CN105623341B - Function and service coating and preparation method thereof - Google Patents
Function and service coating and preparation method thereof Download PDFInfo
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- CN105623341B CN105623341B CN201610007791.XA CN201610007791A CN105623341B CN 105623341 B CN105623341 B CN 105623341B CN 201610007791 A CN201610007791 A CN 201610007791A CN 105623341 B CN105623341 B CN 105623341B
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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
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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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- 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
- 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
- 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
- C09D7/65—Additives macromolecular
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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
Abstract
The invention discloses a kind of function and service coating and preparation method thereof, belong to coating technology field.Solve that corrosion-resistant finishes thickness in the prior art is big, elasticity is small, destruction, friction resistant poor performance is easily produced in larger stress impact, the problems such as resistance to corrosion seawater is poor, service life is short and can not be used in the range of wider temperature range.The composite coating of the present invention, applied and formed by primary coat, middle painting and face, wherein, primary coat is 8 by mass ratio:1 zinc chromate primer forms with zinc chromate primer curing agent, and thickness is 35 65 μm, and middle painting is made up of epoxy resin, epoxy curing agent, toughener and filler, and thickness is 0.25 0.45mm, and it is 1 that face, which is applied by mass ratio,:1 fluorocarbon coating and functional paint composition, thickness is 0.4 0.8mm.The composite coating possesses excellent corrosion resistance, friction resistant and impact resistance, and coating layer thickness is small, and elasticity is big, can resistant to sea water high/low temperature alternation, can be used in the range of wider temperature range.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of function and service coating and preparation method thereof.
Background technology
Seawater is the very high natural electrolytes of salt concentration, is one of medium that corrosivity is most strong in spontaneous corrosion agent.Ship
Oceangoing ship, military project be mechanical, marine rig floor, desalting plant, seawater pipeline, quay transportation machinery and seashore recreational facilities etc., long-term place
In Yu Haiyang environment, corrosion is extremely serious, significant problem is brought safely to the people and national wealth, so seawater corrosion prevention is not allowed
Ignore.
In the prior art, corrosion-resistant finishes be made up of mostly reisn base material, metal and metal oxide powder or
It is made up of reisn base material admixture part rare earth material.But this type coating on shipborne equipment and part in use, in the presence of
Thickness is big, elasticity is small, destruction, friction resistant poor performance are easily produced in larger stress impact, resistance to corrosion seawater is poor, uses the longevity
Order it is short and the shortcomings of can not be used in the range of wider temperature range, can not meet seawater the change of wide temperature range and real extra large environment under it is long when
Between use decay resistance requirement.
The content of the invention
Present invention aim to address corrosion-resistant finishes thickness in the prior art is big, elasticity is small, is easily rushed in larger stress
Destruction, friction resistant poor performance are produced when hitting, resistance to corrosion seawater is poor, service life is short and can not be used in the range of wider temperature range
The shortcomings of, there is provided a kind of function and service coating and preparation method thereof.
It is as follows that the present invention solves the technical scheme that above-mentioned technical problem uses.
Function and service coating, applied and formed by primary coat, middle painting and face；
The primary coat is 8 by mass ratio:1 zinc chromate primer forms with zinc chromate primer curing agent, and thickness is 35-65 μm；
The middle painting is made up of epoxy resin, epoxy curing agent, toughener and filler, thickness 0.25-
0.45mm；
The epoxy resin is epoxy resin E-20, the one or more in epoxy resin E-44, epoxy resin 830, institute
Epoxy curing agent is stated as the one or more in polyamide 650, polyamide 651, polyamide 650C, ring
The mass ratio of oxygen tree fat and epoxy curing agent is (50-55):(30-100), the toughener are to have itrile group on strand
The end ring oxygen response type liquid nitrile rubber of (- CN), the quality of toughener is epoxy resin and epoxy curing agent gross mass
3-8%, the filler is silicate cenosphere and/or lamellar Ferrite Material, and the quality of filler is asphalt mixtures modified by epoxy resin
The 30-50% of fat and epoxy curing agent gross mass；
It is 1 that the face, which is applied by mass ratio,:1 fluorocarbon coating and functional paint composition, thickness 0.4-0.8mm；
The fluorocarbon coating is (10-12) by mass ratio:1 fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-second
Alkene ether copolymer resin curing agent forms, and the functional paint is 100 by mass ratio:The solvent borne polyurethane tree of (30-40)
Fat and solvent type polyurethane resin curing agent composition.
Preferably, the epoxy resin is epoxy resin E-20, the epoxy curing agent be polyamide 650 or
The mass ratio of polyamide 651, epoxy resin and epoxy curing agent is 1:1.
Preferably, the epoxy resin is the mixture of epoxy resin E-44 and epoxy resin 830, and the epoxy resin is consolidated
Agent is polyamide 650C.
Preferably, the zinc chromate primer curing agent is modified by cardanol amine hardener, and the fluoroolefins-vinyl ethers is copolymerized
Resin curing agent is polyalcohol modified hexamethylene diisocyanate, and the solvent type polyurethane resin curing agent is polyethers
Polyalcohol modified isocyanates.
The preparation method of above-mentioned function and service coating, comprises the following steps：
Step 1: after zinc chromate primer and zinc chromate primer curing agent are uniformly mixed according to a ratio, Metal Substrate is brushed or is sprayed on
On bottom, it is 35-65 μm to thickness, more than normal temperature cure 5h, obtains primary coat；
Step 2: epoxy resin, epoxy curing agent, toughener and filler are dissolved in epoxy resin solvent by proportioning
In, after being well mixed, brush or be sprayed on several times in the primary coat after polishing, cleaning, until thickness reaches 0.25-
0.45mm, more than normal temperature cure 24h, obtain middle painting；
Step 3: fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl ether co-polymer resin curing agent are pressed
Proportioning is well mixed, obtains fluorocarbon coating, and solvent type polyurethane resin and solvent type polyurethane resin curing agent is mixed by proportioning
Close uniformly, obtain functional paint, be then uniformly mixed according to a ratio fluorocarbon coating and functional paint, obtain compo, then will
Compo, which is stood, places 5-15min progress precuring, finally by the compo after precuring through repeatedly brushing or being sprayed on
Coated in after polishing, cleaning, until thickness reaches 0.4-0.8mm, more than normal temperature cure 24h, obtain function and service coating.
Preferably, in step 2 and step 3, the hardening time is respectively 24-48h.
Preferably, the epoxy resin solvent is mass ratio 1:4 n-butanol and the mixture of acetone or mass ratio 1:4
N-butanol and toluene mixture.
Compared with prior art, the beneficial effects of the invention are as follows：
The function and service coating of the present invention is using zinc chromate primer and zinc chromate primer curing agent as primary coat, with epoxy resin, epoxy
Resin curing agent, toughener and filler are middle painting, are applied using fluorocarbon coating and functional paint as face, and the composite coating is easy to scene
Construction, it is environmentally safe after solidification；By the mating reaction of each component, composite coating possesses excellent in metal base surface
Corrosion resistance, friction resistant and impact resistance, and coating layer thickness is small, elasticity is big, can resistant to sea water high/low temperature alternation, in wider temperature
Used in the range of domain, through experimental tests, the thickness of composite coating of the invention be only be existing corrosion-inhibiting coating thickness three/
One or so, test positive tensile strength according to GB/T5210-2006 and can reach more than 15MPa, normal temperature static state seawater immersion test
10000h coating surfaces, without coming off, 50 cycles (2h a cycles) are alternately tested by 0-60 DEG C of cycle and are applied without foaming, coating
Layer surface is without foaming, coating without coming off.
Brief description of the drawings
In Fig. 1, a, b, c are respectively before the composite coating of embodiment 1 soaks in static seawater, soak 5000h and immersion
Surface topography after 10000h.
Embodiment
In order to further appreciate that the present invention, the preferred embodiments of the invention are retouched with reference to embodiment
State, but it is to be understood that these descriptions are simply for further explanation the features and advantages of the present invention rather than to patent of the present invention
It is required that limitation.
The function and service coating of the present invention, applied to form and (answered with function by the primary coat, middle painting and face that are arranged in order from the inside to the outside
The surface for closing coating covering is inner side).
Wherein, primary coat is 8 by mass ratio:1 zinc chromate primer forms with zinc chromate primer curing agent, and thickness is 35-65 μm.Should
Primary coat can be applied to underwater submergence position and naked position waterborne, wide adaptability simultaneously, ensure that the uniformity of coating primary coat.
Zinc chromate primer curing agent is preferably modified by cardanol amine hardener, can be by commercially available.
Middle painting is made up of epoxy resin, epoxy curing agent, toughener and filler, thickness 0.25-0.45mm.Ring
Oxygen tree fat is the one or more in epoxy resin E-20, epoxy resin E-44, epoxy resin 830, and epoxy curing agent is
One or more in polyamide 650, polyamide 651, polyamide 650C, epoxy resin and epoxy resin are consolidated
The mass ratio of agent is (50-55):(30-100), according to the difference of epoxy resin, its preferable epoxy curing agent species
Difference, such as the mixture (mass ratio 1 that epoxy resin is epoxy resin E-44 and epoxy resin 830:5), epoxy resin is solid
Agent is polyamide 650C, according to epoxy resin and the difference of epoxy curing agent species, epoxy resin and asphalt mixtures modified by epoxy resin
Fat curing agent optimum ratio is different, with specific reference to experimental selection, if epoxy resin is epoxy resin E-20, and epoxy curing agent
For polyamide 650 or polyamide 651, the mass ratio of epoxy resin and epoxy curing agent is 1:1.Toughener is
There is the end ring oxygen response type liquid nitrile rubber of itrile group, the quality of toughener is consolidated for epoxy resin and epoxy resin on strand
The 3-8% of agent gross mass, the toughener selected of the present invention can improve the problem of fragility after epoxy resin cure is big, in toughness reinforcing
While enhancing in apply to the adhesive force of primary coat.Filler is silicate cenosphere and/or lamellar Ferrite Material, is filled
The quality of agent is epoxy resin and the 30-50% of epoxy curing agent gross mass, and the filler that the present invention selects can be effective
The contraction deformation after epoxy resin cure is prevented, and further strengthens the sea water corrosion resistant of resin system.
It is 1 that face, which is applied by mass ratio,:1 fluorocarbon coating and functional paint composition, thickness 0.4-0.8mm.The fluorine of the present invention
Carbon coating is (10-12) by mass ratio:1 fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl ether co-polymer tree
Fat curing agent forms, the technology according to known to those skilled in the art, after fluoroolefins-vinyl ether co-polymer resin determines, its
Corresponding curing agent can determine, curing agent can solidify fluoroolefins-vinyl ether co-polymer resin, conventional selection,
Polyalcohol modified methylene diisocyanate is typically adopted as, can be by commercially available.The coating has weatherability, heat-resisting
Property, lower temperature resistance, chemical proofing, and with unique hydrophobicity, low frictional properties and non-stick.Because fluorocarbon coating solidifies
Hardness afterwards is too high, so the present invention adds functional paint in system and improves its elasticity, makes it after film forming certain thickness, has
Flexible function and resisting in seawater has to be destroyed caused by foreign matter impact coating surface.The present invention functional paint be by mass ratio
100:Solvent type polyurethane resin and solvent type polyurethane resin the curing agent composition of (30-40), according to those skilled in the art
Known technology, after solvent type polyurethane resin determines, its corresponding curing agent can determine that curing agent being capable of curable solvent
Type polyurethane resin, the isocyanates of conventional selection, generally modified by polyether glycol can be by commercially available.The painting
Material can further improve the corrosion resistance of coating while shock resistance is ensured.Fluorocarbon coating and functional paint are answered
Closing makes the soft phase in the painting of face be organically combined with hard phase, so as to reach the excellent properties such as corrosion resistance, low frictional properties simultaneously.
It should be noted that the thickness of each coating of function and service coating of the present invention is if it exceeds maximum, can be reduced multiple
Close the adhesive strength of coating；If being less than minimum value, the functions such as seawater corrosion resistance can not be reached, so thickness need to be in the present invention
In the range of.
The preparation method of above-mentioned function and service coating, comprises the following steps：
Step 1: after zinc chromate primer is well mixed with zinc chromate primer curing agent by said ratio, gold is brushed or is sprayed on
Belong in substrate, be 35-65 μm to thickness, more than normal temperature cure 5h, obtain primary coat.
Wherein, according to technology known to those skilled in the art, on the metallic substrate, it is necessary to metallic matrix before prepares coating
Surface is roughened and cleaning treatment.Roughening processing can use 60# corundum to carry out sandblasting to workpiece as sandblasting
Processing, the standard to more than sa2.5 levels；To the position for needing to brush online can not be dismantled, entered using angle grinder or other equipment
Respective horizontal is arrived in the roughening processing of row substrate surface.Cleaning treatment can use n-hexane or other suitable organic solvents to thick
Metal base surface after rough processing carries out cleaning repeatedly extremely without greasy dirt free from admixture dust and particle, complete after solvent completely volatilization
Into.
Step 2: epoxy resin, epoxy curing agent, toughener and filler are dissolved in epoxy resin by said ratio
In solvent, after being well mixed, uniformly brush or be sprayed on several times in the primary coat after polishing, cleaning, ensure coating not every time
Generation sagging, any surface finish, until thickness reaches 0.25-0.45mm, more than normal temperature cure 24h, preferably 24-48h, in obtaining
Apply.
Wherein, hardening time can suitably change according to conditions such as actual solidification temperature and humidity.Epoxy resin solvent is preferred
It is 4 for mass ratio:The mixture or mass ratio of 1 n-butanol and acetone are 4:The mixture of 1 n-butanol and toluene, epoxy resin
The dosage of solvent is not particularly limited, being capable of dissolved epoxy.The polishing of primary coat, cleaning treatment are people in the art
The known technology of member.
Step 3: fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl ether co-polymer resin curing agent are pressed
Said ratio is well mixed, and obtains fluorocarbon coating, by solvent type polyurethane resin and solvent type polyurethane resin curing agent by upper
It is well mixed to state proportioning, obtains functional paint, is then well mixed fluorocarbon coating and functional paint by said ratio, mixed
Coating is closed, then compo is stood and places 5-15min progress precuring, finally by the compo after precuring through repeatedly equal
It is even to brush or coated in being sprayed on after polishing, cleaning, ensure that sagging, any surface finish, until thickness do not occur for coating every time
Reach 0.4-0.8mm, more than normal temperature cure 24h, preferably 24-48h, obtain function and service coating.
Wherein, the polishing of middle painting, cleaning treatment are the known technology of those skilled in the art.
To increase the service life, function and service coating of the invention can carry out regularly Inspection and maintenance and maintenance, if table
Face can carry out local route repair according to degree of injury or layering is repaired because abnormal destruction produces damage.
Normal temperature in the present invention is the known temperature range of those skilled in the art, generally 20-30 DEG C.
Further detailed description is done to the present invention with reference to embodiment, material can all pass through business used in embodiment
Purchase obtains.
Embodiment 1
Function and service coating is applied and formed by primary coat, middle painting and face, and primary coat is 8 by mass ratio:1 zinc chromate primer FXH02-7
Formed with modified by cardanol amine hardener ZY-2015, thickness is 45 μm, and middle apply by mass ratio is 15:33:48:5:30 epoxy
Resin E-44, epoxy resin 830, epoxy curing agent 651, toughener JHZ-403 and hollow glass bead composition, thickness are
0.3mm, it is 77 that face, which is applied by mass ratio,:7:60:24 fluoroolefins-vinyl ether co-polymer resin TFE-PPVE, fluoroolefins-ethene
Base ether copolymer resin TFE-PPVE curing agent, solvent type polyurethane resin S06-0215 and solvent type polyurethane resin S06-
0215 curing agent forms, thickness 0.7mm.
The preparation method of above-mentioned function and service coating：
Step 1: by zinc chromate primer FXH02-7 and modified by cardanol amine hardener ZY-2015 in mass ratio 8:1 mixing is equal
After even, spraying on the metallic substrate, is 45 μm to thickness, normal temperature cure 5h, obtains primary coat；
Step 2: by epoxy resin E-44, epoxy resin 830, epoxy curing agent 651, toughener JHZ-403 and glass
Glass cenosphere is 15 in mass ratio:33:48:5:30 are dissolved in epoxy resin solvent (mass ratio 4:1 n-butanol and acetone it is mixed
Compound) in, after being well mixed, it is sprayed on several times in the primary coat after polishing, cleaning, until thickness reaches 0.3mm, normal temperature is solid
Change 24h, obtain middle painting；
Step 3: by fluoroolefins-vinyl ether co-polymer resin TFE-PPVE, fluoroolefins-vinyl ether co-polymer resin
TFE-PPVE curing agent in mass ratio 77:7 is well mixed, obtains fluorocarbon coating, by solvent type polyurethane resin S06-0215 and
Solvent type polyurethane resin S06-0215 curing agent in mass ratio 60:24 is well mixed, obtains functional paint, then applies fluorine carbon
Material and functional paint in mass ratio 1:1 is well mixed, obtains compo, then compo is stood and places 10min progress in advance
Solidification, finally coats the compo after precuring in being repeatedly sprayed on after polishing, cleaning, until thickness reaches
0.7mm, normal temperature cure 48h, obtains composite coating.
The composite coating of embodiment 1 is pulled open into method adhesion test according to the paint and varnish of GB/T 5210-2006 to carry out
Detection, shown in positive tensile strength test results table 1.
The tensile strength of the composite coating of the embodiment 1 of table 1
As it can be seen from table 1 the composite coating of the present invention possesses good adhesive strength.
The composite coating of embodiment 1 is subjected to seawater corrosion resistance detection, static seawater immersion test result is as shown in Figure 1.
In Fig. 1, a, b, c be respectively composite coating immersion before, immersion 5000h and soak the surface topography after 10000h, can be with from figure
Find out, composite coating normal temperature static state seawater immersion test 10000h coating surfaces of the invention are without foaming, coating without coming off.
The composite coating of embodiment 1 is subjected to rub resistance detection, measures and is slided by 2000 times with metal surface are relative
Frictional experiment, coating abrasion thickness are 0.065mm.
The composite coating of embodiment 1 is alternately tested into 50 cycle (2h a cycles) coating surfaces by 0-60 DEG C of cycle
Without foaming, coating without coming off.
Embodiment 2
Function and service coating is applied and formed by primary coat, middle painting and face, and primary coat is 8 by mass ratio:1 zinc chromate primer FXH02-7
Formed with modified by cardanol amine hardener ZY-2015, thickness is 35 μm, and middle apply by mass ratio is 55:30:2.55:25.5 ring
Oxygen tree fat E-20, epoxy curing agent polyamide 651, butadiene acrylonitrile copolymerization nitrile rubber and lamellar ferrite
Composition, thickness 0.25mm, it is 12 that face, which is applied by mass ratio,:1:10:3 fluoroolefins-vinyl ether co-polymer resin (Dupont
340BK), fluoroolefins-vinyl ether co-polymer resin (Dupont 340BK) curing agent, solvent type polyurethane resin S04-
950H.YH, solvent type polyurethane resin S04-950H.YH curing agent composition, thickness 0.8mm.
The preparation method of above-mentioned function and service coating：
Step 1: by zinc chromate primer FXH02-7 and modified by cardanol amine hardener ZY-2015 in mass ratio 8:1 mixing is equal
After even, spraying on the metallic substrate, is 35 μm to thickness, normal temperature cure 5h, obtains primary coat；
Step 2: epoxy resin E-20, epoxy curing agent 651, butadiene acrylonitrile are copolymerized nitrile rubber and layer
Sheet ferrite is 55 in mass ratio:30:2.55:25.5 are dissolved in epoxy resin solvent (mass ratio 4:1 n-butanol and acetone
Mixture) in, after being well mixed, it is sprayed on several times in the primary coat after polishing, cleaning, until thickness reaches 0.25mm, often
Temperature solidification 24h, obtains middle painting；
Step 3: fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl ether co-polymer resin curing agent are pressed
Mass ratio 12:1 is well mixed, fluorocarbon coating is obtained, by solvent type polyurethane resin S04-950H.YH and solvent borne polyurethane tree
Fat S04-950H.YH curing agent in mass ratio 10:3 is well mixed, functional paint is obtained, then by fluorocarbon coating and functional paint
In mass ratio 1:1 is well mixed, obtains compo, then compo is stood and places 5min progress precuring, finally will be pre-
Compo after solidification is coated in being repeatedly sprayed on after polishing, cleaning, until thickness reaches 0.8mm, normal temperature cure
48h, obtain composite coating.
The composite coating of embodiment 2 is pulled open into method adhesion test according to the paint and varnish of GB/T 5210-2006 to carry out
Detection, shown in positive tensile strength test results table 2.
The tensile strength of the composite coating of the embodiment 2 of table 2
From table 2 it can be seen that the composite coating of the present invention possesses good adhesive strength.
The composite coating of embodiment 2 is subjected to seawater corrosion resistance detection, static seawater soak real 10000h coating surfaces without
Foaming, coating are without coming off.
The composite coating of embodiment 2 is subjected to rub resistance detection, measures and is slided by 2000 times with metal surface are relative
Frictional experiment, coating abrasion thickness are 0.07mm.
The composite coating of embodiment 2 is alternately tested into 50 cycle (2h a cycles) coating surfaces by 0-60 DEG C of cycle
Without foaming, coating without coming off.
Embodiment 3
Function and service coating is applied and formed by primary coat, middle painting and face, and primary coat is 8 by mass ratio:1 zinc chromate primer FXH02-7 with
Modified by cardanol amine hardener ZY-2015 is formed, and thickness is 65 μm, and middle apply by mass ratio is 55:100:12.4:77.5 asphalt mixtures modified by epoxy resin
Fat E-20, epoxy curing agent 651, butadiene acrylonitrile copolymerization nitrile rubber and silicate cenosphere composition, thickness are
0.45mm, it is 10 that face, which is applied by mass ratio,:1:7.85:3.15 fluoroolefins-vinyl ether co-polymer resin ZB04-40, fluoroolefins-
Vinyl ether co-polymer resin ZB04-40 curing agent, polyaspartic ester resin F-524 and modifying diisocyanates polyureas are consolidated
Agent G05A-90 is formed, thickness 0.4mm.
The preparation method of above-mentioned function and service coating：
Step 1: by zinc chromate primer FXH02-7 and modified by cardanol amine hardener ZY-2015 in mass ratio 8:1 mixing is equal
After even, spraying on the metallic substrate, is 65 μm to thickness, normal temperature cure 5h, obtains primary coat；
Step 2: epoxy resin E-20, epoxy curing agent, butadiene acrylonitrile are copolymerized nitrile rubber and silicate
Cenosphere is 55 in mass ratio:100:12.4:77.5 are dissolved in epoxy resin solvent (mass ratio 1:4 n-butanol and toluene)
In, after being well mixed, it is sprayed on several times in the primary coat after polishing, cleaning, until thickness reaches 0.45mm, normal temperature cure
24h, obtain middle painting；
Step 3: by fluoroolefins-vinyl ether co-polymer resin ZB04-40, fluoroolefins-vinyl ether co-polymer resin
ZB04-40 curing agent in mass ratio 10:1 is well mixed, obtains fluorocarbon coating, by polyaspartic ester resin F-524 and changes
Property diisocyanate polyureas curing agent G05A-90 in mass ratio 10:4 is well mixed, functional paint is obtained, then by fluorocarbon coating
With functional paint in mass ratio 1:1 is well mixed, obtains compo, then compo standing placement 15min progress is pre- solid
Change, finally coat the compo after precuring in being repeatedly sprayed on after polishing, cleaning, until thickness reaches
0.4mm, normal temperature cure 48h, obtains composite coating.
The composite coating of embodiment 3 is pulled open into method adhesion test according to the paint and varnish of GB/T 5210-2006 to carry out
Detection, shown in positive tensile strength test results table 3.
The tensile strength of the composite coating of the embodiment 3 of table 3
From table 3 it can be seen that the composite coating of the present invention possesses good adhesive strength.
The composite coating of embodiment 3 is subjected to seawater corrosion resistance detection, static seawater soak real 10000h coating surfaces without
Foaming, coating are without coming off.
The function and service coating of embodiment 3 is subjected to rub resistance detection, measured relative by 2000 times with metal surface
Sliding friction is tested, and coating abrasion thickness is 0.068mm.
The function and service coating of embodiment 3 is alternately tested into 50 cycle (2h a cycles) coatings by 0-60 DEG C of cycle
Surface is without foaming, coating without coming off.
Obviously, the explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should refer to
Go out, under the premise without departing from the principles of the invention, can also be to this hair for the those of ordinary skill of the technical field
Bright to carry out some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (7)
1. function and service coating, it is characterised in that the composite coating is applied and formed by primary coat, middle painting and face；
The primary coat is 8 by mass ratio:1 zinc chromate primer forms with zinc chromate primer curing agent, and thickness is 35-65 μm；
The middle painting is made up of epoxy resin, epoxy curing agent, toughener and filler, thickness 0.25-0.45mm；
The epoxy resin is epoxy resin E-20, the one or more in epoxy resin E-44, epoxy resin 830, the ring
Oxygen resin curing agent is polyamide 650, the one or more in polyamide 651, polyamide 650C, asphalt mixtures modified by epoxy resin
The mass ratio of fat and epoxy curing agent is (50-55):(30-100), the toughener are the end for having on strand itrile group
Epoxy reaction type liquid nitrile rubber, the quality of toughener are epoxy resin and the 3-8% of epoxy curing agent gross mass, institute
It is silicate cenosphere and/or lamellar Ferrite Material to state filler, and the quality of filler is epoxy resin and asphalt mixtures modified by epoxy resin
The 30-50% of fat curing agent gross mass；
It is 1 that the face, which is applied by mass ratio,:1 fluorocarbon coating and functional paint composition, thickness 0.4-0.8mm；
The fluorocarbon coating is (10-12) by mass ratio:1 fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl
Ether copolymer resin curing agent forms, and the functional paint is 100 by mass ratio:The solvent type polyurethane resin of (30-40) and
Solvent type polyurethane resin curing agent forms.
2. function and service coating according to claim 1, it is characterised in that the epoxy resin is epoxy resin E-20,
The epoxy curing agent is the matter of polyamide 650 or polyamide 651, epoxy resin and epoxy curing agent
Amount is than being 1:1.
3. function and service coating according to claim 1, it is characterised in that the epoxy resin is that mass ratio is 1:5
The mixture of epoxy resin E-44 and epoxy resin 830, the epoxy curing agent are polyamide 650C.
4. function and service coating according to claim 1, it is characterised in that the zinc chromate primer curing agent changes for anacardol
Property amine hardener, the fluoroolefins-vinyl ether co-polymer resin curing agent is the polyalcohol modified isocyanic acid of hexa-methylene two
Ester, the solvent type polyurethane resin curing agent are the isocyanates of modified by polyether glycol.
5. the preparation method of the function and service coating described in claim 1-4 any one, it is characterised in that including following step
Suddenly：
Step 1: after zinc chromate primer and zinc chromate primer curing agent are uniformly mixed according to a ratio, brush or spray on the metallic substrate,
It is 35-65 μm to thickness, more than normal temperature cure 5h, obtains primary coat；
Step 2: epoxy resin, epoxy curing agent, toughener and filler are dissolved in epoxy resin solvent by proportioning,
After well mixed, brush or be sprayed on several times in the primary coat after polishing, cleaning, until thickness reaches 0.25-0.45mm, often
Temperature solidification more than 24h, obtains middle painting；
Step 3: by fluoroolefins-vinyl ether co-polymer resin and fluoroolefins-vinyl ether co-polymer resin curing agent by proportioning
It is well mixed, fluorocarbon coating is obtained, solvent type polyurethane resin and solvent type polyurethane resin curing agent is equal by proportioning mixing
It is even, functional paint is obtained, is then uniformly mixed according to a ratio fluorocarbon coating and functional paint, obtains compo, then will mixing
Coating, which is stood, places 5-15min progress precuring, finally by the compo after precuring through repeatedly brushing or being sprayed on through beating
Coated in after mill, cleaning, until thickness reaches 0.4-0.8mm, more than normal temperature cure 24h, obtain function and service coating.
6. the preparation method of function and service coating according to claim 5, it is characterised in that in step 2 and step 3,
The hardening time is respectively 24-48h.
7. the preparation method of function and service coating according to claim 5, it is characterised in that the epoxy resin solvent is
Mass ratio 1:4 n-butanol and the mixture of acetone or mass ratio 1:4 n-butanol and the mixture of toluene.
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