Self-healing radiation-resistant coating material, and radiation-resistant coating and preparation method therefor

Abstract

Provided in the present invention are a self-healing radiation-resistant coating material, and a radiation-resistant coating and a preparation method therefor. The self-healing radiation-resistant coating material comprises a component A and a component B at a mass ratio of 1:(0.5-1.5), wherein the component A comprises 8-40 parts of amino polysiloxane, 8-40 parts of a filler, and 0-5 parts of a wetting and dispersing agent; and the component B is a modified epoxy resin. The amino polysiloxane comprises an ammonium salt modification at the side chains, and the modified epoxy resin is a calixarene-modified resin. In the present application, an organosilicon resin having a good radiation resistance effect and an epoxy resin are used as film-forming substances. By synthesizing a polysiloxane having an ammonium salt at the side chains and an epoxy resin modified by calixarene, the compatibility between the two kinds of resin are improved by means of the host-guest interaction between the calixarene and the ammonium salt, and the self-healing of the radiation-resistant coating material is also achieved. The host-guest interaction does not require external heating or pH conditions, etc., and the effect thereof is not affected by a humid environment.

Description

Self-repairing anti-radiation coating paint, anti-radiation coating and preparation method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of coating protection, in particular to a self-repairing anti-radiation coating paint, anti-radiation coating and preparation method thereof. BACKGROUND

[0002] Nuclear power is an environmentally friendly and efficient new energy, however, with the increase of nuclear power plant construction projects, people's attention to the safety of nuclear power is also increasing. The high energy of radiation can easily break chemical bonds, thereby accelerating the aging of materials and reducing the normal service life of equipment. Therefore, coatings with radiation resistance performance are needed to be used in nuclear power plants. As an important protective layer on the equipment of nuclear power plants, radiation-resistant coatings can improve the service life of equipment and improve the safety of nuclear power. Silicone resin is a polysiloxane system with Si-O-Si as the main chain and organic groups connected to silicon atoms. The high bond energy of the silicon resin main chain siloxane bond gives it excellent heat resistance, radiation resistance and weather resistance. The presence of benzene rings in the epoxy resin main chain also makes it have radiation resistance and become a commonly used resin in radiation-resistant coatings. However, radiation-resistant coatings are inevitably susceptible to mechanical damage from the outside environment during use, shortening the service life and increasing the cost of material repair and replacement.

[0003] Self-repairing coating refers to a functional coating that has self-repairing ability after damage or has self-repairing ability under certain external environment. Self-repairing coating can be mainly divided into two categories: one is external aid type self-repairing, and the other is intrinsic type self-repairing; intrinsic type self-repairing realizes multiple repairs by using reversible chemical bonds, overcoming the shortcomings of external aid type self-repairing, but most reversible chemical reactions require input of energy (heat, light) or pH change, limiting the application of materials. Among the few truly active self-repairing polymer materials, most are based on water-sensitive hydrogen bonds.

[0004] CN201811478430.9 discloses an anti-radiation building coating and a preparation method thereof. The anti-radiation building coating comprises component A and component B in a mass ratio of 1:1.5, and an additive accounting for 1%-2% of the total mass of component A and component B. Component A comprises, in mass parts, epoxy resin 30 parts, organic silicon resin 5-10 parts, catalyst 0.1 part, dispersant 10-15 parts. Component B comprises, in mass parts, aldehyde ketone resin 10-15 parts, anti-radiation agent 2-5 parts, graphene 0.5-1.5 parts, and pigment and filler 3-5 parts. The coating can significantly improve the anti-radiation performance of the coating itself, improve the crack resistance of the coating after being coated on the surface of a building, and is not prone to cracking and falling off. The coating itself has a self-healing and repairing function, and can quickly heal even if cracking occurs to prevent further cracking, thereby ensuring the overall anti-radiation performance of the coating. The repair method adopted is external aid self-repairing, and the self-repairing method of the self-healing and repairing ball. The self-repairing of this method is one-time self-repairing, which is irreversible and unsustainable.

[0005] CN201710330204.5 discloses a calixarene type photocurable polyurethane resin and a self-repairing coating prepared therefrom. The calixarene type photocurable polyurethane resin is prepared by the following steps: (1) preparing an isocyanate group terminated prepolymer; (2) preparing an isocyanate group semi-terminated prepolymer; and (3) introducing a calixarene monomer into the isocyanate group semi-terminated prepolymer prepared in step (2) to obtain the calixarene type photocurable polyurethane. The present application grafts light-curable coumarin, double bond and other groups onto calixarene to prepare a calixarene type photocurable self-repairing polyurethane resin, which has good self-repairing performance and greatly improves the hardness of self-repairing. SUMMARY

[0006] In view of the problems of high repair and replacement cost of the existing anti-radiation coating, and the fact that ordinary self-repairing coating often needs external conditions or is sensitive to water to affect the self-repairing effect, the present application provides a self-repairing anti-radiation coating, an anti-radiation coating and a preparation method thereof. The coating comprises amino polysiloxane with side chain modified by ammonium salt and calixarene modified epoxy resin. The calixarene supramolecular system with benzene ring structure is adopted. The high bond energy of the benzene ring structure makes it stable under radiation. At the same time, the host-guest interaction between calixarene and ammonium salt can realize self-repairing without external conditions.

[0007] A self-repairing anti-radiation coating, which comprises component A and component B in a mass ratio of 1:(0.5-1.5). Component A comprises 8-40 parts of amino polysiloxane, 8-40 parts of filler, and 0-5 parts of wetting dispersant. Component B is modified epoxy resin.

[0008] The above-mentioned amino polysiloxane is obtained by reacting silane coupling agent and amino silane under the action of a catalyst.

[0009] The silane coupling agent is used in an amount of 10-30 parts, the amino silane is used in an amount of 2-10 parts, and the catalyst is used in an amount of 0.1-1 part.

[0010] The modified epoxy resin is obtained by reacting a calixarene with an epoxy resin.

[0011] The calixarene is used in an amount of 2-15 parts, and the epoxy resin is used in an amount of 5-30 parts. The epoxy resin is a multifunctional epoxy resin.

[0012] The calixarene and the amino group in the amino polysiloxane are used in a ratio of (1-1.2):1.

[0013] The silane coupling agent is any one or a mixture of two or more in any ratio of octamethylcyclotetrasiloxane (D4), methyltrimethoxysilane (MTMS), methyltriethoxysilane, phenyltrimethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, dimethyldichlorosilane, dimethyldimethoxysilane, and dimethyldiethoxysilane.

[0014] The amino silane is any one or a mixture of two or more in any ratio of γ-aminopropyltriethoxysilane, γ-aminopropyltrimethoxysilane, N-β(aminoethyl)-γ-propyltrimethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltriethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldiethoxysilane, and aminoethylaminopropyltrimethoxysilane.

[0015] The catalyst is any one of potassium hydroxide, sodium hydroxide, ammonia, sodium ethoxide, and sodium methoxide.

[0016] The filler is any one or a mixture of two or more in any ratio of rutile titanium dioxide, quartz powder, talc powder, and calcium carbonate.

[0017] The calixarene is any one or a mixture of two or more in any ratio of calix[4]arene, 4-sulfonyl calix[4]arene, and 4-tert-butyl calix[4]arene; and the epoxy resin is a multifunctional epoxy resin.

[0018] The modified epoxy resin further comprises a diluent, and the diluent is any one or a mixture of two or more in any ratio of isopropyl alcohol, n-butanol, propylene glycol methyl ether, and xylene; the diluent is used in an amount of 5-20 parts, and without the diluent, the coating viscosity is too high, which is not conducive to construction and film formation.

[0019] The reaction temperature of the above-mentioned amino polysiloxane preparation process is 120-150°C, and the reaction time is 5-10h; the reaction temperature of the above-mentioned modified epoxy resin preparation process is 100-150°C, and the reaction time is 4-6h, and the modified epoxy resin preparation process can be catalyzed by an organic base or without adding.

[0020] The component A synthesis step specifically comprises: adding one or more silane coupling agents 10-30 parts, amino silane 2-10 parts and a catalyst 0.1-1 part in a four-necked flask with nitrogen, uniformly mixing, stirring and heating to the required reaction temperature (120-150°C) in a constant temperature oil bath, reacting for 5-10h, and then neutralizing with an acid to obtain an amino polysiloxane with side chains modified as ammonium salt. Then, fillers 8-40 parts and wetting dispersants 0-5 parts are added and uniformly mixed.

[0021] The component B synthesis step specifically comprises: adding a compound containing phenolic hydroxyl groups, calixarene 2-15 parts, to epoxy resin 5-30 parts, and stirring and reacting for more than 4-5h to obtain a modified epoxy resin; or first adding a compound containing phenolic hydroxyl groups, calixarene 2-15 parts, to epoxy resin 5-30 parts, and then adding a diluent 5-20 parts, and stirring and reacting for more than 4-5h to obtain a modified epoxy resin.

[0022] The above-mentioned self-repairing anti-radiation coating is obtained by using the above-mentioned self-repairing anti-radiation coating paint, and the preparation method of the coating comprises the following steps: after the preparation of component A and component B, the self-repairing anti-radiation coating paint is obtained by fully mixing and stirring for 25-35min; the above-mentioned self-repairing anti-radiation coating paint is brushed on the surface of the protective material, and is cured at room temperature for 7-8d to obtain the above-mentioned anti-radiation coating.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] (1) The present application uses silicone resin and epoxy resin with excellent radiation resistance as film-forming materials, and through the synthesis of polysiloxane with side chain ammonium salt and calixarene modified epoxy resin, the compatibility of the two resins is improved by the host-guest interaction between calixarene and ammonium salt, and the self-repairing of the radiation resistant coating is realized; this host-guest interaction does not require additional heat or pH conditions, and the effect will not be affected in a humid environment.

[0025] (2) The filler used is rutile titanium dioxide with radiation resistance, which enhances the radiation resistance, increases the hardness and hiding power of the coating, and the dispersant enhances the dispersing ability of the filler.

[0026] (3) The self-repairing effect of the coating is realized through the host-guest interaction between the amino polysiloxane and the modified epoxy resin, and the polysiloxane itself has a high bond energy, and both the polysiloxane and the radiation resistant filler rutile titanium dioxide have radiation resistance, achieving the effect of combined radiation resistance. The components cooperate with each other, greatly improving the self-repairing performance while ensuring good radiation resistance. Attached Figure Description

[0027] Figure 1 shows the effects of irradiation on the samples of each embodiment and comparative example;

[0028] Figure 2 shows the effect of scratches on the samples of each embodiment and comparative example after 24 hours. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] In the following examples and comparative examples, unless otherwise specified, the reaction conditions were all performed at room temperature. In all examples and comparative examples, the coatings were dried and cured for 24 hours after application to obtain the final coating.

[0031] Example 1

[0032] The synthesis steps of component A are as follows: In a four-necked flask purged with nitrogen, 20 parts of octamethylcyclotetrasiloxane D4, 5 parts of methyltriethoxysilane, 10 parts of γ-aminopropyltrimethoxysilane, and 0.1 parts of KOH were added sequentially. After thorough mixing, the mixture was stirred and heated to 140 degrees Celsius in a constant-temperature oil bath for 8 hours. The reaction was then neutralized with acetic acid to stop the reaction. Subsequently, 15 parts of rutile titanium dioxide, 5 parts of talc, and 2 parts of wetting and dispersing agent were added.

[0033] The synthesis process of component B is as follows: 7 parts of 4-tert-butylcalix[4] aromatic hydrocarbons were added to 15 parts of epoxy resin and 7 parts of propylene glycol methyl ether, and the mixture was stirred at 110°C for 6 hours to obtain modified epoxy resin.

[0034] Mix component A and component B in a 2:1 ratio, stir thoroughly for 30 minutes, and then apply. Example 2

[0035] The synthesis steps of component A are as follows: In a four-necked flask purged with nitrogen, 15 parts of D4, 5 parts of methyltrimethoxysilane (MTMS), 5 parts of γ-aminopropyltrimethoxysilane, and 0.1 parts of KOH were added sequentially. After thorough mixing, the mixture was stirred and heated to 130 degrees Celsius in a constant-temperature oil bath for 6 hours. The reaction was then neutralized with acetic acid to stop the reaction. Subsequently, 16 parts of rutile titanium dioxide, 4 parts of talc, and 2 parts of wetting and dispersing agent were added.

[0036] The synthesis process of component B is as follows: 3 parts of calix[4] aromatic hydrocarbons are added to 10 parts of epoxy resin and 5 parts of propylene glycol methyl ether, and the mixture is stirred at 150°C for more than 4 hours to obtain modified epoxy resin.

[0037] Component A was mixed with Component B at 1 : 1.2, and after thorough stirring for 30 min, it was applied by brushing. Example 3

[0038] The synthesis of Component A was as follows: D4 15 parts, MTMS 3 parts, γ- aminopropyl methyl dimethoxysilane 5 parts and KOH 0.2 parts were added in sequence into a four-necked flask with nitrogen, and after mixing uniformly, they were heated to 140 degrees in a constant-temperature oil bath with stirring for 5 h, and then neutralized with acetic acid to stop the reaction. Subsequently, calcium carbonate 10 parts, rutile titanium dioxide 10 parts and wetting dispersant 2 parts were added.

[0039] The synthesis of Component B was as follows: 7 parts of calix[4]arene were added to 20 parts of epoxy resin, 5 parts of propylene glycol methyl ether, and the mixture was stirred at 100°C for 6 h to obtain a modified epoxy resin.

[0040] Component A was mixed with Component B at 1 : 1, and after thorough stirring for 30 min, it was applied by brushing. Example 4

[0041] The synthesis of Component A was as follows: D4 15 parts, MTMS 3 parts, γ- aminopropyl methyl dimethoxysilane 5 parts and KOH 0.2 parts were added in sequence into a four-necked flask with nitrogen, and after mixing uniformly, they were heated to 140 degrees in a constant-temperature oil bath with stirring for 5 h, and then neutralized with acetic acid to stop the reaction. Subsequently, calcium carbonate 10 parts, rutile titanium dioxide 10 parts and wetting dispersant 2 parts were added.

[0042] The synthesis of Component B was as follows: 5 parts of calix[5]arene were added to 30 parts of epoxy resin, 10 parts of propylene glycol methyl ether, 10 parts of dimethylbenzene, and the mixture was stirred at 140°C for 4 h to obtain a modified epoxy resin.

[0043] Component A was mixed with Component B at 1 : 1.5, and after thorough stirring for 30 min, it was applied by brushing. Example 5

[0044] The synthesis of Component A was as follows: D4 15 parts, MTMS 3 parts, γ- aminopropyl methyl dimethoxysilane 5 parts and KOH 0.2 parts were added in sequence into a four-necked flask with nitrogen, and after mixing uniformly, they were heated to 140 degrees in a constant-temperature oil bath with stirring for 5 h, and then neutralized with acetic acid to stop the reaction. Subsequently, calcium carbonate 10 parts, rutile titanium dioxide 10 parts and wetting dispersant 2 parts were added.

[0045] The synthesis of Component B was as follows: 2 parts of calix[5]arene were added to 10 parts of epoxy resin, 5 parts of dimethylbenzene, and the mixture was stirred at 140°C for 4 h to obtain a modified epoxy resin.

[0046] Mix component A with component B at 1 : 1.5, stir well for 30 min, then apply. Example 6

[0047] The component A synthesis procedure is as follows: add D4 15 parts, MTMS 3 parts, γ-aminopropyl methyl dimethoxy silane 5 parts, and KOH 0.2 parts in sequence into a four-necked flask with nitrogen flowing, mix well, then stir and heat to 140 degrees in a constant temperature oil bath for 5 h, then neutralize with acetic acid to stop the reaction. Then add rutile titanium dioxide 10 parts, wetting dispersant 2 parts.

[0048] The component B synthesis procedure is as follows: add 15 parts of calix[5]arene to 30 parts of epoxy resin, 20 parts of xylene, stir and react at 140°C for 4 h to obtain a modified epoxy resin.

[0049] Mix component A with component B at 1 : 0.5, stir well for 30 min, then apply. Comparative Example 1

[0050] Comparative Example 1 differs from Example 1 in that the epoxy resin in component B is not modified with calixarene.

[0051] The component A synthesis procedure is as follows: add D4 20 parts, methyl triethoxysilane 5 parts, γ-aminopropyl trimethoxy silane 10 parts, and KOH 0.1 parts in sequence into a four-necked flask with nitrogen flowing, mix well, then stir and heat to 140 degrees in a constant temperature oil bath for 8 h, then neutralize with acetic acid to stop the reaction. Then add rutile titanium dioxide 15 parts, talc 5 parts, and wetting dispersant 2 parts.

[0052] The component B synthesis procedure is as follows: add 7 parts of 4-tert-butyl calix[4]arene to 15 parts of epoxy resin, 7 parts of propylene glycol methyl ether, stir and react at 140°C for 7 h to obtain a modified epoxy resin.

[0053] Mix component A with component B at 2: 1, stir well for 30 min, then apply. Comparative Example 2

[0054] Comparative Example 2 differs from Example 1 in that the polysiloxane in component A does not contain a side chain ammonium salt (a siloxane without an ammonium salt in the side chain cannot cure the epoxy resin, only the siloxane itself can be cured).

[0055] The polysiloxane synthesis procedure is as follows: add D4 20 parts, methyl triethoxysilane 5 parts, and KOH 0.1 parts in sequence into a four-necked flask with nitrogen flowing, mix well, then stir and heat to 140 degrees in a constant temperature oil bath for 8 h, then neutralize with acetic acid to stop the reaction. Then add rutile titanium dioxide 15 parts, talc 5 parts, and wetting dispersant 2 parts. Dry and cure.

[0056] Test Example 1: Performance Test

[0057] The plates were prepared according to the standard requirements, the concrete block size was 20 cm x 10 cm x 4 cm, the surface was treated by degreasing and dust removal, then the bottom was sealed with epoxy putty, the surface of the concrete block was repaired; after 24 h, the paint prepared in the examples and comparative examples was sprayed (dry film thickness was 90-120 μm), and the coating appearance was observed and recorded after curing at room temperature for 14 days; the coating was scratched with a knife to form a scratch about 1-2 mm wide, and the coating appearance was recorded after standing at room temperature for 24 h. The water resistance of the coating was tested according to GB / T 1733-1993, other liquids were tested by spraying method, the salt mist resistance was tested according to GB / T 10125-2012, the damp heat resistance was tested according to GB / T 1740-2007, the impact resistance was tested according to GB / T 1732-2020, and the radiation resistance was tested according to NB / T 20133.3-2012.

[0058] The test results are shown in Table 1 below:

[0059] Table 1:

[0060] Test Items Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Coating Appearance Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Smooth and even without sagging Initial Drying Crack Resistance No cracks No cracks No cracks No cracks No cracks No cracks No cracks No cracks No cracks No cracks No cracks Impact Resistance / 50 Normal paint film (cm) Normal paint film (cm) Normal paint film (cm) Normal paint film (cm) Normal paint film (cm) Normal paint film (cm) Normal paint film (cm) Normal water resistance (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal paint film (30d) Normal caustic soda (30% NaOH) resistance (7d) Normal paint film (7d) Normal paint film (7d) Normal paint film (7d) Normal paint film (7d) Normal paint film (7d) Normal paint film (7d) Normal sulfide (10% H2SO4) resistance (7d) Normal paint film (7d) Normal paint film (7d) Normal paint film (7d) Normal sulfide (1% H2SO4) resistance ... H2O2) 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal paint film 7d normal 1000h damp heat resistance 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal paint film 1000h normal neutral salt spray resistance 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal paint film 800h normal radiation dose 3MGy paint film intact without cracking or blistering, but with bubbles 3MGy paint film intact without cracking or blistering, but with bubbles 3MGy paint film intact without cracks or bubbles, with slight discoloration. (This is repeated 6 times in the original text.) Scratch repair: Scratch automatically repairs itself; no scratches after 24 hours. (This is repeated 6 times in the original text.) Scratch not repaired; still clear after 24 hours.

[0061] According to the test results in the above table, each embodiment of the present application has good radiation resistance and scratch self-repairing function, as shown in FIG. 1 and FIG. 2. The samples of each embodiment and the comparative example do not show obvious cracking after irradiation, which is due to the high bond energy of polysiloxane, and the good radiation resistance of the epoxy resin. At the same time, the addition of the epoxy resin provides some toughness for the polysiloxane, so that the film is less likely to crack. In the coating layer having the amino and calixarene modification structure (Examples 1-6), the scratch is self-repaired by the host-guest interaction of the two after 24 hours, and the scratch is not visible.

[0062] However, in the comparative examples 1 and 2 without the amino and calixarene modification structure, there is no host-guest interaction, and the scratch is irreversible, and still exists after 24 hours.

[0063] The embodiments of the present application use the supramolecular interaction of calixarene and amino to not only realize the self-repairing of the coating layer, but also do not have obvious influence on the water resistance, acid and alkali resistance, salt spray resistance and other properties of the organic silicon-epoxy composite coating layer, avoiding the water sensitivity and acid and alkali sensitivity of the hydrogen bonding, metal ion chelation and other self-repairing methods, and being more conducive to the durability of the coating layer.

[0064] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-healing radiation shielding coating paint, characterized by: The self-repairing anti-radiation coating paint comprises components A and B in a mass ratio of 1:(0.5-1.5), component A comprises 8-40 parts of amino polysiloxane, 8-40 parts of filler, and 0-5 parts of wetting dispersant, and component B is modified epoxy resin; The amino polysiloxane is obtained by reacting silane coupling agent with amino silane under the condition of a catalyst; The silane coupling agent is used in an amount of 10-30 parts, the amino silane is used in an amount of 2-10 parts, and the catalyst is used in an amount of 0.1-1 part; The modified epoxy resin is obtained by reacting calixarene with epoxy resin; The calixarene is used in an amount of 2-15 parts, and the epoxy resin is used in an amount of 5-30 parts.

2. The self-healing radiation curable coating of claim 1, wherein: The silane coupling agent is any one or a mixture of two or more in any ratio of octamethylcyclotetrasiloxane, methyltrimethoxysilane, methyltriethoxysilane, phenyltrimethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, dimethyldichlorosilane, dimethyldimethoxysilane, and dimethyldiethoxysilane.

3. The self-healing radiation curable coating of claim 1, wherein: The amino silane is any one or a mixture of two or more in any ratio of γ-aminopropyltriethoxysilane, γ-aminopropyltrimethoxysilane, N-β(aminoethyl)-γ-propyltrimethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltriethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldiethoxysilane, and aminoethylaminopropyltrimethoxysilane.

4. The self-healing radiation curable coating of claim 1, wherein: The catalyst is any one of potassium hydroxide, sodium hydroxide, ammonia, sodium ethoxide, and sodium methoxide.

5. The self-healing radiation curable coating of claim 1, wherein: The filler is any one or a mixture of two or more in any ratio of rutile titanium dioxide, quartz powder, talc powder, and calcium carbonate.

6. The self-healing radiation curable coating of claim 1, wherein: The calixarene is any one or a mixture of two or more in any ratio of calix[4]arene, 4-sulfonyl calix[4]arene, and 4-tert-butyl calix[4]arene; and the epoxy resin is multifunctional epoxy resin.

7. The self-healing radiation curable coating of claim 1, wherein: The modified epoxy resin further comprises a diluent, which is any one or a mixture of two or more in any ratio of isopropyl alcohol, n-butanol, propylene glycol methyl ether, and xylene; and the diluent is used in an amount of 5-20 parts.

8. The self-healing radiation curable coating of claim 1, wherein: The reaction temperature of the amino polysiloxane preparation process is 120-150°C, and the reaction time is 5-10h; and the reaction temperature of the modified epoxy resin preparation process is 100-150°C, and the reaction time is 4-6h.

9. An anti-radiation coating, characterized by: The raw material of the anti-radiation coating comprises the self-repairing anti-radiation coating paint according to any one of claims 1-8.

10. A method of preparing an anti-radiation coating according to claim 9, characterized in that, The method comprises the following steps: After components A and B are prepared, they are mixed and stirred for 25-35min to obtain the self-repairing anti-radiation coating paint; The self-repairing anti-radiation coating paint is applied to the surface of a protective material, and is cured at room temperature for 7-8d to obtain the anti-radiation coating.

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