CN103254779A - Alkali resistant metal surface silane treatment agent and preparation method thereof - Google Patents
Alkali resistant metal surface silane treatment agent and preparation method thereof Download PDFInfo
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- CN103254779A CN103254779A CN2013101184205A CN201310118420A CN103254779A CN 103254779 A CN103254779 A CN 103254779A CN 2013101184205 A CN2013101184205 A CN 2013101184205A CN 201310118420 A CN201310118420 A CN 201310118420A CN 103254779 A CN103254779 A CN 103254779A
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Abstract
The invention discloses an alkali resistant metal surface silane treatment agent, which is a mixed solution. And per liter of the mixed solution is composed of the following components by weight(g): 50-60 of vinyltriethoxy silane, 6-8 of ammonia water, 2-3 of boric acid, 3-5 of ammonium molybdate, 1-2 of glycol tert-butyl ether, 4-6 of 2-methyl-1, 3-propylene glycol, 0.4-0.6 of ammonium metavanadate, 2-4 of a film forming aid, and the balance water. The treatment process of the alkali resistant metal surface silane treatment agent produced in the invention generates no dreg, the treatment time is short, and the control is simple and convenient. Being free of harmful heavy metal ions, the alkali resistant metal surface silane treatment agent is safe and environment-friendly, and can form a silane coating having excellent corrosion resistance with a metal surface, thus prolonging the service life of the metal.
Description
Technical field
The present invention relates generally to a kind for the treatment of agent, relates in particular to a kind of alkaline-resisting metallic surface silane finish.
Background technology
Maturation along with metal surface treatment process, traditional phosphate conversion and chromating process for treating surface are because contaminate environment, substituted by the silanization treatment technology of environmental protection and energy saving gradually factors such as human body work the mischief easily, it is the film forming properties of simple dependence silane mostly that but present silanization is handled, make the rete that metal works surface that solution of silane handled forms, density unevenness spare, have the cavity, split sunken, not strong with the sticking power of metallic object.
Summary of the invention
The object of the invention is exactly in order to remedy the defective of prior art, a kind of alkaline-resisting metallic surface silane finish and preparation method thereof to be provided.
The present invention is achieved by the following technical solutions:
A kind of alkaline-resisting metallic surface silane finish, it is by the formulated mixed solution of following component, the weight part (gram) of each component is in every liter of mixed solution:
Vinyltriethoxysilane 50-60, ammoniacal liquor 6-8, boric acid 2-3, ammonium molybdate 3-5, ethylene glycol tertbutyl ether 1-2,2-methyl isophthalic acid, ammediol 4-6, ammonium meta-vanadate 0.4-0.6, film coalescence aid 2-4, remaining be water;
Described film coalescence aid is made up of the raw material of following weight parts:
Two (triethoxy is silica-based) ethane 4-6 of 1,2-, diethylene glycol monobutyl ether 3-5, vinylformic acid 4-6, Starso 1-2, alum 1-2, water 15-20;
With above-mentioned 1, two (triethoxy the is silica-based) ethane of 2-are added to the water, stir post-heating to 70-80 ℃, add vinylformic acid, Starso, stirring reaction 30-40 minute, the rising temperature was as for 90-100 ℃, add diethylene glycol monobutyl ether, alum, stirring reaction 10-20 minute, insulation was left standstill 1-2 hour, got described film coalescence aid.
The preparation method of described alkaline-resisting metallic surface silane finish is characterized in that may further comprise the steps:
(1) above-mentioned vinyltriethoxysilane is soluble in water, add ammonium molybdate, fully stir;
(2) above-mentioned boric acid is mixed to join in the water, is heated to 50-60 ℃, be cooled to normal temperature after the stirring and dissolving, fully stir;
(3) above-mentioned ammoniacal liquor is mixed with ammonium meta-vanadate, fully stir;
(4) raw material after the above-mentioned processing is mixed, add acetic acid or sodium-acetate, adjusting PH is 4-5, adds each raw material of residue at last, namely gets described alkaline-resisting metallic surface silane finish after fully stirring.
Described a kind of alkaline-resisting metallic surface silane finish is characterized in that described ammoniacal liquor is the aqueous solution that contains ammonia 25-28%.
Advantage of the present invention is:
The alkaline-resisting metallic surface silane finish treating processes that the present invention produces does not produce sediment, treatment time is short, control easy, no harmful heavy metal ion, safety and environmental protection, the silane coating that forms with the metallic surface has excellent erosion resistance, acid resistance, alkali resistance, oil-proofness, stripper-resistance, the high adherence energy, prolonged the work-ing life of metal, cooperate the modified manometer silicon dioxide dispersion liquid by several silane, stability and the efficient binding property of this treatment agent have been strengthened, it is evenly distributed in the metallic surface, makes metal have high compactness and the perviousness of anti-ion, and the film coalescence aid of adding has increased the density of silane adsorption film, improved quality of forming film, make rete have strong adhesion, do not have the cavity, split sunken, fine and close advantage such as even.
Embodiment
Embodiment 1
A kind of alkaline-resisting metallic surface silane finish, it is by the formulated mixed solution of following component, the weight part (gram) of each component is in every liter of mixed solution:
Vinyltriethoxysilane 60, ammoniacal liquor 8, boric acid 3, ammonium molybdate 5, ethylene glycol tertbutyl ether 2,2-methyl isophthalic acid, ammediol 6, ammonium meta-vanadate 0.6, film coalescence aid 4, remaining be water;
Described film coalescence aid is made up of the raw material of following weight parts:
Two (triethoxy the is silica-based) ethane 6 of 1,2-, diethylene glycol monobutyl ether 5, vinylformic acid 6, Starso 2, alum 1, water 20;
With above-mentioned 1, two (triethoxy the is silica-based) ethane of 2-are added to the water, stir post-heating to 80 ℃, add vinylformic acid, Starso, stirring reaction 40 minutes, the rising temperature is as for 100 ℃, add diethylene glycol monobutyl ether, alum, stirring reaction 20 minutes, insulation was left standstill 2 hours, got described film coalescence aid.
A kind of preparation method of alkaline-resisting metallic surface silane finish may further comprise the steps:
(1) above-mentioned vinyltriethoxysilane is soluble in water, add ammonium molybdate, fully stir;
(2) above-mentioned boric acid is mixed to join in the surplus water, is heated to 60 ℃, be cooled to normal temperature after the stirring and dissolving, fully stir;
(3) above-mentioned ammoniacal liquor is mixed with ammonium meta-vanadate, fully stir;
(4) raw material after the above-mentioned processing is mixed, add acetic acid or sodium-acetate, regulating PH is 5, adds each raw material of residue at last, namely gets described alkaline-resisting metallic surface silane finish after fully stirring.
Alkaline-resisting metallic surface silane finish, described ammoniacal liquor are the aqueous solution that contains ammonia 28%.
Performance test:
The salt spray resistance experiment:
Handle the experiment steel plate with alkaline-resisting metallic surface silane finish of the present invention, carried out salt mist experiment 80 hours, the coating surface no change, salt mist experiment 140 hours, surface of steel plate corroded area are 0.1%
Crooked viscosity:
Handle the experiment steel plate with alkaline-resisting metallic surface silane finish of the present invention, with crooked 50 degree of steel plate doubling, peel off curved part 3 times with adhesive tape, detect extent of exfoliation under the X20 magnifying glass, flawless keeps under the bending condition as a result, with 80-90 ℃ steamed 20-30 ℃, peel off curved part 3 times with adhesive tape again, detect extent of exfoliation under the X20 magnifying glass, the result is flawless still;
Acid resistance:
Handling the experiment steel plate with alkaline-resisting metallic surface of the present invention silane finish, is that 24 ℃ 0.05mol/l sulfuric acid sprays experiment, experimental period 20 hours with temperature, clean with clear water, indoor placement 2 hours, the coating surface no change, nothing is bubbled, nothing comes off, do not have damaged;
Alkali resistance:
Handling the experiment steel plate with alkaline-resisting metallic surface of the present invention silane finish, is that the sodium hydroxide of 25 ℃ 0.1mol/l sprays experiment, experimental period 24 hours with temperature, clean with clear water, indoor placement 2 hours, the coating surface no change, nothing is bubbled, nothing comes off, do not have damaged;
Anti-separability:
Handle the experiment steel plate with alkaline-resisting metallic surface silane finish of the present invention, be coated with the paste that face is coated with last layer 2-3mm at steel plate, being put into temperature is 50 ℃, in the watertight chest of relative humidity 96%, experimental period 20 hours, take out the back and clean with clear water, coating surface does not have foaming, nothing comes off, do not have damaged.
Oil-proofness:
Handle the experiment steel plate with alkaline-resisting metallic surface of the present invention silane finish, the vertical immersion is equipped with in the Glass Containers of spearmint oil, and keeping the temperature of volatile oil is 24 ℃, takes out the back indoor placement 2 hours, and paint film do not have wrinkle, do not have and heave, have damaged, nothing and come off.
Claims (3)
1. an alkaline-resisting metallic surface silane finish is characterized in that it is by the formulated mixed solution of following component, and the weight part (gram) of each component is in every liter of mixed solution:
Vinyltriethoxysilane 50-60, ammoniacal liquor 6-8, boric acid 2-3, ammonium molybdate 3-5, ethylene glycol tertbutyl ether 1-2,2-methyl isophthalic acid, ammediol 4-6, ammonium meta-vanadate 0.4-0.6, film coalescence aid 2-4, remaining be water;
Described film coalescence aid is made up of the raw material of following weight parts:
Two (triethoxy is silica-based) ethane 4-6 of 1,2-, diethylene glycol monobutyl ether 3-5, vinylformic acid 4-6, Starso 1-2, alum 1-2, water 15-20;
With above-mentioned 1, two (triethoxy the is silica-based) ethane of 2-are added to the water, stir post-heating to 70-80 ℃, add vinylformic acid, Starso, stirring reaction 30-40 minute, the rising temperature was as for 90-100 ℃, add diethylene glycol monobutyl ether, alum, stirring reaction 10-20 minute, insulation was left standstill 1-2 hour, got described film coalescence aid.
2. the preparation method of an alkaline-resisting metallic surface silane finish as claimed in claim 1 is characterized in that may further comprise the steps:
(1) above-mentioned vinyltriethoxysilane is soluble in water, add ammonium molybdate, fully stir;
(2) above-mentioned boric acid is mixed to join in the water, is heated to 50-60 ℃, be cooled to normal temperature after the stirring and dissolving, fully stir;
(3) above-mentioned ammoniacal liquor is mixed with ammonium meta-vanadate, fully stir;
(4) raw material after the above-mentioned processing is mixed, add acetic acid or sodium-acetate, adjusting PH is 4-5, adds each raw material of residue at last, namely gets described alkaline-resisting metallic surface silane finish after fully stirring.
3. a kind of alkaline-resisting metallic surface silane finish according to claim 1 is characterized in that described ammoniacal liquor is the aqueous solution that contains ammonia 25-28%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101184205A CN103254779A (en) | 2013-04-08 | 2013-04-08 | Alkali resistant metal surface silane treatment agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101184205A CN103254779A (en) | 2013-04-08 | 2013-04-08 | Alkali resistant metal surface silane treatment agent and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360644A (en) * | 1999-07-19 | 2002-07-24 | 辛辛那提大学 | Protective treatment of metal surfaces with aqueous mixture of vinyl silane and bis-silyl aminosilane |
| CN101717930A (en) * | 2009-12-25 | 2010-06-02 | 华烁科技股份有限公司 | Environment-friendly nano water-based silane treatment agent capable of improving anti-corrosion performance of metal surface |
| US20110143130A1 (en) * | 2003-08-15 | 2011-06-16 | Hoden Seimitsu Kako Kenkyusho Co., Ltd. | Chromium-free metal surface treatment agent |
| CN102181228A (en) * | 2011-04-15 | 2011-09-14 | 龚向光 | Metal surface silanization treatment agent and surface silanization treatment method using the same |
| CN102911578A (en) * | 2012-11-13 | 2013-02-06 | 广州立铭环保科技有限公司 | Silane treating solution |
-
2013
- 2013-04-08 CN CN2013101184205A patent/CN103254779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1360644A (en) * | 1999-07-19 | 2002-07-24 | 辛辛那提大学 | Protective treatment of metal surfaces with aqueous mixture of vinyl silane and bis-silyl aminosilane |
| US20110143130A1 (en) * | 2003-08-15 | 2011-06-16 | Hoden Seimitsu Kako Kenkyusho Co., Ltd. | Chromium-free metal surface treatment agent |
| CN101717930A (en) * | 2009-12-25 | 2010-06-02 | 华烁科技股份有限公司 | Environment-friendly nano water-based silane treatment agent capable of improving anti-corrosion performance of metal surface |
| CN102181228A (en) * | 2011-04-15 | 2011-09-14 | 龚向光 | Metal surface silanization treatment agent and surface silanization treatment method using the same |
| CN102911578A (en) * | 2012-11-13 | 2013-02-06 | 广州立铭环保科技有限公司 | Silane treating solution |
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Application publication date: 20130821 |
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