CN112553611A - Stainless steel passivator and preparation method and application thereof - Google Patents
Stainless steel passivator and preparation method and application thereof Download PDFInfo
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- CN112553611A CN112553611A CN202011424087.7A CN202011424087A CN112553611A CN 112553611 A CN112553611 A CN 112553611A CN 202011424087 A CN202011424087 A CN 202011424087A CN 112553611 A CN112553611 A CN 112553611A
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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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
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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
- C23C22/60—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 alkaline aqueous solutions with pH greater than 8
- C23C22/62—Treatment of iron or alloys based thereon
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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
- C23C22/68—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 solutions with pH between 6 and 8
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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- Chemical Treatment Of Metals (AREA)
Abstract
The disclosure belongs to the technical field of stainless steel surface treatment, and particularly provides a stainless steel passivator and a preparation method and application thereof. The stainless steel passivator comprises 1-50g/L of water-soluble polymer, 0.5-20g/L of silane coupling agent, 1-20 g/L of additive, 50-500g/L of stabilizer, a proper amount of pH regulator and the balance of water, and the pH value of the stainless steel passivator is 4-12. The stainless steel passivator can obtain a protective film with good corrosion resistance on the surface of stainless steel, does not reduce the brightness of the surface of the stainless steel, and has little influence on the environment.
Description
Technical Field
The disclosure belongs to the technical field of stainless steel surface treatment, and particularly provides a stainless steel passivator and a preparation method and application thereof.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Stainless steel finds good application in the prior art due to its non-corrosive nature. However, stainless steel still has the defects of corrosion, pitting corrosion, discoloration and the like in a corrosive medium, so that the stainless steel needs to be subjected to protective treatment. In the prior art, nitric acid, hydrofluoric acid, chromic acid and the like are generally adopted for passivation treatment, and the environmental impact is large.
In order to solve this problem, the prior art discloses a chromium-free stainless steel passivator and a passivation method using the same, wherein the passivator uses several organic acids, nitrates and sulfates. The organic acid has certain corrosivity to the stainless steel, reduces stainless steel brightness. Nitrates and sulfates have adverse effects on the environment.
The invention adopts water-soluble polymers, organic additives, silane coupling agents, alcohol and other organic reagents as raw materials, provides the stainless steel organic passivator, can obtain a protective film with good corrosion resistance on the surface of stainless steel, obviously improves the corrosion resistance of the stainless steel, and does not reduce the brightness of the surface of the stainless steel. The components of the invention do not contain organic acid which affects the brightness of the stainless steel, do not contain strong acid, chromate, fluoride, nitrite and other strong corrosive and toxic substances, and have little influence on the environment.
Disclosure of Invention
In one or more embodiments of the present disclosure, a stainless steel passivating agent is provided, which includes 1-50g/L of a water-soluble polymer, 0.5-20g/L of a silane coupling agent, 1-20 g/L of an additive, 50-500g/L of a stabilizer, a proper amount of a pH adjusting agent, and the balance of water, wherein the pH value of the stainless steel passivating agent is 4-12.
In one or some embodiments of the present disclosure, a method for preparing the stainless steel passivator is provided, which includes the following steps:
dissolving a specified amount of water-soluble polymer, a silane coupling agent, an additive and a stabilizer in deionized water respectively, and fully mixing and stirring the mixture until the mixture is uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
In one or some embodiments of the present disclosure, there is provided a stainless steel passivation method, comprising the steps of:
degreasing, cleaning and soaking a stainless steel part in the stainless steel passivator, standing, taking out and drying.
One or some of the above technical solutions have the following advantages or beneficial effects:
1) according to the stainless steel passivating agent, water-soluble polymers, silane coupling agents and other organic compounds are compounded to form a protective film on the surface of stainless steel, so that the corrosion resistance of the stainless steel can be effectively improved, and meanwhile, the components of the stainless steel passivating agent disclosed by the invention do not contain organic acid which influences the brightness of the stainless steel, so that the brightness of the surface of the stainless steel is not reduced. Does not contain strong corrosive and toxic substances such as strong acid, chromate, fluoride, nitrite and the like, and has small environmental pollution.
2) The stainless steel passivator disclosed by the disclosure is simple in preparation method, only needs to weigh and mix all the components, and is suitable for industrial production.
3) The method disclosed by the invention only needs to soak the stainless steel in the passivating agent and adjust the standing and drying time, and is simple in operation method, low in technical requirement on operators and suitable for industrial application.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the disclosure without making any creative effort, shall fall within the protection scope of the disclosure.
In one or more embodiments of the present disclosure, a stainless steel passivating agent is provided, which includes 1-50g/L of a water-soluble polymer, 0.5-20g/L of a silane coupling agent, 1-20 g/L of an additive, 50-500g/L of a stabilizer, a proper amount of a pH adjusting agent, and the balance of water, wherein the pH value of the stainless steel passivating agent is 4-12.
The water-soluble polymer compound of the present disclosure is also referred to as a water-soluble resin or a water-soluble polymer. Can be dissolved or dissolved in water to form an aqueous solution or dispersion. The molecular structure of the water-soluble polymer contains a large number of hydrophilic groups, and the coupling agent is combined with water, additives and other components and Fe of stainless steel3+Form a network structure, and attach to the surface of the stainless steel to achieve the passivation purpose.
Preferably, the water-soluble polymer is at least one of polyethylene glycol, polyacrylic acid and polyvinyl alcohol.
Preferably, the silane coupling agent is at least one of 3-aminopropyltriethoxysilane and 3-glycidoxypropyltrimethoxysilane;
or the stabilizer is at least one of ethanol and glycerol. Ethanol and glycerol are silane hydrolysis stabilizers.
Preferably, the additive is at least one of hydrogen peroxide and sodium m-nitrobenzenesulfonate; the hydrogen peroxide and the sodium m-nitrobenzenesulfonate mainly play a role in accelerating passivation.
Or the pH regulator is acetic acid or ammonia water. In the using process, the pH test is carried out on the mixed passivator, the acid is adjusted, the acetic acid is added, the alkali is adjusted, and the ammonia water is added.
Preferably, the solution comprises 20g/L of polyethylene glycol, 10g/L of polyacrylic acid, 5g/L of polyvinyl alcohol, 15g/L of 3-aminopropyltriethoxysilane, 5g/L of 3-glycidoxypropyltrimethoxysilane, 5g/L of hydrogen peroxide, 5g/L of m-nitrobenzenesulfonate, 400g/L of ethanol and the balance of deionized water, wherein the pH value of the solution is 5.
This is the composition described in example 1 of the present disclosure, which has a good passivation effect on stainless steel.
In one or some embodiments of the present disclosure, a method for preparing the stainless steel passivator is provided, which includes the following steps:
dissolving a specified amount of water-soluble polymer, a silane coupling agent, an additive and a stabilizer in deionized water respectively, and fully mixing and stirring the mixture until the mixture is uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
Preferably, all the raw materials are added and mixed at once at the time of mixing.
The stainless steel passivator disclosed by the disclosure is simple in preparation method, only needs to weigh and mix all the components, and is suitable for industrial production.
In one or some embodiments of the present disclosure, there is provided a stainless steel passivation method, comprising the steps of:
degreasing, cleaning and soaking a stainless steel part in the stainless steel passivator or the product prepared by the preparation method, standing, taking out and drying.
The method disclosed by the invention only needs to soak the stainless steel in the passivating agent and adjust the standing and drying time, and is simple in operation method, low in technical requirement on operators and suitable for industrial application.
Preferably, the standing temperature is 10-60 ℃, and the standing time is 1-30 minutes;
preferably, the drying temperature is 50-180 ℃ after the material is taken out, and the drying time is 5-40 minutes.
In one or some embodiments of the disclosure, the application of the stainless steel passivating agent or the product prepared by the preparation method in stainless steel passivation is provided.
Preferably, the stainless steel passivator or the product prepared by the preparation method can be applied to various stainless steels. The method is particularly suitable for Cr13 type low-chromium stainless steel with low corrosion resistance.
According to the eighth copper sulfate test method in the YY/T0149-2006 stainless steel corrosion resistance test method, the stainless steel sample passivated by the stainless steel passivating agent and the original stainless steel sample not passivated are placed in a copper sulfate solution, the time of the surface starting to appear red copper color is respectively recorded, and the times of the passivated sample to the un-passivated sample for appearing red copper color are calculated to represent the corrosion resistance of the passivated film. The longer the bronzing occurs, the higher the fold increase, indicating the better the passivation effect.
Example 1
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 10 parts of polyacrylic acid, 15 parts of polyvinyl alcohol 5, 3-aminopropyltriethoxysilane, 5 parts of 3-glycidoxypropyltrimethoxysilane, 5 parts of hydrogen peroxide, 5 parts of sodium m-nitrobenzenesulfonate, 400 parts of ethanol and the balance of deionized water, wherein the pH value of the solution is 5.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
2) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 20 ℃, and the treatment time is 10 minutes; taking out the mixture, and drying at 100 ℃ for 40 minutes. The corrosion resistance is improved by 5 times.
Example 2
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): polyethylene glycol 25, 3-aminopropyltriethoxysilane 15, 3-aminopropyltriethoxysilane 5, hydrogen peroxide 5, sodium m-nitrobenzenesulfonate 5, ethanol 400 and the balance of deionized water, wherein the pH value of the solution is 10.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
2) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 50 ℃, and the treatment time is 5 minutes; taking out the mixture, and drying at 150 ℃ for 20 minutes. The corrosion resistance is improved by 3 times.
Example 3
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 10 parts of polyacrylic acid, 15 parts of polyvinyl alcohol 5, 3-aminopropyltriethoxysilane, 5 parts of 3-aminopropyltriethoxysilane, 10 parts of hydrogen peroxide, 400 parts of glycerol and the balance of deionized water, wherein the pH value of the solution is 8.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
2) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance is improved by 4 times.
Example 4
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): polyethylene glycol 1, polyacrylic acid 1, polyvinyl alcohol 1, 3-aminopropyltriethoxysilane 15, 3-aminopropyltriethoxysilane 5, hydrogen peroxide 20, glycerol 500, and the balance of deionized water, wherein the pH value of the solution is 8.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
3) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance is improved by 3 times.
Example 5
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 10 parts of polyacrylic acid, 10 parts of polyvinyl alcohol, 1 part of 3-aminopropyltriethoxysilane, 1 part of hydrogen peroxide, 50 parts of glycerol and the balance of deionized water, wherein the pH value of the solution is 8.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
2) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance is improved by 3 times.
Example 6
The embodiment provides a stainless steel passivation method, which comprises the following steps:
1) preparing a stainless steel passivator:
the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 5 parts of polyacrylic acid, 10 parts of polyvinyl alcohol, 3-aminopropyltriethoxysilane, 2 parts of 3-aminopropyltriethoxysilane, 5 parts of hydrogen peroxide, 1 part of glycerol, and the balance of deionized water, wherein the pH value of the solution is 8.
Weighing the components, respectively dissolving the components in deionized water, and fully mixing and stirring the components until the components are uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
3) Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance is improved by 3 times.
Comparative example 1
This example provides a stainless steel passivation method, which differs from example 1 in that the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 20 parts of polyacrylic acid, 20 parts of polyvinyl alcohol, 15 parts of 3-aminopropyltriethoxysilane, 10 parts of 3-glycidoxypropyltrimethoxysilane, 5 parts of hydrogen peroxide, 5 parts of sodium m-nitrobenzenesulfonate, 400 parts of ethanol and the balance of deionized water, wherein the pH value of the solution is 5.
Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance was not improved.
Comparative example 2
This example provides a stainless steel passivation method, which differs from example 1 in that the stainless steel passivator consists of the following components in concentration (g/L): 20 parts of polyethylene glycol, 10 parts of polyacrylic acid, 15 parts of polyvinyl alcohol 5, 3-aminopropyltriethoxysilane, 5 parts of 3-glycidoxypropyltrimethoxysilane, 20 parts of hydrogen peroxide, 10 parts of sodium m-nitrobenzenesulfonate, 400 parts of ethanol and the balance of deionized water, wherein the pH value of the solution is 5.
Degreasing, cleaning and soaking stainless steel in the stainless steel passivator, wherein the treatment temperature is 10 ℃, and the treatment time is 30 minutes; taking out the mixture, and drying at 80 ℃ for 40 minutes. The corrosion resistance is reduced to half of the original one.
The disclosure of the present invention is not limited to the specific embodiments, but rather to the specific embodiments, the disclosure is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The stainless steel passivator is characterized by comprising 1-50g/L of water-soluble polymer, 0.5-20g/L of silane coupling agent, 1-20 g/L of additive, 50-500g/L of stabilizer, a proper amount of pH regulator and the balance of water, wherein the pH value of the stainless steel passivator is 4-12.
2. The stainless steel passivator of claim 1, wherein the water soluble polymer is at least one of polyethylene glycol, polyacrylic acid, polyvinyl alcohol.
3. The stainless steel passivating agent according to claim 1, wherein the silane coupling agent is at least one of 3-aminopropyltriethoxysilane and 3-glycidoxypropyltrimethoxysilane.
4. The stainless steel passivator of claim 1 wherein the stabilizer is at least one of ethanol and glycerol.
5. The stainless steel passivator of claim 1, wherein the additive is at least one of hydrogen peroxide and sodium m-nitrobenzenesulfonate.
6. The stainless steel passivator of claim 1 wherein the pH adjuster is acetic acid, ammonia.
7. The method for preparing the stainless steel passivator of any one of claims 1-6, characterized by comprising the steps of:
dissolving a specified amount of water-soluble polymer, a silane coupling agent, an additive and a stabilizer in deionized water respectively, and fully mixing and stirring the mixture until the mixture is uniform; adjusting to a specified value by using a pH regulator, and adding water to a specified volume.
8. The method for preparing the stainless steel passivator according to claim 7, wherein all raw materials are added and mixed at one time during mixing.
9. A stainless steel passivation method is characterized by comprising the following steps:
degreasing, cleaning and soaking a stainless steel part in the stainless steel passivator of any one of claims 1 to 6 or a product prepared by the preparation method of claims 7 and 8, standing, taking out and drying.
Preferably, the standing temperature is 10-60 ℃, and the standing time is 1-30 minutes;
preferably, the drying temperature is 50-180 ℃ after the material is taken out, and the drying time is 5-40 minutes.
10. Use of the stainless steel passivator of any one of claims 1 to 6 or the products of the preparation process of claims 7 and 8 for the passivation of stainless steel.
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| CN202011424087.7A CN112553611A (en) | 2020-12-08 | 2020-12-08 | Stainless steel passivator and preparation method and application thereof |
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| CN202011424087.7A CN112553611A (en) | 2020-12-08 | 2020-12-08 | Stainless steel passivator and preparation method and application thereof |
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| WO2008041976A2 (en) * | 2006-09-29 | 2008-04-10 | Momentive Performance Materials Inc. | Storage stable composition of partial and/or complete condensate of hydrolyzable organofunctional silane |
| CN101289741A (en) * | 2007-04-18 | 2008-10-22 | 宝山钢铁股份有限公司 | Chromium-free passivating liquid for surface treatment of electrogalvanized steel plate and use method thereof |
| CN102070927A (en) * | 2011-01-22 | 2011-05-25 | 安徽工业大学 | Water-based surface treatment agent for color coating pretreatment of galvanized plates |
| CN107460465A (en) * | 2017-08-21 | 2017-12-12 | 佛山市顺德区美硕金属表面技术有限公司 | Silane finish and the method for preparing silane finish |
-
2020
- 2020-12-08 CN CN202011424087.7A patent/CN112553611A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008041976A2 (en) * | 2006-09-29 | 2008-04-10 | Momentive Performance Materials Inc. | Storage stable composition of partial and/or complete condensate of hydrolyzable organofunctional silane |
| CN101289741A (en) * | 2007-04-18 | 2008-10-22 | 宝山钢铁股份有限公司 | Chromium-free passivating liquid for surface treatment of electrogalvanized steel plate and use method thereof |
| CN102070927A (en) * | 2011-01-22 | 2011-05-25 | 安徽工业大学 | Water-based surface treatment agent for color coating pretreatment of galvanized plates |
| CN107460465A (en) * | 2017-08-21 | 2017-12-12 | 佛山市顺德区美硕金属表面技术有限公司 | Silane finish and the method for preparing silane finish |
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