Antistatic wear-resistant UV coating and preparation method thereof

Abstract

The invention relates to the field of coatings, in particular to an antistatic wear-resistant UV coating and a preparation method thereof. The UV coating is prepared from the following components in parts by weight: 30 to 50 parts of polyurethane acrylate, 20 to 40 parts of polyester acrylate, 10 to 20 parts of modified acrylamide monomer, 6 to 12 parts of 1, 6-hexanediol diacrylate, 3 to 7 parts of modified conductive titanium dioxide, 1 to 3 parts of photoinitiator, 0.5 to 1.5 parts of dispersing agent, 0.1 to 0.5 part of defoaming agent, 0.2 to 0.8 part of flatting agent and 40 to 80 parts of water. The UV coating prepared by the invention is a water-based coating, has the advantages of good application property, easy viscosity adjustment and environmental protection, and also has excellent adhesive force, antistatic property and wear resistance.

Description

Technical Field

[0001] The present invention relates to the field of coatings, and particularly to an antistatic and wear-resistant UV coating and a preparation method thereof. Background Art

[0002] Waterborne UV coatings, with their ultra-fast curing speed and excellent physical and chemical properties, have gradually replaced traditional coatings. Waterborne UV coatings eliminate the toxicity and irritation in traditional coatings and are quickly applied to fields such as bamboo and wooden floors, furniture, glass, plastics, metals, etc., becoming new environmentally friendly materials.

[0003] In the electronics industry, the existence of static electricity can bring many hazards. For example, in the workshops of electronic appliances and computer rooms, static electricity can cause damage or even failure of electronic components, hindering the production process and product quality. Therefore, most electronic appliances will choose coatings with antistatic effects to ensure the use of products. The preparation of traditional antistatic coatings is to add conductive fillers (such as graphene, silicon carbide, conductive mica powder, etc.) or antistatic agents (such as anionic, non-ionic) to the coatings, and then form them after coating and curing on the surface of the article. Although conductive fillers or antistatic agents can meet the antistatic requirements, they will show phenomena such as incompatibility with the resin or easy migration from the material during use, resulting in problems such as affecting the photocuring effect or limited timeliness. In addition, since the waterborne coating forms a relatively thin paint film on the surface of the substrate, when friction occurs, the hardness and toughness of the paint film are insufficient, easily causing wear of the paint film, and the wear resistance of the paint film needs to be improved.

[0004] Therefore, there is a need to provide a waterborne UV coating with antistatic and wear-resistant properties to overcome the above defects. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an antistatic and wear-resistant UV coating and a preparation method thereof.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] In the first aspect, the present invention provides an antistatic and wear-resistant UV coating, which includes, by weight parts:

[0008] 30 - 50 parts of polyurethane acrylate, 20 - 40 parts of polyester acrylate, 10 - 20 parts of modified acrylamide monomer, 6 - 12 parts of 1,6 - hexanediol diacrylate, 3 - 7 parts of modified conductive titanium dioxide, 1 - 3 parts of photoinitiator, 0.5 - 1.5 parts of dispersant, 0.1 - 0.5 parts of defoamer, 0.2 - 0.8 parts of leveling agent, and 40 - 80 parts of water.

[0009] Preferably, the polyurethane acrylate is hexafunctional polyurethane acrylate, with the brand name being Changxing Etercure 6145-100 or DSM AgiSyn 230A2.

[0010] Preferably, the polyester acrylate is a difunctional polyester acrylate, and the brand is Changxing Etercure 6118 or Meiyuan MIRAMER M210.

[0011] Preferably, the photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (TPO) or hydroxycyclohexane phenone (photoinitiator 184).

[0012] Preferably, the dispersant is one of BYK-2013, BYK-190, and BYK-192, or a mixture of more thereof.

[0013] Preferably, the defoaming agent is Dow Corning DC-57 or Dow Corning DC-51.

[0014] Preferably, the leveling agent is one of TEGO-410, TEGO-440, and TEGO-432, or a mixture of more thereof.

[0015] Preferably, the preparation method of the modified conductive titanium dioxide comprises:

[0016] Conductive titanium dioxide ET-300W and silane coupling agent KH-550 are added to an ethanol aqueous solution, uniformly dispersed by ultrasonication, refluxed and stirred for 2-4 hours, centrifuged, washed with water and dried to obtain modified conductive titanium dioxide.

[0017] More preferably, the mass fraction of the ethanol aqueous solution is 40%-60%.

[0018] More preferably, the mass volume ratio of the conductive titanium dioxide, the silane coupling agent and the ethanol aqueous solution is 1 g: (0.15-0.35) g: (10-20) mL.

[0019] Preferably, the preparation method of the modified acrylamide monomer comprises:

[0020] S1. Weigh 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and add it to N,N-dimethylformamide. Stir thoroughly under nitrogen protection, then add thionyl chloride and a polymerization inhibitor. Stir at 45-55° C. for 4-6 hours. After the reaction is completed, cool to room temperature, recrystallize, wash, and dry in sequence to obtain 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl).

[0021] S2. Under the protection of nitrogen, add 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl) and 3-amino-1,2,4-triazole (ATZ) into N,N-dimethylformamide, and stir at room temperature for 10 - 20 h. After the reaction is completed, perform recrystallization, washing, and drying in sequence to obtain the modified acrylamide monomer.

[0022] Preferably, in S1, the mass-volume ratio of 2-acrylamido-2-methylpropanesulfonic acid, thionyl chloride, and N,N-dimethylformamide is (1.02 - 1.56) g : (4.38 - 6.57) mL : (12 - 20) mL.

[0023] Preferably, in S1, the stirring speed of the reaction is 300 - 600 r / min.

[0024] Preferably, in S1, recrystallization is to pour the reaction solution into 2 - 3 times the volume of acetone of the reaction solution, stir well and collect the precipitate; washing is to wash three times with acetone; drying is vacuum drying.

[0025] Preferably, in S1, the inhibitor is hydroquinone, and the addition amount is 0.1% - 1% of the mass of 2-acrylamido-2-methylpropanesulfonic acid (AMPS).

[0026] Preferably, in S2, the mass-volume ratio of 2-acrylamido-2-methylpropanesulfonyl chloride, 3-amino-1,2,4-triazole, and N,N-dimethylformamide is 1 g : (0.42 - 0.64) g : (10 - 16) mL.

[0027] Preferably, in S2, the stirring speed of the reaction is 200 - 500 r / min.

[0028] Preferably, in S2, recrystallization is to pour the reaction solution into 2 - 3 times the volume of acetone of the reaction solution, stir well and collect the precipitate; washing is to wash three times with acetone; drying is vacuum drying.

[0029] In the second aspect, the present invention provides a preparation method of an antistatic and wear-resistant UV coating, comprising the following steps:

[0030] Step 1. Weigh polyurethane acrylate, polyester acrylate, modified acrylamide monomer, 1,6-hexanediol diacrylate, modified conductive titanium dioxide, and a dispersant, add them into deionized water, and disperse at a speed of 300 - 500 r / min for 20 - 30 min;

[0031] Step 2. Then weigh a photoinitiator, an antifoaming agent, and a leveling agent, add them into the mixture obtained in Step 1, and disperse at a speed of 200 - 400 r / min for 5 - 15 min to obtain the antistatic and wear-resistant UV coating.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1. The present invention prepares a UV coating, which is a water-based coating. In addition to having good workability, easy viscosity adjustment, and environmental protection advantages, it also has excellent adhesion, antistatic property, and wear resistance.

[0034] 2. In the coating composition of the present invention, polyurethane acrylate and polyester acrylate are used together as the acrylate oligomer matrix, endowing the coating with good physical properties and wear resistance; 1,6-hexanediol diacrylate is used as a diluent to promote film formation and rapid curing of the coating; the modified acrylamide-based monomer is used as a modified reinforcing matrix, supplemented by modified conductive titanium dioxide as an antistatic agent, which has good enhancement for the antistatic property and wear resistance of the coating.

[0035] 3. The modified acrylamide-based monomer prepared in the present invention uses 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and 3-amino-1,2,4-triazole (ATZ) as reactants. Through the combination of sulfonic acid groups and amino groups, an acrylamide-based monomer compound containing sulfonamide groups and triazole groups is formed, which has good improvement for the adhesion and antistatic property of the coating. In addition, the conjugated structure and rigid skeleton of the triazole ring can increase the hardness and stability of the coating. Detailed implementation manners

[0036] The technical solutions of the present invention are described below through specific specific examples. It should be understood that one or more method steps mentioned in the present invention do not exclude the existence of other method steps before and after the combined steps or that other method steps can be inserted between these clearly mentioned steps; it should also be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. Moreover, unless otherwise specified, the numbers of each method step are only convenient tools for identifying each method step, rather than limiting the arrangement order of each method step or the scope in which the present invention can be implemented. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope in which the present invention can be implemented.

[0037] In order to better understand the above technical solutions, the exemplary embodiments of the present invention are described in more detail below. Although the exemplary embodiments of the present invention are shown, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to be able to convey the scope of the present invention completely to those skilled in the art.

[0038] The present invention is further described below in conjunction with the following embodiments.

[0039] Example 1

[0040] An antistatic wear-resistant UV coating, comprising, by weight:

[0041] 40 parts of polyurethane acrylate, 30 parts of polyester acrylate, 15 parts of modified acrylamide monomer, 8 parts of 1,6-hexanediol diacrylate, 4 parts of modified conductive titanium dioxide, 2 parts of photoinitiator, 1 part of dispersant, 0.3 parts of defoaming agent, 0.6 parts of leveling agent, and 60 parts of water.

[0042] Wherein, the polyurethane acrylate is hexafunctional polyurethane acrylate, and the brand is Changxing Etercure 6145-100 or DSM AgiSyn 230A2.

[0043] The polyester acrylate is a difunctional polyester acrylate, and the brand is Changxing Etercure 6118 or Meiyuan MIRAMER M210.

[0044] The photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (TPO); the dispersant is BYK-2013; the defoamer is Dow Corning DC-57; and the leveling agent is TEGO-410.

[0045] The preparation method of the modified conductive titanium dioxide comprises:

[0046] 1 g of Ishihara conductive titanium dioxide ET-300W and 0.25 g of silane coupling agent KH-550 were added to 15 mL of an aqueous solution with a mass fraction of 50% ethanol, ultrasonically dispersed uniformly, refluxed and stirred for 3 hours, centrifuged, washed with water and dried to obtain modified conductive titanium dioxide.

[0047] The preparation method of the modified acrylamide monomer includes:

[0048] S1. Weigh 1.34 g of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and add it to 16 mL of N,N-dimethylformamide. Stir thoroughly under nitrogen protection, then add 5.28 mL of thionyl chloride and a polymerization inhibitor, hydroquinone, in an amount of 0.3% of the mass of 2-acrylamido-2-methylpropanesulfonic acid (AMPS). Stir at 50° C. for 5 h at a stirring speed of 400 r / min. After the reaction is completed, cool to room temperature, pour the reaction solution into acetone twice the volume of the reaction solution, stir thoroughly, collect the precipitate, wash three times with acetone, and dry in vacuo to obtain 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl);

[0049] S2. Under the protection of nitrogen, 1 g of 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl) and 0.53 g of 3-amino-1,2,4-triazole (ATZ) were added to 12 mL of N,N-dimethylformamide. Under the condition of room temperature (25 - 30 °C), it was stirred for 15 h, and the stirring speed of the reaction was 300 r / min. After the reaction ended, acetone with twice the volume of the reaction solution was poured in, stirred well and the precipitate was collected. The precipitate was washed three times with acetone and then dried under vacuum to obtain the modified acrylamide monomer.

[0050] The preparation method of the above antistatic and wear-resistant UV coating includes the following steps:

[0051] Step 1. Weigh polyurethane acrylate, polyester acrylate, modified acrylamide monomer, 1,6-hexanediol diacrylate, modified conductive titanium dioxide and dispersant and add them to deionized water, and disperse at a speed of 400 r / min for 25 min;

[0052] Step 2. Then weigh photoinitiator, defoamer and leveling agent and add them to the mixture in Step 1, and disperse at a speed of 300 r / min for 10 min to obtain the antistatic and wear-resistant UV coating.

[0053] Example 2

[0054] An antistatic and wear-resistant UV coating, by weight, includes:

[0055] 30 parts of polyurethane acrylate, 20 parts of polyester acrylate, 10 parts of modified acrylamide monomer, 6 parts of 1,6-hexanediol diacrylate, 3 parts of modified conductive titanium dioxide, 1 part of photoinitiator, 0.5 part of dispersant, 0.1 part of defoamer, 0.2 part of leveling agent, and 40 parts of water.

[0056] Among them, the polyurethane acrylate is a hexafunctional polyurethane acrylate, with the brand name of Changxing Etercure 6145-100 or DSM AgiSyn 230A2.

[0057] Among them, the polyester acrylate is a difunctional polyester acrylate, with the brand name of Changxing Etercure 6118 or Meiyuan MIRAMER M210.

[0058] Among them, the photoinitiator is hydroxycyclohexanone phenyl ketone (photoinitiator 184); the dispersant is BYK-190; the defoamer is Dow Corning DC-57; the leveling agent is TEGO-440.

[0059] Among them, the preparation method of the modified acrylamide monomer is the same as that in Example 1.

[0060] The preparation method of the above antistatic and wear-resistant UV coating includes the following steps:

[0061] Step 1: Weigh polyurethane acrylate, polyester acrylate, modified acrylamide-based monomer, 1,6-hexanediol diacrylate, modified conductive titanium dioxide and dispersant, add them to deionized water, and disperse at a speed of 300 r / min for 30 min;

[0062] Step 2: Weigh photoinitiator, defoamer and leveling agent again and add them to the mixed solution in Step 1, disperse at a speed of 200 r / min for 15 min, and then the antistatic and wear-resistant UV coating is obtained.

[0063] Example 3

[0064] An antistatic and wear-resistant UV coating, by weight, includes:

[0065] 50 parts of polyurethane acrylate, 40 parts of polyester acrylate, 20 parts of modified acrylamide-based monomer, 12 parts of 1,6-hexanediol diacrylate, 7 parts of modified conductive titanium dioxide, 3 parts of photoinitiator, 1.5 parts of dispersant, 0.5 part of defoamer, 0.8 part of leveling agent, and 80 parts of water.

[0066] Among them, the polyurethane acrylate is a hexa-functional polyurethane acrylate, with the brand name of Changxing Etercure 6145-100 or DSM AgiSyn 230A2.

[0067] Among them, the polyester acrylate is a di-functional polyester acrylate, with the brand name of Changxing Etercure 6118 or Meiyuan MIRAMER M210.

[0068] Among them, the photoinitiator is hydroxycyclohexanone phenyl ketone (photoinitiator 184); the dispersant is BYK-192; the defoamer is Dow Corning DC-51; the leveling agent is TEGO-432.

[0069] Among them, the preparation method of the modified acrylamide-based monomer is the same as that in Example 1.

[0070] The preparation method of the above antistatic and wear-resistant UV coating includes the following steps:

[0071] Step 1: Weigh polyurethane acrylate, polyester acrylate, modified acrylamide-based monomer, 1,6-hexanediol diacrylate, modified conductive titanium dioxide and dispersant, add them to deionized water, and disperse at a speed of 500 r / min for 20 min;

[0072] Step 2: Weigh photoinitiator, defoamer and leveling agent again and add them to the mixed solution in Step 1, disperse at a speed of 400 r / min for 5 min, and then the antistatic and wear-resistant UV coating is obtained.

[0073] Example 4

[0074] An antistatic and wear-resistant UV coating, which is different from Example 1 in that the preparation method of the modified acrylamide-based monomer is different.

[0075] Preferably, the preparation method of the modified acrylamide-based monomer includes:

[0076] S1. Weigh 1.56 g of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and add it to 20 mL of N,N-dimethylformamide. Stir well under nitrogen protection, then add 6.57 mL of thionyl chloride, and at the same time add hydroquinone as an inhibitor, with the addition amount being 0.6% of the mass of 2-acrylamido-2-methylpropanesulfonic acid (AMPS). Stir at 55 °C for 6 h, with the stirring speed of the reaction being 600 r / min. After the reaction is completed, cool to room temperature, pour the reaction solution into acetone with a volume three times that of the reaction solution, stir well and collect the precipitate. Then wash the precipitate three times with acetone and dry it under vacuum to obtain 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl);

[0077] S2. Under the protection of nitrogen, add 1 g of 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl) and 0.64 g of 3-amino-1,2,4-triazole (ATZ) to 16 mL of N,N-dimethylformamide. Stir at room temperature (25 - 30 °C) for 20 h, with the stirring speed of the reaction being 500 r / min. After the reaction is completed, pour it into acetone with a volume three times that of the reaction solution, stir well and collect the precipitate. Wash the precipitate three times with acetone and dry it under vacuum to obtain the modified acrylamide-based monomer.

[0078] Example 5

[0079] An antistatic and wear-resistant UV coating, which is different from Example 1 in that the preparation method of the modified acrylamide-based monomer is different.

[0080] Preferably, the preparation method of the modified acrylamide-based monomer includes:

[0081] S1. Weigh 1.02 g of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and add it to 12 mL of N,N-dimethylformamide. Stir well under nitrogen protection, then add 4.38 mL of thionyl chloride, and at the same time add hydroquinone as an inhibitor, with the addition amount being 0.2% of the mass of 2-acrylamido-2-methylpropanesulfonic acid (AMPS). Stir at 45 °C for 4 h, with the stirring speed of the reaction being 300 r / min. After the reaction is completed, cool it to room temperature, pour the reaction solution into acetone with a volume twice that of the reaction solution, stir well and collect the precipitate, then wash it three times with acetone and dry it under vacuum to obtain 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl);

[0082] S2. Under the protection of nitrogen, add 1 g of 2-acrylamido-2-methylpropanesulfonyl chloride (AMPSCl) and 0.42 g of 3-amino-1,2,4-triazole (ATZ) to (10 - 16) mL of N,N-dimethylformamide. Stir at room temperature (25 - 30 °C) for 10 h, with the stirring speed of the reaction being 200 r / min. After the reaction is completed, pour it into acetone with a volume twice that of the reaction solution, stir well and collect the precipitate, wash the precipitate three times with acetone and dry it under vacuum to obtain a modified acrylamide monomer.

[0083] Comparative Example 1

[0084] An antistatic and wear-resistant UV coating, by weight, includes:

[0085] 55 parts of polyurethane acrylate, 30 parts of polyester acrylate, 8 parts of 1,6-hexanediol diacrylate, 4 parts of modified conductive titanium dioxide, 2 parts of photoinitiator, 1 part of dispersant, 0.3 part of defoamer, 0.6 part of leveling agent, 60 parts of water.

[0086] The difference from Example Ⅰ is that the modified acrylamide monomer is replaced with an equal amount of polyurethane acrylate, and other components and the preparation process are the same as those in Example Ⅰ.

[0087] Comparative Example 2

[0088] An antistatic and wear-resistant UV coating, by weight, includes:

[0089] 40 parts of polyurethane acrylate, 30 parts of polyester acrylate, 15 parts of 2-acrylamido-2-methylpropanesulfonic acid, 8 parts of 1,6-hexanediol diacrylate, 4 parts of modified conductive titanium dioxide, 2 parts of photoinitiator, 1 part of dispersant, 0.3 part of defoamer, 0.6 part of leveling agent, 60 parts of water.

[0090] The difference from Example Ⅰ is that the modified acrylamide monomer is replaced with an equal amount of 2-acrylamido-2-methylpropanesulfonic acid, and other components and the preparation process are the same as those in Example Ⅰ.

[0091] Comparative Example 3

[0092] An antistatic wear-resistant UV coating, comprising, by weight:

[0093] 40 parts of polyurethane acrylate, 30 parts of polyester acrylate, 9.7 parts of 2-acrylamido-2-methylpropanesulfonic acid, 5.3 parts of 3-amino-1,2,4-triazole, 8 parts of 1,6-hexanediol diacrylate, 4 parts of modified conductive titanium dioxide, 2 parts of photoinitiator, 1 part of dispersant, 0.3 parts of defoaming agent, 0.6 parts of leveling agent, and 60 parts of water.

[0094] The difference from Example 1 is that diphenylmethane-modified methacrylate is replaced by 2-acrylamido-2-methylpropanesulfonic acid and 3-amino-1,2,4-triazole. Other components and preparation process are the same as those in Example 1.

[0095] Experimental example

[0096] In order to more clearly illustrate the content of the present invention, the present invention conducted experimental tests on the properties of the water-based UV coatings prepared in Example 1 and Comparative Examples 1-3, as follows:

[0097] Take 4 pieces of SPCC cold-rolled sheets of the same size, mark them with numbers, and apply the water-based UV coatings prepared in Example 1 and Comparative Examples 1-3 on the cold-rolled sheets with numbers by vacuum spraying. The spraying thickness is 75 μm. After spraying, the radiation energy is 1000 mJ / cm 2 The film was cured under UV light for 30 seconds, and the performance was tested after curing.

[0098] Testing items include:

[0099] Impact resistance test refers to GB / T 1732-1993;

[0100] Pencil hardness test refers to GB / T 6739-2022 to test the coating's scratch resistance;

[0101] Adhesion testing refers to GB / T 9286-2021. After slicing with a 1mm interval, the tape is peeled off and the peeling area is evaluated (0-5 levels, level 0 is the best).

[0102] The wear resistance test refers to ASTM D4060-19, using a CS-10 grinding wheel, a load of 1000g, and measuring the mass loss after 1000 rotations.

[0103] The antistatic property test refers to the standard GB / T 1410-2006 and the surface resistivity is tested.

[0104] The test results are shown in the following table:

[0105] Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Impact resistance (kg·cm) 55 50 45 50 Pencil hardness 4H 2H 2H 3H Adhesion (grade) 0 1 1 1 Wear mass loss (mg) 11 37 35 20 Surface resistivity (Ω) <![CDATA[2.3×10 6 > <![CDATA[4.1×10 7 > <![CDATA[4.5×10 6 > <![CDATA[3.7×10 6 >

[0106] It can be seen from the above tests that, compared with the comparative example, the UV coating prepared in Example 1 of the present invention has the best comprehensive performance, showing more excellent performance both in terms of hardness and impact resistance, or in terms of adhesion, abrasion resistance and antistatic property.

[0107] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An antistatic and wear-resistant UV coating, characterized in that, By weight parts, it includes: 30 - 50 parts of polyurethane acrylate, 20 - 40 parts of polyester acrylate, 10 - 20 parts of modified acrylamide monomer, 6 - 12 parts of 1,6 - hexanediol diacrylate, 3 - 7 parts of modified conductive titanium dioxide, 1 - 3 parts of photoinitiator, 0.5 - 1.5 parts of dispersant, 0.1 - 0.5 parts of defoamer, 0.2 - 0.8 parts of leveling agent, and 40 - 80 parts of water.

2. The antistatic and wear-resistant UV coating according to claim 1, characterized in that, The polyurethane acrylate is a hexa - functional polyurethane acrylate, with the brand name of Changxing Etercure 6145 - 100 or DSM AgiSyn 230A2; the polyester acrylate is a di - functional polyester acrylate, with the brand name of Changxing Etercure 6118 or Meiyuan MIRAMER M210.

3. An antistatic and wear-resistant UV coating according to claim 1, wherein, The photoinitiator is 2,4,6 - trimethylbenzoyl - diphenylphosphine oxide or hydroxycyclohexanone; the dispersant is one or a mixture of BYK - 2013, BYK - 190, and BYK - 192; the defoamer is Dow Corning DC - 57 or Dow Corning DC - 51; the leveling agent is one or a mixture of TEGO - 410, TEGO - 440, and TEGO - 432.

4. An antistatic and wear-resistant UV coating according to claim 1, wherein, The preparation method of the modified conductive titanium dioxide includes: The conductive titanium dioxide ET - 300W and the silane coupling agent KH - 550 are added to an aqueous solution of ethanol, ultrasonically dispersed evenly, reflux - stirred for 2 - 4 h, then centrifuged, washed with water, and dried to obtain the modified conductive titanium dioxide; among them, the mass - volume ratio of the conductive titanium dioxide, the silane coupling agent, and the aqueous solution of ethanol is 1 g:(0.15 - 0.35) g:(10 - 20) mL.

5. An antistatic and wear-resistant UV coating according to claim 1, wherein The preparation method of the modified acrylamide monomer includes: S1. Weigh 2 - acrylamido - 2 - methylpropanesulfonic acid and add it to N,N - dimethylformamide. Stir well under nitrogen protection, then add thionyl chloride, and at the same time add an inhibitor. Stir at 45 - 55 °C for 4 - 6 h. After the reaction is completed, cool to room temperature, and perform recrystallization, washing, and drying in sequence to obtain 2 - acrylamido - 2 - methylpropanesulfonyl chloride; S2. Under the protection of nitrogen, add 2 - acrylamido - 2 - methylpropanesulfonyl chloride and 3 - amino - 1,2,4 - triazole to N,N - dimethylformamide, and stir at room temperature for 10 - 20 h. After the reaction is completed, perform recrystallization, washing, and drying in sequence to obtain the modified acrylamide monomer.

6. The antistatic and wear-resistant UV coating according to claim 5, characterized in that, In the above - mentioned S1, the mass - volume ratio of 2 - acrylamido - 2 - methylpropanesulfonic acid, thionyl chloride, and N,N - dimethylformamide is (1.02 - 1.56) g:(4.38 - 6.57) mL:(12 - 20) mL.

7. An antistatic and wear-resistant UV coating according to claim 5, characterized in that, In the above - mentioned S1, the inhibitor is hydroquinone, and the addition amount is 0.1% - 1% of the mass of 2 - acrylamido - 2 - methylpropanesulfonic acid.

8. An antistatic and wear-resistant UV coating according to claim 5, characterized in that, In the above - mentioned S2, the mass - volume ratio of 2 - acrylamido - 2 - methylpropanesulfonyl chloride, 3 - amino - 1,2,4 - triazole, and N,N - dimethylformamide is 1 g:(0.42 - 0.64) g:(10 - 16) mL.

9. An antistatic and wear-resistant UV coating according to claim 5, characterized in that, In the S1 and the S2, recrystallization is to pour the reaction solution into acetone with a volume 2-3 times that of the reaction solution, stir well and collect the precipitate; washing is to wash three times with acetone; drying is vacuum drying.

10. A method for preparing the antistatic and wear-resistant UV coating according to claim 1, characterized in that, It includes the following steps: Step 1, weigh polyurethane acrylate, polyester acrylate, modified acrylamide monomer, 1,6-hexanediol diacrylate, modified conductive titanium dioxide and dispersant and add them to deionized water, and disperse at a speed of 300-500 r / min for 20-30 min; Step 2, weigh photoinitiator, defoamer and leveling agent again and add them to the mixed solution in Step 1, and disperse at a speed of 200-400 r / min for 5-15 min to obtain the antistatic and wear-resistant UV coating.