CN107267970A - A kind of steelwork aqueous, environmental protective antirust agent and its preparation method and application - Google Patents

A kind of steelwork aqueous, environmental protective antirust agent and its preparation method and application Download PDF

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Publication number
CN107267970A
CN107267970A CN201710554079.6A CN201710554079A CN107267970A CN 107267970 A CN107267970 A CN 107267970A CN 201710554079 A CN201710554079 A CN 201710554079A CN 107267970 A CN107267970 A CN 107267970A
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agent
acid
antirust agent
film forming
corrosion inhibiter
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CN201710554079.6A
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CN107267970B (en
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白林森
梁莲芝
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Lianyungang Deyao Machinery Technology Co.,Ltd.
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WUXI FUJI ELECTRONIC TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/78Pretreatment of the material to be coated
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C23G1/063Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C23G1/068Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors compounds containing a C=C bond
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel
    • C23G1/088Iron or steel solutions containing organic acids

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  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Detergent Compositions (AREA)

Abstract

The present invention, which is provided, contains corrosion inhibiter A, corrosion inhibiter B in a kind of aqueous, environmental protective highly effective antirust agent for steelwork, the antirust agent, complexing agent, film forming agent, modified additive and other additives, solvent is ethanol and deionized water, and antirust agent prepared by the present invention has following beneficial technique effect:(1)It is environment-friendly, it is pollution-free;(2)Favorable rust preventing effect, and with rust remover simultaneously in use, whole derusting rust-proofing process is simple, the time is short, better;(3)Film forming is uniform, and nothing is punctured, leak or bubble;(4)After film forming, film has antiseptic property in itself, and higher with the adhesion of base material;(5)High temperature, low-temperature stability is good, and whole derusting system is without layering, or precipitation or rotten.

Description

A kind of steelwork aqueous, environmental protective antirust agent and its preparation method and application
Technical field
The present invention relates to metal rust preventing field, and in particular to the aqueous, environmental protective antirust agent field of steelwork.
Background technology
Corrosion of metal is common in society, but the phenomenon being difficult to avoid that, machinery that such as various metals are made, is set Standby, building is got rusty in atmosphere because exposed for a long time, and when being full of substantial amounts of steam, salt fog in air, corrosion phenomena is just More significantly, such as aircraft, boat, the in addition corrosion of metal influence also very huge for national economy, China 2012 because It is the economic loss caused by corrosion with regard to 800,000,000,000 RMB, and the U.S. was shown in corrosion loss investigation result in 2010:Corrosion Loss cause as many as about 476,000,000,000 dollars loss, this numeral probably accounted for national of the United States's total output value 1.2% it It is many.And corrosion can also cause irreversible destruction and loss to the profile of metal, gloss and mechanical performance, what is had even can be with Directly make product rejection, so as to cause wasting for resource, therefore for very must of just becoming of antirust treatment of metallic article Will.
The conventional method for preventing or slowing down corrosion mainly has following several at present:
(1)New material is prepared, the alloy of trace element is such as added, and according to different environment, prepares different Metal Substrates Material;
(2)Coating film:In the surface coating paint of metal material, strengthen antiseptic property;
(3)Passivation Treatment:By surface preparation means, dense oxidation film is obtained in metallic surface, such as by anodic oxidation, Protective oxide layer is obtained in aluminium surface;
(4)The higher material of activity is added, galvanic cell is formed with substrate metal, and active metal is such as navigated as sacrificial electrode Boat bottom coats zinc rich primer;
(5)Add antirust agent:It can make metal by good protection using the rustless property of antirust agent, or delay corrosion Generation speed.
The content of the invention
The present invention provides a kind of content of each component in aqueous, environmental protective highly effective antirust agent for steelwork, the antirust agent For:
Corrosion inhibiter A:4- penetenoic acids:2- amion acetic acids:N, N- dimethylethanolamine mass ratio=1:(1.6~2):(0.5 ~ 0.7), Corrosion inhibiter A accounts for 2 ~ 4wt.% of antirust agent total amount;
Corrosion inhibiter B:1 ~ 2wt.% of inositol hexaphosphate;
Complexing agent:Ethylenediamine tetra-acetic acid:HPMA mass ratio=1:1,1 ~ 2.5wt.% of content;
Film forming agent:15 ~ 35wt.% of polyvinyl butyral resin;
Modified additive:Organic silicon modified by polyether surfactant:Neopelex mass ratio=2:(0.5~1), content 0.5~1.5wt.%;
Other additives:0.6 ~ 1wt.% of poly-aspartate;
Remaining as ethanol and deionized water, ethanol:Deionized water volume ratio=5:1.
Antirust agent is covered in steelwork surface by the present invention by way of brushing, spraying or soak, and soak time is less than 0.5 hour, more than 1 minute, it is then placed into 20 ~ 30oIn C insulating boxs, control humidity is below 30%, finally in metal surface Film forming.
The preparation method of the steelwork antirust agent:It is put into 4- penetenoic acids, 2- amion acetic acids, N, N- diformazans in mass ratio first Ethylethanolamine, deionized water, 75oUnder C, 2h is heated to reflux, is cooled, corrosion inhibiter solution A is obtained;Then stirring at normal temperature, by inositol Six phosphates are dissolved in deionized water, obtain phytic acid aqueous solution of ester corrosion inhibiter B;Then by film forming agent polyvinyl butyral resin Add in ethanol solution, prepare film forming agent solution;Then complexing agent, modified additive, poly-aspartate are added into deionized water, 50oMagnetic agitation 20min under C, cooling obtains uniform mixed liquor;Then above-mentioned corrosion inhibiter A and B is added into mixed liquor simultaneously, most After add film forming agent, sealing reactor under conditions of, normal temperature, magnetic agitation 1 hour, obtain antirust agent.
Wherein, 0.05 ~ 2wt.% plasticizer is also contained in antirust agent, the plasticizer is selected from phthalic acid ester, citric acid One kind in ester, sebacate, by film forming agent polyvinyl butyral resin and plasticizer phthalic acid ester, citrate, the last of the ten Heavenly stems two In a kind of addition ethanol solution in acid esters, modified film forming agent solution is prepared.
Before using antirust agent, surface preparation-processing of rust removing-washing-dehydrogenation is carried out to the steelwork got rusty in advance Processing-natural cooling processing, becomes rusty wherein surface treatment removes part to be polished in advance using 240# ~ 360# sand paper, processing of rust removing For chemical derusting, rust remover contains inorganic 25 ~ 40wt.% of mixed acid, 5 ~ 30wt.% of organic acid, zwitterionic surfactant 2 ~ 4 Wt.%, the wt.% of complexing agent 7 ~ 12, the wt.% of corrosion inhibiter 2 ~ 5, the wt.% of bleeding agent 2 ~ 3, the wt.% of additional salt 5 ~ 10, additional adjuvants 0.7-1 wt.%, wherein it is 4 that inorganic mixed acid, which is mass ratio,:1 hydrochloric acid and nitric acid mixed acid, organic acid are sulfinic acid, amino sulphur One or more mixtures in acid or oxalic acid, zwitterionic surfactant is Cocoamidopropyl betaine, and complexing agent is One kind in potassium rhodanide or sodium sulfocyanate, corrosion inhibiter is one kind in coloured glaze base benzothiazole, sodium metasilicate, methenamine, infiltration Agent is heterogeneous ten alcohol polyoxyethylene ether, and additional salt is ammonium fluoride, and additional adjuvants are not influence the polyoxyethylene polyoxy of bubble system Propyl alcohol amidogen ether or dimethyl silicone polymer defoamer, and polyoxy second fatty acid esters of sorbitan class or polyoxyethylene fatty acid ester Class solubilizer.
Using and select for each component in rust remover:(1)Using the 4- penetenoic acids of compounding, 2- amion acetic acids and N, N- dimethylethanolamines, heating generation acid amides antirust agent raw material, can firmly be attached to metal surface, mainly carboxylic acid hydramine There are lone pair electrons with the N and O atom in alkylolamides molecule, the metal surface effect generation absorption that there can be d unoccupied orbitals with iron etc. Property diaphragm, prevent corrosive medium oxygen and water equimolecular from directly being contacted with metal surface, and then play effective inhibition to protect Effect;(2)Inositol hexaphosphate, directly can be extracted, safety and environmental protection is pollution-free, and can reduce corrosion inhibiter A from plant Consumption.With metal ion complexation reaction occurs for the numerous group of the natural organic matter molecule, forms stable chelant ring cover and exists On metal surface;(3)Complex compound is compounded using ethylenediamine tetra-acetic acid and HPMA, and ethylenediamine tetra-acetic acid has good Complexing and peptizaiton, and HPMA plays the role of adsorbing contaminant, can play a part of antisludging agent, can improve The complexing of antirust agent each component;(4)The status of film forming agent is indispensable as corrosion inhibiter, polyvinyl butyral resin sheet Body has high anti-corrosion, rustless property and cold resistance, most important to the high temperature and low-temperature stability of antirust agent, secondly poly- second Enol butyral is to aluminium, and steel, iron, zinc has good adhesive attraction, but polyvinyl butyral resin is submissiveer, can add Appropriate plasticizer is modified;(5)Neopelex surfactant improves the surface tension of antirust agent, but easily produces Bubble, organic silicon modified by polyether surfactant has the high suds that disappear for neopelex bubble system, Non-uniform phenomenon when reducing film forming, poly-aspartate has high environmentally friendly scale-inhibiting properties, improves the antiseptic property of antirust agent.
Antirust agent prepared by the present invention has following excellent technique effect:(1)It is environment-friendly, it is pollution-free;(2)Rust-proof effect It is good, and with above-mentioned rust remover simultaneously in use, whole derusting rust-proofing process is simple, the time is short, better;(3)Film forming is uniform, Nothing is punctured, leak or bubble;(4)After film forming, film has antiseptic property in itself, and higher with the adhesion of base material;(5)High temperature, Low-temperature stability is good, and whole derusting system is without layering, or precipitation or rotten.
Brief description of the drawings
Fig. 1:The preparation method of steelwork antirust agent.
Embodiment
Film forming is tested:Using same corrosion steelwork thin slice, several piece is cut to, table is carried out to corrosion steelwork respectively The processing of face pretreatment-processing of rust removing-washing-dehydrogenation-natural cooling, then enters sample in antirust agent after immersion 5min Take out, hang, dry, observation specimen surface whether without broken hole, can be formed continuous uniform film be considered as it is qualified.
Neutral acid mist corrosion resistance test, each sample is placed in acid mist experiment chest 30 hours, sets blank test sample Product, define the level to corrosion situation:1 grade:Without significant change;2 grades:Mild-moderate loss of gloss, non-corroding thing;3 grades:It is glossy, have A small amount of rust;4 grades:Serious loss of gloss, rust is obvious;5 corrosion especially severes, cover substrate surface substantially.
Anti- air humidity corrosion test, selects film forming steelwork and is placed in 60oIn C, the drier of relative humidity more than 90%, There is the time of corrosion in record.
Stability test:Antirust agent is placed in sealed glass jars, 85 ~ 90 are respectively placed inoC water-baths, and -10 ~ 0oC ice In case, layering, or precipitation or rotten have been seen whether.
Embodiment 1
First, the steelwork got rusty is carried out at surface preparation-processing of rust removing-washing-dehydrogenation-natural cooling in advance Reason, becomes rusty, processing of rust removing is chemical derusting, is derusted wherein surface treatment removes part to be polished in advance using 240# ~ 360# sand paper Agent is:
Inorganic mixed acid, mass ratio is 4:1 hydrochloric acid and nitric acid mixed acid, 25wt.%
Organic acid, sulfinic acid 5wt.%
Zwitterionic surfactant, the wt.% of Cocoamidopropyl betaine 2
Complexing agent, the wt.% of potassium rhodanide 7
Corrosion inhibiter, coloured glaze base benzothiazole 2wt.%
Bleeding agent, heterogeneous ten alcohol polyoxyethylene ether 2wt.%
Additional salt, the wt.% of ammonium fluoride 5
Additional adjuvants, polyoxyethylene polyoxy propyl alcohol amidogen ether and polyoxy second fatty acid esters of sorbitan class, 0.7 wt.%;It is remaining It is 3 for volume ratio:The solvent that 1 ethanol or ethylene glycol is constituted with deionization.
Then, by 1:1.8:0.6 mass ratio by 4- penetenoic acids, 2- amion acetic acids and N, N- dimethylethanolamine be put in from In sub- water, 75oUnder C, 2h is heated to reflux, is cooled, corrosion inhibiter solution A is obtained;Then inositol hexaphosphate is dissolved in deionized water, Stirring at normal temperature, obtains phytic acid aqueous solution of ester corrosion inhibiter B;Then polyvinyl butyral resin and plasticizer are added into ethanol molten In liquid, modified film forming agent solution is prepared;Then complexing agent, modified additive, poly-aspartate, 50 are added into deionized wateroUnder C Magnetic agitation 20min, cooling obtains uniform mixed liquor;Then above-mentioned corrosion inhibiter A and B is added into mixed liquor simultaneously, be eventually adding Film forming agent, under conditions of sealing reactor, normal temperature, magnetic agitation 1 hour obtains antirust agent sample 1, remaining sample 2 ~ 7 Preparation method is consistent with sample 1, and "-" is no added.
Table 1
a:4- penetenoic acids:2- amion acetic acids:N, N- dimethylethanolamine mass ratio=1:1.8:0.6;
b:Ethylenediamine tetra-acetic acid:HPMA mass ratio=1:1;
c:Organic silicon modified by polyether surfactant:Neopelex mass ratio=2:1.
Brand-new environmentally friendly novel antirust agent prepared by premium properties of the present invention based on corrosion inhibiter and film forming agent, it prepares work Skill is simple, and antirust agent can be good at being coated in metal surface, and film forming is uniformly complete, and anti-rust and corrosionproperties are splendid after film forming, and Antirust agent stability is higher, and service life is long, improves the practical value of antirust agent.
Described above is embodiments of the present invention, it is noted that for those skilled in the art, Under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as this hair Bright protection domain.

Claims (6)

1. a kind of steelwork aqueous, environmental protective antirust agent, it is characterised in that the antirust agent contains following several components:
Corrosion inhibiter A:4- penetenoic acids, 2- amion acetic acids and N, N- dimethylethanolamine;
Corrosion inhibiter B:Inositol hexaphosphate;
Complexing agent:Ethylenediamine tetra-acetic acid and HPMA;
Film forming agent:Polyvinyl butyral resin;
Modified additive:Organic silicon modified by polyether surfactant and neopelex surfactant;
Other additives:Poly-aspartate;
Ethanol and deionized water.
2. antirust agent as claimed in claim 1, it is characterised in that the content of each component is in the antirust agent:
Corrosion inhibiter A:4- penetenoic acids:2- amion acetic acids:N, N- dimethylethanolamine mass ratio=1:(1.6~2):(0.5 ~ 0.7), delays Erosion agent A accounts for 2 ~ 4wt.% of antirust agent total amount;
Corrosion inhibiter B:1 ~ 2wt.% of inositol hexaphosphate;
Complexing agent:Ethylenediamine tetra-acetic acid:HPMA mass ratio=1:1, complexing agent account for antirust agent total amount 1 ~ 2.5wt.%
Film forming agent:15 ~ 35wt.% of polyvinyl butyral resin;
Modified additive:Organic silicon modified by polyether surfactant:Neopelex mass ratio=2:(0.5~1), it is modified Auxiliary agent accounts for 0.5 ~ 1.5wt.% of antirust agent total amount;
Other additives:0.6 ~ 1wt.% of poly-aspartate;
Remaining as ethanol and deionized water, ethanol:Deionized water volume ratio=5:1.
3. antirust agent as claimed in claim 1 or 2, it is characterised in that be covered in steel using the mode for brushing, spraying or soaking Article surface, soak time is less than 0.5 hour, more than 1 minute, is then placed into 20 ~ 30oIn C insulating boxs, control humidity exists Less than 30%, finally in metal surface film forming.
4. the preparation method of steelwork aqueous, environmental protective antirust agent as claimed in claim 1 or 2, it is characterised in that first by quality Than being put into 4- penetenoic acids, 2- amion acetic acids, N, N- dimethylethanolamines, deionized water, 75oUnder C, 2h is heated to reflux, cools, obtains Obtain corrosion inhibiter solution A;Then stirring at normal temperature, deionized water is dissolved in by inositol hexaphosphate, obtains phytic acid aqueous solution of ester Corrosion inhibiter B;Then film forming agent polyvinyl butyral resin is added in ethanol solution, prepares film forming agent solution;Then to deionization Complexing agent, modified additive and poly-aspartate, 50 are added in wateroMagnetic agitation 20min under C, cooling obtains uniform mixed liquor;So Above-mentioned corrosion inhibiter A and B is added into mixed liquor simultaneously afterwards, film forming agent solution is eventually adding, under conditions of sealing reactor, often Temperature, magnetic agitation 1 hour obtains antirust agent.
5. the steelwork aqueous, environmental protective antirust agent as described in any one of claim 1 ~ 4, it is characterised in that also contain in antirust agent 0.05 ~ 2wt.% plasticizer, the one kind of the plasticizer in phthalic acid ester, citrate, sebacate, by film forming In a kind of addition ethanol solution in agent polyvinyl butyral resin and plasticizer phthalic acid ester, citrate, sebacate, Prepare modified film forming agent solution.
6. the application method of steelwork aqueous, environmental protective antirust agent as claimed in claim 1 or 2, it is characterised in that using antirust Before agent, surface preparation-processing of rust removing-washing-dehydrogenation-natural cooling processing is carried out to the steelwork got rusty in advance, Wherein surface treatment is to polish to remove in advance using 240# ~ 360# sand paper partly to become rusty, and processing of rust removing is chemical derusting, and rust remover contains There are inorganic 25 ~ 40wt.% of mixed acid, 5 ~ 30wt.% of organic acid, the wt.% of zwitterionic surfactant 2 ~ 4, complexing agent 7 ~ 12 Wt.%, the wt.% of corrosion inhibiter 2 ~ 5, the wt.% of bleeding agent 2 ~ 3, the wt.% of additional salt 5 ~ 10, additional adjuvants 0.7-1 wt.%, wherein without Machine mixed acid is that mass ratio is 4:1 hydrochloric acid and nitric acid mixed acid, organic acid is one kind in sulfinic acid, sulfamic acid or oxalic acid Or a variety of mixtures, zwitterionic surfactant is Cocoamidopropyl betaine, and complexing agent is potassium rhodanide or thiocyanic acid One kind in sodium, corrosion inhibiter is one kind in coloured glaze base benzothiazole, sodium metasilicate, methenamine, and bleeding agent is the alcohol polyoxy of isomery ten Vinethene, additional salt is ammonium fluoride, and additional adjuvants are not influence the polyoxyethylene polyoxy propyl alcohol amidogen ether or poly- diformazan of bubble system Radical siloxane defoamer, and polyoxy second fatty acid esters of sorbitan class or polyoxyethylene fatty acid ester class solubilizer.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829097A (en) * 2017-11-21 2018-03-23 苏州市宽道模具机械有限公司 A kind of aqueous rust remover and preparation method thereof
CN110093915A (en) * 2019-03-27 2019-08-06 浙江立鹏建设有限公司 A kind of bored pile construction method
CN113980726A (en) * 2021-10-20 2022-01-28 淄博倍尔科新型材料有限公司 Novel film forming material for metal surface

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