CN112210263A - UV-cured coating with water-drop-shaped effect and preparation method thereof - Google Patents
UV-cured coating with water-drop-shaped effect and preparation method thereof Download PDFInfo
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- CN112210263A CN112210263A CN202010986150.XA CN202010986150A CN112210263A CN 112210263 A CN112210263 A CN 112210263A CN 202010986150 A CN202010986150 A CN 202010986150A CN 112210263 A CN112210263 A CN 112210263A
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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
- C09D133/04—Homopolymers or copolymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/061—Special surface effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
-
- 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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- C09D5/002—Priming paints
-
- 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
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
-
- 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
Abstract
The invention relates to a UV-cured coating with a water-drop-shaped effect and a using method thereof, wherein the coating is divided into a finish paint A and a primer B, and the finish paint A comprises the following components in parts by weight: 55-65 parts of UV curing resin, 5-10 parts of UV photo-initiation monomer, 1.0-3.5 parts of photoinitiator, 0.5-1.5 parts of auxiliary agent and 20-30 parts of solvent; the primer B comprises the following components in parts by weight: 85-100 parts of finish paint A and 0-15 parts of universal color paste; the UV curing resin is a mixed resin of three resins, namely Eternal 6071, Eternal 6172-1 and Eternal 621A-80. Compared with the prior art, the invention has the advantages of rapid drying, energy saving, environmental protection, excellent performance, adjustable water drop effect and the like.
Description
Technical Field
The invention relates to the technical field of UV (ultraviolet) coatings, in particular to a UV-cured coating with a water-drop-shaped effect and a using method thereof.
Background
At present, with the strictness of national environmental protection policies, the solventless process of coating products is increasingly tightened, and in order to meet the environmental protection requirements, the research of UV coatings becomes a hotspot. The UV coating has the advantages of high curing speed, less solvent, strong chemical resistance, high surface gloss and the like. However, UV coatings are currently used more in the field of varnishes and in the field of thin-coating inks. This is because the pigment can refract, reflect and absorb light, and can prevent ultraviolet ray from extending into the interior of coating layer to initiate curing action, and the varnish and colour ink can be easily penetrated by light because of thin coating layer thickness. In the face of UV coatings with excellent properties, unfortunately, the use of UV coatings is limited in the application field where the coatings are thick and colored, and finding additional solutions is a hot and difficult point.
In addition, the water drop-shaped effect paint has high ornamental value and practical value, has strong three-dimensional sense, can decorate the surface of a general rough substrate, and can ensure the protection effect of a surface coating. The existing preparation of the water-drop-shaped effect paint still adopts polyurethane acrylate resin, compared with UV paint, the paint has the traditional disadvantages of large energy consumption, slow curing speed and the like, but the UV paint has excellent performance, but has the problems of incapability of recoating, poor recoating adhesion, easy falling off and the like in the using process, and the size of water drops can not be regulated, so the application of the paint in the water-drop-shaped artistic effect paint is limited.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the UV-cured coating with the water-drop effect and the preparation method thereof, and the UV-cured coating is quick to dry, energy-saving and environment-friendly, has excellent performance and adjustable effect and has good industrial foundation.
The purpose of the invention can be realized by the following technical scheme: a UV-cured coating with a water-drop-shaped effect is divided into a finish paint A and a primer B, wherein the finish paint A comprises the following components in parts by weight:
the primer B comprises the following components in parts by weight:
85-100 parts of a finish paint A,
0-15 parts of universal color paste.
The UV curing resin is a mixed resin of three resins, namely a solvent type acrylate oligomer such as Eternal 6071, has the functionality of 6 and the molecular weight of 10000-20000, and is relatively soft and high in toughness; the polyurethane acrylate oligomer is Eternal 6172-1, the functionality is 2, the molecular weight is 10000-20000, the leveling property is good, the wear resistance is good, and the epoxy acrylate oligomer is Eternal 621A-80, the functionality is 2, the molecular weight is 500-1000, and the hardness is high; the three resins are also commonly called 'UV resins', and the molecular structure of the three resins contains a large number of double bond groups, and the double bond groups can be initiated by a photoinitiator to polymerize to form a cross-linked reticular polymer coating structure; the coating has good wear resistance and chemical resistance.
The UV curing resin is high-gloss resin with matched hardness and softness, high functionality and low functionality, has high polarity and high gloss, and can form transparency after curing, thereby providing a certain foundation for the later water-drop-shaped effect. In addition, the resin composition has excellent recoatability to the resin composition, and after the resin composition is cured, the adhesive force can reach 0 grade; meanwhile, the resin combination cannot wet itself, so that a foundation is provided for the drop-shaped artistic effect formed in the spraying process.
The resin composition has excellent adhesive force to common ABS and PC/ABS materials; moreover, the resin combination adopted by the invention has the characteristics of high curing efficiency and high curing speed. Meanwhile, the deep curing agent is matched, so that the paint can be completely cured when the paint content is not high and the film thickness is about 20 mu m. These provide a basis for their ability to be used as primers.
Further, the mixing weight ratio of Eternal 6071, Eternal 6172-1 and Eternal 621A-80 is 2:2: 1.
The UV light-induced monomer is one or more of tripropylene glycol diacrylate, beta-hydroxyethyl methacrylate, tetrahydrofuran methyl methacrylate, phenoxyethyl acrylate and vinyl acetate.
The photoinitiator is one or more of a photoinitiator BP, a photoinitiator 184 and a photoinitiator TPO.
The auxiliary agent is one or more of a leveling agent Efka FL 3777, a leveling agent BYK-113, BYK-310 and TEGO GLIDE 100. The size of the water drops formed by the invention can be adjusted by changing surface additives such as a leveling agent, and the adjustment is realized by changing the wettability of the whole coating through adding the additives.
The solvent is one or more of ethyl acetate, butyl acetate and diisobutyl ketone.
The universal color paste is formed by dispersing the pigment containing the effect pigment into a diluent through the wetting action of a wetting agent and the dispersing action of a dispersing agent and grinding the pigment to the fineness of less than 15 mu m by a grinder.
The use method of the UV curing water drop-shaped effect coating comprises the following steps:
the first step is as follows: weighing the components in parts by weight, and preparing a finish paint A and a primer B respectively;
the second step is that: spraying the primer B on a substrate according to a construction standard, and completely curing by UV lamp light irradiation;
the third step: and spraying the finish paint A on the base paint formed by the cured primer B according to the construction standard, naturally forming a drop-shaped artistic effect, and curing by irradiating UV light again.
Furthermore, the thickness of the film formed after the primer B is completely cured in the second step is 19-22 μm.
Compared with the prior art, the invention has the following advantages:
1. the UV coating curing system adopted by the invention has obvious advantages on the traditional acrylate water drop effect coating, namely the advantages of the UV novel coating on the traditional acrylate coating, such as high hardness, good chemical corrosion resistance, high curing speed, low energy consumption, energy conservation, environmental protection and the like,
2. meanwhile, the water drop-shaped artistic effect of the UV coating is increased, the coating has good ornamental value, the water drop-shaped artistic effect is formed on the surface by utilizing the characteristic that the top coating has good adhesive force to the primary coating but cannot be completely wetted, the ornamental value is increased, the use field of the coating is widened, and the coating can be widely applied to the fields of automotive interiors, interior wall coatings, furniture coatings and the like;
3. the primer and the finish have similar formula systems, so that the preparation process of the coating is simplified, the primer is the finish and universal color paste, the formula blending flow is simplified for the color mixing process, and meanwhile, the primer and the finish can be universal under the condition that the color paste is fully prepared;
4. the artistic effects of the color of the primer, the size of the water drop and the like can be adjusted, and a space for further artistic creation is reserved. Meanwhile, the color of the primer can be adjusted by adjusting the universal color paste;
5. the top coat has excellent adhesion to the primary coat and recoatability.
Drawings
FIG. 1 is a diagram of the droplet effect of the UV curable droplet effect coating of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The following examples are given in detail to illustrate the embodiments and specific procedures of the present invention, but the scope of the present invention is not limited to the following examples.
Examples 1 to 4
Preparing finish paint A according to the following parts by weight:
| component name | Example 1 | Example 2 | Example 3 | Example 4 |
| UV curable resin | 55 | 65 | 65 | 60 |
| Tripropylene glycol diacrylate | 10 | 0 | 5 | 8 |
| Beta-hydroxyethyl methacrylate | 0 | 5 | 5 | 0 |
| Photoinitiator BP | 3.5 | 0 | 0 | 0 |
| Photoinitiator 184 | 0 | 1.0 | 2.3 | 1.7 |
| Photoinitiator TPO | 0 | 0 | 1.2 | 0.8 |
| Leveling agent Efka FL 3777 | 1.5 | 0 | 1.5 | 0.5 |
| Leveling agent BYK-113 | 0 | 0.5 | 0 | 0 |
| Ethyl acetate | 30 | 28.5 | 0 | 0 |
| Acetic acid butyl ester | 0 | 0 | 20 | 0 |
| Diisobutyl ketone | 0 | 0 | 0 | 29 |
Preparing a primer B according to the following parts by weight:
| component name | Example 1 | Example 2 | Example 3 | Example 4 |
| Finish A | 85 | 100 | 90 | 90 |
| Universal black paste | 15 | 0 | 10 | 10 |
And spraying the primer B on a substrate according to the construction standard, forming a film with the thickness of about 20 mu m after the primer B is completely cured by UV lamp light irradiation, spraying the finish paint A on the primer formed by the cured primer B according to the construction standard, naturally forming a drop-shaped artistic effect, and curing by UV lamp light irradiation again.
The results of the coating tests in examples 1-4 above are shown in the following table:
the coating prepared by the UV curing coating with the water drop effect retains the excellent performance of the UV coating, and has strong adhesive force, strong chemical resistance and high surface gloss.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The UV-cured coating with the water-drop-shaped effect is characterized by comprising a finish paint A and a primer B, wherein the finish paint A comprises the following components in parts by weight:
the primer B comprises the following components in parts by weight:
85-100 parts of a finish paint A,
0-15 parts of universal color paste.
2. The UV-curable coating material with a drop-like effect according to claim 1, wherein the UV-curable resin is a mixture of three resins, each resin being a solvent-based acrylate oligomer, having a functionality of 6 and a molecular weight of 10000-20000; the polyurethane acrylate oligomer has the functionality of 2 and the molecular weight of 10000-20000; and an epoxy acrylate oligomer, the functionality of which is 2, and the molecular weight of which is 500-1000.
3. The UV-curable droplet effect paint according to claim 2, wherein the solvent-based acrylate oligomer, the urethane acrylate oligomer and the epoxy acrylate oligomer are mixed in a weight ratio of 2:2: 1.
4. The UV-curable droplet effect paint of claim 1, wherein the UV light-initiating monomer is one or more of tripropylene glycol diacrylate, beta-hydroxyethyl methacrylate, tetrahydrofuryl methacrylate, phenoxyethyl acrylate, and vinyl acetate.
5. The UV-curable droplet effect paint of claim 1, wherein the photoinitiator is one or more of a photoinitiator BP, a photoinitiator 184, and a photoinitiator TPO.
6. The UV-curable droplet effect paint of claim 1, wherein the auxiliary agent is one or more of leveling agent Efka FL 3777, leveling agent BYK-113, BYK-310 and TEGO GLIDE 100.
7. The UV-curable droplet effect paint of claim 1, wherein the solvent is one or more of ethyl acetate, butyl acetate, and diisobutyl ketone.
8. The UV-curable droplet effect paint according to claim 1, wherein the universal mill base is prepared by wetting a pigment containing effect pigment with a wetting agent, dispersing the pigment into a diluent with a dispersing agent, and grinding the pigment to a fineness of less than 15 μm.
9. A method of preparing a UV curable droplet effect paint according to claim 1, comprising the steps of:
the first step is as follows: weighing the components in parts by weight, and preparing a finish paint A and a primer B respectively;
the second step is that: spraying the primer B on a substrate according to a construction standard, and completely curing by UV lamp light irradiation;
the third step: and spraying the finish paint A on the primer paint formed by the cured primer paint B according to the construction standard, and curing by irradiating UV light again.
10. The use method of the UV-curable coating with a droplet effect according to claim 9, wherein the thickness of the film formed after the primer B is completely cured in the second step is 19-22 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986150.XA CN112210263A (en) | 2020-09-18 | 2020-09-18 | UV-cured coating with water-drop-shaped effect and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986150.XA CN112210263A (en) | 2020-09-18 | 2020-09-18 | UV-cured coating with water-drop-shaped effect and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112210263A true CN112210263A (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010986150.XA Pending CN112210263A (en) | 2020-09-18 | 2020-09-18 | UV-cured coating with water-drop-shaped effect and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134437A (en) * | 2011-02-28 | 2011-07-27 | 上虞市佑谦特种材料有限公司 | UV (ultraviolet)-curing glass coating paint |
| CN103113822A (en) * | 2013-01-23 | 2013-05-22 | 浙江佑谦特种材料有限公司 | Ultraviolet light curable coating with dewdrop effect and preparation method and coating method thereof |
| CN104559698A (en) * | 2014-12-11 | 2015-04-29 | 惠州市长润发涂料有限公司 | Yellowing-resistant UV (ultraviolet) transparent primer for electrostatic spraying |
| CN110434038A (en) * | 2019-08-03 | 2019-11-12 | 协荣精密器件(东莞)有限公司 | A kind of coating process of mobile phone glass dorsal shield |
-
2020
- 2020-09-18 CN CN202010986150.XA patent/CN112210263A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134437A (en) * | 2011-02-28 | 2011-07-27 | 上虞市佑谦特种材料有限公司 | UV (ultraviolet)-curing glass coating paint |
| CN103113822A (en) * | 2013-01-23 | 2013-05-22 | 浙江佑谦特种材料有限公司 | Ultraviolet light curable coating with dewdrop effect and preparation method and coating method thereof |
| CN104559698A (en) * | 2014-12-11 | 2015-04-29 | 惠州市长润发涂料有限公司 | Yellowing-resistant UV (ultraviolet) transparent primer for electrostatic spraying |
| CN110434038A (en) * | 2019-08-03 | 2019-11-12 | 协荣精密器件(东莞)有限公司 | A kind of coating process of mobile phone glass dorsal shield |
Non-Patent Citations (1)
| Title |
|---|
| 罗春华等: "《材料制备与性能测试实验》", 31 July 2019, 机械工业出版社 * |
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Application publication date: 20210112 |