CN103044988B - Magnesium-silicon-containing chromium-free zinc-aluminum coating anti-corrosive paint - Google Patents
Magnesium-silicon-containing chromium-free zinc-aluminum coating anti-corrosive paint Download PDFInfo
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- CN103044988B CN103044988B CN201310000220.XA CN201310000220A CN103044988B CN 103044988 B CN103044988 B CN 103044988B CN 201310000220 A CN201310000220 A CN 201310000220A CN 103044988 B CN103044988 B CN 103044988B
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- 238000000576 coating method Methods 0.000 title claims abstract description 70
- 239000011248 coating agent Substances 0.000 title claims abstract description 64
- 229910000611 Zinc aluminium Inorganic materials 0.000 title claims abstract description 29
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 title abstract description 14
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000008367 deionised water Substances 0.000 claims abstract description 23
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims abstract description 22
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 11
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012964 benzotriazole Substances 0.000 claims abstract description 11
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 11
- OMQSJNWFFJOIMO-UHFFFAOYSA-J zirconium tetrafluoride Chemical compound F[Zr](F)(F)F OMQSJNWFFJOIMO-UHFFFAOYSA-J 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 27
- 239000011651 chromium Substances 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 20
- 239000005543 nano-size silicon particle Substances 0.000 claims description 18
- 239000011701 zinc Substances 0.000 claims description 14
- 229950002895 cellaburate Drugs 0.000 claims description 10
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- UUABJBNMBCIBFA-UHFFFAOYSA-N 1-hydroxy-2-(2-hydroxyethoxy)ethanesulfonic acid Chemical compound OCCOCC(O)S(O)(=O)=O UUABJBNMBCIBFA-UHFFFAOYSA-N 0.000 abstract 1
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 abstract 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 229940068041 phytic acid Drugs 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 10
- DQIPXGFHRRCVHY-UHFFFAOYSA-N chromium zinc Chemical compound [Cr].[Zn] DQIPXGFHRRCVHY-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000035939 shock Effects 0.000 description 5
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000002421 anti-septic effect Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XUIMIQQOPSSXEZ-OUBTZVSYSA-N silicon-29 atom Chemical compound [29Si] XUIMIQQOPSSXEZ-OUBTZVSYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-NJFSPNSNSA-N silicon-30 atom Chemical compound [30Si] XUIMIQQOPSSXEZ-NJFSPNSNSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses magnesium-silicon-containing chromium-free zinc-aluminum coating anti-corrosive paint which comprises an A component and a B component at a mass ratio of 3:1, wherein the A component comprises the following raw materials: allumen powder, nano-silica, sodium lignosulphonate, benzotriazole, sulpho-diethylene glycol, triphenylphosphine and deionized water; the B component comprises the following raw materials: zirconium tetrafluoride, gamma-aminopropyl triethoxy silane, inositol hexaphosphate, cellulose acetate-butyrate, ethanol and deionized water; and the allumen powder comprises Zn, Al, Mg and Si. The paint has the characteristics of no toxicity, harmlessness, no pollution, low-temperature immediate processing, easiness in operation, extensive raw material sources, low price, cleaner production and the like.
Description
Technical field
The present invention relates to a kind of metal anti-corrosive paint, particularly a kind of Non-chromium Zn-al Coating protective system containing magnesium-silicon.
Background technology
Non-chromium Zn-al Coating is the environmental requirement that VOC regulation and paint industry for meeting countries in the world specify, substitutes traditional Dacroment zinc-chromium coating technique and the surface treatment novel material developed.
Dacroment is DACROMET transliteration and abbreviation, is called for short Dacroment, reaches gram rust, a Di Kelong.Domestic called after zinc-chromium coating is a kind of novel protective system being main component with zinc powder, aluminium powder, chromic acid and deionized water.Its antiseptic principle is the zinc, the aluminium flake that adopt the hexavalent chromium in chromic salts to come in passivation coatings, improve the antiseptic power of zinc, aluminium flake self, through 300 DEG C of bakings, redox reaction forms amorphous nCr2O3mCrO3 composite salt, metallic surface is covered with zinc-aluminium sheet overlap, to make under the thickness film layer condition only having 6 ~ 8um, just under neutral salt spray 1000h condition, substantially red rust can not produced.It is also with or without hydrogen embrittlement simultaneously, the advantage that can be combined with the rete of multiple plating, coating.But containing the chromium ion be harmful to environment and human body in zinc-chromium coating, especially hexavalent chromium has carcinogenesis.Although the coating processes of zinc-chromium coating is a totally enclosed process, the not outer row of coating, chromic anhydride residual in coating can in use be discharged in environment lentamente, has certain potential hazard to human and environment.Therefore, relevant environment regulation puts into effect the content of the chromium in strict restriction Dyclo paint.In addition, this coating curing temperatures is up to 300 DEG C, and set time also reaches about 30 minutes, and energy consumption is large; Hardness is low, wears no resistance.Workpiece usually can be subject to scratch, scratch in transport, assembling, use procedure, affects outward appearance and the solidity to corrosion of product.
Aluminum Coating (chromium-free Dyclo) as the renewal product of Dacroment first by the general recognition and acceptance of automobile manufacture industry.The product that Non-chromium Zn-al Coating achieves industrialization at present cans be counted on one's fingers, and a kind of is the Geomet(Geomet released by MCI company of the U.S.) coating, a kind of Delta coating being German DELTA company and releasing, above two kinds of coatings generally use in developed country.
At present, all have the commercial application of Chrome-free Dacromet Technology both at home and abroad, but the more traditional Dacromet/steel of the solidity to corrosion of coating obviously reduces, and need arrange in pairs or groups with another layer of organic coating and use, considerably increase cost.The cost of Non-chromium Zn-al Coating is more much higher than zinc-chromium coating, and therefore its price is very high.The German spot price of Delta slurries is 40 Euros/kilogram, the Japanese spot price of Geomet Geomet slurries is 1750 yen/kilogram, estimates that they all should more than 250 yuans/kilogram in the sale price of China thus.Therefore, the focus that chromium-free Dyclo paint that a kind of cost is not less than traditional zinc-chromium coating higher than the corrosion resisting property of traditional Dyclo paint and existing zinc-aluminum paint, coating is the research of domestic and international anti-corrosion of metal is worked out.
Summary of the invention
For problems of the prior art, the present invention aims to provide a kind of Non-chromium Zn-al Coating protective system containing magnesium-silicon and preparation method thereof.
Concrete technical scheme of the present invention is as follows:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, it is characterized in that: be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy 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%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Wherein, each composition mass percent of described zinc aluminium alloy powder is: Zn:60% ~ 70%, Mg:0.5% ~ 0.8%, Si:0.5 ~ 1.0%, and surplus is Al and inevitable impurity.
Preferably, a kind of Non-chromium Zn-al Coating protective system containing magnesium-silicon, is characterized in that: be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 32%
Nano silicon 25%
Sodium lignosulfonate 15%
Benzotriazole 4%
Thio-diethylene glycol 0.35%
Triphenylphosphine 0.35%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Wherein, each composition mass percent of described zinc aluminium alloy powder is: Zn:60% ~ 70%, Mg:0.5% ~ 0.8%, Si:0.5 ~ 1.0%, and surplus is Al and inevitable impurity.
Present invention also offers a kind of method preparing Non-chromium Zn-al Coating protective system containing magnesium-silicon, it is characterized in that:
(1) first, by the formula in component A, take quantitative sodium lignosulfonate, benzotriazole, thio-diethylene glycol, triphenylphosphine dissolve in deionized water, under whipped state, then slowly add nano silicon, zinc aluminium alloy powder leaves standstill after stirring 2h;
(2) by the formula in B component, take quantitative zirconium tetrafluoride, γ-aminopropyl triethoxysilane, myo-Inositol hexaphosphate slowly join deionized water for stirring, slowly add cellaburate and ethanol while stirring after mixing, leave standstill after Keep agitation 2h;
(3) by the component A of standing more than 4h and B component in mass ratio 3:1 mix and obtain described Non-chromium Zn-al Coating protective system.
Non-chromium Zn-al Coating of the present invention and zinc-chromium coating are close applying in production technique.After carrying out pre-treatment to part, Non-chromium Zn-al Coating is the same with zinc-chromium coating, adopts the coating processes of conventional soaking-centrifugation, spraying or dipping-drop liquid-centrifugal.Part after primary coating heats maintenance 15 minutes after fixing and obtains coating under 170 DEG C of conditions, and carry out second time after then part being taken out cooling and apply solidification, regelate temperature is 170 DEG C, time length 15-20 minute.Different coat-thicknesses can be obtained by the processing parameter adjusting coating procedure.
Beneficial effect of the present invention: adopt coating of the present invention to make antiseptic engineering component and there is many excellent properties, solidity to corrosion as low, excellent in: coating curing temperatures, excellent shock resistance, strong with basal body binding force, also have good bonding force with other various additional coatings simultaneously, compensate for the deficiency that in prior art, its rigidity is lower simultaneously, coating wear resistance is good, and high heat/corrosion resistance is fabulous, extreme environment long service life.Product of the present invention has nontoxic, harmless, pollution-free, low temperature fast processing, the feature such as simple to operate, 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 is only 120 yuans/kilogram, thus greatly reduce the processing coating cost of Non-chromium Zn-al Coating, for China's large-scale application Non-chromium Zn-al Coating creates condition.
Be further advanced by and zinc aluminium alloy powder is made micron-sized powder, the solidity to corrosion of coating, wear resistance, shock resistance more traditional zinc chrome Dacromet/steel and existing Aluminum Coating are greatly improved, are applicable to the corrodibility severe environment such as air is rainy, high-temperature high-humidity, many salt fogs and high wind stream.Practical application proves, when the particle diameter of powder is at 20-50 micron, Aluminum Coating property indices of the present invention reaches best.
Embodiment
Provide some preferred embodiments of formulation for coating material proportioning of the present invention below, but the content of each moiety of the present invention is not limited to the numerical value provided, for a person skilled in the art, reasonably can summarize and reasoning in formula numerical range completely.
Embodiment 1:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 32%
Nano silicon 25%
Sodium lignosulfonate 15%
Benzotriazole 4%
Thio-diethylene glycol 0.35%
Triphenylphosphine 0.35%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Prepare the method for the above-mentioned Non-chromium Zn-al Coating protective system containing magnesium-silicon:
(1) first, by the formula in component A, take quantitative sodium lignosulfonate, benzotriazole, thio-diethylene glycol, triphenylphosphine dissolve in deionized water, under whipped state, then slowly add nano silicon, zinc aluminium alloy powder leaves standstill after stirring 2h;
(2) by the formula in B component, take quantitative zirconium tetrafluoride, γ-aminopropyl triethoxysilane, myo-Inositol hexaphosphate slowly join deionized water for stirring, slowly add cellaburate and ethanol while stirring after mixing, leave standstill after Keep agitation 2h;
(3) by the component A of standing more than 4h and B component in mass ratio 3:1 mix and obtain described Non-chromium Zn-al Coating protective system.
Embodiment 2:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 25%
Nano silicon 30%
Sodium lignosulfonate 12%
Benzotriazole 5%
Thio-diethylene glycol 0.2%
Triphenylphosphine 0.5%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Preparation method is with embodiment 1.
Embodiment 3:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 40%
Nano silicon 20%
Sodium lignosulfonate 18%
Benzotriazole 3%
Thio-diethylene glycol 0.5%
Triphenylphosphine 0.2%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Preparation method is with embodiment 1.
Embodiment 4:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 26%
Nano silicon 29%
Sodium lignosulfonate 13%
Benzotriazole 4.5%
Thio-diethylene glycol 0.25%
Triphenylphosphine 0.45%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Preparation method is with embodiment 1.
Embodiment 5:
Containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
Zinc aluminium alloy powder 38%
Nano silicon 22%
Sodium lignosulfonate 17%
Benzotriazole 3.5%
Thio-diethylene glycol 0.45%
Triphenylphosphine 0.25%
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%
Deionized water surplus
Wherein, described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si.
Wherein, the particle diameter of described nano silicon is 20 ~ 50nm.
Preparation method is with embodiment 1.
Zinc aluminium alloy powder described in above embodiment 1 ~ 5 is by Zn, Al, Mg and Si forms, below, associative list 1 provides some preferred embodiments of each moiety mass percent of zinc aluminium alloy powder of the present invention, but the content of each moiety of zinc aluminium alloy powder of the present invention is not limited to listed numerical value in this table, and it should be noted that, although give the mass percent numerical value of Related Component in table 1, but these are described as essential features, be all as preferred condition, all to provide technical intelligence of the present invention in more detail, and described as prerequisite of the present invention.
The each moiety mass percentage content (%) of table 1 zinc aluminium alloy powder
The performance test of the coating of the Non-chromium Zn-al Coating protective system containing magnesium-silicon of above-mentioned 5 kinds of embodiments is as follows:
(1) erosion resistance of coating
Adopt resistance to ammonium nitrate and salt-fog test two kinds of method tests.
Neutral salt spray test is undertaken by GB/T1771 " the resistance to 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) DEG C, continuous spraying, records specimen surface corrosion condition simultaneously.
The operation steps of resistance to ammonium nitrate test is as follows: in beaker, prepare the ammonium nitrate solution of 20%, beaker is put into water bath with thermostatic control and be heated to (70 ± 1) DEG C.(with thermometer measure and control bath temperature), all or part of dipping of the model that will test wherein, hangs fixing, and records the time that red rust appears in model.
(2) shock-resistance of coating
GB/T l732-1993 " the shock-resistant assay method of paint film " is adopted to judge the shock-resistance of coating.Step is as follows: lain in upward on anvil by japanning test plate (panel) paint film, and the test plate (panel) part edge that is hit is not less than 15mm, and the border of each shock point must not be less than 15mm.Weight borrows control device to be fixed on a certain height (this height is specified by product standard or decides through consultation) of slide cartridge, and pressing control knob, namely weight freely falls within drift.Mention weight, take out test plate (panel), record weight falls within the height on test plate (panel).Same test plate (panel) carries out 3 Secondary Shocks tests.Observe with 4 times of magnifying glasses, judge that paint film has flawless, wrinkle and the phenomenon such as to peel off.
(3) coating humidity resistance
GB/T1740-1979 " paint film wet-heat resisting assay method " is adopted to judge the humidity resistance of coating.
Performance test data:
Certain marine oil company drilling well vital part drill conductor (material 35CrMo), namely the former protective treatment adopting routine, only produce significant corrosion after the several months.Adopt coating of the present invention on phosphatize phosphate coat basis, apply formation 30 μm of thick coatings, show that its main performance index reached is in seawater splash band environment through accelerated corrosion analog reslt:
| The Neutral Salt Spray Corrosion life-span | 300 DEG C of humidity resistance life-spans | Coating shock-resistance | The ammonium nitrate fast erosion life-span | |
| Embodiment 1 | Be greater than 1400 hours | Be greater than 240 hours | 50N | Be greater than 9 hours |
| Embodiment 2 | Be greater than 1200 hours | Be greater than 200 hours | 50N | Be greater than 8 hours |
| Embodiment 3 | Be greater than 1200 hours | Be greater than 200 hours | 50N | Be greater than 8 hours |
| Embodiment 4 | Be greater than 1200 hours | Be greater than 200 hours | 50N | Be greater than 8 hours |
| Embodiment 5 | Be greater than 1200 hours | Be greater than 200 hours | 50N | Be greater than 8 hours |
Claims (2)
1., containing a Non-chromium Zn-al Coating protective system for magnesium-silicon, it is characterized in that: be made up of by 3:1 mass ratio A, B two-component, wherein: the prescription quality per-cent of component A is:
The prescription quality per-cent of B component is:
The particle diameter of described nano silicon is 20 ~ 50nm;
Described zinc aluminium alloy powder is made up of Zn, Al, Mg, Si, and the mass percent of each component is: Zn:60% ~ 70%, Mg:0.5% ~ 0.8%, Si:0.5 ~ 1.0%, and surplus is Al.
2. a kind of Non-chromium Zn-al Coating protective system containing magnesium-silicon according to claim 1, it is characterized in that, preparation method is:
(1) first, by the formula in component A, take quantitative sodium lignosulfonate, benzotriazole, thio-diethylene glycol, triphenylphosphine dissolve in deionized water, under whipped state, then slowly add nano silicon, zinc aluminium alloy powder leaves standstill after stirring 2h;
(2) by the formula in B component, take quantitative zirconium tetrafluoride, γ-aminopropyl triethoxysilane, myo-Inositol hexaphosphate slowly join deionized water for stirring, slowly add cellaburate and ethanol while stirring after mixing, leave standstill after Keep agitation 2h;
(3) by the component A of standing more than 4h and B component in mass ratio 3:1 mix and obtain described Non-chromium Zn-al Coating protective system.
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| CN102199372A (en) * | 2011-04-12 | 2011-09-28 | 合肥云荣机电科技有限公司 | Graphene-La2Ti2O7/zinc-aluminum-zirconium corrosion resisting coating for polycrystalline silicon ingot casting furnace |
| CN102391762A (en) * | 2011-09-23 | 2012-03-28 | 北京国泰瑞华硅藻应用科技有限公司 | Epoxy abrasion-resisting anticorrosive paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102199372A (en) * | 2011-04-12 | 2011-09-28 | 合肥云荣机电科技有限公司 | Graphene-La2Ti2O7/zinc-aluminum-zirconium corrosion resisting coating for polycrystalline silicon ingot casting furnace |
| CN102391762A (en) * | 2011-09-23 | 2012-03-28 | 北京国泰瑞华硅藻应用科技有限公司 | Epoxy abrasion-resisting anticorrosive paint |
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