CN114989709A - Water-based precoated primer, coating and product with coating - Google Patents
Water-based precoated primer, coating and product with coating Download PDFInfo
- Publication number
- CN114989709A CN114989709A CN202210691910.3A CN202210691910A CN114989709A CN 114989709 A CN114989709 A CN 114989709A CN 202210691910 A CN202210691910 A CN 202210691910A CN 114989709 A CN114989709 A CN 114989709A
- Authority
- CN
- China
- Prior art keywords
- coating
- waterborne
- water
- primer
- polyurea
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 75
- 239000011248 coating agent Substances 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229920002396 Polyurea Polymers 0.000 claims abstract description 60
- 239000004593 Epoxy Substances 0.000 claims abstract description 38
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 33
- 229920002635 polyurethane Chemical group 0.000 claims abstract description 12
- 239000004814 polyurethane Chemical group 0.000 claims abstract description 12
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 26
- 229920000570 polyether Polymers 0.000 claims description 26
- 229920005862 polyol Polymers 0.000 claims description 25
- 150000003077 polyols Chemical class 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 16
- 239000012948 isocyanate Substances 0.000 claims description 15
- 150000002513 isocyanates Chemical class 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 230000000704 physical effect Effects 0.000 claims 1
- 239000002987 primer (paints) Substances 0.000 abstract description 79
- 229910000831 Steel Inorganic materials 0.000 abstract description 30
- 239000010959 steel Substances 0.000 abstract description 30
- 239000005002 finish coating Substances 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 17
- 239000000853 adhesive Substances 0.000 abstract description 13
- 230000001070 adhesive effect Effects 0.000 abstract description 13
- 238000005422 blasting Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 239000003973 paint Substances 0.000 abstract description 9
- 238000003466 welding Methods 0.000 description 17
- 238000005507 spraying Methods 0.000 description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002518 antifoaming agent Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 229910052755 nonmetal Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003472 neutralizing effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- -1 0.08 wt% Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004970 Chain extender Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013615 primer Substances 0.000 description 3
- 239000006254 rheological additive Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
-
- 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
- C09D5/24—Electrically-conducting paints
-
- 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
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a water-based precoated primer, a coating and a product with the coating, belonging to the technical field of coatings, wherein the water-based precoated primer is matched with polyurea finish paint for use, and comprises the following components: the first component comprises waterborne epoxy modified polyurethane resin, and the waterborne epoxy modified polyurethane resin contains epoxy groups and polyurethane groups. The waterborne epoxy modified polyurethane resin is used as a base material of the waterborne precoating primer provided by the invention, so that the adhesive force of the existing waterborne precoating primer and polyurea finish coating can be effectively improved; the polyurea finishing paint has good matching usability with the polyurea finishing paint, and can be applied to a steel shot blasting pretreatment process before polyurea finishing paint coating is carried out on steel.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based precoated primer, a water-based precoated coating and a product with the water-based precoated primer.
Background
The polyurea finish coat is a coating with excellent wear resistance and impact resistance, which is prepared by spraying a polyurea elastomer material, and has good application prospect on railway vehicles. When in application, the conventional method is to carry out shot blasting rust removal treatment at the steel blanking stage and spray a layer of water-based precoating primer so as to provide short-term protection for the steel surface.
The conventional pre-coating primer used at present mainly comprises water-based epoxy ester pre-coating primer, water-based inorganic zinc-rich pre-coating primer and the like, but in the prior art, the adhesion between the water-based pre-coating primer and a polyurea finish coating is poor.
Disclosure of Invention
The invention aims to provide a water-based pre-coating primer, a water-based pre-coating primer coating and a product with the water-based pre-coating primer coating, and can effectively solve the problem of poor adhesion of the conventional water-based pre-coating primer coating and a polyurea finish coating.
In a first aspect, embodiments of the present invention provide a waterborne shop primer for use with a polyurea topcoat, the waterborne shop primer comprising:
the first component comprises waterborne epoxy modified polyurethane resin, and the waterborne epoxy modified polyurethane resin contains epoxy groups and polyurethane groups.
Further, the waterborne epoxy modified polyurethane resin is obtained through a first chemical reaction, and the reaction raw materials of the first chemical reaction comprise, by weight: 15-65 parts of polyether polyol, 10-75 parts of isocyanate and 1-10 parts of epoxy resin.
Further, the first component further comprises: and (4) filling.
Further, the filler includes: silica micropowder, barium sulfate, and the like.
Further, the properties of the first component satisfy: the fineness is less than or equal to 30 mu m, and/or the viscosity is 2-10 Pa.S.
Further, the water-based shop primer further comprises:
and a second component comprising a metallic conductive material.
Further, the metal conductive substance is zinc powder.
Furthermore, the mass ratio of the first component to the second component is (5-10) to (2-5).
In a second aspect, embodiments of the present invention provide a coating, comprising:
a polyurea finish coat layer;
a primer layer comprising the aqueous shop primer according to any one of claims 1 to 8, the polyurea top coat layer being applied to a surface of the primer layer remote from the base substrate.
In a third aspect, embodiments of the present invention provide an article having a coating, the article comprising a substrate, and a coating adhered to at least a portion of a surface of the substrate, the coating being as described in the second aspect.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
the waterborne epoxy modified polyurethane resin provided by the embodiment of the invention comprises waterborne epoxy modified polyurethane resin, wherein the waterborne epoxy modified polyurethane resin formed by the reaction of polyether polyol, isocyanate and epoxy resin is used as a base material, and the waterborne epoxy modified polyurethane resin contains epoxy groups and polyurethane groups: on one hand, the epoxy group has good wettability and permeability to a steel substrate and strong adhesion; the polyurethane group contains isocyanate prepolymer similar to polyurea structure in the polyurea finish coating, has good molecular matching property with the polymer in the polyurea structure, good compatibility and high bonding strength, can generate anchoring and meshing effect with the polyurea finish coating, and enhances the adhesive force with the polyurea finish coating. Namely, the waterborne epoxy modified polyurethane resin is used as a base material of the waterborne precoating primer provided by the embodiment of the invention, so that the adhesive force of the existing waterborne precoating primer and the polyurea finish coating can be effectively improved.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
The polyurea finish coating is a coating which is prepared by spraying polyurea elastomer materials and has excellent wear resistance and impact resistance, and has good application prospect on railway vehicles. When in application, the conventional method is to adopt a surface treatment process of steel shot blasting pretreatment before polyurea finish coat coating is carried out on steel for railway vehicles, namely: the method comprises the steps of carrying out shot blasting rust removal treatment on steel in a blanking stage, and spraying a layer of weldable water-based pre-coating primer so as to provide short-term protection for the surface of the steel and prevent the steel from rusting during welding processing and assembling.
The conventional pre-coating primer used at present is mainly water-based epoxy ester pre-coating primer, water-based inorganic zinc-rich pre-coating primer and the like, but in the prior art, the adhesion between the water-based pre-coating primer and the polyurea finish coating is poor, so that the matching property or compatibility between the water-based pre-coating primer and the polyurea finish coating is poor. Particularly, the polyurea finish coating has short gel time, high curing speed and large surface tension, and has poor wetting ability and low adhesive force on the surfaces of substrates such as steel and the like and the existing water-based pre-coating primer, so that after the existing water-based pre-coating primer is adopted for steel shot blasting pretreatment and directly coated with the polyurea finish coating, the adhesive force of the whole coating system is low and the wear resistance and impact resistance of the polyurea finish coating are influenced to a certain extent. Therefore, the prior process flow of spraying the matched priming coating again is adopted for coating the polyurea coating on the railway vehicle, namely: performing shot blasting pretreatment on steel for railway vehicles → spraying conventional waterborne epoxy pre-coating primer → assembling and welding and forming a vehicle body → spraying and cleaning the surface of the vehicle body to remove the pre-coating primer → spraying a priming coating matched with the polyurea coating again → spraying the polyurea finish coating. The prior whole polyurea coating process has high cost and low efficiency.
In view of the above, the present application provides a water-based precoating primer and an application thereof, which can effectively solve the above problems in the existing water-based precoating primers.
In order to solve the technical problems, the embodiment of the invention provides the following general ideas: in one aspect, embodiments of the present invention provide a water-based shop primer for use with a polyurea topcoat, the water-based shop primer comprising:
the first component comprises waterborne epoxy modified polyurethane resin, and the waterborne epoxy modified polyurethane resin contains epoxy groups and polyurethane groups.
The waterborne epoxy modified polyurethane resin is used as a base material, and contains epoxy groups and polyurethane groups: on one hand, the epoxy group has good wettability and permeability to substrates such as steel and the like and strong adhesive force; the polyurethane group contains isocyanate prepolymer similar to polyurea structure in the polyurea finish coating, has good molecular matching property with the polymer in the polyurea structure, good compatibility and high bonding strength, can generate anchoring and meshing effect with the polyurea finish coating, and enhances the adhesive force with the polyurea finish coating. Namely, the waterborne epoxy modified polyurethane resin is used as a base material of the waterborne precoating primer provided by the embodiment of the invention, so that the adhesive force of the existing waterborne precoating primer and the polyurea finish coating can be effectively improved. Therefore, the water-based pre-coating primer provided by the embodiment of the invention is good in matching usability with the polyurea finish coating, and can be applied to a steel shot blasting pretreatment process before the polyurea finish coating is applied to steel.
As an implementation manner of the embodiment of the present invention, the waterborne epoxy modified polyurethane resin is obtained by a first chemical reaction, and the reaction raw materials of the first chemical reaction include, by weight: 15-65 parts of polyether polyol, 10-75 parts of isocyanate and 1-10 parts of epoxy resin.
The types of the polyether polyol, isocyanate and epoxy resin are not particularly limited, and it is only necessary that the resulting waterborne epoxy-modified polyurethane resin has an epoxy group and a polyurethane group. The polyether glycol, the isocyanate and the epoxy resin satisfy the range in parts by weight, namely: (15-65): (10-75): 1-10), the ratio of epoxy group and polyurethane group in the waterborne epoxy modified polyurethane resin is more suitable, and the adhesive force of the existing waterborne pre-coating primer and polyurea finish coating can be further effectively improved.
In some embodiments, the weight ratio of the polyether polyol, the isocyanate and the epoxy resin may be specifically 15:20:2, 20:30:3, 45:50:5, 60:70:8, and the like. The polyether polyols include, but are not limited to, polyether polyol N204, polyether polyol N210, polyether polyol N220, polyether polyol N240, polyether polyol N280, polyether polyol N303F, polyether polyol N305, polyether polyol N306, polyether polyol N307, polyether polyol N330, other suitable polyether polyols, or any mixture of the foregoing; the isocyanate is understood to be a general term for various esters of isocyanic acid, including monoisocyanates and diisocyanates, polyisocyanates and the like, and specifically may be toluene diisocyanate TDI-80, isocyanate MDI-50, other suitable isocyanates, or any mixture of the above compounds; the epoxy resin includes, but is not limited to, epoxy resin E44, epoxy resin E51, other suitable epoxy resins, solutions of the foregoing epoxy resins, or any mixture of the foregoing.
As an implementation manner of the embodiment of the present invention, the first component further includes: and (4) filling.
The filler can be properly added according to the water-based precoating primer disclosed in the prior art and actual needs, such as adding silicon micropowder, iron oxide red and the like, so that the corrosion resistance and the filling property of the water-based precoating primer are improved.
As an implementation manner of the embodiment of the present invention, the first component further includes: a non-metallic conductive substance.
The nonmetal conductive substance has the function of improving the conductivity of the water-based precoated primer after film formation, is beneficial to the subsequent welding processing and forming of steel, and effectively improves the weldability of the existing water-based precoated primer; specifically, the material can be graphene, carbon nanotubes or other non-metallic conductive materials.
As an implementation of the embodiment of the present invention, the property of the first component satisfies: the fineness is less than or equal to 30 mu m, and/or the viscosity is 2-10 Pa.S.
As an embodiment of the present invention, the water-based shop primer further includes:
and a second component comprising a metallic conductive material.
The second component comprises a metal conductive substance which is matched with the non-metal conductive substance in the first component, so that the conductivity of the water-based precoated primer after film formation is further improved, the water-based precoated primer can be directly welded on steel without removal, the water-based precoated primer is suitable for various manual welding and automatic welding processes, the mechanical property and the forming of a welding line are not influenced, no air holes are generated at the position of the welding line, and the problem of poor welding suitability of the existing water-based precoated primer is effectively solved.
As an embodiment of the present invention, the metal conductive substance is zinc powder.
The zinc powder has the functions of: on one hand, the problem of poor weldability of the existing water-based precoated primer can be effectively solved; on the other hand, the zinc powder plays a role in corrosion resistance, and under the action of the sacrificial anode, the zinc plays a role in sealing the coating to strengthen the protection of the steel substrate, so that the corrosion resistance of the water-based precoating primer is improved. The zinc powder can be greater than 800 mesh zinc powder.
As an implementation mode of the embodiment of the invention, the mass ratio of the first component to the second component is (5-10) to (2-5).
The mass ratio of the first component to the second component is controlled to be (5-10) to (2-5) because a paint film has good adhesive force, corrosion resistance and weldability and good matching property with a polyurea coating, the adverse effect of overlarge ratio is poor welding property, and the adverse effect of undersize ratio is poor adhesive force, poor corrosion resistance and poor matching property with the polyurea coating. The mass ratio of the first component to the second component may be 5:2, 7:2, 7:3, 8:3, 10:3, etc., preferably 7: 3.
It should be noted that:
(1) the reaction process of the first chemical reaction may be properly added with a neutralizer and a catalyst according to the conventional synthesis method of the waterborne epoxy modified polyurethane resin in the prior art and actual needs, and the neutralizer is not particularly limited. The neutralizing agent is only used for neutralizing the obtained product waterborne epoxy modified polyurethane resin into salt, so that the subsequent storage is facilitated; the catalyst is for initiating the reaction and may be selected from, for example, dibutyltin dilaurate. The dosage of the neutralizer and the catalyst can be properly selected according to the dosage of the reaction raw materials, and the polyether polyol, the isocyanate and the epoxy resin can be promoted to react to generate the waterborne epoxy modified polyurethane resin. If the amount of the polyether polyol as the reaction raw material is used as a base, the amount of the catalyst may be 0.005-0.1 wt% of the amount of the polyether polyol, such as 0.08 wt%, 0.01 wt%, 0.011 wt%, 0.05 wt%, 0.08 wt%, etc.; the amount of the neutralizing agent is 0.005-0.1 wt% of the amount of the polyether polyol, such as 0.08 wt%, 0.01 wt%, 0.011 wt%, 0.05 wt%, 0.08 wt%, etc.
In addition, a chain extender and an end-capping reagent can be added into the reaction conditions of the first chemical reaction to further modify the waterborne epoxy modified polyurethane resin, the types of the chain extender and the end-capping reagent used are not particularly limited, and the chain extender and the end-capping reagent only need to enable the waterborne epoxy modified polyurethane resin to still retain epoxy groups and polyurethane groups. The reaction temperature and the reaction duration can also be properly selected according to the disclosure of the conventional synthesis method of the waterborne epoxy modified polyurethane resin in the prior art, for example, the reaction temperature is selected to be 75-90 ℃, and specifically can be 75 ℃, 78 ℃, 80 ℃, 81 ℃, 82 ℃, 85 ℃, 88 ℃, 90 ℃ and the like; the reaction time is 2-5 h, specifically 2h, 2.5h, 3h, 3.5h, 4h, 5h and the like.
(2) The first component can be properly added with an auxiliary agent, a solvent and other fillers except non-metallic conductive substances according to the water-based pre-coating primer disclosed in the prior art and actual needs, so that the water-based epoxy modified polyurethane resin base material can be uniformly dispersed in the solvent, and the convenience and operability of spraying the water-based pre-coating primer are improved. Preferably, the auxiliary agents comprise a dispersing agent, a defoaming agent and a rheological auxiliary agent, and the filler except the non-metal conductive substance also comprises silicon micropowder and iron oxide red.
Based on the same inventive concept, the embodiment of the present invention further provides a coating, including:
a polyurea finish coat layer;
the primer layer comprises the waterborne precoating primer, and the polyurea finish paint layer is coated on the surface of the primer layer, which is far away from the base substrate.
On one hand, the primer layer comprising the water-based pre-coating primer has excellent adhesion and corrosion resistance with a base material such as steel; on the other hand, the primer layer and the polyurea finish layer have excellent adhesion and compatibility. Therefore, when the coating is integrally applied to a base substrate such as steel and the like, the coating not only has the performances of excellent wear resistance, impact resistance and the like brought by a polyurea finish paint layer, but also has excellent adhesive force of the whole coating system, and particularly can reach more than 8 MPa.
Embodiments of the present invention also provide an article having a coating, the article comprising a substrate and a coating attached to at least a portion of a surface of the substrate, the coating being the coating of the second aspect.
The water-based precoated primer provided by the embodiment of the invention is matched with the polyurea finish paint for use, so that when the water-based precoated primer is applied as an anticorrosive coating on steel substrates and ceramic substrates, the existing process flow can be simplified, the production efficiency is improved, and the production cost is reduced. In some specific embodiments, as in the process of applying the polyurea finish coating to the railway vehicle, compared with the conventional process of applying the polyurea finish coating to the railway vehicle, after the assembly welding and forming of the vehicle body, the vehicle body does not need to be cleaned to remove the pre-primer and sprayed with a primer layer matched with the polyurea finish coating again, namely: steel shot blasting pretreatment → spraying of the waterborne precoated primer provided by the embodiment of the invention → vehicle body assembly and welding molding → vehicle body surface oil removal, dust removal and cleaning → spraying of polyurea finish coating. The process flow is simplified, the coating efficiency of the polyurea coating of the railway wagon is improved, and the cost is reduced.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental methods of the following examples, which are not specified under specific conditions, are generally determined according to national standards. If there is no corresponding national standard, it is carried out according to the usual international standards, to the conventional conditions or to the conditions recommended by the manufacturer.
Example 1
Preparing a water-based shop primer comprising:
preparing waterborne epoxy modified polyurethane resin:
adding dried polyether polyol N220(45 parts) into a flask, putting the flask into an electronic constant-temperature water bath kettle, keeping the temperature at 80 ℃ unchanged, and opening nitrogen for protection; then dripping isocyanate MDI-50(50 parts) into the flask after the temperature of the polyether polyol is 80 ℃, adding epoxy resin E44 (5 parts) dissolved in N-methyl pyrrolidone (2 parts) after reacting for a period of time, and stirring at constant speed; then adding dibutyltin dilaurate (0.5 part), raising the temperature to 85 ℃, and uniformly stirring for 3 hours; after the reaction is finished, cooling to room temperature, adding a neutralizing agent triethylamine (1 part), stirring at the rotating speed of 1000-1200 r/min for 30min, shearing, emulsifying, and dispersing in an ethylene diamine aqueous solution to obtain the waterborne epoxy modified polyurethane resin.
Preparing a first component:
sequentially putting the prepared waterborne epoxy modified polyurethane resin (20 parts), deionized water (15 parts), a dispersing agent (1 part), a defoaming agent (0.2 part), a nonmetal conductive substance (0.2 part), silicon micropowder (5 parts) and iron oxide red (10 parts) into a dispersing tank in parts by mass, uniformly dispersing the materials, and then grinding the materials until the fineness is less than or equal to 30 mu m; then adding rheological additive (0.2 part) into the ground material, uniformly stirring, filtering to remove impurities, adjusting the viscosity of the filtered material to 2-10 Pa.S, filtering again to remove impurities, and discharging to obtain a first group of components; wherein the dispersant is a polymeric non-ionic aqueous dispersant such as ADDITTOL VXW 6208/60; the defoaming agent is a silicone aqueous defoaming agent, such as silicone defoaming agent F-202; the rheological additive is associative polyurethane thickener, such as RHEOLATE299 aqueous rheological additive; the non-metal conductive substance is graphene powder.
Preparing a second component:
the second component is a 1000 mesh zinc powder (100 parts) canned product, purchased directly from new-Weiling metal new materials science and technology Co., Ltd, Hunan province.
The mass ratio of the first component to the second component in the water-based pre-coating primer is 5: 2.
When the water-based pre-coating primer provided by the embodiment is used for construction, the water-based pre-coating primer can be applied to a base material such as steel by adopting a mode such as airless spraying, brushing, roller coating and the like, and is solidified into a film at the temperature of 5-35 ℃, and the thickness of the dry film after the film is formed is controlled within 20 mu m. The drying time is less than or equal to 5 minutes, and the production rhythm of the shot blasting pretreatment production line can be met; green and environment-friendly, and the VOC content is lower than 100 g/L.
Examples 2 to 8 are the same as the method of preparing the water based shop primer of example 1 except that: 1) the mass ratios of the polyether polyol m1, the isocyanate m2, and the epoxy resin m3 in the aqueous epoxy modified polyurethane resin used in examples 2 to 4 were 15:20:2(15 parts by mass: 20 parts by mass: 2 parts by mass), 20:30:3(20 parts by mass: 30 parts by mass: 3 parts by mass), and 60:70:8(60 parts by mass: 70 parts by mass: 8 parts by mass), respectively; the mass ratio of the first component to the second component in example 3 was 7: 2; 2) the mass ratios of the aqueous epoxy modified urethane resin, the deionized water and the non-metallic conductive substance in the first components used in examples 5 to 7 were 30:20:20(30 parts by mass: 20 parts by mass), 40:22:48(40 parts by mass: 22 parts by mass: 48 parts by mass) and 60:25:60(60 parts by mass: 25 parts by mass: 60 parts by mass), respectively; the mass ratio of the first component to the second component in example 6 was 7: 3; the mass ratio of the first component to the second component in example 7 is 8: 3; 3) the mass ratio of the first component to the second component in example 8 was 10: 3.
Comparative example 1
This example provides a waterborne epoxy shop primer that differs from example 1 only in that: adjusting the used waterborne epoxy modified polyurethane resin (20 parts) into a commercially available waterborne epoxy phosphate ester resin and a commercially available waterborne acrylic modified epoxy resin with the mass part ratio of 2: 1; the rest steps and parameters are the same.
Test examples
The embodiment applies the water-based precoated primer prepared in the embodiment 1-9 to the process of spraying the polyurea coating after the steel shot blasting pretreatment for the railway vehicle, and comprises the following steps:
performing shot blasting pretreatment on steel for railway vehicles;
respectively spraying the water-based precoating primers prepared in the embodiments 1 to 9 on the surface of the treated steel material for the railway vehicle, and controlling the thickness of a dry film within 20 mu m after curing and film forming;
carrying out vehicle body assembly welding molding on the steel for the railway vehicle after being sprayed with the water-based precoating primer;
degreasing and dedusting the surface of a vehicle body, and spraying a polyurea finish coating (the type of polyurea coating is Rumon brand-SPUA 906);
and (3) carrying out overall performance detection on the obtained coating, wherein the adhesion test refers to a GB/T5210 medium pull-open method, the neutral salt spray resistance test refers to GB/T1771, and the wear resistance test refers to GB/T1768-one 2006.
Specific data are shown in table 1.
TABLE 1 coating integrity test results
As can be seen from Table 1, the waterborne precoated primer and the polyurea finish paint have good matching property or adaptability; meanwhile, after the water-based precoated primer is used for steel shot blasting pretreatment and polyurea finish coating is coated, the adhesive force of the whole coating system is not lower than 8MPa, and the overall performances such as wear resistance and the like are good. Meanwhile, the water-based precoated primer meets the requirements of high drying speed and good weldability of the precoated primer: in the aspect of drying speed, the actual drying time is less than or equal to 5 minutes, the production rhythm of a shot blasting pretreatment production line can be met, and steel can be directly stacked after being offline; in terms of weldability, the thickness of the dry film is controlled within 20 mu m, the welding wire can adapt to various manual welding and automatic welding processes, the mechanical property and the forming of a welding line are not influenced, and pores are not generated at the position of the welding line. Green and environment-friendly: the VOC content in the coating is not more than 100 g/L.
Finally, it is further noted that, herein, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A waterborne shop primer for use with a polyurea topcoat, the waterborne shop primer comprising:
the first component comprises waterborne epoxy modified polyurethane resin, and the waterborne epoxy modified polyurethane resin contains epoxy groups and polyurethane groups.
2. The waterborne shop primer according to claim 1, wherein the waterborne epoxy modified polyurethane resin is obtained by a first chemical reaction, and the reaction raw materials of the first chemical reaction comprise, in parts by weight: 15-65 parts of polyether polyol, 10-75 parts of isocyanate and 1-10 parts of epoxy resin.
3. The waterborne shop primer according to claim 1, wherein the first component further comprises: and (4) filling.
4. The waterborne shop primer according to claim 3, wherein the filler comprises: a non-metallic conductive substance.
5. The water-based shop primer according to claim 1, wherein the physical properties of the first component satisfy: the fineness is less than or equal to 30 mu m, and/or the viscosity is 2-10 Pa.S.
6. The water-based shop primer according to any one of claims 1 to 5, further comprising:
and a second component comprising a metallic conductive material.
7. The water-based shop primer according to claim 6, wherein the metallic conductive substance is zinc powder.
8. The water-based shop primer according to claim 6, wherein the mass ratio of the first component to the second component is (5-10) to (2-5).
9. A coating, comprising:
a polyurea finish coat layer;
a primer layer comprising the aqueous shop primer according to any one of claims 1 to 8, the polyurea top coat layer being applied to a surface of the primer layer remote from the base substrate.
10. An article having a coating, the article comprising a substrate and a coating adhered to at least a portion of a surface of the substrate, wherein the coating is the coating of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691910.3A CN114989709B (en) | 2022-06-17 | 2022-06-17 | Water-based precoating primer, coating and product with coating |
| PCT/CN2022/137278 WO2023240946A1 (en) | 2022-06-17 | 2022-12-07 | Water-based prefabrication primer, coating, and product with coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691910.3A CN114989709B (en) | 2022-06-17 | 2022-06-17 | Water-based precoating primer, coating and product with coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114989709A true CN114989709A (en) | 2022-09-02 |
| CN114989709B CN114989709B (en) | 2023-10-24 |
Family
ID=83035936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210691910.3A Active CN114989709B (en) | 2022-06-17 | 2022-06-17 | Water-based precoating primer, coating and product with coating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114989709B (en) |
| WO (1) | WO2023240946A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023240946A1 (en) * | 2022-06-17 | 2023-12-21 | 中车株洲车辆有限公司 | Water-based prefabrication primer, coating, and product with coating |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006198879A (en) * | 2005-01-20 | 2006-08-03 | Sumitomo Metal Ind Ltd | Coated steel sheet excellent in weatherability and corrosion resistance |
| CN101649156A (en) * | 2008-08-12 | 2010-02-17 | 日本帕卡濑精株式会社 | Aqueous coating substrate treating agent double as primer, surface treatment metallic material and pre-coating metallic material |
| JP2010241400A (en) * | 2009-04-10 | 2010-10-28 | Takashi Sadamasu | Vehicular floor material and coating method of the same |
| CN102676029A (en) * | 2012-06-07 | 2012-09-19 | 青岛海洋新材料科技有限公司 | Polyurethane anti-corrosion priming paint sprayed on steel structure in abyssal environment |
| CN107699122A (en) * | 2017-10-27 | 2018-02-16 | 安徽海程铁路器材科技有限公司 | A kind of watersoluble closed dose of preparation method of railway elastic bar |
| CN107779064A (en) * | 2016-08-27 | 2018-03-09 | 宜兴市星洲复合材料有限公司 | A kind of preparation method of Novel steel polyureas cage guide and buntons |
| CN109796846A (en) * | 2019-01-22 | 2019-05-24 | 信和新材料股份有限公司 | A kind of high conductivity based on conducing composite material can weld shop primer and preparation method thereof |
| CN110066593A (en) * | 2019-03-14 | 2019-07-30 | 广西经正科技开发有限责任公司 | A kind of epoxy resin modification polyurethane anticorrosion water paint and preparation method thereof |
| JP2020165136A (en) * | 2019-03-28 | 2020-10-08 | 東京電力ホールディングス株式会社 | Rust preventive repair method for steel material, rust preventive repair method for steel tower, and rust preventive repair steel material |
| CN212537147U (en) * | 2020-01-10 | 2021-02-12 | 中海石油（中国）有限公司天津分公司 | Pipeline with anticorrosion structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005187683A (en) * | 2003-12-26 | 2005-07-14 | Mitsui Kagaku Sanshi Kk | Primer for resin coating film |
| CN101985540A (en) * | 2009-07-28 | 2011-03-16 | 海洋化工研究院 | Preservative primer used for ocean steel structure spray polyurea |
| CN103820017B (en) * | 2014-02-28 | 2017-04-19 | 北京东方雨虹防水技术股份有限公司 | Epoxy modified polyurethane primer and preparation method thereof |
| EP3480261A1 (en) * | 2017-11-03 | 2019-05-08 | PPG Industries Ohio, Inc. | Aqueous coating compositions and processes of forming multi-component composite coatings on substrates |
| CN114989709B (en) * | 2022-06-17 | 2023-10-24 | 中车株洲车辆有限公司 | Water-based precoating primer, coating and product with coating |
-
2022
- 2022-06-17 CN CN202210691910.3A patent/CN114989709B/en active Active
- 2022-12-07 WO PCT/CN2022/137278 patent/WO2023240946A1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006198879A (en) * | 2005-01-20 | 2006-08-03 | Sumitomo Metal Ind Ltd | Coated steel sheet excellent in weatherability and corrosion resistance |
| CN101649156A (en) * | 2008-08-12 | 2010-02-17 | 日本帕卡濑精株式会社 | Aqueous coating substrate treating agent double as primer, surface treatment metallic material and pre-coating metallic material |
| JP2010241400A (en) * | 2009-04-10 | 2010-10-28 | Takashi Sadamasu | Vehicular floor material and coating method of the same |
| CN102676029A (en) * | 2012-06-07 | 2012-09-19 | 青岛海洋新材料科技有限公司 | Polyurethane anti-corrosion priming paint sprayed on steel structure in abyssal environment |
| CN107779064A (en) * | 2016-08-27 | 2018-03-09 | 宜兴市星洲复合材料有限公司 | A kind of preparation method of Novel steel polyureas cage guide and buntons |
| CN107699122A (en) * | 2017-10-27 | 2018-02-16 | 安徽海程铁路器材科技有限公司 | A kind of watersoluble closed dose of preparation method of railway elastic bar |
| CN109796846A (en) * | 2019-01-22 | 2019-05-24 | 信和新材料股份有限公司 | A kind of high conductivity based on conducing composite material can weld shop primer and preparation method thereof |
| CN110066593A (en) * | 2019-03-14 | 2019-07-30 | 广西经正科技开发有限责任公司 | A kind of epoxy resin modification polyurethane anticorrosion water paint and preparation method thereof |
| JP2020165136A (en) * | 2019-03-28 | 2020-10-08 | 東京電力ホールディングス株式会社 | Rust preventive repair method for steel material, rust preventive repair method for steel tower, and rust preventive repair steel material |
| CN212537147U (en) * | 2020-01-10 | 2021-02-12 | 中海石油（中国）有限公司天津分公司 | Pipeline with anticorrosion structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023240946A1 (en) * | 2022-06-17 | 2023-12-21 | 中车株洲车辆有限公司 | Water-based prefabrication primer, coating, and product with coating |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023240946A1 (en) | 2023-12-21 |
| CN114989709B (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2567341C (en) | Process for applying multi-component composite coatings to substrates to provide sound damping and print-through resistance | |
| US4888244A (en) | Process for forming composite coated film | |
| KR101191006B1 (en) | Polyurethane coatings with improved interlayer adhesion | |
| RU2692788C1 (en) | Flexible non-chromate anticorrosive primer | |
| EP1158035A1 (en) | Acrylic sol for a sound insulating underbody coating | |
| CN114989709A (en) | Water-based precoated primer, coating and product with coating | |
| JP2000265111A (en) | Aqueous surface treating agent for metal material and surface treated metal plate | |
| WO2024045368A1 (en) | Single-component high-permeability anticorrosive paint for rusty surface, and preparation method therefor and use thereof | |
| CN111511845B (en) | Primer coating and articles coated therewith | |
| KR20010035294A (en) | Coating paint being dried speedly for rust proofing | |
| JP6680448B1 (en) | Multi-layer coating method | |
| JP4347928B2 (en) | Flexibility-imparting resin for electrodeposition paint | |
| JP3366153B2 (en) | Vinyl chloride plastisol composition | |
| JP3541044B2 (en) | Interlayer chipping paint for automobiles | |
| JP3556092B2 (en) | Primer composition for steel corrosion protection | |
| CA2106254A1 (en) | Atomizable and sprayable lacquer, coating and sealing compositions containing synthetic resin powder as fillers | |
| CN109134815A (en) | A kind of hard section contains two kinds of heteroatomic polyurethane elastomers, modified polyurethane anticorrosion peelable film and its preparation method and application | |
| JPH04219177A (en) | Coating method on steel sheet | |
| JP5627995B2 (en) | Method for forming chipping-resistant multi-painted coating on automobile body | |
| JP2006247614A (en) | Method for forming multilayer coating film | |
| JPS63245477A (en) | Moisture-curing primer composition for prevention of steel corrosion | |
| JPH04122474A (en) | Coating of vehicular outer panel part | |
| JPS63242381A (en) | Improved heavy-duty anticorrosion painting method | |
| CN116829653A (en) | Coating compositions and methods comprising carbodiimide | |
| CN116855163A (en) | Flexible pressure-sensitive color-changing anti-corrosion primer, preparation method and application thereof, and intelligent threaded fastener with visible fastening degree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |