CN107299338A - 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 PDFInfo
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- CN107299338A CN107299338A CN201710554100.2A CN201710554100A CN107299338A CN 107299338 A CN107299338 A CN 107299338A CN 201710554100 A CN201710554100 A CN 201710554100A CN 107299338 A CN107299338 A CN 107299338A
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C22/00—Chemical 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
- C23C22/05—Chemical 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
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C22/00—Chemical 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
- C23C22/78—Pretreatment of the material to be coated
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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- General Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
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- Metallurgy (AREA)
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- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
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Abstract
The present invention provides a kind of steelwork aqueous, environmental protective antirust agent and its preparation method and application, the antirust agent includes film forming agent polyvinyl butyral resin and double silane phenolic compounds, corrosion inhibiter A, corrosion inhibiter B, rust resisting pigment trbasic zinc phosphate, dispersant, complexing agent, the solvent of modified additive, other additives, and ethanol and deionized water composition.The rust-preventing film good mechanical property of the antirust agent formation, hardness, consistency are high, and wear-resisting scratch-resistant, impact resistance is strong；It is good with rust resisting pigment compatibility, it is environment-friendly, it is pollution-free；Favorable rust preventing effect, normal temperature cure, film forming is uniform；Adhesion with base material is high；High temperature, low-temperature stability is good, and entirely derust stable system.
Description
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 each component and its content in a kind of highly effective antirust agent for steelwork, the antirust agent：
Film forming agent：Polyvinyl butyral resin:Double silane phenolic compound mass ratio=1:(1 ~ 0.5), 15 ~ 35wt.% of total content；
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 1 ~ 3wt.% of antirust agent total amount；
Corrosion inhibiter B：1 ~ 2wt.% of inositol hexaphosphate；
Rust resisting pigment：3 ~ 6wt.% of trbasic zinc phosphate；
Dispersant：SD-Dispersant 5040 2~4wt.%；
Complexing agent：Ethylenediamine tetra-acetic acid:HPMA mass ratio=1:1, complexing agent accounts for 1 ~ 2.5wt.% of antirust agent total amount
Modified additive：Organic silicon modified by polyether surfactant:Neopelex mass ratio=2:（0.5~1）, total content
0.5~1.5wt.%；
Other additives：0.6 ~ 1wt.% of poly-aspartate；
Remaining as ethanol and deionized water, ethanol：Deionized water volume ratio=3:1.
Described pair of silane phenolic compound has following structural formula：
,
Wherein, R ' is selected from hydroxyl and C1 ~ C10 alkoxy, alkane hydroxyl or alkyl, and wherein OH/R ' ratio is not less than 50%, n
=1~5。
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.
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 polyvinyl butyral resin is added into second
In alcoholic solution, film forming agent solution A is prepared, double silane phenolic compounds is dissolved in deionized water film forming agent solution B is made；Then
Complexing agent, modified additive and poly-aspartate, 50 are added into deionized wateroMagnetic agitation 20min under C, cooling obtains uniform
Mixed liquor；Trbasic zinc phosphate, dispersant are well mixed with deionized water, less than 60 μm obtained Transparent color of fineness are ground in mortar
Slurry；Then above-mentioned corrosion inhibiter A, B and mill base are added into mixed liquor simultaneously, is eventually adding film forming agent solution A and B, in sealing reaction
Under conditions of device, normal temperature, magnetic agitation 1 hour obtains antirust agent.When preparing film forming agent solution A, preferably by the poly- second of film forming agent
In a kind of addition ethanol solution in enol butyral and plasticizer phthalic acid ester, citrate, sebacate, preparation changes
Property film forming agent solution A.
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）The status of film forming agent is indispensable for antirust agent as corrosion inhibiter, and polyvinyl butyral resin has in itself
High anti-corrosion, rustless property and cold resistance, it is most important to the high temperature and low-temperature stability of antirust agent, to gold such as aluminium, steel, iron
Category base material has good adhesive attraction, and polyvinyl butyral resin is submissiveer, can add appropriate plasticizer and be modified, so
And the mechanical performance of polyvinyl butyral film is unsatisfactory, the performance ratio in terms of hardness, consistency, wear-resisting and scratch-resistant
Relatively it is short of, proposed by the present invention pair of silane phenolic compound combines the advantage of phenolic resin and hydroxyl polysiloxanes, phenolic aldehyde
Resin can further improve the water resistance and adhesiveness of antirust film, and on the one hand hydroxyl polysiloxanes improves polyvinyl alcohol contracting fourth
The water solubility of aldehyde, reduces the use of ethanol, on the other hand can improve hardness, consistency, wear-resisting, scratch-resistant and the anti-impact of rust-preventing film
The mechanical performance such as hit, and then strengthen the stability and service life of rust-preventing film, and with the raising of silicone hydroxyl content, for example when
When silicone hydroxyl content accounts for more than the 50% of silylation total amount, the adhesive force with base material on the one hand can be improved, on the other hand with antirust face
The compatibility of material trbasic zinc phosphate gets a promotion so that trbasic zinc phosphate favorable dispersibility in antirust agent composition, so as to greatly enhance anti-
The Corrosion Protection of tranish film；
（2）Using the 4- penetenoic acids of compounding, 2- amion acetic acids and N, N- dimethylethanolamine, heating generation acid amides antirust agent are former
Material, can firmly be attached to metal surface, and mainly carboxylic acid hydramine and N and O atom in alkylolamides molecule has orphan to electricity
Son, the metal surface effect generation adsorptivity diaphragm that can have d unoccupied orbitals with iron etc., prevents corrosive medium oxygen and water equimolecular
Directly contacted with metal surface, and then play effective inhibition protective action；
（3）Trbasic zinc phosphate, colourless five poisonous creatures: scorpion, viper, centipede, house lizard, toad rust resisting pigment, can make steelwork alramenting, so that antisepsis is played, in this antirust agent
Middle favorable dispersibility, can be made into transparent rust-preventing film；
（4）Dispersant SD-Dispersant 5040, high efficiency, low cost pigment dispersing agent can strengthen trbasic zinc phosphate in antirust agent
Compatibility；
（5）Inositol hexaphosphate, directly can be extracted, safety and environmental protection is pollution-free, and can reduce corrosion inhibiter A's from plant
Consumption.With metal ion complexation reaction occurs for the numerous group of the natural organic matter molecule, forms stable chelant ring cover in gold
On metal surface；
（6）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 antirust agent
The complexing of each component；
（7）Neopelex surfactant improves the surface tension of antirust agent, but easily produces bubble, polyether-modified
Organic silicon surfactant has the high suds that disappear for neopelex bubble system, reduces uneven during film forming
Even phenomenon, 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 beneficial technique effect：（1）Rust-preventing film good mechanical property, hardness, densification
Degree is high, and wear-resisting, scratch-resistant, impact resistance is strong；（2）It is good with rust resisting pigment compatibility, rustless property can be further enhanced；（3）Ring
Border is friendly, pollution-free；（4）Favorable rust preventing effect, and with above-mentioned rust remover simultaneously in use, whole derusting rust-proofing process is simple, when
Between it is short, it is better；（5）Normal temperature cure, film forming is uniform, and nothing is punctured, leak or bubble；（6）After film forming, film has anti-corrosion in itself
Performance, and it is higher with the adhesion of base material；（7）High temperature, low-temperature stability is good, and whole derusting system is without layering, or precipitation or change
Matter.
Brief description of the drawings
Fig. 1：The preparation method of steelwork antirust agent.
Embodiment
The silicone hydroxyl content performance test of double silane phenolic compounds：Trbasic zinc phosphate is ground to fineness less than 60 μm, respectively
Mixed with the aqueous solution of double silane phenolic compounds with 16.7%, 33.3%, 50%, 66.7%, 83.3% and 100% silicone hydroxyl content
Close, stirring records dissolving situation.Trbasic zinc phosphate is 1 with double silane compound mass ratioes:2.
Table 1
| Si-OH% | Scattered situation |
| 16.7 | 20min is stirred, is completely dissolved |
| 33.3 | 10 min are stirred, are completely dissolved |
| 50 | 5min is stirred, is completely dissolved |
| 66.7 | 3min is stirred, is completely dissolved |
| 83.3 | 2min is stirred, is completely dissolved |
| 100 | 1min is stirred, is completely dissolved |
It can be seen that, silicone hydroxyl content is higher, and the compatibility of double silane phenolic compounds and trbasic zinc phosphate is better, and trbasic zinc phosphate is in antirust agent
Rate of dispersion faster, evenly, the rustless property of rust-preventing film is better.Tests below and embodiment choose silicone hydroxyl content
Double silane phenolic compounds when 66.7%, n are 2 are tested as film forming agent.
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.
Wear-resisting scraping and wiping resistance performance test：Using abrasion instrument, the mass loss of the record circle of 1000g load abrasion 1000.
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, 25wt.% mass ratioes are 4:1 hydrochloric acid and nitric acid mixed acid
Organic acid, 5wt.% sulfinic acid
Zwitterionic surfactant, 2 wt.% Cocoamidopropyl betaines
Complexing agent, 7 wt.% potassium rhodanides
Corrosion inhibiter, 2wt.% coloured glaze base benzothiazoles
Bleeding agent, 2wt.% heterogeneous ten alcohol polyoxyethylene ethers
Additional salt, 5 wt.% ammonium fluorides
Additional adjuvants, 0.7 wt.% polyoxyethylene polyoxy propyl alcohol amidogen ether and polyoxy second anhydrosorbitol alcohol ester
Fat esters of gallic acid；
It is 3 remaining as 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 A is prepared；Double silane phenolic compounds are dissolved in deionized water film forming agent solution B is made；Then
Complexing agent, modified additive and poly-aspartate, 50 are added into deionized wateroMagnetic agitation 20min under C, cooling obtains uniform
Mixed liquor；Trbasic zinc phosphate, dispersant are well mixed with deionized water, less than 60 μm obtained Transparent color of fineness are ground in mortar
Slurry；Then above-mentioned corrosion inhibiter A, B and mill base are added into mixed liquor simultaneously, is eventually adding film forming agent solution A and B, in sealing reaction
Under conditions of device, normal temperature, magnetic agitation 1 hour obtains antirust agent sample 1#, remaining sample 2# ~ 10# preparation method and sample
1 is consistent, and "-" is no added.
Table 2
| 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# | 9# | 10# | |
| Corrosion inhibiter Aa | 3% | - | 3% | 3% | 3% | 3% | 3% | 3% | 3% | 3% |
| Corrosion inhibiter B | 1.5% | 1.5% | - | 1.5% | 1.5% | 1.5% | 1.5% | 1.5% | 1.5% | 1.5% |
| Rust resisting pigment | 4.5% | 4.5% | 4.5% | - | 4.5% | 4.5% | 4.5% | 4.5% | 4.5% | 4.5% |
| Dispersant | 3% | 3% | 3% | 3% | 3% | 3% | 3% | 3% | 3% | 3% |
| Complexing agentb | 2% | 2% | 2% | 2% | - | 2% | 2% | 2% | 2% | 2% |
| Film forming agent A | 20% | 20% | 20% | 20% | 20% | - | 20% | 20% | 20% | - |
| Film forming agent B | 10% | 10% | 10% | 10% | 10% | 10% | - | 10% | 10% | - |
| Modified additivec | 1% | 1% | 1% | 1% | 1% | 1% | 1% | - | 1% | 1% |
| Other additives | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | - | 1% |
| Film forming | Film forming | Film forming | Film forming | Film forming | Film forming | Film forming | Film forming | Film forming | Film forming | Non- film forming |
| Acid mist corrosion resistance | 1 grade | 2 grades | 3 grades | 3 grades | 2 grades | 3 grades | 3 grades | 2 grades | 2 grades | 5 grades |
| Air humidity corrosion/day | 700+ | <400 | 500 | <350 | <500 | <250 | <300 | 400 | 450 | <15 |
| Wear-resisting loss | 2mg | 2mg | 2mg | 2mg | 2mg | 3mg | 5mg | 2mg | 2mg | 6mg |
| Pencil hardness | 3H | 3H | 3H | 3H | 3H | 2H | 1H | 3H | 3H | ＜ 1H |
| Adhesive force | 1 grade | 1 grade | 1 grade | 1 grade | 1 grade | 2 grades | 3 grades | 1 grade | 1 grade | 4 grades |
| Impact strength kg/cm | ＞ 50 | ＞ 50 | ＞ 50 | ＞ 50 | ＞ 50 | 40 | 20 | ＞ 50 | ＞ 50 | 15 |
| Stability test | It is stable | It is stable | It is stable | It is stable | It is unstable | It is stable | It is stable | It is stable | It is stable | It is unstable |
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, nontoxic, and antirust agent can be good at being coated in metal surface, dries rear film water white transparency, uniform complete, wear-resisting,
Scratch-resistant, hardness is high, shock resistance, and adhesive force is strong, and anti-rust and corrosionproperties are splendid after film forming, and antirust agent stability is higher, uses
Long lifespan, improves the use 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 (7)
1. a kind of steelwork aqueous, environmental protective antirust agent, it is characterised in that the antirust agent contains following several components：
Film forming agent：Polyvinyl butyral resin and double silane phenolic compounds, described pair of silane phenolic compound have following structure
Formula：
Explanation:Explanation:Explanation:Explanation:Explanation:Structural formula
Wherein, R ' is selected from hydroxyl and C1 ~ C10 alkoxy, alkane hydroxyl or alkyl, OH/R ' ratio be not less than 50%, n=1 ~
5；
Corrosion inhibiter A：4- penetenoic acids, 2- amion acetic acids and N, N- dimethylethanolamine；
Corrosion inhibiter B：Inositol hexaphosphate；
Rust resisting pigment：Trbasic zinc phosphate；
Dispersant：SD-Dispersant 5040；
Complexing agent：Ethylenediamine tetra-acetic acid and HPMA；
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：
Film forming agent：Polyvinyl butyral resin:Double silane phenolic compound mass ratio=1:(1 ~ 0.5), 15 ~ 35wt.% of total content；
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 1 ~ 3wt.% of antirust agent total amount；
Corrosion inhibiter B：1 ~ 2wt.% of inositol hexaphosphate；
Rust resisting pigment：3 ~ 6wt.% of trbasic zinc phosphate；
Dispersant：SD-Dispersant 5040 2~4wt.%；
Complexing agent：Ethylenediamine tetra-acetic acid:HPMA mass ratio=1:1, complexing agent accounts for 1 ~ 2.5wt.% of antirust agent total amount；
Modified additive：Organic silicon modified by polyether surfactant:Neopelex mass ratio=2:（0.5~1）, total content
0.5~1.5wt.%；
Other additives：0.6 ~ 1wt.% of poly-aspartate；
Remaining as ethanol and deionized water, ethanol：Deionized water volume ratio=3:1.
3. antirust agent as claimed in claim 1 or 2, it is characterised in that also contain 0.05 ~ 2wt.% plasticizer in antirust agent,
The one kind of the plasticizer in phthalic acid ester, citrate, sebacate, by film forming agent polyvinyl butyral resin and increasing
Mould in a kind of addition ethanol solution in agent phthalic acid ester, citrate, sebacate, prepare modified film forming agent solution.
4. the antirust agent as described in any one of claim 1 ~ 3, it is characterised in that covered using the mode for brushing, spraying or soaking
In steelwork surface, soak time is less than 0.5 hour, more than 1 minute, is then placed into 20 ~ 30oIn C insulating boxs, humidity is controlled
Below 30%, finally in metal surface film forming.
5. the preparation method of the steelwork aqueous, environmental protective antirust agent as described in claim 1 ~ 4, 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 polyvinyl butyral resin is added in ethanol solution, film forming agent solution A is prepared, by double silane phenolic compounds
It is dissolved in deionized water and film forming agent solution B is made；Then complexing agent, modified additive and poly- asparagus fern ammonia are added into deionized water
Acid, 50oMagnetic agitation 20min under C, cooling obtains uniform mixed liquor；Trbasic zinc phosphate, dispersant are well mixed with deionized water,
Fineness is ground in mortar transparent mill base is made less than 60 μm；Then above-mentioned corrosion inhibiter A, B and mill base are added into mixing simultaneously
Liquid, is eventually adding film forming agent solution A and B, under conditions of sealing reactor, and normal temperature, magnetic agitation 1 hour obtains antirust agent.
6. the preparation method of antirust agent as claimed in claim 5, it is characterised in that when preparing film forming agent solution A, 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 A.
7. the application method of the steelwork aqueous, environmental protective antirust agent as described in any one of claim 1 ~ 3, it is characterised in that make
Before antirust agent, surface preparation-processing of rust removing-washing-dehydrogenation-natural cooling is carried out to the steelwork got rusty in advance
Processing, becomes rusty, processing of rust removing is chemical derusting, is removed wherein surface treatment removes part to be polished in advance using 240# ~ 360# sand paper
Rust agent contains 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.%, its
In inorganic mixed acid be that mass ratio is 4:1 hydrochloric acid and nitric acid mixed acid, organic acid is in sulfinic acid, sulfamic acid or oxalic acid
One or more mixtures, zwitterionic surfactant is Cocoamidopropyl betaine, and complexing agent is potassium rhodanide or sulphur
One kind in Zassol, corrosion inhibiter is one kind in coloured glaze base benzothiazole, sodium metasilicate, methenamine, and bleeding agent is the alcohol of isomery ten
APEO, additional salt is ammonium fluoride, and additional adjuvants are not influence the polyoxyethylene polyoxy propyl alcohol amidogen ether or poly- of bubble system
Dimethyl siloxane defoamer, and polyoxy second fatty acid esters of sorbitan class or polyoxyethylene fatty acid ester class solubilizer.
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| CN114196962A (en) * | 2021-10-29 | 2022-03-18 | 浙江众为环保材料有限公司 | Neutral rust removing liquid and rust removing method |
| CN114196962B (en) * | 2021-10-29 | 2023-11-21 | 浙江万众新材料有限公司 | Neutral rust removing liquid and rust removing method |
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