CN103087627B - A kind of metal aluminum alloy silane surface treatment agent and preparation method thereof - Google Patents
A kind of metal aluminum alloy silane surface treatment agent and preparation method thereof Download PDFInfo
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- CN103087627B CN103087627B CN201210550921.6A CN201210550921A CN103087627B CN 103087627 B CN103087627 B CN 103087627B CN 201210550921 A CN201210550921 A CN 201210550921A CN 103087627 B CN103087627 B CN 103087627B
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Abstract
The invention discloses a kind of metal aluminum alloy silane surface treatment agent and preparation method thereof, the mixed solution formulated by following component, Silane coupling agent KH550, film-forming resin, citric acid, diethanolamine, propylene glycol, polyvinyl acetate emulsion, polyvinyl alcohol, polydimethylsiloxane, catechol, oxalic acid and isopropylcarbinol; The present invention adopts Silane coupling agent KH550 as major ingredient, and isopropylcarbinol is solvent, with low cost, add citric acid and multiple different auxiliary agent in raw material simultaneously, improve treatment time and the treatment temp for the treatment of agent, silanization treating agent process metal works of the present invention, form polyacid rete on surface, this rete has strong adhesion, without cavity, split sunken, dense uniform, the feature that polarized current density is little, and production process environmental protection, pollution-free.
Description
Technical field
The present invention relates to field of metal surface treatment, be specifically related to a kind of metal aluminum alloy silane surface treatment agent and preparation method thereof.
Background technology
In field of metal surface treatment, although traditional phosphate conversion and chromating process for treating surface can obtain good effect, but containing zinc in the waste liquid of discharging in treating processes, manganese, nickel, the carcinogenic substances such as heavy metal ion and nitrite such as chromium, environmental pollution is very serious, and metallic surface silanization treatment technology is due to the material of not hurm involved environment, energy consumption in production process is low, technical applications is extensive, be considered to be expected to replace phosphate conversion process and chromating process, that recent development direction is protected separately in metallic surface, the rete of the surface of workpiece formation of solution of silane process in existing technology, Density inhomogeneity, there is cavity, split sunken, with metallic object hold up put forth effort not strong.
Summary of the invention
The object of the invention is to provide a kind of metal aluminum alloy silane surface treatment agent and preparation method thereof, the present invention adopts silanization treating agent process metal works, polyacid rete is formed on surface, this rete has strong adhesion, without cavity, split sunken, dense uniform, the feature that polarized current density is little, and production process environmental protection, pollution-free.
The technical solution used in the present invention is as follows for achieving the above object:
A kind of metal aluminum alloy silane surface treatment agent, it is characterized in that, the mixed solution formulated by following component, in every 500 grams of mixed solutions, the weight (gram) of each component is: Silane coupling agent KH550 12-14, film-forming resin 1.3-1.5, citric acid 1.7-1.9, diethanolamine 1.1-1.5, propylene glycol 10-15, polyvinyl acetate emulsion 7-9, polyvinyl alcohol 0.7-0.9, polydimethylsiloxane 1.3-1.8, catechol 0.9-1.1, oxalic acid 3-5 and isopropylcarbinol 93-98, surplus are deionized water.
Described metal aluminum alloy silane surface treatment agent, it is characterized in that, the mixed solution formulated by following component, in every 500 grams of mixed solutions, the weight (gram) of each component is: Silane coupling agent KH550 13, film-forming resin 1.4, citric acid 1.8, diethanolamine 1.3, propylene glycol 12, polyvinyl acetate emulsion 8, polyvinyl alcohol 0.8, polydimethylsiloxane 1.5, catechol 1, oxalic acid 4 and isopropylcarbinol 95, surplus are deionized water.
The preparation method of described metal aluminum alloy silane surface treatment agent, is characterized in that comprising the following steps:
(1) film resin is prepared into:
By formulation weight (gram): urea 1-3, anilinomethyl triethoxysilane 1.5-2.5, oxalic acid 3-5, ferric oxide 0.1-0.2, Potassium Persulphate 0.1-0.2, poly(oxyethylene glycol) 400 1-2, Starso 0.7-0.9 deionized water 10-12; Preparation method: first by urea deionized water dissolving, be heated to 90-100 DEG C, add anilinomethyl triethoxysilane Starso, ferric oxide, Potassium Persulphate again, stirring reaction 40-60 minute, be cooled to 60-70 DEG C, add other feed composition of film-forming resin again, stirring reaction 30-45 minute and get final product;
(2), get about 2/3 deionized water in feed composition, be heated to 75-85 DEG C, add other feed composition such as film-forming resin, Silane coupling agent KH550, stirring reaction 1-2 hour;
(3), add remaining deionized water constant volume, mix, adjust pH to be 5-6 with oxalic acid, to obtain final product.
Silane surface treatment agent of the present invention, first metallic matrix directly can be entered in treatment agent of the present invention after degreasing, washing and process, after process, metal base surface can obtain one deck coating, then can carry out washing or do not wash lower one technique-oven dry according to process requirements, the operations such as powder spraying can be carried out after oven dry, be: working temperature: room temperature 25 DEG C that pure water washes specific conductivity < 50 μ s/cm at the processing parameter for the treatment of processes, the treatment time: 200-350 second.
Compared to the prior art the present invention, has the following advantages:
(1) the present invention adopts Starso, urea, silane etc. as film-forming resin reaction raw materials, is polymerized, and can form stronger protective membrane in metallic surface; Enhance the corrosion resistance nature of metallic matrix.
(2) contain inhibiter in raw material, increase the anticorrosion ability of protective membrane.
(3), formed protective film dense uniform, polarized current density is less.
(4) thickness (< 150nm) is protected to be significantly less than traditional phosphating solutions film (10 ~ 15 μm).
Embodiment
Embodiment 1: metal aluminum alloy silane surface treatment agent, the mixed solution formulated by following component, in every 500 grams of mixed solutions, the weight (gram) of each component is: Silane coupling agent KH550 13, film-forming resin 1.4, citric acid 1.8, diethanolamine 1.3, propylene glycol 12, polyvinyl acetate emulsion 8, polyvinyl alcohol 0.8, polydimethylsiloxane 1.5, catechol 1, oxalic acid 4 and isopropylcarbinol 95, surplus are deionized water.
The preparation method of described metal aluminum alloy silane surface treatment agent, is characterized in that comprising the following steps:
(1) film resin is prepared into:
By formulation weight (gram): urea 3, anilinomethyl triethoxysilane 2.5, oxalic acid 5, ferric oxide 0.1, Potassium Persulphate 0.2, poly(oxyethylene glycol) 400 2, Starso 0.9 deionized water 12; Preparation method: first by urea deionized water dissolving, be heated to 90-100 DEG C, add anilinomethyl triethoxysilane Starso, ferric oxide, Potassium Persulphate again, stirring reaction 40-60 minute, be cooled to 60-70 DEG C, add other feed composition of film-forming resin again, stirring reaction 30-45 minute and get final product;
(2), get about 2/3 deionized water in feed composition, be heated to 75-85 DEG C, add other feed composition such as film-forming resin, Silane coupling agent KH550, stirring reaction 1-2 hour;
(3), add remaining deionized water constant volume, mix, adjust pH to be 5-6 with oxalic acid, to obtain final product.
In preparation, each raw material group can synchronously expand in proportion.
With silane surface treatment agent process aluminium alloy plate material of the present invention, by this material lateral dissection, carry out spray test, agents useful for same to be concentration be 5% sodium chloride solution, test period 300 hours, measure the bubbling width formed in line of cut side, result bubbling width is 0; With silane surface treatment agent process metallic substance of the present invention, this material being immersed in concentration is in the sodium chloride solution of 5%, and soak 300 hours, material surface is substantially unchanged, and soak 400 hours, minute quantity rust staining appears in edge.
Claims (2)
1. a metal aluminum alloy silane surface treatment agent, it is characterized in that, the mixed solution formulated by following component, in every 500 grams of mixed solutions, the weight of each component is: Silane coupling agent KH550 12-14g, film-forming resin 1.3-1.5g, citric acid 1.7-1.9g, diethanolamine 1.1-1.5g, propylene glycol 10-15g, polyvinyl acetate emulsion 7-9g, polyvinyl alcohol 0.7-0.9g, polydimethylsiloxane 1.3-1.8g, catechol 0.9-1.1g, oxalic acid 3-5g and isopropylcarbinol 93-98g, surplus are deionized water;
The preparation method of described metal aluminum alloy silane surface treatment agent comprises the following steps:
(1) film resin is prepared into: by formulation weight: urea 1-3g, anilinomethyl triethoxysilane 1.5-2.5g, oxalic acid 3-5g, ferric oxide 0.1-0.2g, Potassium Persulphate 0.1-0.2g, poly(oxyethylene glycol) 400 1-2g, Starso 0.7-0.9g, deionized water 10-12g; Preparation method: first by urea deionized water dissolving, be heated to 90-100 DEG C, add anilinomethyl triethoxysilane, Starso, ferric oxide, Potassium Persulphate again, stirring reaction 40-60 minute, be cooled to 60-70 DEG C, add other feed composition of film-forming resin again, stirring reaction 30-45 minute and get final product;
(2), get 2/3 deionized water in feed composition, be heated to 75-85 DEG C, add other feed composition such as film-forming resin, Silane coupling agent KH550, stirring reaction 1-2 hour;
(3), add remaining deionized water constant volume, mix, adjust pH to be 5-6 with oxalic acid, to obtain final product.
2. metal aluminum alloy silane surface treatment agent according to claim 1, it is characterized in that, the mixed solution formulated by following component, in every 500 grams of mixed solutions, the weight of each component is: Silane coupling agent KH550 13g, film-forming resin 1.4g, citric acid 1.8g, diethanolamine 1.3g, propylene glycol 12g, polyvinyl acetate emulsion 8g, polyvinyl alcohol 0.8g, polydimethylsiloxane 1.5g, catechol 1g, oxalic acid 4g and isopropylcarbinol 95g, surplus are deionized water.
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| CN104099008A (en) * | 2014-06-19 | 2014-10-15 | 锐展(铜陵)科技有限公司 | Anti-grease aluminium alloy surface treatment agent |
| CN105694618A (en) * | 2016-03-04 | 2016-06-22 | 芜湖市金宇石化设备有限公司 | Treating agent for coating crane tube |
| CN105642527A (en) * | 2016-03-04 | 2016-06-08 | 芜湖市金宇石化设备有限公司 | Coating process for fluid loading and unloading arm |
| CN105647307A (en) * | 2016-03-04 | 2016-06-08 | 芜湖市金宇石化设备有限公司 | Method for preparing loading arm coating treatment agents |
| CN114045491A (en) * | 2021-12-14 | 2022-02-15 | 无锡邦得机械有限公司 | Surface processing method for aluminum alloy casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0182116A2 (en) * | 1984-11-13 | 1986-05-28 | American Cyanamid Company | Surface trated metallic filaments |
| CN101351574A (en) * | 2005-12-28 | 2009-01-21 | 杰富意钢铁株式会社 | Electromagnetic steel sheet having insulating coating film and method for producing same |
| CN102482782A (en) * | 2009-09-30 | 2012-05-30 | 费德罗-莫格尔公司 | Substrate And Rubber Composition And Method Of Making The Composition |
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| JP4402211B2 (en) * | 1999-08-20 | 2010-01-20 | 大日本印刷株式会社 | Polymer battery |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0182116A2 (en) * | 1984-11-13 | 1986-05-28 | American Cyanamid Company | Surface trated metallic filaments |
| CN101351574A (en) * | 2005-12-28 | 2009-01-21 | 杰富意钢铁株式会社 | Electromagnetic steel sheet having insulating coating film and method for producing same |
| CN102482782A (en) * | 2009-09-30 | 2012-05-30 | 费德罗-莫格尔公司 | Substrate And Rubber Composition And Method Of Making The Composition |
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