CN102534597A - Metal surface silanization protection treating fluid - Google Patents
Metal surface silanization protection treating fluid Download PDFInfo
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- CN102534597A CN102534597A CN2012100321639A CN201210032163A CN102534597A CN 102534597 A CN102534597 A CN 102534597A CN 2012100321639 A CN2012100321639 A CN 2012100321639A CN 201210032163 A CN201210032163 A CN 201210032163A CN 102534597 A CN102534597 A CN 102534597A
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- surface silanization
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Abstract
The invention provides a metal surface silanization protection treating fluid, which is a mixed solution. A liter of mixed solution is prepared from the following components by weight: 13 to 50g of silane coupling agent KH590, 1 to 3g of phytic acid, 1.5 to 9g of triethanolamine, 0.1 to 0.2g of ammonium molybdate, 3 to 8g of sodium metasilicate, 95 to 105g of ethanol and the balance of water. When the treating fluid is used for treating metal workpieces, films formed on the metal surfaces have the characteristics of high adhesion, compactness, uniformity and low polarization current density, and defects of the conventional metal surface pretreatment are overcome, so that the metal surface pretreatment can be well applied to replace phosphating and blackening technologies; meanwhile, the treating fluid is environment-friendly in the production and using process.
Description
Technical field
The present invention relates to field of metal surface treatment, be specifically related to a kind of metallic surface silanization protective treatment liquid.
Background technology
In field of metal surface treatment; Though traditional phosphate conversion and chromating process for treating surface can obtain good effect; But contain carcinogenic substances such as heavy metal ion such as zinc, manganese, nickel, chromium and nitrite in the waste liquid of discharging in the treating processes, environmental pollution is very serious.And the metallic surface silanization treatment technology is not owing to relate to environmentally hazardous material; Energy consumption in production process is low, technical applications is extensive; Be considered to be expected to replace phosphate conversion processing and chromating processing; Be that the metallic surface is protected the recent development direction separately, the rete that solution of silane was handled in the existing technology metal works surface forms, density unevenness spare, have the cavity, it is sunken to split, put forth effort not strong with holding up of metallic object.
Summary of the invention
The invention discloses a kind of metallic surface silanization protective treatment liquid, adopt the silylanization treatment solution to handle metal works, form the polyacid rete on the surface; This rete has strong adhesion, do not have the cavity, split sunken, evenly fine and close; The characteristics that polarized current density is little, and production process environmental protection, pollution-free.
The technical scheme that adopts for the present invention of realization above-mentioned purpose is following:
A kind of metallic surface silanization protective treatment liquid, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 13-50g
Phytic acid 1-3g
Trolamine 1.5-9g
Ammonium molybdate 0.1-0.2g
Starso 3-8g
Alcohol 95-105g
Surplus is a water.
Described a kind of metallic surface silanization protective treatment liquid, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 20g
Phytic acid 2g
Trolamine 5g
Ammonium molybdate 0.2g
Starso 5g
Ethanol 100g
Surplus is a water.
Process for preparation is following:
1), absolute ethyl alcohol and deionized water mixing and stirring; Being mixed with concentration is 10% ethanolic soln, then silane coupling agent KH590 is added wherein, uses the pH value of glacial acetic acid, manganese hydrogen sodium regulating solution to be 8-10; Stirring is hydrolyzed into solution clarification, transparent, obtains solution A;
2), phytic acid is mixed by formula rate with trolamine, isothermal reaction 30-40min under 40-50 ℃ of condition obtains solution B;
3), Starso mixes by formula rate with ammonium molybdate, constant temperature 80-90 ℃ reaction obtains solution C under acidic conditions;
4), three kinds of solution of solution A, B, C are mixed, and use the pH value of manganese hydrogen sodium regulating solution to be 8-10, constant temperature 50-60 ℃ reaction promptly obtains treatment solution of the present invention.
Beneficial effect of the present invention:
With treatment solution of the present invention place metal works, the rete that forms in the metallic surface has following character:
(1) strong adhesion of rete: at when preparation at first phytic acid and trolamine condensation reaction generation hydramine phytate; The silicon-molybdenum heteropoly acid that molybdate and silicate reaction generate; Hydramine phytate and silicon-molybdenum heteropoly acid form hydramine phytate-silicon-molybdenum heteropoly acid rete, the hydramine phytate-silicon-molybdenum heteropoly acid rete of gained and the strong adhesion of metallic matrix then;
(2) this hydramine phytate-silicon-molybdenum heteropoly acid rete is evenly fine and close; Defectives such as the hole that traditional silicon alkanisation processing rete exists, crack have been overcome; This rete can overcome traditional silylanization effectively and handle defectives such as the hole of rete existence, crack; Strengthened the erosion resistance of metallic surface, the treatment time is short;
(3) this rete polarized current density is less, has very strong insulativity;
(4) this rete has strengthened the sticking power of later stage application paint film and metal body;
(5) production of the present invention and treating processes environmental protection are pollution-free.
Therefore this product can fundamentally improve the pretreated deficiency in existing metallic surface, thereby can the pre-treatment of better application metallic surface, substitutes phosphatization, black-emitting technology.
Embodiment
Embodiment 1
A kind of metallic surface silanization protective treatment liquid, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 15g
Phytic acid 1 g
Trolamine 1.5 g
Ammonium molybdate 0.1 g
Starso 3 g
Alcohol 95 g
Surplus is a water.
Process for preparation is following:
1), using deionized water dilution absolute ethyl alcohol to concentration is 10%; Silane coupling agent KH590 with formula rate adds wherein fully stirring then; Use the pH value of glacial acetic acid, manganese hydrogen sodium regulating solution to be 8-10, be stirred well to solution clarification, transparent, obtain solution A;
2), phytic acid is mixed by formula rate with trolamine, isothermal reaction 35min under 40-50 ℃ of condition obtains solution B;
3), Starso mixes by formula rate with ammonium molybdate, constant temperature 80-90 ℃ of reaction 25min obtains solution C under acidic conditions;
4) A, B, three kinds of solution of C are mixed, use the pH value of manganese hydrogen sodium regulating solution to be 8-10, constant temperature 50-60 ℃ of reaction 30min promptly obtains treatment solution of the present invention.
Embodiment 2
A kind of metallic surface silanization protective treatment liquid, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 20g
Phytic acid 2g
Trolamine 5g
Ammonium molybdate 0.2g
Starso 5g
Ethanol 100g
Surplus is a water.
The preparation method is with embodiment 1.
Embodiment 3
A kind of metallic surface silanization protective treatment liquid, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 45g
Phytic acid 3g
Trolamine 9g
Ammonium molybdate 0.15g
Starso 5g
Ethanol 100g
Surplus is a water.
The preparation method is with embodiment 1.
Contrast like following table with a kind of metallic surface silanization protective treatment liquid each item performance index of the present invention:
Claims (2)
1. a metallic surface silanization protective treatment liquid is characterized in that, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 13-50g
Phytic acid 1-3g
Trolamine 1.5-9g
Ammonium molybdate 0.1-0.2g
Starso 3-8g
Alcohol 95-105g
Surplus is a water.
2. a kind of metallic surface silanization protective treatment liquid according to claim 1 is characterized in that, by the formulated mixed solution of following component, the weight part of each component is in every liter of mixed solution:
Silane coupling agent KH590 20g
Phytic acid 2g
Trolamine 5g
Ammonium molybdate 0.2g
Starso 5g
Ethanol 100g
Surplus is a water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100321639A CN102534597A (en) | 2012-02-14 | 2012-02-14 | Metal surface silanization protection treating fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100321639A CN102534597A (en) | 2012-02-14 | 2012-02-14 | Metal surface silanization protection treating fluid |
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| CN102534597A true CN102534597A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012100321639A Pending CN102534597A (en) | 2012-02-14 | 2012-02-14 | Metal surface silanization protection treating fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863194A (en) * | 2019-12-06 | 2020-03-06 | 沈阳工程学院 | Phosphating and silanization composite treatment fluid and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006126394A1 (en) * | 2005-05-23 | 2006-11-30 | Nihon Parkerizing Co., Ltd. | Aqueous surface treating agent for precoated metal material, surface treatment method and method for producing precoated metal material |
| CN101818347A (en) * | 2010-04-28 | 2010-09-01 | 蚌埠市钰诚五金工贸有限公司 | Treatment agent before low-temperature glazing technology and method for preparing products by using treatment agent |
| CN102146560A (en) * | 2011-03-18 | 2011-08-10 | 蚌埠市钰诚五金工贸有限公司 | Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent |
-
2012
- 2012-02-14 CN CN2012100321639A patent/CN102534597A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006126394A1 (en) * | 2005-05-23 | 2006-11-30 | Nihon Parkerizing Co., Ltd. | Aqueous surface treating agent for precoated metal material, surface treatment method and method for producing precoated metal material |
| CN101818347A (en) * | 2010-04-28 | 2010-09-01 | 蚌埠市钰诚五金工贸有限公司 | Treatment agent before low-temperature glazing technology and method for preparing products by using treatment agent |
| CN102146560A (en) * | 2011-03-18 | 2011-08-10 | 蚌埠市钰诚五金工贸有限公司 | Rare earth-silanization treatment agent used before metal cathode electrophoresis and preparation method of rare earth-silanization treatment agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863194A (en) * | 2019-12-06 | 2020-03-06 | 沈阳工程学院 | Phosphating and silanization composite treatment fluid and preparation method thereof |
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Application publication date: 20120704 |