CN115651469A - Anti-doodling matte UV-curable finish paint and preparation method and application thereof - Google Patents
Anti-doodling matte UV-curable finish paint and preparation method and application thereof Download PDFInfo
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- CN115651469A CN115651469A CN202211438978.7A CN202211438978A CN115651469A CN 115651469 A CN115651469 A CN 115651469A CN 202211438978 A CN202211438978 A CN 202211438978A CN 115651469 A CN115651469 A CN 115651469A
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- matte
- doodling
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- graffiti
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- 238000003848 UV Light-Curing Methods 0.000 claims abstract description 24
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- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 claims description 5
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- 239000000203 mixture Substances 0.000 claims description 4
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- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 3
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- FIOCEWASVZHBTK-UHFFFAOYSA-N 2-[2-(2-oxo-2-phenylacetyl)oxyethoxy]ethyl 2-oxo-2-phenylacetate Chemical compound C=1C=CC=CC=1C(=O)C(=O)OCCOCCOC(=O)C(=O)C1=CC=CC=C1 FIOCEWASVZHBTK-UHFFFAOYSA-N 0.000 claims description 2
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- FAQJJMHZNSSFSM-UHFFFAOYSA-N phenylglyoxylic acid Chemical class OC(=O)C(=O)C1=CC=CC=C1 FAQJJMHZNSSFSM-UHFFFAOYSA-N 0.000 claims description 2
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- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coatings, and relates to an anti-doodling matte UV curing finish coating and a preparation method and application thereof, wherein the coating is prepared from 30-40% of fluorine-silicon modified acrylate, 20-30% of matte resin, 20-30% of functional monomer, 4-6% of photoinitiator, 10-15% of matte powder and 2.5-3.5% of auxiliary agent in percentage by mass, wherein the auxiliary agent comprises wetting dispersant, defoamer and anti-doodling auxiliary agent. The paint prepared by the invention has a strong anti-doodling effect, has the characteristics of high hardness, scratch resistance, long-acting anti-doodling and the like, and in the application process, the roller-coated anti-doodling matte UV curing finish paint has the advantages of simple construction process and convenience in operation, and a paint film obtained by construction has the advantages of high hardness, low gloss, good anti-doodling property, lasting anti-doodling property and the like.
Description
Technical Field
The invention belongs to the technical field of coatings, relates to a preparation technology of a UV (ultraviolet) wood coating, and particularly relates to an anti-doodling matte UV curing finish paint and a preparation method and application thereof.
Background
At present, in UV wood coatings on the market, the matte finishing effect is more easily accepted by the market, because the effect of the existing UV anti-doodling matte coating is general, and the gloss of the common anti-doodling bright UV curing finish paint cannot be adjusted, so that the product is single; in addition, the UV anti-graffiti coatings on the market have low durability in the anti-graffiti effect, most UV anti-graffiti coatings are short-time effect, and have no long-time anti-graffiti effect, so that the real anti-graffiti effect cannot be achieved. The aspect of long-acting anti-graffiti performance on the market is blank at present, so that a UV anti-graffiti coating with long-acting anti-graffiti performance is urgently needed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an anti-doodling matte UV curing finish paint and a preparation method and application thereof.
The technical scheme of the invention is as follows:
the anti-doodling matte UV-curable finish paint comprises the following components in percentage by mass:
the fluorine-silicon modified acrylate is obtained by anchoring a grafted fluorine-silicon chain segment in a cross-linked network; the adopted fluorine-silicon modified acrylate resin has the characteristics of high hardness, good stain resistance and the like, and can endow the coating film with good mechanical property and stain resistance.
Wherein, the mass percentage of the fluorine-silicon modified acrylate in all the components of the coating formula is any value within the range of 30-40%, such as 30%, 31%, 32%, 33.5%, 34%, 35%, 36%, 37.5%, 38%, 39%, 40% and the like.
The matte resin is prepared by reacting and synthesizing ultraviolet-curable matte resin by using large molecular weight polyester polyol, diisocyanate and hydroxyl acrylate as main reactants; the matt resin has the characteristic of easy extinction, is used as an auxiliary resin to improve the difficult extinction performance of the fluorosilicone modified acrylate resin, can improve the extinction performance of the coating, and has low gloss and easy realization.
The matte resin may be 20 to 30% by mass, for example, 20%, 21%, 22%, 23.4%, 24%, 25%, 26.2%, 27%, 28.5%, 28%, 29%, 30%, or the like.
The functional monomer is a benzene-free reaction monomer;
the mass percentage of the functional monomer may be any value in the range of 20 to 30%, for example, 20%, 21.5%, 22%, 23%, 24.2%, 25%, 26.5%, 27%, 28.5%, 28%, 29%, 30%, etc.
The auxiliary agent comprises a wetting dispersant, a defoaming agent and an anti-graffiti auxiliary agent, wherein the wetting dispersant is an acrylic copolymer solution with a structure, the defoaming agent is a polymer type defoaming agent without organic silicon, and the anti-graffiti auxiliary agent is a reaction product of hydrogen-terminated dimethyl siloxane and polysiloxane and 2, 2-bis [ [ (1-oxo-2-propenyl) oxo ] methyl ] -1, 3-propylene diacrylate.
Preferably, the anti-doodling matte UV curing finish paint comprises the following components in percentage by mass:
preferably, the anti-doodling matte UV-curable finish paint comprises the following components in percentage by mass:
preferably, the anti-doodling matte UV-curable finish paint comprises the following components in percentage by mass:
preferably, the anti-doodling matte UV-curable finish paint comprises the following components in percentage by mass:
further, the functional monomer comprises one or a mixture of more than two of trimethylolpropane triacrylate (TMPTA), tripropylene glycol diacrylate (TPGDA) and dipentaerythritol hexaacrylate (DPHA);
the monomers adopted by the invention are benzene-free reaction monomers, so that no toluene volatilization occurs before and after the coating is cured, and the environment-friendly requirement is met. Trimethylolpropane triacrylate (TMPTA) is a benzene-free monomer, has high reactivity and high crosslinking density, and can improve the hardness of a coating; tripropylene glycol diacrylate (TPGDA) is a benzene-free monomer, has good dilutability and flexibility, and also has good weather resistance and water resistance; the dipentaerythritol hexaacrylate (DPHA) has high reactivity, high crosslinking density, high wear resistance and water resistance, can greatly improve the hardness of a coating, and can endow a paint film with graffiti resistance and good delustering property when the monomer resin is used in a matching way.
Preferably, the functional monomer can be selected from benzene-free reaction monomer products related to the Changxing chemical engineering of Taiwan China, including EM231-TF, EM223-TF and EM265.
Further, the photoinitiator is any one or more of Methyl Benzoylformate (MBF), 1-hydroxy-cyclohexyl-phenyl ketone (184) and benzoyl formate mixture (UV 754). Preferably, the juveniles JRCure-1104, JRCure-1055 and the Pasteur IRGACURE754.
The photoinitiator can absorb ultraviolet energy, generate free radicals, initiate oligomers and monomers in the coating, realize polymerization and crosslinking, enable the system to be crosslinked into a film, and the matching use of MBF and 184 or 754 can give consideration to low yellowing and low odor of the coating, so that the application field of the coating is further widened.
Furthermore, the auxiliary agent accounts for 2.5-3.5% of the total mass of the formula components, and comprises 1-2% of wetting dispersant, 0.5% of defoaming agent and 0.3-2% of anti-doodling auxiliary agent. For example, the wetting dispersant accounts for 1%, 1.5%, 1.7%, 1.8%, 2%, etc. of the total components by mass percent; for example, the anti-graffiti agent is 0.3%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2%, etc. by mass.
The wetting dispersant is an acrylic copolymer solution with a structure, BYK2009 (BYK chemical company) is selected as the wetting dispersant, the defoaming agent is a polymer type defoaming agent without organic silicon, one or two of BYK055 and a defoaming agent TEGO Airex 920 are selected, and the TEGO RAD 2700 is selected as the anti-graffiti auxiliary agent.
The BYK2009 dispersant is selected, so that the matte powder has good wetting dispersibility, and the problem that the matte powder is too thick can be effectively solved; the coating can generate bubbles in the production and construction processes, the existence of the bubbles can cause defects of a paint film, a defoaming agent is needed for improvement, a 055 (BYK) combined defoaming agent of a TEGO (TeGO) company is selected to provide a good defoaming effect, and a RAD 2700 (radio-assisted radiation) combined defoaming agent of the TEGO company is selected to participate in a UV (ultraviolet) curing reaction, so that the anti-graffiti property and the good water and oil repellency can be provided for a long time, and the anti-graffiti property of the coating film is enhanced.
Further, the matte powder comprises Texaco ACEMATT OK500 matting powder (organic treatment precipitation method silica matting powder) and Grace GRACE RAD2105 matting powder (organic treatment).
The composition of OK500 of ACEMATT degussa and RAD2105 of GRACE Grace is selected, the particle size of the matte powder is small, the surface is treated by organic matters, the gloss of a paint film is effectively and quickly reduced, the thixotropy is low, and the hand feeling of the paint film is smooth.
The invention also provides a preparation method of the anti-doodling matte UV-cured finish paint, which comprises the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, mixing the fluorine-silicon modified acrylate, the matte resin and part of the functional monomer, and dispersing at a rotating speed of 600-800 rpm for 10-15 min;
(2) Adding an auxiliary agent, and dispersing at a high speed for 10-15 min at a rotating speed of 1200-1500 rpm;
(3) Adding a photoinitiator, and dispersing at a high speed for 10-15 min at a rotating speed of 1200-1500 rpm;
(4) Adding the matte powder, dispersing at a medium speed of 600-800 rpm until the matte powder is completely wet, and then dispersing at a high speed for 20min;
(5) Adding the rest functional monomer, dispersing at medium speed of 600-800 rpm for 8-12min, and filtering with 200 meshes.
The viscosity of the prepared coating is 67-73 KU (stormer test at 30 ℃).
Further, the functional monomer added in the step (1) accounts for 60-80% of the mass of the functional monomer.
The invention also protects the application of the anti-doodling matte UV curing finish paint or the anti-doodling matte UV curing finish paint prepared by the preparation method in a paint construction process, wherein the construction process comprises the following steps: uniformly coating the anti-doodling matte UV curing finish paint on the surface of the material with the polished flat primer by using a roller coater, leveling, and performing radiation curing by using an ultraviolet curing machine to obtain a UV matte protective coating;
the method comprises the following specific steps:
step 1, coating the coating material with primer paint, polishing and leveling, and removing dust for later use;
step 2, uniformly coating the anti-doodling matte UV curing finish paint on the surface of the polished and flat material, wherein the coating amount is controlled to be 8-9 g/m 2 ；
Step 3, based on 10 to 12 metersThe conveying speed is set at 380-420 mj/cm in ultraviolet energy 2 The coating film can be completely crosslinked and cured by radiation curing under the condition to form a scrawling-resistant matte protective coating with a defect-free surface;
and 4, packaging the product, and performing offline warehousing.
The invention has the beneficial effects that:
(1) According to the anti-doodling matte UV curing finish paint, the fluorine-silicon modified acrylate resin with high hardness and good stain resistance is adopted, so that a coating film can have good mechanical property and stain resistance; the matte resin which can be cured by ultraviolet light and has the characteristic of easy extinction is used as auxiliary resin to improve the difficult extinction performance of the fluorosilicone modified acrylate resin, so that the extinction performance of the coating can be improved, and the low gloss is easy to realize; in addition, the functional monomer is matched with other components for use, so that the paint film can have scrawling resistance and good easy extinction property; the wetting dispersant in the auxiliary agent has good wetting dispersibility for the matt powder, can effectively solve the problem of pseudo-thickening of the matt powder, the defoaming agent provides a good defoaming effect, and the defect of a paint film caused by bubbles generated in the production and construction processes of the paint is improved or eliminated; the matt powder can effectively and quickly reduce the gloss of a paint film and has smaller thixotropy, so that the paint film has smooth hand feeling.
(2) The anti-doodling matte UV curing finish paint provided by the invention is convenient to construct, quick in leveling and curing in application; the coating film obtained by construction has the characteristics of low gloss, excellent anti-graffiti effect, high hardness, lasting anti-graffiti and the like, and the product coated by the coating is durable in use, and the product quality and the production efficiency can be greatly improved.
Detailed Description
In order to further understand the present invention, the present invention will be further described with reference to the following embodiments, and the technical solutions in the embodiments of the present invention will be clearly and completely described. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The anti-doodling matte UV-cured finish paint comprises the following components in formula shown in Table 1, and the preparation method comprises the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, putting the fluorine-silicon modified acrylate, the matte resin and 70 mass percent of the functional monomer into a dispersion cylinder, setting the rotating speed of a high-speed dispersion machine to be 700 revolutions per minute, and dispersing at a medium speed for 12min;
(2) Adding an auxiliary agent, setting the rotating speed of the high-speed dispersing agent to be 1300 rpm, and dispersing for 13min at a high speed;
(3) Adding a photoinitiator, setting the rotating speed of the high-speed dispersing agent to be 13 rpm, and dispersing for 13min at a high speed;
(4) Adding matte powder, dispersing at a high speed of 700 r/min in a high speed disperser until the matte powder is completely wetted, and dispersing at a high speed of 1400 r/min for 20min;
(5) Adding the rest 30% of functional monomer, setting the rotation speed of high-speed disperser at 700 rpm, dispersing at medium speed of high-speed disperser for 10min, and filtering with 200 mesh filter cloth.
The construction process comprises the following steps:
coating the coating material with primer according to the requirement, and polishing, flattening and dedusting for later use;
uniformly coating the prepared anti-doodling matte UV curing finish paint on the surface of a polished and flat material by using a roller coater, wherein the coating amount is controlled to be 8g/m 2 ；
The pipeline conveying speed is 11 m/min, and the energy of ultraviolet light is 400mj/cm 2 Radiation curing under the condition; the coating film can be completely crosslinked and cured to form a scrawling-resistant matte protective coating with a defect-free surface;
and packaging according to the product requirements, inserting the product into a warehouse and putting the product into a warehouse.
Example 2
The anti-doodling matte UV-cured finish paint comprises the following components in formula shown in Table 1, and the preparation method comprises the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, putting the fluorine-silicon modified acrylate, the matte resin and 60 mass percent of the functional monomer into a dispersion cylinder, setting the rotating speed of a high-speed dispersion machine to be 600 revolutions per minute, and dispersing at a medium speed for 10min;
(2) Adding an auxiliary agent, setting the rotating speed of the high-speed dispersing agent to be 1200 rpm, and dispersing for 10min at a high speed;
(3) Adding a photoinitiator, setting the rotating speed of the high-speed dispersing agent to be 1200 rpm, and dispersing for 10min at a high speed;
(4) Adding matte powder, dispersing at a high speed of 600 rpm in a high speed disperser until the matte powder is completely wetted, and dispersing at a high speed of 1200 rpm for 20min;
(5) Adding the rest 40% of functional monomer, setting the rotation speed of high-speed disperser at 600 rpm, dispersing at medium speed of high-speed disperser for 10min, and filtering with 200 mesh filter cloth.
The construction process comprises the following steps:
coating the coating material with primer according to the requirement, and polishing, flattening and dedusting for later use;
uniformly coating the prepared anti-doodling matte UV curing finish paint on the surface of a polished and flat material by using a roller coater, wherein the coating amount is controlled to be 8g/m 2 ；
The pipeline conveying speed is 10 m/min, and the energy of ultraviolet light is 380mj/cm 2 Curing by radiation under the condition; the coating film can be completely crosslinked and cured to form a scrawling-resistant matte protective coating with a defect-free surface;
and packaging according to the product requirements, inserting the product into a warehouse and putting the product into a warehouse.
Example 3
The anti-doodling matte UV-cured finish paint comprises the following components in formula shown in Table 1, and the preparation method comprises the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, putting the fluorine-silicon modified acrylate, the matte resin and 80% of the functional monomer into a dispersion cylinder, setting the rotating speed of a high-speed dispersion machine to be 800 revolutions per minute, and dispersing at a medium speed for 15min;
(2) Adding the auxiliary agent, setting the rotating speed of the high-speed dispersing agent to be 1500 rpm, and dispersing for 15min at a high speed;
(3) Adding a photoinitiator, setting the rotating speed of the high-speed dispersing agent to be 1500 rpm, and dispersing for 15min at a high speed;
(4) Adding the matte powder, dispersing at a high speed of 800 rpm in a high-speed dispersion machine until the matte powder is completely wetted, and then dispersing at a high speed of 1500 rpm for 20min;
(5) Adding the rest 20% of functional monomer, setting the rotation speed of high-speed disperser at 800 rpm, dispersing at medium speed of high-speed disperser for 10min, and filtering with 200 mesh filter cloth.
The construction process comprises the following steps:
coating the coating material with primer paint according to the requirement, and polishing, leveling and dedusting for later use;
uniformly coating the prepared anti-doodling matte UV curing finish paint on the surface of a polished and flat material by using a roller coater, wherein the coating amount is controlled to be 9g/m 2 ；
The pipeline conveying speed is 12 m/min, and the energy of ultraviolet light is 420mj/cm 2 Radiation curing under the condition; the coating film can be completely crosslinked and cured to form a scrawling-resistant matte protective coating with a defect-free surface;
and packaging according to the product requirements, inserting the product into a warehouse and putting the product into a warehouse.
Example 4
The anti-doodling matte UV-cured finish paint comprises the following components in formula shown in Table 1, and the preparation method comprises the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, putting the fluorine-silicon modified acrylate, the matte resin and 75 mass percent of the functional monomer into a dispersion cylinder, setting the rotating speed of a high-speed dispersion machine to be 650 revolutions per minute, and dispersing at a medium speed for 12min;
(2) Adding an auxiliary agent, setting the rotating speed of the high-speed dispersing agent to be 1400 rpm, and dispersing for 14min at a high speed;
(3) Adding a photoinitiator, setting the rotating speed of the high-speed dispersing agent to be 1300 rpm, and dispersing for 12min at a high speed;
(4) Adding the matte powder, dispersing at a high speed of 750 rpm by a high-speed dispersion machine until the matte powder is completely wetted, and then dispersing at a high speed of 1200-1500 rpm for 20min;
(5) Adding the rest 30% of functional monomer, setting the rotation speed of high-speed disperser at 700 rpm, dispersing at medium speed of high-speed disperser for 10min, and filtering with 200 mesh filter cloth.
The construction process comprises the following steps:
coating the coating material with primer paint according to the requirement, and polishing, leveling and dedusting for later use;
uniformly coating the prepared anti-doodling matte UV curing finish paint on the surface of a polished and flat material by using a roller coater, wherein the coating amount is controlled to be 8.5g/m 2 ；
The pipeline conveying speed is 11 m/min, and the energy of ultraviolet light is 390mj/cm 2 Curing by radiation under the condition; the coating film can be completely crosslinked and cured to form a scrawling-resistant matte protective coating with a defect-free surface;
and packaging according to the product requirements, and performing offline warehousing.
The raw material components and the weight formula of the graffiti matte UV-cured finish paint of the examples 1-4 are shown in the following table 1.
TABLE 1 Components and their weight values (unit: kg) in examples 1-4
Test example 1
Through detection, the anti-doodling matte UV-cured finish paint prepared in the examples 1-3 is semitransparent liquid, the solid content is 98-99 wt%, and the viscosity is 67-73 KU (Stomer detection at 30 ℃).
The anti-doodling matte UV curing finish paint disclosed by the invention is stored without direct irradiation of ultraviolet light or sunlight, the anti-doodling matte UV curing finish paint is applied by adopting the construction process of the anti-doodling matte UV curing finish paint, UV curing is carried out, and the ultraviolet light energy required by curing is 400 +/-20 mj/cm 2 (ii) a The product with flat and smooth surface, no coating defect, low gloss, high hardness and good scrawling resistance is obtained by construction. The prepared products were subjected to performance tests to obtain the film properties as described in table 2.
TABLE 2 test results of physical properties of coating films of examples 1 to 3
As can be seen from the test results in Table 2, the paint films formed by the products of the above examples 1 to 3 through the coating process have excellent matte surface effect, the benzene content test of the paint reaches the national standard, the oily mark pen is used for conducting the doodling test result, so that the paint films are easy to erase and have no residual mark, and the oily mark pen is used for conducting the repetitive doodling test result, so that the paint films have good performance test results.
Test example 2
The anti-doodling matte UV curing finish paint product prepared by the invention is coated and cured, the obtained product (sample) is subjected to a long-acting anti-doodling test experiment, and an oily mark pen is used for doodling test within 12 months, so that the test results shown in the table 3 are obtained.
TABLE 3 Long-term anti-graffiti Experimental test results
The results show that the long-acting graffiti test performed by using an oily mark pen is easy to erase and has no residual trace, and the long-acting graffiti resistance test of the paint film is good.
In conclusion, the test results of the test example 1 and the test example 2 show that the paint film of the paint has the advantages of high hardness, low gloss, good scrawling resistance, lasting scrawling resistance and the like.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the present invention. Any modification, equivalent replacement, or modification made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The anti-doodling matte UV-curable finish paint is characterized by comprising the following components in percentage by mass:
the fluorine-silicon modified acrylate is obtained by anchoring a grafted fluorine-silicon chain segment in a cross-linked network;
the matte resin is synthesized by reacting major molecular weight polyester polyol, diisocyanate and hydroxyl acrylate serving as main reactants;
the functional monomer is a benzene-free reaction monomer;
the auxiliary agent comprises a wetting dispersant, a defoaming agent and an anti-graffiti auxiliary agent, wherein the wetting dispersant is an acrylic copolymer solution with a structure, the defoaming agent is a polymer type defoaming agent without organic silicon, and the anti-graffiti auxiliary agent is a reaction product of hydrogen-terminated dimethyl siloxane and polysiloxane and diacrylate-2, 2-bis [ [ (1-oxo 2-propenyl) oxo ] methyl ] -1, 3-propylene glycol.
2. The anti-graffiti matte UV-curable top-coat paint according to claim 1, wherein the functional monomer comprises any one or more of trimethylolpropane triacrylate, tripropylene glycol diacrylate, dipentaerythritol hexaacrylate.
3. The anti-graffiti matte UV-curable topcoat coating of claim 2, wherein the functional monomer comprises EM231-TF, EM223-TF, EM265.
4. The anti-graffiti matte UV-curable topcoat coating of claim 1, wherein the photoinitiator is any one or more of methyl benzoylformate, 1-hydroxy-cyclohexyl-phenyl ketone and a mixture of benzoylformates.
5. The graffiti resistant matte UV-curable topcoat coating of claim 4, wherein the photoinitiator comprises JRCure-1104, JRCure-1055 and IRGACURE754.
6. The anti-doodling matte UV-curable finish paint according to claim 1, wherein the auxiliary agent accounts for 2.5-3.5% of the total mass of the components, and comprises 1-2% of wetting dispersant, 0.5% of defoaming agent and 0.3-2% of anti-doodling auxiliary agent;
the wetting dispersant is BYK2009 from Pickering chemical company, the defoamer is one or two of BYK055 and a defoamer TEGOAirex 920, and the anti-graffiti assistant is TEGO RAD 2700.
7. The graffiti-resistant matte UV-curable topcoat coating of claim 1, wherein the matte powder comprises degussa ACEMATT OK500 matting powder and graves GRACE RAD2105 matting powder.
8. A method for preparing the anti-doodling matte UV-cured finish paint of any one of claims 1 to 7, which is characterized by comprising the following steps:
(1) Weighing the components of the fluorine-silicon modified acrylate, the matte resin, the functional monomer, the photoinitiator, the matte powder and the auxiliary agent according to the mass percent, mixing the fluorine-silicon modified acrylate, the matte resin and part of the functional monomer, and dispersing at a rotating speed of 600-800 rpm for 10-15 min;
(2) Adding an auxiliary agent, and dispersing at a high speed for 10-15 min at a rotating speed of 1200-1500 rpm;
(3) Adding a photoinitiator, and dispersing at a high speed for 10-15 min by adopting a rotating speed of 1200-1500 rpm;
(4) Adding the matte powder, dispersing at a medium speed of 600-800 rpm until the matte powder is completely wet, and then dispersing at a high speed for 20min;
(5) Adding the rest functional monomer, dispersing at medium speed of 600-800 rpm for 8-12min, and filtering with 200 mesh sieve.
9. The method according to claim 8, wherein the functional monomer is added in the step (1) in an amount of 60 to 80% by mass.
10. The application of the anti-doodling matte UV-curing finish paint disclosed in any one of claims 1 to 7 or the anti-doodling matte UV-curing finish paint prepared by the preparation method disclosed in claim 8 in a paint construction process, wherein the construction process comprises the following steps:
step 1, coating the coating material with primer paint, polishing and leveling, and removing dust for later use;
step 2, uniformly coating the anti-doodling matte UV curing finish paint on the surface of the polished and flat material, wherein the coating amount is controlled to be 8-9 g/m 2 ；
Step 3, under the ultraviolet energy of 380-420 mj/cm 2 The coating film can be completely crosslinked and cured after radiation curing under the condition to form the scrawling-resistant matte protection with no defect on the surfaceCoating;
and 4, packaging the product, and performing offline warehousing.
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