CN108676457A - Underwater concrete tough epoxy anticorrosive paint and preparation method thereof - Google Patents
Underwater concrete tough epoxy anticorrosive paint and preparation method thereof Download PDFInfo
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- CN108676457A CN108676457A CN201810388804.1A CN201810388804A CN108676457A CN 108676457 A CN108676457 A CN 108676457A CN 201810388804 A CN201810388804 A CN 201810388804A CN 108676457 A CN108676457 A CN 108676457A
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- 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
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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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Abstract
A kind of underwater concrete tough epoxy anticorrosive paint of present invention proposition and preparation method thereof, including two kinds of components of A, B, component A score by weight includes epoxy resin E 51, epoxy resin E 44, flexible polyurethane epoxy resin 102C 4L, propylene oxide benzylic ether, trimethylolpropane glycidol ether, organobentonite, polyamide wax, wollastonite in powder etc., B component are 2303 underwater special curing agents of H.It under the synergistic effect of Multiple components, is easily constructed under water by the prepared anticorrosive paint of this method, film has strong with concrete bonding power after painting under water solidification, and rotproofness is good.Use modified flexible polyurethane resin; the flexible reactive diluent of solidfied material can be enhanced, the painting film toughness after solidification is fine, solves more crisp after ordinary epoxy resin cures; the small defect of impact resistance is suitable for the anti-corrosion protection of the concrete structures such as underwater foundation, concrete dam facing, splash zone.
Description
Technical field
The invention belongs to underwater coating compound field more particularly to a kind of underwater concrete tough epoxy anticorrosive paint and its preparations
Method.
Background technology
Underwater concrete structure in water or briny environment is washed away by flow even silt carrying flow, seawater for a long time
Middle Chloride Attack, along with the reasons such as concrete itself carbonization cause concrete surface honeycomb, pitted skin, crack, dew muscle occur
Or even the defects of hole, these defects can form prodigious harm to the structure of concrete.The method for handling these defects at present
Mainly have to reduce water level or build after dry ground environment is created in cofferdam and be constructed using conventional material；In addition also have on the market at present
Some underwater brushable paints directly carry out repairing and application to decaying concrete in water, easy for construction, are risen to concrete structure
Good protective effect arriving, but these underwater repair paint binders are mainly epoxy resin, solidfied material brittleness is big after solidification,
Resistance to cracking energy, shock resistance are relatively low, and the concrete after constructing in this way is easy to peel off in current scour or external impacts
And lose the protective effect to concrete.
Such as application No. is 2009100171540 patents of invention to disclose a kind of underwater solventless epoxy anti-corrosive coating and its system
1085 curing agent and 810 curing agent are used in mixed way by Preparation Method, the anticorrosive paint using epoxy resin E-51 and E-44 as base fluid,
The underwater anticorrosive paint of strong adhesive force, high mechanical strength.As a result of low temperature curing agent so that the anticorrosive paint is suitable for low
It is used under warm water, it is good to be applied to underwater steel anti-corrosion effect.But steel are impermeable materials, and concrete is located at water for a long time
Under, can moisture constantly be permeated to the adhesive surface of coating, Common curing agents are difficult to good play a role.Organobentonite is inorganic
Thixotropic agent is affected by temperature greatly, and temperature rise can be such that hydrogen bond action weakens, to influence rheological characteristic.The anticorrosive paint exists simultaneously
Resistance to cracking can be insufficient with shock resistance under higher low temperature, and in current scour or external impacts, coating is easy to peel off
And lose the protective effect to concrete.
Invention content
The present invention is big for existing underwater concrete anticorrosive paint brittleness, impact resistance is relatively low, can not apply at normal temperatures
The technical issues of work, proposition is a kind of can directly to carry out application, and the coating after solidification on the concrete corroded in water
Flexibility is big, impact resistance, the good underwater concrete tough epoxy anticorrosive paint of bonding force.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of underwater concrete tough epoxy anticorrosive paint, including two kinds of components of A, B, component A weight are the 5~6 of B component
Times, component A score by weight includes 20-25% epoxy resin E-51,6-10% epoxy resin E-44,13-18% flexibilities
Polyurethane-epoxy resin 102C-4L, 2-4% propylene oxide benzylic ether, 4-6% trimethylolpropanes glycidol ether, 0.5-
1.5% organobentonite, 1-2% polyamide waxes, 5-8% talcum powder, 6-8% sericites in powder, 4-7% blanc fixes, 5-7%
Wollastonite in powder, 1-2% titanium dioxides, 0.5-1% coupling agents, 0.3-0.8% dispersants, 0.3-0.8% antifoaming agent and 0.1-0.2%
Carbon black, B component are the underwater special curing agents of H-2303.
Preferably, the coupling agent is γ-glycidylpropyl trimethoxy silane.
Preferably, the antifoaming agent is moral modest 6500.
Preferably, the antifoaming agent is the modest 904S of moral.
Preferably, the wollastonite in powder selects needle shape wollastonite powder.
The present invention also proposes a kind of preparation method of underwater concrete tough epoxy anticorrosive paint, includes the following steps：
(1) preparation of component A：According to weight ratio, by 20-25% epoxy resin E-51,6-10% epoxy resin E-44,
13-18% flexible polyurethane epoxy resin 102C-4L, 2-4% propylene oxide benzylic ether, 4-6% trimethylolpropanes shrink sweet
Oily ether sequentially adds in stirred tank, is heated to 50 DEG C -60 DEG C and stirs evenly；Add 0.5-1.5% organobentonites, 1-2%
After polyamide wax powder is dispersed with stirring uniformly, 5-8% talcum powder, 6-8% sericites in powder, 4-7% blanc fixes, 5-7% is added
Wollastonite in powder, 1-2% titanium dioxides, 0.5-1% coupling agents carry out high-speed stirred dispersion, then bonus point powder 0.3-0.8%, defoaming
Agent 0.3-0.8% high speed dispersions are uniform, and 0.1-0.2% carbon blacks is added to mix colours, and finally grind, pack.
(2) preparation of B component：B component is that the underwater special curing agent single groups of H-2303 are packaged.
(3) before painting under water, A, B component are pressed into 5-6：1 weight ratio mixing, stirs evenly, obtaining can painting under water
The underwater tough epoxy anticorrosive paint of concrete.
Compared with prior art, the advantages and positive effects of the present invention are：
1,102C-4LL flexible-epoxies are added in epoxy resin after curing with underwater curing agent and form epoxy
Resin-Polyurethane Interpenetrating Polymer Networks significantly improves the brittleness of solidfied material, and can improve the adhesive force of glue-line.
2, using active epoxy diluent：Propylene oxide benzylic ether and trimethylolpropane glycidol ether, after solidification
Further improve the toughness of solidfied material.
3, it is mixed in specific proportions as filler, wherein needle using talcum powder, sericite in powder, blanc fixe and wollastonite in powder
Shape wollastonite in powder, it is unique needle-shaped with it, fiber mechanism is enriched, the intensity of the anticorrosive paint is enhanced.
4, the advantages that film has with concrete bonding power strong, good toughness after the solidification of this coating painting under water, and rotproofness is good.
Film after solidification can withstand current scour or the impact of other external force, be splashed suitable for underwater foundation, concrete dam facing, wave
The anti-corrosion protection of the concrete structures such as area.
Specific implementation mode
In order to better understand the present invention, it is illustrated with reference to embodiment.
Embodiment one：
Underwater tough epoxy anticorrosive paint is prepared according to following weight percent：
The preparation of coating：
(1) preparation of component A：22.40% epoxy resin E-51,7.61% epoxy resin E-44,14.90% flexibility is poly-
Urethane epoxy resin 102C-4L, 3.26% propylene oxide benzylic ether, 4.68% trimethylolpropane glycidol ether sequentially add
In stirred tank, it is heated to certain temperature, is stirred uniformly, adds 0.98% organobentonite, 1.63% polyamide wax
After stirring evenly, 0.76% γ-glycidylpropyls trimethoxy silane, 6.74% talcum powder, 6.96% thin,tough silk is added in stirring
Mica powder, 5.17% blanc fixe, 6.53% wollastonite in powder, 1.85% titanium dioxide carry out high-speed stirred dispersion, add 0.54%
The modest 904S of dispersant moral and 0.51% antifoaming agent moral modest 6500 continue to be dispersed with stirring, uniformly the toning of rear plus 0.11% carbon black, finally
Grinding, packaging.
(2) preparation of B component：The underwater special curing agent single groups of B component H-2303 are packaged.
(3) before painting under water, A, B component are pressed 5：1 weight ratio mixing, stirs evenly, and obtaining can painting under water
Underwater tough epoxy anticorrosive paint.
The painting under water of coating, maintenance：
(1) concrete surface is handled：Using power milling tools polishing concrete, thoroughly remove on concrete surface not
Firm mortar, the pollutants such as wedge angle, clast, marine growth, moss, greasy dirt.
(2) coating mixed with aforementioned proportion carries out brushing concrete with hairbrush in water.And it makes flexibility, resist
Impact pellicula.
(3) concrete that painting brushes is put conserves in water, cures.
Film performance is tested：
After 7 days, film is fully cured, and tests adhesive force, flexibility, impact resistance and the resistance to medium of film and concrete
Energy.Test result is as follows：The adhesive force of film and concrete is 3.6MPa, and failure mode is destroyed for concrete, is destroyed strong
It is concrete body tensile strength to spend, and the bonding plane of film and concrete is intact.Flexibility：It is bent 1mm, film flawless.It is resistance to
Impact：95cm, film flawless.Medium-resistance：Sea water resistance 180d is not blistering, do not fall off, coating is intact；Water-fast 180d is not
Blister, do not fall off, film it is intact.
Embodiment two：
Underwater tough epoxy anticorrosive paint is prepared according to following weight percent：
The preparation of coating：
(1) preparation of component A：24.00% epoxy resin E-51,8.14% epoxy resin E-44,15.32% flexibility is poly-
Urethane epoxy resin 102C-4L, 2.79% propylene oxide benzylic ether, 4.93% trimethylolpropane glycidol ether sequentially add
In stirred tank, it is heated to certain temperature, is stirred uniformly, adds 1.29% organobentonite, 1.07% polyamide wax
After stirring evenly, 5.57% talcum powder, 7.27% sericite in powder, 4.5% blanc fixe, 6.96% wollastonite is added in stirring
Powder, 1.93% titanium dioxide, 0.74% γ-glycidylpropyl trimethoxy silanes carry out high-speed stirred dispersion, add 0.51%
The modest 904S of dispersant moral and 0.56% antifoaming agent moral modest 6500 continue to be dispersed with stirring, uniformly the toning of rear plus 0.12% carbon black, finally
Grinding, packaging.
(2) preparation of B component：B component is that the underwater special curing agent single groups of 14.30%H-2303 are packaged.
(3) before painting under water, A, B component are pressed above-mentioned 6：1 weight ratio mixing, stirs evenly, obtain to apply under water
The underwater tough epoxy anticorrosive paint of dress.
The painting under water of coating, maintenance：
(1) concrete surface is handled：It is cleaned, is thoroughly removed loosely grey on concrete surface with high pressure water using power
Slurry, the pollutants such as wedge angle, clast, marine growth, moss, greasy dirt.
(2) coating mixed with aforementioned proportion carries out brushing concrete with hairbrush in water.And it makes flexibility, resist
Impact pellicula.
(3) it applies the concrete brushed to conserve in water, cure.
Film performance is tested：
After 7 days, film is fully cured, and tests adhesive force, flexibility, impact resistance and the resistance to medium of film and concrete
Energy.Test result is as follows：The adhesive force of film and concrete is 3.2MPa, and failure mode is destroyed for concrete, is destroyed strong
It is concrete body tensile strength to spend, and the bonding plane of film and concrete is intact.Flexibility：It is bent 1mm, film flawless.It is resistance to
Impact：100cm, film flawless.Medium-resistance：Sea water resistance 180d is not blistering, do not fall off, film is intact；Water-fast 180d
It is not blistering, do not fall off, film it is intact.
Embodiment three：
Underwater tough epoxy anticorrosive paint is prepared according to following weight percent：
The preparation of coating
(1) preparation of component A：21.55% epoxy resin E-51,9.11% epoxy resin E-44,15.89% flexibility is poly-
Urethane epoxy resin 102C-4L, 2.67% propylene oxide benzylic ether, 4.44% trimethylolpropane glycidol ether sequentially add
In stirred tank, it is heated to certain temperature, is stirred uniformly, adds 1.22% organobentonite, 1.00% polyamide wax
After stirring evenly, 5.44% talcum powder, 6.44% sericite in powder, 6.67% blanc fixe, 5.33% wollastonite is added in stirring
Powder, 1.78% titanium dioxide, 0.67% γ-glycidylpropyl trimethoxy silanes carry out high-speed stirred dispersion, add 0.56%
The modest 904S of dispersant moral and 0.46% antifoaming agent moral modest 6500 continue to be dispersed with stirring, uniformly the toning of rear plus 0.10% carbon black, finally
Grinding, packaging.
(2) preparation of B component：B component is that the underwater special curing agent single groups of 16.67%H-2303 are packaged.
(3) before painting under water, A, B component are pressed above-mentioned 5：1 weight ratio mixing, stirs evenly, obtain to apply under water
The underwater tough epoxy anticorrosive paint of dress.
The painting under water of coating, maintenance：
(1) concrete surface is handled：It is cleaned, is thoroughly removed loosely grey on concrete surface with high pressure water using power
Slurry, the pollutants such as wedge angle, clast, marine growth, moss, greasy dirt.
(2) coating mixed with aforementioned proportion carries out brushing concrete with hairbrush in water.And it makes flexibility, resist
Impact pellicula.
(3) it applies the concrete brushed to conserve in water, cure.
Film performance is tested：
After 7 days, film is fully cured, and tests adhesive force, flexibility, impact resistance and the resistance to medium of film and concrete
Energy.Test result is as follows：The adhesive force of film and concrete is 3.45MPa, and failure mode is destroyed for concrete, is destroyed strong
It is concrete body tensile strength to spend, and the bonding plane of film and concrete is intact.Flexibility：It is bent 1mm, film flawless.It is resistance to
Impact：100cm, film flawless.Medium-resistance：Sea water resistance 180d is not blistering, do not fall off, coating is intact；Water-fast 180d
It is not blistering, do not fall off, film it is intact.
Film brittleness is big after solving underwater epoxy paint solidification in above-described embodiment, and it is flexible to realize that the film after solidification has
Property main path be use 102C-4LL flexible-epoxy modified epoxies.102C-4LL flexible-epoxies are modified poly-
Urethane resin, be added in epoxy resin with underwater curing agent cure after form epoxy resin-polyurethane interpenetrating polymer net
Network significantly improves the brittleness of solidfied material, and can improve the adhesive force of glue-line.And there is good wet and heat ageing resistant, match
Using other conventional toughener need not be reused after the product such as in side：Polysulfide rubber, nitrile rubber etc..With polysulfide rubber toughening
Odorlessness is compared in agent (irritation temperature is larger) and nitrile rubber (price is high) compares, and price is low, and hybrid technique is simple.
Same incorporation, polysulfide rubber and nitrile rubber cannot reach the flexibility and adhesive force of such coating.In addition after realizing solidification
Film have flexible approach also have use active epoxy diluent：Propylene oxide benzylic ether and trimethylolpropane shrink
Glycerin ether also further improves the toughness of solidfied material after solidification.
Epoxy resin of the present invention is bisphenol A epoxide resin, has selected E-51 and two models of E-44 compound, epoxy resin
E-51 viscosity is low, good to the wetting capacity of base material, and E-44 epoxy resin is good to the bonding force of ground, and the two compound use can fill
Divide the adhesive force for improving glue-line and base material.
The diluent selected in the present invention is the trihydroxy methyl third of the propylene oxide benzylic ether and trifunctional of two functional groups
The active epoxy diluent of alkane glycidol ether, the two are used cooperatively.Viscosity is big at normal temperatures for bisphenol A epoxide resin, epoxy third
Alkane benzylic ether and propylene oxide benzylic ether viscosity are low, can be easily dispersed in epoxy resin, dilute epoxy resin, reduce it
Viscosity, and have the characteristics that small toxicity, volatility very little, almost odorlessness.It is particularly suitable for the ring of ventilation condition difference under water
Border use complies fully with environmental requirement.Propylene oxide benzylic ether epoxy group containing there are two, can participate in curing reaction, and can improve solid
The brittleness of compound, trimethylolpropane glycidol ether have 3 epoxy groups to participate in curing reaction, and crosslink density is big, solidfied material
Intensity is high.
Select micronized talc powder, sericite in powder, blanc fixe, activated wollastonite powder as filler in the present invention.Talcum
Powder can assign the excellent brush of coating, levelability, smooth coating degree and gloss retention, have excellent suspension in coating,
Other fillers in system are contributed to keep suspended state.Sericite in powder has unique laminated structure, can enhance the machine of film
Tool power and impermeability can prevent film from cracking, and improve salt fog resistance and durability.Blanc fixe is granular or spherical junctions
Structure, oil absorption is low, and density is big, with good filling capacity, when contributing to gloss and coating application can be reduced in water
Floating.Wollastonite in powder has needle-shaped, fibrous crystal form and higher whiteness, so that coating is had good gloss, can improve
The toughness of coating and anti-scrub ability.Needle shape wollastonite powder, it is unique needle-shaped with it, fiber mechanism is enriched, is filled out as functionality
Material, enhances the intensity of the anticorrosive paint.Chemically modified needle shape wollastonite powder, is it in terms of filler and reinforcing agent
His filler is incomparable.Modified high length-diameter ratio (10：1~20：1) needle shape wollastonite powder, the impact for being remarkably improved coating are strong
Degree and structural stability, the dispersion effect of fibrous web-like in coating system, coating can effectively block the erosion of outside moisture,
Coating salt tolerant outlet capacity can be improved one times or more.
Select rutile type titanium white, carbon black mixture as pigment in the present invention, titanium dioxide, index of refraction is high, matches with carbon black
Grey after conjunction plays covering to concrete surface.
Coupling agent in the present invention selects γ-glycidylpropyl trimethoxy silane (KH-560), KH-560 couplings
Agent can apparent cohesive force between reinforcement filler and resin, coating and base material, effectively increase the permeability resistance of coating and water-fast
Property and bonding force.
Dispersant in the present invention is the modest Disponer 904S of moral, it has special interfacial activity, the dispersion to pigment
And wetting effect spy is excellent, and it is hard to can effectively prevent color separation problem and pigmentation when titanium dioxide and other pigment share in formula
Knot problem makes coating have good storage stability, and in addition this dispersant can regard flow improver additive, improve film coated surface
Flatness promotes the scratch resistance damage property and smoothness of film.
The antifoaming agent that the present invention selects is the modest Defom6500 of moral, which is modified polyorganosiloxane antifoaming agent, to coating
The bubble generated in manufacture, stirring, work progress can inhibit and eliminate well.
The anti-settling thixotropic agent agent that the present invention uses is organobentonite and polyamide wax.Organobentonite is in liquid resin
Gel can be formed, there is good thickening property, thixotropy, suspension stability, but organobentonite is inorganic thixotropic agent, by temperature
It influences greatly, temperature rise can be such that hydrogen bond action weakens, to influence rheological characteristic.A kind of thixotropy additive of polyamide wax powder,
It is middle in coating to form powerful network structure, there is excellent thixotropic property, but its soak time is longer needs 2h, both knots
The problem of closing using effectively collaboration, overcoming temperature and soak time activates 30min, it will be able to make under the conditions of 50~60 degree
Coating has preferable anti-settling ability, with excellent resist sagging ability when brushing under water.
Steel are impermeable materials, will not permeate moisture to the adhesive surface of coating, and concrete structure long period of soaking is in water
In, Surface absorption large quantity of moisture, common underwater coating compound is difficult to obtain in continuous infiltration and loose surface cure good
Adhesive force.The present invention realizes that underwater directly application is to select underwater special curing agent H-2303, H-2303 underwater epoxy curing agent
It is the amine curing agent being modified according to the principle of MOLECULE DESIGN, the active group for participating in curing reaction has well under water
Reactivity, do not influenced by water, there is excellent infiltration bonding and curing performance, solve the going or staying with water surface moisture
The problem of problem and loose concrete ground constantly seep water.Modified alicyclic ring amine hardener, low viscosity, low smell, low form and aspect are special
Different Molecular Design provides the existing hydrophobicity of the higher surface-active of curing agent, and has hydrophily, can absorb concrete
The moisture being constantly permeated, construction reliability is high under complicated low temperature band water environment.
Underwater concrete tough epoxy anticorrosive paint described in above-described embodiment, using special component and proportioning, in use
Technique is stated to be formulated.Under the synergistic effect of Multiple components, prepared anticorrosive paint is easily constructed under water, can be used brushing,
Blade coating, roller coating, spraying method construction, than using traditional cofferdam drainage construction short time limit, at low cost.This coating painting under water is solid
After change film has many advantages, such as strong with concrete bonding power that rotproofness is good, in particular by modified flexible polyurethane resin,
The flexible reactive diluent of solidfied material can be enhanced, underwater dedicated curing agent, the painting film toughness after solidification is fine, solves general
More crisp, the small defect of impact resistance after logical epoxy resin cure.Film after solidification can withstand current scour or other external force
Impact, therefore this coating is suitable for the anti-corrosion protection of the concrete structures such as underwater foundation, concrete dam facing, splash zone.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but it is every without departing from technical solution of the present invention content, according to the technical essence of the invention
To any simple modification, equivalent variations and remodeling made by above example, the protection domain of technical solution of the present invention is still fallen within.
Claims (6)
1. a kind of underwater concrete tough epoxy anticorrosive paint, it is characterised in that：Including two kinds of components of A, B, component A weight is B
5 ~ 6 times of component, component A score by weight include 20-25% epoxy resin E-51,6-10% epoxy resin E-44,13-
18% flexible polyurethane epoxy resin 102C-4L, 2-4% propylene oxide benzylic ether, 4-6% trimethylolpropanes glycidol ether,
0.5-1.5% organobentonites, 1-2% polyamide waxes, 5-8% talcum powder, 6-8% sericites in powder, 4-7% blanc fixes, 5-7% silicon
Limestone flour, 1-2% titanium dioxides, 0.5-1% coupling agents, 0.3-0.8% dispersants, 0.3-0.8% antifoaming agent and 0.1-0.2% carbon blacks, B
Group is divided into the underwater special curing agents of H-2303.
2. underwater concrete tough epoxy anticorrosive paint according to claim 1, it is characterised in that：The coupling agent is
γ-glycidylpropyl trimethoxy silane.
3. underwater concrete tough epoxy anticorrosive paint according to claim 1, it is characterised in that：The antifoaming agent is moral
Modest 6500.
4. underwater concrete tough epoxy anticorrosive paint according to claim 3, it is characterised in that：The antifoaming agent is moral
Modest 904S.
5. underwater concrete tough epoxy anticorrosive paint according to claim 1, it is characterised in that：The wollastonite in powder choosing
Use needle shape wollastonite powder.
6. a kind of preparation method of underwater concrete tough epoxy anticorrosive paint, which is characterized in that include the following steps：
（1）The preparation of component A：It is according to weight ratio, 20-25% epoxy resin E-51,6-10% epoxy resin E-44,13-18% is soft
Property polyurethane-epoxy resin 102C-4L, 2-4% propylene oxide benzylic ether, 4-6% trimethylolpropane glycidol ethers sequentially add
In stirred tank, it is heated to 50 DEG C -60 DEG C and stirs evenly；Add 0.5-1.5% organobentonites, the stirring of 1-2% polyamide wax powders
After being uniformly dispersed, 5-8% talcum powder, 6-8% sericites in powder, 4-7% blanc fixes, 5-7% wollastonites in powder, 1-2% titanium whites is added
Powder, 0.5-1% coupling agents, progress high-speed stirred dispersion, then bonus point powder 0.3-0.8%, antifoaming agent 0.3-0.8% high speed dispersions are equal
It is even, add 0.1-0.2% carbon blacks to mix colours, finally grinds, packs；
（2）The preparation of B component：B component is that the underwater special curing agent single groups of H-2303 are packaged；
（3）Before painting under water, A, B component are pressed into 5-6：1 weight ratio mixing, stirs evenly, obtaining can painting under water coagulation
The underwater tough epoxy anticorrosive paint of soil.
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| CN111794548A (en) * | 2020-06-30 | 2020-10-20 | 中国科学院海洋研究所 | Reinforced concrete crack-following coating system and anti-corrosion application thereof |
| CN112480784A (en) * | 2020-12-07 | 2021-03-12 | 山东唯一晟源新材料科技有限公司 | Special anti-corrosion paint for offshore oil production platform and preparation method thereof |
| CN114479620A (en) * | 2022-03-07 | 2022-05-13 | 广东腐蚀科学与技术创新研究院 | Antifouling and anticorrosive paint capable of being coated underwater and preparation method thereof |
| CN114773952A (en) * | 2022-04-26 | 2022-07-22 | 石家庄市油漆厂 | Concrete protective coating and preparation method thereof |
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| CN114773952B (en) * | 2022-04-26 | 2024-02-20 | 石家庄市油漆厂 | Concrete protective coating and preparation method thereof |
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