An epoxy acrylate resin coating based on naphthalene ring / cyclopentadiene structure and its wear-resistant coating

Abstract

The application provides a naphthalene ring / cyclopentadiene structure-based epoxy acrylate resin coating and a wear-resistant coating thereof, and belongs to the technical field of wear-resistant coatings. The naphthalene ring / cyclopentadiene structure-based epoxy resin with excellent performance is obtained by modifying the epoxy acrylate resin, adding a rigid naphthalene ring skeleton and a high-water-repellent dicyclopentadiene structure; the naphthalene ring / cyclopentadiene structure-based epoxy resin is used as a resin raw material, and allyl diglycol carbonate is supplemented, so that a more wear-resistant surface coating is obtained, the surface wear of components and devices can be significantly reduced after the application, and the purpose of improving work efficiency and reducing production cost is achieved.

Description

Technical Field

[0001] This invention relates to the field of wear-resistant coating technology, and in particular to an epoxy acrylic resin coating based on a naphthalene ring / cyclopentadiene structure and its wear-resistant coating. Background Technology

[0002] For processing equipment that has been used for a long time, its various components will wear down due to friction generated during operation, gradually losing their ideal working strength and eventually becoming unusable. Applying a wear-resistant coating to the surface of these components can effectively extend their service life and reduce costs.

[0003] Currently, epoxy resins are widely used in the preparation of wear-resistant coatings. As an important type of thermosetting polymer, epoxy resins possess excellent properties and can be used as coatings, casting materials, molding compounds, adhesives, etc., in fields such as aerospace, electronics, civil engineering, and food packaging. However, traditional epoxy resins are brittle and have poor wear resistance, making it difficult for coatings prepared with them to withstand high-intensity special environments and achieve ideal protective effects. Therefore, how to achieve coating materials with higher wear resistance using epoxy resins as a starting point is one of the directions of high-performance resin research. Summary of the Invention

[0004] In view of this, the present invention aims to provide an epoxy acrylic resin coating based on a naphthalene ring / cyclopentadiene structure and its wear-resistant coating thereof. The wear-resistant coating prepared from the epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention exhibits excellent wear resistance.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] This invention provides an epoxy acrylic resin coating based on a naphthalene ring / cyclopentadiene structure, comprising the following raw materials in parts by weight:

[0007]

[0008] The epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure has the structure shown in Formula I:

[0009]

[0010] In Equation I, n = 1 to 5.

[0011] Preferably, the preparation method of the epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure includes the following steps:

[0012] An epoxy resin containing a naphthalene ring / cyclopentadiene structure, having the structure shown in Formula II, an organic solvent, acrylic acid, and a catalyst are mixed and subjected to a grafting reaction to obtain an epoxy acrylic resin based on the naphthalene ring / cyclopentadiene structure.

[0013]

[0014] In Equation II, n = 1 to 5.

[0015] Preferably, the mass of the acrylic acid is 10-30% of the epoxy resin containing the naphthalene ring / cyclopentadiene structure;

[0016] The catalyst is one or more of N,N-dimethylethanolamine, N,N-dimethylformamide, triethylamine, and triethanolamine;

[0017] The grafting reaction is carried out at a temperature of 70–120°C for 2–6 hours.

[0018] Preferably, the vinyl silane coupling agent is one or more of vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetoxysilane, vinyltrichlorosilane, and γ-methacryloyloxypropyltrimethoxysilane.

[0019] Preferably, the initiator is a thermal initiator and / or a photoinitiator;

[0020] The thermal initiator is one or more of benzoyl peroxide, azobisisobutyronitrile, dodecyl peroxide, and persulfate;

[0021] The photoinitiator is one or more of methyl vinyl ketone, benzophenone, benzoin, 1-hydroxycyclohexylphenyl ketone, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, and 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

[0022] Preferably, the pigments and fillers are one or more of titanium dioxide, carbon black, iron oxide red, phthalocyanine blue, iron oxide yellow, calcium carbonate, silicon dioxide, talc, and mica powder.

[0023] The leveling agent is a silicone-based leveling agent and / or an acrylate-based leveling agent;

[0024] The dispersant is one or more of polyoxyethylene ether, polyacrylic acid and polysiloxane;

[0025] The film-forming aid is an alcohol ether film-forming aid and / or an alcohol ester film-forming aid.

[0026] The present invention provides a method for obtaining an epoxy acrylate resin coating film based on the above-mentioned naphthalene ring / cyclopentadiene structure.

[0027] Preferably, the thickness of the epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure is 10 to 1000 μm.

[0028] This invention provides a method for preparing the above-mentioned wear-resistant coating of epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure, comprising the following steps:

[0029] An epoxy acrylate resin based on a naphthalene ring / cyclopentadiene structure, allyl diethylene glycol carbonate, vinyl silane coupling agent, initiator, pigments and fillers, leveling agent, dispersant and film-forming aid are mixed to obtain an epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure.

[0030] The epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure is applied to the substrate surface and cured to obtain an epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure.

[0031] Preferably, the coating method is one or more of spraying, scraping, rolling and spin coating;

[0032] The curing process is photocuring and / or thermocuring.

[0033] This invention provides an epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure, comprising the following raw materials in parts by weight: 10-50 parts of epoxy acrylate resin based on a naphthalene ring / cyclopentadiene structure; 10-30 parts of allyl diethylene glycol carbonate; 1-10 parts of vinyl silane coupling agent; 1-5 parts of initiator; 5-20 parts of pigments and fillers; 0.2-6 parts of additives; 0.5-1.5 parts of leveling agent; 0.5-1.5 parts of dispersant; and 0.5-1.5 parts of film-forming aid. The epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure has the structure shown in Formula I. Epoxy acrylate (EA) is one of the most widely used and consumed photocurable oligomers. Among various oligomers, it has the fastest photocuring speed. Its cured coating film exhibits good hardness, gloss, corrosion resistance, heat resistance, and electrochemical properties, and is widely used in photocurable coatings. Dicyclopentadiene (DCPD) is an important chemical intermediate, industrially obtained from the C5 fraction of ethylene cracking. Its two double bonds exhibit high reactivity, reacting with a variety of compounds. This invention modifies epoxy acrylate resin by incorporating a rigid naphthalene ring backbone and a highly hydrophobic dicyclopentadiene structure, resulting in a high-performance epoxy resin containing a naphthalene ring / cyclopentadiene structure. Using this naphthalene ring / cyclopentadiene structure epoxy resin as the raw material, and supplemented with allyl diethylene glycol carbonate, a more wear-resistant surface coating is obtained. After application, this coating significantly reduces surface wear on components, thereby improving work efficiency and reducing production costs. Detailed Implementation

[0034] This invention provides an epoxy acrylic resin coating based on a naphthalene ring / cyclopentadiene structure, comprising the following raw materials in parts by weight:

[0035]

[0036] The epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure has the structure shown in Formula I:

[0037]

[0038] In Formula I, n = 1 to 5, preferably 1 to 4, and more preferably 2 to 3.

[0039] Unless otherwise specified, all raw materials used in this invention are commercially available.

[0040] The epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention, by weight, comprises 10 to 50 parts of the epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure, preferably 20 to 40 parts, more preferably 30 parts. In the present invention, the preparation method of the epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure preferably includes the following steps:

[0041] An epoxy resin containing a naphthalene ring / cyclopentadiene structure, an organic solvent, acrylic acid, and a catalyst are mixed and grafted to obtain an epoxy acrylic resin based on a naphthalene ring / cyclopentadiene structure.

[0042] In this invention, the structure of the epoxy resin containing the naphthalene ring / cyclopentadiene structure is shown in Formula II:

[0043]

[0044] In Formula II, n = 1 to 5, preferably 1 to 4, and more preferably 2 to 3.

[0045] In this invention, the epoxy resin containing the naphthalene ring / cyclopentadiene structure is preferably sourced from commercially available sources. As a specific embodiment of this invention, the epoxy resin containing the naphthalene ring / cyclopentadiene structure is purchased from Anhui Shanfu, and its model number is SF-30.

[0046] In this invention, the organic solvent is preferably one or more of n-butanol, ethylene glycol butyl ether, and propylene glycol monomethyl ether; the mass of the organic solvent is preferably 2 to 5 times that of the epoxy resin containing the naphthalene ring / cyclopentadiene structure, more preferably 3 to 4 times.

[0047] In this invention, the mass of the acrylic acid is preferably 10-30% of the epoxy resin containing the naphthalene ring / cyclopentadiene structure, more preferably 15-25%, and even more preferably 20%.

[0048] In this invention, the catalyst is preferably one or more of N,N-dimethylethanolamine, N,N-dimethylformamide, triethylamine and triethanolamine; the mass of the catalyst is preferably 0.5-5% of the epoxy resin containing a naphthalene ring / cyclopentadiene structure, more preferably 1-3%.

[0049] In this invention, the preferred mixing method is as follows: epoxy resin containing a naphthalene ring / cyclopentadiene structure and an organic solvent are added to a four-necked flask equipped with a stirrer, a condenser, a constant pressure funnel, and a thermometer, the temperature is raised to the grafting reaction temperature, and a mixture of acrylic acid and catalyst is slowly added dropwise over 0.5 to 1 hour.

[0050] In this invention, the temperature of the grafting reaction is preferably 70-120°C, more preferably 80-100°C; the time is preferably 2-6 hours, more preferably 3-5 hours.

[0051] Following the grafting reaction, the present invention preferably includes evaporating to remove the solvent and unreacted acrylic monomer from the resulting grafting product.

[0052] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention comprises 10 to 30 parts of allyl diethylene glycol carbonate, preferably 15 to 25 parts, and more preferably 20 parts. In the present invention, the allyl diethylene glycol carbonate serves to increase the double bond crosslinking sites.

[0053] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate coating with the naphthalene ring / cyclopentadiene structure provided by the present invention comprises 1 to 5 parts of an initiator, preferably 2 to 4 parts, and more preferably 3 parts. In the present invention, the initiator is preferably a thermal initiator and / or a photoinitiator;

[0054] The thermal initiator is preferably one or more of benzoyl peroxide, azobisisobutyronitrile, dodecyl peroxide, and persulfate.

[0055] The photoinitiator is preferably one or more of methyl vinyl ketone, benzophenone, benzoin, 1-hydroxycyclohexylphenyl ketone, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, and 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

[0056] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention comprises 5 to 20 parts of pigments and fillers, preferably 10 to 15 parts. In the present invention, the pigments and fillers are preferably one or more of titanium dioxide, carbon black, iron oxide red, phthalocyanine blue, iron oxide yellow, calcium carbonate, silica, talc, and mica powder. In the present invention, the particle size of the pigments and fillers is preferably 10 to 100 nm, more preferably 40 to 60 nm.

[0057] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention includes 0.5 to 1.5 parts of leveling agent, preferably 0.8 to 1.2 parts, and more preferably 1 part. In the present invention, the leveling agent is preferably an organosilicon leveling agent and / or an acrylate leveling agent. As a specific embodiment of the present invention, the model of the leveling agent is [model number missing]. F-701B.

[0058] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate resin coating with the naphthalene ring / cyclopentadiene structure provided by the present invention includes 0.5 to 1.5 parts of dispersant, preferably 0.8 to 1.2 parts, and more preferably 1 part. In the present invention, the dispersant is preferably one or more of polyoxyethylene ether, polyacrylic acid, and polysiloxane.

[0059] Based on the mass fraction of the epoxy acrylate resin with the naphthalene ring / cyclopentadiene structure, the epoxy acrylate resin coating with the naphthalene ring / cyclopentadiene structure provided by the present invention includes 0.5 to 1.5 parts of film-forming aid, preferably 0.8 to 1.2 parts, and more preferably 1 part.

[0060] In this invention, the film-forming aid is preferably an alcohol ether film-forming aid and / or an alcohol ester film-forming aid.

[0061] This invention provides an epoxy acrylate resin wear-resistant coating based on a naphthalene ring / cyclopentadiene structure, obtained by forming a film from the aforementioned epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure. In this invention, the thickness of the epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure is preferably 10–1000 μm, more preferably 50–800 μm, and even more preferably 100–500 μm.

[0062] This invention provides a method for preparing the above-mentioned wear-resistant coating of epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure, comprising the following steps:

[0063] An epoxy acrylate resin based on a naphthalene ring / cyclopentadiene structure, allyl diethylene glycol carbonate, vinyl silane coupling agent, initiator, pigments and fillers, leveling agent, dispersant and film-forming aid are mixed to obtain an epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure.

[0064] The epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure is applied to the substrate surface and cured to obtain an epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure.

[0065] This invention mixes an epoxy acrylate resin based on a naphthalene ring / cyclopentadiene structure, allyl diethylene glycol carbonate, a vinyl silane coupling agent, an initiator, pigments and fillers, a leveling agent, a dispersant, and a film-forming aid to obtain an epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure. This invention does not impose special requirements on the mixing method; any mixing method well-known to those skilled in the art can be used to mix the above components uniformly.

[0066] The present invention applies the epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure to the surface of a substrate and cures it to obtain an epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure.

[0067] In this invention, the substrate is preferably a mechanical equipment component, and the material is preferably 316 or 304 stainless steel.

[0068] In this invention, the coating method is preferably one or more of spraying, scraping, rolling and spinning.

[0069] In this invention, the curing is preferably photocuring and / or thermal curing.

[0070] The following detailed description, in conjunction with embodiments, illustrates the epoxy acrylic resin coating and its wear-resistant coating based on the naphthalene ring / cyclopentadiene structure provided by the present invention. However, these descriptions should not be construed as limiting the scope of protection of the present invention.

[0071] Example 1

[0072] Take an appropriate amount of epoxy resin containing a naphthalene ring / cyclopentadiene structure and three times the mass of the epoxy resin with n-butanol, dissolve them, and add them to a four-necked flask equipped with a stirrer, condenser, constant pressure funnel, and thermometer. After heating to 85°C, slowly add a mixture of 20% (by mass) acrylic acid and 2.5% (by mass) N,N-dimethylethanolamine, completing the addition within 0.5 hours, and continue the reaction for 3.5 hours. After the reaction is complete, evaporate the solvent and unreacted acrylic acid monomer to obtain an epoxy acrylic resin based on a naphthalene ring / cyclopentadiene structure.

[0073] Take 20 parts of the naphthalene ring / cyclopentadiene structure epoxy acrylate resin prepared in the previous step, add 15 parts of allyl diethylene glycol carbonate, 5 parts of vinyltrimethoxysilane, 3 parts of benzoyl peroxide, 10 parts of carbon black, 10 parts of mica powder, 1 part of organosilicon leveling agent (BYK-333, BYK, Germany), 1 part of polyacrylic acid dispersant (EFKA-4550, BASF), and 1 part of alcohol ether film-forming aid (AEO5-80, Sasol), mix evenly to obtain a coating; then, apply it to the surface of the object using a spraying process and heat it at a temperature of 150℃ for 20 minutes to obtain a wear-resistant coating based on the naphthalene ring / cyclopentadiene structure epoxy acrylate resin.

[0074] Example 2

[0075] Take an appropriate amount of epoxy resin containing a naphthalene ring / cyclopentadiene structure and n-butanol in an amount twice the mass of the epoxy resin, dissolve them, and add them to a four-necked flask equipped with a stirrer, condenser, constant pressure funnel, and thermometer. After heating to 105°C, slowly add a mixture of 15% acrylic acid and 2% N,N-dimethylformamide (by mass of the epoxy resin), completing the addition within 1 hour, and continue the reaction for 6 hours. After the reaction is complete, evaporate the solvent and unreacted acrylic acid monomer to obtain an epoxy acrylic resin based on a naphthalene ring / cyclopentadiene structure.

[0076] Take 35 parts of the naphthalene ring / cyclopentadiene structure epoxy acrylate resin prepared in the previous step, add 20 parts of allyl diethylene glycol carbonate, 3 parts of vinyl trichlorosilane, 2 parts of benzoin, 8 parts of titanium dioxide, 8 parts of talc, and 0.5 parts of acrylate leveling agent. F-701B (Tai'er Chemical), 0.5 parts polysiloxane dispersant (TEGO Dispers 610S, DIG), and 0.5 parts alcohol ester film-forming aid (TEXANOL OE300, Eastman) were mixed evenly to obtain a coating. Then, the coating was applied to the surface of the object using a spin coating process and cured with ultraviolet light at a wavelength of 365nm for 80s to obtain a wear-resistant coating of epoxy acrylic resin based on a naphthalene ring / cyclopentadiene structure.

[0077] Performance testing

[0078] The adhesion, pencil hardness, and abrasion resistance of the cured coatings prepared in Examples 1 and 2 were tested respectively, and the results are listed in Table 1. The test conditions are as follows:

[0079] Hardness test: Pencil hardness, in accordance with standard GB / T 6739-2022;

[0080] Test method: Mount the pencil on the hardness tester and secure it with clamps to keep the instrument horizontal. Immediately after the pencil tip touches the paint film, slowly and evenly push the pencil away from the operator for a sufficient distance to allow for visual inspection. Wipe away any pencil lead debris with a soft cloth or cotton and observe the sample surface for defects. If no defects are found, repeat the test in an area where no defects were found using a pencil of higher hardness until a defect of at least 3mm appears.

[0081] Adhesion test: Cross-cut adhesion test, in accordance with standard GB / T 4893.4-2023;

[0082] Test method: Using a cross-cutting tool and a blade, make 10 parallel cuts evenly on the sample, spaced 2mm apart. Then, use 3M tape to adhere and press firmly the cuts, and pull them at a 45° angle upwards. Repeat 3 times and observe the coating peeling at the cuts.

[0083] The adhesion test results indicate that:

[0084] Grade 0 - The lines are smooth with no missing grid lines;

[0085] Level 1 - There is a small amount of paint film peeling off at the cutting intersection, and the total peeling area is less than or equal to 5%;

[0086] Level 2 - There is a small amount of paint film peeling off at the cut edges and intersections, and the total peeling area is between 5% and 15%;

[0087] Grade 3 - The paint film peels off along the cut edge or entirely in large fragments, and the total area of ​​peeling off is between 15% and 35%.

[0088] Grade 4 - The paint film peels off along the cut edge or entirely in large fragments, and the total area of ​​peeling off is between 35% and 65%.

[0089] Level 5 - Any degree of shedding beyond Level 4.

[0090] Abrasion resistance test: Abrasion resistance test was conducted using the American Taber abrasion tester, in accordance with the standard ASTM D-4060.

[0091] The reciprocating motion test method is used. The sample is mounted on the grinding turntable platform with the side to be ground facing upwards, and fixed with clamps and nuts. The grinding head and vacuum nozzle of the test sample are placed in the standard position, and a fixed load of 1 kg is applied. The sample surface is subjected to friction cycles until coating wear is observed. After 1000 cycles, the coating surface is considered to be unaffected or the wear mass loss does not exceed 0.02g, which is considered a pass.

[0092] Table 1. Performance of abrasion-resistant coatings based on naphthalene ring / cyclopentadiene structure epoxy acrylate resins

[0093] hardness 5H 6H Adhesion Level 0 Level 0 Abrasion resistance (1000 cycles) pass pass

[0094] As can be seen from the data in Table 1, the wear-resistant coating based on the naphthalene ring / cyclopentadiene structure of epoxy acrylate resin provided by the present invention has good wear resistance and excellent performance.

[0095] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An epoxy acrylic resin coating based on a naphthalene ring / cyclopentadiene structure, comprising the following raw materials in parts by weight: 10-50 parts of epoxy acrylate resin based on naphthalene ring / cyclopentadiene structure; 10-30 parts of allyl diethylene glycol carbonate; 1-10 parts of vinylsilane coupling agent; 1-5 parts of initiator; 5-20 parts of pigments and fillers; Leveling agent 0.5~1.5 parts; Dispersant 0.5~1.5 parts; Film-forming aid 0.5~1.5 parts; The epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure has the structure shown in Formula I: Formula I; In Equation I, n = 1 to 5.

2. The epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure according to claim 1, characterized in that, The preparation method of the epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure includes the following steps: An epoxy resin containing a naphthalene ring / cyclopentadiene structure with the structure shown in Formula II, an organic solvent, acrylic acid and a catalyst are mixed and grafted to obtain an epoxy acrylic resin based on the naphthalene ring / cyclopentadiene structure. Formula II; In Equation II, n = 1~5.

3. The epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure according to claim 2, characterized in that, The mass of the acrylic acid is 10-30% of the epoxy resin containing a naphthalene ring / cyclopentadiene structure; The catalyst is one or more of N,N-dimethylethanolamine, N,N-dimethylformamide, triethylamine, and triethanolamine; The grafting reaction is carried out at a temperature of 70~120℃ for 2~6 hours.

4. The epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure according to claim 1, characterized in that, The vinyl silane coupling agent is one or more of vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetoxysilane, vinyltrichlorosilane, and γ-methacryloyloxypropyltrimethoxysilane.

5. The epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure according to claim 1, characterized in that, The initiator is a thermal initiator and / or a photoinitiator; The thermal initiator is one or more of benzoyl peroxide, azobisisobutyronitrile, dodecyl peroxide, and persulfate; The photoinitiator is one or more of methyl vinyl ketone, benzophenone, benzoin, 1-hydroxycyclohexylphenyl ketone, and 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

6. The epoxy acrylic resin coating based on the naphthalene ring / cyclopentadiene structure according to claim 1, characterized in that, The pigments and fillers are one or more of titanium dioxide, carbon black, iron oxide red, phthalocyanine blue, iron oxide yellow, calcium carbonate, silicon dioxide, talc, and mica powder. The leveling agent is a silicone-based leveling agent and / or an acrylate-based leveling agent; The dispersant is one or more of polyoxyethylene ether, polyacrylic acid and polysiloxane; The film-forming aid is an alcohol ether film-forming aid and / or an alcohol ester film-forming aid.

7. An epoxy acrylate resin wear-resistant coating based on a naphthalene ring / cyclopentadiene structure, obtained by forming a film from the epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure as described in any one of claims 1 to 6.

8. The epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure according to claim 7, characterized in that, The thickness of the epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure is 10~1000 μm.

9. The method for preparing the wear-resistant coating of epoxy acrylate resin based on the naphthalene ring / cyclopentadiene structure as described in claim 7 or 8, comprising the following steps: An epoxy acrylate resin based on a naphthalene ring / cyclopentadiene structure, allyl diethylene glycol carbonate, vinyl silane coupling agent, initiator, pigments and fillers, leveling agent, dispersant and film-forming aid are mixed to obtain an epoxy acrylate resin coating based on a naphthalene ring / cyclopentadiene structure. The epoxy acrylate resin coating based on the naphthalene ring / cyclopentadiene structure is applied to the substrate surface and cured to obtain an epoxy acrylate resin wear-resistant coating based on the naphthalene ring / cyclopentadiene structure.

10. The preparation method according to claim 9, characterized in that, The coating method is one or more of the following: spraying, scraping, rolling and swirl coating; The curing process is photocuring and / or thermocuring.

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