CN106147463A - A kind of steel anti-corrosive erosion resisting coating and its preparation method and application technique - Google Patents
A kind of steel anti-corrosive erosion resisting coating and its preparation method and application technique Download PDFInfo
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- CN106147463A CN106147463A CN201610520720.XA CN201610520720A CN106147463A CN 106147463 A CN106147463 A CN 106147463A CN 201610520720 A CN201610520720 A CN 201610520720A CN 106147463 A CN106147463 A CN 106147463A
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- 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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F8/00—Chemical modification by after-treatment
- C08F8/34—Introducing sulfur atoms or sulfur-containing groups
- C08F8/36—Sulfonation; Sulfation
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- 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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
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Abstract
The invention discloses a kind of steel anti-corrosive erosion resisting coating, described steel anti-corrosive erosion resisting coating is prepared from water-base resin, defoamer, glucose acid amide and water for raw material, wherein, water-base resin is to be prepared from by the preparation of copolymer, the sulfonation of copolymer and phosphate-doped three steps；The invention also discloses the preparation method and application technique of described steel anti-corrosive erosion resisting coating, its technique for applying includes: surface of steel workpiece pre-treatment, the process of nitriding fluorine, coating base coat, drying, coated side coating and six process sections of drying.It is desirable to provide a kind of preparation method and application technique is simple, raw material is easy to get, easily operation, less demanding, with low cost to equipment, and the steel anti-corrosive erosion resisting coating that antiseptic property is excellent.
Description
Technical field
The invention belongs to metal corrosion and protection field, relate to a kind of coating and its preparation method and application technique, especially
Relate to a kind of steel anti-corrosive erosion resisting coating and its preparation method and application technique.
Background technology
The application of metal material is the distinctive marks in epoch, the close phase of progress of its development with human civilization and society
Close.In the modern times, miscellaneous metal material has become the important substance basis of human social development.Ferrous metal material is due to valency
Lattice are cheap, and mechanical performance is excellent and is widely used, but, all there is more defect in iron and steel parts during using, such as:
Easily oxidized, it easily is corroded.For drawbacks described above, generally take at present is " method for protecting surface ", comprising: protective coating,
Electrodeposited coating protection and corrosion inhibiter protection.But at existing electrodeposited coating guard technology, generally there is second-rate, density metal not
Foot, increased number of stomata, and coating is not firm so that product second-rate.The pretreatment procedure of corrosion inhibiter process for protecting is loaded down with trivial details,
Technique power consumption is big, and efficiency is low, seriously polluted.And in prior art, the adhesive force obtained by protective coating is frequently not very
Ideal, the compactness of film is unstable simultaneously, therefore there is also in place of being worth improving.
Coating, as the main component of coating, plays vital effect in the construction of iron and steel parts protective coating, its
The quality of performance directly affects and is applied steel protected effect and service life.In addition, before selecting suitable metal surface
Process and coating process matches with the coating of selection, be to ensure that High Performance Corrosion Protective Coatings plays the premise of best protection performance.
Therefore, it is necessary to seek more efficient way, research and develop antiseptic property excellent, locate before surface of steel workpiece
Reason and coating process simple steel anti-corrosive coating.
Content of the invention
In order to overcome deficiency of the prior art, the invention discloses a kind of steel anti-corrosive erosion resisting coating and preparation method thereof and
Technique for applying, the antiseptic property of this corrosion-inhibiting coating is excellent, and during Anticorrosion Construction, metal surface pre-treatment and coating process are simple.
For reaching object above, the technical solution used in the present invention is:
A kind of steel anti-corrosive erosion resisting coating, is to be prepared from by the raw material of following percetage by weight:
Water-base resin 40-60%,
Defoamer 2-5%,
Glucose acid amide 4-6%,
Remaining is deionized water；
Wherein, the preparation method of described water-base resin, is achieved by the steps of:
(1) preparation of copolymer
After acrylic acid, acrylonitrile, vinyltrimethoxy silane, vinylpyridine and azo-initiator are mixed
Add solvent, after continuously stirring reaction 4-8h in the inert atmosphere of 22-27 DEG C, obtain crude product A, by crude product A in acetone
Sedimentation, then uses chloroform 5-7 time, is dried 12-24h, obtains copolymer at vacuum 58-62 DEG C；
Wherein, one in dimethyl sulfoxide, 1-METHYLPYRROLIDONE or DMF for the described solvent；
Described azo-initiator is azodiisobutyronitrile or ABVN；
(2) sulfonation of copolymer:
The copolymer preparing in a certain amount of step (1) is dissolved in wiring solution-forming in dimethyl sulfoxide, then adds successively
Enter TBAB, NaOH and Isosorbide-5-Nitrae-butyl sultone, then stirring 5-8h is produced under inert atmosphere, room temperature condition
Thing B, after after filtering product B, the filter cake acetone of gained and ethanol replace washing 5-7 time, drying 12-at vacuum 58-62 DEG C
24h, obtains the copolymer after sulfonation；
(3) phosphate-doped
Copolymer after the sulfonation that will obtain in step (2) soaks in the phosphate aqueous solution that mass concentration is 50-70%
After 30-40h, then soak 1-2h in deionized water, at 60 DEG C of vacuum, be then dried 12-24h, i.e. obtain water-soluble resin.
As a kind of preferred embodiment, in step (1), acrylic acid, acrylonitrile, vinyltrimethoxy silane, ethene
The mass ratio of yl pyridines, azo-initiator and solvent is: 4: 1: 1: 1: 0.01: (5-8).
As a kind of preferred embodiment, in step (2), copolymer, dimethyl sulfoxide, TBAB, NaOH
Mass ratio with Isosorbide-5-Nitrae-butyl sultone is: 100: (500-800): (4-5): (5-10): (150-200).
Preferably, one or more in tributyl phosphate, modest 3100th, the BYK088 of moral of described defoamer.
The invention also discloses a kind of preferred preparation method of described steel anti-corrosive erosion resisting coating, be to be prepared via a method which
:
After the deionized water mixing and stirring with 50-60% weight portion for the 60-70% weight portion defoamer, add water-soluble
Property resin, then with sand mill, fineness is worn into 5-20 μm, adds glucose acid amide and the defoamer of residuals weight part, with turning
The high speed dispersor dispersion 40-50min that speed is 1000-1500r/min, adds the deionized water of residuals weight part, uses 150-250
Mesh filter-cloth filtering, prepares corrosion-inhibiting coating.
Additionally, the invention also discloses the technique for applying of described corrosion-inhibiting coating, comprise the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, will
Furnace temperature is heated to 280-320 DEG C, is passed through Azide fluorine, then furnace temperature rises to 580-600 DEG C, is incubated 3-4h, is then shut off gas,
It is passed through nitrogen, carry out cooling to 500 DEG C, come out of the stove；
3) coating base coat: the iron and steel parts after processing nitriding fluorine is preheated to 100-120 DEG C, then uses electric arc spraying skill
Art sprays, to surface of steel workpiece, the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 100-120 DEG C of hot blast to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 100-120 DEG C, then use electric arc spraying
Technology sprays, to surface of steel workpiece, the corrosion-inhibiting coating preparing；
6) dry: through step 5) after the iron and steel parts that obtains utilize 100-120 DEG C of hot blast to dry.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the steel anti-corrosive erosion resisting coating of present invention design, preparation method and application technique is simple, raw material is easy to get, easily grasps
Make, less demanding to equipment, with low cost；
(2) the steel anti-corrosive erosion resisting coating of present invention design, on resin absorption and the Phosphate hydrolysis on resin obtain
Phosphoric acid, has the ability converting iron rust to a certain extent, rust transformation can be become have the iron and steel diaphragm of antiseptic property, also
Generation phosphating coat can be reacted with iron；
(3) the steel anti-corrosive erosion resisting coating of present invention design, has good permeability, and it can penetrate iron rust and conversion product
Each small spaces in, to strengthen their adhesive force；Siloxane group on molecular resin can strengthen coating and iron and steel parts
Adhesive force, acrylonitrile add polymer monomers, resin film forming and mechanical performance can be strengthened；Molecular resin main chain is-C-C-
The covalent bond of chain, has good acid and alkali resistance and moisture-resistance；
(4) the steel anti-corrosive erosion resisting coating of present invention design, adds glucose acid amide in formula, on the one hand can improve
The film forming of coating；On the other hand, glucose acid group and ammonium root adsorb at surface of steel workpiece, by chelation in iron and steel work
Part surface forms the adsorbed film of densification, can improve coating corrosion resistance further；
(5) technique for applying of the steel anti-corrosive erosion resisting coating of present invention design, before applying coating, it is not necessary to rust cleaning, technique
Simplicity, processes technique by nitriding fluorine, can realize that N-F oozes altogether, improves the wearability of iron and steel parts, anti-fatigue ability and anticorrosive
Property.
Detailed description of the invention
Hereinafter describe and be used for disclosing the present invention so that those skilled in the art are capable of the present invention.Below describe in excellent
Select embodiment to be only used as citing, it may occur to persons skilled in the art that other obvious modification.
Raw material used in the following embodiment of the present invention comes from Haiquan sunrise foreign trade Co., Ltd.
Embodiment of the present invention corrosion-inhibiting coating compactness, rust-preventing characteristic, anticorrosive property test are with reference to standard GB/T/T15519-
2002.Adhesive force test is by with reference to standard GB/T/T9286-1998 " cross cut test of paint and varnish paint film ".
Embodiment 1
A kind of steel anti-corrosive erosion resisting coating, by mass percentage, composed of the following components: water-base resin 40%, defoamer
Tributyl phosphate 2%, glucose acid amide 4%, remaining is deionized water.
The preparation method of described water-base resin, comprises the following steps:
1) preparation of copolymer: by 400g acrylic acid, 100g acrylonitrile, 100g vinyltrimethoxy silane, 100g second
Thiazolinyl pyridine and the mixing of 1g azodiisobutyronitrile are placed in flask, add dimethyl sulfoxide 500g, in 25 DEG C of ambient temperature under nitrogen atmosphere
In continuously stir reaction 4h after the crude product that obtains settle in acetone, then with after chloroform 5 times at 60 DEG C of vacuum dry
Dry 12h, obtains copolymer；
2) sulfonation of copolymer: by 100g step 1) in the copolymer for preparing be dissolved in 500g dimethyl sulfoxide is made into molten
Liquid, is placed in flask, is then sequentially added into the Isosorbide-5-Nitrae-butyl sultone shape of 4g TBAB, 5g NaOH and 150g
Resulting mixture, thing mixed above stirs 5h under nitrogen atmosphere room temperature and obtains product, the filter cake obtaining after filtering product, successively
Replace with acetone and ethanol and at 60 DEG C of vacuum, be dried 12h after washing 5 times, obtain the copolymer after sulfonation；
3) phosphate-doped: by step 2) in copolymer after the sulfonation that obtains be immersed in 40h in the phosphate aqueous solution of 50%
After, then soak 2h in deionized water, it at 60 DEG C of vacuum, is then dried 15h i.e. can get water-soluble resin.
The preparation method of a kind of steel anti-corrosive erosion resisting coating: by the deionization of the defoamer of 60% weight portion and 50% weight portion
After water mixing and stirring, add water-soluble resin, then with sand mill, fineness is worn into 10-20 μm, add gluconic acid
Amine and the defoamer of residuals weight part, with the high speed dispersor dispersion 40min that rotating speed is 1000r/min, add residuals weight part
Deionized water, with 200 mesh filter-cloth filterings, prepare corrosion-inhibiting coating.
The technique for applying of a kind of steel anti-corrosive erosion resisting coating, comprises the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, will
Furnace temperature is heated to 280 DEG C, is passed through Azide fluorine, then furnace temperature rises to 580 DEG C, is incubated 3h, is then shut off gas, is passed through nitrogen,
Carry out cooling to 500 DEG C, come out of the stove；
3) coating base coat: by nitriding fluorine process after iron and steel parts be preheated to 100 DEG C, then use arc spraying technology to
Surface of steel workpiece sprays the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 100 DEG C of DEG C of hot blasts to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 100 DEG C, then use arc spraying technology
Spray the corrosion-inhibiting coating preparing to surface of steel workpiece；
6) dry: through step 5) after the iron and steel parts that obtains utilize 100 DEG C of hot blasts to dry.
Embodiment 2
A kind of steel anti-corrosive erosion resisting coating, by mass percentage, composed of the following components: water-base resin 45%, defoamer
Moral modest 31003%, glucose acid amide 4.5%, remaining is deionized water.
The preparation method of described water-base resin, comprises the following steps:
1) preparation of copolymer: by 400g acrylic acid, 100g acrylonitrile, 100g vinyltrimethoxy silane, 100g second
Thiazolinyl pyridine and ABVN 1g mixing are placed in flask, add 600gN-methyl pyrrolidone, helium under 25 DEG C of room temperatures
Atmosphere continuously stirs reaction 5h in enclosing, after reaction terminates, settle crude product in acetone, rear with after chloroform 6 times very
It is dried 18h at empty 62 DEG C, obtain copolymer；
2) sulfonation of copolymer: by 100g step 1) in the copolymer for preparing be dissolved in dimethyl sulfoxide 600g is made into molten
Liquid, is placed in flask, and rear addition TBAB 4.5g, NaOH 7g and Isosorbide-5-Nitrae-butyl sultone 170g form mixing
Thing, thing mixed above stirs 6h under helium-atmosphere peripheral cell temperature, and after reaction terminates, product, by filtering, uses acetone and ethanol successively
It is dried 18h after alternately washing 6 times at 62 DEG C of vacuum, obtain the copolymer after sulfonation；
3) phosphate-doped: by step 2) in copolymer after the sulfonation that obtains be immersed in 35h in the phosphate aqueous solution of 60%
After, then soak 1h in deionized water, it at 60 DEG C of vacuum, is then dried 20h i.e. can get water-soluble resin；
The preparation method of a kind of steel anti-corrosive erosion resisting coating: by the deionization of the defoamer of 65% weight portion and 55% weight portion
After water mixing and stirring, add water-soluble resin, then with sand mill, fineness is worn into 5-20 μm, add glucose acid amide
With the defoamer of residuals weight part, with the high speed dispersor dispersion 45min that rotating speed is 1200r/min, add residuals weight part
Deionized water, with 220 mesh filter-cloth filterings, prepares corrosion-inhibiting coating.
The technique for applying of a kind of steel anti-corrosive erosion resisting coating, comprises the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, will
Furnace temperature is heated to 300 DEG C, is passed through Azide fluorine, then furnace temperature rises to 590 DEG C, is incubated 3h, is then shut off gas, is passed through nitrogen,
Carry out cooling to 500 DEG C, come out of the stove；
3) coating base coat: by nitriding fluorine process after iron and steel parts be preheated to 110 DEG C, then use arc spraying technology to
Surface of steel workpiece sprays the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 110 DEG C of hot blasts to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 100 DEG C, then use arc spraying technology
Spray the corrosion-inhibiting coating preparing to surface of steel workpiece；
6) dry: through step 5) after the iron and steel parts that obtains utilize 120 DEG C of hot blasts to dry.
Embodiment 3
A kind of steel anti-corrosive erosion resisting coating, by mass percentage, composed of the following components: water-base resin 50%, defoamer
BYK088 4%, glucose acid amide 5%, remaining is deionized water.
The preparation method of described water-base resin, comprises the following steps:
1) preparation of copolymer: by 400g acrylic acid, 100g acrylonitrile, 100g vinyltrimethoxy silane, 100g second
Thiazolinyl pyridine and azodiisobutyronitrile 1g mixing are placed in flask, add DMF 700g, under 25 DEG C of room temperatures
Argon atmosphere continuously stirs reaction 7h, after reaction terminates, crude product is settled in acetone, rear with after chloroform 7 times
It is dried 22h at 58 DEG C of vacuum, obtain copolymer；
2) sulfonation of copolymer: by 100g step 1) in the copolymer for preparing be dissolved in dimethyl sulfoxide 700g is made into molten
Liquid, is placed in flask, is then sequentially added into TBAB 5g, NaOH 7g and Isosorbide-5-Nitrae-butyl sultone 190g and is formed
Mixture, thing mixed above stirs 8h under argon atmosphere room temperature, after reaction terminates, product by filtering, successively with acetone and
Ethanol is dried 24h after alternately washing 7 times at 58 DEG C of vacuum, obtains the copolymer after sulfonation；
3) phosphate-doped: by step 2) in copolymer after the sulfonation that obtains be immersed in 37h in the phosphate aqueous solution of 65%
After, then soak 2h in deionized water, it at 60 DEG C of vacuum, is then dried 15h i.e. can get water-soluble resin.
The preparation method of a kind of steel anti-corrosive erosion resisting coating: by the deionization of the defoamer of 66% weight portion and 58% weight portion
After water mixing and stirring, add water-soluble resin, then with sand mill, fineness is worn into 5-10 μm, add glucose acid amide
With the defoamer of residuals weight part, with the high speed dispersor dispersion 46min that rotating speed is 1400r/min, add residuals weight part
Deionized water, with 250 mesh filter-cloth filterings, prepares corrosion-inhibiting coating.
The technique for applying of a kind of steel anti-corrosive erosion resisting coating, comprises the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, will
Furnace temperature is heated to 300 DEG C, is passed through Azide fluorine, then furnace temperature rises to 585 DEG C, is incubated 3.5h, is then shut off gas, is passed through nitrogen
Gas, carries out cooling to 500 DEG C, comes out of the stove；
3) coating base coat: by nitriding fluorine process after iron and steel parts be preheated to 100 DEG C, then use arc spraying technology to
Surface of steel workpiece sprays the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 110 DEG C of hot blasts to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 115 DEG C, then use arc spraying technology
Spray the corrosion-inhibiting coating preparing to surface of steel workpiece；
6) dry: through step 5) after the iron and steel parts that obtains utilize 120 DEG C of hot blasts to dry.
Embodiment 4
A kind of steel anti-corrosive erosion resisting coating, by mass percentage, composed of the following components: water-base resin 60%, defoamer
Tributyl phosphate 5%, glucose acid amide 6%, remaining is deionized water.
The preparation method of described water-base resin, comprises the following steps:
1) preparation of copolymer: by 400g acrylic acid, 100g acrylonitrile, 100g vinyltrimethoxy silane, 100g second
Thiazolinyl pyridine and ABVN 1g mixing are placed in flask, add dimethyl sulfoxide 800g, in 25 DEG C of ambient temperature under nitrogen atmosphere
In continuously stir reaction 8h, after reaction terminates, crude product is settled in acetone, rear with after chloroform 7 times in 61 DEG C of vacuum
Lower dry 24h, obtains copolymer；
2) sulfonation of copolymer: by 100g step 1) in the copolymer for preparing be dissolved in dimethyl sulfoxide 800g is made into molten
Liquid, is placed in flask, is then sequentially added into TBAB 5g, NaOH 10g and Isosorbide-5-Nitrae-butyl sultone 200g, with
Upper mixture stirs 8h under nitrogen atmosphere room temperature, and after reaction terminates, product, by filtering, is successively washed by acetone and ethanol respectively
It is dried 14h after washing 7 times at 59 DEG C of vacuum, obtain the copolymer after sulfonation；
3) phosphate-doped: by step 2) in copolymer after the sulfonation that obtains be immersed in 40h in the phosphate aqueous solution of 70%
After, then soak 2h in deionized water, it at 60 DEG C of vacuum, is then dried 24h i.e. can get water-soluble resin.
The preparation method of a kind of steel anti-corrosive erosion resisting coating: by the deionization of the defoamer of 70% weight portion and 60% weight portion
After water mixing and stirring, add water-soluble resin, then with sand mill, fineness is worn into 15-20 μm, add gluconic acid
Amine and the defoamer of residuals weight part, with the high speed dispersor dispersion 50min that rotating speed is 1500r/min, add residuals weight part
Water, with 150 mesh filter-cloth filterings, prepare corrosion-inhibiting coating.
The technique for applying of a kind of steel anti-corrosive erosion resisting coating, comprises the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, will
Furnace temperature is heated to 320 DEG C, is passed through Azide fluorine, then furnace temperature rises to 600 DEG C, is incubated 4h, is then shut off gas, is passed through nitrogen,
Carry out cooling to 500 DEG C, come out of the stove；
3) coating base coat: by nitriding fluorine process after iron and steel parts be preheated to 120 DEG C, then use arc spraying technology to
Surface of steel workpiece sprays the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 120 DEG C of hot blasts to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 120 DEG C, then use arc spraying technology
Spray the corrosion-inhibiting coating preparing to surface of steel workpiece；
6) dry: through step 5) after the iron and steel parts that obtains utilize 120 DEG C of hot blasts to dry.
After tested, the iron and steel parts mass fraction after each embodiment is processed is that 3% copper-bath drop keeps
15min, all without erythema, is 3% sodium chloride solution leaching 60min with mass fraction, all without rust staining.Iron and steel parts mass fraction
It is that 5% oxalic acid solution drop keeps 15min, all corrosion-free spot.And each embodiment adhesive force grade is 0 grade.
General principle, principal character and the advantages of the present invention of the present invention have more than been shown and described.The technology of the industry
The simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and specification for the personnel
Principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these change and
In the range of improvement both falls within claimed invention.The protection domain of application claims by appending claims and
Equivalent defines.
Claims (6)
1. a steel anti-corrosive erosion resisting coating, it is characterised in that be to be prepared from by the raw material of following percetage by weight:
Water-base resin 40-60%,
Defoamer 2-5%,
Glucose acid amide 4-6%,
Remaining is deionized water；
Wherein, the preparation method of described water-base resin, is achieved by the steps of:
(1) preparation of copolymer
Add after acrylic acid, acrylonitrile, vinyltrimethoxy silane, vinylpyridine and azo-initiator are mixed
Solvent, obtains crude product A after continuously stirring reaction 4-8h, sink crude product A in acetone in the inert atmosphere of 22-27 DEG C
Fall, then uses chloroform 5-7 time, is dried 12-24h, obtains copolymer at vacuum 58-62 DEG C；
Wherein, one in dimethyl sulfoxide, 1-METHYLPYRROLIDONE or DMF for the described solvent；
Described azo-initiator is azodiisobutyronitrile or ABVN；
(2) sulfonation of copolymer
The copolymer preparing in step (1) is dissolved in wiring solution-forming in dimethyl sulfoxide, is then sequentially added into tetrabutyl phosphonium bromide
Ammonium, NaOH and Isosorbide-5-Nitrae-butyl sultone, then stirring 5-8h obtains product B, by product B under inert atmosphere, room temperature condition
After after filtration, the filter cake acetone of gained and ethanol replace washing 5-7 time, at vacuum 58-62 DEG C, drying 12-24h, obtains sulphur
Copolymer after change；
(3) phosphate-doped
Copolymer after the sulfonation that will obtain in step (2) soaks 30-in the phosphate aqueous solution that mass concentration is 50-70%
After 40h, then soak 1-2h in deionized water, at 60 DEG C of vacuum, be then dried 12-24h, i.e. obtain water-soluble resin.
2. steel anti-corrosive erosion resisting coating as claimed in claim 1, it is characterised in that: in step (1), acrylic acid, acrylonitrile, vinyl
The mass ratio of trimethoxy silane, vinylpyridine, azo-initiator and solvent is: 4: 1: 1: 1: 0.01: (5-8).
3. steel anti-corrosive erosion resisting coating as claimed in claim 2, it is characterised in that: in step (2), copolymer, dimethyl sulfoxide, four fourths
The mass ratio of base ammonium bromide, NaOH and Isosorbide-5-Nitrae-butyl sultone is: 100: (500-800): (4-5): (5-10): (150-
200)。
4. steel anti-corrosive erosion resisting coating as claimed in claim 1, it is characterised in that: described defoamer is modest selected from tributyl phosphate, moral
3100th, one or more in BYK088.
5. the preparation method of steel anti-corrosive erosion resisting coating as described in arbitrary in claim 1-4, it is characterised in that be by such as lower section
Method is prepared from:
After the deionized water mixing and stirring with 50-60% weight portion for the 60-70% weight portion defoamer, add water solubility tree
Then fineness is worn into 5-20 μm with sand mill by fat, adds glucose acid amide and the defoamer of residuals weight part, with rotating speed is
The high speed dispersor dispersion 40-50min of 1000-1500r/min, adds the deionized water of residuals weight part, with the filter of 150-250 mesh
Cloth filters, and prepares corrosion-inhibiting coating.
6. the technique for applying of corrosion-inhibiting coating described in a claim 5, it is characterised in that comprise the steps:
1) surface of steel workpiece pre-treatment: surface of steel workpiece is carried out oil removing, cleaning, process ultrasonic, dry；
2) nitriding fluorine process: will be through step 1) process after iron and steel parts load seal nitempering furnace in, by furnace temperature
It is heated to 280-320 DEG C, is passed through Azide fluorine, then furnace temperature is risen to 580-600 DEG C, be incubated 3-4h, be then shut off gas, be passed through
Nitrogen, carries out cooling to 500 DEG C, comes out of the stove；
3) coating base coat: by nitriding fluorine process after iron and steel parts be preheated to 100-120 DEG C, then use arc spraying technology to
Surface of steel workpiece sprays the corrosion-inhibiting coating preparing；
4) dry: through step 3) after the iron and steel parts that obtains utilize 100-120 DEG C of hot blast to dry；
5) coated side coating: by through step 4) after the iron and steel parts that obtains be preheated to 100-120 DEG C, then use arc spraying technology
Spray the corrosion-inhibiting coating preparing to surface of steel workpiece；
6) dry: through step 5) after the iron and steel parts that obtains utilize 100-120 DEG C of hot blast to dry.
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| CN110205811A (en) * | 2019-07-16 | 2019-09-06 | 马鞍山市盈天钢业有限公司 | A kind of preparation method of the fixed protective materials for metal welded tube |
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