A wear-resistant anti-fingerprint liquid fluorine-containing coating material, a preparation method and application thereof

By combining acrylate monomers with fluorinated allyl benzoxazine compounds, an anti-fingerprint liquid coating with excellent wear resistance and hydrophobicity was prepared, solving the problem of insufficient wear resistance of existing coatings and improving the durability and surface properties of the coating.

CN120399558BActive Publication Date: 2026-02-27SHENZHEN ZHONGREN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202510536661.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-02-27
Estimated Expiration
2045-04-27

AI Technical Summary

Technical Problem

Existing anti-fingerprint liquid coatings lack sufficient abrasion resistance and strength, making it difficult to meet market demands.

Method used

Fluoropropyl benzoxazine is prepared by combining acrylate monomers with fluorinated allyl benzoxazine compounds via Mannich condensation reaction. Initiators and additives are added, and the mixture is cured by UV light to form a coating with excellent wear resistance.

Benefits of technology

The prepared coating material has high wear resistance, hydrophobicity and heat resistance, which significantly improves the service life and surface smoothness of the anti-fingerprint liquid.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of fluorine-containing coating materials, and particularly relates to a wear-resistant fingerprint-resistant liquid fluorine-containing coating material, a preparation method and application. The fingerprint-resistant liquid fluorine-containing coating material comprises, in terms of weight fractions, 15-25 parts of ethyl acrylate, 20-30 parts of methyl methacrylate, 3-10 parts of hydroxyethyl methacrylate, 12-18 parts of hexafluorobutyl acrylate, 5-15 parts of a fluorine-containing allyl benzoxazine, 2-6 parts of an adhesive, 1-5 parts of an initiator, 0.1-0.5 parts of a leveling agent, 0.05-0.15 parts of a defoaming agent, 0.5-2.5 parts of a light stabilizer and 12-20 parts of a solvent. After the fingerprint-resistant liquid is treated by UV light, polymerized and solidified, the obtained fluorine-containing coating material has not only the advantages of high-temperature resistance and solvent resistance, but also more excellent hydrophobicity and wear resistance compared with traditional acrylate fingerprint-resistant materials.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of fluorine-containing coating materials, in particular to a wear-resistant anti-fingerprint liquid fluorine-containing coating material and a preparation method and application thereof. BACKGROUND

[0002] In order to improve the anti-fingerprint and anti-staining properties of materials such as plastics, glass and metal, a thin film of coating material is usually applied by spraying anti-fingerprint liquid. Anti-fingerprint liquid is widely used in touch screen devices such as mobile phones, cameras and glasses, which can effectively reduce the adhesion of fingerprints and oil stains, maintain the smoothness and aesthetics of the product surface, and improve the user experience. In addition, the use of anti-fingerprint liquid on household appliances such as refrigerators, washing machines and microwave ovens, as well as kitchen equipment, can reduce the adhesion of fingerprints and oil stains, keep the equipment clean and beautiful for a long time, and reduce the difficulty and frequency of cleaning. The main performance indicators of anti-fingerprint liquid are: (1) very low surface tension, good hydrophobic effect, providing anti-fingerprint and anti-staining effect; (2) good wear resistance, long-lasting anti-fingerprint effect; (3) low dynamic friction coefficient, smoothness, etc.

[0003] Common anti-fingerprint liquid is usually composed of fluorine-containing polymer molecules, which can form a coating on the surface that is difficult to adhere to skin oil and other dirt. This coating has excellent hydrophobicity, wear resistance and scratch resistance, which can protect the surface of the substrate from damage, while having good transparency and adhesion, and not easy to fall off. Fluorine-containing anti-fingerprint liquid achieves excellent anti-staining performance through fluorosilicon synergistic effect, but the ordinary coating of anti-fingerprint liquid on the market has only 3000 times of wear resistance, and the strength index is also poor. Therefore, with the increasing demand for anti-fingerprint liquid in various applications, there is a need for a coating material prepared from a fluorine-containing anti-fingerprint liquid that can simultaneously have high wear resistance and high strength. SUMMARY

[0004] In view of the problems in the prior art, the purpose of the present application is to provide a wear-resistant anti-fingerprint liquid fluorine-containing coating material and a preparation method and application thereof.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] In a first aspect, the present application provides a wear-resistant anti-fingerprint liquid fluorine-containing coating material, which comprises, by weight:

[0007] 15-25 parts of ethyl acrylate, 20-30 parts of methyl methacrylate, 3-10 parts of hydroxyethyl methacrylate, 12-18 parts of hexafluorobutyl acrylate, 5-15 parts of fluorine-containing allyl benzoxazine, 2-6 parts of adhesive, 1-5 parts of initiator, 0.1-0.5 parts of leveling agent, 0.05-0.15 parts of defoaming agent, 0.5-2.5 parts of light stabilizer and 12-20 parts of solvent.

[0008] Preferably, the fluorine-containing allyl benzoxazine is prepared by Mannich condensation reaction with magnolol, 4-amino-2,5,6-trifluoropyrimidine and paraformaldehyde as raw materials.

[0009] Preferably, the preparation method of the fluorine-containing allyl benzoxazine comprises the following steps:

[0010] Magnolol, 4-amino-2,5,6-trifluoropyrimidine and paraformaldehyde are weighed respectively and dissolved in an organic solvent, heated to 110-120℃, and condensed to reflux for 3-10h. After the reaction is completed, the reaction solution is cooled to room temperature, the solvent is removed by rotary evaporation, and then the product is recrystallized with toluene, dried, and obtained as the fluorine-containing allyl benzoxazine.

[0011] Preferably, the organic solvent in the preparation of the fluorine-containing allyl benzoxazine is one or a mixture of multiple of 1,4-dioxane, N,N-dimethylformamide, N,N-dimethylacetamide, toluene and xylene.

[0012] Preferably, the molecular weight of the paraformaldehyde is 240-300.

[0013] Preferably, in the preparation of the fluorine-containing allyl benzoxazine, the mass-volume ratio of magnolol, 4-amino-2,5,6-trifluoropyrimidine, paraformaldehyde and the organic solvent is (2.7-5.4)g:(5.1-10.2)g:(10.8-21.6)g:(100-300)mL.

[0014] Preferably, the adhesive is polyurethane acrylate (PUA), specifically aliphatic polyurethane acrylate; more preferably, it is one or a mixture of multiple of RJ423, RJ424 and RJ422.

[0015] Preferably, the initiator is photoinitiator 184 or photoinitiator TPO; and the light stabilizer is UV-292.

[0016] Preferably, the leveling agent is one or a mixture of multiple of BYK-306, BYK-358N and EFKA-3777.

[0017] Preferably, the defoaming agent is one or a mixture of multiple of BYK-066N, TEGO Foamex 810 and BYK-022.

[0018] Preferably, the solvent is one or a mixture of multiple of ethyl acetate, butyl acetate, isopropyl alcohol, isobutyl alcohol, propylene glycol methyl ether and propylene glycol butyl ether.

[0019] In a second aspect, the present application provides a method for preparing a wear-resistant fingerprint-resistant liquid fluorine-containing coating material, comprising the following steps:

[0020] Step 1: A mixture of ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, hexafluorobutyl acrylate, fluorine-containing allyl benzoxazine, adhesive and solvent is prepared according to the weight ratio, stirred at a speed of 400-600 r / min for 5-10 min to obtain a mixed solution A;

[0021] Step 2: An initiator, a leveling agent, a defoaming agent and a light stabilizer are added to the mixed solution A, and stirred at a speed of 800-1200 r / min for 8-16 min to obtain a mixed solution B;

[0022] Step 3: The mixed solution B is coated on an oil-removed substrate with a coating thickness of 5-100 μm, then placed in an oven at 50-80℃ for 1-5 min, and then cured under a UV lamp with a light intensity of 500-1000 mJ / cm 2 to obtain a fingerprint-resistant liquid fluorine-containing coating material.

[0023] In a third aspect, the present application provides a wear-resistant fingerprint-resistant liquid fluorine-containing coating material for use as a fingerprint-resistant coating in the field of plastic, glass or metal materials.

[0024] The present application has the following advantages:

[0025] 1. The present application prepares a fingerprint-resistant liquid coating material, in which three acrylates (ethyl acrylate, methyl methacrylate and hydroxyethyl methacrylate), hexafluorobutyl acrylate and fluorine-containing allyl benzoxazine are used as monomer compounds, and an initiator and various additives are added to prepare a fingerprint-resistant liquid. After the fingerprint-resistant liquid is treated by UV light, polymerization and curing, the obtained fluorine-containing coating material has the advantages of high temperature resistance and solvent resistance, and has stronger hydrophobicity and more excellent wear resistance compared with traditional acrylate fingerprint-resistant materials.

[0026] 2. The present application adds three acrylates to the fingerprint-resistant liquid, in which ethyl acrylate (EA) has good adhesion to various substrates, methyl methacrylate (MMA) has good rigidity and surface hardness, and hydroxyethyl methacrylate can adjust the flexibility of the coating to reduce the risk of brittle cracking.

[0027] 3. The hexafluorobutyl acrylate introduced in the fingerprint-resistant liquid of the present application contains rich fluorine elements, and the fluorine atoms are enriched on the surface of the coating after curing, showing excellent hydrophobicity and stain resistance. Meanwhile, the present application also introduces fluorine-containing allyl benzoxazine, which combines the high performance of benzoxazine and the unique advantages of fluorine elements, and endows the coating with higher hardness and wear resistance, excellent heat resistance and thermal stability.

[0028] 4. The fluorine-containing allyl group-containing benzoxazine is prepared by a Mannich condensation reaction using magnolol, 4-amino-2,5,6-trifluoropyrimidine and paraformaldehyde as reactants. The magnolol containing an allyl group is used as a phenol to participate in the reaction, and the 4-amino-2,5,6-trifluoropyrimidine containing fluorine is used as an amine to participate in the reaction. The benzoxazine compound obtained finally contains fluorine group, allyl group and pyrimidine group, the allyl group can participate in the polymerization reaction of acrylic acid as an unsaturated bond, the trifluoro group gives the material stronger hydrophobicity and lower surface tension, and the high-rigidity structure of the pyrimidine ring can significantly improve the hardness and wear resistance of the coating. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application is further described by the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present application, and other drawings can be obtained by the following drawings without creative labor for those skilled in the art.

[0030] Figure 1 is the Fourier infrared spectrum (FT-IR) of the fluorine-containing allyl group-containing benzoxazine prepared in Example 1 of the present application.

[0031] Figure 2 is the transmission electron microscope (TEM) of the anti-fingerprint liquid fluorine-containing coating material prepared in Example 1 of the present application. DETAILED DESCRIPTION

[0032] The technical solutions of the present application are described below by specific examples. It should be understood that the one or more method steps mentioned in the present application do not exclude the existence of other method steps before and after the combination steps or the insertion of other method steps between the explicitly mentioned steps; it should also be understood that these examples are only used to illustrate the present application and not to limit the scope of the present application. Moreover, unless otherwise stated, the numbering of each method step is only a convenient tool to identify each method step, and is not a limitation on the arrangement order of each method step or the scope of the implementation of the present application. Changes or adjustments of the relative relationship without substantial changes in technical content are also considered as the scope of the implementation of the present application.

[0033] In order to better understand the above technical solutions, the exemplary embodiments of the present application are described in more detail below. Although exemplary embodiments of the present application are shown, it should be understood that the present application 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 application and to convey the complete scope of the present application to those skilled in the art.

[0034] The present application is further described below in conjunction with the following examples.

[0035] Example 1

[0036] A fingerprint-resistant liquid fluorine-containing coating material comprises, by weight fraction:

[0037] 20 parts of ethyl acrylate, 25 parts of methyl methacrylate, 8 parts of hydroxyethyl methacrylate, 15 parts of hexafluorobutyl acrylate, 10 parts of fluorine-containing allyl benzoxazine, 4 parts of adhesive, 3 parts of initiator, 0.3 parts of leveling agent, 0.1 parts of defoaming agent, 1.5 parts of light stabilizer, and 17 parts of solvent.

[0038] The preparation method of the fluorine-containing allyl benzoxazine comprises the following steps:

[0039] 4.1 g of magnolia officinalis phenol, 7.6 g of 4-amino-2, 5, 6-trifluoropyrimidine, and 16.2 g of paraformaldehyde (molecular weight 270) are weighed and dissolved in 200 mL of 1, 4-dioxane. Under argon protection, the temperature is raised to 110°C, and the condensation reflux reaction is carried out for 8 hours. After the reaction is completed, the temperature is cooled to room temperature, the solvent is removed by rotary evaporation, and then the product is recrystallized with toluene. After drying, the fluorine-containing allyl benzoxazine is obtained.

[0040] A small amount of the obtained fluorine-containing allyl benzoxazine is placed on a pressed transparent KBr salt sheet for infrared detection. The scanning range is 4000-500 cm -1 , the resolution is 4 cm -1 , and the scanning number is 32. The obtained Fourier infrared spectrum (FT-IR) is shown in Figure 1 . Figure 1 Among them, 1290 cm -1 is the absorption peak of trifluoro bond (-CF3), 1613 cm -1 is the absorption peak of double bond (C=C), and 1133 cm -1 is the absorption peak of ether bond (C-O-C) in oxazine ring. It can be inferred that the fluorine-containing allyl benzoxazine has been successfully synthesized.

[0041] The adhesive is aliphatic polyurethane acrylate RJ423; the initiator is photoinitiator 184; the light stabilizer is UV-292; the leveling agent is BYK-306; the defoaming agent is BYK-066N; and the solvent is ethyl acetate.

[0042] The preparation method of the fingerprint-resistant liquid fluorine-containing coating material comprises the following steps:

[0043] Step 1: ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, hexafluorobutyl acrylate, fluorine-containing allyl benzoxazine, adhesive, and solvent are weighed and mixed according to the weight fraction, and stirred at a speed of 500 r / min for 8 min to obtain a mixed liquid A;

[0044] Step 2, add initiator, leveling agent, defoaming agent and light stabilizer to the mixed solution A, stir at a speed of 1000 r / min for 12 min to obtain mixed solution B;

[0045] Step 3, coat the mixed solution B on the oil-removed substrate with a coating thickness of 45 μm, then place it in an oven at 60℃ for 3 min, and then cure it under a UV lamp with an intensity of 750 mJ / cm 2 to obtain the fingerprint-resistant liquid fluorine-containing coating material.

[0046] Figure 2 is a transmission electron microscope (TEM) image of the prepared fingerprint-resistant liquid fluorine-containing coating material. As can be seen from the image, the fingerprint-resistant liquid fluorine-containing coating presents a cross-linked network structure. The cross-linked network can limit the random motion of the polymer chain, so that the fluorine-containing side chain (such as -CF3, etc.) can be more stably arranged on the surface of the material to form a low surface energy layer.

[0047] Example 2

[0048] A fingerprint-resistant liquid fluorine-containing coating material, according to weight fraction, comprises:

[0049] Ethyl acrylate 15 parts, methyl methacrylate 20 parts, hydroxyethyl methacrylate 3 parts, hexafluorobutyl acrylate 12 parts, fluorine-containing allyl benzoxazine 5 parts, adhesive 2 parts, initiator 1 part, leveling agent 0.1 part, defoaming agent 0.05 part, light stabilizer 0.5 part and solvent 12 parts.

[0050] The preparation method of the fluorine-containing allyl benzoxazine is the same as that of Example 1.

[0051] The adhesive is aliphatic polyurethane acrylate RJ424. The initiator is photoinitiator TPO; the light stabilizer is UV-292. The leveling agent is BYK-358N. The defoaming agent is TEGO Foamex 810. The solvent is butyl acetate.

[0052] Example 3

[0053] A fingerprint-resistant liquid fluorine-containing coating material, according to weight fraction, comprises:

[0054] Ethyl acrylate 25 parts, methyl methacrylate 30 parts, hydroxyethyl methacrylate 10 parts, hexafluorobutyl acrylate 18 parts, fluorine-containing allyl benzoxazine 15 parts, adhesive 6 parts, initiator 5 parts, leveling agent 0.5 parts, defoaming agent 0.15 parts, light stabilizer 2.5 parts and solvent 20 parts.

[0055] The preparation method of the fluorine-containing allyl benzoxazine is the same as that in Embodiment 1.

[0056] The adhesive is one or a mixture of more than one of aliphatic polyurethane acrylate RJ422. The initiator is photoinitiator TPO; the light stabilizer is UV-292. The leveling agent is EFKA-3777. The defoaming agent is BYK-022. The solvent is propylene glycol methyl ether.

[0057] Embodiment 4

[0058] A fingerprint-resistant liquid fluorine-containing coating material, which is different from Embodiment 1 only in that the preparation method of the fluorine-containing allyl benzoxazine is different.

[0059] In this embodiment, the preparation method of the fluorine-containing allyl benzoxazine comprises the following steps:

[0060] 2.7 g magnolol, 5.1 g 4-amino-2,5,6-trifluoropyrimidine, and 10.8 g paraformaldehyde (molecular weight 270) are weighed out respectively and dissolved in 100 mL N,N-dimethylformamide, and then heated to 110°C under argon protection, and condensed to reflux for 10 h. After the reaction is completed, the mixture is cooled to room temperature, and the solvent is removed by rotary evaporation. Then, the mixture is subjected to recrystallization treatment with toluene, and dried to obtain the fluorine-containing allyl benzoxazine.

[0061] Embodiment 5

[0062] A fingerprint-resistant liquid fluorine-containing coating material, which is different from Embodiment 1 only in that the preparation method of the fluorine-containing allyl benzoxazine is different.

[0063] In this embodiment, the preparation method of the fluorine-containing allyl benzoxazine comprises the following steps:

[0064] 2.7 g magnolol, 5.1 g 4-amino-2,5,6-trifluoropyrimidine, and 10.8 g paraformaldehyde (molecular weight 270) are weighed out respectively and dissolved in 100 mL N,N-dimethylformamide, and then heated to 110°C under argon protection, and condensed to reflux for 10 h. After the reaction is completed, the mixture is cooled to room temperature, and the solvent is removed by rotary evaporation. Then, the mixture is subjected to recrystallization treatment with toluene, and dried to obtain the fluorine-containing allyl benzoxazine.

[0065] Embodiment 6

[0066] A preparation method of a fingerprint-resistant liquid fluorine-containing coating material, which comprises the following steps:

[0067] Step 1, ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, hexafluorobutyl acrylate, fluorine-containing allyl benzoxazine, adhesive, and solvent are weighed out according to the weight ratio, mixed, and stirred at a speed of 400 r / min for 10 min to obtain a mixed liquid A.

[0068] Step 2, add initiator, leveling agent, defoaming agent and light stabilizer to the mixed solution A, stir at a speed of 800 r / min for 16 min to obtain mixed solution B;

[0069] Step 3, coat the mixed solution B on the oil-removed substrate with a coating thickness of 30 μm, then place it in an oven at 50°C for 5 min, and then cure it under a UV lamp with an intensity of 500 mJ / cm 2 to obtain the fingerprint-resistant liquid fluorine-containing coating material.

[0070] Example 7

[0071] A method for preparing a fingerprint-resistant liquid fluorine-containing coating material, comprising the following steps:

[0072] Step 1, mix ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, hexafluorobutyl acrylate, fluorine-containing allyl benzoxazine, adhesive and solvent according to the weight ratio, stir at a speed of 600 r / min for 5 min to obtain mixed solution A;

[0073] Step 2, add initiator, leveling agent, defoaming agent and light stabilizer to the mixed solution A, stir at a speed of 1200 r / min for 8 min to obtain mixed solution B;

[0074] Step 3, coat the mixed solution B on the oil-removed substrate with a coating thickness of 75 μm, then place it in an oven at 80°C for 1 min, and then cure it under a UV lamp with an intensity of 1000 mJ / cm 2 to obtain the fingerprint-resistant liquid fluorine-containing coating material.

[0075] Comparative Example 1

[0076] A fingerprint-resistant liquid fluorine-containing coating material, which is different from Example 1 only in that the fluorine-containing allyl benzoxazine is completely replaced by hexafluorobutyl acrylate.

[0077] In this comparative example, the fingerprint-resistant liquid fluorine-containing coating material comprises, by weight ratio:

[0078] ethyl acrylate 20 parts, methyl methacrylate 25 parts, hydroxyethyl methacrylate 8 parts, hexafluorobutyl acrylate 25 parts, adhesive 4 parts, initiator 3 parts, leveling agent 0.3 parts, defoaming agent 0.1 parts, light stabilizer 1.5 parts and solvent 17 parts.

[0079] Comparative Example 2

[0080] A kind of fingerprint-resistant liquid fluorine-containing coating material, only difference with example 1 is that fluorine-containing allyl benzoxazine is replaced by allyl benzoxazine, and allyl benzoxazine is prepared by Mannich reaction of o-diallyl bisphenol A, m-toluidine and polyformaldehyde.

[0081] In the present comparative example, the preparation method of allyl benzoxazine includes:

[0082] 3.1 g of o-diallyl bisphenol A, 2.2 g of m-toluidine and 16.2 g of polyformaldehyde (molecular weight 270) are weighed respectively and dissolved in 200 mL of 1,4-dioxane, and then heated to 110°C under argon protection, and the condensate is refluxed for 8 h. After the reaction is completed, it is cooled to room temperature, and then the solvent is removed by rotary evaporation. Then, it is recrystallized with toluene, and then dried to obtain allyl benzoxazine.

[0083] In the present comparative example, the fingerprint-resistant liquid fluorine-containing coating material includes, by weight fraction:

[0084] Ethyl acrylate 20 parts, methyl methacrylate 25 parts, hydroxyethyl methacrylate 8 parts, hexafluorobutyl acrylate 15 parts, allyl benzoxazine 10 parts, adhesive 4 parts, initiator 3 parts, leveling agent 0.3 parts, defoaming agent 0.1 parts, light stabilizer 1.5 parts and solvent 17 parts.

[0085] Experimental example

[0086] The present application is tested for the most optimal example (example 1), and the corresponding control example (comparative example 1 and comparative example 2), and the water contact angle is tested according to ASTM D7334 (coating surface water contact angle test), the abrasion resistance is tested according to ASTM D1044 (Taber abrasion tester, CS-10 wheel, 1 kg load), the high temperature resistance is tested according to GB / T1735-2009 (200°C / 48h), and the solvent resistance is tested according to ASTM D471 (ethanol immersion for 72 h). The test results are shown in the following table:

[0087]

[0088] As can be seen from the above table, the hydrophobicity, hardness and abrasion resistance of the fingerprint-resistant liquid fluorine-containing coating material prepared in example 1 of the present application are significantly better than those of comparative examples 1 and 2, and in addition, it can also maintain excellent high temperature resistance and solvent resistance. Therefore, it can be shown that the comprehensive performance of the fingerprint-resistant liquid fluorine-containing coating material prepared in example 1 of the present application is more excellent.

[0089] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A wear resistant, anti-fingerprint liquid fluorocarbon coating material, characterized by, According to the weight parts, including: Ethyl acrylate 15-25 parts, methyl methacrylate 20-30 parts, hydroxyethyl methacrylate 3-10 parts, hexafluorobutyl acrylate 12-18 parts, fluorine-containing allyl benzoxazine 5-15 parts, adhesive 2-6 parts, initiator 1-5 parts, leveling agent 0.1-0.5 parts, defoaming agent 0.05-0.15 parts, light stabilizer 0.5-2.5 parts and solvent 12-20 parts; Wherein, the fluorine-containing allyl benzoxazine is prepared by Mannich condensation reaction with magnolol, 4-amino-2,5,6-trifluoropyrimidine and paraformaldehyde as raw materials.

2. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 1, wherein, The preparation method of the fluorine-containing allyl benzoxazine comprises the following steps: Magnolol, 4-amino-2,5,6-trifluoropyrimidine and paraformaldehyde are respectively weighed and dissolved in an organic solvent, heated to 110-120℃, and condensed refluxed for 3-10h. After the reaction is completed, it is cooled to room temperature, the solvent is removed by rotary evaporation, then treated by recrystallization with toluene, and dried to obtain the fluorine-containing allyl benzoxazine.

3. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 2, wherein, In the preparation of the fluorine-containing allyl benzoxazine, the organic solvent is one or a mixture of more than one of 1,4-dioxane, N,N-dimethylformamide, N,N-dimethylacetamide, toluene and xylene.

4. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 2, wherein, In the preparation of the fluorine-containing allyl benzoxazine, the mass-volume ratio of magnolol, 4-amino-2,5,6-trifluoropyrimidine, paraformaldehyde and organic solvent is (2.7-5.4)g:(5.1-10.2)g:(10.8-21.6)g:(100-300)mL.

5. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 1, wherein, The adhesive is polyurethane acrylate; the initiator is photoinitiator 184 or photoinitiator TPO; and the light stabilizer is UV-292.

6. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 1, wherein, The leveling agent is one or a mixture of more than one of BYK-306, BYK-358N and EFKA-3777.

7. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 1, wherein, The defoaming agent is one or a mixture of more than one of BYK-066N, TEGO Foamex 810 and BYK-022.

8. The abrasion resistant, anti-fingerprint liquid fluorocarbon coating material according to claim 1, wherein, The solvent is one or a mixture of more than one of ethyl acetate, butyl acetate, isopropyl alcohol, isobutyl alcohol, propylene glycol methyl ether and propylene glycol butyl ether.

9. A method of preparing the anti-fingerprint liquid fluorine-containing coating material according to claim 1, characterized by, The method comprises the following steps: Step 1, ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, hexafluorobutyl acrylate, fluorine-containing allyl benzoxazine, adhesive and solvent are weighed according to the weight parts and mixed, and stirred at a speed of 400-600r / min for 5-10min to obtain a mixed solution A; Step 2, the initiator, leveling agent, defoaming agent and light stabilizer are added into the mixed solution A, and stirred at a speed of 800-1200r / min for 8-16min to obtain a mixed solution B; Step 3, coating the mixed solution B on the substrate with a coating thickness of 5-100 μm, then placing in an oven at 50-80 °C for 1-5 min, and then curing under a UV lamp with light intensity of 500-1000 mJ / cm 2 to obtain a fingerprint-resistant liquid fluorine-containing coating material.

10. The anti-fingerprint liquid fluorine-containing coating material of claim 1 is used as an anti-fingerprint coating in the field of plastic, glass or metal materials.

Citation Information

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