CN111073478A - High-covering-rate finish UV coating and preparation method thereof - Google Patents
High-covering-rate finish UV coating and preparation method thereof Download PDFInfo
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- CN111073478A CN111073478A CN201911418037.5A CN201911418037A CN111073478A CN 111073478 A CN111073478 A CN 111073478A CN 201911418037 A CN201911418037 A CN 201911418037A CN 111073478 A CN111073478 A CN 111073478A
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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
- 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
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a high-covering finish UV coating and a preparation method thereof, wherein the high-covering finish UV coating comprises the following components in percentage by mass: 20 to 32 percent of polyester modified acrylate; 10 to 20 percent of aliphatic polyurethane acrylate; photoinitiator (2): 0.1 to 1.8 percent of 2-hydroxy-2-methyl-phenyl acetone and 2 to 5 percent of mixed initiator; 20 to 40 percent of titanium dioxide; dispersing agent: 0.1 to 5 percent of modified polyurethane polymer; leveling agent: 0.1 to 2.0 percent of polysiloxane polyether copolymer; active diluent: 1-5% of tripropylene glycol diacrylate, 7.5-25% of dipropylene glycol diacrylate and 1-5% of trimethylolpropane triacrylate; 0.1 to 1.8 percent of silicon-fluorine copolymer; 3% -18% of silicon dioxide; the mixed initiator is trimethyl phenyl acyl diphenyl phosphine oxide and diacyl phosphine oxide; the mass ratio of the trimethylphenyl acyl diphenyl phosphine oxide to the diacyl phosphine oxide is 3: 1. the high-covering-rate finish UV coating has high covering rate and good adhesive force and leveling property.
Description
Technical Field
The invention relates to the technical field of photocureable coatings, and particularly relates to a high-covering-rate finish UV coating and a preparation method thereof.
Background
The UV coating is a commonly used coating at present, a liquid material with chemical activity is initiated by ultraviolet light to be polymerized and crosslinked and cured into a solid material, only radiation energy used for a photoinitiator is needed, the situation that solvents for dilution are removed by heating and evaporation like thermal curing or volatile coatings is avoided, and the UV coating is particularly suitable for some heat-sensitive materials and can be used as finish paint on the surfaces of various substrates. However, the existing finish paint UV coating still has some problems to be solved, and cannot meet some application requirements, for example, in terms of application requirements for high hiding, the prior art (chinese patent CN 103031034B) discloses a white finish paint photocuring UV coating, which has good adhesion and leveling property, but has low hiding rate due to low content of titanium dioxide (generally 8-12 wt%), and cannot be used as a high hiding finish paint. The prior common finish paint can not achieve high coverage rate only by one finish paint, and at least two finishes are needed to achieve the requirement of high coverage rate, so that the working procedures are increased, and the performance of recoating the finish paint is inferior to that of one finish paint. To achieve high coverage, the content of titanium dioxide in the UV coating needs to be increased (at least to 20 wt%), so that the thickness of the finish (10-40 μm) when the UV coating is used can be increased, but the thickness is increased, so that the curing process of the coating on the surface of the finish and the coating inside the finish is different during UV curing, and the adhesion and leveling property are affected.
Disclosure of Invention
The invention aims to provide a high-covering-rate finish paint UV coating which has high covering rate, good adhesive force and good leveling property.
The invention also aims to provide a preparation method of the UV coating for the high-covering-rate finish paint.
In order to solve the technical problems, the invention adopts the technical scheme that:
the UV coating of the high-covering finish paint comprises the following components in percentage by mass:
20 to 32 percent of polyester modified acrylate; 10 to 20 percent of aliphatic polyurethane acrylate; photoinitiator (2): 0.1 to 1.8 percent of 2-hydroxy-2-methyl-phenyl acetone and 2 to 5 percent of mixed initiator; 20 to 40 percent of titanium dioxide; dispersing agent: 0.1 to 5 percent of modified polyurethane polymer; leveling agent: 0.1 to 2.0 percent of polysiloxane polyether copolymer; active diluent: 1-5% of tripropylene glycol diacrylate, 7.5-25% of dipropylene glycol diacrylate and 1-5% of trimethylolpropane triacrylate; 0.1 to 1.8 percent of silicon-fluorine copolymer; 3% -18% of silicon dioxide;
the mixed initiator is trimethyl phenyl acyl diphenyl phosphine oxide and diacyl phosphine oxide; the mass ratio of the trimethylphenyl acyl diphenyl phosphine oxide to the diacyl phosphine oxide is 3: 1.
preferably, the high-hiding finish UV coating comprises the following components in percentage by mass: 22 to 28 percent of polyester modified acrylate; 12 to 15 percent of aliphatic polyurethane acrylate; photoinitiator (2): 1 to 1.8 percent of 2-hydroxy-2-methyl-phenyl acetone and 2 to 3.5 percent of mixed initiator; 22 to 35 percent of titanium dioxide; dispersing agent: 0.2 to 1.5 percent of modified polyurethane polymer; leveling agent: 0.1 to 1.2 percent of polysiloxane polyether copolymer; active diluent: 2-4% of tripropylene glycol diacrylate, 7.7-15% of dipropylene glycol diacrylate and 2-4% of trimethylolpropane triacrylate; 0.1 to 1.8 percent of silicon-fluorine copolymer; 3 to 18 percent of silicon dioxide.
The polyester modified acrylate has the functionality of 2, the molecular weight of 2-4 ten thousand and the viscosity of 3000-5000 mPa & s at 25 ℃.
The aliphatic polyurethane acrylate has the functionality of 6, the molecular weight of 1-2 ten thousand and the viscosity of 8000 +/-100 mPa & s at 25 ℃.
The dispersant is modified polyurethane polymer.
The leveling agent is polysiloxane polyether copolymer.
The preparation method of the high-covering-rate finish UV coating comprises the following steps:
s1, mixing polyester modified acrylate and aliphatic polyurethane acrylate, adding a dispersing agent while stirring, and continuing stirring;
s2, adding titanium dioxide, uniformly stirring, and grinding;
s3, adding the reactive diluent under the stirring condition, then adding the rest polyester modified acrylate, the rest aliphatic polyurethane acrylate and the photoinitiator, putting the mixture into a paint making cylinder, and uniformly stirring;
s4, adding silicon dioxide, and uniformly stirring;
s5, adding the leveling agent and the silicon-fluorine copolymer under the stirring condition, and uniformly stirring.
In the step S2, the grinding is to grind the mixture to a fineness of 10-15 microns.
Compared with the prior art, the invention has the beneficial effects that:
according to the high-covering-rate finish paint UV paint, the formula of the UV paint is improved, so that the problem that the existing UV paint cannot be used as a high-covering-rate finish paint due to low covering rate is solved, and the problem that the adhesion and leveling property are influenced due to the fact that the curing process of the paint on the surface and inside of the finish paint is different during UV curing due to high titanium dioxide content is solved. The high-covering-rate finish UV coating has high covering rate and good adhesive force and leveling property. Further, the covering rate is improved and the stain resistance is also improved.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The raw materials in the examples are all commercially available; reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated.
Wherein, the functionality of the polyester modified acrylate is 2, the molecular weight is 2-4 ten thousand, the viscosity at 25 ℃ is 3000-5000 mPa.s, the polyester modified acrylate is purchased from sea polymer material science and technology (Guangzhou) limited, and the specific trade marks of the manufacturers are as follows: hydraer UV 1010;
the aliphatic polyurethane acrylate has the functionality of 6, the molecular weight of 1-2 ten thousand and the viscosity of 8000 +/-100 mPa.s at 25 ℃, is purchased from sea polymer material science and technology (Guangzhou) limited, and has specific brands as follows: hydraer UV 3404;
the mixed initiator is trimethyl phenyl acyl diphenyl phosphine oxide and diacyl phosphine oxide, wherein the mass ratio of the trimethyl phenyl acyl diphenyl phosphine oxide to the diacyl phosphine oxide is 3: 1, the mixed initiator can be purchased from sea polymer material science and technology (Guangzhou) limited, and the specific brands of the manufacturers are as follows: hydraer UV 3404;
the modified polyurethane polymer is purchased from sea polymer material science and technology (Guangzhou) limited company, and the specific brands of the manufacturers are as follows: hydraer UV 3104;
the polysiloxane polyether copolymer is purchased from sea polymer material science and technology (Guangzhou) limited company, and the specific brands of the manufacturers are as follows: hydraer UV 3204;
the silicon-fluorine copolymer is purchased from sea polymer material science and technology (Guangzhou) limited company, and the specific brands of the manufacturers are as follows: hydraer UV 3205.
Examples and comparative examples
The ingredients and specific amounts of the UV coating for the high hiding finishes of the examples and comparative examples are shown in tables 1 and 2, and the preparation methods are as follows:
s1, mixing polyester modified acrylate and aliphatic polyurethane acrylate, adding a dispersing agent while stirring, and continuing stirring;
s2, adding titanium dioxide, uniformly stirring, and grinding until the fineness is 10-15 micrometers;
s3, adding reactive diluents (tripropylene glycol diacrylate, dipropylene glycol diacrylate and trimethylolpropane triacrylate) under the stirring condition, then adding the rest polyester modified acrylate and aliphatic polyurethane acrylate, and adding a photoinitiator (2-hydroxy-2-methyl-phenyl acetone and a mixed initiator) into a paint making cylinder, and uniformly stirring;
s4, adding silicon dioxide, and uniformly stirring;
s5, adding the leveling agent and the silicon-fluorine copolymer under the stirring condition, and uniformly stirring.
TABLE 1
TABLE 2
Testing
And respectively testing various performance indexes of the prepared high-covering-rate finish UV coating, wherein the test standards are shown in the following tables 3 and 4:
TABLE 3
Note ⊙ for best, ◎ for best, ○ for good, and/for general.
TABLE 4
Note ⊙ for best, ◎ for best, ○ for good, and/for general.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The UV coating for the high-covering finish paint is characterized by comprising the following components in percentage by mass:
20 to 32 percent of polyester modified acrylate;
10 to 20 percent of aliphatic polyurethane acrylate;
photoinitiator (2): 0.1 to 1.8 percent of 2-hydroxy-2-methyl-phenyl acetone and 2 to 5 percent of mixed initiator;
20 to 40 percent of titanium dioxide;
dispersing agent: 0.1 to 5 percent of modified polyurethane polymer;
leveling agent: 0.1 to 2.0 percent of polysiloxane polyether copolymer;
active diluent: 1-5% of tripropylene glycol diacrylate, 7.5-25% of dipropylene glycol diacrylate and 1-5% of trimethylolpropane triacrylate;
0.1 to 1.8 percent of silicon-fluorine copolymer;
3% -18% of silicon dioxide;
the mixed initiator is trimethyl phenyl acyl diphenyl phosphine oxide and diacyl phosphine oxide; the mass ratio of the trimethylphenyl acyl diphenyl phosphine oxide to the diacyl phosphine oxide is 3: 1.
2. the high hiding topcoat UV coating of claim 1, comprising the following components in mass percent:
22 to 28 percent of polyester modified acrylate;
12 to 15 percent of aliphatic polyurethane acrylate;
photoinitiator (2): 1 to 1.8 percent of 2-hydroxy-2-methyl-phenyl acetone and 2 to 3.5 percent of mixed initiator;
22 to 35 percent of titanium dioxide;
dispersing agent: 0.2 to 1.5 percent of modified polyurethane polymer;
leveling agent: 0.1 to 1.2 percent of polysiloxane polyether copolymer;
active diluent: 2-4% of tripropylene glycol diacrylate, 7.7-15% of dipropylene glycol diacrylate and 2-4% of trimethylolpropane triacrylate;
0.1 to 1.8 percent of silicon-fluorine copolymer;
3 to 18 percent of silicon dioxide.
3. The high hiding topcoat UV coating of claim 1, wherein said polyester modified acrylate has a functionality of 2, a molecular weight of 2 to 4 million, and a viscosity of 3000 to 5000 mPa-s at 25 ℃.
4. The high hiding topcoat UV coating of claim 1 wherein said aliphatic urethane acrylate has a functionality of 6, a molecular weight of 1 to 2 million, and a viscosity of 8000 ± 100 mPa-s at 25 ℃.
5. The high hiding topcoat UV coating of claim 1, wherein said dispersant is a modified polyurethane polymer.
6. The high hiding topcoat UV coating of claim 1, wherein the leveling agent is a polysiloxane polyether copolymer.
7. The preparation method of the high-hiding finish UV coating of any one of claims 1 to 6, characterized by comprising the following steps:
s1, mixing polyester modified acrylate and aliphatic polyurethane acrylate, adding a dispersing agent while stirring, and continuing stirring;
s2, adding titanium dioxide, uniformly stirring, and grinding;
s3, adding the reactive diluent under the stirring condition, then adding the rest polyester modified acrylate, the rest aliphatic polyurethane acrylate and the photoinitiator, and uniformly stirring;
s4, adding silicon dioxide, and uniformly stirring;
s5, adding the leveling agent and the silicon-fluorine copolymer under the stirring condition, and uniformly stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418037.5A CN111073478A (en) | 2019-12-31 | 2019-12-31 | High-covering-rate finish UV coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911418037.5A CN111073478A (en) | 2019-12-31 | 2019-12-31 | High-covering-rate finish UV coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117866513A (en) * | 2024-03-12 | 2024-04-12 | 海聚高分子材料科技（广州）有限公司 | Deep-curable UV solid-color coating and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031034A (en) * | 2012-12-12 | 2013-04-10 | 澳达树熊涂料(惠州)有限公司 | White finish coat photocurable UV (ultraviolet) paint and preparation method thereof |
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2019
- 2019-12-31 CN CN201911418037.5A patent/CN111073478A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031034A (en) * | 2012-12-12 | 2013-04-10 | 澳达树熊涂料(惠州)有限公司 | White finish coat photocurable UV (ultraviolet) paint and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117866513A (en) * | 2024-03-12 | 2024-04-12 | 海聚高分子材料科技（广州）有限公司 | Deep-curable UV solid-color coating and preparation method thereof |
| CN117866513B (en) * | 2024-03-12 | 2024-05-31 | 海聚高分子材料科技（广州）有限公司 | Deep-curable UV solid-color coating and preparation method thereof |
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Application publication date: 20200428 |
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