CN102146560B - Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent - Google Patents
Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent Download PDFInfo
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- CN102146560B CN102146560B CN201110065828A CN201110065828A CN102146560B CN 102146560 B CN102146560 B CN 102146560B CN 201110065828 A CN201110065828 A CN 201110065828A CN 201110065828 A CN201110065828 A CN 201110065828A CN 102146560 B CN102146560 B CN 102146560B
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Abstract
The invention discloses a rare earth-silanization treatment agent used before metal cathode electrophoresis. Each liter of treatment agent consists of the following raw materials by weight: 10 to 50 grams of silane coupling agent KH-560, 1 to 3.5 grams of sodium molybdate, 0.1 to 0.4 gram of sodium silicate, 0.4 to 0.8 gram of lanthanum acetate, 20 to 40 grams of ethanol, 1 to 1.5 grams of isomeric alcohol polyoxyethylene polyoxypropylene ether, 0.1 to 0.4 gram of ethylene diamine tetraacetic acid, and the balance of deionized water. When the rare earth-silanization treatment agent is used for metal surface silanization treatment, a silane-silicon molybdenum heteropolyacid rare earth lanthanum hybrid film is formed on the surface of the metal, and the obtained silane-silicon molybdenum heteropolyacid rare earth lanthanum hybrid film has strong corrosion resistance, compactness, uniformity, good adhesive force and good ''self-repair'' performance.
Description
Technical field
The present invention relates to the metallic surface silanization process field, be specifically related to preceding rare earth-silanization treating agent of a kind of metallic cathode electrophoresis and compound method thereof.
Background technology
It is to be that staple is carried out the surface-treated process to metal with the organosilane aqueous solution that metallic surface silanization is handled.The silylanization processing is compared with conventional phosphatizing has following a plurality of advantage: no harmful heavy metal ion, and not phosphorous, need not to heat.The silane treatment process does not produce sediment, and the treatment time is short, controls easy.Treatment step is few, can save table and transfer operation, and tank liquor is reusable.Effectively improve the sticking power of paint to base material.But multiple base materials such as collineation processing iron plate, galvanized sheet, aluminium sheet.But with regard to present domestic technique, not very ripe, especially in the selection of silane and auxiliary agent, also have a lot of not enough places.
Metallic surface silanization is handled and to be had broad application prospects, but the silane film that prior art became exists that corrosion resistance is strong, film forming is inhomogeneous, do not possess perhaps defective such as " selfreparing " poor performance of " selfreparing " performance, has limited its development.
Summary of the invention
The invention provides preceding rare earth-silanization treating agent of a kind of metallic cathode electrophoresis and compound method thereof.Adopting rare earth-silanization treating agent of the present invention to carry out metallic surface silanization handles; Form silane-silicon-molybdenum heteropoly acid Rare Earth Lanthanum hybridized film in the metallic surface; The silane of gained-silicon-molybdenum heteropoly acid Rare Earth Lanthanum hybridized film, corrosion resistance is strong, film forming is fine and close evenly, sticking power is good, " selfreparing " performance is good.
The technical scheme that the present invention adopts is following:
Rare earth-silanization treating agent before the metallic cathode electrophoresis, it is characterized in that: the weight of each component of constitutive material of its every liter treatment agent is:
The compound method of rare earth-silanization treating agent is characterized in that before the described metallic cathode electrophoresis, specifically may further comprise the steps:
(1) it is even ethanol to be added deionized water for stirring;
(2) silane coupling agent KH-560 is joined during ethanol that step (1) prepares dissolves, stir, and the PH=4-6 of regulator solution, make solution 1;
(3) Sodium orthomolybdate and water glass are dissolved in the deionized water respectively, and mix, behind the re-adjustment PH=2-3, again lanthanum acetate is added wherein dissolving mixing, make solution 2;
(4) solution 1 is mixed with solution 2, add isomery alcohol polyoxyethylene poly-oxygen propylene aether and EDTA Disodium, fully stir and constant volume the PH=4-6 of last regulator solution;
(5) leave standstill hydrolysis 24 hours under the mixing solutions room temperature, get final product.
The compound method of rare earth-silanization treating agent before the described metallic cathode electrophoresis is characterized in that: the pH value that comes regulator solution in the solution process for preparation with acetate or ammoniacal liquor.
Beneficial effect of the present invention:
Adopting rare earth-silanization treating agent of the present invention to carry out metallic surface silanization handles; Form silane-silicon-molybdenum heteropoly acid Rare Earth Lanthanum hybridized film in the metallic surface; The silane of gained-silicon-molybdenum heteropoly acid Rare Earth Lanthanum hybridized film, corrosion resistance is strong, film forming is fine and close evenly, sticking power is good, " selfreparing " performance is good.
Embodiment
Prepare the preceding rare earth-silanization treating agent of 1 liter of metallic cathode electrophoresis, the weight of its each component of constitutive material is:
The compound method of rare earth-silanization treating agent before the described metallic cathode electrophoresis specifically may further comprise the steps:
(1) it is even ethanol to be added deionized water for stirring;
(2) silane coupling agent KH-560 is joined during ethanol that step (1) prepares dissolves, stir, and the PH=4-6 of regulator solution, make solution 1;
(3) Sodium orthomolybdate and water glass are dissolved in the deionized water respectively, and mix, behind the re-adjustment PH=2-3, again lanthanum acetate is added wherein dissolving mixing, make solution 2;
(4) solution 1 is mixed with solution 2, add isomery alcohol polyoxyethylene poly-oxygen propylene aether and EDTA Disodium, fully stir and constant volume the PH=4-6 of last regulator solution;
(5) leave standstill hydrolysis 24 hours under the mixing solutions room temperature, get final product.
Claims (2)
1. rare earth-silanization treating agent before the metallic cathode electrophoresis, it is characterized in that: the weight of each component of constitutive material of its every liter treatment agent is:
2. the compound method of rare earth-silanization treating agent is characterized in that before the metallic cathode electrophoresis as claimed in claim 1, specifically may further comprise the steps:
(1) it is even ethanol to be added deionized water for stirring;
(2) silane coupling agent KH-560 is joined in the ethanolic soln that step (1) prepares, stir, and the pH=4-6 of regulator solution, make solution 1;
(3) Sodium orthomolybdate and water glass are dissolved in the deionized water respectively, and mix, behind the re-adjustment pH=2-3, again lanthanum acetate is added wherein dissolving mixing, make solution 2;
(4) solution 1 is mixed with solution 2, add isomery alcohol polyoxyethylene poly-oxygen propylene aether and EDTA Disodium, fully stir and constant volume the pH=4-6 of last regulator solution;
(5) leave standstill hydrolysis 24 hours under the mixing solutions room temperature, get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065828A CN102146560B (en) | 2011-03-18 | 2011-03-18 | Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065828A CN102146560B (en) | 2011-03-18 | 2011-03-18 | Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent |
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| Publication Number | Publication Date |
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| CN102146560A CN102146560A (en) | 2011-08-10 |
| CN102146560B true CN102146560B (en) | 2012-09-26 |
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| CN201110065828A Expired - Fee Related CN102146560B (en) | 2011-03-18 | 2011-03-18 | Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533104B (en) * | 2011-12-28 | 2015-06-10 | 蚌埠市钰诚五金工贸有限公司 | Silanization processing agent for metal piece individually protection |
| CN102534595A (en) * | 2011-12-28 | 2012-07-04 | 蚌埠市钰诚五金工贸有限公司 | Preparation process of metal surface protective treatment fluid |
| CN102534601A (en) * | 2011-12-28 | 2012-07-04 | 蚌埠市钰诚五金工贸有限公司 | Preparation process of metal surface protective treatment solution |
| CN102534602A (en) * | 2011-12-29 | 2012-07-04 | 蚌埠市钰诚五金工贸有限公司 | Finishing agent for metal surface protection |
| CN102560469B (en) * | 2011-12-29 | 2015-07-22 | 蚌埠市钰诚五金工贸有限公司 | Metal surface silylation protection treating agent |
| CN102534597A (en) * | 2012-02-14 | 2012-07-04 | 蚌埠市钰诚五金工贸有限公司 | Metal surface silanization protection treating fluid |
| CN102993870B (en) * | 2012-12-04 | 2014-12-10 | 安徽省宿州市龙华机械制造有限公司 | Modified silanized metal surface pre-treating agent containing polyoxyethylene oleate and preparation method thereof |
| CN102993943B (en) * | 2012-12-04 | 2015-01-14 | 安徽省宿州市龙华机械制造有限公司 | Modified silanized metal surface pre-treating agent containing octylphenol polyoxyethylene ether and preparation method thereof |
| CN103014687B (en) * | 2012-12-04 | 2014-10-29 | 安徽省宿州市龙华机械制造有限公司 | Glycerol trilaurate-containing modified silanization metal surface pretreatment agent and preparation method thereof |
| CN102977773B (en) * | 2012-12-04 | 2014-12-31 | 安徽省宿州市龙华机械制造有限公司 | Modified silane surface pretreating agent containing polyving akohol and preparation method of modified silane surface pretreating agent |
| CN102977774B (en) * | 2012-12-04 | 2015-10-14 | 安徽省宿州市龙华机械制造有限公司 | A kind of modified silanized surface pretreatment agent containing octadecane alcohol radical Soxylat A 25-7 and preparation method thereof |
| CN104404492B (en) * | 2014-12-24 | 2017-07-11 | 湖南金裕化工有限公司 | Chromium-free passivation liquid, preparation method and its application method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476118A (en) * | 2009-01-21 | 2009-07-08 | 湖南大学 | Universal metallic surface silanization treating agent, preparation and use thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7553514B2 (en) * | 2006-08-28 | 2009-06-30 | 3M Innovative Properties Company | Antireflective article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476118A (en) * | 2009-01-21 | 2009-07-08 | 湖南大学 | Universal metallic surface silanization treating agent, preparation and use thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘倞 等.金属表面硅烷化防护处理及其研究现状.《中国腐蚀与防护学报》.2006,第26卷(第1期),第59-64页. * |
| 胡虎 等.金属表面硅烷化处理在汽车零部件行业中的应用.《电镀与涂饰》.2009,第28卷(第9期),第70-73,75页. * |
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Owner name: BENGBU YUCHENG NEW MATERIAL SCIENCE + TECHNOLOGY C Free format text: FORMER OWNER: BENGBU YUCHENG HARDWARE INDUSTRY AND TRADE CO., LTD. Effective date: 20130425 |
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