Summary of the invention
For problems of the prior art, the present invention aim to provide a kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium and preparation method thereof.
Concrete technical scheme of the present invention is as follows:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, it is characterized in that: be comprised of by the 3:1 mass ratio the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 25 ~ 40%
Nano silicon 20 ~ 30%
Sodium lignosulfonate 12 ~ 18%
Benzotriazole 3 ~ 5%
Thio-diethylene glycol 0.2 ~ 0.5%
Triphenylphosphine 0.2 ~ 0.5%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 20-30%
γ-aminopropyl triethoxysilane 15 ~ 20%
Myo-Inositol hexaphosphate 10 ~ 18%
Cellaburate 2 ~ 5%
Ethanol 5-9%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Wherein, each composition mass percent of described aluminium zinc powder is: Zn:60% ~ 70%, and Ni:0.5% ~ 0.8%, Mg:0.1% ~ 0.2%, Ti:0.1% ~ 0.2%, Si:0.5% ~ 1.0%, surplus is Al and inevitable impurity.
Preferably, a kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, it is characterized in that: be comprised of by the 3:1 mass ratio the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 32%
Nano silicon 25%
Sodium lignosulfonate 15%
Benzotriazole 4%
Thio-diethylene glycol 0.35%
Triphenylphosphine 0.35%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 25%
γ-aminopropyl triethoxysilane 18%
Myo-Inositol hexaphosphate 14%
Cellaburate 3.5%
Ethanol 7%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Wherein, each composition mass percent of described aluminium zinc powder is: Zn:60% ~ 70%, and Ni:0.5% ~ 0.8%, Mg:0.1% ~ 0.2%, Ti:0.1% ~ 0.2%, Si:0.5% ~ 1.0%, surplus is Al and inevitable impurity.
The present invention also provides a kind of method for preparing the Non-chromium Zn-al Coating protective system of nickeliferous-magnesium-titanium-silicon, it is characterized in that:
(1) at first, press the prescription in the A component, take by weighing quantitative sodium lignosulfonate, benzotriazole, thio-diethylene glycol, triphenylphosphine and dissolve in the deionized water, then under whipped state, slowly add nano silicon, the aluminium zinc powder leaves standstill after stirring 2h;
(2) press prescription in the B component, take by weighing quantitative zirconium tetrafluoride, γ-aminopropyl triethoxysilane, myo-Inositol hexaphosphate and slowly join deionized water for stirring, slowly add while stirring cellaburate and ethanol after mixing, leave standstill after continuing to stir 2h;
(3) will leave standstill the above A component of 4h and B component in mass ratio 3:1 mix and namely get described Non-chromium Zn-al Coating protective system.
Non-chromium Zn-al Coating of the present invention and zinc-chromium coating are close applying production technique.After part was carried out pre-treatment, Non-chromium Zn-al Coating was the same with zinc-chromium coating, the dipping of employing routine-centrifugal, spraying or dipping-drop liquid-centrifugal coating processes.Part behind the primary coating heats under 170 ℃ of conditions to be kept 15 minutes after fixing and obtains coating, carry out applying curing second time after then will part taking out cooling, and the regelate temperature is 170 ℃, time length 15-20 minute.Can obtain different coat-thicknesses by the processing parameter of adjusting coating procedure.
Beneficial effect of the present invention: adopt coating of the present invention to make antiseptic engineering component and have many excellent properties, as: the solidity to corrosion that the coating curing temperature is low, excellent, good shock resistance, strong with basal body binding force, with other various additional coatings preferably bonding force is arranged also simultaneously, remedied simultaneously the lower deficiency of self hardness in the prior art, coating wear resistance is good, and high heat/corrosion resistance is fabulous, the extreme environment long service life.That product of the present invention has is nontoxic, harmless, pollution-free, low temperature fast processing, simple to operate, the characteristics such as raw material sources are extensive, price is low, cleaner production, the home market price of Non-chromium Zn-al Coating slurries of the present invention only is 120 yuans/kilogram, thereby the processing that greatly reduces Non-chromium Zn-al Coating applies cost, for China's large-scale application Non-chromium Zn-al Coating has been created condition.
Embodiment
The below provides some preferred embodiments of formulation for coating material proportioning of the present invention, but the numerical value that the content of each moiety of the present invention is not limited to provide, for a person skilled in the art, can in the prescription numerical range, reasonably summarize and reasoning fully.
Embodiment 1:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, formed by the 3:1 mass ratio by the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 32%
Nano silicon 25%
Sodium lignosulfonate 15%
Benzotriazole 4%
Thio-diethylene glycol 0.35%
Triphenylphosphine 0.35%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 25%
γ-aminopropyl triethoxysilane 18%
Myo-Inositol hexaphosphate 14%
Cellaburate 3.5%
Ethanol 7%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Prepare above-mentioned nickeliferous-method of the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon:
(1) at first, press the prescription in the A component, take by weighing quantitative sodium lignosulfonate, benzotriazole, thio-diethylene glycol, triphenylphosphine and dissolve in the deionized water, then under whipped state, slowly add nano silicon, the aluminium zinc powder leaves standstill after stirring 2h;
(2) press prescription in the B component, take by weighing quantitative zirconium tetrafluoride, γ-aminopropyl triethoxysilane, myo-Inositol hexaphosphate and slowly join deionized water for stirring, slowly add while stirring cellaburate and ethanol after mixing, leave standstill after continuing to stir 2h;
(3) will leave standstill the above A component of 4h and B component in mass ratio 3:1 mix and namely get described Non-chromium Zn-al Coating protective system.
Embodiment 2:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, formed by the 3:1 mass ratio by the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 25%
Nano silicon 30%
Sodium lignosulfonate 12%
Benzotriazole 5%
Thio-diethylene glycol 0.2%
Triphenylphosphine 0.5%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 20%
γ-aminopropyl triethoxysilane 20%
Myo-Inositol hexaphosphate 10%
Cellaburate 5%
Ethanol 5%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
The preparation method is with embodiment 1.
Embodiment 3:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, formed by the 3:1 mass ratio by the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 40%
Nano silicon 20%
Sodium lignosulfonate 18%
Benzotriazole 3%
Thio-diethylene glycol 0.5%
Triphenylphosphine 0.2%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 30%
γ-aminopropyl triethoxysilane 15%
Myo-Inositol hexaphosphate 18%
Cellaburate 2%
Ethanol 9%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
The preparation method is with embodiment 1.
Embodiment 4:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, formed by the 3:1 mass ratio by the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 26%
Nano silicon 29%
Sodium lignosulfonate 13%
Benzotriazole 4.5%
Thio-diethylene glycol 0.25%
Triphenylphosphine 0.45%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 22%
γ-aminopropyl triethoxysilane 18.5%
Myo-Inositol hexaphosphate 12%
Cellaburate 4.5%
Ethanol 6%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
The preparation method is with embodiment 1.
Embodiment 5:
A kind of nickeliferous-the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon, formed by the 3:1 mass ratio by the two components of A, B, wherein: the prescription quality per-cent of A component is:
Aluminium zinc powder 38%
Nano silicon 22%
Sodium lignosulfonate 17%
Benzotriazole 3.5%
Thio-diethylene glycol 0.45%
Triphenylphosphine 0.25%
The deionized water surplus
The prescription quality per-cent of B component is:
Zirconium tetrafluoride 28%
γ-aminopropyl triethoxysilane 16%
Myo-Inositol hexaphosphate 17%
Cellaburate 2.5%
Ethanol 8%
The deionized water surplus
Wherein, described aluminium zinc powder is comprised of Zn, Al, Ni, Mg, Ti, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
The preparation method is with embodiment 1.
Aluminium zinc powder described in the above embodiment 1 ~ 5 is by Zn, Al, Ni, Mg, Ti and Si form, below, associative list 1 provides some preferred embodiments of each moiety mass percent of aluminium zinc powder of the present invention, but the content of each moiety of aluminium zinc powder of the present invention is not limited to listed numerical value in this table, and of particular note, although provided the mass percent numerical value of Related Component in the table 1, but these are described as essential features, all be as preferred condition, all be in order to provide in more detail technical intelligence of the present invention, and described as prerequisite of the present invention.
Each moiety mass percentage content (%) of table 1 aluminium zinc powder
Above-mentioned 5 kinds of embodiment nickeliferous-performance test of the coating of the Non-chromium Zn-al Coating protective system of magnesium-titanium-silicon is as follows:
(1) erosion resistance of coating
Adopt two kinds of method tests of anti-ammonium nitrate and salt-fog test.
Neutral salt spray test is undertaken by GB/T1771 " the anti-neutral salt spray performance measurement of paint and varnish ", test conditions is: sodium-chlor (50 ± 10) g/L, pH:6.5 ~ 7.2, salt fog the temperature inside the box: (35 ± 2) ℃, the specimen surface corrosion condition is recorded in spraying simultaneously continuously.
The operation steps of anti-ammonium nitrate test is as follows: the ammonium nitrate solution of preparation 20% in beaker, and beaker is put into water bath with thermostatic control be heated to (70 ± 1) ℃.(with thermometer measure and control bath temperature), all or part of dipping of the model that will test wherein hang fixingly, and the time of red rust appears in the record model.
(2) shock-resistance of coating
Adopt GB/T l732-1993 " the shock-resistant assay method of paint film " to judge the shock-resistance of coating.Step is as follows: the test plate (panel) paint film of will painting lies on the anvil up, and the test plate (panel) part edge that is hit is not less than 15mm, and the edge of each shock point is at a distance of being less than 15mm.The a certain height (this height is stipulated by product standard or decided through consultation) that weight borrows control device to be fixed on slide cartridge is pressed control knob, and weight namely freely falls within on the drift.Mention weight, take out test plate (panel), the record weight falls within the height on the test plate (panel).Same test plate (panel) carries out shock test 3 times.Observe with 4 times of magnifying glasses, judge that paint film has flawless, wrinkle and the phenomenon such as peels off.
(3) coating humidity resistance
Adopt GB/T1740-1979 " paint film wet-heat resisting assay method " to judge the humidity resistance of coating.
Performance test data:
Certain marine oil company drilling well vital part drill conductor (material 35CrMo), the former protective treatment of adopting routine only namely produces significant corrosion after the several months.Adopt coating of the present invention to apply on the phosphatize phosphate coat basis and form 30 μ m thick coatings, show that through the accelerated corrosion analog reslt its main performance index that reaches is in seawater splash band environment:
? |
The neutral salt spray corrosion life |
300 ℃ of humidity resistance life-spans |
The coating shock-resistance |
The quick corrosion life of ammonium nitrate |
Embodiment 1 |
Greater than 1400 hours |
Greater than 240 hours |
50N |
Greater than 9 hours |
Embodiment 2 |
Greater than 1200 hours |
Greater than 200 hours |
50N |
Greater than 8 hours |
Embodiment 3 |
Greater than 1200 hours |
Greater than 200 hours |
50N |
Greater than 8 hours |
Embodiment 4 |
Greater than 1200 hours |
Greater than 200 hours |
50N |
Greater than 8 hours |
Embodiment 5 |
Greater than 1200 hours |
Greater than 200 hours |
50N |
Greater than 8 hours |