CN113372797A - High-gloss high-fullness UV coating and preparation method thereof - Google Patents
High-gloss high-fullness UV coating and preparation method thereof Download PDFInfo
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- CN113372797A CN113372797A CN202110731166.0A CN202110731166A CN113372797A CN 113372797 A CN113372797 A CN 113372797A CN 202110731166 A CN202110731166 A CN 202110731166A CN 113372797 A CN113372797 A CN 113372797A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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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
- C09D7/47—Levelling agents
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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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Abstract
The invention provides a high-gloss high-fullness UV coating and a preparation method thereof. The preparation method of the high-gloss high-fullness UV coating comprises the following steps: s1, weighing 30-60 parts by weight of polyester acrylate emulsion and 20-40 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring; s2, adding 0.1-0.5 part by weight of defoaming agent and 0.2-0.5 part by weight of neutralizing agent while stirring, and controlling the rotation speed at 800-; s3, reducing the rotation speed to 600-800R/min and adding 1-5 parts by weight of rheological agent for uniform dispersion; s4, pre-mixing 3-8 parts by weight of film-forming aid and 8-15 parts by weight of deionized water uniformly, and then adding while stirring for uniform dispersion. And S5, finally, respectively adding 0.1-0.5 part by weight of wetting agent and 0.5-1 part by weight of leveling agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
Description
Technical Field
The invention relates to a high-gloss high-fullness UV coating and a preparation method thereof.
Background
The ultraviolet light curing coating, referred to as UV coating for short, is a coating film formed by using high-energy ultraviolet light as curing energy and using a photoinitiator in the coating to generate free radicals or cations under the ultraviolet irradiation condition so as to initiate the cross-linking polymerization reaction of oligomer and active diluent molecules in the coating. Compared with the traditional thermosetting coating, the UV coating has the characteristics of high curing speed, low VOC (volatile organic compound) emission, suitability for high-speed automatic processing and the like. For example, chinese patent CN201110047998.7 discloses a UV curable coating, which comprises a primer and a finish, wherein the primer comprises epoxy acrylate resin, high functional group urethane acrylate resin, high functional group monomer, monofunctional group monomer, thermoplastic acrylic resin, photoinitiator 184, silicone leveling assistant, amino organosilane copolymer and organic solvent; the finish paint comprises: the epoxy resin comprises hexafunctional group urethane acrylate resin, phenolic aldehyde modified epoxy acrylate, thermoplastic acrylic resin, trifunctional group monomer, photoinitiator 184, organic silicon leveling auxiliary agent, amino organosilane copolymer and organic solvent. However, the coating still has the problems of low gloss, poor leveling, poor adhesion and the like.
Disclosure of Invention
The invention provides a high-gloss high-fullness UV coating and a preparation method thereof, which can effectively solve the problems.
The invention is realized by the following steps:
the invention provides a high-gloss high-fullness UV coating, which comprises the following components in percentage by weight: 30-60 parts of polyester acrylate emulsion, 20-40 parts of polyurethane acrylate emulsion, 3-8 parts of film forming additive, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of neutralizing agent, 8-15 parts of deionized water, 1-5 parts of rheological agent, 0.1-0.5 part of wetting agent and 0.5-1 part of flatting agent.
The invention further provides a preparation method of the high-gloss high-fullness UV coating, which comprises the following steps:
s1, weighing 30-60 parts by weight of polyester acrylate emulsion and 20-40 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring;
s2, adding 0.1-0.5 part by weight of defoaming agent and 0.2-0.5 part by weight of neutralizing agent while stirring, and controlling the rotation speed at 800-;
s3, reducing the rotating speed to 600-800R/min and adding 1-5 parts by weight of rheological agent for uniform dispersion;
s4, pre-mixing 3-8 parts by weight of film-forming aid and 8-15 parts by weight of deionized water uniformly, and then adding while stirring for uniform dispersion.
And S5, finally, respectively adding 0.1-0.5 part by weight of wetting agent and 0.5-1 part by weight of leveling agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
The invention has the beneficial effects that: the high-gloss high-fullness UV coating provided by the invention is a water-based environment-friendly coating, has the characteristics of high leveling property, high gloss, good fullness and the like, and also has the advantages of excellent chemical resistance, convenience in construction, contribution to saving cost and environmental protection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of a preparation method of a high-gloss high-fullness UV coating provided by an embodiment of the invention.
FIG. 2 is a photograph of a high gloss high fullness UV coating provided in example 2 of the present invention after high temperature cycling.
Fig. 3 is a photograph of the UV coating provided by comparative example 2 of the present invention after high temperature cycling.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention further provides a high gloss high fullness UV coating, comprising: 30-60 parts of polyester acrylate emulsion, 20-40 parts of polyurethane acrylate emulsion, 3-8 parts of film forming additive, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of neutralizing agent, 8-15 parts of deionized water, 1-5 parts of rheological agent, 0.1-0.5 part of wetting agent and 0.5-1 part of flatting agent.
As a further improvement, the film forming auxiliary agent comprises one or more of ethylene glycol monobutyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether. In one embodiment, the coalescing agent is diethylene glycol butyl ether, dipropylene glycol methyl ether in a 1:1 mixture. The neutralizing agent is selected from the group consisting of overbased organic amines, and in one embodiment, the neutralizing agent is selected from the group consisting of BG95 overbased organic amines. The wetting agent is selected from acetylene glycol surface active agents. In one embodiment, the wetting agent is a pentyne diol surfactant. The leveling agent is selected from isophorone or diacetone alcohol. In one embodiment, the leveling agent is isophorone.
As a further improvement, the rheological agent is nano titanium dioxide. When the nano titanium dioxide is used as the rheological agent, the nano titanium dioxide can be cured by UV light rays in the curing process, and at the moment, the hydrophilicity of the nano titanium dioxide (so that the binding performance of hydrophilic groups in other components) can be greatly improved by irradiating the nano titanium dioxide by the UV light rays, and the leveling performance of the nano titanium dioxide is improved.
As a further improvement, the flatting agent is a 1073 or 1074 type polysiloxane acrylic flatting agent.
Referring to fig. 1, the present invention further provides a method for preparing a high gloss and high fullness UV coating, comprising the following steps:
s1, weighing 30-60 parts by weight of polyester acrylate emulsion and 20-40 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring;
s2, adding 0.1-0.5 part by weight of defoaming agent and 0.2-0.5 part by weight of neutralizing agent while stirring, and controlling the rotation speed at 800-;
s3, reducing the rotating speed to 600-800R/min and adding 1-5 parts by weight of rheological agent for uniform dispersion;
s4, pre-mixing 3-8 parts by weight of film-forming aid and 8-15 parts by weight of deionized water uniformly, and then adding while stirring for uniform dispersion.
And S5, finally, respectively adding 0.1-0.5 part by weight of wetting agent and 0.5-1 part by weight of leveling agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
As a further improvement, in step S2, the reason for reducing the rotation speed can prevent the generation of bubbles due to too high rotation speed, and prevent the local overheating and coarsening phenomenon due to the viscosity increase caused by the powder addition during the stirring process. More preferably, the rotation speed is reduced to 700R/min.
As a further improvement, in step S3, the rheological agent is nano titanium dioxide, and in step S3, the method further comprises irradiating the nano titanium dioxide with UV light to increase the hydrophilicity thereof.
As a further improvement, the irradiation time for irradiating the nano titanium dioxide with UV light to improve the hydrophilicity is 5-10 minutes. Because the hydrophilic property of the nano titanium dioxide can be changed along with the irradiation of the UV light, the hydrophilic property of the nano titanium dioxide can be improved by irradiating the nano titanium dioxide with the UV light before mixing, and the overall rheological property of the coating is further changed.
Example 1
Weighing 50 parts by weight of polyester acrylate emulsion and 30 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring; adding 0.3 part by weight of defoaming agent and 0.4 part by weight of neutralizing agent while stirring, and controlling the rotating speed to 1200R/min for dispersing for 10 minutes; reducing the rotating speed to 700R/min, adding 3 parts by weight of nano titanium dioxide, and uniformly dispersing; 2.5 parts by weight of diethylene glycol butyl ether, 2.5 parts by weight of dipropylene glycol methyl ether and 10 parts by weight of deionized water are mixed uniformly in advance, and then added while stirring, and uniformly dispersed; and finally, respectively adding 0.3 part by weight of wetting agent and 0.8 part by weight of flatting agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
Test example: the UV coating in example 1 was tested as follows, and the test results are shown in table 1.
Table 1 shows the test data of the UV coating of example 1
Example 2
Weighing 50 parts by weight of polyester acrylate emulsion and 30 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring; adding 0.3 part by weight of defoaming agent and 0.4 part by weight of neutralizing agent while stirring, and controlling the rotating speed to 1200R/min for dispersing for 10 minutes; reducing the rotating speed to 700R/min, adding 3 parts by weight of nano titanium dioxide irradiated by UV rays (for 10 minutes), and uniformly dispersing; 2.5 parts by weight of diethylene glycol butyl ether, 2.5 parts by weight of dipropylene glycol methyl ether and 10 parts by weight of deionized water are mixed uniformly in advance, and then added while stirring, and uniformly dispersed; and finally, respectively adding 0.3 part by weight of wetting agent and 0.8 part by weight of flatting agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
Test example: the UV coating in example 2 was tested as follows, the results of which are shown in table 2.
Table 2 shows the test data of the UV coating of example 2
Comparative example 1
Weighing 50 parts by weight of polyester acrylate emulsion and 30 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring; adding 0.3 part by weight of defoaming agent and 0.4 part by weight of neutralizing agent while stirring, and controlling the rotating speed to 1200R/min for dispersing for 10 minutes; reducing the rotating speed to 1000R/min, adding 3 parts by weight of nano titanium dioxide, and uniformly dispersing; 2.5 parts by weight of diethylene glycol butyl ether, 2.5 parts by weight of dipropylene glycol methyl ether and 10 parts by weight of deionized water are mixed uniformly in advance, and then added while stirring, and uniformly dispersed; and finally, respectively adding 0.3 part by weight of wetting agent and 0.8 part by weight of flatting agent while stirring, and uniformly dispersing to obtain the UV coating.
Test example: the UV coating in comparative example 1 was tested as follows, and the test results are shown in table 3.
Table 3 shows the test data of the UV coating in comparative example 1
Comparative example 2
Weighing 50 parts by weight of polyester acrylate emulsion and 30 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring; adding 0.3 part by weight of defoaming agent and 0.4 part by weight of neutralizing agent while stirring, and controlling the rotating speed to 1200R/min for dispersing for 10 minutes; reducing the rotating speed to 1000R/min, adding 3 parts by weight of nano titanium dioxide subjected to UV irradiation, and uniformly dispersing; 2.5 parts by weight of diethylene glycol butyl ether, 2.5 parts by weight of dipropylene glycol methyl ether and 10 parts by weight of deionized water are mixed uniformly in advance, and then added while stirring, and uniformly dispersed; and finally, respectively adding 0.3 part by weight of wetting agent and 0.8 part by weight of flatting agent while stirring, and uniformly dispersing to obtain the UV coating.
Test example: the UV coating in comparative example 2 was tested as follows, and the test results are shown in table 4.
Table 4 shows the test data of the UV coating in comparative example 1
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (8)
1. A high-gloss high-fullness UV coating is characterized by comprising the following components: 30-60 parts of polyester acrylate emulsion, 20-40 parts of polyurethane acrylate emulsion, 3-8 parts of film forming additive, 0.1-0.5 part of defoaming agent, 0.2-0.5 part of neutralizing agent, 8-15 parts of deionized water, 1-5 parts of rheological agent, 0.1-0.5 part of wetting agent and 0.5-1 part of flatting agent.
2. The high gloss high fullness UV coating of claim 1 wherein said coalescent comprises one or more of ethylene glycol monobutyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether, and dipropylene glycol butyl ether.
3. The high gloss high fullness UV coating of claim 1 wherein said rheological agent is nano titanium dioxide.
4. The high gloss high fullness UV coating of claim 1 wherein said nano titanium dioxide is UV light treated nano titanium dioxide.
5. The high gloss high fullness UV coating of claim 1 wherein said leveling agent is a type 1073 or 1074 polysiloxane acrylic leveling agent.
6. A preparation method of a high-gloss high-fullness UV coating is characterized by comprising the following steps:
s1, weighing 30-60 parts by weight of polyester acrylate emulsion and 20-40 parts by weight of polyurethane acrylate emulsion, and uniformly mixing and stirring;
s2, adding 0.1-0.5 part by weight of defoaming agent and 0.2-0.5 part by weight of neutralizing agent while stirring, and controlling the rotation speed at 800-;
s3, reducing the rotating speed to 600-800R/min and adding 1-5 parts by weight of rheological agent for uniform dispersion;
s4, pre-mixing 3-8 parts by weight of film-forming aid and 8-15 parts by weight of deionized water uniformly, and then adding while stirring for uniform dispersion;
and S5, finally, respectively adding 0.1-0.5 part by weight of wetting agent and 0.5-1 part by weight of leveling agent while stirring, and uniformly dispersing to obtain the high-gloss high-fullness UV coating.
7. The method of claim 6, wherein in step S3, the rheological agent is nano-titania, and in step S3, the method further comprises irradiating the nano-titania with UV light to increase its hydrophilicity.
8. The method of claim 6, wherein the irradiation time for irradiating the nano-titanium dioxide with UV light to increase the hydrophilicity is 5 to 10 minutes.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702957A (en) * | 2012-06-21 | 2012-10-03 | 南京工业大学 | Water-based uv-curable composite paint for glass fiber insulating sleeve, and preparation method thereof |
| CN102850897A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Light cured hydrophilic coating and preparation method thereof |
| CN104673080A (en) * | 2013-11-27 | 2015-06-03 | 李应芝 | Antistatic water-borne UV coating |
| CN108300200A (en) * | 2017-12-23 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of waterborne UV coating and preparation method thereof |
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- 2021-06-29 CN CN202110731166.0A patent/CN113372797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850897A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Light cured hydrophilic coating and preparation method thereof |
| CN102702957A (en) * | 2012-06-21 | 2012-10-03 | 南京工业大学 | Water-based uv-curable composite paint for glass fiber insulating sleeve, and preparation method thereof |
| CN104673080A (en) * | 2013-11-27 | 2015-06-03 | 李应芝 | Antistatic water-borne UV coating |
| CN108300200A (en) * | 2017-12-23 | 2018-07-20 | 湛江正信科技服务有限公司 | A kind of waterborne UV coating and preparation method thereof |
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