CN110408251A - A kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system - Google Patents
A kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system Download PDFInfo
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- CN110408251A CN110408251A CN201910843670.2A CN201910843670A CN110408251A CN 110408251 A CN110408251 A CN 110408251A CN 201910843670 A CN201910843670 A CN 201910843670A CN 110408251 A CN110408251 A CN 110408251A
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- C—CHEMISTRY; METALLURGY
- 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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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- C—CHEMISTRY; METALLURGY
- 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
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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Abstract
The invention discloses a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat systems, its surface for being coated on steel construction, the railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system include the primer coating set gradually on the outer surface of steel construction, the intermediate lacquer coat of epoxy micaceous iron thickness slurry and the fluorocarbon modified topcoat of graphene；The primer coating is the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol or epoxy alkene-yellow zinc chromate primer paint coating.The invention has the advantages that coating system design anti-corrosion life can achieve 30-50.
Description
Technical field
The present invention relates to coating system improvement, especially a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat
System.
Background technique
The coating system of " priming paint+intermediate coat+finishing coat " is the most frequently used long-acting anticorrosion coat system of steel construction
Design method.Famous steel construction anticorrosion coat both at home and abroad, such as Steel Box Girder of Hangzhou Bay Sea-Crossing Bridge structure, Japanese alum straits
Steel Bridge Structure, Olympic Games Bird's nest steel structure etc. are all made of similar design method.And in ISO 12944 " colored paint and varnish-steel
Structure coating protects system ", the national and foreign standards such as TB/T 1527 " railway steel bridge protects coating and coating supply of material technical conditions "
In, there is more specific coated bodies design, typical matching system has " epoxy zinc rich primer+epoxy intermediate paint+the third
Olefin(e) acid finishing coat ", " zinc-rich coating+epoxy intermediate paint+acrylic polyurethane finish paint ", " epoxy zinc rich primer+epoxy intermediate paint
+ fluorine carbon finishing paint ", " zinc-rich coating+epoxy intermediate paint+fluorine carbon finishing paint " etc., projected lives of these coating systems according to
The standards such as ISO 12944 and TB/T 1527, the only projected life of 15-25.The projected life of such design is unable to reach
The main reason for 30-50, is:
1) although the priming paint of these coating systems uses excellent electrochemical protection priming paint --- the zinc-rich bottom of etch resistant properties
Paint, but the main rust resisting pigment " zinc powder " that these zinc rich primers use is spherical zinc powder, and being doomed PVC, (pigment volume concentration is dense
Degree) it is excessively high, primer coating structure is in porosity, and porosity is big, and shielding is poor, causes laterally to be copolymerized and destroy, to affect painting
The electrochemical protection performance of layer；It shows as 80 microns of thick zinc rich primers, and the resistance to neutral salt spray service life is about 1000h or so.
2) the normal temperature cure FEVE fluorine carbon finishing paint used belongs to greatly with chlorotrifluoroethylene-vinylacetate or trifluoro chlorine
Ethylene-alkane alkene ether is the fluorocarbon coating of polymer, although its performance is better than the antiseptic property of acroleic acid polyurethane coating, is protected
Its QUVB value is about in 3000h when light rate 80%, even the fluorocarbon coating of tetrafluoro system, QUVB value also exists when light-protection rate 80%
Within 5000h, there is also larger gaps for the performance of modified fluorocarbon resin finishing coat with the graphene using LUMI FLON resin.
Summary of the invention
The purpose of the present invention is to solve the above problems, devise a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable weight
Corrosion-inhibiting coating system.
Realize above-mentioned purpose the technical scheme is that a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat
System, is coated on the surface of steel construction, and the railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system is included in steel
Primer coating, the intermediate lacquer coat of epoxy micaceous iron thickness slurry and the fluorocarbon modified finishing coat of graphene set gradually on the outer surface of structure
Coating；The primer coating is the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol or epoxy alkene-yellow zinc chromate primer paint coating；
It is fluorocarbon modified that the molten inorganic alkene-yellow zinc chromate primer paint coating of the Palta type alcohol, epoxy micaceous iron thickness starch intermediate lacquer coat, graphene
The sum of thickness of dry film of topcoat is 140 μm -280 μm；
Epoxy alkene-yellow zinc chromate primer paint the coating, epoxy micaceous iron thickness starch intermediate lacquer coat, the fluorocarbon modified topcoat of graphene
The sum of thickness of dry film is 170 μm -310 μm.
Preferably, the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol is that at least two layers of flake zinc bisque is taken in parallel
It connects, the conductting layer structure of folded array, filling is for conduction between the adjacent flake zinc bisque in the conductting layer structure
Graphene.
Epoxy alkene-yellow zinc chromate primer paint the coating is the conductting layer of multilayer flakey layer superposition, the phase in the conductting layer structure
Filling is for conductive graphene between adjacent flake zinc bisque.
Preferably, the thickness of dry film of the epoxy alkene-yellow zinc chromate primer paint coating is 60 μm -100 μm.
Preferably, the thickness of dry film that the epoxy micaceous iron thickness starches intermediate lacquer coat is 70 μm -120 μm.
Preferably, it is that at least two layers of flakey micaceous iron oxide layer is taken in parallel that the epoxy micaceous iron thickness, which starches intermediate lacquer coat,
It connects, the shielding layer structure of interlaced formation.
Preferably, the thickness of dry film of the fluorocarbon modified topcoat of graphene is 40 μm -90 μm.
Preferably, the fluorocarbon modified topcoat of graphene is aging-resistant layer structure.
A kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat body made using technical solution of the present invention
System, coating system design anti-corrosion life can achieve 30-50, specifically have the beneficial effect that:
The first, using the molten inorganic alkene-yellow zinc chromate primer paint of Palta type alcohol as primer coating, which compounds stone with Palta type zinc powder
Black alkene does pigment, and the electrochemical protection performance of coating is more preferable, while the sclay texture can play shielding action；
The second, shielding action is arrived as inter coat using epoxy micaceous iron intermediate coat, while improves the toughness of coating；
Third, using the fluorocarbon modified finishing coat of graphene as finishing coat, effectively extend the ageing-resistant performance of coating.
Detailed description of the invention
Fig. 1 is a kind of railway steel bridge alkene of the present invention-zinc-base fluorine carbon super-durable anticorrosion coat system implementation example one
Structural schematic diagram；
Fig. 2 is the structural schematic diagram of the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol described in the embodiment of the present invention one；
Fig. 3 is a kind of railway steel bridge alkene of the present invention-zinc-base fluorine carbon super-durable anticorrosion coat system implementation example two
Structural schematic diagram；
Fig. 4 is the alkene of epoxy described in the embodiment of the present invention two-yellow zinc chromate primer paint coating structural schematic diagram；
Fig. 5 is a kind of railway steel bridge alkene of the present invention-zinc-base fluorine carbon super-durable anticorrosion coat system in rail iron
The practical application figure of bridge；
1, steel substrate
2, the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol
3, epoxy micaceous iron thickness starches intermediate lacquer coat
4, the fluorocarbon modified topcoat of graphene
5, epoxy alkene-yellow zinc chromate primer paint coating
201, graphene layer
202, flake zinc bisque
203, vapor phase corrosion inhibitor oxidant layer
204, alcohol-sol-resin filling part
501, graphene layer
502, flake zinc bisque
403, vapor phase corrosion inhibitor oxidant layer
504, epoxy resin filling part
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
A kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system, is coated on the surface of steel construction, described
Railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system includes that the priming paint set gradually on the outer surface of steel construction applies
Layer, epoxy micaceous iron thickness starch intermediate lacquer coat and the fluorocarbon modified topcoat of graphene；The primer coating is the molten nothing of Palta type alcohol
Machine alkene-yellow zinc chromate primer paint coating or epoxy alkene-yellow zinc chromate primer paint coating.
Embodiment one, as shown in Fig. 1 to Fig. 2 and Fig. 5:
The present invention is specifically described with reference to the accompanying drawing, a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable heavy antisepsis
Coating system, is coated on the surface of steel construction, and steel construction is that surface is steel substrate 1, railway steel bridge alkene-zinc-base fluorine carbon super-durable
Anticorrosion coat system include the molten inorganic alkene-yellow zinc chromate primer paint coating 2 of Palta type alcohol set gradually on the outer surface in steel construction,
Epoxy micaceous iron thickness slurry intermediate lacquer coat 3, the fluorocarbon modified topcoat 4 of graphene, the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol,
Epoxy micaceous iron thickness starches preferably 140 μm -280 μm of the sum of thickness of dry film of intermediate lacquer coat, the fluorocarbon modified topcoat of graphene.
In the technical scheme, primer coating therein is the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol, the primer coating
Preferably 30 μm -70 μm of thickness of dry film.
As shown in Fig. 2, E, F, G, H, I are the corrosion factor of external environment, wherein E is ultraviolet light, F is heat source, G is envelope
Hole, H are surface damage, I is corrosive media, and after blasting treatment, coating Palta type alcohol is molten inorganic on the surface of steel substrate 1
Alkene-yellow zinc chromate primer paint coating 2, the component of the molten inorganic alkene-yellow zinc chromate primer paint coating 2 of the Palta type alcohol include flake zinc powder, graphene, gas phase
Corrosion inhibiter and alcohol-sol-resin, the molten inorganic alkene-yellow zinc chromate primer paint coating 2 of the Palta type alcohol include flake zinc bisque 202, graphene layer
201, vapor phase corrosion inhibitor oxidant layer 203 and alcohol-sol-resin filling part 204, multilayer flakey zinc layers bisque 202 are parallel overlap joint, overlap
The conductting layer structure of arrangement, filling is for conductive graphene between the adjacent flake zinc bisque 202 in conductting layer structure
201, using the molten inorganic alkene-yellow zinc chromate primer paint of Palta type alcohol as primer coating, above-mentioned coating is done with Palta type zinc powder compounding graphene
Pigment, and it is equipped with alcohol-sol-resin, the electrochemical protection performance of the primer coating is more preferable.
The partial size of common spherical zinc powder is at 2-5 μm or so, and the thickness of piece zinc is at 0.1 μm or so, only common ball zinc
1/tens.It is in this way all 60 μm of coating, common ball zinc only has ten several layers of zinc granules, and flake zinc powder can be in the coating
The system for forming parallel overlap joint, folded array, has reached layers up to a hundred, in this way, between parallel overlapped piece zinc being taken with face contact
For the point contact between ball zinc, coating has better conduction, while having the addition of the graphene of ultra-high conductivity energy, so that piece
Conduction between zinc significantly increases, and increases the electro-chemical protection of zinc powder in coating, improves the utilization rate of zinc powder, simultaneously
The sclay texture can play shielding action, and parallel overlap joint, interlaced characteristic greatly reduce water, ion in film
In diffusion, and coating can be divided into zonule one by one, reduce the tendency of coating cracking, improve coating
Toughness.
In the molten inorganic alkene-yellow zinc chromate primer paint of Palta type alcohol, comprehensive advantage shows as 70 microns of resistance to neutral salt spray of the primer coating
Test reaches 10000h, is 10 times of common epoxy zinc-enriched paint or more.
In the technical scheme, intermediate lacquer coat therein is that epoxy micaceous iron thickness starches intermediate lacquer coat, the inter coat
Preferably 70 μm -120 μm of thickness of dry film, preferred intermediate coat is the epoxy micaceous iron intermediate coat of the mica-iron oxide pigment containing flakey,
The more preferably 881-Z01 epoxy micaceous iron intermediate coat of the mica-iron oxide pigment containing flakey, using in the conduct of epoxy micaceous iron intermediate coat
Between coating, similar with Palta type zinc rich primer, cloud iron pigment is also sheet, the flakey coating structure can play shielding make
With parallel overlap joint, interlaced characteristic greatly reduce the diffusion of water, ion in film, while improving coating
Toughness.
In the technical scheme, topcoat therein is the fluorocarbon modified topcoat of graphene, which does
Preferably 40 μm -90 μm of film thickness, using the fluorocarbon modified finishing coat of graphene as finishing coat, the coating most outstanding properties are the super of it
Weatherability.Ultraviolet light can be irradiated the light induced electron that coating pigments and fillers generate and shifted in time, prevent light by the electric conductivity of graphene
Destruction of the raw electronics to resin macromolecular chain, effectively extends the ageing-resistant performance of coating, 70 μ of the fluorocarbon modified finishing coat of graphene
M coating QUVB value reaches 6000-6800h or more, and light-protection rate is much higher than existing fluorine carbon finishing paint 90% or more.
As shown in Figure 1, A, B, C, D are respectively the corrosion factor in external environment, wherein A is water area, and B is chloride ion
Region, C are oxygen region, and D is resistance to UV sunlight, and the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol as priming paint has direct
Protect the effect of steel substrate antirust；Epoxy micaceous iron thickness as intermediate coat starch intermediate lacquer coat have form a connecting link, high shielding
Effect；The fluorocarbon modified topcoat of graphene as finishing coat has weatherability and corrosion resistance.
Embodiment two, as shown in Figures 3 to 5:
The present invention is specifically described with reference to the accompanying drawing, a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable heavy antisepsis
Coating system, is coated on the surface of steel construction, and steel construction is that surface is steel substrate 1, railway steel bridge alkene-zinc-base fluorine carbon super-durable
Anticorrosion coat system includes the epoxy alkene-yellow zinc chromate primer paint coating 5 set gradually on the outer surface of steel construction, epoxy micaceous iron thickness slurry
The fluorocarbon modified topcoat 4 of intermediate lacquer coat 3, graphene；Epoxy alkene-yellow zinc chromate primer paint coating 5, epoxy micaceous iron thickness slurry intermediate coat apply
Preferably 170 μm -310 μm of the sum of layer 3, thickness of dry film of the fluorocarbon modified topcoat 4 of graphene.
In the technical scheme, preferred 60-100 μm of thickness of dry film of epoxy alkene-yellow zinc chromate primer paint coating, at epoxy alkene-zinc bottom
Qi Zhong, comprehensive advantage show as 70 microns of resistance to neutral salt spray tests of the primer coating and reach 3000h, are common epoxy zinc-enriched paints
3 times or more.
In the technical scheme, as shown in figure 4, the surface of steel substrate 1 is after blasting treatment, epoxy alkene-zinc bottom is coated
Lacquer coat 5, epoxy alkene-yellow zinc chromate primer paint coating 5 component include flake zinc powder, graphene, vapour phase inhibitor and asphalt mixtures modified by epoxy resin
Rouge, the epoxy alkene-yellow zinc chromate primer paint coating 5 include flake zinc bisque 502, graphene layer 501 and vapor phase corrosion inhibitor oxidant layer 503 and
Epoxy resin filling part 504, the conductting layer structure of the parallel overlap joint of multilayer flakey zinc layers bisque 502, folded array, conductting layer knot
Filling is for conductive graphene 501 between adjacent flake zinc bisque 502 in structure, and is equipped with epoxy resin, according to ring
Oxygen alkene-yellow zinc chromate primer paint coating corrosion resistance mechanism, it is intended to using the hydrophobicity and high conductivity of graphene, increase zinc powder in coating
Electro-chemical protection improves the utilization rate of zinc powder, while the sclay texture can play shielding action, take in parallel
It connects, interlaced characteristic greatly reduces the diffusion of water, ion in film, and coating can be divided into one by one
Zonule reduces the tendency of coating cracking, improves the toughness delay electrochemical reaction of coating, slows down the electrification of metal base
Corrosion rate is learned, epoxy alkene-yellow zinc chromate primer paint coating does pigment with Palta type zinc powder compounding graphene, and filled media is equipped with asphalt mixtures modified by epoxy resin
Rouge, the primer coating have certain electrochemical protection performance.
Coating system according to different corrosive environments classify (I SO12944 standard) design minimum thickness of dry film such as the following table 1 institute
Show.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, and those skilled in the art are to it
In some variations that may make of certain parts embody the principle of the present invention, belong to the scope of protection of the present invention within.
Claims (9)
1. a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system, is coated on the surface of steel construction, feature
It is, the railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system includes successively setting on the outer surface of steel construction
Primer coating, the intermediate lacquer coat of epoxy micaceous iron thickness slurry and the fluorocarbon modified topcoat of graphene set；The primer coating is squama
The molten inorganic alkene-yellow zinc chromate primer paint coating of piece type alcohol or epoxy alkene-yellow zinc chromate primer paint coating；
The molten inorganic alkene-yellow zinc chromate primer paint coating of the Palta type alcohol, epoxy micaceous iron thickness starch intermediate lacquer coat, the fluorocarbon modified finishing coat of graphene
The sum of thickness of dry film of coating is 140 μm -280 μm；
Epoxy alkene-yellow zinc chromate primer paint the coating, epoxy micaceous iron thickness starch the dry film of intermediate lacquer coat, the fluorocarbon modified topcoat of graphene
The sum of thickness is 170 μm -310 μm.
2. a kind of railway steel bridge alkene according to claim 1-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
In the thickness of dry film of the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol is 30 μm -70 μm.
3. a kind of railway steel bridge alkene according to claim 1-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
It is that at least two layers of flake zinc bisque overlaps in parallel, folded array is led in, the molten inorganic alkene-yellow zinc chromate primer paint coating of Palta type alcohol
Lead to layer structure, filling is for conductive graphene between the adjacent flake zinc bisque in the conductting layer structure.
4. a kind of railway steel bridge alkene according to claim 1-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
In the epoxy alkene-yellow zinc chromate primer paint coating is the conductting layer of multilayer flakey layer superposition, the adjacent squama in the conductting layer structure
Filling is for conductive graphene between zinc flake layer.
5. a kind of railway steel bridge alkene according to claim 4-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
In epoxy alkene-yellow zinc chromate primer paint coating thickness of dry film is 60 μm -100 μm.
6. -5 any a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system according to claim 1,
It is characterized in that, the thickness of dry film that the epoxy micaceous iron thickness starches intermediate lacquer coat is 70 μm -120 μm.
7. a kind of railway steel bridge alkene according to claim 6-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
In, the epoxy micaceous iron thickness starch intermediate lacquer coat be at least two layers of flakey micaceous iron oxide layer overlap in parallel, interlaced shape
At shielding layer structure.
8. -5 any a kind of railway steel bridge alkene-zinc-base fluorine carbon super-durable anticorrosion coat system according to claim 1,
It is characterized in that, the thickness of dry film of the fluorocarbon modified topcoat of graphene is 40 μm -90 μm.
9. a kind of railway steel bridge alkene according to claim 8-zinc-base fluorine carbon super-durable anticorrosion coat system, feature exist
In the fluorocarbon modified topcoat of graphene is aging-resistant layer structure.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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