CN113980523A - Color-changeable can-making water-based paint and preparation method thereof - Google Patents
Color-changeable can-making water-based paint and preparation method thereof Download PDFInfo
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- CN113980523A CN113980523A CN202111439576.4A CN202111439576A CN113980523A CN 113980523 A CN113980523 A CN 113980523A CN 202111439576 A CN202111439576 A CN 202111439576A CN 113980523 A CN113980523 A CN 113980523A
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- 239000003973 paint Substances 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 54
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 25
- 239000000080 wetting agent Substances 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 239000003085 diluting agent Substances 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 30
- 239000011259 mixed solution Substances 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- -1 polysiloxane Polymers 0.000 claims description 14
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 150000002596 lactones Chemical class 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- IVQGJZCJWJVSJX-UHFFFAOYSA-N 5-phenylbenzene-1,2,3-triol Chemical compound OC1=C(O)C(O)=CC(C=2C=CC=CC=2)=C1 IVQGJZCJWJVSJX-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical group 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 150000003376 silicon Chemical class 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- MQOFFKNNIBZAQJ-UHFFFAOYSA-N C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.C1(=CC=CC=C1)C1=CC=CC=C1 Chemical compound C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.C1(=CC=CC=C1)C1=CC=CC=C1 MQOFFKNNIBZAQJ-UHFFFAOYSA-N 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000008235 industrial water Substances 0.000 abstract 1
- 230000008719 thickening Effects 0.000 abstract 1
- 239000003607 modifier Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000006115 industrial coating Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C09D5/26—Thermosensitive 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a color-changeable can-making water-based paint and a preparation method thereof, relates to the technical field of industrial water-based paints, and particularly relates to a color-changeable can-making water-based paint and a preparation method thereof, wherein the color-changeable can-making water-based paint comprises the following raw materials in parts by weight: 40-60 parts of waterborne fluorocarbon resin, 10-30 parts of solvent, 6-18 parts of filler, 2-8 parts of thickener, 2-10 parts of diluent, 1-5 parts of defoaming agent, 2-10 parts of curing agent, 1-5 parts of pigment, 10-30 parts of thermal color-changing agent, 5-20 parts of wetting agent and 5-15 parts of dispersing agent. The water-based paint prepared by the invention can effectively improve the glossiness and the adhesive capacity of the paint during spraying by adding the wetting agent, and the introduction of the dispersing agent can reduce the phenomena of layering and color paste thickening of the paint and improve the quality of the paint.
Description
Technical Field
The invention relates to the technical field of water-based industrial coatings, in particular to a color-changeable can-making water-based coating and a preparation method thereof.
Background
With the serious problem of environmental pollution and the shortage of petroleum resources, research and development of water-based coatings have attracted people's attention and have a very broad development prospect. The existing water-based metal paint generally has the problems of short corrosion prevention period, high requirement on coating surface treatment, poor dispersion stability of pigments and fillers, coating and the like.
Disclosure of Invention
The invention aims to provide a tinplate water-based paint capable of changing color and a preparation method thereof aiming at the defects of the prior art so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the color-changeable water-based paint for can making comprises the following raw materials in parts by weight: 40-60 parts of waterborne fluorocarbon resin, 10-30 parts of solvent, 6-18 parts of filler, 2-8 parts of thickener, 2-10 parts of diluent, 1-5 parts of defoaming agent, 2-10 parts of curing agent, 1-5 parts of pigment, 10-30 parts of thermal color-changing agent, 5-20 parts of wetting agent and 5-15 parts of dispersing agent.
As a preferable technical scheme of the invention, the color-changeable water-based paint for can making comprises the following raw materials in parts by weight: 40-55 parts of water-based fluorocarbon resin, 10-20 parts of solvent, 6-15 parts of filler, 2-6 parts of thickening agent, 2-8 parts of diluent, 2-5 parts of defoaming agent, 2-8 parts of curing agent, 2-5 parts of pigment, 10-20 parts of thermal color-changing agent, 5-15 parts of wetting agent and 5-10 parts of dispersing agent.
As a preferable technical scheme of the invention, the color-changeable water-based paint for can making comprises the following raw materials in parts by weight: 50 parts of waterborne fluorocarbon resin, 15 parts of solvent, 10 parts of filler, 4 parts of thickener, 4 parts of diluent, 3 parts of defoaming agent, 5 parts of curing agent, 5 parts of pigment, 15 parts of thermochromic agent, 10 parts of wetting agent and 5 parts of dispersing agent.
As a preferred technical scheme of the invention, the color filler is one or more of titanium dioxide, pigment carbon black, scarlet powder, phthalocyanine green and superfine talcum powder, and the filler is one of nano glass flakes, stainless steel flakes or mica flakes.
As a preferable technical scheme of the invention, the defoaming agent is one of polyether defoaming agent, organic silicon defoaming agent, polyether modified silicon vial defoaming agent or polysiloxane defoaming agent, and the curing agent is amine modified curing agent.
As a preferable technical scheme of the invention, the wetting agent is a multi-branched alcohol modified surfactant, in particular to an acetylene glycol polyoxyethylene ether surfactant.
As a preferred embodiment of the present invention, the thermochromic agent is prepared by the following method: adding a certain amount of crystal naphthol disulfonic acid lactone and biphenyltriol into a grinder, grinding, stirring and mixing continuously, and simultaneously adding glycidyl ester into the grinder to obtain the thermochromic agent.
As a preferable technical scheme of the invention, the mass ratio of the crystal naphthol disulfonic acid lactone, the biphenyltrisphenol and the glycidyl ester is 1: 2-1:3-25.
The invention also provides a preparation method of the color-changeable can-making water-based paint, which comprises the following steps:
s1, mixing 40-60 parts of aqueous fluorocarbon resin and 10-30 parts of solvent, adding 10-30 parts of thermochromic agent, pouring into a stirrer, and stirring at the speed of 1000-;
s2, adding 6-18 parts of filler and 1-5 parts of pigment into the mixed solution a, adding 5-15 parts of dispersing agent in a continuous stirring mode, fully stirring until the coating is not obviously layered, then adding 5-20 parts of wetting agent, stirring for 15-30 minutes to ensure uniform mixing, if the viscosity of the solution rises, properly heating to reduce the viscosity, and then adding 1-5 parts of defoaming agent to obtain mixed solution b;
and S3, adding the mixed solution b and 2-10 parts of the curing agent into the reaction kettle simultaneously, stirring the mixed solution and the curing agent until the curing agent is completely mixed, heating the mixed solution to 90 ℃ for 30 minutes to obtain the color-changeable water-based paint for can making, and adding 2-10 parts of the diluent into the water-based paint when in use.
Compared with the prior art, the invention provides the color-changeable can-making water-based paint and the preparation method thereof, and the color-changeable can-making water-based paint has the following beneficial effects:
1. in the preparation method, the wetting agent, the dispersing agent and the thermal color changing agent are introduced, the wetting agent can effectively remove foams in the water-based industrial coating, can not eliminate the phenomena of pinholes, fish eyes, craters and the like which can cause film coating in time, the effect of reducing the surface defects of the coating is reduced, the surface gloss and the adhesive capacity of the coating during spraying are improved, meanwhile, the addition of the dispersing agent can reduce the conditions of color and filler layering and color paste coarseness in the coating, and the addition of the thermal color changing agent can be used for detecting the state of the coating after spraying, when the temperature of a sprayed base surface is overhigh, the thermal color changing agent is changed into blue when encountering high temperature, the phenomenon of swelling and falling of the coating caused by overhigh temperature of the base surface after spraying can be reduced, and the waste of the coating is reduced.
Drawings
FIG. 1 is a schematic representation of the surface tension profile of a coating after the addition of a wetting agent according to the invention;
FIG. 2 is a graphical representation of the foaming rate profile of a coating after the addition of a wetting agent of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides a color-changeable can-making water-based paint which comprises the following raw materials in parts by weight: 40 parts of waterborne fluorocarbon resin, 10 parts of solvent, 10 parts of filler, 4 parts of thickener, 4 parts of diluent, 3 parts of defoaming agent, 2 parts of curing agent, 5 parts of pigment, 10 parts of thermal color-changing agent and 5 parts of wetting agent.
Wherein the heat modifier is prepared by the following method: adding a certain amount of crystal naphthol disulfonic acid lactone and biphenyltriol into a grinder, grinding and stirring and mixing continuously, and simultaneously adding glycidyl ester into the grinder to obtain the thermochromic agent, wherein the mass ratio of the crystal naphthol disulfonic acid lactone to the biphenyltriol to the glycidyl ester is 1-2-25.
The invention also provides a preparation method of the color-changeable can-making water-based paint, which comprises the following steps:
s1, mixing 40 parts of aqueous fluorocarbon resin and 10 parts of solvent, adding 10 parts of thermochromic agent, pouring into a stirrer, stirring at the speed of 1000-1500/min until the solution is transparent, and adding 4 parts of thickening agent to mix to obtain a mixed solution a;
s2, adding 10 parts of fully ground filler and 5 parts of pigment into the mixed solution a, adding 5 parts of dispersing agent in a continuous stirring mode, fully stirring until the coating is not obviously layered, then adding 10 parts of wetting agent, stirring for 15-30 minutes to ensure uniform mixing, if the viscosity of the solution rises, properly heating to reduce the viscosity, and then adding 3 parts of defoaming agent to obtain mixed solution b;
and S3, adding the mixed solution b and 2 parts of curing agent into the reaction kettle simultaneously, stirring the mixed solution b and the curing agent until the curing agent is completely mixed, heating the mixed solution to 90 ℃ for 30 minutes to obtain the color-changeable water-based paint for can making, and adding 4 parts of diluent into the water-based paint when in use.
Example two:
the invention provides a color-changeable can-making water-based paint which comprises the following raw materials in parts by weight: 50 parts of waterborne fluorocarbon resin, 15 parts of solvent, 10 parts of filler, 4 parts of thickening agent, 4 parts of diluent, 3 parts of defoaming agent, 3 parts of curing agent, 5 parts of pigment, 15 parts of thermochromic agent and 10 parts of wetting agent.
Wherein the heat modifier is prepared by the following method: adding a certain amount of crystal naphthol disulfonic acid lactone and biphenyltriol into a grinder, grinding and stirring and mixing continuously, and simultaneously adding glycidyl ester into the grinder to obtain the thermochromic agent, wherein the mass ratio of the crystal naphthol disulfonic acid lactone to the biphenyltriol to the glycidyl ester is 2-3-25.
The invention also provides a preparation method of the color-changeable can-making water-based paint, which comprises the following steps:
s1, mixing 50 parts of aqueous fluorocarbon resin and 15 parts of solvent, adding 15 parts of thermochromic agent, pouring into a stirrer, stirring at the speed of 1000-1500/min until the solution is transparent, and adding 4 parts of thickener to mix to obtain a mixed solution a;
s2, adding 10 parts of fully ground filler and 5 parts of pigment into the mixed solution a, adding 7.5 parts of dispersing agent in a continuous stirring mode, fully stirring until the coating is not obviously layered, then adding 15 parts of wetting agent, stirring for 15-30 minutes to ensure uniform mixing, if the viscosity of the solution rises, properly heating to reduce the viscosity, and then adding 3 parts of defoaming agent to obtain mixed solution b;
and S3, adding the mixed solution b and 3 parts of curing agent into the reaction kettle simultaneously, stirring the mixed solution b and the curing agent until the curing agent is completely mixed, heating the mixed solution to 90 ℃ at the moment, and keeping the temperature for 30 minutes to obtain the color-changeable water-based paint for can making, wherein 4 parts of diluent can be added into the water-based paint when the color-changeable water-based paint is used.
Example three:
the invention provides a color-changeable can-making water-based paint which comprises the following raw materials in parts by weight: 60 parts of waterborne fluorocarbon resin, 20 parts of solvent, 10 parts of filler, 4 parts of thickener, 4 parts of diluent, 3 parts of defoaming agent, 4 parts of curing agent, 5 parts of pigment, 20 parts of thermochromic agent and 15 parts of wetting agent.
Wherein the heat modifier is prepared by the following method: adding a certain amount of crystal naphthol disulfonic acid lactone and biphenyltriol into a grinder, grinding and stirring and mixing continuously, and simultaneously adding glycidyl ester into the grinder to obtain the thermochromic agent, wherein the mass ratio of the crystal naphthol disulfonic acid lactone to the biphenyltriol to the glycidyl ester is 1-1-25.
The invention also provides a preparation method of the color-changeable can-making water-based paint, which comprises the following steps:
s1, mixing 60 parts of aqueous fluorocarbon resin and 20 parts of solvent, adding 20 parts of thermochromic agent, pouring into a stirrer, stirring at the speed of 1000-1500/min until the solution is transparent, and adding 4 parts of thickener to mix to obtain a mixed solution a;
s2, adding 10 parts of fully ground filler and 5 parts of pigment into the mixed solution a, adding 10 parts of dispersing agent in a continuous stirring mode, fully stirring until the coating is not obviously layered, then adding 20 parts of wetting agent, stirring for 15-30 minutes to ensure uniform mixing, if the viscosity of the solution rises, properly heating to reduce the viscosity, and then adding 3 parts of defoaming agent to obtain mixed solution b;
and S3, adding the mixed solution b and 4 parts of curing agent into the reaction kettle simultaneously, stirring the mixed solution b and the curing agent until the curing agent is completely mixed, heating the mixed solution to 90 ℃ at the moment, and keeping the temperature for 30 minutes to obtain the color-changeable water-based paint for can making, wherein 4 parts of diluent can be added into the water-based paint through the viscosity of the water-based paint when the water-based paint is used.
A part of the color-changeable water-based paint for can making prepared in the first to third embodiments of the invention is taken out to be tested as follows:
referring to fig. 1-2, it can be seen that the surface tension and foaming rate of the paint containing the wetting agent in the water-based paint for cans, which can be discolored, according to the first to third embodiments of the present invention are significantly reduced.
Attached table 1
As can be seen from the comparison of the above table, the color-changeable water-based paint for can making prepared in the first embodiment and the second embodiment of the invention has better preservation performance compared with the existing water-based paint, and meanwhile, the layering and color paste anti-coarsening phenomena of the paint are slightly reduced, and meanwhile, the adhesive force of the paint is greatly enhanced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The color-changeable can-making water-based paint is characterized in that: the feed comprises the following raw materials in parts by weight: 40-60 parts of waterborne fluorocarbon resin, 10-30 parts of solvent, 6-18 parts of filler, 2-8 parts of thickener, 2-10 parts of diluent, 1-5 parts of defoaming agent, 2-10 parts of curing agent, 1-5 parts of pigment, 10-30 parts of thermal color-changing agent, 5-20 parts of wetting agent and 5-15 parts of dispersing agent.
2. The tintable water-based paint as claimed in claim 1, wherein: 40-55 parts of water-based fluorocarbon resin, 10-20 parts of solvent, 6-15 parts of filler, 2-6 parts of thickening agent, 2-8 parts of diluent, 2-5 parts of defoaming agent, 2-8 parts of curing agent, 2-5 parts of pigment, 10-20 parts of thermal color-changing agent, 5-15 parts of wetting agent and 5-10 parts of dispersing agent.
3. The tintable water-based paint as claimed in claim 1, wherein: 50 parts of waterborne fluorocarbon resin, 15 parts of solvent, 10 parts of filler, 4 parts of thickener, 4 parts of diluent, 3 parts of defoaming agent, 5 parts of curing agent, 5 parts of pigment, 15 parts of thermochromic agent, 10 parts of wetting agent and 5 parts of dispersing agent.
4. The tintable water-based paint as claimed in claim 1, wherein: the color filler is one or more of titanium dioxide, pigment carbon black, scarlet powder, phthalocyanine green and superfine talcum powder, and the filler is one of nano glass flakes, stainless steel flakes or mica flakes.
5. The tintable water-based paint as claimed in claim 1, wherein: the defoaming agent is one of polyether defoaming agent, organic silicon defoaming agent, polyether modified silicon vial defoaming agent or polysiloxane defoaming agent, and the curing agent is amine modified curing agent.
6. The tintable water-based paint as claimed in claim 1, wherein: the wetting agent is a multi-branched alcohol modified surfactant, in particular to an acetylene glycol polyoxyethylene ether surfactant.
7. The tintable water-based paint of claim 1, wherein the thermochromic agent is prepared by: adding a certain amount of crystal naphthol disulfonic acid lactone and biphenyltriol into a grinder, grinding, stirring and mixing continuously, and simultaneously adding glycidyl ester into the grinder to obtain the thermochromic agent.
8. The tintable water-based paint as claimed in claim 1, wherein: the mass ratio of the crystal naphthol disulfonic acid lactone to the biphenyl triphenol to the glycidyl ester is 1: 2-1:3-25.
9. The method for preparing a tintable water-based paint according to claims 1-8, comprising the steps of:
s1, mixing 40-60 parts of aqueous fluorocarbon resin and 10-30 parts of solvent, adding 10-30 parts of thermochromic agent, pouring into a stirrer, and stirring at the speed of 1000-;
s2, adding 6-18 parts of filler and 1-5 parts of pigment into the mixed solution a, adding 5-15 parts of dispersing agent in a continuous stirring mode, fully stirring until the coating is not obviously layered, then adding 5-20 parts of wetting agent, stirring for 15-30 minutes to ensure uniform mixing, if the viscosity of the solution rises, properly heating to reduce the viscosity, and then adding 1-5 parts of defoaming agent to obtain mixed solution b;
and S3, adding the mixed solution b and 2-10 parts of the curing agent into the reaction kettle simultaneously, stirring the mixed solution and the curing agent until the curing agent is completely mixed, heating the mixed solution to 90 ℃ for 30 minutes to obtain the color-changeable water-based paint for can making, and adding 2-10 parts of the diluent into the water-based paint when in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439576.4A CN113980523A (en) | 2021-11-30 | 2021-11-30 | Color-changeable can-making water-based paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439576.4A CN113980523A (en) | 2021-11-30 | 2021-11-30 | Color-changeable can-making water-based paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113980523A true CN113980523A (en) | 2022-01-28 |
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| CN114672226A (en) * | 2022-04-27 | 2022-06-28 | 深圳市深赛尔股份有限公司 | Water-based polyester tank-making coating and preparation method thereof |
| CN114836109A (en) * | 2022-04-25 | 2022-08-02 | 深圳市深赛尔股份有限公司 | Water-based fluorine modified polyester coating for can making surface and spraying process thereof |
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Application publication date: 20220128 |