CN102827504A - Anticorrosion liquid for metal surface corrosion resistance, and preparation method and anticorrosion treatment method thereof - Google Patents
Anticorrosion liquid for metal surface corrosion resistance, and preparation method and anticorrosion treatment method thereof Download PDFInfo
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- CN102827504A CN102827504A CN2012103494625A CN201210349462A CN102827504A CN 102827504 A CN102827504 A CN 102827504A CN 2012103494625 A CN2012103494625 A CN 2012103494625A CN 201210349462 A CN201210349462 A CN 201210349462A CN 102827504 A CN102827504 A CN 102827504A
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- preservative solution
- anticorrosion
- metallic surface
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Abstract
The invention discloses an anticorrosion liquid for metal surface corrosion resistance, which comprises the following raw materials: silane coupling agent, deionized water and methanol. The invention also discloses a preparation method of the anticorrosion liquid, which comprises the following steps: putting the deionized water in a container, and stirring; adding the methanol into the container, and stirring evenly; and adding the silane coupling agent into the container, and stirring evenly to obtain the anticorrosion liquid. The invention also an anticorrosion treatment method of a metal surface, which comprises the following steps: putting the anticorrosion liquid in a container for later use; evenly attaching the anticorrosion liquid onto the metal surface subjected to cleaning treatment, and carrying out spin-drying to form an anticorrosion film; putting the metal with the anticorrosion film in a 120-240 DEG C drying oven, and drying for 25-35 minutes; and taking out the metal to finish the anticorrosion treatment of the metal surface. The anticorrosion time of the metal subjected to anticorrosion treatment of the anticorrosion liquid is obviously increased, and the rustless time in 5% neutral salt mist is up to 12 hours.
Description
Technical field
The present invention relates to a kind of metallic surface rot-resistant preservative solution, preparation method and method for anticorrosion treatment of being used for, belong to the antiseptic technical field in metallic surface.
Background technology
Anti-corrosion of metal through taking various means, is protected the metallic surface of easy corrosion exactly, reaches the purpose that prolongs its work-ing life, adopts usually that physics is anticorrosion, the method for electrochemical anti-corrosive, Chemical Preservation.
The anticorrosion metallic surface protective cover that is employed in of physics; Make metal and corrosive medium isolation on every side; Prevent the corrosive purpose thereby reach, as: machine oil, Vaseline, paint or corrosion resistant non-metallic material such as covering enamel, plastics on the steel piece surfaces coated, or with methods such as plating, hot dip, spraying platings; Plate the metal that one deck is difficult for being corroded at steel surface, like zinc, tin, chromium, nickel etc.Electrochemical anti-corrosive utilizes galvanic principles to carry out the protection of metal, manages to eliminate the galvanic cell reaction that causes galvanic etching.Chemical Preservation is then adopted and is made the metallic surface generate the fine and closely woven stable oxide film of one deck, as forming the fine and closely woven black ferroferric oxide film of one deck etc. on steel pieces such as machine parts, firearms surface.
Above-mentioned each method respectively has advantage, adopts concrete anti-corrosion measure according to the practical application needs, but all shortcoming is arranged respectively, like: anticorrosion its preservative coat sticking power of physics not by force, wiped easily, causes local anticorrosion failure; The electrochemical anti-corrosive treating processes is loaded down with trivial details, and required equipment is many, and operator also need specialty; Chemical Preservation operation is more convenient, but existing Chemical Preservation method or raw material is many, cost is high, or effect is relatively poor.
Generally speaking, all there are different problems in above-mentioned traditional anti-corrosion method and aseptic production; Particularly the anticorrosion time of black ferroferric oxide film falls short of; To pass through the metal of handling, to place concentration be 5% neutral salt spray, and the non-corrosive time was generally 2～3 hours, and effect is not ideal enough.
The patent No. discloses a kind of non-electrolytic metal corrosion preventing paint that is mixed and is formed by A agent, B agent, three kinds of components of C agent for the patent of invention of " ZL 200310106171.4 "; A agent component and weight percent: flakey zinc metal sheet and the aluminium flake 15%～23% of sheet footpath≤40 μ m; Water-soluble lower boiling organic alcohols compound 12.5%～22%; Nonionogenic tenside 0.05%～0.15%, adhesion promoter 1.0%～4%.Its B agent component and weight percent: molybdate 3.5%～6%, tungstate 1%～1.5%, inhibiter 0.01%～0.06%, sequestrant 1.5%～2.5%, deionized water 0.5%～64%, the C component is 0.05%～0.5% tackifier.Not only raw material is many, cost is high for this protective system, and operating procedure is complicated difficult to grasp.
Summary of the invention
The object of the invention provides the long-time rot-resistant of a kind of ability to be used for metallic surface rot-resistant preservative solution and preparation method thereof and method of use with regard to being in order to address the above problem.
In order to achieve the above object, the present invention has adopted following technical scheme:
The metallic surface rot-resistant preservative solution that is used for according to the invention comprises following raw material: silane coupling agent, deionized water and methyl alcohol.
Silane coupling agent is to be processed under the catalysis of platinum chloric acid by trichlorosilane (HSiCl3) and the unsaturated olefin that has a reactive group, gets through alcoholysis again, and its normality is a liquid.Silane coupling agent has KH550, KH560, KH570, KH792, DL602, these several kinds of models of DL171 in that China is domestic.
As preferably, the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: (0.5～1.5): (0.05～0.2).
Particularly, the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: 1: 0.1; Perhaps, the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: 0.5: 0.1,1: 1.5: 0.1,1: 0.5: 0.05,1: 0.5: 0.2,1: 1: 0.05 or 1: 1: 0.15.
The preparation method of preservative solution according to the invention; May further comprise the steps: ionized water is removed in container in (1), puts into the magnetic stirring bar that cleans up with deionized water, begins to stir; Stirring velocity is controlled at and makes deionized water form whirlpool, but can not spill container; (2) in container, add methyl alcohol, stir; (3) in container, add silane coupling agent, stir, promptly get preservative solution.
Method for anticorrosion treatment according to the invention promptly utilizes preservative solution according to the invention that antiseptic method is carried out in the metallic surface, and may further comprise the steps: it is subsequent use in container that preservative solution is got in (1); (2) preservative solution evenly is attached to the metallic surface after the purifying treatment, dries the back and form corrosion prevention film; The metal that (3) will be attached with corrosion prevention film places 120～240 ℃ baking oven to toast 25～35 minutes; (4) take out metal, accomplish this anti-corrosion treatment of metal surfaces.
Further; In the said step (2); Preservative solution evenly is attached to before the metallic surface after the purifying treatment, in preservative solution, adds pH value to 4.5～5.5 that Glacial acetic acid min. 99.5 is regulated preservative solution, preservative solution becomes limpid at this moment; Restir hydrolysis 10 minutes～3 hours, and then preservative solution evenly is attached to the metallic surface after the purifying treatment; The method of said purifying treatment is: with the metal degreasing polishing, cross water then, with the hydrochloric acid soln rust cleaning, after water, cross water with deionized water at last again.
As preferably, in the said step (2), in preservative solution, add the pH value to 5 that acetic acid is regulated preservative solution, stir hydrolysis 30 minutes.
In the said step (3), the metal that will be attached with corrosion prevention film earlier places not in the heated oven, and then the temperature in the baking oven is begun to warm to 120～240 ℃ from room temperature.
As optimal selection, the volume ratio of each raw material is in the said preservative solution: silane coupling agent: deionized water: methyl alcohol=1: 1: 0.1.
Beneficial effect of the present invention is:
The anticorrosion time of utilizing preservative solution of the present invention to carry out antiseptic metal significantly increases; Through test; To pass through metal that preservative solution of the present invention handled by method for anticorrosion treatment of the present invention, to place concentration be 5% neutral salt spray; The non-corrosive time can reach 12 hours, is significantly higher than the metal handled by conventional black ferriferrous oxide film method with 2～3 hours non-corrosive time under the condition.
Embodiment
Below in conjunction with specific embodiment the present invention is made further specific descriptions:
As embodiment the present invention is made further specific descriptions with concrete experiment below:
Prepare preservative solution according to the following steps: the 50ml deionized water is measured in beaker with graduated cylinder in (1); Put into the magnetic stirring bar that cleans up with deionized water, begin to stir, stirring velocity is controlled at and makes solution form whirlpool; But can not spill beaker; In this process, the operator need be with last time property plastic glove, in order to avoid bring contaminating impurity solution into; (2) stir in beaker with glue head dropper Dropwise 5 ml methyl alcohol; (3) with stirring in the 50ml silane coupling agent adding beaker, the muddiness of solution becomes promptly gets preservative solution at this moment.
Following step is for to carry out antiseptic process with above-mentioned preservative solution to the surface of test button, owing to using above-mentioned preservative solution, so following step is right after above-mentioned steps (3):
(4) drop by drop drip 20 acetic acid in the preservative solution that in beaker, stirs, this moment, the pH value with the preservative solution in the beaker was adjusted to about 5, and solution becomes is limpid at this moment; (5) prevent the influence of other factors with the freshness protection package sealed beaker, stir hydrolysis after 30 minutes, the test button after the purifying treatment is dipped in the preservative solution after the hydrolysis 5 minutes, and (this time can change; As long as need the preservative solution of thickness at surface attachment one deck of test button); The method of purifying treatment test button is: with the metal degreasing polishing, cross water then, eliminate rust with hydrochloric acid soln; After water, cross water with deionized water at last; (6) take out test button and drying back formation corrosion prevention film; The test button that (7) will be attached with corrosion prevention film places 120～240 ℃ baking oven to toast 25～35 minutes; In this process; The test button that will be attached with corrosion prevention film earlier places not in the heated oven, and then the temperature in the baking oven is begun to warm to 120～240 ℃ from room temperature; (8) take out test button, accomplish this anti-corrosion treatment of metal surfaces, the corrosion prevention film that its surface forms becomes bright, transparent, compacts and is close to the test button surface.
Cooled afterwards test button is put into the salt fog machine and placed concentration is 5% neutral salt spray, and its non-corrosive time can reach 12 hours.
The preservative solution that above-mentioned experiment is adopted is the when optimum method for anticorrosion treatment of optimum material volume; In addition; The volume feed and the method for anticorrosion treatment that also have other; Its effect and above-mentioned comparison slightly descend, and with the form of form other volume feed and method for anticorrosion treatment are introduced below:
Can find out from last table; After the preservative solution that adopts volume feed according to the invention and working method to produce carries out rotproofing to the metallic surface; Its anticorrosion time (being the non-corrosive time) in 5% neutral salt spray is all more than 10 hours; The longest at 12 hours, be significantly higher than the metal handled by conventional black ferriferrous oxide film method with 2～3 hours non-corrosive time under the condition.
Claims (10)
1. one kind is used for metallic surface rot-resistant preservative solution, it is characterized in that: comprise following raw material: silane coupling agent, deionized water and methyl alcohol.
2. the metallic surface rot-resistant preservative solution that is used for according to claim 1, it is characterized in that: the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: (0.5～1.5): (0.05～0.2).
3. the metallic surface rot-resistant preservative solution that is used for according to claim 2, it is characterized in that: the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: 1: 0.1.
4. the metallic surface rot-resistant preservative solution that is used for according to claim 2, it is characterized in that: the volume ratio of each raw material is: silane coupling agent: deionized water: methyl alcohol=1: 0.5: 0.1,1: 1.5: 0.1,1: 0.5: 0.05,1: 0.5: 0.2,1: 1: 0.05 or 1: 1: 0.15.
5. the preparation method of a preservative solution as claimed in claim 1; It is characterized in that: may further comprise the steps: ionized water is removed in container in (1); Put into the magnetic stirring bar that cleans up with deionized water; Begin to stir, stirring velocity is controlled at and makes deionized water form whirlpool, but can not spill container; (2) in container, add methyl alcohol, stir; (3) in container, add silane coupling agent, stir, promptly get preservative solution.
6. one kind is utilized the described preservative solution of claim 1 that antiseptic method is carried out in the metallic surface, and it is characterized in that: may further comprise the steps: it is subsequent use in container that preservative solution is got in (1); (2) preservative solution evenly is attached to the metallic surface after the purifying treatment, dries the back and form corrosion prevention film; The metal that (3) will be attached with corrosion prevention film places 120～240 ℃ baking oven to toast 25～35 minutes; (4) take out metal, accomplish this anti-corrosion treatment of metal surfaces.
7. according to claim 6 antiseptic method is carried out in the metallic surface; It is characterized in that: in the said step (2); Preservative solution evenly is attached to before the metallic surface after the purifying treatment, in preservative solution, adds pH value to 4.5～5.5 that Glacial acetic acid min. 99.5 is regulated preservative solution, preservative solution becomes limpid at this moment; Restir hydrolysis 10 minutes～3 hours, and then preservative solution evenly is attached to the metallic surface after the purifying treatment; The method of said purifying treatment is: with the metal degreasing polishing, cross water then, with the hydrochloric acid soln rust cleaning, after water, cross water with deionized water at last again.
8. according to claim 7 antiseptic method is carried out in the metallic surface, it is characterized in that: in the said step (2), in preservative solution, add the pH value to 5 that acetic acid is regulated preservative solution, stirring hydrolysis 30 minutes.
9. according to claim 6 antiseptic method is carried out in the metallic surface; It is characterized in that: in the said step (3); The metal that will be attached with corrosion prevention film earlier places not in the heated oven, and then the temperature in the baking oven is begun to warm to 120～240 ℃ from room temperature.
10. described antiseptic method is carried out in the metallic surface according to claim 6,7,8 or 9, it is characterized in that: the volume ratio of each raw material is in the said preservative solution: silane coupling agent: deionized water: methyl alcohol=1: 1: 0.1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103494625A CN102827504A (en) | 2012-09-18 | 2012-09-18 | Anticorrosion liquid for metal surface corrosion resistance, and preparation method and anticorrosion treatment method thereof |
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| CN2012103494625A CN102827504A (en) | 2012-09-18 | 2012-09-18 | Anticorrosion liquid for metal surface corrosion resistance, and preparation method and anticorrosion treatment method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017500A (en) * | 2015-08-14 | 2015-11-04 | 广东德丽雅漆业有限公司 | Preparation method of environment-friendly metal antiseptic silane modified waterborne polyurethane resin and antiseptic treatment method |
| CN106129881A (en) * | 2016-07-18 | 2016-11-16 | 安徽得润电气技术有限公司 | A kind of sinking box-type substation |
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| WO2004099465A1 (en) * | 2003-05-09 | 2004-11-18 | Degussa Ag | Composition for coating metals to protect against corrosion |
| CN101033363A (en) * | 2007-04-10 | 2007-09-12 | 大连工业大学 | Environment-friendly type galvanizing metal surface treating agent |
| CN101885945A (en) * | 2010-07-02 | 2010-11-17 | 浙江大学 | Metal surface silanization treatment method and its application |
| CN102094194A (en) * | 2009-12-09 | 2011-06-15 | 中国科学院金属研究所 | Silanization treatment method before coating of steel piece |
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2012
- 2012-09-18 CN CN2012103494625A patent/CN102827504A/en active Pending
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| WO2004099465A1 (en) * | 2003-05-09 | 2004-11-18 | Degussa Ag | Composition for coating metals to protect against corrosion |
| CN101033363A (en) * | 2007-04-10 | 2007-09-12 | 大连工业大学 | Environment-friendly type galvanizing metal surface treating agent |
| CN102094194A (en) * | 2009-12-09 | 2011-06-15 | 中国科学院金属研究所 | Silanization treatment method before coating of steel piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105017500A (en) * | 2015-08-14 | 2015-11-04 | 广东德丽雅漆业有限公司 | Preparation method of environment-friendly metal antiseptic silane modified waterborne polyurethane resin and antiseptic treatment method |
| CN106129881A (en) * | 2016-07-18 | 2016-11-16 | 安徽得润电气技术有限公司 | A kind of sinking box-type substation |
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Application publication date: 20121219 |