CN116285521B - Rust conversion rust fixing agent for metal corrosion rust coating and preparation method thereof - Google Patents
Rust conversion rust fixing agent for metal corrosion rust coating and preparation method thereof Download PDFInfo
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- CN116285521B CN116285521B CN202211635061.6A CN202211635061A CN116285521B CN 116285521 B CN116285521 B CN 116285521B CN 202211635061 A CN202211635061 A CN 202211635061A CN 116285521 B CN116285521 B CN 116285521B
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 title claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 53
- 238000005260 corrosion Methods 0.000 title claims abstract description 49
- 238000000576 coating method Methods 0.000 title claims abstract description 46
- 230000007797 corrosion Effects 0.000 title claims abstract description 46
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 82
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims abstract description 26
- 239000008367 deionised water Substances 0.000 claims abstract description 25
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 25
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- 230000008719 thickening Effects 0.000 claims abstract description 21
- 239000013530 defoamer Substances 0.000 claims abstract description 20
- KBEFBSGNGSLHOD-UHFFFAOYSA-N 4-methylpentane-1,1-diol Chemical compound CC(C)CCC(O)O KBEFBSGNGSLHOD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 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 abstract description 19
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims abstract description 19
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims abstract description 19
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 19
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000012964 benzotriazole Substances 0.000 claims abstract description 19
- 229940099607 manganese chloride Drugs 0.000 claims abstract description 19
- 235000002867 manganese chloride Nutrition 0.000 claims abstract description 19
- 239000011565 manganese chloride Substances 0.000 claims abstract description 19
- 239000000467 phytic acid Substances 0.000 claims abstract description 19
- 229940068041 phytic acid Drugs 0.000 claims abstract description 19
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 19
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZIWRUEGECALFST-UHFFFAOYSA-M sodium 4-(4-dodecoxysulfonylphenoxy)benzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCOS(=O)(=O)c1ccc(Oc2ccc(cc2)S([O-])(=O)=O)cc1 ZIWRUEGECALFST-UHFFFAOYSA-M 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 14
- OTPHUODPJLAZEM-UHFFFAOYSA-N [Na].N=C(C(=O)O)CC(=O)O Chemical compound [Na].N=C(C(=O)O)CC(=O)O OTPHUODPJLAZEM-UHFFFAOYSA-N 0.000 claims abstract description 8
- WFZSPNBFCBYLJU-UHFFFAOYSA-L [Na+].[Na+].[O-]C(=O)CC(=N)C([O-])=O Chemical compound [Na+].[Na+].[O-]C(=O)CC(=N)C([O-])=O WFZSPNBFCBYLJU-UHFFFAOYSA-L 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 33
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- 239000000839 emulsion Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
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- 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 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
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- 239000000203 mixture Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- -1 polydimethylsiloxane Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000008213 purified water Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
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- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
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- 150000007524 organic acids Chemical class 0.000 description 2
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- 238000005488 sandblasting Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 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 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- 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 description 1
- 239000013543 active substance Substances 0.000 description 1
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- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- LRBQNJMCXXYXIU-QWKBTXIPSA-N gallotannic 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-QWKBTXIPSA-N 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- 229940033123 tannic acid Drugs 0.000 description 1
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- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a rust conversion rust fixing agent for metal corrosion rust coating and a preparation method thereof, wherein the rust conversion rust fixing agent for metal corrosion rust coating and rust conversion comprises the following raw materials: polyvinyl butyral, phytic acid, benzotriazole, isohexanediol, isopropanol, diacetone alcohol, sodium dodecyl diphenyl ether disulfonate, sodium iminosuccinic acid, manganese chloride, pyrogallic acid, polyurethane thickening dispersant, defoamer and deionized water; the mass percentages of the raw materials are as follows: 10-20% of polyvinyl butyral, 2-3% of phytic acid, 2-3% of benzotriazole, 5-8% of isohexanediol, 7-8% of isopropanol, 2-3% of diacetone alcohol, 3-5% of sodium dodecyl diphenyl ether disulfonate, 0.5-1% of sodium iminosuccinate, 0.3-0.5% of manganese chloride, 0.1-0.3% of pyrogallic acid, 1-2% of polyurethane thickening dispersant, 0.2% -0.5% of defoamer and the balance of deionized water to 100%; the isopropanol is divided into two components, wherein one component is isopropanol 1-2%; the deionized water is divided into three components.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a rust conversion rust fixing agent for metal corrosion rust coating and a preparation method thereof.
Background
The annual world of metals that rust from corrosion is over about 20% of annual production, with an economic loss of about $1000 billion. The economic loss caused by corrosion in China is about 4% of the total national production value, and the corrosion-resistant coating of steel is the most economical and effective method for protecting the steel from corrosion and prolonging the service life of the steel. In order to obtain excellent corrosion resistance, rust on steel must be cleaned before coating, otherwise, a paint film and an anti-corrosion effect are poor due to continuous expansion of the rust, so rust removal treatment of the rust is an important component part of a coating process and plays a decisive role in success and failure of anti-corrosion coating. However, many complicated steel structural members such as large buildings, bridges, ships and the like are difficult to adopt a mechanized construction method due to the limitation of construction conditions in the maintenance process, and rust removal can be carried out only by adopting a manual or electric tool, so that rust and various corrosion products are necessarily remained as a result, the rust removal quality is difficult to be ensured, the construction is difficult and the cost is huge. Rust removal is a very heavy task, which consumes a lot of man-hours and increases costs. The distribution proportion of the coating cost of the steel plate is generally as follows: 42% of surface rust removal, 30% of construction and 19% of coating. At present, the domestic steel structure corrosion prevention still maintains the old technology of coating after sand blasting, and although the corrosion prevention effect is better, the sand blasting and shot blasting technology also has the defects of dead angles of complex structural members, high consumption of electric energy, dust pollution, noise pollution, high cost and the like, so that the preparation of the rust paint capable of being directly constructed on rust surfaces is very necessary. The existing metal corrosion rusted paint mainly comprises a solvent type rusted paint and a water-soluble type rusted paint, and organic matters are used as solvents or dispersion media, because volatile organic matters are easy to pollute the environment, high in energy consumption and toxicity, unsafe and incomplete in rust conversion. For example, the invention patent CN101760109a discloses a double-component solvent type rust primer with epoxy resin and phenolic resin as film forming materials, which solves the problems of direct coating of thin rust surfaces, solvent pollution to construction environment and the like. The aqueous rust paint is mainly prepared from phosphoric acid, tannic acid and the like, has the defects of poor compatibility with film forming substances, poor stability, easiness in local over-corrosion, poor coating adhesive force, poor uniformity and the like, and has a certain gap between the coating performance of the aqueous rust paint and that of solvent-type paint, so that the aqueous rust paint is difficult to popularize and apply quickly. The invention patent CN1264754A adopts phosphoric acid, organic acid, catalyst, corrosion inhibitor, active agent, penetrating agent and alloy powder to prepare the aqueous rust conversion agent, solves the problems of aqueous rust coating and construction pollution, has poor water resistance and binding force with an outer coating film, and still needs to strengthen the conversion speed and degree of rust.
Disclosure of Invention
In order to overcome the defects of the prior art, the rust conversion rust fixing agent for metal corrosion rust coating is developed, the special polymer composite aqueous rust conversion rust fixing agent is synthesized, and the special polymer composite aqueous rust conversion rust fixing agent has good compatibility and stability with corroded metal corrosion substances, so that the problems that metal corrosion points are easily generated in the metal corrosion rust coating process of an aqueous system, metal conversion and rust solidification adhesion are obtained, the paint film surface is uniform and smooth, the paint film is waterproof, and the metal rust conversion capability is poor are solved. The labor cost of a construction site and the field application operation procedure are solved. Greatly reduces the cost of the economic market.
The invention also aims to provide a preparation method of the rust conversion rust fixing agent for metal corrosion rust coating, which has the advantages of simple process, low cost, environmental friendliness and excellent performance.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a rust fixing agent for metal corrosion rust coating and rust conversion comprises the following raw materials: polyvinyl butyral, phytic acid, benzotriazole, isohexanediol, isopropanol, diacetone alcohol, sodium dodecyl diphenyl ether disulfonate, sodium iminosuccinic acid, manganese chloride, pyrogallic acid, polyurethane thickening dispersant, defoamer and deionized water;
the mass percentages of the raw materials are as follows: 10-20% of polyvinyl butyral, 2-3% of phytic acid, 2-3% of benzotriazole, 5-8% of isohexanediol, 7-8% of isopropanol, 2-3% of diacetone alcohol, 3-5% of sodium dodecyl diphenyl ether disulfonate, 0.5-1% of sodium iminosuccinate, 0.3-0.5% of manganese chloride, 0.1-0.3% of pyrogallic acid, 1-2% of polyurethane thickening dispersant, 0.2% -0.5% of defoamer and the balance of deionized water to 100%; the isopropanol is divided into two components, wherein one component is isopropanol 1-2%; the deionized water is divided into three components.
Further, the mass percentages of the raw materials are as follows: 15% of polyvinyl butyral, 2% of phytic acid, 3% of benzotriazole, 5% of isohexanediol, 2% of isopropanol, 6% of isopropanol, 3% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 1% of sodium iminosuccinic acid, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
Further, the mass percentages of the raw materials are as follows: 20% of polyvinyl butyral, 3% of phytic acid, 2% of benzotriazole, 2% of isohexanediol, 2% of isopropanol, 6% of isopropanol, 2% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 0.5% of iminosuccinic acid sodium, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
Still further, the defoamer is polydimethylsiloxane polyether.
A preparation method of a rust fixing agent for metal corrosion and rust coating and rust conversion comprises the following steps:
(1) Preparing a metal rust conversion agent: adding a specified amount of isopropyl alcohol and deionized purified water into a flask, mixing and stirring uniformly according to a ratio of 1:10, adding a specified amount of raw materials of pyrogallic acid, benzotriazole, sodium iminosuccinic sulfonate and manganese chloride, mixing and dispersing uniformly to completely dissolve the raw materials, adding a specified amount of isohexanediol and a specified amount of phytic acid material respectively, stirring and dispersing uniformly, and obtaining a metal rust conversion agent for later use;
(2) Preparing composite high molecular emulsion: adding specified amounts of polyvinyl butyral (PVB) and diacetone alcohol into a flask, filling nitrogen for protection at 160-180 ℃, refluxing and dissolving a condenser tube solvent into liquid resin liquid, slowly adding sodium dodecyl diphenyl ether disulfonate, completing the process within 20 minutes, subsequently cooling, and sequentially adding the polyvinyl butyral 1:1 part by mass of deionized purified water is stirred uniformly under the condition of a dispersion speed of 2000 revolutions, and is rapidly stirred for 10-20 minutes to obtain composite polymer emulsion for later use;
(3) Preparing a rust conversion rust fixing agent for metal corrosion rust coating of a target product: adding a prescribed amount of the solutions in the step (1) and the step (2) into a beaker, stirring uniformly, and adding 6g of osmotic agent isopropanol in batches to obtain a mixed solution; continuing stirring and finally slowly adding a specified amount of polyurethane thickening dispersant (1 g), defoamer (0.2 g) and polyurethane thickening dispersant: the deionized purified water comprises the following components in parts by mass: 9, after the deionized purified water is mixed with the mixed solution, heating to 40-50 ℃ and stirring for 20-30 min, the rust conversion rust fixing agent for metal corrosion rust coating is obtained.
Further preferably, the method comprises the following steps:
(1) Preparing a metal rust conversion agent: adding 2g of isopropyl alcohol and 20g of deionized purified water into a flask, mixing and stirring uniformly, adding 0.3g of pyrogallic acid, 2g of benzotriazole, 5g of sodium iminosuccinic sulfonate and 0.5g of manganese chloride, mixing and dispersing uniformly to completely dissolve the materials, and respectively adding 5g of isohexanediol and 2g of phytic acid, stirring and dispersing uniformly to obtain a metal rust conversion agent for later use;
(2) Preparing composite high molecular emulsion: adding 20g of polyvinyl butyral (PVB) and 2g of diacetone alcohol into a flask, filling nitrogen for protection at 160-180 ℃, refluxing and dissolving a condenser tube solvent into liquid resin liquid, slowly adding 5g of sodium dodecyl diphenyl ether disulfonate, completing the process within 20 minutes, subsequently cooling, sequentially adding 20g of deionized purified water, stirring uniformly under the condition of 2000 revolutions of dispersion speed, and rapidly stirring for 10-20 minutes to obtain composite polymer emulsion for later use;
(3) Preparing a rust conversion rust fixing agent for metal corrosion rust coating of a target product: adding a specified amount of composite polymer emulsion and a metal rust conversion agent into a 1000ML beaker, stirring uniformly, and adding 6g of osmotic agent isopropanol in batches to obtain a mixed solution; and (3) continuously stirring, slowly adding a specified amount of polyurethane thickening dispersant 1g, a defoamer 0.2g and deionized purified water 9g into the mixture, heating to 40-50 ℃ and stirring for 20-30 min to obtain the target product, namely the rust conversion rust fixing agent for metal corrosion rust coating.
The invention has the technical effects that: the invention discloses a rust conversion rust fixing agent for metal corrosion rust coating, which synthesizes a special polymer composite aqueous rust conversion rust fixing agent with good compatibility and stability with corroded metal corrosion substances, and solves the problems that metal corrosion points are easily generated in the metal corrosion rust coating process of the current aqueous system to obtain metal conversion and rust solidification adhesion, and the surface of a paint film is uniform and smooth, the paint film is waterproof, and the metal rust conversion capability is poor. The labor cost of a construction site and the field application operation procedure are solved. Greatly reduces the cost of the economic market. The invention also aims to provide a preparation method of the rust conversion rust fixing agent for metal corrosion rust coating, which has the advantages of simple process, low cost, environmental friendliness and excellent performance.
Drawings
FIG. 1 is an SEM imaging of a rust conversion rust fixing agent layer for metal corrosion rust coating of the present invention;
fig. 2 is a view showing the effect of the present invention, in which the left side is a control example and the right side is a use example using the present invention, and the view is a color image because gray scale is not applied.
Detailed Description
The invention provides a rust conversion rust fixing agent for metal corrosion rust coating, which consists of polyvinyl butyral, phytic acid, benzotriazole, isohexanediol, isopropanol, diacetone alcohol, sodium dodecyl diphenyl ether disulfonate, sodium iminosuccinate, manganese chloride, pyrogallic acid, polyurethane thickening dispersant and deionized water, wherein the mass percentages of the raw materials are as follows: the actual application formula comprises the following steps: 10-20% of polyvinyl butyral, 2-3% of phytic acid, 2-3% of benzotriazole, 5-8% of isohexanediol, 7-8% of isopropanol, 2-3% of diacetone alcohol, 3-5% of sodium dodecyl diphenyl ether disulfonate, 0.5-1% of sodium iminosuccinate, 0.3-0.5% of manganese chloride, 0.1-0.3% of pyrogallic acid, 1-2% of polyurethane thickening dispersant, 0.2% -0.5% of defoamer and the balance of deionized water to 100%; the isopropanol is divided into two components, wherein one component is isopropanol 1-2%; the deionized water is divided into three components.
The preferable formula is as follows: 15% of polyvinyl butyral, 2% of phytic acid, 3% of benzotriazole, 5% of isohexanediol, 2% of isopropanol, 6% of isopropanol, 3% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 1% of sodium iminosuccinic acid, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
Yet another preferred formulation is: 20% of polyvinyl butyral, 3% of phytic acid, 2% of benzotriazole, 2% of isohexanediol, 8% of isopropanol (namely, 2% of isopropanol of one component, 6% of isopropanol of the other component), 2% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 0.5% of sodium iminosuccinate, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
The invention provides a preparation method of a rust conversion rust fixing agent for metal corrosion rust coating, which comprises the following specific steps:
(4) Preparing a metal rust conversion agent: adding 2g of isopropyl alcohol and 20g of deionized (pure) water into a flask, mixing and stirring uniformly, adding 0.3g of pyrogallic acid, 2g of benzotriazole, 5g of sodium iminosuccinic sulfonate and 0.5g of manganese chloride, mixing and dispersing uniformly to completely dissolve the materials, and respectively adding 5g of isohexanediol and 2g of organic acid (phytic acid), stirring and dispersing uniformly to obtain a metal rust conversion agent for later use;
(5) Preparing composite high molecular emulsion: adding 20g of polyvinyl butyral (PVB) and 2g of diacetone alcohol into a flask, filling nitrogen for protection at 160-180 ℃, refluxing and dissolving a condenser tube solvent into liquid resin liquid, slowly adding 5g of sodium dodecyl diphenyl ether disulfonate, completing the process within 20 minutes, subsequently cooling, sequentially adding 20g of deionized purified water, stirring uniformly under the condition of 2000 revolutions of dispersion speed, and rapidly stirring for 10-20 minutes to obtain water-soluble polyvinyl butyral PVB emulsion (namely composite polymer emulsion) for later use;
(6) Preparing a rust conversion rust fixing agent for metal corrosion rust coating of a target product: adding a specified amount of composite polymer emulsion and metal rust conversion agent (namely the solution in the step (1) and the step (2)) into a 1000ML beaker, stirring uniformly, and adding 6g of isopropanol serving as a batch penetrating agent (film forming additive) to obtain a mixed solution; and (3) continuously stirring, slowly adding a specified amount of (polyurethane) thickening dispersant 1g, a defoaming agent 0.2g and deionized purified water 9g into the mixture, heating to 40-50 ℃ after mixing with the mixed solution, and stirring for 20-30 min to obtain the target product, namely the rust conversion rust fixing agent for metal corrosion rust coating.
Further, the defoamer is polydimethylsiloxane polyether.
The above-mentioned prescribed amount is the mass percentage of the raw material composition.
The following table is a table of the components of the preferred set of preparation methods described above:
experiments prove that refer to figures 1 and 2.
The use method of the rust conversion rust fixing agent for metal corrosion rust coating comprises the following steps: the rust conversion rust fixing agent for metal corrosion rust coating is directly soaked, sprayed or brushed on the surface of a rust metal steel base material or a rust steel product thereof (the coated thickness is based on the whole covered surface, the thickness is as thin as possible, and the general dosage is 12-15 m) 2 The rust is less and the consumption is less), so as to remove the rust on the surface of the metal steel base material or the rusted steel product (workpiece) and form a layer of solid rusting conversion protective film with high compactness (so that oxygen, water and the like in the atmosphere cannot enter), thereby completing the rust removal, rust prevention and the purposes of blocking the oxygen and water from corroding the metal and being environment-friendly for products.
Claims (6)
1. A rust fixing agent for metal corrosion rust coating and rust conversion is characterized in that: the method comprises the following steps: polyvinyl butyral, phytic acid, benzotriazole, isohexanediol, isopropanol, diacetone alcohol, sodium dodecyl diphenyl ether disulfonate, sodium iminosuccinic acid, manganese chloride, pyrogallic acid, polyurethane thickening dispersant, defoamer and deionized water;
the mass percentages of the raw materials are as follows: 10-20% of polyvinyl butyral, 2-3% of phytic acid, 2-3% of benzotriazole, 5-8% of isohexanediol, 7-8% of isopropanol, 2-3% of diacetone alcohol, 3-5% of sodium dodecyl diphenyl ether disulfonate, 0.5-1% of sodium iminosuccinate, 0.3-0.5% of manganese chloride, 0.1-0.3% of pyrogallic acid, 1-2% of polyurethane thickening dispersant, 0.2% -0.5% of defoamer and the balance of deionized water to 100%; the isopropanol is divided into two components, wherein one component is isopropanol 1-2%; the deionized water is divided into three components.
2. The method for preparing the rust-carrying coating and rust-converting rust-fixing agent for metal corrosion according to claim 1, wherein the method comprises the following steps: the mass percentages of the raw materials are as follows: 15% of polyvinyl butyral, 2% of phytic acid, 3% of benzotriazole, 5% of isohexanediol, 2% of isopropanol, 6% of isopropanol, 3% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 1% of sodium iminosuccinic acid, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
3. The metallic corrosion rust coating and rust conversion rust fixing agent according to claim 1, wherein: the mass percentages of the raw materials are as follows: 20% of polyvinyl butyral, 3% of phytic acid, 2% of benzotriazole, 2% of isohexanediol, 2% of isopropanol, 6% of isopropanol, 2% of diacetone alcohol, 5% of sodium dodecyl diphenyl ether disulfonate, 0.5% of iminosuccinic acid sodium, 0.5% of manganese chloride, 0.3% of pyrogallic acid, 1% of polyurethane thickening dispersant, 0.2% of defoamer and the balance of deionized water to 100%.
4. A metallic corrosion rust coating and rust conversion rust fixing agent according to any one of claims 1 to 3, characterized in that: the defoamer is polydimethylsiloxane polyether.
5. The method for preparing the rust fixing agent for metal corrosion and rust coating and rust conversion according to any one of claims 1 to 4, comprising the following steps:
(1) Preparing a metal rust conversion agent: adding a group of isopropyl alcohol and deionized water into a flask, mixing and stirring uniformly according to a ratio of 1:10, adding raw materials of pyrogallic acid, benzotriazole, iminosuccinic sodium sulfonate and manganese chloride, mixing and dispersing uniformly to dissolve completely, adding isohexanediol and phytic acid materials respectively, stirring and dispersing uniformly to obtain a metal rust conversion agent for later use;
(2) Preparing composite high molecular emulsion: adding polyvinyl butyral and diacetone alcohol into a flask, filling nitrogen for protection at 160-180 ℃, refluxing and dissolving a condenser tube solvent into liquid resin liquid, slowly adding sodium dodecyl diphenyl ether disulfonate, completing the process within 20 minutes, subsequently cooling, and sequentially adding polyvinyl butyral 1: uniformly stirring 1 part by mass of deionized water at a dispersion speed of 2000 r, and rapidly stirring for 10-20 min to obtain a composite polymer emulsion for later use;
(3) Preparing a target product, namely a metal corrosion rust coating and rust conversion rust fixing agent: adding the solutions in the step (1) and the step (2) into a beaker, uniformly stirring, and adding 6% of isopropanol which is another component of the penetrating agent in batches to obtain a mixed solution; continuously stirring, and finally slowly adding 1% of polyurethane thickening dispersant, 0.2% of defoamer and polyurethane thickening dispersant: deionized water is 1:9, after mixing the deionized water with the mixed solution, heating to 40-50 ℃ and stirring for 20-30 min, obtaining the target product, namely the metal corrosion rust coating and rust conversion rust fixing agent.
6. The method for preparing the rust-fixing agent for metal corrosion coating and rust conversion according to claim 5, which is characterized by comprising the following steps:
(1) Preparing a metal rust conversion agent: adding 2g of isopropanol and 20g of deionized water into a flask, mixing and stirring uniformly, adding 0.3g of pyrogallic acid, 2g of benzotriazole, 5g of sodium iminosuccinic sulfonate and 0.5g of manganese chloride, mixing and dispersing uniformly to completely dissolve the materials, and respectively adding 5g of isohexanediol and 2g of phytic acid, stirring and dispersing uniformly to obtain a metal rust conversion agent for later use;
(2) Preparing composite high molecular emulsion: adding 20g of polyvinyl butyral and 2g of diacetone alcohol into a flask, filling nitrogen for protection at 160-180 ℃, refluxing and dissolving a condenser tube solvent into liquid resin liquid, slowly adding 5g of sodium dodecyl diphenyl ether disulfonate, completing the process within 20 minutes, subsequently cooling, sequentially adding 20g of deionized water, stirring uniformly at a dispersion speed of 2000-20 minutes, and rapidly stirring for 10-20 minutes to obtain a composite polymer emulsion for later use;
(3) Preparing a target product, namely a metal corrosion rust coating and rust conversion rust fixing agent: adding the composite polymer emulsion and the metal rust conversion agent into a 1000ML beaker, uniformly stirring, and adding 6g of isopropanol which is another component of the penetrating agent in batches to obtain a mixed solution; and (3) continuously stirring, slowly adding 1g of polyurethane thickening dispersant, 0.2g of defoamer and 9g of deionized water into the mixture, heating to 40-50 ℃ and stirring for 20-30 min to obtain the target product, namely the metal corrosion rust coating and rust conversion rust fixing agent.
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| JPH03215574A (en) * | 1990-01-19 | 1991-09-20 | Nippon Paint Co Ltd | Rust-preventive composition |
| CN101693802A (en) * | 2009-10-22 | 2010-04-14 | 袁泉利 | Environment-friendly type special adhesion primer for nonferrous metal surface |
| KR101440349B1 (en) * | 2013-03-18 | 2014-09-18 | 중앙크리텍 주식회사 | Painting method of steel structure for self healing |
| CN105968986A (en) * | 2016-07-19 | 2016-09-28 | 刘涛 | Metal chemical anticorrosive paint capable of being sprayed on rust and preparation method of metal chemical anticorrosive paint |
| WO2017028373A1 (en) * | 2015-08-20 | 2017-02-23 | 南通瑞普埃尔生物工程有限公司 | Water-based heavy-anticorrosion single-component primer for rusty surface and preparation method and application thereof |
| CN109957262A (en) * | 2019-04-04 | 2019-07-02 | 泰兴库本机电有限公司 | Coating, coating and preparation method thereof for material surface processing |
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2022
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| JPH03215574A (en) * | 1990-01-19 | 1991-09-20 | Nippon Paint Co Ltd | Rust-preventive composition |
| CN101693802A (en) * | 2009-10-22 | 2010-04-14 | 袁泉利 | Environment-friendly type special adhesion primer for nonferrous metal surface |
| KR101440349B1 (en) * | 2013-03-18 | 2014-09-18 | 중앙크리텍 주식회사 | Painting method of steel structure for self healing |
| WO2017028373A1 (en) * | 2015-08-20 | 2017-02-23 | 南通瑞普埃尔生物工程有限公司 | Water-based heavy-anticorrosion single-component primer for rusty surface and preparation method and application thereof |
| CN105968986A (en) * | 2016-07-19 | 2016-09-28 | 刘涛 | Metal chemical anticorrosive paint capable of being sprayed on rust and preparation method of metal chemical anticorrosive paint |
| CN109957262A (en) * | 2019-04-04 | 2019-07-02 | 泰兴库本机电有限公司 | Coating, coating and preparation method thereof for material surface processing |
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