CN107557778A - A kind of composite passivant and its preparation method and application - Google Patents
A kind of composite passivant and its preparation method and application Download PDFInfo
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- CN107557778A CN107557778A CN201710820860.3A CN201710820860A CN107557778A CN 107557778 A CN107557778 A CN 107557778A CN 201710820860 A CN201710820860 A CN 201710820860A CN 107557778 A CN107557778 A CN 107557778A
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- composite passivant
- surfactant
- passivator
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- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 41
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000007797 corrosion Effects 0.000 claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims abstract description 33
- 239000004814 polyurethane Substances 0.000 claims abstract description 32
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920002635 polyurethane Polymers 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002738 chelating agent Substances 0.000 claims abstract description 19
- 239000004094 surface-active agent Substances 0.000 claims abstract description 19
- 238000007747 plating Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 19
- 238000002161 passivation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical group 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 claims description 9
- 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 description 9
- 235000002949 phytic acid Nutrition 0.000 claims description 9
- 239000000467 phytic acid Substances 0.000 claims description 9
- 229940068041 phytic acid Drugs 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 8
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 7
- 239000001263 FEMA 3042 Substances 0.000 claims description 7
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 7
- -1 phospho Chemical class 0.000 claims description 7
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 7
- 229940033123 tannic acid Drugs 0.000 claims description 7
- 235000015523 tannic acid Nutrition 0.000 claims description 7
- 229920002258 tannic acid Polymers 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000006166 lysate Substances 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000527 sonication Methods 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 125000001033 ether group Chemical group 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 7
- 230000007935 neutral effect Effects 0.000 abstract description 4
- 229910001430 chromium ion Inorganic materials 0.000 abstract description 3
- 239000002932 luster Substances 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 27
- 239000003795 chemical substances by application Substances 0.000 description 12
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005246 galvanizing Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 150000001721 carbon Chemical group 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 2
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004532 chromating Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MFWFDRBPQDXFRC-LNTINUHCSA-N (z)-4-hydroxypent-3-en-2-one;vanadium Chemical compound [V].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O MFWFDRBPQDXFRC-LNTINUHCSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- GYUPBLLGIHQRGT-UHFFFAOYSA-N pentane-2,4-dione;titanium Chemical compound [Ti].CC(=O)CC(C)=O GYUPBLLGIHQRGT-UHFFFAOYSA-N 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of composite passivant and its preparation method and application, the passivator contains following components：The 600g/L of acrylic acid 200；The 100g/L of polyurethane 40；The 0.05g/L of graphene 0.005；The 4g/L of chelating agent 2；The 15g/L of corrosion inhibiter 8；The 15g/L of surfactant 5.The composite passivant that the present invention obtains can form the passivating film of one layer of water white transparency on plating piece surface, and product has metallic luster；Chromium ion is free of in composite passivant, health and ecological environment will not be damaged.Composite passivant that the present invention obtains while the corrosion resistance of plating piece can be improved, through 5% neutral salt spray test, average salt-fog resistant time reaches 81h, and the protection good to workpiece can be realized under harsh working condition, is had a good application prospect.
Description
Technical field
The present invention relates to hot-dip technical field, and in particular to a kind of composite passivant and its preparation method and application.
Background technology
It is zinc-plated to refer to plate one layer of zinc on the surface of metal, alloy or other materials to play the effects such as attractive in appearance, antirust
Process for treating surface, the method mainly used are hot-dips.In dry air, zinc coat corrosion resistance is good, it is not easy to quilt
Corrosion.But in wet environment, can be with oxygen, carbon dioxide and othersization after condensate is adhered to Several Thiourea Derivatives on Zinc Plate Surface
Learn gas or material is had an effect, form a kind of mordant solution, this solution can be used as electrolyte and chemical stability
Poor zinc layers occur electrochemical corrosion and produce " white rust ", have a strong impact on the outward appearance and quality of plating piece.
Passivation is a kind of currently used method protected to the coat of metal, because metal and oxidizing substance are made
With it is good in a kind of very thin, fine and close, covering performance of metal surface generation during, effect, be firmly adsorbed on metal watch
Passivating film on face.This tunic mutually exists in independent, plays metal and the completely separated effect of corrosive medium, prevent metal and
Corrosive medium contacts, and forms passive state so that metal stops dissolving substantially and reaches etch-proof effect.
For hot-dip industry, the passivation technology commonly used both at home and abroad at present is chromating, but this blunt containing chromium
Agent is easily carcinogenic, toxic, and liquid waste processing is more difficult, and human body and environment can be caused greatly to endanger.As science and technology is entered
The enhancing of step and mankind's environmental protection ideas, nontoxic, environmentally friendly chromium-free deactivation is studied to replace chromating to turn into current research
Emphasis.Such as CN102747352A discloses a kind of passivator for hot-dip galvanizing sheet steel, including the group of water and following concentration
Point：Nano-meter SiO_2230g/L-90g/L, water soluble acrylic resin 30g/L-60g/L, phytic acid and/or phosphatase 24 0g/L-80g/L,
Titanium acetylacetone 3g/L-12g/L, vanadium acetylacetonate 10g/L-30g/L and isopropanol 50g/L-100g/L.CN105839098A is public
A kind of hot-dip galvanizing sheet steel chrome-free tanning agent and preparation method thereof has been opened, has been included according to mass fraction meter：Phytic acid 25-40 parts, silicon
Sour sodium 8-15 parts, sodium citrate 10-18 parts, rosin resin 5-16 parts, polytetrafluoroethylene (PTFE) concentration dispersion liquid 15-25 parts, sulfonation wood
Quality 6-14 parts, ethanol 18-30 parts, water 20-30 parts.CN105887066A discloses a kind of corrosion passivator, and each composition is by weight
Measure part proportioning：Acrylic emulsion 5-10 parts, inversion accelerating agent tannic acid 10-20 parts, bleeding agent isopropanol 70-80 parts, auxiliary agent without
Water-ethanol 150-200 parts, film forming agent phosphatase 11 50-210 parts, inversion accelerating agent lactic acid 20-30 parts, butyl glycol ether 25-30 parts,
Water 350-425 parts.
There is above-mentioned chrome-free tanning agent raw material to be easy to get, high Scratch Resistance and many advantages, such as high derusting property, but its anti-corruption
Erosion ability is generally insufficient, and average salt-fog resistant time is 70h or so, it is difficult to meets under the harsh working condition such as high temperature, damp and hot to plating
The protection of part, it is impossible to reach the requirement of plant produced.Therefore develop a kind of chrome-free tanning agent of high corrosion-resistant and just seem and particularly must
Will.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of composite passivant and its preparation method and application, this is blunt
Chromium ion is free of in agent, reduces the harm to environment；Plating piece has metallic luster after passivation, obtains good surface effect
Fruit, while the corrosion resistance of plating piece can be greatly improved, it is a kind of novel environment friendly passivator of excellent performance.
The technical solution adopted by the present invention is：A kind of composite passivant is provided, the passivator contains following components：Propylene
Sour 200-600g/L；Polyurethane 40-100g/L；Graphene 0.005-0.05g/L；Chelating agent 2-4g/L；Corrosion inhibiter 8-15g/L；
Surfactant 5-15g/L.
According to the present invention, the content of acrylic acid is 200-600g/L in the composite passivant, for example, can be 200g/L,
230g/L、250g/L、280g/L、300g/L、330g/L、350g/L、380g/L、400g/L、430g/L、450g/L、480g/L、
Specific point value between 500g/L, 530g/L, 550g/L, 580g/L or 600g/L, and above-mentioned numerical value, as space is limited and for
Concise consideration, the present invention no longer exclusive list.
According to the present invention, the content of polyurethane is 40-100g/L in the composite passivant, for example, can be 40g/L,
45g/L, 50g/L, 55g/L, 60g/L, 65g/L, 70g/L, 75g/L, 80g/L, 85g/L, 90g/L, 95g/L or 100g/L, with
And the specific point value between above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the content of graphene is 0.005-0.05g/L in the composite passivant, such as can be
0.005g/L、0.01g/L、0.015g/L、0.02g/L、0.025g/L、0.03g/L、0.035g/L、0.04g/L、0.045g/L
Or the specific point value between 0.05g/L, and above-mentioned numerical value, as space is limited and for concise consideration, no longer limit of the invention
Enumerate.
According to the present invention, the chelating agent is phytic acid and/or tannic acid；The content of chelating agent is 2- in the passivator
4g/L, such as can be 2g/L, 2.3g/L, 2.5g/L, 2.8g/L, 3g/L, 3.3g/L, 3.5g/L, 3.8g/L or 4g/L, and
Specific point value between above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the corrosion inhibiter is organic phospho acid, such as can be 1-hydroxy ethylidene-1,1-diphosphonic acid, the methene phosphine of amino three
Acid, diethylenetriamine pentamethylenophosphonic acid etc., as space is limited and for concise consideration, the present invention no longer exclusive list.Institute
The content for stating corrosion inhibiter is 8-15g/L, for example, can be 8g/L, 9g/L, 10g/L, 11g/L, 12g/L, 13g/L, 14g/L or
Specific point value between 15g/L, and above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the surfactant is ether, such as can be AEO, alkyl, polyether, nonyl
Base phenol polyethenoxy ether etc., as space is limited and for concise consideration, the present invention no longer exclusive list.The content of surfactant
For 5-15g/L, for example, can be 5g/L, 6g/L, 7g/L, 8g/L, 9g/L, 10g/L, 11g/L, 12g/L, 13g/L, 14g/L or
Specific point value between 15g/L, and above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list.
The present invention also protects the preparation method of above-mentioned composite passivant, and this method comprises the following steps：
(1) surfactant, corrosion inhibiter and chelating agent are placed in respective reactor respectively by formula ratio, Ran Houfen
Not plus water heating stirring, solution temperature are 50-70 DEG C, and stirring adds the amount of water should not be too many to being completely dissolved, and guarantees upper
It is completely dissolved under the conditions of stating；Then the charging by the lysate of three according to surfactant, corrosion inhibiter, chelating agent
Order is mixed, and is stirred continuously at 50-70 DEG C to being well mixed, is cooled to room temperature and obtains mixed solution；
(2) acrylic acid is added in the mixed solution of step (1) by formula ratio, stirring is to being completely dissolved；
(3) polyurethane is added in the solution that step (2) obtains by formula ratio, stirred to well mixed；
(4) water is added into the graphene of formula ratio, then in agitated under sonication 3-5h, to being completely dissolved, is obtained transparent
Graphene solution；
(5) graphene solution that step (4) obtains is added in the solution of step (3), then added water, will be whole molten
Liquid is assigned to 1L, and the composite passivant is obtained after stirring.
According to the present invention, the solution temperature of the step (1) is 50-70 DEG C, for example, can be 50 DEG C, 53 DEG C, 55 DEG C, 58
DEG C, 60 DEG C, 63 DEG C, 65 DEG C, 68 DEG C or 70 DEG C, with the specific point value between the above-mentioned numerical value of technology, as space is limited and for simplicity
Consideration, the present invention no longer exclusive list.
It is the currently preferred process for preparation to composite passivant above, but it cannot function as the limit to the present invention
System, process for preparation can suitably be adjusted according to physical condition.
Composite passivant of the present invention can be used for the passivation of the plating piece of hot-dip.
Compared with prior art, the invention has the advantages that：
1) chromium ion is free of in composite passivant of the present invention, health and ecological environment will not be damaged.This is matched somebody with somebody
Side is using acrylic acid as primary raw material, heat-resisting after its film forming of exclusive use acrylic acid with good resistant, weather-proof and solvent resistance
Property and water resistance are poor, and hot sticky cold crisp, limit its development and application in galvanizing chromium-free deactivation；The application introduces poly-
Urethane, make acrylic acid compound with polyurethane, can be formed on plating piece surface has good gloss, and it is heat-resisting, water resistance is good
Passivating film；Graphene is added in the formula simultaneously, a small amount of graphene is added in the composite solution of acrylic acid and polyurethane,
It can form the fine and close barrier layer of one layer of individual layer with producing synergy therebetween, prevent the entrance of corrosive medium, energy
Effectively improve the corrosion resistance of galvanized part.Graphene is the two-dimension single layer crystal being made up of carbon atom hexagonal structure close-packed arrays, stone
Black alkene structure is highly stable, and the connection between each carbon atom is very flexible, and when applying external mechanical force, carbon atom face is just bent
Deformation, so that carbon atom need not be rearranged to adapt to external force, Stability Analysis of Structures is also maintained for, graphene has larger ratio
Surface area, is the hydrophobic material of electron rich, the shortcomings that effectively compensate for acrylic acid poor water resistance.
2) chelating agent, corrosion inhibiter and surfactant are added simultaneously in the application passivator, the chelating agent can promote blunt
The combination of agent and metal ion, corrosion inhibiter can slow down material corrosion, and surfactant can improve the solubility of organic matter, drop
Low surface tension, contribute to whole passivator to form an organic whole, play one's part to the full.
3) show that composite passivant of the present invention can greatly improve plating piece through 5% neutral salt spray test (GB12335) test
Corrosion resistance, for salt-fog resistant time in more than 75h, average salt-fog resistant time reaches 81h, can be in the harsh work such as high temperature, damp and hot
The good protection to workpiece is realized under the conditions of condition.
4) composite passivant of the present invention is used in galvanizing, can form the passivation of one layer of water white transparency on plating piece surface
Film, the metallic luster of former coating will not be covered, product brightness is good, beautiful appearance.
5) charging sequence of each raw material is strictly controlled in preparation method of the present invention, ensures that each step can be fully molten
Solution, contributes to each component to give full play to synergy, obtained passivator resistance to corrosion significantly increases.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is only to aid in understanding the present invention, is not construed as the concrete restriction to the present invention.
Composite passivant of the present invention, the passivator contain following components：Acrylic acid 200-600g/L；Polyurethane 40-
100g/L；Graphene 0.005-0.05g/L；Chelating agent 2-4g/L；Corrosion inhibiter 8-15g/L；Surfactant 5-15g/L.
The preparation method of above-mentioned composite passivant, this method comprise the following steps：
(1) surfactant, corrosion inhibiter and chelating agent are placed in respective reactor respectively by formula ratio, Ran Houfen
Not plus water heating stirring, solution temperature are 50-70 DEG C, and stirring adds the amount of water should not be too many to being completely dissolved, and guarantees upper
It is completely dissolved under the conditions of stating；Then the charging by the lysate of three according to surfactant, corrosion inhibiter, chelating agent
Order is mixed, and is stirred continuously at 50-70 DEG C to being well mixed, is cooled to room temperature and obtains mixed solution；
(2) acrylic acid is added in the mixed solution of step (1) by formula ratio, stirring is to being completely dissolved；
(3) polyurethane is added in the solution that step (2) obtains by formula ratio, stirred to well mixed；
(4) water is added into the graphene of formula ratio, then in agitated under sonication 3-5h, to being completely dissolved, is obtained transparent
Graphene solution；
(5) graphene solution that step (4) obtains is added in the solution of step (3), then added water, will be whole molten
Liquid is assigned to 1L, and the composite passivant is obtained after stirring.
Embodiment 1
Each component and its mass concentration are as shown in table 1 in the composite passivant that the present embodiment provides：
Table 1
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 300 |
| Polyurethane | -[-O-CONH-]n- | 50 |
| Graphene | C | 0.01 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Phytic acid | C6H18024P6 | 4 |
Above-mentioned composite passivant is prepared in accordance with the following methods：
(1) 10g AEOs, 10g 1-hydroxy ethylidene-1,1-diphosphonic acids and 4g phytic acid are respectively placed in respective anti-
Answer in device, then add water heating respectively, and be stirred continuously, solution temperature is 60 DEG C, and stirring makes each whole dissolvings, then will
The lysate of three is mixed according to the charging sequence of surfactant, corrosion inhibiter, chelating agent, is constantly stirred at 50-70 DEG C
Mix to being well mixed, be cooled to room temperature and obtain mixed solution；
(2) 300g acrylic acid is added in step (1) obtained mixed liquor, stirring is to being completely dissolved；
(3) 50g polyurethane is added in step (2) obtained solution, magnetic agitation 2h, to being mixed thoroughly；
(4) water is added into 0.01g graphene powders, then in agitated under sonication 4h, to being completely dissolved, is obtained transparent
Graphene solution；
(5) graphene solution that step (4) obtains is added in the solution that step (3) obtains, then added water, will be whole
Solution is assigned to 1L, and the composite passivant is obtained after stirring.
Embodiment 2
Each component and its mass concentration are as shown in table 2 in the composite passivant that the present embodiment provides：
Table 2
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 50 |
| Graphene | C | 0.01 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Phytic acid | C6H18024P6 | 4 |
Preparation method is the same as embodiment 1.
Embodiment 3
Each component and its mass concentration are as shown in table 3 in the composite passivant that the present embodiment provides：
Table 3
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 500 |
| Polyurethane | -[-O-CONH-]n- | 50 |
| Graphene | C | 0.01 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Phytic acid | C6H18024P6 | 4 |
Preparation method is the same as embodiment 1.
Embodiment 4
Each component and its mass concentration are as shown in table 4 in the composite passivant that the present embodiment provides：
Table 4
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 60 |
| Graphene | C | 0.01 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Phytic acid | C6H18024P6 | 4 |
Preparation method is the same as embodiment 1.
Embodiment 5
Each component and its mass concentration are as shown in table 5 in the composite passivant that the present embodiment provides：
Table 5
Preparation method is the same as embodiment 1.
Embodiment 6
Each component and its mass concentration are as shown in table 6 in the composite passivant that the present embodiment provides：
Table 6
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 60 |
| Graphene | C | 0.03 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Tannic acid | C76H52O46 | 4 |
Preparation method is the same as embodiment 1.
Embodiment 7
Each component and its mass concentration are as shown in table 7 in the composite passivant that the present embodiment provides：
Table 7
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 70 |
| Graphene | C | 0.02 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Tannic acid | C76H52O46 | 4 |
Preparation method is the same as embodiment 1.
Embodiment 8
Each component and its mass concentration are as shown in table 8 in the composite passivant that the present embodiment provides：
Table 8
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 80 |
| Graphene | C | 0.02 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
| Tannic acid | C76H52O46 | 4 |
Preparation method is the same as embodiment 1.
Comparative example 1
Compared with Example 1, in addition to not adding acrylic acid in the composite passivant, other components and concentration and system
Preparation Method and all same of embodiment 1.
Comparative example 2
Compared with Example 1, except not adding acrylic acid in the composite passivant, and the concentration of polyurethane is adjusted to
Outside 30g/L, other components and concentration and preparation method and all same of embodiment 1.
Comparative example 3
Compared with Example 1, in addition to not adding polyurethane in the composite passivant, other components and concentration and system
Preparation Method and all same of embodiment 1.
Comparative example 4
Compared with Example 1, except not adding polyurethane in the composite passivant, and the concentration of acrylic acid is adjusted to
Outside 150g/L, other components and concentration and preparation method and all same of embodiment 1.
Comparative example 5
Compared with Example 1, in addition to not adding graphene in the composite passivant, other components and concentration and system
Preparation Method and all same of embodiment 1.
Comparative example 6
Compared with Example 1, except not adding graphene, and the concentration of acrylic acid is adjusted to outside 150g/L, other components
With concentration and preparation method and all same of embodiment 1.
Comparative example 7
Each component and its mass concentration are as shown in table 9 in this comparative example passivator：
Table 9
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 80 |
| Graphene | C | 0.02 |
Preparation method：Acrylic acid and polyurethane are dissolved in water respectively by formula ratio, then added the lysate of acrylic acid
Enter into polyurethane, stir to being well mixed, obtain mixed solution；Water is added into the graphene of formula ratio, then in ultrasound
Lower stirring 4h, to being completely dissolved, obtain transparent graphene solution；Graphene solution obtained above is added to above-mentioned mix
Close in solution, then add water, whole solution is assigned to 1L, passivator is obtained after stirring.
Comparative example 8
Each component and its mass concentration are as shown in table 10 in the passivator that this comparative example provides：
Table 10
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 80 |
| Graphene | C | 0.02 |
| AEO | R-O-(CH2CH2O)n-H | 10 |
Preparation method is the same as embodiment 1.
Comparative example 9
Each component and its mass concentration are as shown in table 11 in the composite passivant that this comparative example provides：
Table 11
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 80 |
| Graphene | C | 0.02 |
| 1-hydroxy ethylidene-1,1-diphosphonic acid | C2H8O7P2 | 10 |
Preparation method is the same as embodiment 1.
Comparative example 10
Each component and its mass concentration are as shown in table 11 in the composite passivant that this comparative example provides：
Table 12
| Title | Molecular formula | Mass concentration (g/L) |
| Acrylic acid | C3H4O2 | 400 |
| Polyurethane | -[-O-CONH-]n- | 80 |
| Graphene | C | 0.02 |
| Tannic acid | C76H52O46 | 4 |
Preparation method is the same as embodiment 1.
Corrosion resistance is tested：
Composite passivant made from embodiment 1-8 and comparative example 1-10 is applied to the passivation of heat zinc coating plate.Except passivation
Agent is different outer, and heat zinc coating plate size used and other conditions are identical, and concrete operations are：Galvanizing → sodium hydroxide
Alkali cleaning → absolute ethyl alcohol alcohol washes → light extraction → passivation (chemical immersion) → drying.Passivation time is 10s, and passivation temperature is 30 DEG C.
Hot-dip galvanizing sheet steel after passivation is placed in salt spray test chamber, carries out neutral salt spray test (according to GB-6458-86).It is specific real
It is as follows to test condition：The concentration of sodium chloride solution is 5%, and pH value of solution 6-7,35 DEG C of test temperature, the sedimentation rate of salt fog is in 1-
Between 2ml/80cmh.Neutral salt spray test the results are shown in Table 13.
Table 13
| Passivator is numbered | Salt-fog resistant time (h) |
| Embodiment 1 | 78 |
| Embodiment 2 | 78 |
| Embodiment 3 | 79 |
| Embodiment 4 | 80 |
| Embodiment 5 | 82 |
| Embodiment 6 | 79 |
| Embodiment 7 | 84 |
| Embodiment 8 | 88 |
| Comparative example 1 | 69 |
| Comparative example 2 | 66 |
| Comparative example 3 | 71 |
| Comparative example 4 | 66 |
| Comparative example 5 | 69 |
| Comparative example 6 | 64 |
| Comparative example 7 | 58 |
| Comparative example 8 | 63 |
| Comparative example 9 | 62 |
| Comparative example 10 | 64 |
Product decay resistance after the passivator passivation that the present invention obtains is good, the passivator that the first eight group embodiment provides
Sample salt-fog resistant time after passivation is not less than 78h, and average salt-fog resistant time is 81 hours, can be tight in high temperature, damp and hot etc.
Used under the conditions of severe, industrial requirement can be met.It is resistance to much larger than after the Cr VI color passivating agent passivation of national regulations
Salt fog standard 72h, salt spray resistance standard 24h after the passivation of Cr VI blue-white passivator, salt spray resistance standard after trivalent chromium passivator passivation
75h.For composite passivant provided by the invention is compared with prior art, the corrosion resistance of plating piece can be greatly improved.
From comparative example 1-10, for the present invention, acrylic acid, polyurethane and graphene, surfactant, chelating
Agent and corrosion inhibiter are essential component, generate synergy between each other.When lacking any one component, its is resistance to
Corrosivity declines substantially, and minimal amount of graphene can greatly improve the corrosion resisting property of composite passivant.Comparative example 5 and reality
Apply example 1 to compare, in the presence of no graphene, its corrosion resistance reduces clearly.Binding experiment as shown by data the application third
Olefin(e) acid and polyurethane have collaboration facilitation.
As can be seen that the optimization formula of the application composite passivant is acrylic acid 400g/L from above-mentioned data；Polyurethane
80g/L；Graphene 0.02g/L；Chelating agent 4g/L；Corrosion inhibiter 10g/L；Formula in surfactant 10g/L, i.e. embodiment 8.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, selection of concrete mode etc., all fall within power of the present invention
Within the scope of protection domain and disclosure that profit requires.
Claims (7)
1. a kind of composite passivant, the passivator contains following components：Acrylic acid 200-600g/L；Polyurethane 40-100g/
L；Graphene 0.005-0.05g/L；Chelating agent 2-4g/L；Corrosion inhibiter 8-15g/L；Surfactant 5-15g/L.
2. a kind of composite passivant, the passivator contains following components：Acrylic acid 300-500g/L；Polyurethane 50-80g/L；
Graphene 0.01-0.03g/L；Chelating agent 2-4g/L；Corrosion inhibiter 8-15g/L；Surfactant 5-15g/L.
3. passivator as claimed in claim 1 or 2, it is characterised in that the chelating agent is phytic acid and/or tannic acid.
4. passivator as claimed in claim 1 or 2, it is characterised in that the corrosion inhibiter is organic phospho acid.
5. passivator as claimed in claim 1 or 2, it is characterised in that the surfactant is ether.
6. a kind of preparation method of any described composite passivants of claim 1-5, this method comprise the following steps：
（1）Surfactant, corrosion inhibiter and chelating agent are placed in respective reactor respectively by formula ratio, then added respectively
Water heating stirring, solution temperature are 50-70 DEG C, and stirring is to being completely dissolved；Then by the lysate of three according to surfactant,
Corrosion inhibiter, the charging sequence of chelating agent are mixed, and are stirred continuously at 50-70 DEG C to being well mixed, are cooled to room temperature and obtain
Mixed solution；
（2）Acrylic acid is added to step by formula ratio（1）Mixed solution in, stirring is to being completely dissolved；
（3）Polyurethane is added into step by formula ratio（2）In obtained solution, stir to well mixed；
（4）Water is added into the graphene of formula ratio, then in agitated under sonication 3-5h, to being completely dissolved, obtains transparent stone
Black alkene solution；
（5）By step（4）Obtained graphene solution is added to step（3）Solution in, then add water, whole solution matched somebody with somebody
To 1L, the composite passivant is obtained after stirring.
7. the application of any described composite passivants of a kind of claim 1-6, it is characterised in that the composite passivant can be used
In the passivation of the plating piece of hot-dip.
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| CN110724985A (en) * | 2019-11-13 | 2020-01-24 | 珠海市玛斯特五金塑胶制品有限公司 | Sealing treatment liquid, transparent corrosion-resistant film and preparation method thereof |
| CN110983318A (en) * | 2019-12-17 | 2020-04-10 | 昆明理工大学 | Organic-inorganic environment-friendly composite color passivation solution and preparation method thereof |
| CN111534815A (en) * | 2020-05-22 | 2020-08-14 | 山东大学 | Pretreatment liquid capable of forming washable natural color conversion film on metal surface and preparation method thereof |
| CN114622195A (en) * | 2022-02-21 | 2022-06-14 | 华鼎国联四川动力电池有限公司 | Method for passivating zinc matrix |
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