Titanium carbide-containing high-strength resin coating and preparation process thereof

Abstract

The invention relates to a high-strength resin coating containing titanium carbide and a preparation process of the high-strength resin coating, and belongs to the technical field of coatings. The coating is formed by mixing a component A and a component B, the component A is prepared from the following components in parts by weight: 50 to 70 parts of modified epoxy resin, 5 to 10 parts of diluent, 10 to 20 parts of filler, 0.5 to 1.5 parts of wetting dispersant and 0.1 to 0.5 part of defoaming agent; the component B comprises the following components in parts by weight: 5-10 parts of mica powder, 25-40 parts of a curing agent and 0.5-2 parts of a coupling agent KH550; the coating prepared by the invention has excellent strength and adhesive force.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coatings and relates to a high-strength resin coating containing titanium carbide and a preparation process thereof. BACKGROUND

[0002] In order to meet the stringent requirements of extreme working conditions on the hardness, wear resistance, impact resistance and durability of the coating, it has become a mainstream technical path to improve the mechanical properties of the coating by introducing high-strength and high-hardness inorganic nano fillers (such as titanium carbide (TiC), silicon carbide, aluminum oxide, etc.) into the resin matrix.

[0003] Titanium carbide is considered as a potential reinforcing phase due to its extremely high hardness, high modulus, good thermal stability and chemical inertness. However, there are the following problems in directly introducing nano TiC into the resin system: 1. The specific surface area of nano TiC is large, and the surface energy is high, which is easy to cause agglomeration in the organic medium; 2. TiC as a typical inorganic polar material has significant physical and chemical property differences with the organic resin matrix, resulting in poor interfacial compatibility and weak bonding force. Under simple physical blending, the interface becomes a weak link for load transfer, and is easy to cause interfacial debonding under external force, which greatly limits the play of its reinforcing and toughening potential. Although surface treatment with silane coupling agent and the like is a common method for improving interfacial bonding, the traditional process (such as simple immersion) is often difficult to form a stable, dense and mainly chemical-bonding grafted layer on the surface of TiC, and the treatment effect is limited and unstable.

[0004] Therefore, it is urgent to develop an organic coating containing titanium carbide with long-term high-strength performance. SUMMARY

[0005] The application aims to provide a high-strength resin coating containing titanium carbide and a preparation process thereof, and the prepared coating has excellent strength and adhesion.

[0006] The object of the application can be achieved by the following technical solutions. A high-strength resin coating containing titanium carbide, which is composed of a mixture of component A and component B; The component A comprises the following components in parts by weight: 50-70 parts of modified epoxy resin, 5-10 parts of diluent, 10-20 parts of filler, 0.5-1.5 parts of wetting dispersant, and 0.1-0.5 parts of defoaming agent; The component B comprises the following components in parts by weight: 5-10 parts of mica powder, 25-40 parts of curing agent, and 0.5-2 parts of coupling agent KH550; The preparation process of the modified epoxy resin is as follows: Mix 60-80 parts of epoxy resin A and 10-20 parts of amino silicone oil under nitrogen protection, stir and mix, and heat to 90-95℃, then add 0.3-0.6 parts of triphenylphosphine, stir for 2-3h, to obtain mixture A; At 55-60℃, add 20-30 parts of epoxy resin B (such as F-51) and solvent to mixture A, stir at a speed of 450r / min for 1-1.5h, to obtain the modified epoxy resin.

[0007] As a preferred technical solution of the present application, the preparation process of the filler is as follows: S1, disperse the titanium carbide pretreated by KH570 in an isopropyl alcohol solution containing 2-3% trimethylolpropane triacrylate and 0.5-0.8% photoinitiator 1173, to obtain a dispersion liquid with a titanium carbide mass fraction of 3-5%, ultrasonic treatment for 1h, irradiate the dispersion liquid with 365nm ultraviolet light for 30-60min under nitrogen protection, centrifugal separation, then wash the solid with isopropyl alcohol, and vacuum drying to obtain solid A; S2, mix solid A, fumed silica and solvent, ultrasonic treatment for 1h to obtain a suspension; add mercaptopropyltrimethoxysilane and photoinitiator 1173 to the suspension, stir at a speed of 400r / min for 30min to obtain mixture B, then irradiate under 365nm ultraviolet light for 60min, filter, ethanol washing, and vacuum drying at 80℃ for 12-20h to obtain the filler.

[0008] As a preferred technical solution of the present application, the diluent is n-butyl glycidyl ether, benzyl glycidyl ether or o-tolyl glycidyl ether.

[0009] As a preferred technical solution of the present application, the epoxy resin A is bisphenol A type epoxy resin, and the epoxy resin B is phenolic epoxy resin.

[0010] As a preferred technical solution of the present application, the wetting dispersant is one or more of BYK-190, BYK-2225 and BYK-2155.

[0011] As a preferred technical solution of the present application, the defoaming agent is one of BYK-028 and BYK-033.

[0012] As a preferred technical solution of the present application, in step S1, the specific process of the KH570 pretreated titanium carbide is as follows: The titanium carbide with a dosage ratio of 1g:20mL is mixed with 1mol / L hydrochloric acid solution, ultrasonically treated at 60℃ with a power of 250W for 2h, and then the acid-treated solid is redispersed in a 30% mass fraction hydrogen peroxide solution with a dosage ratio of 1g:15mL, stirred at 70-80℃ for 8-15h, and the obtained solid is washed with deionized water and anhydrous ethanol to obtain a pretreated solid, which is mixed with KH570, ethanol and 0.1mol / L acetic acid aqueous solution with a dosage ratio of 10g:1mL:200mL:3mL after drying, and stirred for 6-8h to obtain KH570 pretreated titanium carbide.

[0013] As a preferred technical solution of the present application, in step S2, the mass ratio of mercaptopropyl trimethoxysilane, photoinitiator 1173 and solid A is (4-5):(0.2-0.3):1.

[0014] As a preferred technical solution of the present application, in step S2, the dosage ratio of solid A, fumed silica and solvent is 1g:(0.5-1)g:10mL.

[0015] A preparation process of high-strength resin paint containing titanium carbide, comprising the following steps: The modified epoxy resin is mixed with a diluent, stirred at a speed of 600r / min for 20-30min, then the filler, wetting dispersant and defoaming agent are added, and the stirring is continued for 45-70min to obtain component A; The coupling agent and mica powder are mixed first, then the curing agent is added, and after stirring and mixing, component B is obtained, which is then added to component A, and stirred at a speed of 600r / min for 40-60min to obtain the high-strength resin paint.

[0016] The titanium carbide is first subjected to acid treatment to remove impurities and slightly etch to increase the roughness of the titanium carbide surface and reactive sites; then, the titanium carbide surface is subjected to hydroxylation by hydrogen peroxide treatment. Under ultraviolet light, trimethylolpropane triacrylate is partially polymerized / crosslinked on the pretreated titanium carbide surface to form a polymer coating layer, thereby connecting organic segments with C=C double bonds to the titanium carbide; the mercapto groups of mercaptopropyltrimethoxysilane react with the acrylate double bonds on the surface of mixture A to form covalent bonds (C-S bonds); and the methoxysilane of mercaptopropyltrimethoxysilane hydrolyzes into silanol groups (-Si-OH) in the presence of water, which can condense with Si-OH on the surface of fumed SiO2 to form Si-O-Si bonds or condense with each other, thereby gathering a large amount of SiO2 around the titanium carbide, so that the SiO2 is chemically attached to the titanium carbide platelets to effectively prevent the titanium carbide from aggregating face-to-face, making it easier to disperse into nanoscale in the resin, thereby strengthening the interfacial bonding and stress transfer and greatly improving the mechanical properties of the coating, solving the problems of dispersion of TiC, interface between TiC and SiO2, and interface between the composite filler and the resin. Meanwhile, the siloxane groups can react with the resin matrix or form an interpenetrating network during curing of the coating.

[0017] The titanium carbide provides macroscopic hardness and scratch resistance, and the SiO2 is responsible for filling voids, improving compactness, wear resistance, and smoothness of the coating surface, and synergistically improving the hardness, wear resistance, and adhesion of the coating.

[0018] The flexible siloxane segments are first chemically bonded to the epoxy skeleton through epoxy-amine reaction to form an internally toughened flexible skeleton, which significantly improves the impact resistance and fracture toughness of the future coating; then, phenolic epoxy resin is introduced as a high-density crosslinking point to build rigid nodes, thereby realizing the ideal microstructure of uniformly distributed rigid high-crosslinking points in the flexible continuous phase in the final cured network; this effectively offsets the possible decrease in modulus and hardness caused by the introduction of flexible segments, achieving the ideal balance between high strength and high toughness of the coating.

[0019] The prepared coating can synergistically react with the coupling agent KH550 in the B component and the functional groups on the surface of the fillers during the curing stage to enhance the chemical bonding or physical entanglement between the resin and the fillers, realize strong interfacial bonding between the fillers and the resin, and ensure the strength of the coating.

[0020] The addition of the flaky mica powder forms a physical barrier layer in the coating, significantly improving the permeability resistance, corrosion resistance, and weather resistance of the coating. The flaky mica powder and the titanium carbide filler form a complementary and synergistic effect, further optimizing the compactness, mechanical strength, and crack resistance of the coating.

[0021] The beneficial effects of the present application are: The application provides a high-strength resin coating containing titanium carbide, the strength and hardness of the coating are improved through high cross-linking network of phenolic epoxy and rigidity enhancement of titanium carbide; meanwhile, flexible siloxane segments in the resin matrix and polymer shell layers on the surface of fillers can jointly absorb and disperse impact energy; and KH550 in the components cooperates with the resin and the fillers to ensure that the coating is tightly combined with the substrate and internal phases, thereby improving the adhesion of the coating and the substrate. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the application to achieve the predetermined application purposes, the specific embodiments, structures, features and effects according to the application are described in detail below in combination with examples.

[0023] It should be noted that, in the following examples and comparative examples, unless otherwise specified, the source of the raw materials used by the application is not specifically limited, and commercially available products or products prepared by conventional preparation methods known to those skilled in the art can be used, and the experimental methods without specific conditions are conventional methods and conventional conditions known in the art.

[0024] The curing agent used is polyamide 651 curing agent; titanium carbide is purchased from Shanghai Xiaohua Nanometer Technology Co., Ltd., and the article number is XH-TiC-50; trimethylolpropane triacrylate is purchased from Suzhou Sunsmart Chemical Co., Ltd., and the article number is 3348; photoinitiator 1173 is purchased from Nanjing Bemoford Biological Technology Co., Ltd.; mercaptopropyl trimethoxysilane is purchased from Shanghai Aldrin Biochemical Technology Co., Ltd., and the product number is M100619; bisphenol A type epoxy resin is marked as E51; phenolic epoxy resin is F51 type; amino silicone oil is purchased from Wuhan Jiyesheng Chemical Co., Ltd., and the article number is A00677.

[0025] Example 1 Preparation of modified epoxy resin: According to weight parts, 70 parts of bisphenol A type epoxy resin and 16 parts of amino silicone oil are mixed and heated to 93℃ under nitrogen protection, 0.5 parts of triphenylphosphine is added, and stirring is performed for 3h to obtain a mixture A. At 58℃, 25 parts of phenolic epoxy resin and solvent are added to the mixture A, and stirring is performed at a speed of 450r / min for 1.5h to obtain the modified epoxy resin.

[0026] Preparation of fillers: S1, the amount ratio of 1 g:20 mL of titanium carbide and 1 mol / L hydrochloric acid solution was mixed, ultrasonic treatment was carried out at 60 DEG C with 250 W power for 2 h, then the acid treated solid was dispersed in 30% hydrogen peroxide solution with the amount ratio of 1 g:15 mL, stirred at 75 DEG C for 12 h, the obtained solid was washed with deionized water and anhydrous ethanol to obtain pretreated solid, after drying, the pretreated solid, KH570, ethanol and 0.1 mol / L acetic acid aqueous solution were mixed with the amount ratio of 10 g:1 mL:200 mL:3 mL, stirred for 7 h to obtain KH570 pretreated titanium carbide; The KH570 pretreated titanium carbide was dispersed in isopropanol solution containing 2.5% trimethylolpropane triacrylate and 0.7% photoinitiator 1173 to obtain a dispersion liquid with 4% titanium carbide mass fraction, ultrasonic treatment was carried out for 1 h, the dispersion liquid was irradiated with 365 nm ultraviolet light for 30~60 min under nitrogen protection, after centrifugal separation, the solid was washed with isopropanol, and vacuum drying was carried out to obtain solid A; S2, solid A, fumed silica and isopropanol / water (95 / 5, v / v) solvent were mixed with the amount ratio of 1 g:0.8 g:10 mL, ultrasonic treatment was carried out for 1 h to obtain a suspension;mercapto propyl trimethoxysilane and photoinitiator 1173 were added to the suspension, stirring was carried out at 400 r / min for 30 min to obtain mixture B, then 365 nm ultraviolet light was irradiated for 60 min, filtration, ethanol washing, and vacuum drying at 80 DEG C for 18 h were carried out to obtain the filler, the mass ratio of mercapto propyl trimethoxysilane, photoinitiator 1173 and solid A was 4.5:0.25:1.

[0027] 60 parts of modified epoxy resin and 8 parts of n-butyl glycidyl ether were mixed at a stirring speed of 600 r / min for 25 min, then 15 parts of filler, 1 part of wetting dispersant BYK-190 and 0.4 parts of BYK-033 were added, and stirring was continued for 60 min to obtain component A; First, 1.5 parts of coupling agent and 8 parts of mica powder were mixed, then 32 parts of curing agent were added, and stirring and mixing were carried out to obtain component B, which was then added to component A, and stirring was carried out at a stirring speed of 600 r / min for 50 min to obtain high-strength resin coating.

[0028] Example 2 Preparation of modified epoxy resin: 60 parts of bisphenol A type epoxy resin and 10 parts of amino silicone oil were mixed and heated to 90 DEG C under nitrogen protection, 0.3 parts of triphenylphosphine was added, and stirring was carried out for 2 h to obtain mixture A; 20 parts of phenolic epoxy resin and solvent were added to mixture A at 5 DEG C, and stirring was carried out at a stirring speed of 450 r / min for 1 h to obtain the modified epoxy resin.

[0029] Preparation of the filler: S1, titanium carbide with a dosage ratio of 1 g:20 mL was mixed with 1 mol / L hydrochloric acid solution, ultrasonic treatment was carried out at 60℃ with a power of 250 W for 2 h, and then the acid-treated solid was re-dispersed in a 30% mass fraction hydrogen peroxide solution with a dosage ratio of 1 g:15 mL, stirring at 70℃ for 8 h, the obtained solid was washed with deionized water and anhydrous ethanol to obtain a pretreated solid, which was dried, and then the pretreated solid, KH570, ethanol and 0.1 mol / L acetic acid aqueous solution were mixed with a dosage ratio of 10 g:1 mL:200 mL:3 mL, and stirred for 6 h to obtain KH570 pretreated titanium carbide; The KH570 pretreated titanium carbide was dispersed in an isopropanol solution containing 2% trimethylolpropane triacrylate and 0.5% photoinitiator 1173 to obtain a dispersion liquid with a titanium carbide mass fraction of 3%, ultrasonic treatment was carried out for 1 h, the dispersion liquid was irradiated with 365 nm ultraviolet light for 30 min under nitrogen protection, and the solid was washed with isopropanol after centrifugal separation, and vacuum drying was carried out to obtain solid A; S2, solid A, fumed silica and isopropanol / water (95 / 5, v / v) solvent were mixed with a dosage ratio of 1 g:0.5 g:10 mL, ultrasonic treatment was carried out for 1 h to obtain a suspension; to the suspension, mercaptopropyltrimethoxysilane and photoinitiator 1173 were added, stirring was carried out at a speed of 400 r / min for 30 min to obtain a mixture B, and then irradiation was carried out under 365 nm ultraviolet light for 60 min, filtration, ethanol washing and vacuum drying at 80℃ for 12 h were carried out to obtain the filler, the mass ratio of mercaptopropyltrimethoxysilane, photoinitiator 1173 and solid A was 4:0.2:1.

[0030] 50 parts of modified epoxy resin and 5 parts of n-butyl glycidyl ether were mixed, stirring was carried out at a speed of 600 r / min for 20 min, then 10 parts of the filler, 0.5 parts of wetting dispersant BYK-190 and 0.1 parts of BYK-033 were added, and stirring was continued for 45 min to obtain component A; First, 0.5 parts of a coupling agent and 5 parts of mica powder were mixed, then 25 parts of a curing agent was added, and after stirring and mixing, component B was obtained, which was then added to component A, and stirring was carried out at a speed of 600 r / min for 40 min to obtain a high-strength resin coating.

[0031] Example 3 Preparation of modified epoxy resin: 80 parts of bisphenol A type epoxy resin and 20 parts of amino silicone oil were mixed and heated to 95℃ under nitrogen protection, 0.6 parts of triphenylphosphine was added, and stirring was carried out for 3 h to obtain mixture A; 60℃, 30 parts of phenolic epoxy resin and solvent were added into mixture A, stirred at 450 r / min for 1.5 h to obtain the modified epoxy resin.

[0032] Preparation of the filler: S1, titanium carbide in a ratio of 1 g:20 mL was mixed with 1 mol / L hydrochloric acid solution, ultrasonic treatment was carried out at 60℃ for 2 h with a power of 250 W, and then the acid-treated solid was re-dispersed in a 30% hydrogen peroxide solution in a ratio of 1 g:15 mL, stirred at 80℃ for 15 h, and then the obtained solid was washed with deionized water and anhydrous ethanol to obtain a pretreated solid, which was dried, and then mixed with KH570, ethanol and 0.1 mol / L acetic acid solution in a ratio of 10 g:1 mL:200 mL:3 mL, stirred for 8 h to obtain KH570 pretreated titanium carbide; The KH570 pretreated titanium carbide was dispersed in an isopropanol solution containing 3% trimethylolpropane triacrylate and 0.8% photoinitiator 1173 to obtain a dispersion liquid with a titanium carbide mass fraction of 5%, ultrasonic treatment was carried out for 1 h, and then the dispersion liquid was irradiated with 365 nm ultraviolet light for 60 min under nitrogen protection, and after centrifugal separation, the solid was washed with isopropanol and vacuum dried to obtain solid A; S2, solid A, fumed silica and isopropanol / water (95 / 5, v / v) solvent in a ratio of 1 g:1 g:10 mL were mixed, ultrasonic treatment was carried out for 1 h to obtain a suspension; to the suspension, mercaptopropyltrimethoxysilane and photoinitiator 1173 were added, stirred at a speed of 400 r / min for 30 min to obtain mixture B, and then irradiated with 365 nm ultraviolet light for 60 min, filtered, washed with ethanol, and vacuum dried at 80℃ for 20 h to obtain the filler, the mass ratio of mercaptopropyltrimethoxysilane, photoinitiator 1173 and solid A was 5:0.3:1.

[0033] In weight parts, 70 parts of modified epoxy resin were mixed with 10 parts of n-butyl glycidyl ether, stirred at a speed of 600 r / min for 30 min, then 20 parts of filler, 1.5 parts of wetting dispersant BYK-190 and 0.5 parts of BYK-033 were added, and stirred for 70 min to obtain component A; First, 2 parts of coupling agent and 10 parts of mica powder were mixed, then 40 parts of curing agent were added, stirred and mixed to obtain component B, which was then added to component A, and stirred at a speed of 600 r / min for 60 min to obtain a high-strength resin coating.

[0034] Comparative Example 1 The titanium carbide in the comparative example was not pretreated, which was basically the same as in Example 1.

[0035] Comparative Example 2 The preparation process of the filler in the comparative example 1 is basically consistent with that in the example 1, except that no silica is added in the preparation process of the filler in the comparative example 1.

[0036] Comparative example 3 The preparation process of the filler in the comparative example 3 is basically consistent with that in the example 1, except that the filler in the comparative example 3 is only titanium carbide without any modification.

[0037] Comparative example 4 The preparation process of the filler in the comparative example 4 is basically consistent with that in the example 1, except that no amino silicone oil is added in the modified epoxy resin in the comparative example 4.

[0038] Performance test: 1. Hardness: refer to GB / T 6739-2006; 2. Impact resistance: (positive impact) test method, refer to GB / T 1732-2020; 63.5 / cm 3. Adhesion: refer to GB / T9286-2021 “color paint and varnish cross test”, the coating thickness is 400 μm, the substrate is a steel plate, and the obtained test results are as follows: Group Pencil hardness / H Impact resistance / cm Adhesion / grade Example 1 6 64.5 0 Example 2 6 63.1 0 Example 3 6 63.9 0 Comparative Example 1 5 61.1 1 Comparative Example 2 4 58.3 2 Comparative Example 3 3 52.8 3 Comparative Example 4 5 62.2 1 According to the above data, the prepared coating can play the role of titanium carbide filler and has excellent strength and adhesion.

[0039] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the present application.

Claims

1. A high-strength resin coating containing titanium carbide, characterized in that, The coating is composed of a mixture of component A and component B; Component A comprises the following components by weight: 50-70 parts modified epoxy resin, 5-10 parts diluent, 10-20 parts filler, 0.5-1.5 parts wetting and dispersing agent, and 0.1-0.5 parts defoamer; Component B comprises the following components in parts by weight: 5-10 parts mica powder, 25-40 parts curing agent, and 0.5-2 parts coupling agent KH550; The preparation process of the modified epoxy resin is as follows: By weight, 60-80 parts of epoxy resin A and 10-20 parts of amino silicone oil are mixed under nitrogen protection and heated to 90-95°C. 0.3-0.6 parts of triphenylphosphine are added and stirred for 2-3 hours to obtain mixture A. At 55~60℃, 20~30 parts of epoxy resin B and solvent are added to mixture A, and stirred at 450r / min for 1~1.5h to obtain the modified epoxy resin.

2. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, The preparation process of the filler is as follows: S1. Titanium carbide pretreated with KH570 is dispersed in an isopropanol solution containing 2-3% trimethylolpropane triacrylate and 0.5-0.8% photoinitiator 1173 to obtain a dispersion with a titanium carbide mass fraction of 3-5%. The dispersion is ultrasonically treated for 1 hour, and then irradiated with ultraviolet light for 30-60 minutes under nitrogen protection. After centrifugation, the solid is washed with isopropanol and dried under vacuum to obtain solid A. S2. Mix solid A, fumed silica and solvent, and sonicate for 1 hour to obtain a suspension. Mercaptopropyltrimethoxysilane and photoinitiator 1173 were added to the suspension and stirred at 400 r / min for 30 min to obtain mixture B. The mixture was then irradiated under ultraviolet light for 60 min, filtered, washed with ethanol, and vacuum dried at 80 °C for 12-20 h to obtain the filler.

3. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, The diluent is n-butyl glycidyl ether, benzyl glycidyl ether, or o-tolyl glycidyl ether.

4. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, The epoxy resin A is a bisphenol A type epoxy resin, and the epoxy resin B is a phenolic epoxy resin.

5. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, The wetting and dispersing agent is one or more of BYK-190, BYK-2225 and BYK-2155.

6. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, The defoamer is one of BYK-028 and BYK-033.

7. The high-strength resin coating containing titanium carbide according to claim 1, characterized in that, In step S1, the specific process of KH570 pretreatment of titanium carbide is as follows: Titanium carbide in a ratio of 1g:20mL was mixed with a 1mol / L hydrochloric acid solution and ultrasonically treated at 60℃ with a power of 250W for 2h. The acid-treated solid was then redispersed in a 30% hydrogen peroxide solution in a ratio of 1g:15mL and stirred at 70-80℃ for 8-15h. The resulting solid was washed with deionized water and anhydrous ethanol to obtain a pretreated solid. After drying, the pretreated solid, KH570, ethanol and 0.1mol / L acetic acid aqueous solution were mixed in a ratio of 10g:1mL:200mL:3mL and stirred for 6-8h to obtain KH570 pretreated titanium carbide.

8. The high-strength resin coating containing titanium carbide according to claim 2, characterized in that, In step S2, the mass ratio of mercaptopropyltrimethoxysilane, photoinitiator 1173 and solid A is (4~5):(0.2~0.3):

1.

9. The high-strength resin coating containing titanium carbide according to claim 2, characterized in that, In step S2, the ratio of solid A, fumed silica and solvent is 1g:(0.5~1)g:10mL.

10. A preparation process for a high-strength resin coating containing titanium carbide as described in any one of claims 1-9, characterized in that, Includes the following steps: Mix the modified epoxy resin and diluent according to the weight ratio, stir at 600 r / min for 20-30 min, then add filler, wetting and dispersing agent and defoamer, and continue stirring for 45-70 min to obtain component A; First, mix the coupling agent and mica powder, then add the curing agent and stir to obtain component B. Then add it to component A and stir at 600 r / min for 40 to 60 minutes to obtain a high-strength resin coating.