CN116836597A - Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint - Google Patents
Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint Download PDFInfo
- Publication number
- CN116836597A CN116836597A CN202210299947.1A CN202210299947A CN116836597A CN 116836597 A CN116836597 A CN 116836597A CN 202210299947 A CN202210299947 A CN 202210299947A CN 116836597 A CN116836597 A CN 116836597A
- Authority
- CN
- China
- Prior art keywords
- parts
- preparation
- premix
- resin
- deionized water
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003973 paint Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000008367 deionised water Substances 0.000 claims abstract description 22
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 22
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- IPGANOYOHAODGA-UHFFFAOYSA-N dilithium;dimagnesium;dioxido(oxo)silane Chemical compound [Li+].[Li+].[Mg+2].[Mg+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O IPGANOYOHAODGA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 9
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 9
- 229920003180 amino resin Polymers 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002562 thickening agent Substances 0.000 claims description 9
- 229920001400 block copolymer Polymers 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 239000003002 pH adjusting agent Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920005906 polyester polyol Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 5
- 239000000049 pigment Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- -1 acrylic ester Chemical class 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
- 239000013530 defoamer Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000013022 formulation composition Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical class CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 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 description 1
- 238000001035 drying Methods 0.000 description 1
- 229940093476 ethylene glycol Drugs 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229940094522 laponite Drugs 0.000 description 1
- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000000080 wetting agent 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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- 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
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- 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
- C09D7/80—Processes for incorporating ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- 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 preparation method of a water-based pearlescent paint with improved brightness, which comprises the following steps: dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix; mixing the aqueous acrylic resin/emulsion, polyurethane resin, amino resin, solvent, auxiliary agent, residual deionized water and the premix, and adjusting the mixture to the required viscosity and pH value to obtain the aqueous pearlescent coating. The preparation method solves the appearance defect that the existing water-based pearlescent paint has limited color difference, brightness and color improvement effect. The invention discloses the water-based pearlescent paint prepared by the preparation method.
Description
Technical Field
The invention relates to the field of water-based pearlescent paint. More particularly, it relates to a method for preparing a water-based pearlescent paint with improved brightness and the prepared water-based pearlescent paint.
Background
At present, the water-based pearlescent paint has been widely applied in the fields of automobiles and other industries due to gorgeous colors and flickering effects. Compared with aluminum powder and other pigment and filler, the pearlescent powder has good dispersing effect, and is generally directly added into the paint for use, but the existing paint added with the pearlescent powder often has the following problems: 1. the dispersing effect is poor in the preparation process, and the pearl powder is easy to agglomerate in the storage and circulation processes; 2. the directional arrangement of the spraying pearl powder is poor, so that the defects of color difference, brightness difference, color improvement and the like exist in the color. Especially in a 1 bake spray process for aqueous 3 coats, for example: the process of spraying and flashing-drying water-based pearlescent paint and spraying varnish has the defects of unoriented drifting and sinking of the pearlescent powder, namely poor directionality, so that the color is affected.
Disclosure of Invention
Based on the above facts, an object of the present invention is to provide a method for producing an aqueous pearlescent coating having improved brightness and an aqueous pearlescent coating produced by the method. The problems of appearance defects of limited color difference, brightness, color improvement effect and the like of the existing water-based pearlescent paint are solved.
In one aspect, the present invention provides a method for preparing an aqueous pearlescent coating with improved brightness, comprising the steps of:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
mixing the aqueous acrylic resin/emulsion, polyurethane resin, amino resin, solvent, auxiliary agent, residual deionized water and the premix, and adjusting the mixture to the required viscosity and pH value to obtain the aqueous pearlescent coating.
Further, the premix comprises, by weight, 0.5-30 parts of pearl powder, 0.1-1 part of a dispersing agent, 0.1-10 parts of a polyol resin, 0.1-0.4 part of magnesium lithium silicate and 10-15 parts of deionized water.
Further, the preparation of the premix comprises the following steps:
adding magnesium lithium silicate, polyol resin and pearl powder into part of deionized water under the stirring condition of 400-500r/min, stirring uniformly, performing ultrasonic dispersion, adding a dispersing agent, and stirring uniformly to obtain the premix.
Further, the preparation of the water-based pearlescent paint comprises the following steps:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
60-150 parts of aqueous acrylic resin/emulsion, 10-20 parts of polyurethane resin, 40-80 parts of amino resin, 50-100 parts of solvent, 3.5-44 parts of auxiliary agent, 20-200 parts of deionized water and 10.8-47.4 parts of premix are mixed, and the viscosity and the PH value are regulated to be required, so that the aqueous pearlescent coating is obtained.
Further, the auxiliary agent is one or more selected from pH regulator, defoamer, leveling agent and thickener.
Further, the auxiliary agent comprises 0.5-3 parts by weight of pH regulator, 0-1 part by weight of defoamer, 1-20 parts by weight of flatting agent and 2-20 parts by weight of thickener.
Further, the mixed material also comprises 0-80 parts of color paste.
Further, the dispersant is a high molecular weight block copolymer, preferably an acrylic ester-based high molecular weight block copolymer.
Further, the polyol resin is selected from polyester polyols or polyether polyols.
In yet another aspect, the present invention provides a water-based pearlescent coating prepared by the method for preparing a water-based pearlescent coating as described above.
The beneficial effects of the invention are as follows:
in the preparation method, the addition mode of the pearl powder is adjusted, so that the dispersion effect, stability and orientation effect of the pearl powder are improved. The appearance problem of the water-based pearlescent paint is further improved by controlling the composition, the content and the like of the premix.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
A preparation method of an aqueous pearlescent paint with improved brightness comprises the following steps:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
mixing the aqueous acrylic resin/emulsion, polyurethane resin, amino resin, solvent, auxiliary agent, residual deionized water and the premix, and adjusting the mixture to the required viscosity and pH value to obtain the aqueous pearlescent coating.
In some examples, the premix comprises, in parts by weight, 0.5-30 parts pearl powder, 0.1-1 part dispersant, 0.1-10 parts polyol resin, 0.1-0.4 part lithium magnesium silicate, and 10-15 parts deionized water.
In some examples, the preparation of the premix comprises the steps of:
adding magnesium lithium silicate, polyol resin and pearl powder into part of deionized water under the stirring condition of 400-500r/min, stirring uniformly, performing ultrasonic dispersion, adding a dispersing agent, and stirring uniformly to obtain the premix.
Pearl powders suitable for use in this embodiment include, but are not limited to, pearl powders selected from merck or kun-color.
Dispersants suitable for use in this embodiment include, but are not limited to, high molecular weight block copolymer solutions, preferably acrylic high molecular weight block copolymers. For example: BYK-190.
Polyol resins suitable for use in this embodiment include, but are not limited to, those selected from the group consisting of polyester polyols or polyether polyols, such as: MPD/AABL-640 (multiple force). The polyol resin can play a role of a dispersing agent, and meanwhile, the polyol resin is matched with RD to help the stable dispersion of RD. Due to its low molecular weight, the coating can be improved.
Lithium magnesium silicate suitable for use in the present embodiment includes, but is not limited to, those selected from Laponite RD (pimid) and the like. The lithium magnesium silicate can help to improve the thixotropic property of the sample paint, namely, improve the orientation of pearlescence and reduce the sedimentation of pigments such as pearlescence.
In some examples, the preparation method comprises the steps of:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
60-150 parts of aqueous acrylic resin/emulsion, 10-20 parts of polyurethane resin, 40-80 parts of amino resin, 50-100 parts of solvent, 3.5-44 parts of auxiliary agent, 20-200 parts of deionized water and 10.8-47.4 parts of premix are mixed, and the viscosity and the PH value are regulated to be required, so that the aqueous pearlescent coating is obtained.
Aqueous acrylic resins/emulsions suitable for use in this embodiment include, but are not limited to, shiquanxing acrylic secondary fraction 2243 and the like.
Polyurethane resins suitable for use in this embodiment include, but are not limited to, aqueous polyurethanes selected from the group consisting of vancomic adwell 1630A.
Amino resins suitable for use in this embodiment include, but are not limited to, one or both selected from CYMEL327, CYMEL370 of the zhan new company.
Solvents suitable for use in this embodiment include, but are not limited to, solvents selected from isooctanols, ethyleneglycol isooctanols, alkanes (e.g., shell TK from Shell Corp.)
In some examples, the auxiliary agent is selected from one or more of a pH adjuster, an antifoaming agent, a leveling agent, and a thickener.
In some examples, the adjuvant comprises, in parts by weight, 0.5-3 parts of a pH adjuster, 0-1 part of an antifoaming agent, 1-20 parts of a leveling agent, and 2-20 parts of a thickener.
Suitable pH adjusting agents for use in this embodiment include, but are not limited to, those selected from the group consisting of N, N-Dimethylethanolamine (DMEA), and the like.
Defoamers suitable for use in the present embodiment include, but are not limited to, one or more selected from phosphate defoamers, polyether modified silicones, diols, for example: BYK-024 from Bick.
Leveling agents suitable for use in this embodiment include, but are not limited to, those selected from the group consisting of silicone wetting agents: such as the win company TEGO Wet 270, etc.
Suitable thickeners for use in the present embodiment include, but are not limited to, one or more selected from polyurethane associative thickeners, EVA waxes, polyamide waxes, for example: polyamide wax anti-settling agent 8700 for Dragon sea chemical industry, etc.
In some examples, the mixed materials further comprise 0-80 parts of color paste.
The invention also provides the water-based pearlescent paint prepared by the preparation method.
The following describes the technical scheme of the present invention with reference to some specific embodiments:
example 1
A method for preparing an aqueous pearlescent paint (AR 2000 3R3 red basic formula) with improved brightness, the raw material composition is shown in table 1, the method comprises the following steps:
step a pearl powder premixing: according to the raw material proportion, firstly adding part of deionized water into a reaction kettle, adding magnesium lithium silicate, polyalcohol and pearl powder (blue pearl: automotive Splendor Red A-741K-SP;4.1 parts of red pearl: AUTOMOTIVE FLASH RUSSET A-660S;6.1 parts of yellow pearl: AUTOMOTIVE FLASH COPPER A-640S) 12.22 parts under the stirring condition of the speed of 400-500r/min, stirring for 15-20 minutes, dispersing for 15-20 minutes by using ultrasonic wave, adding a dispersing agent, stirring for 5-15 minutes, and adding the mixture into a coating for use;
step b, paint mixing: sequentially adding acrylic resin, amino resin and color paste (conventional color paste, which exemplarily comprises but is not limited to red color paste: AR-2000 (T) RUBINE TR RED UDP; red color paste: AR-2000 (T) 355MAGENTA 17% color paste; BLUE color paste: AR-2000 (T) 6510BLUE UDP (180 kg)), the premix of step a, a PH regulator, an antifoaming agent, a solvent, a leveling agent, a thickening agent and deionized water, and adjusting to proper viscosity and PH value.
TABLE 1
Comparative examples 1 to 1
A preparation method of the water-based pearlescent paint (AR 2000 3R3 red basic formula) is characterized in that the raw material composition is shown in Table 2, and the preparation method is further different from example 1 in that premixing is not performed.
TABLE 2
Comparative examples 1 to 2
Example 1 was repeated except that the polyol resin was not added in the "premix" stage, but in the "paint" stage, and the remaining conditions were unchanged, to prepare the aqueous pearlescent coating.
Example 2
Example 1 was repeated except that the present example was an AR 3500NH-883P (MICA BASE) water paint, the pearlescent powder was a blend of XIRALLIC T60-10 WNT CRYSTAL SILVER5.2 parts, and TWINCLEPEARL SXC-SO8.8 parts, the color paste was a conventional color paste or an exemplary, talc powder paste: 10.8 parts of AR-2000 (T) LMS-300PASTE (WO RESIN)% color paste, 11.8 parts of AR-2000 (T) WHITE aqueous WHITE paste and barium sulfate paste: AR-2000 (T) BF-20PASTE (W/O RESIN) UDP9.6 parts and AR 2000 (T) 5000BLACK UDP (170 kg) 0.1 parts were composed of BLACK PASTE, and the formulation composition thereof was as shown in Table 3 below.
TABLE 3 Table 3
Comparative example 2
Example 1 was repeated, the formulation composition of the aqueous pearlescent coating of this example being shown in the following table 4, further differing from example 2 in that no premixing was performed.
TABLE 4 Table 4
The color of the paint obtained in example 1 above was compared with the color of the paint obtained by directly adding pearl powder to the raw material without premixing (color before adjustment in comparative examples 1-1, table below) (color difference adjusted in table below) as shown in table 5 below. As can be seen from Table 5, the L value (lightness) of the coating in example 1 was higher than that of the coating in comparative example 1-1, and a high L value indicates that the flaky pigment was more smoothly arranged. The L value is increased, which indicates that the flaky pearlescent pigment promotes smooth arrangement due to good dispersing effect.
TABLE 5
The color of the paint obtained in example 2 above was compared with the color of the paint obtained by directly adding pearl powder to the raw material without premixing (comparative example 2, color before adjustment in the following table) (color difference adjusted in the following table) as shown in the following table 6.
TABLE 6
From the above data, it can be seen that the arrangement effect of the pearl powder can be significantly improved by fully dispersing the pearl powder and affecting the color to some extent. (remark, ΔL rise ratio is merely a reflection of numerical values, and there are differences according to the kind, amount and color of pearl powder)
Other appearance and gloss properties of the aqueous pearlescent coatings described in example 1 and comparative examples 1-1 and 1-2 are shown in Table 7 below.
TABLE 7
The mechanical properties and water and chemical resistance properties of the aqueous pearlescent coating obtained in the above example 1 are shown in the following table 8.
TABLE 8
Other properties of the aqueous pearlescent coatings in the above example 2 and comparative example 2 are compared with each other as shown in table 9 below.
TABLE 9
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. The preparation method of the water-based pearlescent paint with improved brightness is characterized by comprising the following steps:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
mixing the aqueous acrylic resin/emulsion, polyurethane resin, amino resin, solvent, auxiliary agent, residual deionized water and the premix, and adjusting the mixture to the required viscosity and pH value to obtain the aqueous pearlescent coating.
2. The preparation method according to claim 1, wherein the premix comprises, in parts by weight, 0.5 to 30 parts of pearl powder, 0.1 to 1 part of a dispersant, 0.1 to 10 parts of a polyol resin, 0.1 to 0.4 part of magnesium lithium silicate and 10 to 15 parts of deionized water.
3. The method of preparing according to claim 2, characterized in that the preparation of the premix comprises the steps of:
adding magnesium lithium silicate, polyol resin and pearl powder into part of deionized water under the stirring condition of 400-500r/min, stirring uniformly, performing ultrasonic dispersion, adding a dispersing agent, and stirring uniformly to obtain the premix.
4. The method of manufacturing according to claim 1, comprising the steps of:
dispersing pearl powder, a dispersing agent, polyol resin and lithium magnesium silicate in partial deionized water to obtain a premix;
60-150 parts of aqueous acrylic resin/emulsion, 10-20 parts of polyurethane resin, 40-80 parts of amino resin, 50-100 parts of solvent, 3.5-44 parts of auxiliary agent, 20-200 parts of deionized water and 10.8-47.4 parts of premix are mixed, and the viscosity and the PH value are regulated to be required, so that the aqueous pearlescent coating is obtained.
5. The preparation method according to claim 1, wherein the auxiliary agent is one or more selected from the group consisting of a pH adjuster, an antifoaming agent, a leveling agent, and a thickener.
6. The preparation method according to claim 5, wherein the auxiliary agent comprises 0.5-3 parts by weight of a pH regulator, 0-1 part by weight of an antifoaming agent, 1-20 parts by weight of a leveling agent and 2-20 parts by weight of a thickener.
7. The method of claim 1, wherein the mixed material further comprises 0-80 parts of color paste.
8. The method of claim 1, wherein the dispersant is a high molecular weight block copolymer, preferably an acrylic high molecular weight block copolymer.
9. The method of claim 1, wherein the polyol resin is selected from polyester polyols and polyether polyols.
10. The aqueous pearlescent coating prepared by the preparation method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210299947.1A CN116836597A (en) | 2022-03-25 | 2022-03-25 | Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210299947.1A CN116836597A (en) | 2022-03-25 | 2022-03-25 | Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116836597A true CN116836597A (en) | 2023-10-03 |
Family
ID=88165754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210299947.1A Pending CN116836597A (en) | 2022-03-25 | 2022-03-25 | Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116836597A (en) |
-
2022
- 2022-03-25 CN CN202210299947.1A patent/CN116836597A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4143688B4 (en) | Use of a mixing system and process for the preparation of water-based paints and water-dilutable coating compositions | |
| CN110922874B (en) | Water-based acrylic polyurethane amino baking pearlescent paint and preparation method thereof | |
| JPH05263042A (en) | Aqueous coating agent, its manufacture and use for producing layer of filler | |
| CN108276890B (en) | Water-based automobile intermediate coating composition and preparation method thereof | |
| CN109401506B (en) | Waterborne interference pearlescent flashing paint for automobiles and preparation method thereof | |
| CA2203697A1 (en) | Pigment dispersing additive for coating compositions | |
| CN112574660B (en) | Water-based wet spraying coating for bullet trains and preparation method thereof | |
| CN108822674A (en) | Automobile-used aqueous assorted metal flash paint of a kind of three-wheel and preparation method thereof | |
| CN112048237A (en) | Water-based double-component matte clear finish paint and preparation method thereof | |
| CN111269645B (en) | Waterborne polyurethane orange-peel finish and preparation method thereof | |
| CN111718626A (en) | Boiling water resistant glass coating and preparation method thereof | |
| CN108977029A (en) | A kind of water colour paint and preparation method thereof with high scintillation effect | |
| CN112341877B (en) | Three-dimensional pearlescent effect artistic paint | |
| CN116836597A (en) | Preparation method of water-based pearlescent paint with improved brightness and prepared water-based pearlescent paint | |
| CN111732861A (en) | Boiling water resistant glass coating material and preparation method thereof | |
| CN112500750A (en) | High-matte three-dimensional pearlescent effect artistic paint | |
| CN112322123A (en) | Zero-process artistic coating and preparation thereof | |
| CN112063250A (en) | Water-based matte white coating and preparation method thereof | |
| JPH0372107B2 (en) | ||
| JP2001181366A (en) | Water-based polymer emulsion-polyester polyol formulation for decreasing of eliminating flooding and floating in water-based two-component polyurethane coating | |
| CN109679473A (en) | Environment-friendly water-based pencil colored paint and its preparation method and application suitable for wood pencils | |
| CN109135535A (en) | A kind of one-component metal flash paint of water and oil applicable | |
| CN111234635A (en) | Boiling water resistant glass coating and preparation method thereof | |
| CN111117445A (en) | Easily-coated high-brightness water-based colored paint and preparation method thereof | |
| CN112625576A (en) | Water-based semi-gloss polyurethane finish paint and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |