CN105733328A - Low-temperature curable anticorrosive coating composition of high corrosion resistance and zinc-plated steel sheet coated with low-temperature curable anticorrosive coating composition - Google Patents
Low-temperature curable anticorrosive coating composition of high corrosion resistance and zinc-plated steel sheet coated with low-temperature curable anticorrosive coating composition Download PDFInfo
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- CN105733328A CN105733328A CN201510992186.8A CN201510992186A CN105733328A CN 105733328 A CN105733328 A CN 105733328A CN 201510992186 A CN201510992186 A CN 201510992186A CN 105733328 A CN105733328 A CN 105733328A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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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
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/02—Polysilicates
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
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Abstract
The invention provides a low-temperature curable anticorrosive coating composition of high corrosion resistance. The anticorrosive coating composition comprises 5 wt% to 30 wt% of a silane compound, 1 wt% to 10 wt% of a silicate compound, 0.1 wt% to 5 wt% of a titanium compound, 0.1 wt% to 5 wt% of a wax, 1 wt% to 15 wt% of an alcohol for low temperature curing and the balance of a solvent. The composition does not contain chromium, thus being harmless to human bodies. In addition, the composition is high in degree of solution stability and curable at a low temperature during the surface treatment process. A steel sheet processed by the above composition is high in corrosion resistance and seam welding.
Description
The cross reference of related application
This application claims in December in 2014 priority to the patent application that application number is 10-2014-0188920 of Korean Intellectual Property Office's submission on the 24th and rights and interests, its full content is hereby incorporated herein by this.
Background technology
The present invention relates to the low-temperature curable anticorrosive paint composition with high corrosion resistance, and be coated with the galvanized steel plain sheet of low-temperature curable anticorrosive paint composition.
In more than ten years in past, environmental problem obtains global concern day by day, has strengthened the regulation to the material such as heavy metal and halogen compounds causing environmental pollution.The typical case of this regulation is the EU's instruction " instruction about being limited in electric equipment products to use some harmful substance " (RoHS) implemented on July 1st, 2006；In " waste electronic andelectrical equipment instruction " (WEEE) of enforcement on July 1st, 2006 and in " scrap-car instruction " (ELV) of enforcement on January 1st, 2007.Therefore, it has been made that very big effort carrys out development environment friendly product at many industrial circles.
In the related art, formed for manufacturing automobile, household electrical appliance and the galvanized steel plain sheet of construction building thing, galvanized alloy steel plate and alloy plating layer steel plate with the chromate film that chromium (Cr) is main component, in order to improve corrosion resistance and the coat adhesive force of steel plate.
But, chromium (III) compound being applied to steel plate coating is converted into harmful chromium (VI).Therefore, in the more than ten years in past, chromium free paint composition has been used for coated steel plates.Generally, the fluoropolymer resin containing such as acrylic resin or polyurethane resin is used to the surface treatment of steel plate as the chromium free paint composition of main component, Ludox and metal composite inhibitor.
But, the chromium free paint composition containing fluoropolymer resin with for coated steel plates is cured at relatively high temperature, it is therefore desirable to high temperature drying equipment.But, the galvanizing equipment of some steelmakers only include can under 100 DEG C or lower temperature withering drying device.Accordingly, it would be desirable to the chromium-free solution compositions that exploitation is curable at relatively low temperatures.
Recently, having been disclosed for the technology utilizing chromium free paint composition to process surface of steel plate, this chromium free paint composition contains silane compound and curable at relatively low temperatures.But, these technology are it cannot be guaranteed that enough corrosion resistances and have the problem relevant to the stability of solution of compositions.
Summary of the invention
Each aspect of the present invention can provide the low-temperature curable anticorrosive paint composition without harmful chromium and is coated with anticorrosive paint composition and has the galvanized steel plain sheet of high corrosion resistance.
According to an aspect of the present invention, a kind of low-temperature curable anticorrosive paint composition with high corrosion resistance comprises the steps that the solvent of the silane compound of 5wt%-30wt%, the polysilicate compound of 1wt%-10wt%, the titanium compound of 0.1wt%-5wt%, the wax of 0.1wt%-5wt%, the alcohol for low-temperature setting of 1wt%-15wt% and surplus.
Silane compound can include selecting at least one in free group consisting of: the hydrolyzate of epoxy silane compounds, amino silane compounds, epoxy silane compounds or amino silane compounds and the condensation product of described hydrolyzate.
Silane compound can be the mixture of amino silane compounds and epoxy silane compounds, and wherein amino silane compounds can be (1:0.2)-(1:10) with the mixing ratio of epoxy silane compounds.
nullSilane compound can include selecting at least one in free group consisting of: vinyl methoxy silane、Vinyltrimethoxy silane、Vinyl epoxy silane、Vinyl three epoxy silane、3-aminopropyl three epoxy silane、3-glycydoxy trimethoxy silane、Glycydoxy trimethoxy silane (3-metaglycidoxypropyltrimethoxysilane) between 3-、3-mercaptopropyl trimethoxysilane、N-(1,3-dimethylbutylene)-3-(three epoxy silanes)-1-propylamine、N,Double; two [3-(trimethoxysilyl) propyl group] ethylenediamine of N-、N-β (aminoethyl)-γ-aminopropyltrimethoxysilane、N-β (aminoethyl)-gamma-aminopropyl-triethoxy-silane、N-β (aminoethyl)-γ-aminopropyltriethoxy triethoxysilane、N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane、N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane、γ-glycydoxy triethoxysilane、γ-glycidyl ether oxygen base trimethyl dimethoxysilane、2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane、γ-methacryloxypropyl trimethoxy silane、γ-methacryloxypropyl、γ-mercaptopropyl trimethoxysilane、Gamma-mercaptopropyltriethoxysilane and N-[2-(vinyl benzyl amino) ethyl]-3-aminopropyl trimethoxysilane.
Polysilicate compound can include selecting at least one in free group consisting of: poly-lithium silicate, sodium polysilicate, polysilicate potassium and silica sol.
Titanium compound can include selecting at least one in free group consisting of: titanium carbonate (titaniumcarbonate), two (triethanolamine base) isopropyl titanate (isopropylditriethanolaminotitanate), titanium lactate chelate and titanium acetylacetone.
Wax can include polyethylene, politef or its mixture.
Alcohol for low-temperature setting can include selecting at least one in free group consisting of: ethanol, propanol and isopropanol.
According to a further aspect in the invention, the galvanized steel plain sheet with high corrosion resistance comprises the steps that steel plate；Zinc coat, it is formed on the one or both sides of steel plate；Coat, it is formed on zinc coat, and wherein coat can be the cured product of anticorrosive paint composition.
The solidification temperature of anticorrosive paint composition can be 50 DEG C-150 DEG C.
The weight of coat can be 0.05g/m in the dry state2-2.0g/m2。
Zinc coat can include electro-galvanized layer, dip galvanized, alloyed hot-dip zinc-coated layer or aluminum-zinc alloy coating.
Accompanying drawing explanation
Aforementioned aspect of the present invention and other aspects, features and advantages will be more clearly understood that from the detailed description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic cross sectional views that the galvanized steel plain sheet being coated with anticorrosive coating composition in accordance with an exemplary embodiment of the invention is described；
Fig. 2 illustrates the view of the photo of the cup of embodiment and comparative example after fuel resistance test.
Fig. 3 is the chart that the seam welding current range for embodiment and the steel plate of comparative example is described；
Fig. 4 is the view of the photo of the steel plate of embodiment and comparative example after explanation corrosion resistance test.
Detailed description of the invention
Hereinafter, the embodiment of present inventive concept is described below by reference accompanying drawing.
But, present inventive concept can illustrate in many different forms, and should not be construed as limited to specific embodiments set forth herein.Certainly, it is provided that these embodiments make the present invention comprehensively with complete, and pass on the scope of the present invention fully to those skilled in the art.
In entire disclosure, it will be appreciated that, when element such as layer, region or wafer (substrate) are referred to as " on another element ", " being connected to " or " combining extremely " another element, it can be located directly in " on another element ", " being connected to " or " combining extremely " another element, maybe can there are other elements got involved therebetween.On the contrary, when element is referred to as " directly on another element ", " being connected directly to " or " being bonded directly to " another element, it is absent from getting involved element therebetween or layer.Identical label represents identical element in the whole text.Term as used herein "and/or" includes any one one or more combination and all combinations of relevant Listed Items.
Obviously, although term first, second, third, etc. can be used for describing various component, assembly, region, layer and/or part herein, but these components, assembly, region, layer and/or part should not be limited by these terms.These terms are only for making a distinction a component, assembly, region, layer or part with another region, layer or part.Therefore, the first component discussed below, the first assembly, first area, ground floor or Part I can be second component, the second assembly, second area, the second layer or Part II under the premise instructed without departing substantially from exemplary.
For ease of describing, may used herein space relative terms such as " ... top (above) ", " (upper) above ", " ... lower section (below) " and " following (lower) " etc. to describe the relation of an element and other element as illustrated in the drawing.It will be appreciated that except the direction described in the drawings, space relative terms be intended to use and operate in the different directions of device.Such as, when device in flipchart, be described as " top " of other elements or " above " element be subsequently positioned at other elements or parts " lower section " and " below ".Therefore, direction, top and direction, lower section can be contained in term " in ... top " according to the specific direction of figure.Device can be adjusted to that other direction (90-degree rotation or in other direction), and space used herein relatively describes language (descriptors) and can be interpreted accordingly.
Term as used herein is only used for describing specific embodiment, it is no intended to the design of the restriction present invention.As used herein, unless the context clearly indicates otherwise, otherwise singulative " one (a) ", " one (an) " and " described (the) " is intended to also include plural form.It will be further appreciated that, the term " including (comprises) " used in this manual and/or " including (comprising) " describe the existence of feature, integer, step, operation, component, element and/or its group set forth in detail, but are not precluded from existence or the interpolation of one or more further feature, integer, step, operation, component, element and/or its group.
Hereinafter, reference being illustrated, the schematic diagram of embodiment of present inventive concept is to describe the embodiment of present inventive concept.In the accompanying drawings, for instance, due to manufacturing technology and/or tolerance, the amendment of the shape illustrated can be estimated.Therefore, the embodiment of present inventive concept should not be construed as limited to the given shape of regions illustrated herein, for instance includes the change of shape result in manufacturing.Following embodiment also can be made up of one or its combination.
The content of the following description of the present invention design can have various configurations, only proposes required configuration at this, but is not limited to this.
The exemplary of the present invention provides a kind of low-temperature curable anticorrosive paint composition with high corrosion resistance.In detail, low-temperature curable anticorrosive paint composition includes: the silane compound of 5wt%-30wt%, the polysilicate compound of 1wt%-10wt%, the titanium compound of 0.1wt%-5wt%, the wax of 0.1wt%-5wt%, 1wt%-15wt% for the alcohol of low-temperature setting, and the solvent of surplus.
Silane compound can include selecting at least one in free group consisting of: the condensation product of epoxy silane compounds, amino silane compounds, its hydrolyzate and described hydrolyzate.Hydrolyzate can be to pass through the silanol compound that the hydrolysis of silane compound obtains, and condensation product can be the oligomer that can be obtained by the condensation of hydrolyzate.
In an exemplary embodiment of the present invention, it is preferable that based on the gross weight 100wt% of anticorrosive paint composition, the content of silane compound can be 5wt%-30wt%, more preferably 5wt%-20wt%.If the content of silane compound is less than 5wt%, then can not fully improve corrosion resistance and processability.If the content of silane compound is more than 30wt%, then it is likely difficult to and prepares anticorrosive paint composition and the stability of solution of anticorrosive paint composition may be reduced.
Silane compound can be the mixture of amino silane compounds and epoxy silane compounds.In this case, the mixed proportion of amino silane compounds and epoxy silane compounds may preferably be (1:0.2)-(1:10), it is more preferred to for (1:0.5)-(1:4.3).If the amount of epoxy silane component is less than the amount of amino silane compounds 0.2 times, then the reaction in amino silane compounds can increase, because the amount of amino silane compounds is too much, is thus likely to the performance of deterioration coat.On the contrary, if bigger than the amount of amino silane compounds 10 times of the amount of epoxy silane component, then the reaction in epoxy silane compounds can increase, because the amount of epoxy radicals silicone hydride compound is too much, is thus likely to the performance of deterioration coat.
nullIn an exemplary embodiment of the present invention，The silane compound of the low-temperature curable anticorrosive paint composition with high corrosion resistance may include but be not limited to，Select at least one in free group consisting of: vinyl methoxy silane、Vinyltrimethoxy silane、Vinyl epoxy silane、Vinyl three epoxy silane、3-aminopropyl three epoxy silane、3-glycydoxy trimethoxy silane、Glycydoxy trimethoxy silane between 3-、3-mercaptopropyl trimethoxysilane、N-(1,3-dimethylbutylene)-3-(three epoxy silanes)-1-propylamine、N,Double; two [3-(trimethoxysilyl) propyl group] ethylenediamine of N-、N-β (aminoethyl)-γ-aminopropyltrimethoxysilane、N-β (aminoethyl)-gamma-aminopropyl-triethoxy-silane、N-β (aminoethyl)-γ-aminopropyltriethoxy triethoxysilane、N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane、N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane、γ-glycydoxy triethoxysilane、γ-glycidyl ether oxygen base trimethyl dimethoxysilane、2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane、γ-methacryloxypropyl trimethoxy silane、γ-methacryloxypropyl、γ-mercaptopropyl trimethoxysilane、Gamma-mercaptopropyltriethoxysilane and N-[2-(vinyl benzyl amino) ethyl]-3-aminopropyl trimethoxysilane.
Such as, the polysilicate compound of anticorrosive paint composition may include but be not limited to, and selects at least one in free group consisting of: poly-lithium silicate, sodium polysilicate, polysilicon acid potassium and silica sol.The content of polysilicate compound may preferably be 1wt%-10wt%, it is more preferred to for 2wt%-8wt%.If the content of polysilicate compound is less than 1wt%, then it is likely difficult to and obtains enough corrosion resistances.On the contrary, if the content of polysilicate compound is more than 10wt%, then it is likely to be formed crisp coat and the stability of solution of anticorrosive paint composition may be reduced.
The titanium compound of the anticorrosive paint composition of exemplary can promote the cross-linking reaction of coat and improve the adhesive force of coat.Titanium compound may include but be not limited to select at least one in free group consisting of: titanium carbonate, two (triethanolamine base) isopropyl titanate, titanium lactate chelate and titanium acetylacetone.The content of titanium compound may preferably be 0.1wt%-5wt%.If the content of titanium compound is less than 0.1wt%, then may not fully there is cross-linking reaction and the corrosion resistance of deficiency can be obtained.On the contrary, if the content of titanium compound is more than 5wt%, then the stability of solution of anticorrosive paint composition may be reduced.
In exemplary disclosed by the invention, anticorrosive paint composition can include wax compound.Wax compound may include but be not limited to, polyethylene, politef or its mixture.The content of wax compound may preferably be 0.1wt%-5wt%.If the content of wax compound is less than 0.1wt%, then the lubricating function of wax compound is likely to deficiency, and if the content of wax compound is more than 5wt%, then the surface quality of the steel plate being coated with anticorrosive paint composition is likely to poor.
Additionally, anticorrosive paint composition can include the alcohol for low-temperature setting, in order to improve with cold drying process and waiting period relevant character.Alcohol for low-temperature setting may include but be not limited to, and selects at least one in free group consisting of: ethanol, propanol and isopropanol.Content for the alcohol of low-temperature setting can be preferably 1wt%-15wt%.If the content of alcohol is less than 1wt%, then coat can not fully dry at low temperatures.On the contrary, if the content of alcohol is more than 15wt%, then due to the evaporation of alcohol in coat solidification process, the solid part branch of coat significantly changes.
Another exemplary of the present invention provides the galvanized steel plain sheet with high corrosion resistance.Galvanized steel plain sheet includes: steel plate；Zinc coat, it is formed on the one or both sides of steel plate and coat, and it is formed on zinc coat.Coat is the cured product of above-mentioned anticorrosive paint composition.
Preferably, coat can have 0.05g/m in the dry state2-2.0g/m2Weight, more preferably 0.1g/m2-1.0g/m2.If the weight of coat is less than 0.05g/m2, then coat is likely to corrosion resistance and the fuel resistance without enough degree, and if the weight of coat is more than 2.0g/m2, then the insulating capacity of coat can increase thus causing the weldability of difference.Zinc coat can include electro-galvanized layer, dip galvanized, alloyed hot-dip zinc-coated layer or aluminum-zinc alloy coating.
In an exemplary embodiment of the present invention, anticorrosive paint composition by utilizing above-mentioned anticorrosive paint composition coating zinc coating and can be cured to form coat and manufactures by the galvanized steel plain sheet with high corrosion resistance.
Coating can by selecting the method in free group consisting of to perform: roll application, the tape casting (castingmethod), silk screen print method, spraying process, rotogravure application method and infusion process.Although coating is not limited to listed painting method, but coating carries out also by roll application.When anticorrosive paint composition is applied to galvanized steel plain sheet by roll application formation coat, dried at coat, it is preferable that the weight of coat can be regulated to 0.05g/m2-2.0g/m2Scope in.
The solidification temperature of anticorrosive paint composition can be 50 DEG C-150 DEG C.If the solidification temperature of anticorrosive paint composition is lower than 50 DEG C, then organic component and inorganic component can not be sufficiently carried out curing reaction, thus corrosion resistance and fuel resistance cannot be ensured.On the contrary, if the solidification temperature of anticorrosive paint composition is higher than 150 DEG C, then may reduce cross-linking reaction, i.e. selective reaction between amino silane compounds and epoxy silane compounds, thus relatively hard coat can be formed, and then cause poor in processability.
Hereinafter, will by the embodiment present invention more particularly described below.Following embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention.
Embodiment
Use zinc-plated (GA) steel plate of commercially available electrogalvanizing (EG) steel plate, alloying and zinc-plated (GI) steel plate.The coating weight of EG steel plate is 10g/m2-40g/m2.The coating weight of GA steel plate is 20g/m2-60g/m2And the content of ferrum (Fe) is 7%-15% in the coating of GA steel plate.Additionally, the coating weight of EI steel plate is 40g/m2-200g/m2。
[embodiment 1]
It is made by anticorrosive paint composition.Gross weight 100wt% based on anticorrosive paint composition, the N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane (amino silane compounds) of the 3-glycydoxy trimethoxy silane (epoxy radicals silicone hydride compound) of 3wt% and 7wt% is mixed, and mixture is hydrolyzed.Hereafter, the poly-lithium silicate of 3wt% is dissolved in the mixture of hydrolysis, stirring mixture 30 minutes.Finally, by two (triethanolamine base) isopropyl titanate of 3wt%, 1wt% politef (PTFE) wax, join in mixture for the isopropanol of 3wt% and the pure water of cold drying, and mixture is at room temperature stirred 30 minutes with the speed of 100rpm (revolutions per minute).
[embodiment 2-12]
Prepare the anticorrosive paint composition with the constituent content shown in table 1 in the same manner as example 1.
[comparative example 1-3]
Prepare the anticorrosive paint composition with the constituent content shown in table 1 in the same manner as example 1.
As shown in table 1, the stability of solution of anticorrosive paint composition of embodiment 1-12 and comparative example 1-3, fuel resistance, corrosion resistance and seam welding property are assessed.
<stability of solution assessment>
The anticorrosive paint composition of embodiment 1-12 and comparative example 1-3 is saved in the thermostat maintaining 60 DEG C of temperature one week, then the precipitation in the viscosity of anticorrosive paint composition and gelation and anticorrosive paint composition is observed and assess as follows.
◎: do not observe viscosity increase, gelation and precipitation.
Zero: observe that viscosity adds 4% or more.
△: observe that viscosity adds 10% or more.
×: observe viscosity increase, gelation and precipitation.
<fuel resistance assessment>
Deterioration gasoline, bio-ethanol, deterioration diesel oil and biodiesel is utilized to carry out fuel resistance test.By obtaining the steel plate of composite coated with the anticorrosive paint composition coated steel plates of embodiment and comparative example.Then the sample formation by composite coated layer steel plate is cup (cup) (blanking size (blanksize): 115mm × 15mm, cup sized data: 50mm diameter drift, 30mm deep drawn (drawing), drift R=punch die R=6R), then with filling fuels cup and use the glass plate of O to cover.Then the fuel resistance of cup is estimated.
In detail, provide by the pure water of 5wt% and 20ppm formic acid being joined the deterioration gasoline prepared in gasoline in cup, cup is maintained 1000 hours simultaneously with the rate oscillation of 60 circulations per minute at 60 DEG C.Hereafter, the corrosion of cup (steel plate) is estimated.Cup provides by the bio-ethanol of 20wt%, the pure water of 5wt% and the formic acid of 20ppm being joined the bio-ethanol prepared in gasoline, cup is maintained 1000 hours simultaneously with the rate oscillation of 60 circulations per minute at 60 DEG C.Hereafter, the corrosion of cup (steel plate) is estimated.
Cup provides by the pure water of 5wt% and the formic acid of 20ppm being joined the deterioration diesel oil prepared in gasoline, cup is maintained eight weeks simultaneously with the rate oscillation of 60 circulations per minute at 90 DEG C.Hereafter, the corrosion of cup (steel plate) is estimated.Cup provides by the biodiesel of 20wt%, the pure water of 5wt% and the formic acid of 20ppm being joined the biodiesel prepared in diesel oil, cup is maintained eight weeks simultaneously with the rate oscillation of 60 circulations per minute at 90 DEG C.Hereafter, the corrosion of cup (steel plate) is estimated.
Fig. 2 illustrates the view of the photo of the cup of embodiment and comparative example after fuel resistance test.Fuel resistance is assessed as follows.
◎ corroded area rate: 0%
Zero corroded area rate: less than 5%
△ corroded area rate: 5%-30%
× corroded area rate: more than 30%
<corrosion resistance assessment>
The corrosion resistance of composite coated steel plate be by by composite coated steel plate at the salt content of 5%, the temperature of 35 DEG C and 1kg/cm2Atomisation pressure when maintain 480 hours and measure the area of red rust on composite coated steel plate and be estimated.Fig. 4 illustrates the view of the photo of the steel plate of embodiment and comparative example after corrosion resistance test.
◎ corroded area rate: 0%
Zero corroded area rate: less than 5%
△ corroded area rate: 5%-30%
× corroded area rate: more than 30%
<assessment of seam welding property>
The corrosion resistance of composite coated steel plate be by utilize iron man's bonding machine (DC inversion seam welds machine) pressure to be 4kN, speed of welding be 3mpm, electric current application time be 33ms and intermittent time (resttime) for 10ms when welding composite coated steel plate measure weld zone and whether there is constant intensity assess without splash (spatter).The welding current scope that can weld composite coated steel plate as mentioned above is used as evaluation criteria.Fig. 3 is the chart of the scope that the seam welding electric current for embodiment and comparative example is described.
◎: 1.5kA or bigger
Zero: 1.0kA to less than 1.5kA
△: less than 1.0kA
[table 1]
E: embodiment, CE: comparative example, SC: silane compound, AR: acrylic resin, PSC: polysilicate compound, SSol: Ludox, TC: titanate compound, SS: stability of solution, CT: solidification temperature, CW: coat weight, DG: deterioration gasoline, DD: deterioration diesel oil, BE: bio-ethanol, BD: biodiesel, CR: corrosion resistance, SW: seam welds
Even if the organic-inorganic hybrid composition of the anticorrosive paint composition of embodiment 1-12 has be carried out the degree that curing reaction is extremely predetermined under the solidification temperature of 80 DEG C-120 DEG C.Therefore, as shown in table 1, the anticorrosive paint composition of embodiment 1-12 has high fuel resistance, corrosion resistance and seam welds.
Curing reaction including the acrylic resin in the anticorrosive paint composition of comparative example 1-3 is incomplete under the solidification temperature of 80 DEG C-120 DEG C, it is taken as that the anticorrosive paint composition of comparative example 1-3 has poor fuel resistance, corrosion resistance and seam welds.
As it has been described above, in accordance with an exemplary embodiment of the invention, for the anticorrosive paint composition of coated steel plates without harmful chromium, therefore it is harmless to the mankind.Additionally, anticorrosive paint composition has the stability of solution of height and low solidification temperature, therefore anticorrosive paint composition can be suitable for process of surface treatment.Additionally, there is high corrosion resistance and seam welds with the steel plate of anticorrosive paint composition process.
Although exemplary having been carried out described above and described, but the modifications and variations made under the scope of the present invention limited without departing substantially from claims having will be apparent to those skilled in the art.
Claims (12)
1. having a low-temperature curable anticorrosive paint composition for high corrosion resistance, described anticorrosive paint composition includes: the silane compound of 5wt%-30wt%, the polysilicate compound of 1wt%-10wt%, the titanium compound of 0.1wt%-5wt%, the wax of 0.1wt%-5wt%, 1wt%-15wt% the solvent for the alcohol of low-temperature setting and surplus.
2. anticorrosive paint composition according to claim 1, wherein said silane compound includes selecting at least one in free group consisting of: the condensation product of epoxy silane compounds, amino silane compounds, its hydrolyzate and hydrolyzate.
3. anticorrosive paint composition according to claim 1, wherein said silane compound is the mixture of amino silane compounds and epoxy silane compounds, and the mixing ratio of described amino silane compounds and described epoxy silane compounds is (1:0.2)-(1:10).
null4. anticorrosive paint composition according to claim 1，Wherein said silane compound includes selecting at least one in free group consisting of: vinyl methoxy silane、Vinyltrimethoxy silane、Vinyl epoxy silane、Vinyl three epoxy silane、3-aminopropyl three epoxy silane、3-glycydoxy trimethoxy silane、Glycydoxy trimethoxy silane between 3-、3-mercaptopropyl trimethoxysilane、N-(1,3-dimethylbutylene)-3-(three epoxy silanes)-1-propylamine、N,Double; two [3-(trimethoxysilyl) propyl group] ethylenediamine of N-、N-β (aminoethyl)-γ-aminopropyltrimethoxysilane、N-β (aminoethyl)-gamma-aminopropyl-triethoxy-silane、N-β (aminoethyl)-γ-aminopropyltriethoxy triethoxysilane、N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane、N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane、γ-glycydoxy triethoxysilane、γ-glycidyl ether oxygen base trimethyl dimethoxysilane、2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane、γ-methacryloxypropyl trimethoxy silane、γ-methacryloxypropyl、γ-mercaptopropyl trimethoxysilane、Gamma-mercaptopropyltriethoxysilane and N-[2-(vinyl benzyl amino) ethyl]-3-aminopropyl trimethoxysilane.
5. anticorrosive paint composition according to claim 1, wherein said polysilicate compound includes selecting at least one in free group consisting of: poly-lithium silicate, sodium polysilicate, polysilicon acid potassium and silica sol.
6. anticorrosive paint composition according to claim 1, wherein said titanium compound includes selecting at least one in free group consisting of: titanium carbonate, two (triethanolamine base) isopropyl titanate, titanium lactate chelate and titanium acetylacetone.
7. anticorrosive paint composition according to claim 1, wherein said wax includes polyethylene, politef or its mixture.
8. anticorrosive paint composition according to claim 1, the wherein said alcohol for low-temperature setting includes selecting at least one in free group consisting of: ethanol, propanol and isopropanol.
9. having a galvanized steel plain sheet for high corrosion resistance, described galvanized steel plain sheet includes
Steel plate；
Zinc coat, it is formed on the one or both sides of described steel plate；
Coat, it is formed on described zinc coat,
Wherein said coat is the cured product of the anticorrosive paint composition described in any one of claim 1-8.
10. galvanized steel plain sheet according to claim 9, the solidification temperature of wherein said anticorrosive paint composition is 50 DEG C-150 DEG C.
11. galvanized steel plain sheet according to claim 9, the weight of wherein said coat is 0.05g/m in the dry state2-2.0g/m2。
12. galvanized steel plain sheet according to claim 9, wherein said zinc coat includes electro-galvanized layer, dip galvanized, alloyed hot-dip zinc-coated layer or aluminum-zinc alloy coating.
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| KR10-2014-0188920 | 2014-12-24 | ||
| KR1020140188920A KR20160078773A (en) | 2014-12-24 | 2014-12-24 | Low temperature curable anti-corrosion coating composition excellent in corrosion resistance and zinc plated steel sheet using the same |
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| CN111699223A (en) * | 2017-11-28 | 2020-09-22 | 欧洲Nof金属涂层公司 | Solid form dehydration coating composition, method for producing same and method for rehydrating same |
| CN113416436A (en) * | 2021-06-28 | 2021-09-21 | 江苏睿中轨道交通装备有限公司 | Track anticorrosive coating and coating process thereof |
Families Citing this family (2)
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| KR101954135B1 (en) * | 2016-07-20 | 2019-03-06 | 강원대학교 산학협력단 | Organic/inorganic hybridized anticorrosive coating composition and preparation method thereof |
| KR101896011B1 (en) * | 2017-06-16 | 2018-09-06 | (주)넥스트에어로스 | Anti-corrision varnish composition and forming method for anti-corrision coating layer using the same |
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| KR20160078773A (en) | 2016-07-05 |
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