CN106048576A - Washing-free chromium-free passivating agent preparation method - Google Patents
Washing-free chromium-free passivating agent preparation method Download PDFInfo
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- CN106048576A CN106048576A CN201610718318.2A CN201610718318A CN106048576A CN 106048576 A CN106048576 A CN 106048576A CN 201610718318 A CN201610718318 A CN 201610718318A CN 106048576 A CN106048576 A CN 106048576A
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- chrome
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- water washing
- fluoride
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Chemical Treatment Of Metals (AREA)
Abstract
The invention belongs to the technical field of metal surface treatment and discloses a washing-free chromium-free passivating agent preparation method. The method includes steps: proportionally well mixing a nanoscale titanium compound, fluoride, an organic resin polymer, a mixture of silanol and polysiloxane, fluorine containing acid, a complexing agent, a corrosion inhibitor and deionized water, and adjusting pH value of the passivating agent to obtain a washing-free chromium-free passivating agent. By adoption of the chromium-free passivating agent prepared according to the method, a pretreatment process of aluminum products can be simplified into steps of degreasing, washing, washing, passivating, drying and spraying, two washing procedures can be saved as compared with a traditional process, production process is evidently simplified, sewage discharge is reduced, and accordingly energy saving and environment friendliness are realized while corrosion resistance and impact resistance of workpieces are improved.
Description
Technical field
The present invention relates to a kind of passivator, be specifically related to the preparation method of a kind of Non-water washing chrome-free tanning agent, belong to metal
Technical field of surface.
Background technology
Aluminum alloy materials is the second largest metalloid material that in industry, usage amount is only second to iron and steel.Normal electrode due to aluminum
Current potential is more negative, be in use susceptible to corrosion, aluminium alloy generally require before use through corresponding surface process with
Meet it to the adaptability of environment and safety.Such as, before the japanning of existing aluminum veneer, section bar, aluminum coiled material, place need to be passivated
Reason, in traditional passivation pre-treating technology, comprises the following steps: defat---washing----wash---Passivation Treatment----water
Wash---washing----dry----spraying, treatment process is more, in particular for through repeatedly water washing operations, complex steps, processing
Cumbersome.
Summary of the invention
The problem existed for above-mentioned prior art, the present invention provides the preparation method of a kind of Non-water washing chrome-free tanning agent,
Prepare chrome-free tanning agent and can effectively save water-washing process when Treatment of Metal Surface, simplify production technology.
To achieve these goals, the preparation method of a kind of Non-water washing chrome-free tanning agent that the present invention uses, including following
Step, by the compound of nano grade titanium, fluoride, organic resin polymer, silanol and the mixture of polysiloxanes, fluorine-containing
Acid, chelating agent, corrosion inhibiter and deionized water are uniformly mixed according to a ratio, and regulate passivator pH value, i.e. can get the Chrome-free of Non-water washing
Passivator；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, 1-30%；Fluoride, 5-50%；Organic tree
Lipopolymer, 10-30%；Silanol and the mixture of polysiloxanes, 1-15%；Fluoric-containing acid, 1-2.5%；Chelating agent, 1-20%；Slow
Erosion agent, 0.1-5%；Remaining is deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia, ammonium hydrogen carbonate
At least one；
The Mixing ratio by weight example of described silanol and polysiloxanes is 5:2, and described silanol is three (t-butoxy) silanol.
As improvement, the compound of described nano grade titanium is nano titanium oxide, and the consumption of described nano titanium oxide is
15%。
As improvement, described fluoride is the one in ammonium acid fluoride, ammonium fluoride, Fluohydric acid., and the consumption of fluoride is
20%。
As improvement, described organic resin polymer is methyl trichlorosilane, and the consumption of described methyl trichlorosilane is
30%。
As improvement, described fluoric-containing acid is the one in hexafluosilicic acid, fluoboric acid, fluoaluminic acid, and the consumption of described fluoric-containing acid is
2.5%。
As improvement, described chelating agent is dimercaptopropanol, BAL, and the consumption of described dimercaptopropanol, BAL is 5%.
As improvement, described corrosion inhibiter is one or more combinations in phosphine carboxylic acid, coloured glaze base benzothiazole, benzotriazole,
The consumption of described corrosion inhibiter is 2.5%.
It addition, present invention also offers a kind of use being prepared Non-water washing chrome-free tanning agent by the described method of any of the above-described item
Method, this passivator can be coated on the surface of pending material by the either type in soaking, spray, smearing, and coating completes
After, pending material is dried or naturally dries, described naturally dry under room temperature air-dry.
As improvement, drying temperature is 70 DEG C.
Compared with prior art, the preparation method of a kind of Non-water washing chrome-free tanning agent that the present invention provides, prepare chrome-free tanning agent
Possess the excellent anti-corrosion protection performance to metal of traditional chromaking washing process and the adhesion performance of coating, and effectively increase
Strong paint and the adhesive force of base material；Use the chrome-free tanning agent of the present invention, the pre-treating technology of aluminium product can be reduced to: be de-
Fat washing washing Passivation Treatment dries spraying, relatively can save twice washing compared with traditional technique, hence it is evident that
Simplify production technology, reduce sewage discharge, energy-conserving and environment-protective, improve corrosion resistance and the impact resistance of workpiece simultaneously.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention of greater clarity, below by embodiment, the present invention is entered
Row further describes.However, it should be understood that specific embodiment described herein is only in order to explain the present invention, and need not
In limiting the scope of the present invention.Unless otherwise defined, all of technical term used herein and scientific terminology with belong to this
The implication that the those skilled in the art of invention are generally understood that is identical, the art used the most in the description of the invention
Language is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.
Embodiment one
The preparation method of a kind of Non-water washing chrome-free tanning agent, comprises the following steps, and by the compound of nano grade titanium, fluoride, has
The mixture of machine resinous polymer, silanol and polysiloxanes, fluoric-containing acid, chelating agent, corrosion inhibiter and deionized water are mixed by proportioning
Close uniformly, regulate passivator pH value 6-7, i.e. can get the chrome-free tanning agent of Non-water washing；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, 1-30%；Fluoride, 5-50%；Organic tree
Lipopolymer, 10-30%；Silanol and the mixture of polysiloxanes, 1-15%；Fluoric-containing acid, 1-2.5%；Chelating agent, 1-20%；Slow
Erosion agent, 0.1-5%；Remaining is deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia or bicarbonate
Ammonium；
Wherein, the compound of described nano grade titanium is nano titanium oxide, and the consumption of described nano titanium oxide is 15%；
Described fluoride is ammonium acid fluoride, and the consumption of fluoride is 20%；
Described organic resin polymer is methyl trichlorosilane, and the consumption of described methyl trichlorosilane is 30%；
The amount of mixture 5% of described silanol and polysiloxanes；The mixed proportion of described silanol and polysiloxanes is 5:2；
Described fluoric-containing acid is hexafluosilicic acid, and the consumption of described fluoric-containing acid is 2.5%；
Described chelating agent is dimercaptopropanol, BAL, and the consumption of described dimercaptopropanol, BAL is 5%；
Described corrosion inhibiter is coloured glaze base benzothiazole, and the consumption of described corrosion inhibiter is 2.5%；
This passivator can be coated on the surface of pending material by the either type in soaking, spray, smearing, and coating completes
After, pending material is dried or naturally dries, described naturally dry under room temperature air-dry.
Performance test is carried out: impulsive force, more than 50KG to this embodiment prepares chrome-free tanning agent；Hundred lattice tests, one-level
Above；Resistance to neutral salt spray test is according to different powder or paint, and the highest salt spray test can be more than 2000h.
Embodiment two
The preparation method of a kind of Non-water washing chrome-free tanning agent, comprises the following steps, and by the compound of nano grade titanium, fluoride, has
The mixture of machine resinous polymer, silanol and polysiloxanes, fluoric-containing acid, chelating agent, corrosion inhibiter and deionized water are mixed by proportioning
Close uniformly, regulate passivator pH value 6-7, i.e. can get the chrome-free tanning agent of Non-water washing；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, and 10%；Fluoride, 25%；Organic resin gathers
Compound, 30%；Silanol and the mixture of polysiloxanes, 10%；Fluoric-containing acid, 2.5%；Chelating agent, 1%；Corrosion inhibiter, 5%；Remaining be
Deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia or bicarbonate
Ammonium；
This passivator can be coated on the surface of pending material by the either type in soaking, spray, smearing, and coating time can
According to needing regulation in actual production, after having coated, drying pending material or naturally dry, drying temperature is 70
℃。
Embodiment three
The preparation method of a kind of Non-water washing chrome-free tanning agent, comprises the following steps, and by the compound of nano grade titanium, fluoride, has
The mixture of machine resinous polymer, silanol and polysiloxanes, fluoric-containing acid, chelating agent, corrosion inhibiter and deionized water are mixed by proportioning
Close uniformly, regulate passivator pH value 6-7, i.e. can get the chrome-free tanning agent of Non-water washing；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, and 20%；Fluoride, 25%；Organic resin gathers
Compound, 10%；Silanol and the mixture of polysiloxanes, 15%；Fluoric-containing acid, 2.5%；Chelating agent, 2.5%；Corrosion inhibiter, 2%；Remaining
For deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia or bicarbonate
Ammonium；
This passivator can be coated on the surface of pending material by the either type in soaking, spray, smearing, and coating time can
According to actual production needs regulation, after having coated, pending material dried or naturally dries, described naturally drying
For air-drying under room temperature.
Embodiment four
The preparation method of a kind of Non-water washing chrome-free tanning agent, comprises the following steps, and by the compound of nano grade titanium, fluoride, has
The mixture of machine resinous polymer, silanol and polysiloxanes, fluoric-containing acid, chelating agent, corrosion inhibiter and deionized water are mixed by proportioning
Close uniformly, regulate passivator pH value 6-7, i.e. can get the chrome-free tanning agent of Non-water washing；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, and 30%；Fluoride, 5%；Organic resin is polymerized
Thing, 10%；Silanol and the mixture of polysiloxanes, 5%；Fluoric-containing acid, 2.5%；Chelating agent, 12.5%；Corrosion inhibiter, 5%；Remaining be
Deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia or bicarbonate
Ammonium；
This passivator can be coated on the surface of pending material by the either type in soaking, spray, smearing, and coating completes
After, pending material is dried or naturally dries.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent or the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (7)
1. the preparation method of a Non-water washing chrome-free tanning agent, it is characterised in that comprise the following steps, by the chemical combination of nano grade titanium
Thing, fluoride, organic resin polymer, silanol and the mixture of polysiloxanes, fluoric-containing acid, chelating agent, corrosion inhibiter and go from
Sub-water is uniformly mixed according to a ratio, and regulates passivator pH value, i.e. can get the chrome-free tanning agent of Non-water washing；
Wherein, component and the mixed proportion of employing are as follows: the compound of nano grade titanium, 1-30%；Fluoride, 5-50%；Organic tree
Lipopolymer, 10-30%；Silanol and the mixture of polysiloxanes, 1-15%；Fluoric-containing acid, 1-2.5%；Chelating agent, 1-20%；Slow
Erosion agent, 0.1-5%；Remaining is deionized water；
Regulation passivator PH acidity-basicity regulator, acidity-basicity regulator is sodium hydroxide, potassium hydroxide, ammonia, ammonium hydrogen carbonate
At least one；
The mixed proportion of described silanol and polysiloxanes is 5:2.
The preparation method of a kind of Non-water washing chrome-free tanning agent the most as claimed in claim 1, it is characterised in that described nano grade titanium
Compound be nano titanium oxide, the consumption of described nano titanium oxide is 15%.
The preparation method of a kind of Non-water washing chrome-free tanning agent the most as claimed in claim 1, it is characterised in that described fluoride is
One in ammonium acid fluoride, ammonium fluoride, Fluohydric acid., the consumption of fluoride is 20%.
The preparation method of a kind of Non-water washing chrome-free tanning agent the most as claimed in claim 1, it is characterised in that described organic resin
Polymer is methyl trichlorosilane, and the consumption of described methyl trichlorosilane is 30%.
The preparation method of a kind of Non-water washing chrome-free tanning agent the most as claimed in claim 1, it is characterised in that described fluoric-containing acid is
One in hexafluosilicic acid, fluoboric acid, fluoaluminic acid, the consumption of described fluoric-containing acid is 2.5%.
The chrome-free tanning agent of a kind of Non-water washing the most as claimed in claim 1, it is characterised in that described chelating agent is dimercapto third
Alcohol, the consumption of described dimercaptopropanol, BAL is 5%.
The preparation method of a kind of Non-water washing chrome-free tanning agent the most as claimed in claim 1, it is characterised in that described corrosion inhibiter is
One or more combinations in phosphine carboxylic acid, coloured glaze base benzothiazole, benzotriazole, the consumption of described corrosion inhibiter is 2.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610718318.2A CN106048576A (en) | 2016-08-25 | 2016-08-25 | Washing-free chromium-free passivating agent preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610718318.2A CN106048576A (en) | 2016-08-25 | 2016-08-25 | Washing-free chromium-free passivating agent preparation method |
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| CN106048576A true CN106048576A (en) | 2016-10-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702364A (en) * | 2017-03-16 | 2017-05-24 | 冯志海 | Chromate-free passivator for aluminium product, and preparation method thereof |
| CN107511312A (en) * | 2017-07-21 | 2017-12-26 | 云南三元德隆铝业有限公司 | A kind of fluorocarbon-sprayed method of aluminium alloy extrusions |
| CN114855153A (en) * | 2022-06-13 | 2022-08-05 | 安徽光铧帝业化学有限公司 | Washing-free chromium-free treatment process before coating of aluminum profile |
Citations (1)
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| CN104561970A (en) * | 2014-12-31 | 2015-04-29 | 苏州禾川化学技术服务有限公司 | Corrosion-resistant magnesium aluminum alloy chromium-free passivation solution |
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2016
- 2016-08-25 CN CN201610718318.2A patent/CN106048576A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104561970A (en) * | 2014-12-31 | 2015-04-29 | 苏州禾川化学技术服务有限公司 | Corrosion-resistant magnesium aluminum alloy chromium-free passivation solution |
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| 严宝霞: "《临床药学各论》", 30 September 1999, 北京医科大学出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702364A (en) * | 2017-03-16 | 2017-05-24 | 冯志海 | Chromate-free passivator for aluminium product, and preparation method thereof |
| CN107511312A (en) * | 2017-07-21 | 2017-12-26 | 云南三元德隆铝业有限公司 | A kind of fluorocarbon-sprayed method of aluminium alloy extrusions |
| CN114855153A (en) * | 2022-06-13 | 2022-08-05 | 安徽光铧帝业化学有限公司 | Washing-free chromium-free treatment process before coating of aluminum profile |
| CN114855153B (en) * | 2022-06-13 | 2023-10-03 | 安徽光铧帝业化学有限公司 | Non-washing chromium-free treatment process before coating aluminum profile |
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