Spraying material based on crystal phase transition cooling and preparation method thereof

Abstract

The application provides a spraying material based on crystal phase change cooling and a preparation method thereof, and comprises the following components in mass fractions: core-shell structure particles 10-15 parts, reinforcing agent 1-3 parts, rheological modifier 1 part and sulphoaluminate clinker 100 parts; wherein the core-shell structure particles have the crystal phase change cooling function. The spraying material provided by the application combines the phase change material microcapsules with suitable phase change temperatures and encapsulation stability with the functional coating system for mines, forms an intelligent coating which is firmly attached, has the fire-retardant and antistatic properties and has the sustained heat regulating capacity, and improves the toughness of the spraying material. The preparation method of the spraying material has the characteristics of simple process, low cost and easy popularization and application.

Description

Technical Field

[0001] This application relates to the field of new spray coating material preparation technology, and in particular to a spray coating material based on crystal phase transition cooling and its preparation method. Background Technology

[0002] With the increasing depth of coal mining in my country, the problem of high-temperature heat hazards underground is becoming increasingly severe, seriously threatening the health, safety, production efficiency, and equipment reliability of workers. Traditional ventilation and cooling methods are energy-intensive and have limited effectiveness in deep mines, necessitating the development of efficient, energy-saving, and easy-to-implement active cooling technologies. Spray coatings, as a technology that can be directly applied to the surface of surrounding rock in roadways, offer advantages such as convenient construction and comprehensive coverage. However, existing heat-insulating spray coatings mostly passively block heat transfer, offering limited cooling effects on continuously radiating surrounding rock and failing to cope with periodic heat load fluctuations.

[0003] Therefore, the market urgently needs a smart spraying material with "active heat absorption" function, which can absorb and store the heat emitted by the surrounding rock in real time through the physical phase change of the internal material, thereby actively reducing the temperature of the surrounding rock surface and the adjacent air, and realizing the transformation from "isolation" to "treatment". Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in related technologies. This application proposes a spraying material based on crystal phase change cooling and its preparation method. The preparation method is characterized by its simple process, low cost, and ease of promotion and application. The spraying material provided by this application combines microcapsules of phase change materials with suitable phase change temperatures (e.g., 30-40℃) and stable encapsulation with a functional coating system for mining. Through a matched preparation method and construction process, a smart coating with strong adhesion, flame retardancy, antistatic properties, and continuous thermal regulation capability is formed. This has significant engineering practical value and urgency for achieving efficient and economical management of coal mine heat hazards.

[0005] According to an embodiment of the first aspect of this application, a spraying material based on crystal phase change cooling is proposed, comprising the following components in parts by mass: 10-15 parts of core-shell structured particles, 1-3 parts of reinforcing agent, 1 part of rheology modifier, and 100 parts of sulfoaluminate clinker; wherein the core-shell structured particles have a crystal phase change cooling function.

[0006] In some embodiments, the core-shell structured particles are added to the phase-edge crystal material using a nucleating agent, a promoter, a dispersant, an emulsifier, and an interface stabilizer, and stirred to dissolve to obtain a solution; then the solution is dropped into water to obtain an emulsion, which is then dried.

[0007] In some embodiments, the phase-edge crystal material comprises 100 parts by weight, nucleating agent 1-5 parts, accelerator 1 part, dispersant 1-3 parts, emulsifier 1-2 parts, and interface stabilizer 1 part.

[0008] In some embodiments, the solution is suspended dropwise into water at 20-25°C under stirring and ultrasonic treatment.

[0009] In some embodiments, the phase-edge crystal material comprises tetradecyl acetate, 3,6-dimethyl-1,4-dioxane-2,5-dione, n-heptadecyl acetate, and n-eicosane in a mass ratio of 1:1:3:6.

[0010] In some embodiments, the nucleating agent comprises thulium oxide and titanium suboxide in a mass ratio of 1:3.

[0011] In some embodiments, the accelerator is 4-nitrobenzenethiophenol; And / or, the dispersant is sodium 5-amino-2-naphthalenesulfonate; And / or, the emulsifier is potassium lauryl sulfate; And / or, the interface stabilizer is diethyl phenylmalonate.

[0012] In some embodiments, the reinforcing agent is molybdenum carbide and molybdenum glycinate of equal mass.

[0013] In some embodiments, the rheology modifier is methyl 3-ureidofuran-2-carboxylic acid.

[0014] According to an embodiment of the second aspect of this application, a method for preparing a spraying material based on crystal phase transition cooling is proposed, comprising the following steps: Preparation of core-shell structured particles; The core-shell structured particles, reinforcing agent, rheology modifier, and sulfoaluminate clinker are dry-mixed at 20-25°C for 20-30 minutes according to stoichiometry to obtain the spraying material described in any of the above embodiments.

[0015] This application utilizes core-shell structured particles with crystal phase transition cooling function as a nano / micro-scale filler, uniformly dispersed in sulfoaluminate clinker. This effectively fills pores and optimizes the pore structure, thereby improving the material's density and mechanical strength, acting as a physical reinforcement similar to micro-aggregates. Furthermore, the difference in Young's modulus between the core-shell structured particles and the sulfoaluminate clinker matrix causes the nanoparticles to deflect propagating cracks in the matrix, extending the crack propagation path and improving the toughness of the sprayed material. In addition, the core-shell structured particles, by incorporating hydrophilic groups on the shell surface, enhance the chemical bonding and physical adsorption force between the core-shell structured particles and the hydration products of the sulfoaluminate clinker.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart of a method for preparing a spray coating material according to one embodiment of this application. Detailed Implementation

[0018] Embodiments of this application are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Rather, this application includes all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0019] The "range" disclosed in this application is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a specific parameter, it is expected that ranges of 60-110 and 80-120 are also included. Furthermore, if minimum range values ​​of 1 and 2 are listed, and if maximum range values ​​of 3, 4, and 5 are listed, then the following ranges are all expected: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise stated, the numerical range "ab" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0-5" indicates that all real numbers between "0-5" have been listed in this article; "0-5" is simply a shortened representation of these numerical combinations. Furthermore, when a parameter is stated as an integer ≥2, it is equivalent to disclosing that the parameter is, for example, an integer such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0020] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0021] To achieve the above objectives, according to an embodiment of the first aspect of this application, a spraying material based on crystal phase change cooling is proposed, comprising the following components in parts by mass: 10-15 parts of core-shell structured particles, 1-3 parts of reinforcing agent, 1 part of rheology modifier, and 100 parts of sulfoaluminate clinker; wherein the core-shell structured particles have crystal phase change cooling function.

[0022] In this embodiment, the spraying material includes 10-15 parts by weight of core-shell structured particles. These particles, by weight, comprise 100 parts of phase-edge crystalline material, 1-5 parts of nucleating agent, 1 part of accelerator, 1-3 parts of dispersant, 1-2 parts of emulsifier, and 1 part of interface stabilizer. The nucleating agent, accelerator, dispersant, emulsifier, and interface stabilizer are added to the phase-edge crystalline material and stirred to dissolve, obtaining a solution. This solution is then dripped into water to form an emulsion, which is subsequently dried to obtain the core-shell structured particles. The core-shell structured particles prepared in this application, possessing a crystal phase transition cooling function, undergo a crystalline-to-amorphous phase transition at a specific temperature (e.g., 30-40℃), absorbing and storing a large amount of latent heat, thereby actively consuming ambient heat. The shell of the core-shell structured particles encapsulates the core material, preventing leakage and enhancing structural stability. When the ambient temperature is below the phase transition point, the core material releases the stored heat and transforms into an amorphous phase, achieving cyclic temperature regulation. This process temporarily stores heat inside the particles, rather than isolating or reflecting it, thereby smoothing out temperature fluctuation peaks and achieving dynamic, adaptive physical cooling.

[0023] In some embodiments, the mass fraction of the core-shell structured particles can be 10, 11, 12, 13, 14, or 15 parts, etc. If the mass fraction of the core-shell structured particles is small, such as less than 10 parts, the cooling effect will be poor. If the mass fraction of the core-shell structured particles is large, such as greater than 15 parts, the mechanical strength of the sprayed material will be insufficient.

[0024] In some embodiments, the core-shell structured particles include 100 parts by mass of a phase-edge crystal material. This phase-edge crystal material comprises tetradecyl acetate, 3,6-dimethyl-1,4-dioxane-2,5-dione, n-heptadecyl acetate, and n-eicosane in a mass ratio of 1:1:3:6. The 3,6-dimethyl-1,4-dioxane-2,5-dione, n-heptadecyl acetate, and n-eicosane are heated and stirred uniformly in a specific ratio to obtain the phase-edge crystal material. The core principle is to utilize the characteristic of a specific substance (the phase-edge crystal material, a substance with a crystallization transformation temperature of 30°C) to absorb a large amount of ambient heat during a reversible solid-liquid phase transition near its phase transition point, thereby achieving active cooling. For example, during the energy storage stage of material preparation, when the ambient temperature is below 30°C, the phase change material in the material exists stably in the form of a solid crystal. During the endothermic stage of utilization, when the temperature rises above 30°C, the phase change material begins to absorb a large amount of heat, undergoing melting (phase transition), transforming from an ordered crystal structure into a disordered liquid state. This solid-liquid conversion process continues at a constant temperature of around 30°C. The heat absorbed during this process (i.e., the latent heat of phase change) is far greater than the sensible heat absorbed by ordinary materials when they heat up. This allows the temperature of the sprayed surface to be "locked" at a level slightly above 30°C for a long time and efficiently, preventing it from rapidly rising to a high temperature. During the heat release phase (cooling down): when the ambient temperature drops below 30°C, the liquid phase change material releases the stored latent heat, recrystallizes and solidifies, returning to its initial state, completing one cycle.

[0025] In some embodiments, if the amount of edge crystal material is small, such as less than 100 parts, the cooling effect is poor. If the amount of edge crystal material is large, such as greater than 100 parts, the toughness of the coating material decreases.

[0026] In some embodiments, the core-shell structured particles include 1-5 parts by mass of nucleating agent. In some embodiments, the nucleating agent includes thulium oxide and titanium suboxide in a mass ratio of 1:3. Its function is to enable the crystalline phase change material to undergo a rapid crystalline-to-amorphous phase transition. In some embodiments, the mass fraction of the nucleating agent is 1, 2, 3, 4, or 5 parts, etc. If the mass fraction of the nucleating agent is small, such as less than 1 part, the phase edge cooling rate is slow. If the mass fraction of the nucleating agent is large, such as greater than 5 parts, it affects the mechanical strength of the sprayed material, resulting in a decrease.

[0027] In some embodiments, the core-shell structured particles include 1 part by mass of a promoter. In some embodiments, the promoter is 4-nitrobenzenethiophenol, which promotes the stable encapsulation of the crystalline phase change material. In some embodiments, if the amount of promoter is small, such as less than 1 part, it promotes the overflow and dispersion of the crystalline phase change material, resulting in poor phase change cooling effect. If the amount of promoter is large, such as greater than 1 part, it promotes a decrease in the proportion of the crystalline phase change material, resulting in poor phase change cooling effect.

[0028] In some embodiments, the core-shell structured particles include 1-3 parts by mass of a dispersant. In some embodiments, the dispersant is sodium 5-amino-2-naphthalenesulfonate, which promotes the uniform dispersion of particles with crystal phase transition function in the matrix. In some embodiments, the mass of the dispersant is 1 part, 2 parts, or 3 parts, etc. If the mass of the dispersant is small, such as less than 1 part, the particles with crystal phase transition function will agglomerate, resulting in poor phase transition cooling effect. If the mass of the dispersant is large, such as greater than 3 parts, the fluidity of the sprayed material will be reduced, and the spraying and dispersion atomization will be uneven.

[0029] In some embodiments, the core-shell structured particles include 1-2 parts by mass of emulsifier. In some embodiments, the emulsifier is potassium lauryl sulfate, which promotes the encapsulation of crystalline phase change material to form particles with crystalline phase change function. In some embodiments, the mass fraction of the emulsifier is 1 or 2 parts, etc. If the mass fraction of the emulsifier is small, such as less than 1 part, the effect of promoting the encapsulation of crystalline phase change material is not good. If the mass fraction of the emulsifier is large, such as greater than 2 parts, the proportion of crystalline phase change material is small, and the cooling effect is not good.

[0030] In some embodiments, the core-shell structured particles include 1 part by mass of an interface stabilizer. In some embodiments, the interface stabilizer is diethyl phthalate, which serves to stabilize the particles with crystal phase transition capabilities. In some embodiments, if the amount of interface stabilizer is small, such as less than 1 part, the particle stability decreases. If the amount of interface stabilizer is large, such as greater than 1 part, the mechanical strength of the sprayed material decreases.

[0031] In some embodiments, stoichiometric amounts of phase-bound crystalline material are taken, and then nucleating agents, promoters, dispersants, emulsifiers, and interface stabilizers are added. The mixture is stirred until homogeneous, and then slowly suspended dropwise into water at 20-25°C under high-speed stirring and ultrasonication to obtain an emulsion. This emulsion is then dried to prepare core-shell structured particles with crystalline phase transition cooling function. The core-shell structured particles with crystalline phase transition cooling function in this application undergo a crystalline-to-amorphous phase transition at a specific temperature (e.g., 30-40°C), absorbing and storing a large amount of latent heat, thereby actively consuming ambient heat. The shell of the core-shell structured particles encapsulates the core material, preventing leakage and enhancing structural stability. When the ambient temperature is below the phase transition point, the core material releases the stored heat and transforms into an amorphous phase, achieving cyclic temperature regulation. This process temporarily stores heat inside the particles, rather than isolating or reflecting it, thereby smoothing temperature fluctuation peaks and achieving dynamic, adaptive physical cooling.

[0032] In some embodiments, the spraying material includes 1-3 parts by weight of reinforcing agent. In some embodiments, the reinforcing agent is molybdenum carbide and molybdenum glycinate of equal weight, i.e., the mass ratio of molybdenum carbide to molybdenum glycinate is 1:1. Its function is to achieve full-cycle reinforcement from room temperature curing to high-temperature service through the synergy of inorganic and organic molybdenum sources. As an organic precursor, molybdenum glycinate can play a role at room temperature after material mixing and spraying. The molybdenum ions it contains can coordinate or catalytically crosslink with other components in the system (such as cement hydration products or functional groups of resin), thereby improving early strength and interfacial adhesion.

[0033] In some embodiments, the emulsifier is present in parts by weight of 1, 2, or 3, etc. If the amount of reinforcing agent is small, such as less than 1 part, the reinforcing effect is poor and the mechanical strength is low. If the amount of reinforcing agent is large, such as more than 3 parts, the toughness of the sprayed material is reduced.

[0034] In some embodiments, the coating material includes 1 part by weight of a rheology modifier. In some embodiments, the rheology modifier is methyl 3-ureidofuran-2-carboxylate, which functions by achieving synergistic regulation of electrostatic repulsion and steric hindrance through its unique amphiphilic molecular structure, thereby significantly reducing the yield stress of the slurry and optimizing its rheological behavior. The urea group in this molecular structure has strong polarity and can strongly adsorb to the hydroxyl groups and water film on the surface of inorganic fillers through hydrogen bonds, forming a strong anchor. At the same time, its furan ring and ester side chains extend outward on the particle surface, forming a strong steric hindrance layer, effectively preventing van der Waals aggregation between particles and the formation of flocculated structures. This effect can efficiently disintegrate the particle network under shearing action (such as pumping and stirring), allowing the slurry to flow under low shear force, exhibiting excellent rheological and pumpability. In some embodiments, if the amount of rheology modifier is small, such as less than 1 part, the rheological properties are poor and the flowability is reduced. If the amount of rheology modifier is large, such as greater than 1 part, the mechanical strength of the coating material is reduced.

[0035] Therefore, this application adds nucleating agents, promoters, dispersants, emulsifiers, and interface stabilizers to phase-edge crystalline materials to prepare core-shell structured particles with crystal phase change cooling function. Then, the prepared core-shell structured particles with crystal phase change cooling function, reinforcing agents, rheology modifiers, and sulfoaluminate clinker are used to prepare a spraying material based on crystal phase change cooling. The spraying material provided by this application combines phase change material microcapsules with suitable phase change temperature and stable encapsulation with a mining functional coating system to form a firmly adhered, flame-retardant, antistatic, and continuously heat-regulating intelligent coating, thereby improving the toughness of the spraying material. This application also proposes a preparation method for the spraying material that is simple in process, low in cost, and easy to promote and apply.

[0036] According to an embodiment of the second aspect of this application, a method for preparing a spraying material based on crystal phase transition cooling is proposed, as follows: Figure 1 This includes the following steps: S1: Preparation of core-shell structured particles; S2: The core-shell structured particles, reinforcing agent, rheology modifier, and sulfoaluminate clinker are dry-mixed at 20-25°C for 20-30 minutes according to stoichiometry to obtain the spraying material in any of the above embodiments.

[0037] Specifically, according to stoichiometry, phase-edge crystal material is taken, and then nucleating agent, accelerator, dispersant, emulsifier, and interface stabilizer are added. The mixture is stirred until homogeneous, and then slowly suspended dropwise into water at 20-25°C under high-speed stirring and ultrasonic treatment to obtain an emulsion. This emulsion is then dried to prepare core-shell structured particles with crystal phase transition cooling function. In step S2, according to stoichiometry, 10-15 parts of core-shell structured particles, 1-3 parts of reinforcing agent, 1 part of rheology modifier, and 100 parts of sulfoaluminate clinker are added to a dry powder mixer. The dry powder is stirred at 20-25°C for 20-30 minutes to promote uniform mixing and obtain the spraying material in any of the above embodiments.

[0038] To facilitate a further understanding of this application, the solutions described below are further described in conjunction with embodiments. Those skilled in the art will understand that the examples described in this application are only a portion of the examples, and any other suitable specific examples are within the scope of this application.

[0039] Example 1 This embodiment provides a spray material based on crystal phase change cooling. The preparation method and specific operating parameters are as follows: 14 kg of phase-edge crystal material, 0.5 kg of nucleating agent, 0.1 kg of accelerator, 0.1 kg of dispersant, 0.2 kg of emulsifier, and 0.1 kg of interface stabilizer are weighed according to the mass weight in kilograms. Under high-speed stirring and ultrasonic action, the mixture is slowly suspended and dripped into water at 20°C to obtain an emulsion. After drying, core-shell structured particles with crystal phase change cooling function are prepared.

[0040] Weigh out 15 kg of core-shell structured particles, 3 kg of reinforcing agent, 1 kg of rheology modifier, and 100 kg of sulfoaluminate clinker according to their mass per kilogram, add them to a dry powder mixer, stir at 20°C for 30 minutes to promote uniform mixing and obtain the spraying material.

[0041] Example 2 This embodiment differs from Embodiment 1 in the following ways: 10 kg of phase-edge crystal material, 0.1 kg of nucleating agent, 0.1 kg of accelerator, 0.3 kg of dispersant, 0.2 kg of emulsifier, and 0.1 kg of interface stabilizer were weighed and slowly suspended in water at 20°C under high-speed stirring and ultrasonication to obtain an emulsion. This emulsion was then dried to prepare core-shell structured particles with crystal phase transition cooling function. 10.8 kg of core-shell structured particles, 3 kg of reinforcing agent, 1 kg of rheology modifier, and 100 kg of sulfoaluminate clinker were weighed.

[0042] Example 3 This embodiment differs from Embodiment 2 in the following ways: 10 kg of phase-edge crystal material, 0.3 kg of nucleating agent, 0.1 kg of accelerator, 0.2 kg of dispersant, 0.1 kg of emulsifier, and 0.1 kg of interface stabilizer are weighed according to their mass (in kilograms).

[0043] Example 4 This embodiment differs from Embodiment 1 in the following ways: 15 kg of core-shell structured particles, 1 kg of reinforcing agent, 1 kg of rheology modifier, and 100 kg of sulfoaluminate clinker were weighed according to their mass and added to a dry powder mixer. The mixture was stirred at 20°C for 30 minutes to promote uniform mixing and obtain the spraying material.

[0044] Example 5 This embodiment differs from Embodiment 1 in the following ways: This embodiment provides a spraying material based on crystal phase change cooling. Its preparation method and specific operating parameters are as follows: Weigh 11 kg of phase-edge crystal material, 0.5 kg of nucleating agent, 0.1 kg of accelerator, 0.1 kg of dispersant, 0.2 kg of emulsifier, and 0.1 kg of interface stabilizer according to their mass weight. Weigh 12 kg of core-shell structured particles, 2 kg of reinforcing agent, 1 kg of rheology modifier, and 100 kg of sulfoaluminate clinker according to their mass weight and add them to a dry powder mixer. Stir at 25°C for 30 minutes to promote uniform mixing and obtain the spraying material.

[0045] Experimental Example After using the spraying materials in each embodiment, the material flowability, compressive strength, flexural strength, and spraying cooling performance were tested, and the results are shown in Table 1.

[0046] During the material flowability test, 1500 mL of the fresh slurry to be tested is poured into a standard Marviate funnel (the upper end is a cylindrical tube with a diameter of 152 mm, and the lower end is a thin tube with a length of 203 mm and an inner diameter of 4.76 mm). First, the lower outlet is blocked with a finger. After preparation, the finger is quickly removed and a stopwatch is started at the same time, allowing the slurry to flow out freely under gravity. The time is continued until all the slurry in the funnel has flowed out and the flow stops for the first time. The total outflow time (unit: seconds) is recorded.

[0047] The compressive strength test method for materials is as follows: The grout is cast into standard prismatic specimens (typically 40mm × 40mm × 160mm) and cured under standard conditions. Using a pressure testing machine, axial pressure is applied to the specimen at a constant rate until failure. The compressive strength value is the maximum failure load divided by the bearing area of ​​the specimen (unit: MPa).

[0048] The method for testing the flexural strength of materials is as follows: The grout is poured into standard prismatic specimens (usually 40mm × 40mm × 160mm), cured under standard conditions, and a three-point bending test is performed on a material testing machine. The load at which the specimen breaks is recorded. The flexural strength value is calculated using the three-point bending formula (unit: MPa).

[0049] The standard test method for the cooling performance of sprayed materials mainly adopts a comparative test method combining simulated solar radiation and infrared thermal imaging. In a controlled environment chamber, a solar simulator is used to vertically irradiate the sprayed sample and the untreated control sample at a constant irradiance (typically 1000 W / m²), ensuring that the heating conditions are identical for both. A high-precision infrared thermal imager is used to continuously monitor and record the temperature change curves over time at the surface center of both samples.

[0050] Table 1 shows the performance results of the spraying materials in the embodiments.

[0051] As shown in Table 1, the spraying material provided in this application significantly improves the grouting reinforcement effect.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A spraying material based on crystal phase transition cooling, characterized in that, The composition includes the following components in parts by mass: 10-15 parts core-shell structured particles, 1-3 parts reinforcing agent, 1 part rheology modifier, and 100 parts sulfoaluminate clinker; wherein the core-shell structured particles have a crystal phase transition cooling function.

2. The spraying material according to claim 1, characterized in that, The core-shell structured particles are dissolved in the phase-edge crystal material by adding nucleating agent, promoter, dispersant, emulsifier and interface stabilizer to obtain a solution; then the solution is dropped into water to obtain an emulsion and then dried.

3. The spraying material according to claim 2, characterized in that, The phase-edge crystal material comprises 100 parts by weight, nucleating agent 1-5 parts, accelerator 1 part, dispersant 1-3 parts, emulsifier 1-2 parts, and interface stabilizer 1 part.

4. The spraying material according to claim 2, characterized in that, The solution is suspended dropwise into water at 20-25°C under stirring and ultrasonic action.

5. The spraying material according to any one of claims 2-4, characterized in that, The phase-edge crystal material comprises tetradecyl acetate, 3,6-dimethyl-1,4-dioxane-2,5-dione, n-heptadecyl acetate, and n-eicosane in a mass ratio of 1:1:3:

6.

6. The spraying material according to claim 5, characterized in that, The nucleating agent comprises thulium oxide and titanium suboxide in a mass ratio of 1:

3.

7. The spraying material according to claim 5, characterized in that, The accelerator is 4-nitrobenzylthiophenol; And / or, the dispersant is sodium 5-amino-2-naphthalenesulfonate; And / or, the emulsifier is potassium lauryl sulfate; And / or, the interface stabilizer is diethyl phenylmalonate.

8. The spraying material according to claim 7, characterized in that, The reinforcing agent is molybdenum carbide and molybdenum glycinate of equal mass.

9. The spraying material according to claim 7, characterized in that, The rheology modifier is methyl 3-ureidofuran-2-carboxylic acid.

10. A method for preparing a spray coating material based on crystal phase transition cooling, characterized in that, Includes the following steps: Preparation of core-shell structured particles; According to stoichiometry, the core-shell structured particles, reinforcing agent, rheology modifier, and sulfoaluminate clinker are dry-mixed at 20-25°C for 20-30 minutes to obtain the spraying material according to any one of claims 1-9.

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