CN105820606A - Aluminum electrode anticorrosive paint and preparation method thereof - Google Patents
Aluminum electrode anticorrosive paint and preparation method thereof Download PDFInfo
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- CN105820606A CN105820606A CN201610233304.1A CN201610233304A CN105820606A CN 105820606 A CN105820606 A CN 105820606A CN 201610233304 A CN201610233304 A CN 201610233304A CN 105820606 A CN105820606 A CN 105820606A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention discloses an aluminum electrode anticorrosive paint. The aluminum electrode anticorrosive paint comprises the following raw materials in parts by weight: 0.7 to 1 part of cetyl trimethyl ammonium bromide, 0.05 to 0.06 part of magnesium sulphate, 0.06 to 0.07 part of benzotriazole, 1.7 to 2 parts of octaphenyl polyoxyethyiene, 0.3 to 0.5 part of lauryl amine, 46 to 50 parts of tetraethyl orthosilicate, 0.3 to 0.4 part of trichloro(dodecyl)silane, 13 to 20 parts of tetrapropyl zirconate, 7 to 10 parts of ethyl acetoacetate, 57 to 60 parts of isopropanol and 10 to 13 parts of a silane coupling agent kh560. The aluminum electrode anticorrosive paint can improve the corrosion resistant performance of inorganic coating.
Description
Technical field
The present invention relates to electrode corrosion-resistant technical field, particularly relate to a kind of aluminum electrode corrosion-resistant coating and preparation method thereof.
Background technology
Metal coating anticorrosion is one of important method of anti-corrosion of metal; and coating itself only serves passive physical isolation effect; i.e. prevent metal surface from contacting, owing to coat inside there may be some defects (such as micropore), so metal can not be adequately protected with the direct of surrounding medium.In order to improve its Active Anticorrosion, in the way of direct or indirect, add inorganic or organic inhibitor.The corrosion inhibiter directly added may interact with coating, reduce the intensity of coating, also result in unnecessary waste simultaneously, and indirect mode mainly loads corrosion inhibiter by carrier material, prevent directly contacting of corrosion inhibiter and coating, also be able to if desired to discharge, preferable corrosion inhibiter carrier needs possess two big features, on the one hand, carrier material can not react with coating itself, and has the preferable compatibility with coating；On the other hand, corrosion inhibiter coating efficiency in the carrier should be higher, and when coating is stimulated by external environment, corrosion inhibiter can discharge at short notice, protects metal surface；
Recent study shows, can be by inorganic material as corrosion inhibition for metal agent carrier, such as kaolin nanotube, Ti02 and Si02 microsphere or nanotube the most mesoporous Si02 microsphere are widely used, and have high-specific surface area, high pore volume mainly due to it, chemical stability is good and easily carries out the advantages such as surface-functionalized modification；
And in terms of mesoporous Si02 microsphere is carried out functional modification, have the method that research uses LBL self-assembly, and forming multi-layer polyelectrolyte at mesoporous Si02 microsphere surface, polyelectrolyte layer has pH stimulating responsive, can reach the purpose of corrosion inhibiter controllable release；But owing to this method of modifying is more complicated, it is not easy to commercial production, so the exploitation simply method of the mesoporous Si02 microsphere surface of novelty modification, becomes the research direction of people.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of aluminum electrode corrosion-resistant coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of aluminum electrode corrosion-resistant coating, it is made up of the raw material of following weight parts:
Cetyl trimethylammonium bromide 0.7-1, magnesium sulfate 0.05-0.06, BTA 0.06-0.07, OPEO 1.7-2, lauryl amine 0.3-0.5, tetraethyl orthosilicate 46-50, dodecyl trichlorosilane 0.3-0.4, zirconium-n-propylate 13-20, ethyl acetoacetate 7-10, isopropanol 57-60, silane coupler kh56010-13.
The preparation method of a kind of described aluminum electrode corrosion-resistant coating, comprises the following steps:
(1) by above-mentioned cetyl trimethylammonium bromide, magnesium sulfate, BTA mixing, join in the deionized water of compound weight 20-30 times, ultrasonic disperse 1-2 minute, obtain aqueous phase mixed liquor；
(2) by above-mentioned OPEO, lauryl amine mixing, join in the kerosene of compound weight 10-14 times, ultrasonic 2-3 minute, obtain oil phase mixed liquor；
(3) by above-mentioned oil phase mixed liquor, the mixing of aqueous phase mixed liquor, 1600-2000 rev/min is stirred 16-20 minute, add the 3-5% of above-mentioned tetraethyl orthosilicate weight, stirring reaction 20-24 hour, adds the dehydrated alcohol of above-mentioned mixed system weight 1-2%, stirs 2-3 minute, centrifugal, by precipitation absolute ethanol washing 3-4 time, it is dried 20-25 hour at 46-50 DEG C, silicon microsphere must be loaded；
(4) above-mentioned dodecyl trichlorosilane is joined in the dehydrated alcohol of its weight 100-140 times, stir, add load silicon microsphere, at 80-86 DEG C ultrasonic 20-30 minute, centrifugal, will precipitate normal temperature drying, and obtain hydrophobically modified and load silicon microsphere；
(5) by above-mentioned silane coupler kh560, remaining tetraethyl orthosilicate, isopropanol mixing, ultrasonic disperse 3-5 minute, magnetic agitation 20-30 minute, Ludox is obtained；
(6) by above-mentioned zirconium-n-propylate, ethyl acetoacetate mixing, stir, mix with above-mentioned Ludox, stir, add hydrophobically modified load silicon microsphere, magnetic agitation 50-60 minute, at room temperature stand 20-25 hour, obtain described coating.
A kind of aluminum electrode corrosion-resistant coating and preparation method thereof, the using method of described coating is:
First by the sand paper of 8000 mesh, slowly it is polishing to become clear by the surface of aluminum electrode, is carried out with acetone, water the most respectively, respectively wash 3-4 time, natural drying, be soaked in 100-120s in the coating of the present invention, then slowly electrode is put forward, puts and be dried at room temperature,.
The invention have the advantage that the present invention is polymerized by water-in oil microemulsion, the hollow mesoporous Si02 microsphere of preparation cladding corrosion inhibiter BTA, and in aqueous phase, add magnesium ion, so in the mesoporous middle generation oxygen magnesium oxide inorganic salt precipitates of microsphere surface, this method is fairly simple, easily operate, it addition, microsphere surface is carried out hydrophobically modified, finally microsphere is mixed in inorganic coating, it is possible to increase the Corrosion Protection of inorganic coating；
nullFirst emulsifying agent and base catalyst lauryl amine are dissolved in kerosene by the present invention，To be added drop-wise in oil phase dissolved with the aqueous solution of cetyl trimethylammonium bromide and BTA，It is configured to water-in oil microemulsion，Then under the conditions of magnetic force stirs Chinese catalpa，Drip a certain amount of tetraethyl orthosilicate in oil phase，The hydrolysis of tetraethyl orthosilicate proceeds by，Owing to tetraethyl orthosilicate is oil-soluble molecule，Therefore in reverse micro emulsion,Its hydrolysis needs to be diffused into and carries out at oil-water interfaces，Tetraethyl orthosilicate molecule after hydrolysis is with partial negative charge，Can be with cationic emulsifier cetyl trimethylammonium bromide generation electrostatic adsorption，And be attracted on oil-water interfaces，Polycondensation reaction is there is in the tetraethyl orthosilicate molecule finally hydrolyzed in interface，Form the shell of Si02，Magnesium ion in aqueous phase and oxygen oxygen radical ion generation precipitation simultaneously，Generate oxygen magnesium oxide precipitation，Si02 is mesoporous or duct in blocking，And while generating hollow Si02 microsphere，BTA molecule is also covered by the inside of microsphere，The oxygen magnesium oxide precipitation generated hinders BTA oozing out from microsphere；
In electrochemical corrosion course, the change of Acidity of Aikalinity may can occur at regional area, stimulate the carrier of cladding corrosion inhibiter to respond；
When by alkali liquid corrosion, BTA dissolubility in alkali liquor is higher, constantly will discharge from micropore, plays the effect of inhibition；
When by acid liquid corrosion, the magnesium hydrate precipitate thing in the mesopore orbit of microsphere surface is dissolved by H+ in acid solution, and the BTA in duct can quickly discharge, and reaches antiseptical purpose；
The corrosion phenomenon of electrochemistry can occur in neutral etchant solution according to aluminum, the corrosion of metallic aluminium generation regional area, anode can generate aluminium ion freely, dissolve in the solution, generation oxygen aluminium oxide or precipitation of alumina can be reacted with other compositions (such as OH-) in solution, meanwhile, due to the consumption of OH-in anode region, hydrion and the formation of hydrogen ion in whole system can be promoted, solution is finally made to become acid, can be seen that from analysis above, under sour environment, magnesium hydrate precipitate thing in the mesopore orbit of microsphere surface is dissolved by H+ in acid solution, BTA in duct can quickly discharge, so can be in negative electrode or anode surface film forming, the further corrosion of suppression metal；.
Detailed description of the invention
A kind of aluminum electrode corrosion-resistant coating, it is made up of the raw material of following weight parts:
Cetyl trimethylammonium bromide 0.7, magnesium sulfate 0.05, BTA 0.06, OPEO 1.7, lauryl amine 0.3, tetraethyl orthosilicate 46, dodecyl trichlorosilane 0.3, zirconium-n-propylate 13, ethyl acetoacetate 7, isopropanol 57, silane coupler kh56010.
The preparation method of a kind of described aluminum electrode corrosion-resistant coating, comprises the following steps:
(1) by above-mentioned cetyl trimethylammonium bromide, magnesium sulfate, BTA mixing, join in the deionized water of compound weight 20 times, ultrasonic disperse 1 minute, obtain aqueous phase mixed liquor；
(2) by above-mentioned OPEO, lauryl amine mixing, join in the kerosene of compound weight 10 times, ultrasonic 2 minutes, obtain oil phase mixed liquor；
(3) by above-mentioned oil phase mixed liquor, the mixing of aqueous phase mixed liquor, 1600 revs/min are stirred 16 minutes, add the 3% of above-mentioned tetraethyl orthosilicate weight, stirring reaction 20 hours, adds the dehydrated alcohol of above-mentioned mixed system weight 1%, stirs 2 minutes, centrifugal, by precipitation absolute ethanol washing 3 times, it is dried 20 hours at 46 DEG C, silicon microsphere must be loaded；
(4) above-mentioned dodecyl trichlorosilane is joined in the dehydrated alcohol of its weight 100 times, stir, add load silicon microsphere, at 80 DEG C ultrasonic 20 minutes, centrifugal, will precipitate normal temperature drying, and obtain hydrophobically modified and load silicon microsphere；
(5) by above-mentioned silane coupler kh560, remaining tetraethyl orthosilicate, isopropanol mixing, ultrasonic disperse 3 minutes, magnetic agitation 20 minutes, Ludox is obtained；
(6) by above-mentioned zirconium-n-propylate, ethyl acetoacetate mixing, stir, mix with above-mentioned Ludox, stir, add hydrophobically modified load silicon microsphere, magnetic agitation 50 minutes, at room temperature stand 20 hours, obtain described coating.
A kind of aluminum electrode corrosion-resistant coating and preparation method thereof, the using method of described coating is:
First by the sand paper of 8000 mesh, slowly it is polishing to become clear by the surface of aluminum electrode, is carried out with acetone, water the most respectively, respectively wash 3 times, natural drying, be soaked in 100s in the coating of the present invention, then slowly electrode put forward, put and be dried at room temperature,.
In the NaCl solution of 0.1 M, the inhibitor efficiency of aluminum is reached 99.26%.
Claims (3)
1. an aluminum electrode corrosion-resistant coating, it is characterised in that it is made up of the raw material of following weight parts:
Cetyl trimethylammonium bromide 0.7-1, magnesium sulfate 0.05-0.06, BTA 0.06-0.07, OPEO 1.7-2, lauryl amine 0.3-0.5, tetraethyl orthosilicate 46-50, dodecyl trichlorosilane 0.3-0.4, zirconium-n-propylate 13-20, ethyl acetoacetate 7-10, isopropanol 57-60, silane coupler kh56010-13.
2. the preparation method of an aluminum electrode corrosion-resistant coating as claimed in claim 1, it is characterised in that comprise the following steps:
(1) by above-mentioned cetyl trimethylammonium bromide, magnesium sulfate, BTA mixing, join in the deionized water of compound weight 20-30 times, ultrasonic disperse 1-2 minute, obtain aqueous phase mixed liquor；
(2) by above-mentioned OPEO, lauryl amine mixing, join in the kerosene of compound weight 10-14 times, ultrasonic 2-3 minute, obtain oil phase mixed liquor；
(3) by above-mentioned oil phase mixed liquor, the mixing of aqueous phase mixed liquor, 1600-2000 rev/min is stirred 16-20 minute, add the 3-5% of above-mentioned tetraethyl orthosilicate weight, stirring reaction 20-24 hour, adds the dehydrated alcohol of above-mentioned mixed system weight 1-2%, stirs 2-3 minute, centrifugal, by precipitation absolute ethanol washing 3-4 time, it is dried 20-25 hour at 46-50 DEG C, silicon microsphere must be loaded；
(4) above-mentioned dodecyl trichlorosilane is joined in the dehydrated alcohol of its weight 100-140 times, stir, add load silicon microsphere, at 80-86 DEG C ultrasonic 20-30 minute, centrifugal, will precipitate normal temperature drying, and obtain hydrophobically modified and load silicon microsphere；
(5) by above-mentioned silane coupler kh560, remaining tetraethyl orthosilicate, isopropanol mixing, ultrasonic disperse 3-5 minute, magnetic agitation 20-30 minute, Ludox is obtained；
(6) by above-mentioned zirconium-n-propylate, ethyl acetoacetate mixing, stir, mix with above-mentioned Ludox, stir, add hydrophobically modified load silicon microsphere, magnetic agitation 50-60 minute, at room temperature stand 20-25 hour, obtain described coating.
3. according to a kind of aluminum electrode corrosion-resistant coating described in claim 1,2 and preparation method thereof, it is characterised in that the using method of described coating is:
First by the sand paper of 8000 mesh, slowly it is polishing to become clear by the surface of aluminum electrode, is carried out with acetone, water the most respectively, respectively wash 3-4 time, natural drying, be soaked in 100-120s in the coating of the present invention, then slowly electrode is put forward, puts and be dried at room temperature,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233304.1A CN105820606A (en) | 2016-04-15 | 2016-04-15 | Aluminum electrode anticorrosive paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233304.1A CN105820606A (en) | 2016-04-15 | 2016-04-15 | Aluminum electrode anticorrosive paint and preparation method thereof |
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| CN105820606A true CN105820606A (en) | 2016-08-03 |
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| CN201610233304.1A Pending CN105820606A (en) | 2016-04-15 | 2016-04-15 | Aluminum electrode anticorrosive paint and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068963A (en) * | 2016-12-28 | 2017-08-18 | 中国电子科技集团公司第十八研究所 | Surface treatment method of aluminum electrode |
| CN113073365A (en) * | 2021-03-25 | 2021-07-06 | 北京冬曦既驾科技咨询有限公司 | High-corrosion-resistance magnesium alloy electroplated layer and preparation method thereof |
-
2016
- 2016-04-15 CN CN201610233304.1A patent/CN105820606A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068963A (en) * | 2016-12-28 | 2017-08-18 | 中国电子科技集团公司第十八研究所 | Surface treatment method of aluminum electrode |
| CN113073365A (en) * | 2021-03-25 | 2021-07-06 | 北京冬曦既驾科技咨询有限公司 | High-corrosion-resistance magnesium alloy electroplated layer and preparation method thereof |
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Application publication date: 20160803 |