CN114716877A - Water-based fluorine-modified polyester tank coating and preparation method thereof - Google Patents
Water-based fluorine-modified polyester tank coating and preparation method thereof Download PDFInfo
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- CN114716877A CN114716877A CN202210441615.2A CN202210441615A CN114716877A CN 114716877 A CN114716877 A CN 114716877A CN 202210441615 A CN202210441615 A CN 202210441615A CN 114716877 A CN114716877 A CN 114716877A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000011248 coating agent Substances 0.000 title claims abstract description 60
- 229920000728 polyester Polymers 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 23
- 239000000839 emulsion Substances 0.000 claims abstract description 70
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical class FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000000945 filler Substances 0.000 claims abstract description 41
- 239000000049 pigment Substances 0.000 claims abstract description 41
- 239000008367 deionised water Substances 0.000 claims abstract description 37
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 37
- 239000002270 dispersing agent Substances 0.000 claims abstract description 33
- 239000002562 thickening agent Substances 0.000 claims abstract description 33
- 229920001225 polyester resin Polymers 0.000 claims abstract description 32
- 239000004645 polyester resin Substances 0.000 claims abstract description 32
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011737 fluorine Substances 0.000 claims abstract description 31
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 31
- 239000000080 wetting agent Substances 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 12
- 238000004132 cross linking Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims description 57
- 238000003756 stirring Methods 0.000 claims description 37
- 239000002518 antifoaming agent Substances 0.000 claims description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000010445 mica Substances 0.000 claims description 10
- 229910052618 mica group Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 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 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 claims description 2
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 claims description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 230000008033 biological extinction Effects 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- -1 polysiloxane Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 125000005372 silanol group Chemical group 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
- 239000002210 silicon-based material Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000008235 industrial water Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000006115 industrial coating Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- 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)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based fluorine modified polyester tank coating and a preparation method thereof, relates to the technical field of industrial water-based coatings, and particularly relates to a water-based fluorine modified polyester tank coating and a preparation method thereof, wherein the water-based fluorine modified polyester tank coating comprises the following raw materials in parts by weight: 20-50 parts of modified fluorocarbon emulsion, 10-30 parts of waterborne polyester resin, 10-20 parts of deionized water, 0.2-1 part of dispersant, 0.2-0.5 part of defoamer, 20-40 parts of pigment and filler, 0.5-2 parts of thickener, 0.5-2 parts of film-forming assistant, 0.2-0.8 part of wetting agent and 30-80 parts of curing agent. The aqueous coating prepared by the invention is prepared by introducing the ultraviolet crosslinking elastic emulsion into the single fluorocarbon emulsion to modify the fluorocarbon emulsion and then mixing the modified fluorocarbon emulsion with the aqueous polyester resin, so that the phenomenon that the single aqueous fluorocarbon coating has poor weather resistance, gloss retention and hardness compared with a solvent type fluorocarbon coating in the using process can be effectively reduced, and the service life and the using effect of the coating are further improved.
Description
Technical Field
The invention relates to the technical field of water-based industrial coatings, in particular to a water-based fluorine-modified polyester tank coating and a preparation method thereof.
Background
With the continuous development of economy in China, the technology of the industrial coating is increasingly improved. The metal packaging coating is an important branch of industrial coatings, and the sealing effect of the metal packaging coating on the metal surface is utilized to prevent the corrosion and oxidation of external water, air, solution and the like on metal materials. Moreover, different manufacturers can perform artistic treatment on the coated metal surface. Therefore, the metal packaging coating is widely applied to processing of various metal can bodies and plays a role in protecting and decorating the can bodies. The traditional metal packaging coating has higher hardness and lower flexibility, so that the conditions of cracking and damage of the coating are very easy to occur in the processing processes of bending, extending, stamping, stretching and the like of metal. Under the condition, the sealing performance of the coating is greatly reduced, the coating is stripped from the metal surface under the action of long-time external corrosion and oxidation, and the normal use and the service life of the metal tank body are seriously affected, so that a coating with good rust resistance, good shielding property and strong weather resistance is urgently needed to solve the problems, and therefore, a water-based fluorine modified polyester tank coating and a preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a water-based fluorine-modified polyester tank coating and a preparation method thereof aiming at the defects of the prior art, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the water-based fluorine modified polyester tank coating comprises the following raw materials in parts by weight: 20-50 parts of modified fluorocarbon emulsion, 10-30 parts of waterborne polyester resin, 10-20 parts of deionized water, 0.2-1 part of dispersant, 0.2-0.5 part of defoamer, 20-40 parts of pigment and filler, 0.5-2 parts of thickener, 0.5-2 parts of film-forming assistant and 0.2-0.8 part of wetting agent.
As a preferred technical scheme of the invention, the water-based fluorine modified polyester tank coating comprises the following raw materials in parts by weight: 20-40 parts of modified fluorocarbon emulsion, 10-20 parts of waterborne polyester resin, 10-15 parts of deionized water, 0.2-0.6 part of dispersant, 0.2-0.4 part of defoamer, 20-35 parts of pigment and filler, 1-2 parts of thickener, 1-2 parts of film forming additive and 0.2-0.5 part of wetting agent.
As a preferred technical scheme of the invention, the water-based fluorine modified polyester tank coating comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
In a preferred embodiment of the invention, the dispersant is one of TEGODISPERS757W dispersant, TEGODISPERS750W dispersant or TEGODISPERS755W dispersant.
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 wetting agent is silanol nonionic surfactant, and is specifically one of GSK-588, GSK-582 and GSK-585.
As a preferred technical scheme of the invention, the pigment filler is composed of pigment and filler, the pigment is one or more of titanium dioxide, pigment carbon black, scarlet powder and talcum powder, the filler is one or more of iron oxide, titanium dioxide, kaolin, mica powder, carbon powder, silicon material, ore powder and extinction powder, and the coupling agent is one of silane coupling agent and titanate coupling agent.
As a preferable technical scheme of the invention, the film-forming additive is one of 2,2, 4-trimethyl-1, 3 pentanediol monoisobutyrate, propylene glycol phenyl ether and ethylene glycol butyl ether, and the thickener is a polyurethane thickener.
As a preferred technical scheme of the invention, the modified fluorocarbon emulsion is prepared by mixing fluorocarbon emulsion and ultraviolet crosslinking elastic emulsion.
The invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20-50 parts of modified fluorocarbon emulsion, 10-30 parts of waterborne polyester resin, 10-20 parts of deionized water, 0.2-1 part of dispersant, 0.2-0.5 part of defoamer, 20-40 parts of pigment and filler, 0.5-2 parts of thickener, 0.5-2 parts of film forming additive and 0.2-0.8 part of wetting agent for later use;
s2, firstly, adding 10-20 parts of deionized water into a paint mixing tank, then sequentially adding 0.2-1 part of dispersing agent, 0.2-0.5 part of defoaming agent and 0.2-0.8 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20-40 parts of pigment and filler again after uniform stirring, rotating at high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to the specified fineness to obtain a mixed solution A for later use;
s3, adding 20-50 parts of modified fluorocarbon emulsion and 10-30 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 0.5-2 parts of a film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, adding 1-2 parts of a thickening agent and a proper amount of deionized water into the mixed solution c, and adjusting the mixed solution c to a proper viscosity to obtain the waterborne fluorine-modified polyester tank-making coating;
compared with the prior art, the invention provides the water-based fluorine modified polyester tank coating and the preparation method thereof, and the water-based fluorine modified polyester tank coating has the following beneficial effects:
1. according to the water-based fluorine modified polyester tank coating and the preparation method thereof, the ultraviolet crosslinked elastic emulsion and the water-based polyester resin are added into the fluorocarbon emulsion, the low-temperature elasticity and the air permeability of a film formed by the ultraviolet crosslinked elastic emulsion are excellent, the surface of the coating becomes hard after ultraviolet crosslinking, the stain resistance is improved, and the introduction of the water-based polyester resin can further improve the coating performances such as high temperature resistance, water resistance, weather resistance and air permeability, so that the phenomena of poor weather resistance, poor gloss retention and poor hardness of a single fluorocarbon emulsion coating in the using process are effectively reduced, and the acid resistance of the coating can be further improved and the corrosion phenomenon of the coating in the using process is reduced by adding the mica powder filler into the fluorocarbon emulsion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
The modified fluorocarbon emulsion is prepared by the following method: adding the ultraviolet crosslinking elastic emulsion into the fluorocarbon emulsion, mixing and stirring uniformly, and standing for 30 minutes to obtain a modified fluorocarbon emulsion;
the invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoamer, 20 parts of titanium dioxide and mica flake, 1 part of thickener, 1 part of film-forming assistant and 0.2 part of wetting agent according to parts by weight for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of dispersing agent, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of titanium dioxide and mica flakes again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to a specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of modified fluorocarbon emulsion and 10 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, thus obtaining the waterborne fluorine modified polyester tank coating.
Example two:
the invention provides a water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
The modified fluorocarbon emulsion is prepared by the following method: adding the ultraviolet crosslinking elastic emulsion into the fluorocarbon emulsion, mixing and stirring uniformly, and standing for 30 minutes to obtain a modified fluorocarbon emulsion;
the invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of mica powder, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent according to parts by weight for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of mica powder, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of pigment and filler again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to a specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of modified fluorocarbon emulsion and 10 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, thus obtaining the waterborne fluorine modified polyester tank coating.
Example three:
the invention provides a water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoamer, 20 parts of pigment and filler, 1 part of thickener, 1 part of film-forming assistant and 0.2 part of wetting agent.
The modified fluorocarbon emulsion is prepared by the following method: adding the ultraviolet crosslinking elastic emulsion into the fluorocarbon emulsion, uniformly mixing and stirring, and standing for 30 minutes to obtain the modified fluorocarbon emulsion, wherein the mass ratio of the fluorocarbon emulsion to the ultraviolet crosslinking emulsion is 1: 2.
The invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoamer, 20 parts of pigment and filler, 1 part of thickener, 1 part of film-forming assistant and 0.2 part of wetting agent according to parts by weight for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of dispersing agent, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of pigment and filler again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to the specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of modified fluorocarbon emulsion and 10 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, thus obtaining the waterborne fluorine modified polyester tank coating.
Comparative example one:
the invention provides a water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
The modified fluorocarbon emulsion is prepared by the following method: adding the ultraviolet crosslinking elastic emulsion into the fluorocarbon emulsion, mixing and stirring uniformly, and standing for 30 minutes to obtain a modified fluorocarbon emulsion;
the invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoamer, 20 parts of talcum powder and mica flake, 1 part of thickener, 1 part of film-forming assistant and 0.2 part of wetting agent for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of dispersing agent, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of talcum powder and mica flakes again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until pigment and filler are uniformly dispersed, and grinding to a specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of modified fluorocarbon emulsion and 10 parts of water-based polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, so that the water-based fluorine-modified polyester tank coating can be obtained;
the following tests were carried out for example one and comparative example one:
it can be seen from the above table that the examples have better aging resistance and weather resistance than the comparative example.
Comparative example two:
the invention provides a water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
The modified fluorocarbon emulsion is prepared by the following method: adding the ultraviolet crosslinking elastic emulsion into the fluorocarbon emulsion, mixing and stirring uniformly, and standing for 30 minutes to obtain a modified fluorocarbon emulsion;
the invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of kaolin, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent according to parts by weight for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of kaolin, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of pigment and filler again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to the specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of modified fluorocarbon emulsion and 10 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, thus obtaining the waterborne fluorine modified polyester tank coating.
And tested by the following tests on example two and comparative example two:
the comparison between the second example and the second example shows that when mica powder is used as the filler, the water-based paint has good corrosion resistance.
Comparative example three:
the invention provides a water-based fluorine-modified polyester tank coating, which comprises the following raw materials in parts by weight: 20 parts of fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
The invention also provides a water-based fluorine modified polyester tank coating and a preparation method thereof, and the preparation method comprises the following steps:
s1, weighing 20 parts of fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoamer, 20 parts of pigment and filler, 1 part of thickener, 1 part of film-forming assistant and 0.2 part of wetting agent according to parts by weight for later use;
s2, firstly, adding 10 parts of deionized water into a paint mixing tank, then sequentially adding 0.2 part of dispersing agent, 0.2 part of defoaming agent and 0.2 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20 parts of pigment and filler again after uniform stirring, rotating at a high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to the specified fineness to obtain a mixed solution A for later use;
s3, adding 20 parts of fluorocarbon emulsion and 10 parts of water-based polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 1 part of film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1 part of thickener and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, so that the water-based fluorine modified polyester tank coating can be obtained.
The above table shows that when the emulsion adopts a mixed solution of fluorocarbon emulsion and ultraviolet crosslinking emulsion, the aging and color changing time of the water-based paint is obviously improved, and the paint has higher weather resistance compared with the existing single fluorocarbon emulsion paint.
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 modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. 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 water-based fluorine modified polyester tank coating is characterized by comprising the following raw materials in parts by weight: 20-50 parts of modified fluorocarbon emulsion, 10-30 parts of waterborne polyester resin, 10-20 parts of deionized water, 0.2-1 part of dispersant, 0.2-0.5 part of defoamer, 20-40 parts of pigment and filler, 0.5-2 parts of thickener, 0.5-2 parts of film-forming assistant and 0.2-0.8 part of wetting agent.
2. The water-based fluorine modified polyester tank coating of claim 1, which is characterized by comprising the following raw materials in parts by weight: 20-40 parts of modified fluorocarbon emulsion, 10-20 parts of waterborne polyester resin, 10-15 parts of deionized water, 0.2-0.6 part of dispersant, 0.2-0.4 part of defoamer, 20-35 parts of pigment and filler, 1-2 parts of thickener, 1-2 parts of film-forming assistant and 0.2-0.5 part of wetting agent.
3. The water-based fluorine modified polyester tank coating material as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 20 parts of modified fluorocarbon emulsion, 10 parts of waterborne polyester resin, 10 parts of deionized water, 0.2 part of dispersant, 0.2 part of defoaming agent, 20 parts of pigment and filler, 1 part of thickening agent, 1 part of film-forming assistant and 0.2 part of wetting agent.
4. The water-based fluorine modified polyester can coating according to claim 1, wherein: the dispersant is one of TEGODISPERs757W dispersant, TEGODISPERs750W dispersant or TEGODISPERs755W dispersant.
5. The water-based fluorine modified polyester can coating according to 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 wetting agent is silanol nonionic surfactant, and is specifically one of GSK-588, GSK-582 and GSK-585.
6. The water-based fluorine modified polyester can coating according to claim 1, wherein: the pigment filler is composed of pigment and filler, the pigment is one or more of titanium dioxide, pigment carbon black, scarlet powder and talcum powder, the filler is one or more of iron oxide, titanium dioxide, kaolin, mica powder, carbon powder, silicon material, mineral powder and extinction powder, and the coupling agent is one of silane coupling agent and titanate coupling agent.
7. The water-based fluorine modified polyester can coating according to claim 1, wherein: the film-forming additive is one of 2,2, 4-trimethyl-1, 3 pentanediol monoisobutyrate, propylene glycol phenyl ether and ethylene glycol butyl ether, and the thickener is a polyurethane thickener.
8. The water-based fluorine modified polyester can coating of claim 1, wherein: the modified fluorocarbon emulsion is prepared by mixing fluorocarbon emulsion and ultraviolet crosslinking elastic emulsion.
9. The method of any one of claims 1 to 8, comprising the steps of:
s1, weighing 20-50 parts of modified fluorocarbon emulsion, 10-30 parts of waterborne polyester resin, 10-20 parts of deionized water, 0.2-1 part of dispersant, 0.2-0.5 part of defoamer, 20-40 parts of pigment and filler, 0.5-2 parts of thickener, 0.5-2 parts of film forming additive and 0.2-0.8 part of wetting agent for later use;
s2, firstly, adding 10-20 parts of deionized water into a paint mixing tank, then sequentially adding 0.2-1 part of dispersing agent, 0.2-0.5 part of defoaming agent and 0.2-0.8 part of wetting agent at the rotating speed of 500r/min, uniformly stirring, adding 20-40 parts of pigment and filler again after uniform stirring, rotating at high speed at the rotating speed of 1000r/min until the pigment and the filler are uniformly dispersed, and grinding to a specified fineness to obtain a mixed solution A for later use;
s3, adding 20-50 parts of modified fluorocarbon emulsion and 10-30 parts of waterborne polyester resin into a base material tank, uniformly mixing at a rotating speed of 1500r/min to obtain a mixed solution b, adding 0.5-2 parts of a film-forming aid into the mixed solution b, uniformly stirring, adding the mixed solution a obtained in the step 1, stirring at a speed of 1500r/min for 15min to obtain a mixed solution c, and adding 1-2 parts of a thickening agent and a proper amount of deionized water into the mixed solution c to adjust the mixed solution c to a proper viscosity, so that the waterborne fluorine modified polyester tank-making coating is obtained.
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Application publication date: 20220708 |