of benzotriazole, 0.04kg of EDTA-2Na and 0.01kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
Example 9
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, introducing N2 for protection, heating to 120 ℃ for reaction for 1h, adding 2kg of diethanolamine and 3kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and crystallizing the resultant liquid to obtain solid powder which is the antirust component for later use.
S2, preparation of a film forming component: taking 7kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 2kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, stirring at 45 ℃ for hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous solution, namely a film-forming component for later use.
S3, heating 5.2kg of distilled water to 55 ℃, sequentially adding 3kg of the film-forming component and 1.5kg of the antirust component for dissolution, and then adding 0.1kg of benzotriazole, 0.1kg of EDTA-2Na and 0.1kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
Example 10
The embodiment provides a preparation method of a long-acting water-based antirust agent, which comprises the following steps:
s1, preparing an antirust component: adding 5kg of hexazine solvent into a reaction kettle, adding 5kg of 1-aminocyclopropane carboxylate under stirring, introducing N2 for protection, heating to 120 ℃ for reaction for 1h, adding 2kg of diethanolamine and 3kg of triethanolamine under stirring, simultaneously reducing the temperature to 80 ℃ for reaction for 2h, cooling to room temperature after the reaction is completed, and crystallizing the resultant liquid to obtain solid powder which is the antirust component for later use.
S2, preparation of a film forming component: taking 6kg of distilled water, regulating the pH value of the solution to 5-6 by using acetic acid, then adding 3kg of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, stirring at 55 ℃ for hydrolysis reaction to obtain a uniform and stable solution, and obtaining a reactant; then adding 1kg of alcohol amine, stirring and reacting for 1.5h, and cooling to obtain a viscous solution, namely a film-forming component for later use.
S3, heating 6.3kg of distilled water to 55 ℃, sequentially adding 2.5kg of the film-forming component and 1kg of the antirust component for dissolution, and then adding 0.1kg of benzotriazole, 0.05kg of EDTA-2Na and 0.05kg of sodium dodecyl benzene sulfonate for full and uniform stirring to obtain the water-based antirust agent.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description.

Claims (10)

1. The long-acting water-based antirust agent is characterized by comprising the following components in percentage by mass: 5% -30% of antirust component, 5% -50% of film forming component, 1% -5% of additive and 15% -89% of water;
the antirust component is prepared by reacting 1-aminocyclopropane carboxylate with an alkaline substance;
the film-forming component includes one or more film-forming agents; the film forming agent is prepared by reacting main raw materials with acetic acid and then reacting with alcohol amine; the main raw material is at least one of gamma- (2, 3-glycidoxy) propyl trimethoxy silane, tetrabutyl titanate, tetraethoxysilane, tetrabutyl silicate and tetrabutyl zirconate.
2. The long-acting water-based antirust agent according to claim 1, wherein the water-based antirust agent comprises the following components in percentage by mass: 20-30% of antirust component, 8-15% of film-forming component, 1-3% of additive and 52-71% of water.
3. The long-acting aqueous rust inhibitor of claim 1, wherein the method of preparing the rust inhibiting component comprises the steps of:
adding 1-aminocyclopropane hydrochloride into hexazine solvent, heating to 110-120 ℃, adding alkaline substance, cooling to 70-90 ℃ and reacting to obtain the antirust component.
4. A long-acting water-based rust inhibitor according to claim 1 or 3, wherein said alkaline substance is at least one of monoethanolamine, diethanolamine, triethanolamine.
5. The long-acting water-based antirust agent according to claim 1, wherein the preparation method of the film forming agent comprises the following steps:
and (3) taking distilled water, regulating the pH value of the distilled water to 5-6 by using acetic acid, adding main raw materials to carry out hydrolysis reaction, and then adding alcohol amine to carry out reaction to obtain the film forming agent.
6. A long acting water based rust inhibitor according to claim 5 wherein the temperature of the hydrolysis reaction is controlled to be 35-55 ℃.
7. A long acting water based rust inhibitor according to claim 1 wherein said additive comprises at least one of a chelating agent, a surfactant and benzotriazole.
8. A method for preparing the water-based rust inhibitor according to any one of claims 1 to 7, comprising the steps of:
weighing an antirust component, a film-forming component, an additive and water according to the mass percentage of the components;
heating water to 50-60 ℃, sequentially adding the film forming component and the antirust component for dissolution, and then adding the additive for mixing to obtain the water-based antirust agent.
9. A water-based rust inhibitor produced by the production method of claim 8.
10. Use of the water-based rust inhibitive agent according to any one of claims 1 to 7 and 9 in rust inhibitive treatment of ferrous metals.
CN202310276078.5A 2023-03-17 2023-03-17 Long-acting water-based antirust agent and preparation method and application thereof Pending CN116288363A (en)

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