CN102409325B - Environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and method for preparing chemical conversion film - Google Patents
Environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and method for preparing chemical conversion film Download PDFInfo
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- CN102409325B CN102409325B CN201110399391.5A CN201110399391A CN102409325B CN 102409325 B CN102409325 B CN 102409325B CN 201110399391 A CN201110399391 A CN 201110399391A CN 102409325 B CN102409325 B CN 102409325B
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- Prior art keywords
- chemical conversion
- silane
- acid
- chromium
- gamma
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- 239000000126 substance Substances 0.000 title claims abstract description 95
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 73
- 238000005260 corrosion Methods 0.000 title claims abstract description 41
- 230000007797 corrosion Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 title claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 18
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000077 silane Inorganic materials 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000005764 inhibitory process Effects 0.000 claims abstract description 5
- 238000004381 surface treatment Methods 0.000 claims abstract description 3
- 238000007739 conversion coating Methods 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 11
- 238000005238 degreasing Methods 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- 235000011007 phosphoric acid Nutrition 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 6
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 6
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 5
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 5
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 5
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 claims description 5
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 claims description 5
- XYVAYAJYLWYJJN-UHFFFAOYSA-N 2-(2-propoxypropoxy)propan-1-ol Chemical compound CCCOC(C)COC(C)CO XYVAYAJYLWYJJN-UHFFFAOYSA-N 0.000 claims description 4
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 4
- 150000000703 Cerium Chemical class 0.000 claims description 4
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 4
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 4
- NOKSMMGULAYSTD-UHFFFAOYSA-N [SiH4].N=C=O Chemical compound [SiH4].N=C=O NOKSMMGULAYSTD-UHFFFAOYSA-N 0.000 claims description 4
- 150000001343 alkyl silanes Chemical class 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- 150000001868 cobalt Chemical class 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002696 manganese Chemical class 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical compound [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 4
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 4
- IYMSIPPWHNIMGE-UHFFFAOYSA-N silylurea Chemical compound NC(=O)N[SiH3] IYMSIPPWHNIMGE-UHFFFAOYSA-N 0.000 claims description 4
- 159000000008 strontium salts Chemical class 0.000 claims description 4
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000003681 vanadium Chemical class 0.000 claims description 4
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims description 4
- FSJSYDFBTIVUFD-SUKNRPLKSA-N (z)-4-hydroxypent-3-en-2-one;oxovanadium Chemical compound [V]=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FSJSYDFBTIVUFD-SUKNRPLKSA-N 0.000 claims description 3
- KKYDYRWEUFJLER-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F KKYDYRWEUFJLER-UHFFFAOYSA-N 0.000 claims description 3
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 claims description 3
- LVNLBBGBASVLLI-UHFFFAOYSA-N 3-triethoxysilylpropylurea Chemical compound CCO[Si](OCC)(OCC)CCCNC(N)=O LVNLBBGBASVLLI-UHFFFAOYSA-N 0.000 claims description 3
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- 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 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 3
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 3
- OZECDDHOAMNMQI-UHFFFAOYSA-H cerium(3+);trisulfate Chemical compound [Ce+3].[Ce+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O OZECDDHOAMNMQI-UHFFFAOYSA-H 0.000 claims description 3
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 3
- FJDJVBXSSLDNJB-LNTINUHCSA-N cobalt;(z)-4-hydroxypent-3-en-2-one Chemical compound [Co].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FJDJVBXSSLDNJB-LNTINUHCSA-N 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- SCPWMSBAGXEGPW-UHFFFAOYSA-N dodecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OC)(OC)OC SCPWMSBAGXEGPW-UHFFFAOYSA-N 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- 229940099596 manganese sulfate Drugs 0.000 claims description 3
- 239000011702 manganese sulphate Substances 0.000 claims description 3
- 235000007079 manganese sulphate Nutrition 0.000 claims description 3
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- MOVRCMBPGBESLI-UHFFFAOYSA-N prop-2-enoyloxysilicon Chemical compound [Si]OC(=O)C=C MOVRCMBPGBESLI-UHFFFAOYSA-N 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 claims description 3
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910000352 vanadyl sulfate Inorganic materials 0.000 claims description 3
- UUUGYDOQQLOJQA-UHFFFAOYSA-L vanadyl sulfate Chemical compound [V+2]=O.[O-]S([O-])(=O)=O UUUGYDOQQLOJQA-UHFFFAOYSA-L 0.000 claims description 3
- 229940041260 vanadyl sulfate Drugs 0.000 claims description 3
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- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims 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 claims description 2
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- DXODQEHVNYHGGW-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl-tris(trifluoromethoxy)silane Chemical compound FC(F)(F)O[Si](OC(F)(F)F)(OC(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F DXODQEHVNYHGGW-UHFFFAOYSA-N 0.000 claims description 2
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- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
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- 239000005711 Benzoic acid Substances 0.000 claims description 2
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 claims description 2
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- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
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- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- GTTSNKDQDACYLV-UHFFFAOYSA-N Trihydroxybutane Chemical compound CCCC(O)(O)O GTTSNKDQDACYLV-UHFFFAOYSA-N 0.000 claims description 2
- KIDJHPQACZGFTI-UHFFFAOYSA-N [6-[bis(phosphonomethyl)amino]hexyl-(phosphonomethyl)amino]methylphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCCCCCN(CP(O)(O)=O)CP(O)(O)=O KIDJHPQACZGFTI-UHFFFAOYSA-N 0.000 claims description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 2
- AZFUOHYXCLYSQJ-UHFFFAOYSA-N [V+5].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O Chemical compound [V+5].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O AZFUOHYXCLYSQJ-UHFFFAOYSA-N 0.000 claims description 2
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 claims description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 2
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims description 2
- 235000010233 benzoic acid Nutrition 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- XGZGKDQVCBHSGI-UHFFFAOYSA-N butyl(triethoxy)silane Chemical compound CCCC[Si](OCC)(OCC)OCC XGZGKDQVCBHSGI-UHFFFAOYSA-N 0.000 claims description 2
- SXPLZNMUBFBFIA-UHFFFAOYSA-N butyl(trimethoxy)silane Chemical compound CCCC[Si](OC)(OC)OC SXPLZNMUBFBFIA-UHFFFAOYSA-N 0.000 claims description 2
- PYPNFSVOZBISQN-LNTINUHCSA-K cerium acetylacetonate Chemical compound [Ce+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O PYPNFSVOZBISQN-LNTINUHCSA-K 0.000 claims description 2
- VZDYWEUILIUIDF-UHFFFAOYSA-J cerium(4+);disulfate Chemical compound [Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VZDYWEUILIUIDF-UHFFFAOYSA-J 0.000 claims description 2
- 229910000355 cerium(IV) sulfate Inorganic materials 0.000 claims description 2
- 229930016911 cinnamic acid Natural products 0.000 claims description 2
- 235000013985 cinnamic acid Nutrition 0.000 claims description 2
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 229940044175 cobalt sulfate Drugs 0.000 claims description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 2
- BAAAEEDPKUHLID-UHFFFAOYSA-N decyl(triethoxy)silane Chemical compound CCCCCCCCCC[Si](OCC)(OCC)OCC BAAAEEDPKUHLID-UHFFFAOYSA-N 0.000 claims description 2
- KQAHMVLQCSALSX-UHFFFAOYSA-N decyl(trimethoxy)silane Chemical compound CCCCCCCCCC[Si](OC)(OC)OC KQAHMVLQCSALSX-UHFFFAOYSA-N 0.000 claims description 2
- OTARVPUIYXHRRB-UHFFFAOYSA-N diethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](C)(OCC)CCCOCC1CO1 OTARVPUIYXHRRB-UHFFFAOYSA-N 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- CVQVSVBUMVSJES-UHFFFAOYSA-N dimethoxy-methyl-phenylsilane Chemical compound CO[Si](C)(OC)C1=CC=CC=C1 CVQVSVBUMVSJES-UHFFFAOYSA-N 0.000 claims description 2
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- ZLNAFSPCNATQPQ-UHFFFAOYSA-N ethenyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C=C ZLNAFSPCNATQPQ-UHFFFAOYSA-N 0.000 claims description 2
- CJCLDCFGJRZTSP-UHFFFAOYSA-N ethenyl-tri(propan-2-yl)silane Chemical compound CC(C)[Si](C=C)(C(C)C)C(C)C CJCLDCFGJRZTSP-UHFFFAOYSA-N 0.000 claims description 2
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 239000001530 fumaric acid Substances 0.000 claims description 2
- 239000000174 gluconic acid Substances 0.000 claims description 2
- 235000012208 gluconic acid Nutrition 0.000 claims description 2
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- 239000001630 malic acid Substances 0.000 claims description 2
- 235000011090 malic acid Nutrition 0.000 claims description 2
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 claims description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 claims description 2
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 claims description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 2
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 claims description 2
- YLBPOJLDZXHVRR-UHFFFAOYSA-N n'-[3-[diethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CCO[Si](C)(OCC)CCCNCCN YLBPOJLDZXHVRR-UHFFFAOYSA-N 0.000 claims description 2
- SLYCYWCVSGPDFR-UHFFFAOYSA-N octadecyltrimethoxysilane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC SLYCYWCVSGPDFR-UHFFFAOYSA-N 0.000 claims description 2
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 claims description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 2
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 2
- 229940089951 perfluorooctyl triethoxysilane Drugs 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 229960004889 salicylic acid Drugs 0.000 claims description 2
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims description 2
- UMBFGWVRZIHXCK-FDGPNNRMSA-L strontium;(z)-4-oxopent-2-en-2-olate Chemical compound [Sr+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O UMBFGWVRZIHXCK-FDGPNNRMSA-L 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 2
- PMQIWLWDLURJOE-UHFFFAOYSA-N triethoxy(1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F PMQIWLWDLURJOE-UHFFFAOYSA-N 0.000 claims description 2
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 2
- AVYKQOAMZCAHRG-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F AVYKQOAMZCAHRG-UHFFFAOYSA-N 0.000 claims description 2
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 claims description 2
- OYGYKEULCAINCL-UHFFFAOYSA-N triethoxy(hexadecyl)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC OYGYKEULCAINCL-UHFFFAOYSA-N 0.000 claims description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 2
- FZMJEGJVKFTGMU-UHFFFAOYSA-N triethoxy(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC FZMJEGJVKFTGMU-UHFFFAOYSA-N 0.000 claims description 2
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 claims description 2
- UWSYCPWEBZRZNJ-UHFFFAOYSA-N trimethoxy(2,4,4-trimethylpentyl)silane Chemical compound CO[Si](OC)(OC)CC(C)CC(C)(C)C UWSYCPWEBZRZNJ-UHFFFAOYSA-N 0.000 claims description 2
- XYJRNCYWTVGEEG-UHFFFAOYSA-N trimethoxy(2-methylpropyl)silane Chemical compound CO[Si](OC)(OC)CC(C)C XYJRNCYWTVGEEG-UHFFFAOYSA-N 0.000 claims description 2
- NMEPHPOFYLLFTK-UHFFFAOYSA-N trimethoxy(octyl)silane Chemical compound CCCCCCCC[Si](OC)(OC)OC NMEPHPOFYLLFTK-UHFFFAOYSA-N 0.000 claims description 2
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 claims description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 2
- IHIXIJGXTJIKRB-UHFFFAOYSA-N trisodium vanadate Chemical compound [Na+].[Na+].[Na+].[O-][V]([O-])([O-])=O IHIXIJGXTJIKRB-UHFFFAOYSA-N 0.000 claims description 2
- 229940005605 valeric acid Drugs 0.000 claims description 2
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 2
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229960001124 trientine Drugs 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 13
- 238000000576 coating method Methods 0.000 abstract description 13
- 238000007598 dipping method Methods 0.000 abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 239000011651 chromium Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 2
- 239000010452 phosphate Substances 0.000 abstract 2
- 238000010422 painting Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 12
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229910000755 6061-T6 aluminium alloy Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 2
- 150000002751 molybdenum Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 description 1
- FMGBDYLOANULLW-UHFFFAOYSA-N 3-isocyanatopropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCN=C=O FMGBDYLOANULLW-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- YVBOZGOAVJZITM-UHFFFAOYSA-P ammonium phosphomolybdate Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[O-]P([O-])=O.[O-][Mo]([O-])(=O)=O YVBOZGOAVJZITM-UHFFFAOYSA-P 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 description 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 229940116254 phosphonic acid Drugs 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- GRJISGHXMUQUMC-UHFFFAOYSA-N silyl prop-2-enoate Chemical compound [SiH3]OC(=O)C=C GRJISGHXMUQUMC-UHFFFAOYSA-N 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to the field of aluminum alloy surface treatment, in particular relates to an environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and an application thereof in an environmentally-friendly corrosion-resistant chromium-free chemical conversion film with aluminum alloy coating adhesion for ships, and solves the problems of incapability of meeting the requirements on corrosion resistance and coating adhesion in the current environmentally-friendly chemical conversion treating process. The prepared chemical conversion film has excellent corrosion resistance and coating adhesion, is convenient in construction and can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process. The environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid mainly comprises the components of silane, corrosion inhibition components and a solvent. The chromium-free chemical conversion film construction modes comprise dipping, roller painting and spraying, and the curing modes comprise natural curing and heating curing. The environmentally-friendly corrosion-resistant chromium-free chemical conversion film in the invention has excellent corrosion resistance and coating adhesion, can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process, and is applicable to aluminum alloys for ships such as 5xxx and 6xxx series aluminum alloys.
Description
Technical Field
The invention relates to the field of marine aluminum alloy surface treatment, in particular to an environment-friendly corrosion-resistant chromium-free chemical conversion solution and application thereof in an environment-friendly corrosion-resistant chromium-free chemical conversion film for improving the adhesion of a marine aluminum alloy coating (namely a preparation method of the chemical conversion film). The formed chemical conversion film has good corrosion resistance and coating adhesive force, is convenient to construct, and can be used for replacing the traditional chromium-containing chemical conversion and phosphating treatment process.
Background
As the aluminum alloy workpiece for the ship works in severe corrosion environments such as seawater, ocean atmosphere and the like for a long time, the surface of the aluminum alloy workpiece needs to be subjected to chemical conversion treatment to improve the corrosion resistance of an aluminum alloy matrix and the adhesive force of a subsequent organic coating. However, conventional treatment methods (such as chromate treatment and phosphating treatment) have been limited to use due to environmental pollution problems. And the emerging environment-friendly chemical conversion treatment processes are difficult to meet the requirements of corrosion resistance and coating adhesion at the same time. Therefore, it is urgent to develop an environment-friendly chromium-free chemical conversion technique having both good corrosion resistance and coating adhesion.
Disclosure of Invention
The invention aims to provide an environment-friendly corrosion-resistant chromium-free chemical conversion solution and application thereof in an environment-friendly corrosion-resistant chromium-free chemical conversion film for improving the adhesion of a marine aluminum alloy coating, and solves the problem that the existing environment-friendly chemical conversion treatment process is difficult to meet the requirements of corrosion resistance and coating adhesion at the same time.
The technical scheme of the invention is as follows:
an environment protection type anticorrosion chromium-free chemical conversion liquid is prepared from silane component, corrosion-retarding component and solvent. Wherein,
the silane component comprises one or more of alkyl silane, vinyl silane, acryloyloxy silane, phenyl silane, epoxy silane, mercapto silane, amino silane, ureido silane, isocyanate silane, fluorine-containing silane and the like, and the content of the silane component in the chromium-free chemical conversion solution is 0.5-30 wt%, preferably 1-20 wt%, and more preferably 2-15 wt%. Wherein,
the alkylsilane is selected from tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, n-butyltrimethoxysilane, isobutyltrimethoxysilane, n-butyltriethoxysilane, isobutyltriethoxysilane, n-octyltrimethoxysilane, isooctyltrimethoxysilane, n-octyltriethoxysilane, isooctyltriethoxysilane, decyltrimethoxysilane, decyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, hexadecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyltrimethoxysilane, octadecyltriethoxysilane.
The vinyl silane can be selected from one or more of vinyl methyl dimethoxy silane, vinyl trimethoxy silane, vinyl triethoxy silane, vinyl triisopropyl silane, vinyl tri (beta-methoxyethoxy) silane, and vinyl triacetoxy silane.
The acryloxysilane can be selected from one or more of gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, and gamma-methacryloxypropylmethyldimethoxysilane.
The phenylsilane is selected from one or more of phenyltrimethoxysilane, phenyltriethoxysilane, and phenylmethyldimethoxysilane.
The epoxy silane can be selected from one or more of gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-glycidoxypropylmethyldimethoxysilane, gamma-glycidoxypropylmethyldiethoxysilane, and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane.
The mercaptosilane can be selected from one or more of gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, gamma-mercaptopropylmethyldiethoxysilane, gamma-mercaptopropylmethyldimethoxysilane and gamma-mercaptopropylmethyldiethoxysilane.
The aminosilane may be one or more selected from gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, and N- (beta-aminoethyl) -gamma-aminopropylmethyldiethoxysilane.
The ureido silane may be selected from one or more of gamma ureido propyl trimethoxy silane and gamma-ureido propyl triethoxy silane.
The isocyanate silane can be selected from one or more of gamma-isocyanate propyl trimethoxy silane and gamma-isocyanate propyl triethoxy silane.
The fluorine-containing silane can be selected from one or more of perfluorooctyltrimethoxysilane, perfluorooctyltriethoxysilane, heptadecafluorodecyltrimethoxysilane, and heptadecafluorodecyltriethoxysilane.
The corrosion inhibition component comprises one or more of molybdenum salt, manganese salt, vanadium salt, cobalt salt, cerium salt or strontium salt. Wherein the molybdenum salt is selected from one or more of sodium molybdate, potassium molybdate, ammonium molybdate and ammonium phosphomolybdate. The manganese salt can be selected from one or more of manganese nitrate, manganese sulfate and potassium permanganate. The vanadium salt is selected from one or more of sodium orthovanadate, sodium metavanadate, ammonium orthovanadate, ammonium metavanadate, vanadyl sulfate, vanadium nitrate, vanadium acetylacetonate, and vanadyl acetylacetonate. The cobalt salt is selected from one or more of cobalt nitrate, cobalt sulfate, and cobalt acetylacetonate. The cerium salt is selected from one or more of cerium nitrate, cerium sulfate, ammonium ceric nitrate, ammonium ceric sulfate, and cerium acetylacetonate. The strontium salt can be selected from one or more of strontium nitrate, strontium sulfate, and strontium acetylacetonate. The content of the corrosion inhibition component in the chromium-free chemical conversion solution is 0.5-20 wt%, preferably 3-15 wt%, and more preferably 5-10 wt%.
The solvent comprises water and C1～C5Monohydric or polyhydric alcohols or C2～C4Alcohol ether. C1～C5The monohydric alcohol or polyhydric alcohol can be selected from one or more of methanol, ethanol, ethylene glycol, polyethylene glycol, n-propanol, isopropanol, propylene glycol, glycerol, n-butanol, isobutanol, sec-butanol, tert-butanol, butanediol, butanetriol, pentanol, pentanediol, etc. The ethyl, propyl or butyl cellosolve may be selected from one or more of ethylene glycol methyl ether, ethylene glycol propyl ether, ethylene glycol butyl ether, diethylene glycol ether, triethylene glycol ether, propylene glycol methyl ether, propylene glycol propyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, etc. The content of the solvent in the chromium-free chemical conversion solution is 50-99 wt%, preferably 60-95 wt%, and more preferably 70-90 wt%.
In addition, the environment-friendly chromium-free chemical conversion solution can also contain common additives such as a thickening agent, and the content of the additives in the chemical conversion solution is 0.1-1 wt%, preferably 0.25-0.75 wt%, and more preferably 0.3-0.5 wt%.
The chromium-free chemical conversion process comprises the following steps: degreasing → water washing → alkali etching → chromium-free chemical conversion → curing. Wherein,
the degreasing liquid adopted in the degreasing step comprises the following components: 7g/L of sodium hydroxide, 35g/L of sodium carbonate, 20g/L of sodium phosphate, 2g/L of sodium dodecyl benzene sulfonate and the balance of water; the degreasing step may use the following process: the temperature is 70 ℃, and the treatment time is 5-10 min.
The alkaline etching step adopts alkaline etching solution comprising the following components: 15g/L of sodium hydroxide and the balance of water; the alkaline etching step may use the following process: the temperature is 30-35 ℃ and the time is 30 s.
The environment-friendly corrosion-resistant chromium-free chemical conversion solution is prepared by uniformly mixing silane, a corrosion inhibition component, a solvent, an auxiliary agent and the like.
And (3) adjusting the pH value of the chromium-free chemical conversion solution by using a pH value regulator, wherein the pH value range of the chromium-free chemical conversion solution is 1-6, preferably 2-5, and more preferably 3-4. The pH value regulator comprises one or more than one of phosphoric acid, organic phosphonic acid, carboxylic acid, ammonia water or organic amine. The phosphoric acid may be selected from one or more of orthophosphoric acid, metaphosphoric acid, phosphorous acid and hypophosphorous acid. The organic phosphonic acid can be selected from one or more of aminotrimethylene phosphonic acid, hydroxyethylene diphosphonic acid, hexamethylenediamine tetramethylene phosphonic acid, diethylenetriamine pentamethyl phosphonic acid, diethylenetriamine pentamethylene phosphonic acid, inositol hexaphosphoric acid, etc. The carboxylic acid is selected from one or more of formic acid, acetic acid, propionic acid, butyric acid, valeric acid, benzoic acid, malonic acid, succinic acid, glutaric acid, citric acid, tartaric acid, malic acid, salicylic acid, cinnamic acid, maleic acid, fumaric acid, gluconic acid, glucoheptonic acid, etc. The organic amine comprises one or more of ethylenediamine, triethanolamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine and pentaethylenehexamine.
The construction mode of the chromium-free chemical conversion film comprises dipping, roll coating or spraying, the curing mode comprises natural curing or heating curing, and the heating curing is carried out in an oven at the temperature of 150-.
The invention has the beneficial effects that:
1. the environment-friendly chromium-free chemical conversion solution can be prepared into concentrated solution for convenient storage and transportation.
2. The environment-friendly chromium-free chemical conversion film has good corrosion resistance and coating adhesion, and can be used for replacing the traditional chromium-containing chemical conversion and phosphating treatment process.
3. The invention is applicable to marine aluminum alloys including 5xxx and 6xxx series aluminum alloys.
Detailed Description
The following examples are given in detail, without limiting the scope of the invention:
example 1
12.5g of vinyltriethoxysilane and 6.0g of gamma-methacryloxypropyltrimethoxysilane are placed in a 1000mL three-necked flask equipped with a temperature controller, a stirrer and an addition funnel, 650g of isopropanol is then added, the temperature is heated to 50 ℃, after the stirrer is started, 90g of an aqueous solution containing 5.0g of manganese sulfate and 4.5g of vanadyl sulfate is slowly dropped, the pH value is adjusted to 3.6 by 5wt% of orthophosphoric acid, the solution is kept warm for 3 hours, then the solution is taken out and cooled to the room temperature.
The aluminum alloy plate degreasing process comprises the following steps:
sodium hydroxide 7g/L sodium carbonate 35g/L
Sodium phosphate 20g/L sodium dodecyl benzene sulfonate 2g/L
The balance of water.
The temperature is 70 ℃ and the time is 5-10 min.
The use process of the alkali etching process of the aluminum alloy plate comprises the following steps:
15g/L of sodium hydroxide is heated at 30-35 ℃ for 30 s.
The degreasing and alkaline etching processes of the following examples are the same as those of example 1. And (3) dipping the degreased and alkali-etched 6061-T6 aluminum plate in the chromium-free chemical conversion solution for 10-30 s, taking out the aluminum plate, and curing the aluminum plate in an oven at 180 ℃ for 15 min.
In this example, the thickness of the obtained chromium-free chemical conversion coating was about 1 μm, and the white rust time of the obtained chromium-free chemical conversion coating in the neutral salt spray test was 240 hours or more.
Example 2
The difference from the embodiment 1 is that,
20.6g of gamma-glycidoxypropyltriethoxysilane, 5.2g of propyltriethoxysilane, and 2.5g of dodecyltrimethoxysilane were placed in a 1000mL three-necked flask equipped with a thermometer, a stirrer, and an addition funnel, then 300g of isopropyl alcohol and 200g of propylene glycol monomethyl ether were added, heated to 60 ℃ and the stirrer was turned on, 37.7g of an aqueous solution containing 2.8g of cobalt nitrate and 5.3g of ceric ammonium nitrate was slowly dropped, the pH was adjusted to 3.8 with 36 wt% acetic acid, and the mixture was kept warm for 2 hours, taken out, and cooled to room temperature.
And soaking the degreased and alkali-etched 5083-H131 aluminum plate in the chromium-free chemical conversion solution for 10-30 s, taking out the aluminum plate, and curing the aluminum plate in an oven at 200 ℃ for 30 min.
In this example, the thickness of the obtained chromium-free chemical conversion coating was about 1 μm, and the white rust time of the obtained chromium-free chemical conversion coating in the neutral salt spray test was 264 hours or more.
Example 3
The difference from the embodiment 1 is that,
15.3g N- (. beta. -aminoethyl) -gamma-aminopropyltrimethoxysilane, 6.5g of tetraethoxysilane and 3.8g of gamma-mercaptopropyltriethoxysilane were placed in a 500mL three-necked flask equipped with a temperature controller, a stirrer and an addition funnel, 150g of n-butanol and 20g of ethylene glycol monobutyl ether were then added, heated to 50 ℃ and the stirrer was turned on, 17.8g of an aqueous solution containing 1.5g of manganese nitrate and 2.3g of cobalt acetylacetonate was slowly dropped, the pH was adjusted to 4.0 with 20 wt% malonic acid, and after keeping the temperature for 5 hours, the mixture was taken out and cooled to room temperature.
And immersing the degreased and alkali-etched 5086-H116 aluminum plate in the chromium-free chemical conversion solution for 10-30 s, taking out the aluminum plate, and curing the aluminum plate in an oven at 250 ℃ for 10 min.
In the embodiment, the thickness of the obtained chromium-free chemical conversion coating is about 1 μm, and the white rust time of the obtained chromium-free chemical conversion coating in a neutral salt spray test can reach more than 288 h. .
Example 4
The difference from the embodiment 1 is that,
18.0g of gamma-ureidopropyltriethoxysilane, 2.6g of beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, 0.8g of gamma-mercaptopropyltriethoxysilane and 1.2g of gamma-isocyanatopropyltriethoxysilane were placed in a 1000mL three-necked flask equipped with a thermometer, a stirrer and an addition funnel, then 120g of isopropanol, 90g of n-butanol and 25g of dipropylene glycol methyl ether were added, the mixture was heated to 60 ℃ and the stirrer was turned on, 42.4g of an aqueous solution containing 2.0g of strontium nitrate and 1.4g of vanadyl acetylacetonate was slowly dropped, the pH was adjusted to 3.2 with 20 wt% propionic acid, and the mixture was kept warm for 4 hours, taken out and cooled to room temperature.
And (3) dipping the degreased and alkali-etched 6061-T6 aluminum plate in the chromium-free chemical conversion solution for 10-30 s, taking out the aluminum plate, and curing the aluminum plate in an oven at 200 ℃ for 30 min.
In this embodiment, the thickness of the obtained chromium-free chemical conversion coating is about 1 μm, and the white rust time of the obtained chromium-free chemical conversion coating in a neutral salt spray test can reach over 312 h.
Example 5
The difference from the embodiment 1 is that,
15.0g of gamma-isocyanatopropyltrimethoxysilane, 3.0g of gamma-mercaptopropylmethyldiethoxysilane, 0.8g of gamma-mercaptopropyltriethoxysilane, and 2.0g of heptadecafluorodecyltrimethoxysilane were placed in a 1000mL three-necked flask equipped with a temperature controller, a stirrer, and a charging funnel, 200g of butanediol, 300g of dipropylene glycol butyl ether, and 200g of ethylene glycol propyl ether were then added, and after heating to 60 ℃ and turning on the stirrer, 80g of an aqueous solution containing 8.0g of potassium permanganate and 8.0g of cerium sulfate was slowly dropped. After stirring evenly, the pH value is adjusted to 3.5 by 20 wt% of phytic acid, 1.5g of aqueous polyurethane thickener is added, and the mixture is taken out after heat preservation for 4 hours and then cooled to room temperature.
And (3) dipping the degreased and alkali-etched 6061-T6 aluminum plate in the chromium-free chemical conversion solution for 10-30 s, taking out the aluminum plate, and curing the aluminum plate in an oven at 200 ℃ for 30 min.
In this example, the thickness of the obtained chromium-free chemical conversion coating was about 1 μm, and the white rust time of the obtained chromium-free chemical conversion coating in the neutral salt spray test was 336 hours or more.
Claims (11)
1. The method for preparing the chemical conversion coating by using the environment-friendly corrosion-resistant chromium-free chemical conversion solution is characterized in that the environment-friendly corrosion-resistant chromium-free chemical conversion solution is used for surface treatment of marine aluminum alloy, the marine aluminum alloy is 5xxx series or 6xxx series aluminum alloy, and the environment-friendly corrosion-resistant chromium-free chemical conversion solution consists of a silane component, a corrosion inhibition component and a solvent, wherein:
the content of the silane component in the chromium-free chemical conversion solution is 2-15 wt%; the corrosion inhibiting component includes one or more of manganese salt, vanadium salt, cobalt salt, cerium salt or strontium salt, and the corrosion inhibiting component is used in chromium-free chemical conversionThe content of the liquid is 5-10 wt%; the solvent comprises water and C1～C5Monohydric or polyhydric alcohols or C2～C4More than one alcohol ether, wherein the content of the solvent in the chromium-free chemical conversion solution is 50-99 wt%;
the silane component comprises more than one of alkyl silane, vinyl silane, acryloxy silane, phenyl silane, epoxy silane, mercapto silane, amino silane, ureido silane, isocyanate silane or fluorine-containing silane, wherein:
the alkylsilane is selected from more than one of tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, n-butyltrimethoxysilane, isobutyltrimethoxysilane, n-butyltriethoxysilane, isobutyltriethoxysilane, n-octyltrimethoxysilane, isooctyltrimethoxysilane, n-octyltriethoxysilane, isooctyltriethoxysilane, decyltrimethoxysilane, decyltriethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, hexadecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyltrimethoxysilane, octadecyltriethoxysilane;
the vinyl silane is selected from more than one of vinyl methyl dimethoxy silane, vinyl trimethoxy silane, vinyl triethoxy silane, vinyl triisopropyl silane, vinyl tri (beta-methoxyethoxy) silane and vinyl triacetoxy silane;
the acryloxysilane is selected from one or more of gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, and gamma-methacryloxypropylmethyldimethoxysilane;
the phenyl silane is selected from more than one of phenyl trimethoxy silane, phenyl triethoxy silane and phenyl methyl dimethoxy silane;
the epoxy silane is selected from one or more of gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-glycidoxypropylmethyldimethoxysilane, gamma-glycidoxypropylmethyldiethoxysilane, and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane;
the mercaptosilane is selected from one or more of gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, gamma-mercaptopropylmethyldiethoxysilane, gamma-mercaptopropylmethyldimethoxysilane and gamma-mercaptopropylmethyldiethoxysilane;
the aminosilane is selected from one or more of gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, and N- (beta-aminoethyl) -gamma-aminopropylmethyldiethoxysilane;
the ureido silane is selected from more than one of gamma-ureido propyl trimethoxy silane and gamma-ureido propyl triethoxy silane;
the isocyanate silane is selected from one or more of gamma-isocyanate propyl trimethoxy silane and gamma-isocyanate propyl triethoxy silane;
the fluorine-containing silane is selected from more than one of perfluorooctyl trimethoxysilane, perfluorooctyl triethoxysilane, heptadecafluorodecyl trimethoxysilane and heptadecafluorodecyl triethoxysilane;
the manganese salt is selected from more than one of manganese nitrate, manganese sulfate and potassium permanganate; the vanadium salt is selected from one or more of sodium orthovanadate, sodium metavanadate, ammonium orthovanadate, ammonium metavanadate, vanadyl sulfate, vanadium nitrate, vanadium acetylacetonate, and vanadyl acetylacetonate; the cobalt salt is selected from one or more of cobalt nitrate, cobalt sulfate and cobalt acetylacetonate; the cerium salt is selected from at least one of cerium nitrate, cerium sulfate, ammonium ceric nitrate, ammonium ceric sulfate, and cerium acetylacetonate; the strontium salt is selected from one or more of strontium nitrate, strontium sulfate and strontium acetylacetonate;
the process for preparing the chemical conversion film comprises the following steps: degreasing → washing with water → alkali etching → chromium-free chemical conversion → curing, immersing 5xxx series or 6xxx series aluminum alloy in the chromium-free chemical conversion solution for 10-30 s, wherein the curing mode comprises natural curing or heating curing, and the heating curing is performed in a 150-300 ℃ oven for 10-60min, so as to obtain the chromium-free chemical conversion film with the thickness of 0.5-2 μm.
2. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 1, wherein C is1～C5The monohydric alcohol or polyhydric alcohol is selected from one or more of methanol, ethanol, ethylene glycol, polyethylene glycol, n-propanol, isopropanol, propylene glycol, glycerol, n-butanol, isobutanol, sec-butanol, tert-butanol, butanediol, butanetriol, pentanol, and pentanediol; the ethyl, propyl or butyl cellosolve is selected from more than one of ethylene glycol methyl ether, ethylene glycol propyl ether, ethylene glycol butyl ether, diethylene glycol ether, triethylene glycol ether, propylene glycol methyl ether, propylene glycol propyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether and dipropylene glycol butyl ether; the content of the solvent in the chromium-free chemical conversion solution is 60-95 wt%.
3. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 2, wherein the content of the solvent in the chromium-free chemical conversion solution is 70 to 90 wt%.
4. The method for preparing a chemical conversion coating by using the environment-friendly corrosion-resistant chromium-free chemical conversion solution according to claim 1, wherein the environment-friendly chromium-free chemical conversion solution further comprises an auxiliary agent, and the content of the auxiliary agent in the chemical conversion solution is 0.1-1 wt%.
5. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 4, wherein the content of the auxiliary in the chemical conversion solution is 0.25 to 0.75 wt%.
6. The method for preparing a chemical conversion coating using the environment-friendly corrosion-resistant chromium-free chemical conversion solution according to claim 4, wherein the content of the auxiliary in the chemical conversion solution is 0.3 to 0.5 wt%.
7. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 1, wherein the degreasing step uses a degreasing solution comprising: 7g/L of sodium hydroxide, 35g/L of sodium carbonate, 20g/L of sodium phosphate, 2g/L of sodium dodecyl benzene sulfonate and the balance of water; the degreasing step uses the following process: the temperature is 70 ℃ and the treatment time is 5-10 min.
8. The method for preparing a chemical conversion coating using the environment-friendly corrosion-resistant chromium-free chemical conversion solution according to claim 1, wherein the alkaline etching step uses an alkaline etching solution comprising: 15g/L of sodium hydroxide and the balance of water; the alkaline etching step uses the following process: the temperature is 30-35 ℃ and the time is 30 s.
9. The method for preparing a chemical conversion coating by using the environment-friendly corrosion-resistant chromium-free chemical conversion solution according to claim 1, wherein a pH value of the chromium-free chemical conversion solution is adjusted by using a pH value adjusting agent, and the pH value of the chromium-free chemical conversion solution ranges from 1 to 6; the pH value regulator comprises more than one of phosphoric acid, organic phosphonic acid, carboxylic acid, ammonia water or organic amine; the phosphoric acid is selected from more than one of orthophosphoric acid, metaphosphoric acid, phosphorous acid and hypophosphorous acid; the organic phosphonic acid is selected from more than one of amino trimethylene phosphonic acid, hydroxy ethylidene diphosphonic acid, hexamethylene diamine tetramethylene phosphonic acid, diethylene triamine pentamethyl phosphonic acid and inositol hexaphosphoric acid; the carboxylic acid is selected from one or more of formic acid, acetic acid, propionic acid, butyric acid, valeric acid, benzoic acid, malonic acid, succinic acid, glutaric acid, citric acid, tartaric acid, malic acid, salicylic acid, cinnamic acid, maleic acid, fumaric acid, gluconic acid, and glucoheptonic acid; the organic amine is selected from more than one of ethylenediamine, triethanolamine, diethylenetriamine, triethylene tetramine, tetraethylene pentamine and pentaethylene hexamine.
10. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 9, wherein the pH of the chromium-free chemical conversion solution is in the range of 2 to 5.
11. The method for preparing a chemical conversion coating using the environmentally friendly corrosion-resistant chromium-free chemical conversion solution according to claim 9, wherein the pH of the chromium-free chemical conversion solution is in the range of 3 to 4.
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