CN103911606A - Phosphorus-free conversion film processing agent and preparation method thereof - Google Patents
Phosphorus-free conversion film processing agent and preparation method thereof Download PDFInfo
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- CN103911606A CN103911606A CN201210593856.5A CN201210593856A CN103911606A CN 103911606 A CN103911606 A CN 103911606A CN 201210593856 A CN201210593856 A CN 201210593856A CN 103911606 A CN103911606 A CN 103911606A
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- conversion film
- phosphorus
- treating agent
- preparation
- processing agent
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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
- 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
Abstract
The invention provides a phosphorus-free conversion film processing agent and a preparation method thereof. The formula of the phosphorus-free conversion film processing agent comprises, by weight, 2.5-5% of aluminium nitrate, 5-10% of a hexafluorozirconic acid aqueous solution with a concentration of 45%, 0.7-1.5% of a nitric acid aqueous solution with a concentration of 47%, 1.4-2.5% of sodium nitrate, 2-5% of silica sol, 2-5% of liquid silane and the balance deionized water, wherein liquid silane is obtained by adding an acetic acid aqueous solution into aminosilane for hydrolysis. The preparation method of the phosphorus-free conversion film processing agent comprises: mixing all raw materials in the formula, heating to 40-50 DEG C, stirring for 2-3 h and naturally cooling. The phosphorus-free conversion film processing agent is capable of forming a layer of a nanometer ceramic coating on a clean metal surface, forming a conversion film on the surfaces of steel, zinc and aluminium, substantially improving the corrosion resistance of the metal coating and prolonging the corrosion resistant time of the metal coating.
Description
Technical field
The invention belongs to technical field, relate to a kind of without phosphorus conversion film treating agent and preparation method thereof.
Background technology
Existing Coating Pretreatment technology mainly comprises the Coating Pretreatment technology of the types such as zinc system, iron system, zinc calcium system, zinc-nickel manganese three component system.With regard to these technology itself, comparative maturity.But along with social development, the requirement of environment protection and energy-saving and emission-reduction is more and more higher, under this background, traditional Coating Pretreatment technology, just manifests obvious defect.First, in these surface treatment agent prescriptions, contain a large amount of phosphorus, be disposed to river, river, Hu Zhonghui and cause serious eutrophication, contain the heavy metals such as zinc, nickel, manganese simultaneously, the load of wastewater treatment is very large.Secondly, in the time using these products, all need to be heated to certain temperature, energy-output ratio is large.In addition, can produce certain by product (sediment) when surface treatment, can there is stifled nozzle phenomenon in spray, increase handling cost while processing.
Through constantly exploring, seek process modification, without phosphorus treatment agent arises at the historic moment under this background.
Summary of the invention
The object of this invention is to provide one and can form one deck nano ceramic coat on clean metal surface, can form conversion film on iron and steel, zinc and aluminium surface, can significantly improve the corrosion resistance nature of metallic coating, extend it and be subject to without phosphorus conversion film treating agent of etching time and preparation method thereof.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of without phosphorus conversion film treating agent, wherein each component and weight percent (i.e. formula) are as follows:
Wherein, described liquid silane can be made by oneself, adds acetic acid aqueous solution hydrolysis to obtain by outsourcing aminosilane.Other raw material all can obtain by outsourcing.
Above-mentioned without phosphorus conversion film treating agent, dilutes by 5% when use.
The preparation method of above-mentioned without phosphorus conversion film treating agent is as follows:
In filling a prescription, all raw materials mix, and are heated to 40-50 DEG C, stir 2-3 hour, naturally cooling and get final product.
Beneficial effect of the present invention:
Without phosphorus conversion film treating agent of the present invention be a kind of be basic surface treatment chemical based on fluorine zirconic acid, it can form in clean metallic surface one deck nano ceramic coat.
This without phosphorus conversion film treating agent is a kind of reactive Coating Pretreatment agent, and it can form conversion film on iron and steel, zinc and aluminium surface.
This without phosphorus conversion film treating agent does not contain heavy metal, without phosphoric acid salt, without any organic composition.
This without phosphorus conversion film treating agent can significantly improve the corrosion resistance nature of metallic coating, extends it and is subject to etching time.
Without phosphorus conversion film treating agent of the present invention has following features:
1 is different with Phosphating Solution in the past, and it is completely not phosphorous, removed the heavy metals such as the zinc that contains in Phosphating Solution, nickel, manganese simultaneously, so greatly alleviate the load of wastewater treatment, reduce the generation of waste, are a kind of novel environment friendly medicaments.
2, normal temperature uses and without heating, is saving energy at normal temperature type medicament truly.
3, suitability is very wide, is applicable to the combination treatment of the various metals such as cold-reduced sheet, galvanized sheet, aluminium and aluminium zinc.
4, the surface treatment time very short, conventionally at 30～120 seconds.And do not need to do surface adjustment processing, can shorten operation.
5, surface treatment does not almost have sediment, and spray is processed stifled nozzle phenomenon is no longer occurred, and has reduced handling cost.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but the invention is not restricted to these embodiments.
Embodiment 1
A kind of without phosphorus conversion film treating agent, fills a prescription as follows
Wherein, liquid silane is to be 36% acetic acid aqueous solution by add concentration in the silane coupling agent (chemical name is: APTES) of outsourcing, adjust solution pH value to 2-3, the hydrolysate that stirring at normal temperature obtained after 1 hour, this hydrolysate can dissolve each other with other material in without phosphorus conversion film treating agent formula system of the present invention.
The preparation method of above-mentioned without phosphorus conversion film treating agent is as follows:
In filling a prescription, all raw materials mix, and are heated to 40 DEG C, stir naturally cooling and get final product 3 hours.
The result of use of above-mentioned without phosphorus conversion film treating agent:
The conversion film uniform and delicate that this without phosphorus conversion film treating agent forms on iron and steel, zinc and aluminium surface, has increased the sticking power (adhesion 1 grade) of metallic coating in metallic surface, has significantly improved the corrosion resistance nature (salt-fog test exceedes 500 hours) of metallic coating.
Embodiment 2
A kind of without phosphorus conversion film treating agent, fills a prescription as follows
Wherein, liquid silane is to be 36% acetic acid aqueous solution by add concentration in the silane coupling agent (APTES) of outsourcing, adjust solution pH value to 2-3, the hydrolysate that stirring at normal temperature obtained after 1 hour, this hydrolysate can dissolve each other with other material in without phosphorus conversion film treating agent formula system of the present invention.
The preparation method of above-mentioned without phosphorus conversion film treating agent is as follows:
In filling a prescription, all raw materials mix, and are heated to 50 DEG C, stir naturally cooling and get final product 2 hours.
The result of use of above-mentioned without phosphorus conversion film treating agent:
The conversion film uniform and delicate that this without phosphorus conversion film treating agent forms on iron and steel, zinc and aluminium surface, has increased the sticking power (adhesion 1 grade) of metallic coating in metallic surface, has significantly improved the corrosion resistance nature (salt-fog test exceedes 500 hours) of metallic coating.
Embodiment 3
A kind of without phosphorus conversion film treating agent, fills a prescription as follows
Wherein, liquid silane is to be 36% acetic acid aqueous solution by add concentration in the silane coupling agent (APTES) of outsourcing, adjust solution pH value to 2-3, the hydrolysate that stirring at normal temperature obtained after 1 hour, this hydrolysate can dissolve each other with other material in without phosphorus conversion film treating agent formula system of the present invention.
The preparation method of above-mentioned without phosphorus conversion film treating agent is as follows:
In filling a prescription, all raw materials mix, and are heated to 45 DEG C, stir naturally cooling and get final product 2.5 hours.
The result of use of above-mentioned without phosphorus conversion film treating agent:
The conversion film uniform and delicate that this without phosphorus conversion film treating agent forms on iron and steel, zinc and aluminium surface, has increased the sticking power (adhesion 1 grade) of metallic coating in metallic surface, has significantly improved the corrosion resistance nature (salt-fog test exceedes 500 hours) of metallic coating.
Claims (4)
1. a without phosphorus conversion film treating agent, is characterized in that, wherein each component and weight percent are as follows:
。
2. without phosphorus conversion film treating agent according to claim 1, is characterized in that, described liquid silane adds acetic acid aqueous solution hydrolysis to obtain by aminosilane.
3. according to a preparation method for the without phosphorus conversion film treating agent described in claim 1-2, it is characterized in that, in filling a prescription, all raw materials mix, and are heated to 40-50 DEG C, stir 2-3 hour, naturally cooling and get final product.
4. the preparation method of without phosphorus conversion film treating agent according to claim 3, it is characterized in that, described liquid silane makes by the following method: in silane coupling agent APTES, adding concentration is 36% acetic acid aqueous solution, adjust solution pH value to 2-3, stirring at normal temperature 1 hour and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210593856.5A CN103911606A (en) | 2012-12-31 | 2012-12-31 | Phosphorus-free conversion film processing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210593856.5A CN103911606A (en) | 2012-12-31 | 2012-12-31 | Phosphorus-free conversion film processing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103911606A true CN103911606A (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210593856.5A Pending CN103911606A (en) | 2012-12-31 | 2012-12-31 | Phosphorus-free conversion film processing agent and preparation method thereof |
Country Status (1)
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| CN (1) | CN103911606A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176171A (en) * | 2015-10-21 | 2015-12-23 | 合肥东方节能科技股份有限公司 | Environmental-protection low-temperature silane solution for corrosion inhibition and preparation method thereof |
| RU2622076C1 (en) * | 2015-12-28 | 2017-06-09 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский химико-технологический университет имени Д. И. Менделеева" (РХТУ им. Д. И. Менделеева) | Composition for forming adhesion oxide-zirconic coating on steel surface and method of its application |
| CN106835109A (en) * | 2017-01-18 | 2017-06-13 | 帝业化学品（上海）有限公司 | Environment-friendly type metal surface pre-treatment coating |
| CN107447210A (en) * | 2017-06-13 | 2017-12-08 | 泾县信达工贸有限公司 | A kind of process of surface treatment of electric rice cooker heated disk |
| CN107587126A (en) * | 2017-07-19 | 2018-01-16 | 合肥普庆新材料科技有限公司 | A kind of nano ceramics silane complex film layer transforming agent containing graphene oxide |
-
2012
- 2012-12-31 CN CN201210593856.5A patent/CN103911606A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176171A (en) * | 2015-10-21 | 2015-12-23 | 合肥东方节能科技股份有限公司 | Environmental-protection low-temperature silane solution for corrosion inhibition and preparation method thereof |
| RU2622076C1 (en) * | 2015-12-28 | 2017-06-09 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский химико-технологический университет имени Д. И. Менделеева" (РХТУ им. Д. И. Менделеева) | Composition for forming adhesion oxide-zirconic coating on steel surface and method of its application |
| CN106835109A (en) * | 2017-01-18 | 2017-06-13 | 帝业化学品（上海）有限公司 | Environment-friendly type metal surface pre-treatment coating |
| CN107447210A (en) * | 2017-06-13 | 2017-12-08 | 泾县信达工贸有限公司 | A kind of process of surface treatment of electric rice cooker heated disk |
| CN107587126A (en) * | 2017-07-19 | 2018-01-16 | 合肥普庆新材料科技有限公司 | A kind of nano ceramics silane complex film layer transforming agent containing graphene oxide |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140709 |