CN112575331A - Mildew-proof corrosion inhibitor for airplane and preparation method thereof - Google Patents
Mildew-proof corrosion inhibitor for airplane and preparation method thereof Download PDFInfo
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- CN112575331A CN112575331A CN202011557281.2A CN202011557281A CN112575331A CN 112575331 A CN112575331 A CN 112575331A CN 202011557281 A CN202011557281 A CN 202011557281A CN 112575331 A CN112575331 A CN 112575331A
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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
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
- C23F11/163—Sulfonic acids
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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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
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
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- Mechanical Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Materials Engineering (AREA)
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- Metallurgy (AREA)
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Abstract
The invention belongs to the technical field of aircraft anticorrosion maintenance articles, and discloses a mildew-proof corrosion inhibitor for an aircraft and a preparation method thereof, wherein the mildew-proof corrosion inhibitor comprises the following components in parts by weight: the mildew inhibitor prepared by an innovative process has good stability, excellent permeability and dehydration performance, good flexibility of a film layer, less weight increment of an airplane, obvious inhibition effect on two groups of commonly used strains specified in a mildew test, and good corrosion protection effect on various metals such as steel, copper, aluminum, magnesium, cadmium, zinc and the like on the surface of the airplane.
Description
Technical Field
The invention belongs to the technical field of aircraft anti-corrosion maintenance articles, and particularly relates to a mildew-proof corrosion inhibitor for an aircraft and a preparation method thereof.
Background
The mildew-proof corrosion inhibitor is a chemical substance or a mixture of several chemical substances which can effectively prevent the growth of microorganisms and have special effects on the aspects of preventing the corrosion of base metal or the deterioration of a coating when being present in an environment (medium) in proper concentration and form. According to the type of film forming, a film layer formed by the mildew-proof corrosion inhibitor is a dry film, and is mainly applied to corrosion protection of metal or coating surfaces of an aircraft landing gear cabin, a structural area near an oil tank and an electronic equipment cabin in a high-temperature and high-humidity environment.
At present, hard film corrosion inhibitors are mainly adopted for maintaining an aircraft landing gear cabin, a structural area near an oil tank and an electronic equipment cabin, products such as AV-15, AV-30, CORBAN 35 and the like are common products abroad, products such as TFHS-15, YTF-3 and the like are domestic, the products have certain effect on the corrosion protection of the internal structure of the airplane, but the three special parts have severe use environment, and particularly, the hard film corrosion inhibitor is quickly damaged and grows mildew due to the pollution of hydraulic oil and fuel oil, so that the mildew-proof corrosion inhibitor is specially developed abroad, and relevant material standards are established and modified, such as adding a Type I product in MIL-PRF-81309H (but the product is different from the invention, is a wet film Type and has short protection period), at home, the relevant standards of the mildew-proof corrosion inhibitor are not available, and the mature products of the mildew-proof corrosion inhibitor are not available in the market.
Disclosure of Invention
The invention aims to provide a mildew-proof corrosion inhibitor for an airplane and a preparation method thereof, which are used for solving the problems that the current corrosion inhibitor product has poor mildew-proof performance in areas near a landing gear cabin and an oil tank and in areas near an electronic equipment cabin, the urgent need of a naval airplane for the mildew-proof corrosion inhibitor and the like, and the mildew-proof function of the current corrosion inhibitor is strengthened.
In order to achieve the purpose, the invention provides the following technical scheme:
the first technical scheme is as follows:
a mold and corrosion inhibitor for an aircraft, the mold and corrosion inhibitor comprising: the corrosion-inhibiting agent comprises a solvent, a cosolvent, film-forming resin, a corrosion-inhibiting additive, a dehydrating agent and a mildew-proof agent, and is prepared from the following raw materials in parts by weight:
the technical scheme of the invention has the characteristics and further improvements that:
(1) the solvent is one or more of D30, D50, D65, D80 and naphtha.
(2) The cosolvent is a mixture of anhydrous ethanol and propylene glycol monomethyl ether.
(3) The film-forming resin comprises one or more of polyvinyl butyral resin and terpene phenolic resin.
(4) The corrosion inhibition additive is one or more of barium petroleum sulfonate, zinc naphthenate and barium dinonyl naphthalene sulfonate.
(5) The dehydrating agent is one or more of SPAN80, PE910 or alkyl phosphamide substances.
(6) The mildew preventive is composed of octyl isothiazolinone and sodium pyrithione.
The second technical scheme is as follows:
a method for preparing a mildew-proof corrosion inhibitor for an aircraft, which is used for preparing the mildew-proof corrosion inhibitor for the aircraft according to the first technical scheme, and comprises the following steps:
the first step is as follows: slowly adding a mildew preventive, namely sodium pyrithione, into a quantitative cosolvent mixed solution of anhydrous ethanol and propylene glycol methyl ether, and fully and uniformly stirring to form a sodium pyrithione alcohol ether solution for later use;
the second step is that: uniformly mixing the film-forming resin and the solvent according to a proportion, heating to 60 ℃, stirring until the film-forming resin and the solvent are completely dissolved, adding a corrosion inhibition additive, a dehydrating agent and a mildew preventive octyl isothiazolinone, continuously stirring uniformly, and cooling to normal temperature for later use;
the third step: slowly adding the solution of the sodium pyrithione alcohol ether prepared in the first step into the solution prepared in the second step, and uniformly stirring;
the fourth step: and filtering the solution obtained in the third step by using a diaphragm pump to form the mildew-proof corrosion inhibitor.
Compared with the prior art, the invention has the beneficial effects that:
the mildew-proof corrosion inhibitor prepared by adopting reasonable raw materials and proportions thereof through an innovative process has the advantages of good stability, excellent permeability and dehydration performance, good flexibility of a film layer (10-15 mu m), small airplane weight increment, obvious inhibition effect on two groups of commonly used strains specified in GJB150.10A-2009 mildew test, and good corrosion protection effect on various metals such as steel, copper, aluminum, magnesium, cadmium, zinc and the like on the surface of an airplane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The corrosion problems of structural areas near a landing gear cabin and an oil tank and an electronic equipment cabin area of a naval aircraft frequently flying in a coastal area are typical, the main reasons are that the coastal area has high humidity (75% -80%), much sea fog exists, the salt content in the atmosphere is high, and the pollution of hydraulic oil and fuel oil provides a nutrient source for the growth of mold, so that the large growth of the mold is caused, and the corrosion is aggravated. At present, except for regular cleaning of an airplane, a corrosion inhibitor is used as a method for controlling corrosion in the daily maintenance process, but the existing corrosion inhibitor product is not designed differently on the function of the airplane, and particularly the mildew-proof function is not enhanced, so that the protection effect is poor.
In view of the above, the present invention is intended to solve the problems of the current corrosion inhibitor product, such as poor mildew resistance in the areas near the landing gear bay and the fuel tank and in the areas near the electronic equipment bay, and the urgent need of the naval aircraft for the mildew-proof corrosion inhibitor, and to reinforce the mildew-proof function of the current corrosion inhibitor.
The invention aims to provide a water replacement type hard film mildew-proof corrosion inhibitor. The multifunctional mildew-proof corrosion inhibitor with the effects of mildew prevention, corrosion inhibition, permeation, dehydration and the like is prepared by fully fusing a plurality of effective functional components.
The mildew-proof corrosion inhibitor adopts the following technical scheme, mainly comprises a solvent, a cosolvent, film-forming resin, a corrosion inhibition additive, a dehydrating agent and a mildew inhibitor, and is prepared from the following raw materials in parts by weight:
the solvent is one or more of D30, D50, D65, D80 and naphtha,
the cosolvent is a mixture of absolute ethyl alcohol and propylene glycol monomethyl ether,
the film-forming resin is a commercial product and comprises one or more of polyvinyl butyral resin and terpene phenolic resin,
the corrosion inhibition additive is one or more of barium petroleum sulfonate, zinc naphthenate and barium dinonyl naphthalene sulfonate,
the dehydrating agent is one or more of SPAN80, PE910 or alkyl phosphamide substances,
the mildew preventive is composed of octyl isothiazolinone and sodium pyrithione.
The existing corrosion inhibitors (containing rust preventive oil or preservatives) are various, but most of the corrosion inhibitors can not be directly applied to airplanes, and the reason is that the corrosion inhibitors can not meet the requirements of compatibility with common materials of airplanes, such as primer and finish paint, cables, sealants and the like which are commonly used for airplanes. Therefore, the compatibility of the mildew-proof corrosion inhibitor and various materials of the airplane is fully considered and tested, and the solvent selected by the invention can dissolve the corrosion inhibitor resin and other components, but can not dissolve the common materials of the airplane.
The traditional corrosion inhibitor film-forming resin does not consider the special environment of airplane service and the requirement of maintenance, and the flexibility and removability can not meet the requirement. The film-forming resin selected by the invention not only considers the compatibility with airplane materials, but also considers the indexes of flexibility and removability.
Although the traditional water replacement hard film corrosion inhibitor has good corrosion resistance and safety, the mildew-proof effect at a special part is poor because the mildew-proof function is not particularly enhanced, the method simultaneously adds two water-soluble and oil-soluble mildew inhibitors into the mildew-proof corrosion inhibitor (the water-soluble mildew inhibitor is added into an oily system through a cosolvent), and when hydraulic oil, fuel oil or moisture accumulates on the surface of a film layer of the mildew-proof corrosion inhibitor, the mildew-proof corrosion inhibitor can release the mildew inhibitor into pollutants to play a mildew-proof effect.
The traditional corrosion inhibitor has no water replacement property or has weak water replacement function, so that the water is not completely replaced, and the mildew-proof corrosion inhibitor has excellent water replacement property and permeability, can permeate into tiny gaps of an airplane structure, and completely removes the water in the tiny gaps.
The traditional corrosion inhibitor has no hydrogen embrittlement index, and the mildew-proof corrosion inhibitor disclosed by the invention does not generate hydrogen embrittlement and is safe to use.
The mildew-proof corrosion inhibitor is prepared by adopting the raw materials in the proportion through the following steps:
the first step is as follows: slowly adding a mildew preventive, namely sodium pyrithione, into a quantitative cosolvent mixed solution of anhydrous ethanol and propylene glycol methyl ether, and fully and uniformly stirring to form a uniform solution for later use;
the second step is that: the film-forming resin and the solvent are mixed uniformly according to the proportion, heated to 60 ℃, stirred until the film-forming resin and the solvent are dissolved completely, added with the corrosion inhibition additive, the dehydrating agent and the mildew preventive octyl isothiazolinone, and stirred uniformly. Cooling to normal temperature for later use.
The third step: slowly adding the solution of the sodium pyrithione alcohol ether prepared in the first step into the solution prepared in the second step, and uniformly stirring;
the fourth step: and filtering by a diaphragm pump to form the mildew-proof corrosion inhibitor.
At present, the mildew-proof corrosion inhibitor is tried on airplanes, the mildew-proof effect is good, the performance is excellent and stable, the aging is long, the environment is protected, and the prepared product can reach the following technical indexes, which are shown in table 1.
TABLE 1
Examples
The mildew-proof corrosion inhibitor is prepared by the following method (parts by weight):
the first step is as follows: 1.0 part of sodium pyrithione is slowly added into a mixture of a certain amount of absolute ethyl alcohol (2 parts) and propylene glycol methyl ether (10 parts), and the mixture is fully and uniformly stirred.
The second step is that: mixing terpene phenolic resin (32 parts), D50 solvent oil (35 parts) and naphtha (5 parts) uniformly according to a proportion, heating to 60 ℃, stirring until the mixture is completely dissolved, adding zinc naphthenate (5 parts), barium dinonylnaphthalene sulfonate (3 parts), SPAN80(5 parts), octyl isothiazolinone (2 parts) and the like, and continuously stirring uniformly. Cooling to normal temperature for later use.
The third step: slowly adding the solution of the sodium pyrithione alcohol ether prepared in the first step into the solution prepared in the second step, and uniformly stirring;
the fourth step: and filtering by a diaphragm pump to form the mildew-proof corrosion inhibitor.
The prepared mildew-proof corrosion inhibitor is tested by referring to related standard methods of GB/T1731, GJB150.10A-2009, MIL-DTL-85054D and BMS3-35, and the test results are shown in the following table 2:
table 2 embodiment 1 product test results
The mildew-proof corrosion inhibitor prepared by adopting reasonable raw materials and proportions thereof through an innovative process has the advantages of good stability, excellent permeability and dehydration performance, good flexibility of a film layer (10-15 mu m), small airplane weight increment, obvious inhibition effect on two groups of commonly used strains specified in GJB150.10A-2009 mildew test, and good corrosion protection effect on various metals such as steel, copper, aluminum, magnesium, cadmium, zinc and the like on the surface of an airplane.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A mold and corrosion inhibitor for an aircraft, the mold and corrosion inhibitor comprising: the corrosion-inhibiting agent comprises a solvent, a cosolvent, film-forming resin, a corrosion-inhibiting additive, a dehydrating agent and a mildew-proof agent, and is prepared from the following raw materials in parts by weight:
2. the mildew-proof corrosion inhibitor for aircraft as claimed in claim 1, wherein the solvent is one or more of D30, D50, D65, D80 and naphtha.
3. The mildew inhibitor for aircraft according to claim 1, wherein the cosolvent is a mixture of anhydrous ethanol and propylene glycol methyl ether.
4. The aircraft mildew inhibitor of claim 1, wherein the film forming resin comprises one or more of polyvinyl butyral resin and terpene phenolic resin.
5. The aircraft mildew and corrosion inhibitor of claim 1, wherein the corrosion inhibiting additive is one or more of barium petroleum sulfonate, zinc naphthenate and barium dinonylnaphthalene sulfonate.
6. The mildew-proof corrosion inhibitor for the aircraft as claimed in claim 1, wherein the dehydrating agent is one or more of SPAN80, PE910 or alkyl phosphamines.
7. The anti-mildew corrosion inhibitor for aircraft according to claim 1, wherein the anti-mildew agent is selected from octyl isothiazolinone and sodium pyrithione.
8. A method for preparing a mildew-proof corrosion inhibitor for aircraft, characterized in that the method is used for preparing the mildew-proof corrosion inhibitor for aircraft according to any one of claims 1 to 7, and the method comprises the following steps:
the first step is as follows: slowly adding a mildew preventive, namely sodium pyrithione, into a quantitative cosolvent mixed solution of anhydrous ethanol and propylene glycol methyl ether, and fully and uniformly stirring to form a sodium pyrithione alcohol ether solution for later use;
the second step is that: uniformly mixing the film-forming resin and the solvent according to a proportion, heating to 60 ℃, stirring until the film-forming resin and the solvent are completely dissolved, adding a corrosion inhibition additive, a dehydrating agent and a mildew preventive octyl isothiazolinone, continuously stirring uniformly, and cooling to normal temperature for later use;
the third step: slowly adding the solution of the sodium pyrithione alcohol ether prepared in the first step into the solution prepared in the second step, and uniformly stirring;
the fourth step: and filtering the solution obtained in the third step by using a diaphragm pump to form the mildew-proof corrosion inhibitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011557281.2A CN112575331A (en) | 2020-12-24 | 2020-12-24 | Mildew-proof corrosion inhibitor for airplane and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011557281.2A CN112575331A (en) | 2020-12-24 | 2020-12-24 | Mildew-proof corrosion inhibitor for airplane and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070096060A1 (en) * | 2005-10-27 | 2007-05-03 | The United States Of America As Represented By The Secretary Of The Navy | Oleaginous corrosion and mildew-inhibiting composition |
| CN104593777A (en) * | 2014-08-19 | 2015-05-06 | 中国特种飞行器研究所 | Preparation method of long-acting water replacement type hard membrane corrosion inhibitor for aircrafts |
| WO2016116605A1 (en) * | 2015-01-22 | 2016-07-28 | Socomore | Corrosion-resistant composition and method for preparing a corrosion-resistant layer on a surface of a substrate using said composition |
| CN106508960A (en) * | 2016-10-25 | 2017-03-22 | 中国科学院理化技术研究所 | Long-acting slow-release mildew inhibitor for artificial board and preparation method thereof |
| CN106811275A (en) * | 2016-12-08 | 2017-06-09 | 中国特种飞行器研究所 | A kind of aircraft electronic electrically uses corrosion inhibiter preparation method |
| CN106867297A (en) * | 2017-01-23 | 2017-06-20 | 北京雅迪力特航空新材料股份公司 | A kind of aircraft dedicated water displaced type preservative |
| CN111100506A (en) * | 2018-10-25 | 2020-05-05 | 立邦涂料（中国）有限公司 | Mildew-proof environment-friendly water-based color paste suitable for color mixing of automatic color mixer and preparation method thereof |
| CN111118514A (en) * | 2020-01-14 | 2020-05-08 | 长沙艾森设备维护技术有限公司 | Multifunctional cleaning agent for aviation aluminum material and preparation method thereof |
-
2020
- 2020-12-24 CN CN202011557281.2A patent/CN112575331A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070096060A1 (en) * | 2005-10-27 | 2007-05-03 | The United States Of America As Represented By The Secretary Of The Navy | Oleaginous corrosion and mildew-inhibiting composition |
| CN104593777A (en) * | 2014-08-19 | 2015-05-06 | 中国特种飞行器研究所 | Preparation method of long-acting water replacement type hard membrane corrosion inhibitor for aircrafts |
| WO2016116605A1 (en) * | 2015-01-22 | 2016-07-28 | Socomore | Corrosion-resistant composition and method for preparing a corrosion-resistant layer on a surface of a substrate using said composition |
| CN106508960A (en) * | 2016-10-25 | 2017-03-22 | 中国科学院理化技术研究所 | Long-acting slow-release mildew inhibitor for artificial board and preparation method thereof |
| CN106811275A (en) * | 2016-12-08 | 2017-06-09 | 中国特种飞行器研究所 | A kind of aircraft electronic electrically uses corrosion inhibiter preparation method |
| CN106867297A (en) * | 2017-01-23 | 2017-06-20 | 北京雅迪力特航空新材料股份公司 | A kind of aircraft dedicated water displaced type preservative |
| CN111100506A (en) * | 2018-10-25 | 2020-05-05 | 立邦涂料（中国）有限公司 | Mildew-proof environment-friendly water-based color paste suitable for color mixing of automatic color mixer and preparation method thereof |
| CN111118514A (en) * | 2020-01-14 | 2020-05-08 | 长沙艾森设备维护技术有限公司 | Multifunctional cleaning agent for aviation aluminum material and preparation method thereof |
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