CN108129969B - 2K acrylic polyurethane metal flashing base color coating special for interior and exterior decorations of urban rail vehicles and locomotives and preparation method thereof - Google Patents
2K acrylic polyurethane metal flashing base color coating special for interior and exterior decorations of urban rail vehicles and locomotives and preparation method thereof Download PDFInfo
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- CN108129969B CN108129969B CN201711427878.3A CN201711427878A CN108129969B CN 108129969 B CN108129969 B CN 108129969B CN 201711427878 A CN201711427878 A CN 201711427878A CN 108129969 B CN108129969 B CN 108129969B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/38—Paints containing free metal not provided for above in groups C09D5/00 - C09D5/36
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
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Abstract
The invention relates to a 2K acrylic polyurethane metal flashing base color coating special for the interior and exterior decorations of urban rail vehicles and locomotives and a preparation method thereof; the coating consists of a main coating and an auxiliary coating; the main coating comprises low-hydroxyl acrylic resin, metal pigment, auxiliary agent and mixed solvent, and the auxiliary coating comprises aliphatic isocyanate and mixed solvent. The coating is applied by spraying double coatings and is cured into a film by baking or self-drying. The coating is mainly used for car bodies and interior decoration parts of urban rail cars and locomotives, can improve the grade of the urban rail cars and locomotives and manufacture noble, beautiful and colorful decoration effects; meanwhile, the service life of the coating can be prolonged, the coating has excellent wear resistance and scratch resistance, and the coating is suitable for exterior decorations of urban rail vehicles such as vehicle bodies, colored bands and patterns; interior decoration such as the coating of operation panel, door handrail, luggage rack etc..
Description
Technical Field
The invention relates to a 2K acrylic polyurethane metal flashing base color coating special for the interior and exterior decorations of urban rail vehicles and locomotives and a preparation method thereof; the acrylic polyurethane metal flashing base color coating is mainly used for exterior decorations of urban rail vehicles such as vehicle bodies, colored tapes and patterns; the interior decorations such as the decorations of an operation console, a door handrail, a luggage rack and the like can improve the grade of an urban rail vehicle and manufacture noble, beautiful and colorful decorative effects; simultaneously, the service life of the coating can be prolonged, and the wear resistance and the scratch resistance are excellent.
Background
With the high-speed development of the urban rail vehicle and locomotive industry, new materials and new technologies are continuously emerging and updated, more and more high-quality products are gradually perceived by people, and popularization and application are achieved; especially, the continuous increase in production and expansion of the domestic automobile industry in recent years and the rapid increase and demand of urban rail and subway construction provide new development opportunities for the coating industry, especially decorative coatings and functional coatings. Among them, metallic glitter paints are popular because of their special metallic luster. At present, the usage amount of metallic flashing paint as automobile finish paint is increased year by year, and the metallic flashing paint and solid color paint are respectively 1/2. However, the metallic paint used for excellent decorative effect is difficult to construct in large area especially for urban rail vehicles and locomotives, and is prone to various objective problems such as blooming and color difference. Therefore, 2K acrylic polyurethane metal flashing base color paint special for urban rail vehicles and locomotives and suitable for being constructed in large-area environment is developed in a targeted manner. Therefore, the metallic flashing base paint has gained wide acceptance in the urban rail vehicle and locomotive manufacturing and repair markets.
The traditional polyurethane solid-color paint is monotonous in color, unsmooth and cold and hard, and the hardness of the paint surface is softer without a plain-color paint added with metal powder, so that the paint surface is easy to peel off when a high-speed driving is hit by flystones bounced from the road surface. Moreover, the vehicle with the plain color paint cannot be directly wiped by dry cloth or wet cloth during cleaning, and a large amount of clean water is absolutely required to firstly wash off dust attached to the surface of the vehicle paint, so that hard dust and sand can not scratch the vehicle paint when the cleaning cloth contacts the vehicle body, and the substrate is particularly obvious once the substrate is defective.
At present, the variety of metallic flashing paints prepared at home and abroad is more, main resin comprises polyester-amino, acrylic acid-amino, 1K acrylic acid, 2K acrylic polyurethane and other materials, most of metallic pigments are imported expensive aluminum powder or bronze powder, the metallic pigments are water-based and solvent-based, the performances of the metallic pigments are different, and the metallic powders are unstable in water and air and often undergo chemical reaction to deteriorate, so that the surfaces of the metallic powders need to be specially treated, so that the metallic powders used in the water-based paints are expensive and limited in use, and the main resins mainly comprise the solvent-based at present. The adopted judgment standards are mostly subject to negotiation among clients and are not unified, the application of the method is mainly limited to household appliances, digital products, office equipment, automobile interior and exterior trimming parts, precise instrument panels and the like, and the method is not used on urban rail vehicles and locomotives.
The interior and exterior materials of urban rail vehicles and locomotives are greatly different from household appliances, digital products, automobiles and the like, and most of the interior and exterior materials of the urban rail vehicles and locomotives are plastic or plastic parts, so that the interior and exterior materials are small in size, suitable for large-batch customization, production and spraying construction and suitable for assembly line operation; most of the interior and exterior trimming parts of urban rail vehicles and locomotives are mainly made of carbon steel, stainless steel and aluminum profiles, and each part has large area, complex shape, high construction difficulty and special process matching requirements, so that the coating has great difference in the aspects of coating use and process selection.
Disclosure of Invention
The invention aims to overcome the defects of the traditional polyurethane solid-color coating and provide a 2K acrylic polyurethane metal flashing base color coating special for the interior and exterior decorations of urban rail vehicles and locomotives, which has the characteristics of prolonging the service life of a coating film, improving the surface hardness of the coating film, along with excellent adhesive force, delicate and high-grade decoration and wear resistance and scratch resistance, and a preparation method thereof.
The technical scheme of the invention is as follows: a preparation method of acrylic polyurethane metal flashing base color coating special for interior and exterior decorations of urban rail vehicles and locomotives is characterized in that the 2K acrylic polyurethane flashing base color coating can improve the grade of the urban rail vehicles and locomotives and manufacture noble, beautiful and colorful decorative effects; simultaneously, the service life of the coating can be prolonged, the wear resistance and the scratch resistance are excellent, and 1, the preparation method of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives is characterized by comprising the following steps:
the formula of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises two parts of main body pre-dispersed slurry and auxiliary coating:
the main body coating in the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following raw materials in percentage by weight:
wherein: the mixed solvent A is colorless liquid formed by mixing S100, butyl acetate and PMA organic solvent according to the proportion of 50:30: 20;
the drier is organic tin drier;
the dispersant is hyperbranched acrylate;
the flatting agent is modified siloxane;
the aluminum powder orientation agent is liquid
The defoaming agent is BYK141
The auxiliary coating in the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following raw materials in parts by weight:
50-70 parts of HDI isocyanate and 50-30 parts of mixed solvent B;
wherein: the mixed solvent B is colorless liquid formed by mixing dimethylbenzene and anhydrous butyl acetate according to the proportion of 1:1 or 7: 3;
secondly, the preparation method of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following steps:
A. preparing main body pre-dispersing slurry:
preparing a mixed solvent A: uniformly mixing S100/butyl acetate/PMA according to the ratio of 50:30:20 for later use;
preparing main body pre-dispersing slurry:
a. preparing materials according to the formula, pouring aluminum powder or copper powder, the mixed solvent A and the dispersing agent into a dispersing cylinder 1 according to the weight ratio of 1:1:0.06 in sequence, soaking for 12 hours, starting a dispersing machine, adjusting the rotating speed to 400r/min, and stirring at a low speed for 30min for later use;
b. pouring low-hydroxyl acrylic resin into a dispersion cylinder 2 according to the weight ratio, pouring a mixed solvent A accounting for 5 percent of the weight ratio of the low-hydroxyl acrylic resin into the dispersion cylinder 2, starting a dispersion machine, adjusting the rotating speed to 800r/min, stirring uniformly at medium speed, then sequentially adding the rest mixed solvent A, a drier, a flatting agent, a defoaming agent and a silver powder orientation agent under stirring, after finishing feeding, adjusting the rotating speed of the dispersion machine to 500r/min, slowly adding the soaked aluminum powder into the dispersion cylinder 1 under stirring, after finishing feeding, adjusting the rotating speed of the dispersion machine to 800r/min, and after dispersing at high speed for 10-15 minutes, obtaining main body pre-dispersion slurry;
c. and then, detecting chromatic aberration and viscosity, detecting chromatic aberration by adopting a BYK/spectro-guide/45/0 model chromatometer, and detecting viscosity by adopting a coating-4 # cup, wherein the technical requirements are as follows: the color difference delta E is less than or equal to 2.0, the viscosity is 55-60 seconds, the surface is flat and smooth, and no coarse particles exist;
d. if the main body pre-dispersed slurry for detection does not meet the technical requirements, the following procedures are required to be carried out:
if the color difference delta E of the main body pre-dispersion slurry is more than or equal to 2.0, continuously adding a proper amount of color master according to the color difference, and detecting again after high-speed dispersion is carried out for 10-15 minutes until the requirement is met;
after the color difference and the viscosity of the main body pre-dispersed slurry meet the technical requirements at the same time, filtering the main body pre-dispersed slurry by using a screen with 80-120 meshes to remove mechanical impurities to obtain the main body acrylic polyurethane metal flashing base color coating, and packaging the main body acrylic polyurethane metal flashing base color coating by using an iron bucket for later use;
B. preparing an auxiliary coating:
pouring HDI isocyanate and the mixed solvent B into a cylinder according to the weight ratio, mixing and stirring uniformly, filtering by a 120-mesh 200-mesh screen to obtain an auxiliary coating, and packaging by an iron bucket for later use;
C. preparation of 2K metal flashing base color coating for interior and exterior decorations of urban rail vehicles and locomotives: when in use, the main coating and the auxiliary coating are mixed and prepared uniformly according to the weight ratio of 5:1, and a proper amount of mixed solvent A is added to dilute the mixture to the construction viscosity for spraying construction.
The main reaction mechanism of the invention is as follows:
isocyanate on the aliphatic isocyanate reacts with hydroxyl on the low-hydroxyl acrylic resin to generate carbamate, and finally the carbamate reacts to form a high-molecular three-dimensional network structure to form a film.
The silver powder has a problem of arrangement in the coating due to its flake structure, and if the arrangement of the silver powder is not well controlled, the color cannot meet the requirements, and the silver powder is not easy to construct and is easy to flower, and finally the decorative effect is influenced. Therefore, how to control the silver powder arrangement and avoid the floating is a problem that must be solved by each formulator and constructor, and the silver powder arrangement has two simple forms, i.e., disordered arrangement and parallel arrangement. The silver powder flake structures are arranged in a disordered manner and are uniformly arranged in all directions; the silver powder flake structures are all directionally and parallelly arranged with the surface of the paint film in parallel arrangement. The disordered arrangement and the parallel arrangement are obviously different in appearance, and the silver powder floating is caused by the uneven arrangement of the silver powder, namely the arrangement of the silver powder in different areas of a paint film is different, so that the whole color is black and white or has cloud patterns.
The disordered arrangement of the silver powder is easy to occur under the following conditions, so that the disordered arrangement of the silver powder can be controlled according to the conditions, (1) the paint film is thicker, particularly, the paint film sprayed by a single way is thicker; (2) the surface drying of the paint film is slow; (3) the components in the paint have poor intermiscibility, particularly the resin has poor intermiscibility; (4) the paint material has stronger thixotropy in a spraying state or has higher viscosity in the spraying state; (5) the paint contains large-particle-size particles such as a delustering agent, a filler and the like. The larger the particles are, the more the silver powder tends to be arranged in disorder; and conversely, tend to be arranged in parallel. For example, the filling material is added into the silver paint, when the dispersion fineness is large, the silver powder is arranged disorderly, and the arrangement tends to be parallel along with the reduction of the fineness. The dispersion degree of the anti-settling agent and the silver powder arrangement auxiliary agent also influences the arrangement of the silver powder; (6) the arrangement of the silver powder tends to be disordered after the silver powder is blackened due to factors such as acid, alkali and storage in the paint.
The silver powder parallel arrangement is controlled under the following conditions, so that the silver powder can be controlled to be directionally and parallelly arranged. (1) The paint film is thin, particularly the thin single-channel spraying dry film is easy to arrange evenly, (2) the surface of the paint film is dried quickly; (3) the paint components have good intermiscibility and good fluidity; (4) the paint has certain thixotropy in a spraying state, but cannot be too strong; (5) the system contains insoluble particles such as anti-settling agent, etc. which are dispersed sufficiently finely;
the main coating raw materials comprise low-hydroxyl acrylic resin, metal pigment, auxiliary agent and mixed solvent;
the low-hydroxyl acrylic resin in the main coating has the characteristics of quick drying, good solvent release, favorability for arrangement and orientation of metal pigment and the like; the metallic pigment is used as a coloring pigment; the drier, the flatting agent and the silver powder directing agent are all organic modification aids, namely the drier adopts organic tin drier and liquid. The leveling agent is organic silicon leveling agent or liquid. The silver powder directing agent is liquid.
The mixed solvent is colorless liquid prepared by mixing aromatic hydrocarbon, lipid and ether ester organic solvent at a certain ratio, such as colorless liquid prepared by mixing S100, butyl acetate and PMA organic solvent at a certain ratio of 50:30: 20.
The auxiliary coating raw material comprises HDI aliphatic isocyanate and a mixed solvent; wherein: the HDI aliphatic isocyanate is colorless transparent liquid. The mixed solvent is colorless liquid formed by mixing dimethylbenzene and anhydrous butyl acetate according to the proportion of 1:1 or 7: 3.
The main technical indexes of the experiment of the invention are as follows:
technical index
Drawings
FIG. 1 is a process flow diagram of the subject coating of the present invention.
FIG. 2 is a process flow diagram of the auxiliary coating of the present invention.
Detailed Description
A preparation method of 2K metal flashing base color paint for interior and exterior decorations of urban rail vehicles and locomotives is characterized by comprising the following steps:
the formula of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises two parts of main body pre-dispersed slurry and auxiliary coating:
the main body coating in the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following raw materials in parts by weight:
wherein:
the low-hydroxyl acrylic resin is Taiwan modest product 2050 (solid content 50, hydroxyl value 2.0, acid value 8)
The mixed solvent A is colorless liquid formed by mixing S100, butyl acetate and PMA organic solvent according to the proportion of 50:30: 20;
the drier is organic tin drier;
the dispersant is hyperbranched acrylate;
the flatting agent is modified siloxane;
the aluminum powder orientation agent is liquid
The defoaming agent is BYK141
The auxiliary coating in the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following raw materials in parts by weight:
50 parts of HDI isocyanate and 50 parts of mixed solvent B;
wherein: the mixed solvent B is colorless liquid formed by mixing dimethylbenzene and anhydrous butyl acetate according to the proportion of 7: 3;
secondly, the preparation method of the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following steps:
A. preparing main body pre-dispersing slurry:
preparing a mixed solvent A: uniformly mixing S100/butyl acetate/PMA according to the ratio of 50:30:20 for later use;
preparing main body pre-dispersing slurry:
a. firstly, pouring aluminum powder, a mixed solvent A and a dispersing agent into a dispersing cylinder 1 according to the weight ratio of 1:1:0.06 in sequence, soaking for 12 hours, starting a dispersing machine, adjusting the rotating speed to 400r/min, and stirring at a low speed for 30min for later use;
b. pouring low-hydroxyl acrylic resin into a dispersion cylinder 2 according to the weight ratio, pouring a mixed solvent A accounting for 5 percent of the weight ratio of the low-hydroxyl acrylic resin into the dispersion cylinder 2, starting a dispersion machine, adjusting the rotating speed to 800r/min, stirring uniformly at medium speed, then sequentially adding the rest mixed solvent A, a drier, a flatting agent, a defoaming agent and a silver powder orientation agent under stirring, after finishing feeding, adjusting the rotating speed of the dispersion machine to 500r/min, slowly adding the soaked aluminum powder into the dispersion cylinder 1 under stirring, after finishing feeding, adjusting the rotating speed of the dispersion machine to 800r/min, and after dispersing at high speed for 10-15 minutes, obtaining main body pre-dispersion slurry;
c. and then, detecting chromatic aberration and viscosity, detecting chromatic aberration by adopting a BYK/spectro-guide/45/0 model chromatometer, and detecting viscosity by adopting a coating-4 # cup, wherein the technical requirements are as follows: the color difference delta E is less than or equal to 2.0, the viscosity is 55-60 seconds, the surface is flat and smooth, and no coarse particles exist;
d. if the main body pre-dispersed slurry for detection does not meet the technical requirements, the following procedures are required to be carried out:
if the color difference delta E of the main body pre-dispersion slurry is more than or equal to 2.0, continuously adding a proper amount of color master according to the color difference, and detecting again after high-speed dispersion is carried out for 10-15 minutes until the requirement is met;
after the color difference and the viscosity of the main body pre-dispersed slurry meet the technical requirements at the same time, filtering the main body pre-dispersed slurry by using a screen with 80-120 meshes to remove mechanical impurities to obtain the main body acrylic polyurethane metal flashing base color coating, and packaging the main body acrylic polyurethane metal flashing base color coating by using an iron bucket for later use;
B. preparing an auxiliary coating:
pouring HDI isocyanate and the mixed solvent B into a cylinder according to the weight ratio, mixing and stirring uniformly, filtering by a 120-mesh 200-mesh screen to obtain an auxiliary coating, and packaging by an iron bucket for later use;
C. preparation of 2K metal flashing base color coating for interior and exterior decorations of urban rail vehicles and locomotives: when in use, the main coating and the auxiliary coating are mixed and prepared uniformly according to the weight ratio of 5:1, and a proper amount of mixed solvent A is added to dilute the mixture to the construction viscosity for spraying construction.
Claims (2)
1. A preparation method of 2K metal flashing base color paint for interior and exterior decorations of urban rail vehicles and locomotives is characterized by comprising the following steps:
the formula of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises two parts of main body pre-dispersed slurry and auxiliary coating:
the weight ratio of the raw materials of the main body pre-dispersed slurry in the 2K metal glittering base color coating for the interior and exterior decoration of the urban rail vehicles and the locomotives is as follows:
wherein:
the mixed solvent A is colorless liquid formed by mixing S100, butyl acetate and PMA organic solvent according to the proportion of 50:30: 20;
the drier is organic tin drier;
the dispersant is hyperbranched acrylate;
the flatting agent is modified siloxane;
the silver powder directing agent is liquid
The defoaming agent is BYK141
The auxiliary coating in the 2K metal flashing base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following raw materials in parts by weight:
50 parts of HDI isocyanate and 50 parts of mixed solvent B;
wherein: the mixed solvent B is colorless liquid formed by mixing dimethylbenzene and anhydrous butyl acetate according to the proportion of 1:1 or 7: 3;
secondly, the preparation method of the 2K metal glittering base color coating for the interior and exterior decorations of the urban rail vehicles and the locomotives comprises the following steps:
A. preparing main body pre-dispersing slurry:
preparing a mixed solvent A: uniformly mixing S100, butyl acetate and PMA according to the ratio of 50:30:20 for later use;
preparing main body pre-dispersing slurry:
a. firstly, pouring aluminum powder or copper powder, a mixed solvent A and a dispersing agent into a dispersing cylinder 1 in sequence according to the weight ratio of 1:1:0.06, soaking for 12 hours, then starting a dispersing machine, adjusting the rotating speed to 400r/min, and stirring at a low speed for 30min for later use;
b. pouring low-hydroxyl acrylic resin into a dispersion cylinder 2 according to the weight ratio, pouring a mixed solvent A accounting for 5 percent of the weight of the low-hydroxyl acrylic resin into the dispersion cylinder 2, starting a dispersion machine, adjusting the rotating speed to 800r/min, stirring uniformly at medium speed, then sequentially adding the rest mixed solvent A, a drier, a flatting agent, a defoaming agent and a silver powder orientation agent under a stirring state, after finishing feeding, adjusting the rotating speed of the dispersion machine to 500r/min, slowly adding the soaked aluminum powder into the dispersion cylinder 1 under a stirring state, adjusting the rotating speed of the dispersion machine to 800r/min after feeding, and dispersing at high speed for 10-15 minutes to obtain main body pre-dispersion slurry;
c. and then, detecting chromatic aberration and viscosity, detecting chromatic aberration by adopting a BYK/spectro-guide/45/0 model chromatometer, and detecting viscosity by adopting a coating-4 # cup, wherein the technical requirements are as follows: the color difference delta E is less than or equal to 2.0, the viscosity is 55-60 seconds, the surface is flat and smooth, and no coarse particles exist;
d. if the main body pre-dispersed slurry for detection does not meet the technical requirements, the following procedures are required to be carried out:
if the color difference delta E of the main body pre-dispersion slurry is more than or equal to 2.0, continuously adding a proper amount of color master according to the color difference, and detecting again after high-speed dispersion is carried out for 10-15 minutes until the requirement is met;
after the color difference and the viscosity of the main body pre-dispersed slurry meet the technical requirements at the same time, filtering the main body pre-dispersed slurry by using a screen with 80-120 meshes to remove mechanical impurities to obtain the main body acrylic polyurethane metal flashing base color coating, and packaging the main body acrylic polyurethane metal flashing base color coating by using an iron bucket for later use;
B. preparing an auxiliary coating:
pouring HDI isocyanate and the mixed solvent B into a cylinder according to the weight ratio, mixing and stirring uniformly, filtering by a 120-mesh 200-mesh screen to obtain an auxiliary coating, and packaging by an iron bucket for later use;
C. preparation of 2K metal flashing base color coating for interior and exterior decorations of urban rail vehicles and locomotives: when in use, the main coating and the auxiliary coating are mixed and prepared uniformly according to the weight ratio of 5:1, and a proper amount of mixed solvent A is added to dilute the mixture to the construction viscosity for spraying construction.
2. The 2K metal glittering base paint for the interior and exterior decorations of urban rail vehicles and locomotives, which is prepared by the method of claim 1.
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| CN201711427878.3A CN108129969B (en) | 2017-12-26 | 2017-12-26 | 2K acrylic polyurethane metal flashing base color coating special for interior and exterior decorations of urban rail vehicles and locomotives and preparation method thereof |
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| CN109207043A (en) * | 2018-08-29 | 2019-01-15 | 成都展辰涂料有限公司 | A kind of environment-friendly water-based modified polyurethane retouches silver-colored paint |
| CN109294424A (en) * | 2018-08-29 | 2019-02-01 | 成都展辰涂料有限公司 | A kind of environment-friendly water-based modified polyurethane is painted in gold paint |
| CN111218183A (en) * | 2020-03-26 | 2020-06-02 | 河南东澳化工有限公司 | Preparation method of high-whiteness flash metallic paint |
| CN116082937A (en) * | 2022-12-05 | 2023-05-09 | 株洲市九华新材料涂装实业有限公司 | Polyurethane frosted finish paint for rail transit vehicle parts and preparation method and application thereof |
| CN116904098A (en) * | 2023-08-15 | 2023-10-20 | 株洲市九华新材料涂装实业有限公司 | Water-based metallic flashing base paint and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459478A (en) * | 2002-12-12 | 2003-12-03 | 合肥海尔信息产品有限公司 | Dicomponent paint and technology of spray coating on television set shell body |
| CN101096541A (en) * | 2006-06-30 | 2008-01-02 | 佛山市顺德区汉达精密电子科技有限公司 | Dual-component priming paint |
| CN104629605A (en) * | 2015-02-02 | 2015-05-20 | 广东雅图化工有限公司 | Single-component water-based metal flashing paint and preparation method thereof |
| CN105585947A (en) * | 2016-03-15 | 2016-05-18 | 广东绿色大地化工有限公司 | Water-based acrylic acid shining paint and preparation method thereof |
-
2017
- 2017-12-26 CN CN201711427878.3A patent/CN108129969B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459478A (en) * | 2002-12-12 | 2003-12-03 | 合肥海尔信息产品有限公司 | Dicomponent paint and technology of spray coating on television set shell body |
| CN101096541A (en) * | 2006-06-30 | 2008-01-02 | 佛山市顺德区汉达精密电子科技有限公司 | Dual-component priming paint |
| CN104629605A (en) * | 2015-02-02 | 2015-05-20 | 广东雅图化工有限公司 | Single-component water-based metal flashing paint and preparation method thereof |
| CN105585947A (en) * | 2016-03-15 | 2016-05-18 | 广东绿色大地化工有限公司 | Water-based acrylic acid shining paint and preparation method thereof |
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