Phase change energy storage module preparation method and heatstroke prevention and cooling labor protection product
By adding nanothermal particles and plasticizing lubricants to the initial phase change material, and combining and packaging the phase change energy storage module, the problem of insufficient cooling effect, comfort and durability of the phase change energy storage module in the prior art is solved, and the problem of insufficient cooling effect, comfort and durability of the phase change energy storage module is realized. More efficient heat transfer, better flexibility and longer service life.
Patent Information
- Application Number
- CN202411681888.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-02-11
AI Technical Summary
The existing phase change energy storage modules have poor cooling effect, comfort and durability, insufficient thermal conductivity, lack of flexibility and ductility, easy to break or deform, and their performance will gradually decline after long-term use.
By adding nanothermal particles and plasticizing lubricant to the initial phase change material, the target phase change material is prepared and packaged to form a phase change energy storage module. This method improves the thermal conductivity and heat transfer efficiency of phase change materials, enhances flexibility and ductility, extends the cooling time, and broadens the phase change temperature range.
It realizes the rapid and effective heat absorption or heat release of the phase change energy storage module, improves the cooling effect, enhances comfort and durability, extends service life, and improves the applicability in different temperature environments.
Smart Images
Figure CN119412990A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of energy storage and utilization, and in particular to a method for preparing a phase change energy storage module and a heatstroke prevention and cooling labor protection product. Background Art
[0002] Phase Change Material (PCM) refers to a material that can provide latent heat by changing its state within a certain temperature range. It will undergo a phase change when the temperature changes, such as from solid to liquid, from liquid to gas, or from solid to gas, etc. This process can absorb or release heat, thereby achieving energy storage or consumption. In related technologies, phase change materials can be integrated into specific structures or devices to form phase change energy storage modules, and phase change energy storage modules can be used to make heatstroke prevention and cooling labor protection products (such as clothes, hats, insoles, etc.) for workers to wear, so as to achieve temperature regulation during the work process, avoid heatstroke, and improve work comfort. However, the phase change materials used in existing phase change energy storage modules have poor thermal conductivity, resulting in low heat transfer efficiency, and are unable to quickly and effectively absorb or release heat to the human body. The overall cooling effect is insufficient, and the existing phase change energy storage modules absorb or release heat quickly, which to a certain extent limits the performance of heatstroke prevention and cooling labor protection products; in addition, they lack flexibility and ductility, which reduces the comfort of workers when wearing them, and are prone to cracking or deformation, and lack durability. Summary of the invention
[0003] The present application provides a phase change energy storage module preparation method and heatstroke prevention and cooling labor protection products, aiming to solve the problems of poor cooling effect, comfort and durability of phase change energy storage modules in related technologies.
[0004] In order to solve the above-mentioned drawbacks existing in the related technology, the first aspect of the present application provides a method for preparing a phase change energy storage module, comprising: obtaining an initial phase change material, nano-thermal conductive particles and a plasticizer lubricant; adding the nano-thermal conductive particles and the plasticizer lubricant to the initial phase change material, and obtaining a target phase change material by blending; and packaging the target phase change material to obtain a phase change energy storage module.
[0005] In some implementation schemes, the step of adding nano-thermal conductive particles and plasticizing lubricant to the initial phase change material and obtaining the target phase change material by blending includes: uniformly dispersing the nano-thermal conductive particles in the plasticizing lubricant to obtain a uniform dispersion; heating the initial phase change material to a molten state; adding the uniform dispersion to the molten initial phase change material, and obtaining the target phase change material by continuous stirring. As one implementation scheme, the step of adding the uniform dispersion to the molten initial phase change material and obtaining the target phase change material by continuous stirring includes: adding the uniform dispersion to the molten initial phase change material, and obtaining a uniform mixed liquid by continuous stirring; adding a softener to the uniform mixed liquid, and obtaining the target phase change material by continuous stirring. In this implementation scheme, the step of adding a softener to the uniform mixed liquid includes: adding a softener and a functional additive to the uniform mixed liquid, and the functional additive includes at least one of an antioxidant and an anti-aging agent. Among them, the initial phase change material includes any one of paraffin, fatty acid and polyethylene glycol; the plasticizer lubricant includes white oil; the softener includes any one of silicone and polyurethane; the antioxidant includes butylated hydroxytoluene; the nano thermal conductive particles include any one of graphene, carbon nanotubes and aluminum oxide nanoparticles.
[0006] In some implementations, the step of packaging the target phase change material to obtain the phase change energy storage module includes: filling the target phase change material into an elastic bag and sealing the elastic bag to obtain the phase change energy storage module.
[0007] In some implementation schemes, the step of packaging the target phase change material to obtain a phase change energy storage module includes: filling the target phase change material into an elastic bag and sealing the elastic bag to obtain a phase change energy storage unit; and covering one side of the phase change energy storage unit with a reflective insulation film to obtain a phase change energy storage module.
[0008] In some implementations, the step of packaging the target phase change material to obtain a phase change energy storage module includes: filling the target phase change material into an elastic bag and sealing the elastic bag to obtain a phase change energy storage unit; using a reflective thermal insulation film to cover one side of the phase change energy storage unit; placing at least one phase change energy storage unit covered with a reflective thermal insulation film in a waterproof bag and sealing the waterproof bag to obtain a phase change energy storage module. The elastic bag is made of silicone or polyurethane; the reflective thermal insulation film includes any one of an aluminum-plated film and a silver-plated film; and the waterproof bag is made of polyethylene or polyvinyl chloride.
[0009] The second aspect of the present application provides a heatstroke prevention and cooling labor protection product, which includes a main body and at least one phase change energy storage module prepared by the phase change energy storage module preparation method mentioned in the first aspect of the present application, and each phase change energy storage module is arranged in the main body.
[0010] Regarding the phase change energy storage module preparation method mentioned in the first aspect of the present application, nano thermal conductive particles and plasticizer lubricant are added to the initial phase change material, and the target phase change material is obtained by blending, and then the target phase change material is packaged to finally obtain a phase change energy storage module. It can be seen that the present application adds nano-thermal conductive particles to the initial phase change material, which improves the thermal conductivity and heat transfer efficiency of the phase change material, can achieve rapid and effective heat absorption or heat release, and ensures that heat is quickly and evenly transferred throughout the phase change material, thereby improving the overall cooling effect of the phase change energy storage module; the present application also adds a plasticizer lubricant to the initial phase change material, which improves the flexibility and ductility of the phase change material, making the phase change energy storage module more comfortable, and not easy to break or deform, thereby enhancing its durability; by formulating the initial phase change material, nano-thermal conductive particles and plasticizer lubricant, and optimizing the addition amount of nano-thermal conductive particles and plasticizer lubricant, not only can the phase change latent heat and heat capacity of the phase change material be increased, the cooling time of the phase change energy storage module be extended, so that it can still maintain a low temperature state for a long time in a high temperature environment, but also the phase change temperature range of the phase change material can be broadened and accurately controlled, so that the phase change energy storage module can work effectively in different temperature environments, and has stronger applicability.
[0011] For the heatstroke prevention and cooling labor protection products mentioned in the second aspect of the present application, at least one phase change energy storage module is arranged in the main body. Since the phase change energy storage module arranged in the main body is prepared by the phase change energy storage module preparation method mentioned in the first aspect of the present application, the heatstroke prevention and cooling labor protection products have all the advantages of the phase change energy storage module preparation method mentioned in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the related technologies or the embodiments of the present application, the drawings required for use in the description of the related technologies or the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, not all embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 A schematic diagram of a process for preparing a phase change energy storage module provided in an embodiment of the present application;
[0014] Figure 2 Provided in the embodiments of this application Figure 1 Schematic diagram of the process of S120;
[0015] Figure 3 Provided in the embodiments of this application Figure 2 Schematic diagram of the process of S123;
[0016] Figure 4Provided in the embodiments of this application Figure 1 Schematic diagram of the process flow of S130;
[0017] Figure 5 This is a DSC test chart of the initial phase change material provided in the embodiment of the present application. DETAILED DESCRIPTION
[0018] In the related art, the phase change material used in the phase change energy storage module has the following disadvantages: poor thermal conductivity, resulting in low heat transfer efficiency, unable to quickly and effectively absorb / release heat, and the overall cooling effect is insufficient, which limits the performance of heatstroke prevention and cooling labor protection products to a certain extent; lack of flexibility and ductility, reducing the comfort of workers when wearing, and easy to break or deform, and insufficient durability; due to oxidation, volatilization and other reasons, the performance will gradually decline, or even fail, which not only shortens the service life of heatstroke prevention and cooling labor protection products, but also increases the user's maintenance cost; the phase change temperature range cannot meet the needs of various ambient temperatures, reducing the applicability to different ambient temperatures; it is easy to leak or evaporate in liquid state, affecting the durability and safety of heatstroke prevention and cooling labor protection products; degradation and / or agglomeration may occur during long-term use, affecting the continuous cooling effect. In view of this, the present application proposes a method for preparing a phase change energy storage module in the following embodiments, and the phase change energy storage module prepared by this method can effectively avoid the above-mentioned disadvantages existing in the related art.
[0019] In order to make the purpose, technical solutions and advantages of the present application more obvious and easy to understand, the present application will be clearly and completely described below in conjunction with the embodiments of the present application and the corresponding drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. It should be understood that the embodiments of the present application described below are only used to explain the present application and are not used to limit the present application, that is, based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0020] See also Figure 1 , Figure 1 This embodiment provides a method for preparing a phase change energy storage module, and the method for preparing a phase change energy storage module includes the following steps 110 to 130 (abbreviated as S110 to S130).
[0021] S110, obtaining an initial phase change material, nano thermal conductive particles and a plasticizing lubricant.
[0022] In this embodiment, when preparing the phase change energy storage module, it is necessary to obtain the materials required for preparing the phase change energy storage module, namely the initial phase change material, nano thermal conductive particles and plasticizing lubricant. It should be noted that the initial phase change material should have a suitable phase change temperature and phase change latent heat, and may include any one of paraffin, fatty acid and polyethylene glycol; the nano thermal conductive particles should have excellent thermal conductivity, and may include any one of aluminum oxide nanoparticles, carbon nanotubes and graphene; the plasticizing lubricant should have good plasticizing and lubricating properties, and may include white oil, and the white oil used is preferably liquid paraffin.
[0023] S120, adding nano thermal conductive particles and plasticizing lubricant to the initial phase change material, and obtaining the target phase change material through blending.
[0024] In this embodiment, after obtaining the materials required for preparing the phase change energy storage module, nano thermal conductive particles and plasticizer lubricant need to be added to the initial phase change material, and the target phase change material is finally obtained by blending the initial phase change material, nano thermal conductive particles and plasticizer lubricant.
[0025] S130, packaging the target phase change material to obtain a phase change energy storage module.
[0026] In this embodiment, after the target phase change material is obtained by mixing the initial phase change material, nano-thermal conductive particles and plasticizing lubricant, the target phase change material obtained needs to be packaged, that is, the target phase change material is integrated into a specific structure or device, and finally a phase change energy storage module is formed. It should be noted that the phase change energy storage module prepared by S110 to S130 can be used to make heatstroke prevention and cooling labor protection products (such as clothes, hats and insoles, etc.). Usually, heatstroke prevention and cooling labor protection products include a body, then at least one phase change energy storage module prepared by S110 to S130 can be set in the body, so that the temperature of the workers in the work process can be adjusted by the phase change energy storage module, which can not only prevent the workers from heatstroke, but also improve the comfort of the workers at work.
[0027] As can be seen from the above, in this embodiment, nano-thermal conductive particles are added to the initial phase change material, which improves the thermal conductivity and heat transfer efficiency of the phase change material, can achieve rapid and effective heat absorption or heat release, and ensure that heat is quickly and evenly transferred throughout the phase change material, thereby improving the overall cooling effect of the phase change energy storage module; the present application also adds a plasticizer lubricant to the initial phase change material to improve the flexibility and ductility of the phase change material, so that the phase change energy storage module is more comfortable and not easy to break or deform, thereby enhancing the durability of the phase change energy storage module; by blending the initial phase change material, nano-thermal conductive particles and plasticizer lubricant, and optimizing the addition amount of nano-thermal conductive particles and plasticizer lubricant, not only can the phase change latent heat and heat capacity of the phase change material be increased, the cooling time of the phase change energy storage module be extended, so that it can still maintain a low temperature state for a long time in a high temperature environment, but also the phase change temperature range of the phase change material can be broadened and accurately controlled, so that the phase change energy storage module can work effectively in different temperature environments, that is, the phase change energy storage module is more applicable to different temperature environments.
[0028] also, Figure 5 This is the DSC test diagram of the initial phase change material in S110, that is, the initial phase change material is tested using differential scanning calorimetry (DSC). The test results are as follows: Figure 5 As shown, from Figure 5 It can be seen that the phase change temperature of the initial phase change material is about 26°C and the enthalpy value is 218J / g. When the external temperature is higher than this temperature, the initial phase change material will release its stored cold to the outside and continue to supply energy for more than two hours, which can effectively reduce the body temperature and provide a comfortable temperature environment.
[0029] In some embodiments, Figure 2 yes Figure 1 In the process diagram of S120, for the step of adding nano-thermal conductive particles and plasticizing lubricant to the initial phase change material and obtaining the target phase change material by blending, it specifically includes steps 121 to 123 (abbreviated as S121 to S123), namely: S121, uniformly dispersing the nano-thermal conductive particles in the plasticizing lubricant to obtain a uniform dispersion; S122, heating the initial phase change material to a molten state; S123, adding the uniform dispersion to the initial phase change material in a molten state, and obtaining the target phase change material by continuous stirring. That is to say, in the process of preparing the target phase change material, the nano-thermal conductive particles can be uniformly dispersed in the plasticizing lubricant by an ultrasonic disperser or a high shear disperser to obtain a uniform dispersion of the nano-thermal conductive particles and the plasticizing lubricant, and then the initial phase change material can be heated to enter a molten state and keep the temperature constant, and finally the uniform dispersion of the nano-thermal conductive particles and the plasticizing lubricant can be gradually added to the initial phase change material in a molten state, and continuously stirred, so as to obtain the target phase change material.
[0030] As one example, Figure 3 Shows Figure 2 The process diagram of S123 in the process diagram, for the step of adding a uniform dispersion to the initial phase change material in a molten state and obtaining the target phase change material by continuous stirring, specifically includes the following steps 1231 and 1232 (abbreviated as S1231 and S1232), namely: S1231, adding a uniform dispersion to the initial phase change material in a molten state, and obtaining a uniform mixed liquid by continuous stirring; S1232, adding a softener to the uniform mixed liquid, and obtaining the target phase change material by continuous stirring. In this embodiment, the uniform dispersion of nano thermal conductive particles and plasticizing lubricant is gradually added to the initial phase change material in a molten state and continuously stirred. What is obtained is not the target phase change material, but a uniform mixed liquid of the initial phase change material, nano thermal conductive particles and plasticizing lubricant. After that, an appropriate amount of softener needs to be added to the uniform mixed liquid, and the target phase change material can be obtained by continuous stirring. It is understandable that in this embodiment, a softener is added when preparing the target phase change material, which can further improve the flexibility and ductility of the phase change material, so that the phase change energy storage module has better comfort and is not easy to break or deform, further enhancing the durability of the phase change energy storage module. Exemplarily, the softener includes any one of silicone and polyurethane.
[0031] Further, for S1232, in addition to adding a softener to the uniform mixed liquid, a functional additive may be added to the uniform mixed liquid, and the added functional additive includes at least one of an antioxidant and an anti-aging agent. It is understandable that in the present embodiment, functional additives such as antioxidants and anti-aging agents are also added when preparing the target phase change material, which can improve the antioxidant and anti-aging properties of the phase change material, extend the service life of the phase change energy storage module, and ensure the stability of the performance of the phase change energy storage module during long-term use. Exemplarily, the antioxidant includes butylated hydroxytoluene (BHT). In addition, it should be noted that for the materials and additives used in the process of preparing the phase change energy storage module of the present application (such as initial phase change materials, plasticizers, lubricants, softeners and antioxidants, etc.), environmentally friendly materials and degradable additives, such as degradable polymers and natural antioxidants, etc., can be selected, so that the impact of the phase change energy storage module on the environment can be reduced, the recyclability and environmental protection of the phase change energy storage module can be improved, and the phase change energy storage module meets the requirements of sustainable development.
[0032] In some embodiments, for S130, that is, the step of packaging the target phase change material to obtain a phase change energy storage module, it specifically includes: filling the target phase change material into an elastic bag, and obtaining the phase change energy storage module by sealing. That is to say, when packaging the target phase change material, the target phase change material can be filled into the elastic bag by an injection device, and then the elastic bag containing the target phase change material is sealed using a heat sealing or cold sealing technology, so that the elastic bag containing the target phase change material has good sealing properties to avoid leakage of the target phase change material in the elastic bag, so that a phase change energy storage module can be obtained. It should be noted that if the target phase change material is filled into multiple elastic bags, the injection amount of the target phase change material in each elastic bag must be precisely controlled to ensure that the volume change of the target phase change material in each elastic bag in liquid and solid states does not cause damage or leakage of the elastic bag. It should also be noted that the elastic bag should have excellent elastic properties, and its material can be any one of silicone and polyurethane.
[0033] In some embodiments, for S130, that is, the step of packaging the target phase change material to obtain a phase change energy storage module, it specifically includes: filling the target phase change material into an elastic bag, and obtaining a phase change energy storage unit by sealing; using a reflective insulation film to cover one side of the phase change energy storage unit to obtain a phase change energy storage module. In other words, the target phase change material is filled into the elastic bag by an injection device and sealed, and what is obtained is not a phase change energy storage module, but a phase change energy storage unit. After that, the obtained phase change energy storage unit needs to be placed on the reflective insulation film, and the reflective insulation film is covered on one side of the phase change energy storage unit by hot pressing or gluing technology, and then the phase change energy storage module can be obtained. It can be understood that by covering one side of the phase change energy storage unit with a reflective insulation film, and making the reflective insulation film face the external space in the heatstroke prevention and cooling labor protection products, the external heat source can be reflected, the heat absorption and cold loss can be reduced, and the cooling effect of the phase change energy storage module can be further improved. Exemplarily, the reflective heat-insulating film includes any one of an aluminum-plated film and a silver-plated film.
[0034] In some embodiments, Figure 4 yes Figure 1The process diagram of S130 in the figure, for the step of packaging the target phase change material to obtain the phase change energy storage module, specifically includes steps 131 to 133 (abbreviated as S131 to S133), namely: S131, filling the target phase change material into the elastic bag, and obtaining the phase change energy storage unit by sealing; S132, using the reflective thermal insulation film to cover one side of the phase change energy storage unit; S133, placing at least one phase change energy storage unit coated with the reflective thermal insulation film in a waterproof bag, and obtaining the phase change energy storage module by sealing. In other words, by using the hot pressing or gluing technology to cover one side of the phase change energy storage unit with the reflective thermal insulation film, what is obtained is not a phase change energy storage module, and then the phase change energy storage unit coated with the reflective thermal insulation film needs to be placed in the waterproof bag, and the waterproof bag needs to be sealed based on the heat sealing or cold sealing technology, so that the waterproof bag containing the phase change energy storage unit has good sealing properties, so as to obtain the phase change energy storage module. In addition, it should be noted that one phase change energy storage unit coated with a reflective heat insulation film can be placed in the waterproof bag, or several phase change energy storage units coated with a reflective heat insulation film can be placed, and this application does not make a sole limitation on this. It should also be noted that the waterproof bag should have excellent waterproof performance, and its material can be any one of polyethylene and polyvinyl chloride.
[0035] It is understandable that the present application uses elastic bags, waterproof bags and sealing technology to package the target phase change material. The excellent elastic properties of the elastic bag and the good waterproof properties of the waterproof bag can effectively prevent the leakage and evaporation of the target phase change material in the liquid state, ensuring the safety and stability of the phase change energy storage module during use, extending the service life of the phase change energy storage module, and at the same time improving the ease of use of the phase change energy storage module, and can be used repeatedly. In addition, the waterproof bag of the present application can adopt a multi-layer structure design, such as a waterproof bag including a high-strength lining and a wear-resistant outer layer, which can increase the overall structural strength and durability of the phase change energy storage module, and effectively prevent the phase change energy storage module from being damaged due to external pressure or friction during long-term use.
[0036] The above embodiments are only preferred implementations of the present application, and they are not the only limitations on the contents related to the preparation method of the phase change energy storage module; in this regard, those skilled in the art can flexibly set them according to the actual application scenarios based on the above embodiments. It can be understood that through the implementation of the above embodiments of the present application, nano thermal conductive particles and plasticizing lubricants are added to the initial phase change material, and the target phase change material is obtained by blending, and then the target phase change material is packaged, and finally a phase change energy storage module is obtained. It can be seen that the present application adds nano-thermal conductive particles to the initial phase change material, improves the thermal conductivity and heat transfer efficiency of the phase change material, can achieve rapid and effective heat absorption or heat release, and ensures that heat is quickly and evenly transferred throughout the phase change material, thereby improving the overall cooling effect of the phase change energy storage module; the present application also adds a plasticizer lubricant to the initial phase change material, improves the flexibility and ductility of the phase change material, makes the phase change energy storage module more comfortable, and is not easy to break or deform, thereby enhancing the durability of the phase change energy storage module; by blending the initial phase change material, nano-thermal conductive particles and plasticizer lubricant, and optimizing the addition amount of nano-thermal conductive particles and plasticizer lubricant, not only can the phase change latent heat and heat capacity of the phase change material be increased, the cooling time of the phase change energy storage module be extended, so that it can still maintain a low temperature state for a long time in a high temperature environment, but also the phase change temperature range of the phase change material can be broadened and accurately controlled, so that the phase change energy storage module can work effectively in different temperature environments, that is, the phase change energy storage module is more applicable to different temperature environments. In short, the phase change energy storage module of the present application has significant improvements in thermal conductivity, phase change latent heat, material stability, comfort of use, safety and environmental protection, etc., has strong market competitiveness, and has good application prospects and promotion value.
[0037] It should be noted that the several embodiments shown in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can refer to each other. It should also be noted that in the text description of the present application, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is such an actual relationship or order between these entities or operations. Further, the terms "include", "comprise" or any other corresponding variants are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only these elements, but also other elements that are not explicitly listed, or may also include elements inherent to such process, method, article or equipment; and, in the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.
[0038] In addition, by implementing the several embodiments shown above in the present application, professionals and technicians in this field can implement or use the present application. For the several embodiments shown above in the present application, various modifications will be obvious to professionals and technicians in this field, and the general principles defined in the present application can be implemented in other embodiments not shown without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the several embodiments shown above, but will comply with the widest range consistent with the principles and novel features disclosed in the present application.
Claims
1. A method for preparing a phase change energy storage module, characterized in that: include: obtaining initial phase change material, nano thermal conductive particles and plasticizing lubricant; Adding the thermally conductive nanoparticles and the plasticizing lubricant to the initial phase change material, and obtaining the target phase change material by blending; The target phase change material is packaged to obtain a phase change energy storage module.
2. The method for preparing a phase change energy storage module according to claim 1, characterized in that: The step of adding the nano thermally conductive particles and the plasticizing lubricant to the initial phase change material and obtaining the target phase change material by blending comprises: uniformly dispersing the nano thermally conductive particles in the plasticizing lubricant to obtain a uniform dispersion; heating the initial phase change material to a molten state; The uniform dispersion is added to the initial phase change material in a molten state, and the target phase change material is obtained by continuous stirring.
3. The method for preparing a phase change energy storage module according to claim 2, characterized in that: The step of adding the uniform dispersion to the initial phase change material in a molten state and obtaining the target phase change material by continuous stirring comprises: Adding the uniform dispersion into the initial phase change material in a molten state, and obtaining a uniform mixed liquid by continuous stirring; A softener is added to the uniform mixed liquid, and the target phase change material is obtained by continuous stirring.
4. The method for preparing a phase change energy storage module according to claim 3, characterized in that: The step of adding a softener to the uniform mixed liquid comprises: Adding a softener and a functional additive into the uniform mixed liquid; wherein the functional additive comprises at least one of an antioxidant and an anti-aging agent.
5. The method for preparing a phase change energy storage module according to claim 4, characterized in that: The initial phase change material includes any one of paraffin, fatty acid and polyethylene glycol; the nano thermal conductive particles include any one of graphene, carbon nanotubes and aluminum oxide nanoparticles; the plasticizing lubricant includes white oil; the softener includes any one of silicone and polyurethane; and the antioxidant includes butylated hydroxytoluene.
6. The method for preparing a phase change energy storage module according to claim 1, characterized in that: The step of packaging the target phase change material to obtain a phase change energy storage module comprises: The target phase change material is filled into an elastic bag, and a phase change energy storage module is obtained by sealing.
7. The method for preparing a phase change energy storage module according to claim 1, characterized in that: The step of packaging the target phase change material to obtain a phase change energy storage module comprises: Filling the target phase change material into an elastic bag and sealing it to obtain a phase change energy storage unit; A phase change energy storage module is obtained by covering one side of the phase change energy storage unit with a reflective heat insulation film.
8. The method for preparing a phase change energy storage module according to claim 1, characterized in that: The step of packaging the target phase change material to obtain a phase change energy storage module comprises: Filling the target phase change material into an elastic bag and sealing it to obtain a phase change energy storage unit; Using a reflective heat-insulating film to cover one side of the phase-change energy storage unit; At least one phase-change energy storage unit coated with the reflective heat-insulating film is placed in a waterproof bag, and a phase-change energy storage module is obtained by sealing.
9. The method for preparing a phase change energy storage module according to claim 8, characterized in that: The elastic bag is made of any one of silica gel and polyurethane; the reflective heat-insulating film includes any one of aluminum-plated film and silver-plated film; the waterproof bag is made of any one of polyethylene and polyvinyl chloride.
10. A heatstroke prevention and cooling labor protection product, characterized in that: It comprises a main body and at least one phase change energy storage module prepared by the phase change energy storage module preparation method according to any one of claims 1 to 9, wherein the phase change energy storage module is arranged in the main body.