CN105419565B - A kind of modified environment-friendly anticorrosive paint and preparation method - Google Patents

A kind of modified environment-friendly anticorrosive paint and preparation method Download PDF

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CN105419565B
CN105419565B CN201511003285.5A CN201511003285A CN105419565B CN 105419565 B CN105419565 B CN 105419565B CN 201511003285 A CN201511003285 A CN 201511003285A CN 105419565 B CN105419565 B CN 105419565B
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feocl
anticorrosive paint
modified
agent
environment
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CN105419565A (en
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刘少杰
贾明岳
陆文卿
韩佳佳
张建
张苗苗
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Shandong bitland new materials Co. Ltd.
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Shandong University
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02Polyamines
    • C08G73/026Wholly aromatic polyamines
    • C08G73/0266Polyanilines or derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

The present invention relates to a kind of modified environment-friendly anticorrosive paint and preparation method, the raw material which includes following mass percent forms:Epoxy resin latex 30% 60%, curing agent 5 10%, polyaniline-modified FeOCl 5 15%, aluminium triphosphate 5 10%, trbasic zinc phosphate 2 5%, iron oxide red 2 8%, titanium dioxide 1 5%, mica powder 1 5%, Meteorological Act white carbon 0.1% 2%, silane coupling agent 0.1% 2%, defoamer 0.1% 3%, anti-settling agent 1% 3%, anti-flash rusting agent 0.1% 5%.The present invention also provides the preparation method of above-mentioned anticorrosive paint.The anticorrosive paint of the present invention, easily dry, safety and environmental protection, unharmful substance, corrosion resistance is strong, strong acid-base resistance, non-aging peeling, has excellent adhesive force, pliability is good, hardness is high;Without volatility organic molecule, asepsis environment-protecting, corrosion resistance and excellent physical properties after coating forms a film.

Description

A kind of modified environment-friendly anticorrosive paint and preparation method
Technical field
The present invention relates to a kind of environmentally friendly anticorrosive paint and preparation method, belong to anticorrosive coating field.
Background technology
Metal erosion is a kind of very universal phenomenon, and it is seldom because simple machinery or physical factor are drawn to corrode Rise, most damage all has close relationship with its surrounding enviroment.Corrosion of metal is present in national economy and national defence is built If every field, not only the facility in national economy and national defense construction is caused greatly to damage, but also in metal erosion Stress corrosion and corrosion fatigue caused by accident can endanger personal safety.Metal erosion causes substantial amounts of energy resources wave Take and environmental pollution.
To metal protect most practical, economic, effective method using coating.Therefore the research one to anticorrosive paint It is directly the important topic of metal coating and coating industry.Traditional anticorrosive metal paint is almost solvent based coating, into Volatilize in membrane process with substantial amounts of solvent.The solvent of volatilization not only damages to the environment of human body and periphery and dirt Dye, while also result in the waste of resource.And the rust resisting pigment added in traditional anticorrosive paint is all harmful containing lead, chromium etc. Material, equally damages human body and environment.With the continuous improvement to environmental requirement, environmental consciousness it is continuous strengthen and The stringent control of laws and regulations environmental pollution, there is an urgent need to environmentally friendly coating at present.Therefore to the anti-corrosion of environment-friendly type The cry of coating is increasingly apparent.
To reduce the pollution to environment, the research to environment-friendly type coating at present concentrates on water paint and low solvent-borne type applies Material.Epoxy coating is the environment-friendly type coating of current application prospect maximum.Except coating in itself, the selection of rust resisting pigment and make With a very important factor for being also decision coating property quality.In order to substitute the poisonous pigment such as traditional chrome yellow, red lead, People have studied such as trbasic zinc phosphate, aluminium triphosphate, and the rust resisting pigment of scale class, such as Chinese patent literature CN102382494A (Application number:201110226841.0)Disclosed glass flake anticorrosion paint, but these rust resisting pigments disperse there are of high cost Property is bad, than it is great the shortcomings of.Polyaniline has very excellent performance, such as Chinese patent literature in anticorrosive paint CN102634276A(Application number:201210125211.9)Disclosed a kind of polyaniline anti-corrosive paint and preparation method thereof, this is anti- Rotten coating has used polyaniline-modified montmorillonite Composite filler, play good anti-corrosion effect, but montmorillonite is in itself Anti-corrosion effect is simultaneously bad, and modifying process is cumbersome.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of environmentally friendly anticorrosive paint and preparation method.The present invention's is anti- Rotten coating, easily dry, safety and environmental protection, unharmful substance, corrosion resistance is strong, strong acid-base resistance, non-aging peeling, has excellent Adhesive force, pliability is good, hardness is high.The preparation method of the anticorrosive paint is simple, cost is low, can produce and apply at normal temperatures and pressures Cover, paint film physical property and excellent anti-corrosion performance after curing, asepsis environment-protecting, paint stability is high.
Technical scheme is as follows:
A kind of modified environment-friendly anticorrosive paint, the raw material which includes following mass percent form:
Epoxy resin latex 30%-60%, curing agent 5-10%, polyaniline-modified FeOCl 5-15%, aluminium triphosphate 5- 10%, trbasic zinc phosphate 2-5%, iron oxide red 2-8%, titanium dioxide 1-5%, mica powder 1-5%, Meteorological Act white carbon 0.1%-2%, silane are even Join agent 0.1%-2%, defoamer 0.1%-3%, anti-settling agent 1%-3%, anti-flash rusting agent 0.1%-5%.
, according to the invention it is preferred to, the polyaniline-modified FeOCl is made as follows:
(i)FeOCl is dried, grind after be distributed in aniline, ultrasonic disperse 10-30min, under lucifuge, nitrogen environment 1-7d is stirred, the 60-90 DEG C of drying under nitrogen protection of filtering obtained solid, grinds to obtain FeOCl-An composite powders;
(ii)FeOCl-An composite powders are dispersed in water, ultrasonic disperse 10-30min, then stirs 1-4h;
(iii)By step(ii)Gained system is slowly added dropwise under agitation(0.1-1)The ammonium persulfate solution of mol/L, so After continue stir 4-12h, ammonium persulfate:The mass ratio of FeOCl-An is 1:(10-20);Solid is obtained by filtration, is dried at 60-90 DEG C It is dry, grinding, up to polyaniline-modified FeOCl.
, according to the invention it is preferred to, the epoxy resin latex is MU-601 epoxy resin latexes.
, according to the invention it is preferred to, the silane coupling agent be one kind in KH550, KH560, KH602, KH792 or Two or more mixing.
, according to the invention it is preferred to, the anti-flash rusting agent is the anti-flash rusting agent of CH07A.
, according to the invention it is preferred to, the anti-settling agent is inorganic gel anti-settling agent.
, according to the invention it is preferred to, the curing agent is water-soluble triethylene tetramine.
According to the present invention, the preparation method of above-mentioned environmentally friendly anticorrosive paint, including step are as follows:
(1)FeOCl powder is distributed in aniline, ultrasonic disperse 10-30min, 1- is stirred under lucifuge, nitrogen environment 7d, filtering obtained solid 60-90 DEG C of drying under nitrogen protection, grinds to obtain FeOCl-An composite powders;
(2)FeOCl-An composite powders are dispersed in water, ultrasonic disperse 10-30min, then stirs 1-4h;
(3)By step(2)Gained system is slowly added dropwise under agitation(0.1-1)The ammonium persulfate solution of mol/L, Ran Houji Continuous stirring 4-12h, is obtained by filtration solid, is dried at 60-90 DEG C, grind, obtain polyaniline-modified FeOCl powder;
Ammonium persulfate:The mass ratio of FeOCl-An is 1:(10-20);
(4)By mass percentage, by anti-settling agent, polyaniline-modified FeOCl powder, aluminium triphosphate, trbasic zinc phosphate, iron oxide Red, titanium dioxide, mica powder, Meteorological Act white carbon, silane coupling agent, defoamer, anti-flash rusting agent, sequentially add under stirring Into epoxy resin latex, then ultrasonic disperse 20-60min, stirring 1-4 is fully dispersed when small, obtains component A;
(5)Component A is uniformly mixed with curing agent, curing agent:The mass ratio of epoxy resin latex is(0.5-1):5, i.e., Obtain modified environment-friendly epoxy heavy-duty anticorrosive coating.
Method produced according to the present invention, it is preferred that step(1)The mass ratio of FeOCl powder and aniline is 1:(5-20).
Method produced according to the present invention, it is preferred that step(3)The rate of addition of middle ammonium persulfate solution is 0.2-1 per second Drop.
The principle of the present invention:
FeOCl is a kind of compound with layer structure, has good anti-corrosion effect, and FeOCl has obvious knot Anisotropy on structure, it is easy to make host molecule or group be embedded in its interlayer.Anticorrosion filler is used as by the use of polyaniline-modified FeOCl Had polyaniline and the antisepsis of FeOCl concurrently, polyaniline-modified FeOCl with microcosmic layer structure to corrosive medium with Good barrier effect, polyaniline intercalated along with interlayer can play excellent antiseptic property.Polyaniline-modified FeOCl makees Anticorrosive packing of attaching most importance to has simple production process, and energy consumption is low, and material is easy to get, the advantages of being adapted to mass produce.
The present invention FeOCl can market buy, can be also prepared by the prior art.Reference can be made to:" on lamellar compound The research of FeOCl (FeOCl) structure and physicochemical characteristics ", Chen Zhen, power technology, the 2nd phase, the 17-21 pages. It is " embedding
Enter compound FeOCl (HQ)0. 78Synthesis and performance study ", wear credit east etc., Nanjing Aero-Space University is learned Report, 2005,
The 5th phase of volume 37,643-647.
Compared with prior art, the present invention has the following advantages:
1st, the present invention uses the epoxy resin latex of organic solvent-free to add the polyaniline-modified of asepsis environment-protecting for film forming agent FeOCl powder new packings are prepared for environmentally friendly anticorrosive paint.Stronger protective coating can be formed in steel surface, effectively avoided The use of organic solvent and the rust resisting pigment containing toxicity.
2nd, production cost of the present invention is low, and material is easy to get, asepsis environment-protecting.
3rd, present invention environmental protection, and the preparation process of epoxy heavy-duty anticorrosive coating is relatively easy, and cost is low, is suitable for extensive Industrialized production, application prospect are good.
4th, the corrosion-inhibiting coating physical property that coating application of the present invention obtains is good, has excellent corrosion resistance.
Brief description of the drawings
Fig. 1 is the SEM photograph of gained cured film after the coated processing of anticorrosive paint made from the embodiment of the present invention 1.
Fig. 2 is the dynamic potential polarization curve after the coated processing of anticorrosive paint made from the embodiment of the present invention 3.
Embodiment:
With reference to specific embodiment and with reference to attached drawing, the present invention will be further described, but not limited to this.
Raw materials used in embodiment is convenient source, commercial products.
Wherein:Epoxy resin latex(MU-601)Shanghai Forlon Chemical Science and Technology Development Co., Ltd. is on sale, and curing agent is water-soluble Property triethylene tetramine Shanghai Forlon Chemical Science and Technology Development Co., Ltd. is on sale, anti-flash rusting agent(CH07A)Foshan mayor's sky trade has Limit company is on sale.FeOCl is referred to:" inlaid scheme FeOCl (HQ)0. 78Synthesis and performance study ", wear credit east etc., south Capital aerospace college journal, the 5th phase of volume 2005,37,643-647, is prepared.
Embodiment 1
A kind of modified environment-friendly anticorrosive paint, the raw material which includes following mass percent form:
Epoxy resin latex MU-601 100g, curing agent water solubility triethylene tetramine 20g, polyaniline-modified FeOCl 15g, aluminium triphosphate 5g, trbasic zinc phosphate 2g, iron oxide red 3g, titanium dioxide 1g, mica powder 2g, Meteorological Act white carbon 0.5g, silane Coupling agent KH-560 2g, defoamer 1g, inorganic gel anti-settling agent 2g, anti-flash rusting agent CH07A 1g.
Preparation process is as follows:
(1)3gFeOCl powder is distributed in 6g aniline, ultrasonic 30min, 3d is stirred under lucifuge, nitrogen environment, taken out Filter, obtained solid 90 DEG C of drying under nitrogen protection, grinds to obtain FeOCl-An composite powders;
(2)3gFeOCl-An composite powders are dispersed in water, ultrasonic 15min, then stirs 2h;
(3)By step(2)The ammonium persulfate solution that 13ml concentration is 0.1mol/L is slowly added dropwise in gained system under agitation (0.5 drop per second), stirring 12h is then proceeded to, filtering, 90 DEG C of drying, grind to obtain polyaniline-modified FeOCl powder.
(4)2g anti-settling agents are added in 100g epoxy resin latexes successively after stirring 1h and be further continued for sequentially adding 15g polyphenyl Amine MODIFIED Fe OCl powder, 5g aluminium triphosphates, 2g trbasic zinc phosphates, 3g iron oxide reds, 1g titanium dioxides, 2g mica powders, 0.5g Meteorological Acts White carbon, 2g silane coupling agent KH-560,1g defoamer, the anti-flash rusting agent of 1g, then ultrasonic disperse 30min, stirring 4h fully divide Dissipate, obtain component A;
(5)By step(4)Gained component A and 20g curing agent water solubility triethylene tetramines(B component)It is quick to be uniformly mixed, Up to modified environment-friendly anticorrosive paint.
Fig. 1 is the SEM photograph of protecting film of the present embodiment after coating processing, and as shown in Figure 1, coating surface is smooth, Film forming is fine and close.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 1.432e-008 A/(cm)2
Protecting film main performance is as shown in table 1:
Table 1
Test event Testing result
Thickness 180µm
Hardness 4H
Adhesive force 2 grades(Scratch)
Impact resistance 50cm
Water resistance 85d, it is unchanged, it is not blistering, do not fall off
Resistance to neutral salt spray 1300h, unchanged, wrinkle resistant, no rusty stain
The sodium chloride solution of resistance to 3.5wt% 20d, unchanged, wrinkle resistant, no cracking
Acid resistance(5% sulfuric acid solution) 10d, unchanged, no dusting, dissolution phenomenon
Alkali resistance(5% sodium hydroxide solution) 13d, unchanged, no dusting, dissolution phenomenon
Comparative example 1
As described in Example 1, except that being added without polyaniline-modified FeOCl powder.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 9.075e-006A/(cm)2
Protecting film main performance is as shown in table 2:
Table 2
Test event Testing result
Thickness 160µm
Hardness 4H
Adhesive force 2 grades(Scratch)
Impact resistance 50cm
Water resistance 70d, it is unchanged, it is not blistering, do not fall off
Resistance to neutral salt spray 1000h, unchanged, wrinkle resistant, no rusty stain
The sodium chloride solution of resistance to 3.5wt% 16d, unchanged, wrinkle resistant, no cracking
Acid resistance(5% sulfuric acid solution) 9d, unchanged, no dusting, dissolution phenomenon
Alkali resistance(5% sodium hydroxide solution) 10d, unchanged, no dusting, dissolution phenomenon
Embodiment 2
Environmental protection anticorrosive paint as described in Example 1, except that preparation process(4)Middle addition 5g polyanilines change Property FeOCl powder.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 8.867e-007A/(cm)2
Protecting film main performance is as shown in table 3:
Table 3
Test event Testing result
Thickness 160µm
Hardness 4H
Adhesive force 2 grades(Scratch)
Impact resistance 50cm
Water resistance It is 90 days, unchanged, it is not blistering, do not fall off
Resistance to neutral salt spray 1200h, unchanged, wrinkle resistant, no rusty stain
The sodium chloride solution of resistance to 3.5wt% It is 21 days, unchanged, wrinkle resistant, no cracking
Acid resistance(5% sulfuric acid solution) 10d, unchanged, no dusting, dissolution phenomenon
Alkali resistance(5% sodium hydroxide solution) 15d, unchanged, no dusting, dissolution phenomenon
Embodiment 3
Environmental protection anticorrosive paint as described in Example 1, except that preparation process(4)Middle addition 10g polyanilines change Property FeOCl powder.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 2.002e-008A/(cm)2, 170 μm of thickness is attached Put forth effort(Scratch)2 grades, pencil hardness 4H.
Fig. 2 is dynamic potential polarization curve of the present embodiment after coating processing, has Fig. 2 to understand, in 3.5wt% sodium chloride Corrosion in solution, corrosion current 2.002e-008A/(cm)2, corrosion potential -0.0976V.
Embodiment 4
Environmental protection anticorrosive paint as described in Example 1, except that preparation process(4)Middle addition 0.1g KH550.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 1.432e-008A/(cm)2, 180 μm of thickness is attached Put forth effort(Scratch)2 grades, pencil hardness 4H.
Embodiment 5
Environmental protection anticorrosive paint as described in Example 1, except that preparation process(5)Middle addition 10g curing agent.
Corrosion current of the protecting film in 3.5wt% sodium chloride solutions is 8.867e-007A/(cm)2, 160 μm of thickness is attached Put forth effort(Scratch)2 grades, pencil hardness 4H.

Claims (10)

1. a kind of modified environment-friendly anticorrosive paint, it is characterised in that the anticorrosive paint includes the raw material group of following mass percent Into:
Epoxy resin latex 30%-60%, curing agent 5-10%, polyaniline-modified FeOCl 5-15%, aluminium triphosphate 5- 10%, trbasic zinc phosphate 2-5%, iron oxide red 2-8%, titanium dioxide 1-5%, mica powder 1-5%, Meteorological Act white carbon 0.1%-2%, Silane coupling agent 0.1%-2%, defoamer 0.1%-3%, anti-settling agent 1%-3%, anti-flash rusting agent 0.1%-5%.
2. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that this is described polyaniline-modified FeOCl is made as follows:
(i) FeOCl is dried, grind after be distributed in aniline, ultrasonic disperse 10-30min, is stirred under lucifuge, nitrogen environment 1-7d, filtering obtained solid 60-90 DEG C of drying under nitrogen protection, grinds to obtain FeOCl-An composite powders;
(ii) FeOCl-An composite powders are dispersed in water, ultrasonic disperse 10-30min, then stirs 1-4h;
(iii) system obtained by step (ii) is slowly added dropwise to the ammonium persulfate solution of (0.1-1) mol/L, Ran Houji under agitation Continuous stirring 4-12h, ammonium persulfate:The mass ratio of FeOCl-An is 1:(10-20);Solid is obtained by filtration, is dried at 60-90 DEG C, Grinding, up to polyaniline-modified FeOCl.
3. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that the epoxy resin latex is MU-601 epoxy resin latexes.
4. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that the silane coupling agent is One or both of KH550, KH560, KH602, KH792 are mixed above.
5. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that the anti-flash rusting agent is CH07A Anti- flash rusting agent.
6. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that the anti-settling agent is inorganic gel Anti-settling agent.
7. modified environment-friendly anticorrosive paint according to claim 1, it is characterised in that the curing agent is water solubility three Ethene tetramine.
8. a kind of preparation method of claim 1-7 any one of them environmental protection anticorrosive paint, including step are as follows:
(1) FeOCl powder is distributed in aniline, ultrasonic disperse 10-30min, stirs 1-7d, mistake under lucifuge, nitrogen environment Obtained solid 60-90 DEG C of drying under nitrogen protection is filtered, grinds to obtain FeOCl-An composite powders;
(2) FeOCl-An composite powders are dispersed in water, ultrasonic disperse 10-30min, then stirs 1-4h;
(3) system obtained by step (2) is slowly added dropwise to the ammonium persulfate solution of (0.1-1) mol/L under agitation, then proceedes to stir 4-12h is mixed, solid is obtained by filtration, is dried at 60-90 DEG C, grinds, obtains polyaniline-modified FeOCl powder;
Ammonium persulfate:The mass ratio of FeOCl-An is 1:(10-20);
(4) by mass percentage, by anti-settling agent, polyaniline-modified FeOCl powder, aluminium triphosphate, trbasic zinc phosphate, iron oxide red, Titanium dioxide, mica powder, Meteorological Act white carbon, silane coupling agent, defoamer, anti-flash rusting agent, are added sequentially under stirring In epoxy resin latex, then ultrasonic disperse 20-60min, stirring 1-4 is fully dispersed when small, obtains component A;
(5) component A is uniformly mixed with curing agent, curing agent:The mass ratio of epoxy resin latex is (0.5-1):5, change to obtain the final product Property environment-friendly epoxy anticorrosive paint.
9. the preparation method of environmental protection anticorrosive paint according to claim 8, it is characterised in that step (1) FeOCl powder Mass ratio with aniline is 1:(5-20).
10. the preparation method of environmental protection anticorrosive paint according to claim 8, it is characterised in that persulfuric acid in step (3) The rate of addition of ammonium salt solution is 0.2-1 drops per second.
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