CN113736324A - Special high-solid-content low-viscosity acrylic amino baking varnish coating for commercial vehicle and production process thereof - Google Patents
Special high-solid-content low-viscosity acrylic amino baking varnish coating for commercial vehicle and production process thereof Download PDFInfo
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- CN113736324A CN113736324A CN202110815368.3A CN202110815368A CN113736324A CN 113736324 A CN113736324 A CN 113736324A CN 202110815368 A CN202110815368 A CN 202110815368A CN 113736324 A CN113736324 A CN 113736324A
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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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
- 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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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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Abstract
The invention discloses a special high-solid-content low-viscosity acrylic amino baking varnish coating for commercial vehicles, which comprises high-solid acrylic resin, high-solid amino resin, pigment, solvent and auxiliary agent, and has the beneficial effects that the construction solid content is more than 60%, the DOI is more than 85%, the L value is less than 15, and the S value is less than 25, so that the construction solid content and the appearance can be ensured, the coating has good physical and chemical properties, and the construction viscosity can be effectively reduced by using a ketone solvent. The paint has the advantages of low viscosity in the whole paint system, low organic solvent consumption, good appearance, hard and wear-resistant finished paint surface and favorable covering power of a coating due to proper pigment ratio.
Description
Technical Field
The invention relates to the technical field of commercial vehicle paint, in particular to a high-solid-content low-viscosity acrylic acid amino baking paint special for commercial vehicles and a production process thereof.
Background
With the development of the times, environmental protection gradually becomes a problem to be faced by the coating industry, the traditional coating has more volatile organic solvents, and a large amount of toxic and harmful gases are often emitted in the film forming and drying processes, so the environment-friendly high-solid-content coating has the advantages of environmental protection and high solid content
Coatings have become a major development. At present, the application of the coating with high solid content and low viscosity in the field of domestic commercial vehicles is less, and the conditions that the requirements of construction solid content and appearance cannot be met simultaneously exist, for example, the solid content can meet the requirements but the appearance is poor, or the appearance is qualified but the construction solid content is low, so in view of the problems, the scheme is generated by intensive research.
Disclosure of Invention
The invention aims to solve the problems, designs the special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and a production process thereof, and solves the technical problems that the existing high-solid-content low-viscosity coating is less in application in the field of domestic commercial vehicles and cannot meet the requirements of construction solid content and appearance simultaneously, if the solid content can meet the requirements, the appearance is poor, or the appearance is qualified but the construction solid content is low.
The technical scheme of the invention for realizing the aim is as follows: the special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle comprises high-solid acrylic resin, high-solid amino resin, pigment, solvent and an auxiliary agent.
Preferably, the high-solid amino resin comprises: butylated amino resins and methyl etherified amino resins.
Preferably, the pigment comprises: titanium dioxide, iron oxide yellow and carbon black.
Preferably, the auxiliary agent comprises: anti-settling agent, anti-sagging agent, leveling agent, dispersing agent and drying accelerator.
Preferably, the solvent comprises: ester solvents, alcohol solvents, ketone solvents and ether solvents.
Preferably, the high-solid acrylic resin comprises 30-40 parts by weight of a dispersant, 0.5-1 part by weight of a leveling agent, 0.2-0.4 part by weight of an anti-sagging agent, 0.8-1 part by weight of an anti-settling agent, 0.5-1 part by weight of a butylated amino resin, 10-15 parts by weight of a methylated amino resin, 5-10 parts by weight of a methylated amino resin, 23-27 parts by weight of a pigment, 2-5 parts by weight of an alcohol solvent, 6-10 parts by weight of an ester solvent, 1-3 parts by weight of an ether solvent, 5-10 parts by weight of a ketone solvent and 0.5-1 part by weight of a drier.
Preferably, the high-solid acrylic resin has a resin solid content of 75%.
The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process comprise the following steps: step S1, mixing and stirring at high speed; step S2, pre-mixing; step S3, grinding; step S4, adding materials again and stirring at a low speed;
step S1, mixing the high-solid acrylic resin with the anti-sagging agent, and stirring at a high speed;
the step S2, adding an alcohol solvent, an anti-settling agent, a dispersing agent and pigment powder into the mixture of the high-solid acrylic resin and the anti-sagging agent in the step S1 in sequence, and then stirring uniformly to form a premix;
step S3, grinding the premix material obtained in the step S3 for 12 hours, and discharging the material into a stirring kettle;
and S4, adding the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier into a stirring kettle in sequence, and stirring at a low speed.
Preferably, the stirring speed of step S1 is not lower than 1000r/min, and the time is about 30 min.
Preferably, the stirring speed in the step S4 is 200-400 rpm, and after the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier are added in sequence, the speed is increased to 400-1000 rpm, and the stirring is continued for 0.5-1.5 hours to obtain the finished coating.
The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process have the advantages that the construction solid content is more than 60%, the DOI is more than 85, the L value is less than 15, and the S value is less than 25, so that the construction solid content and the appearance can be ensured, the coating has good physical and chemical properties, and the construction viscosity can be effectively reduced by using the ketone solvent. The paint has the advantages of low viscosity in the whole paint system, low organic solvent consumption, good appearance, hard and wear-resistant finished paint surface and favorable covering power of a coating due to proper pigment ratio.
Drawings
FIG. 1 shows the production method of the special high-solid low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process.
Detailed Description
The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle comprises high-solid acrylic resin, high-solid amino resin, pigment, solvent and auxiliary agent, wherein the high-solid amino resin comprises: butylated amino resins and methyl etherified amino resins, the pigment comprising: titanium white powder, iron oxide yellow and carbon black, the auxiliary agent includes: the anti-settling agent, the anti-sagging agent, the flatting agent, the dispersing agent and the drier are adopted, and the solvent comprises: an ester solvent and an alcohol solvent, the high-solid acrylic resin comprises, by mass, 30-40 parts of a ketone solvent and an ether solvent, 0.5-1 part of a dispersant, 0.2-0.4 part of a leveling agent, 0.8-1 part of an anti-sagging agent, 0.5-1 part of an anti-settling agent, 10-15 parts of a butylated amino resin, 5-10 parts of a methyl etherified amino resin, 23-27 parts of a pigment, 2-5 parts of an alcohol solvent, 6-10 parts of an ester solvent, 1-3 parts of an ether solvent, 5-10 parts of a ketone solvent, 0.5-1 part of a drier, and 75% of resin solid content.
The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process comprise the following steps: step S1, mixing and stirring at high speed; step S2, pre-mixing; step S3, grinding; step S4, adding materials again and stirring at a low speed; step S1, mixing the high-solid acrylic resin with the anti-sagging agent, and stirring at a high speed, wherein the stirring speed of the step S1 is not lower than 1000r/min, and the time is about 30 min; step S2, adding an alcohol solvent, an anti-settling agent, a dispersing agent and pigment powder into the mixture of the high-solid acrylic resin and the anti-sagging agent in the step S1 in sequence, and stirring uniformly to form a premix; step S3, grinding the premix material obtained in the step S3 for 12 hours, and discharging the material into a stirring kettle; and S4, sequentially adding the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier into a stirring kettle, stirring at a low speed, wherein the stirring speed in the step S4 is 200-400 rpm, and after the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier are sequentially added, increasing the speed to 400-1000 rpm, and continuously stirring for 0.5-1.5 h to obtain a finished coating.
From the above general situation it follows that: the novel resin with better appearance is added with pigment, auxiliary agent and solvent for mixed grinding to prepare a finished product, the self-made novel resin can ensure the construction solid content and the appearance and has good physical and chemical properties, the use of ketone solvent can effectively reduce the construction viscosity, and the novel resin has the advantages of lower viscosity in the whole coating system, less organic solvent consumption, excellent appearance and the like, the VOC content is less than or equal to 420g/L during construction, the construction solid content is more than or equal to 60 percent, the DOI is more than 85, the L value is less than 15, the S value is less than 25, the finished product paint surface is hard and wear-resistant, and the coating has good covering power by proper color base ratio, and the construction parameters of the invention are as follows: construction viscosity: 25-30S/25 ℃, construction temperature: and (3) at 18-30 ℃, construction humidity: 40-70%; the coating process flow of the invention is as follows: the cab is subjected to manual soot blowing, then is manually wiped clean, then is manually pre-supplemented, then is sprayed with the coating to the outer surface of the cab through 2 robots, is subjected to normal-temperature leveling, and finally is roasted at 140 ℃ for 20 min.
The rotary cup setting parameters of the large-area robot of the cab body are as follows:
the detection result of the embodiment of the invention is as follows:
the technical solutions described above only represent the preferred technical solutions of the present invention, and some possible changes to some parts of the technical solutions will represent the principles of the present invention, and fall within the scope of the present invention.
Claims (10)
1. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle comprises high-solid acrylic resin, high-solid amino resin, pigment, solvent and an auxiliary agent.
2. The commercial vehicle-specific high-solid low-viscosity acrylic amino baking varnish coating of claim 1, wherein the high-solid amino resin comprises: butylated amino resins and methyl etherified amino resins.
3. The commercial vehicle-specific high-solids low-viscosity acrylic amino baking varnish coating of claim 1, wherein the pigment comprises: titanium dioxide, iron oxide yellow and carbon black.
4. The commercial vehicle-specific high-solids low-viscosity acrylic amino baking varnish coating of claim 1, wherein the auxiliary agent comprises: anti-settling agent, anti-sagging agent, leveling agent, dispersing agent and drier.
5. The commercial vehicle-specific high-solid low-viscosity acrylic amino baking varnish coating and the production process thereof according to claim 1, wherein the solvent comprises: ester solvents, alcohol solvents, ketone solvents and ether solvents.
6. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle as claimed in claim 5, wherein the high-solid-content acrylic resin is 30-40 parts by weight, the dispersant is 0.5-1 part by weight, the leveling agent is 0.2-0.4 part by weight, the anti-sagging agent is 0.8-1 part by weight, the anti-settling agent is 0.5-1 part by weight, the butylated amino resin is 10-15 parts by weight, the methyl etherified amino resin is 5-10 parts by weight, the pigment is 23-27 parts by weight, the alcohol solvent is 2-5 parts by weight, the ester solvent is 6-10 parts by weight, the ether solvent is 1-3 parts by weight, the ketone solvent is 5-10 parts by weight, and the drier is 0.5-1 part by weight.
7. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process thereof as claimed in claim 1, wherein the resin solid content of the high-solid acrylic resin is 75%.
8. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process are characterized by comprising the following steps of: step S1, mixing and stirring at high speed; step S2, pre-mixing; step S3, grinding; step S4, feeding again and stirring at low speed;
step S1, mixing the high-solid acrylic resin with the anti-sagging agent, and stirring at a high speed;
the step S2, adding an alcohol solvent, an anti-settling agent, a dispersing agent and pigment powder into the mixture of the high-solid acrylic resin and the anti-sagging agent in the step S1 in sequence, and then stirring uniformly to form a premix;
step S3, grinding the premix material obtained in the step S3 for 12 hours, and discharging the ground premix material into a stirring kettle;
and S4, adding the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier into a stirring kettle in sequence, and stirring at a low speed.
9. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process thereof as claimed in claim 8, wherein the stirring speed of the step S1 is not lower than 1000r/min, and the time is about 30 min.
10. The special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle and the production process of the special high-solid-content low-viscosity acrylic amino baking varnish coating for the commercial vehicle as claimed in claim 8, wherein the stirring speed in the step S4 is 200-400 rpm, and after the butylated amino resin, the methyl etherified amino resin, the leveling agent, the ester solvent, the ketone solvent and the drier are added in sequence, the stirring speed is increased to 400-1000 rpm, and the stirring is continued for 0.5-1.5 hours, so that a finished coating product is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815368.3A CN113736324A (en) | 2021-07-19 | 2021-07-19 | Special high-solid-content low-viscosity acrylic amino baking varnish coating for commercial vehicle and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815368.3A CN113736324A (en) | 2021-07-19 | 2021-07-19 | Special high-solid-content low-viscosity acrylic amino baking varnish coating for commercial vehicle and production process thereof |
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| CN113736324A true CN113736324A (en) | 2021-12-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH101595A (en) * | 1996-06-19 | 1998-01-06 | Dainippon Ink & Chem Inc | Curable resin composition and coating method using the same |
| CN102719159A (en) * | 2012-07-18 | 2012-10-10 | 常州华狮化工有限公司 | Preparation method of energy-saving environment-friendly low-temperature high light-retaining oil |
| CN109400797A (en) * | 2018-09-19 | 2019-03-01 | 江苏三木化工股份有限公司 | A kind of High performance industrial baking vanish acrylic resin and preparation method thereof |
| CN112226121A (en) * | 2020-09-10 | 2021-01-15 | 重庆华辉涂料有限公司 | High-gloss water-based varnish and preparation method thereof |
| CN112592632A (en) * | 2020-12-15 | 2021-04-02 | 天津科瑞达涂料化工有限公司 | High-solid automotive finishing varnish and preparation method and application thereof |
-
2021
- 2021-07-19 CN CN202110815368.3A patent/CN113736324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH101595A (en) * | 1996-06-19 | 1998-01-06 | Dainippon Ink & Chem Inc | Curable resin composition and coating method using the same |
| CN102719159A (en) * | 2012-07-18 | 2012-10-10 | 常州华狮化工有限公司 | Preparation method of energy-saving environment-friendly low-temperature high light-retaining oil |
| CN109400797A (en) * | 2018-09-19 | 2019-03-01 | 江苏三木化工股份有限公司 | A kind of High performance industrial baking vanish acrylic resin and preparation method thereof |
| CN112226121A (en) * | 2020-09-10 | 2021-01-15 | 重庆华辉涂料有限公司 | High-gloss water-based varnish and preparation method thereof |
| CN112592632A (en) * | 2020-12-15 | 2021-04-02 | 天津科瑞达涂料化工有限公司 | High-solid automotive finishing varnish and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 于国玲等: "新型高固体分涂料的最新研究进展", 《弹性体》 * |
| 孙金惠等: "高固体份涂料在商用车涂装线上的应用", 《2020中国汽车工程学会年会论文集》 * |
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