Novel thermal insulation film with adjustable transparency and reflectivity
The multi-layer electrochromic thermal insulation film solves the shortcomings of traditional thermal insulation materials in terms of intelligence and versatility, realizes intelligent adjustment of transparency and reflectivity, improves thermal insulation performance and construction efficiency, and has self-cleaning capabilities.
Patent Information
- Application Number
- CN202422815318.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Traditional insulation materials lack intelligence and versatility, and are unable to effectively adjust transparency and reflectivity to reduce heat loss.
A multilayer structure including a hydrophobic layer, an encapsulation protective layer, a flexible substrate layer, a conductive transparent layer, an electrochromic material layer, an electrolyte layer and a counter electrode layer was designed. The color change of the electrochromic material layer was controlled by an external power supply to achieve intelligent adjustment of transparency and reflectivity.
It can automatically adjust the transparency and reflectivity according to the ambient temperature or external signals, improve energy utilization efficiency, enhance thermal insulation effect, reduce energy consumption, simplify the installation process, improve construction efficiency, and has self-cleaning capabilities.
Smart Images
Figure CN223413588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal insulation materials, in particular to a novel thermal insulation film capable of adjusting transparency and reflectivity. Background Art
[0002] With the advancement of science and technology and growing awareness of energy conservation and environmental protection, smart materials are increasingly being used in fields such as construction, agriculture, and transportation. Among these, electrochromic materials, which can automatically adjust their transparency and reflectivity based on ambient temperature or external signals, have become a hot topic in research and application. While traditional insulation materials can reduce heat loss to a certain extent, they lack intelligence and versatility. Therefore, the development of a new insulation film with integrated electrochromic functionality that can adjust transparency and reflectivity is of great significance. Utility Model Content
[0003] The main technical problem to be solved by the utility model is to provide a thermal insulation film which has excellent thermal insulation performance and an intelligent temperature regulation function.
[0004] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:
[0005] A novel thermal insulation film with adjustable transparency and reflectivity, comprising a first hydrophobic layer, a first encapsulation protective layer, a flexible substrate layer, a first conductive transparent layer, an electrochromic material layer, an electrolyte layer, a counter electrode layer, a second conductive transparent layer, a second encapsulation protective layer, and a second hydrophobic layer, which are arranged in sequence;
[0006] The first hydrophobic layer and the second hydrophobic layer are the same;
[0007] The first encapsulation protection layer and the second encapsulation protection layer are the same;
[0008] The first conductive transparent layer and the second conductive transparent layer are the same.
[0009] Optionally, the first hydrophobic layer and the second hydrophobic layer are both silicon dioxide nanoparticle layers.
[0010] Optionally, both the first hydrophobic layer and the second hydrophobic layer are silicone resin layers.
[0011] Optionally, the flexible substrate layer is a polyethylene terephthalate layer or a polyimide layer.
[0012] Optionally, the first encapsulation protection layer and the second encapsulation protection layer are polydimethylsiloxane layers.
[0013] Optionally, the first conductive transparent layer and the second conductive transparent layer are indium tin oxide layers or nano silver wires.
[0014] Optionally, the electrolyte layer is a solid electrolyte layer or a gel electrolyte layer.
[0015] Optionally, the solid electrolyte layer is a polyethylene oxide layer, a polyacrylonitrile layer or a polyvinylidene fluoride layer;
[0016] The gel electrolyte layer is a polyvinyl alcohol layer, a polyacrylic acid layer, a sodium polyacrylate layer or a polymethyl methacrylate layer.
[0017] Optionally, the electrochromic material layer is a tungsten trioxide layer or a nickel oxide layer.
[0018] Optionally, the counter electrode layer is the same as the electrochromic material layer.
[0019] The technical solution provided by the utility model has the following technical effects:
[0020] The synergistic effect of the electrochromic material layer and the electrolyte layer achieves intelligent temperature regulation, automatically adjusting transparency and reflectivity based on ambient temperature or external signals, improving energy efficiency. This enhances thermal insulation in cold weather and increases reflectivity in hot weather, reducing heat absorption, lowering energy consumption, and improving living and user comfort.
[0021] Because both sides of the film are coated with the same hydrophobic layer and encapsulation protective layer, there is no need to consider the front and back when laying, simplifying the installation process and improving construction efficiency. During installation, even if the operator accidentally flips the film, its performance will not be affected, reducing installation errors caused by misoperation.
[0022] The hydrophobic layer has good hydrophobicity and self-cleaning ability, which can reduce the adhesion of rainwater, dust and pollutants, keep the surface of the film clean, maintain the high light transmittance of the film, ensure that the transparency and reflectivity of the electrochromic material are not affected, and improve the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.
[0024] Figure 1 It is a structural schematic diagram of a new thermal insulation film with adjustable transparency and reflectivity provided in an embodiment of the present utility model.
[0025] Description of reference numerals:
[0026] 1. First hydrophobic layer, 2. First encapsulation protective layer, 3. Flexible substrate layer, 4. First conductive transparent layer, 5. Electrochromic material layer, 6. Electrolyte layer, 7. Counter electrode layer, 8. Second conductive transparent layer, 9. Second encapsulation protective layer, 10. Second hydrophobic layer. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.
[0028] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.
[0029] Figure 1 This is a schematic diagram of the structure of a novel thermal insulation film with adjustable transparency and reflectivity provided in an embodiment of the present invention. The above schematic diagram only illustrates the structural relationship related to the invention point and is not intended to be the actual scale of the actual product.
[0030] In this embodiment, a new thermal insulation film with adjustable transparency and reflectivity includes a first hydrophobic layer 1, a first encapsulation protective layer 2, a flexible base layer 3, a first conductive transparent layer 4, an electrochromic material layer 5, an electrolyte layer 6, a counter electrode layer 7, a second conductive transparent layer 8, a second encapsulation protective layer 9, and a second hydrophobic layer 10, which are arranged in sequence; the first hydrophobic layer 1 and the second hydrophobic layer 10 are the same; the first encapsulation protective layer 2 and the second encapsulation protective layer 9 are the same; and the first conductive transparent layer 4 and the second conductive transparent layer 8 are the same.
[0031] How it works
[0032] Electric field application: A voltage is applied between the first conductive transparent layer 4 and the second conductive transparent layer 8 by an external power source.
[0033] Ion migration: ions in the electrolyte layer 6 migrate under the action of the electric field and enter or leave the electrochromic material layer 5 .
[0034] Color change: The electrochromic material layer 5 changes color during the insertion or extraction of ions, thereby changing the transparency and reflectivity of the film.
[0035] Reverse process: When the external power supply is disconnected or the voltage is applied in the reverse direction, the ions migrate out of the electrochromic material layer 5 and the material returns to its initial state.
[0036] The synergistic effect of the electrochromic material layer 5 and the electrolyte layer 6 achieves intelligent temperature regulation, automatically adjusting transparency and reflectivity based on ambient temperature or external signals, thereby improving energy efficiency. This enhances thermal insulation in cold weather and increases reflectivity in hot weather, reducing heat absorption, lowering energy consumption, and enhancing living and user comfort.
[0037] Because both sides of the film are coated with the same hydrophobic layer and encapsulation protective layer, there is no need to consider the front and back when laying, simplifying the installation process and improving construction efficiency. During installation, even if the operator accidentally flips the film, its performance will not be affected, reducing installation errors caused by misoperation.
[0038] The hydrophobic layer has good hydrophobicity and self-cleaning ability, which can reduce the adhesion of rainwater, dust and pollutants, keep the surface of the film clean, maintain the high light transmittance of the film, ensure that the transparency and reflectivity of the electrochromic material are not affected, and improve the overall performance.
[0039] More specifically:
[0040] The first hydrophobic layer 1 is the outermost layer, directly contacting the external environment.
[0041] Function: Provides self-cleaning and waterproof functions to reduce the adhesion of dust and pollutants.
[0042] Materials: Silica nanoparticle layer or silicone resin layer.
[0043] Connection relationship: Covering on the first encapsulation protection layer 2 by coating, spraying or chemical vapor deposition.
[0044] The first encapsulation protection layer 2 is located below the first hydrophobic layer 1 .
[0045] Function: Protect the internal structure and prevent erosion from the external environment (such as moisture and oxygen).
[0046] Materials: Polydimethylsiloxane (PDMS) layer.
[0047] Connection relationship: Covering on the flexible base layer 3 by coating, spraying or hot pressing.
[0048] The flexible base layer 3 is located under the first encapsulation protection layer 2 .
[0049] Function: Provides mechanical support and flexibility.
[0050] Material: Polyethylene terephthalate (PET) layer or polyimide (PI) layer.
[0051] Connection relationship: serves as the basic support for the entire structure.
[0052] The first conductive transparent layer 4 is located on the flexible substrate layer 3 .
[0053] Function: Serves as a conductive substrate for the electrochromic material layer 5, providing a transparent conductive path.
[0054] Materials: Indium tin oxide (ITO) layer or silver nanowire.
[0055] Connection relationship: Deposited on the flexible base layer 3 by physical or chemical methods (such as magnetron sputtering, vacuum evaporation).
[0056] The electrochromic material layer 5 is located on the first conductive transparent layer 4 .
[0057] Function: Changes color and transparency through electrochemical reaction.
[0058] Material: Tungsten trioxide (W03) layer or nickel oxide (Ni0) layer.
[0059] Connection relationship: Deposited on the first conductive transparent layer 4 by a sol-gel method, electrochemical deposition or chemical vapor deposition method.
[0060] The electrolyte layer 6 is located on the electrochromic material layer 5 .
[0061] Function: Provide an ion transfer path to maintain the electrochemical reaction.
[0062] Material: solid electrolyte layer 6 or gel electrolyte layer 6.
[0063] Solid electrolyte layer 6: polyethylene oxide (PEO) layer, polyacrylonitrile (PAN) layer or polyvinylidene fluoride (PVDF) layer.
[0064] Connection relationship: evenly coated on the electrochromic material layer 5 by spin coating, spray coating or dipping.
[0065] Among them, polyethylene oxide (PEO) has good transparency and ionic conductivity. When used in combination with lithium salts (such as LiClO4 and LiTFSI), it can form a transparent solid electrolyte. The preparation process is simple, the cost is low, and the mechanical strength is moderate.
[0066] Polyacrylonitrile (PAN) has high ionic conductivity, good mechanical properties, high transparency, high mechanical strength, good chemical stability, and is suitable for high temperature environments.
[0067] Polyvinylidene fluoride (PVDF) has good chemical stability, mechanical strength, and high transparency. It is suitable for high temperature environments and has good chemical stability.
[0068] Gel electrolyte layer 6: polyvinyl alcohol (PVA) layer, polyacrylic acid (PAA) layer, sodium polyacrylate (PAA-Na) layer or polymethyl methacrylate (PMMA) layer.
[0069] Polyvinyl alcohol (PVA) is combined with lithium salts (such as LiCIO4 and LiTFSI) to form a transparent gel electrolyte with high ionic conductivity. The preparation process is simple, the cost is low, and the transparency is high.
[0070] Polyacrylic acid (PAA) is used in combination with lithium salts to provide excellent mechanical strength, ionic conductivity, and high transparency. It has moderate mechanical strength and is suitable for a variety of electrochemical applications.
[0071] Sodium polyacrylate (PAA-Na) has good water absorption and ion conductivity, high transparency and low cost.
[0072] Polymethyl methacrylate (PMMA) is combined with lithium salt to form a gel electrolyte with high mechanical strength and ion conductivity. It has high mechanical strength and high transparency.
[0073] The counter electrode layer 7 is located on the electrolyte layer 6. As a counter electrode for electrochemical reactions, it provides reverse charge balance.
[0074] Material: the same as the electrochromic material layer 5, such as a tungsten trioxide (W03) layer or a nickel oxide (Ni0) layer.
[0075] Connection relationship: Deposited on the electrolyte layer 6 by sol-gel method, electrochemical deposition or chemical vapor deposition.
[0076] The second conductive transparent layer 8 is located on the counter electrode layer 7 .
[0077] Function: Serves as a conductive top plate for the electrode layer 7, providing a transparent conductive path.
[0078] Materials: Indium tin oxide (ITO) layer or silver nanowires.
[0079] Connection relationship: Deposited on the counter electrode layer 7 by physical or chemical methods (such as magnetron sputtering, vacuum evaporation).
[0080] The second encapsulation protection layer 9 is located on the second conductive transparent layer 8 .
[0081] Function: Protect the internal structure and prevent erosion from the external environment (such as moisture and oxygen).
[0082] Materials: Polydimethylsiloxane (PDMS) layer.
[0083] Connection relationship: Covering on the second conductive transparent layer 8 by coating, spraying or hot pressing.
[0084] The second hydrophobic layer 10 is the innermost layer and directly contacts the internal environment.
[0085] Function: Provides self-cleaning and waterproof functions to reduce the adhesion of dust and pollutants.
[0086] Materials: Silica nanoparticle layer or silicone resin layer.
[0087] Connection relationship: Covering on the second encapsulation protection layer 9 by coating, spraying or chemical vapor deposition.
[0088] Processing steps
[0089] 1. Preparation of flexible substrate layer 3
[0090] Material selection: Choose PET or PI as the material for the flexible substrate layer 3.
[0091] Surface treatment: The flexible base layer 3 is subjected to surface treatment, such as plasma treatment or chemical modification, to improve its adhesion to subsequent layers.
[0092] 2. Deposition of the first conductive transparent layer 4
[0093] Method selection: Use magnetron sputtering, vacuum evaporation or spraying methods.
[0094] Deposition process: Deposit a layer of conductive transparent material (such as ITO or nano silver wire) on the flexible substrate layer 3 to ensure uniform thickness and that the conductivity and transparency meet the requirements.
[0095] 3. Deposition of electrochromic material layer 5
[0096] Method selection: Use sol-gel, electrochemical deposition or chemical vapor deposition methods.
[0097] Deposition process: A layer of electrochromic material (such as W03 or Ni0) is deposited on the first conductive transparent layer 4 to ensure uniform thickness and good electrochromic performance.
[0098] 4. Preparation of electrolyte layer 6
[0099] Method of choice: Use methods such as spin coating, spray coating or dipping.
[0100] Preparation process: A layer of electrolyte material (such as PE0, PAN, PVDF or PVA, PAA, PAA-Na, PMMA) is evenly coated on the electrochromic material layer 5 to ensure uniform thickness and good ion conductivity.
[0101] 5. Deposition of the electrode layer 7
[0102] Method selection: Use sol-gel, electrochemical deposition or chemical vapor deposition methods.
[0103] Deposition process: Deposit a layer of counter electrode material (the same as the electrochromic material layer 5, such as W03 or Ni0) on the electrolyte layer 6 to ensure uniform thickness, good conductivity and electrochemical performance.
[0104] 6. Deposition of the second conductive transparent layer 8
[0105] Method selection: Use magnetron sputtering, vacuum evaporation or spraying methods.
[0106] Deposition process: deposit a layer of conductive transparent material (such as ITO or nano silver wire) on the counter electrode layer 7 to ensure uniform thickness and compliance with the requirements for conductivity and transparency.
[0107] 7. Preparation of the first encapsulation protective layer 2
[0108] Method selection: Use coating, spraying or hot pressing methods.
[0109] Preparation process: A layer of encapsulation protection material (such as PDMS) is coated on the other side of the flexible substrate layer 3 (i.e., opposite to the first conductive transparent layer 4) to ensure uniform thickness, good mechanical strength and environmental stability.
[0110] 8. Preparation of the first hydrophobic layer 1
[0111] Method selection: Use coating, spraying or chemical vapor deposition methods.
[0112] Preparation process: A layer of hydrophobic material (such as silicon dioxide nanoparticles or silicone resin) is coated on the first encapsulation protection layer 2 to ensure uniform thickness, good hydrophobicity and self-cleaning performance.
[0113] 9. Preparation of the second encapsulation protection layer 9
[0114] Method selection: Use coating, spraying or hot pressing methods.
[0115] Preparation process: A layer of encapsulation protection material (such as PDMS) is coated on the other side of the second conductive transparent layer 8 (i.e. opposite to the electrode layer 7) to ensure uniform thickness, good mechanical strength and environmental stability.
[0116] 10. Preparation of the second hydrophobic layer 10
[0117] Method selection: Use coating, spraying or chemical vapor deposition methods.
[0118] Preparation process: A layer of hydrophobic material (such as silicon dioxide nanoparticles or silicone resin) is coated on the second encapsulation protection layer 9 to ensure uniform thickness, good hydrophobicity and self-cleaning performance.
[0119] In the process of preparing the new thermal insulation film with adjustable transparency and reflectivity, in addition to the processing steps mentioned above, there are some special points that need to be paid attention to in order to ensure the performance and quality of the final product. The following are some key considerations:
[0120] 1. Material selection and purity
[0121] High-purity materials: Ensure that all materials used (such as ITO, WO3, electrolyte, etc.) are of high purity to avoid impurities affecting the performance of the film.
[0122] Compatibility: Ensure the compatibility between materials of each layer to avoid interface problems caused by material mismatch.
[0123] 2. Surface treatment
[0124] Substrate treatment: The flexible substrate layer 3 is subjected to appropriate surface treatment (such as plasma treatment, chemical modification) to improve its adhesion with subsequent layers.
[0125] Cleaning: Before each deposition step, ensure that the flexible base layer 3 and the surfaces of each layer are clean and free of contamination to prevent impurities from affecting the bonding strength between layers.
[0126] 3. Deposition process
[0127] Uniformity: Ensure that each layer is deposited evenly to avoid performance differences caused by uneven thickness. Advanced deposition equipment (such as magnetron sputtering and chemical vapor deposition) can be used to ensure uniformity.
[0128] Temperature control: Strictly control the temperature during the deposition process to avoid the impact of high temperature on material properties.
[0129] Rate control: Control the deposition rate to ensure the crystallinity and density of the material.
[0130] 4. Preparation of Electrolyte Layer 6
[0131] Uniform coating: When using methods such as spin coating, spray coating or dipping, ensure that the electrolyte layer is evenly coated to avoid bubbles and cracks.
[0132] Curing conditions: Based on the characteristics of the selected material, select appropriate curing conditions (such as temperature and time) to ensure the stability and ionic conductivity of the electrolyte layer.
[0133] 5. Preparation of Electrochromic Material Layer 5
[0134] Electrochemical stability: Select electrochromic materials with high electrochemical stability to ensure stable performance over multiple electrochemical cycles.
[0135] Thickness control: Control the thickness of the electrochromic material layer 5 to ensure its performance in the electrochemical reaction.
[0136] 6. Preparation of encapsulation protective layer (first encapsulation protective layer and second encapsulation protective layer)
[0137] Thickness and uniformity: Ensure that the thickness of the encapsulation protective layer is uniform to avoid insufficient protection due to being too thin and reduced transparency due to being too thick.
[0138] Mechanical strength: Choose packaging materials with high mechanical strength to ensure that the film will not be damaged when bent or folded.
[0139] 7. Preparation of hydrophobic layers (first and second hydrophobic layers)
[0140] Hydrophobicity: Ensure that the hydrophobic layer has good hydrophobicity and self-cleaning ability, which can be tested using a contact angle meter.
[0141] Adhesion: Ensure the adhesion between the hydrophobic layer and the encapsulation protective layer to avoid falling off during use.
[0142] 8. Quality Control
[0143] Appearance inspection: Use instruments to inspect the surface of the film to ensure there are no defects such as bubbles, cracks, scratches, etc.
[0144] Performance testing: Comprehensive performance testing is conducted, including transparency, conductivity, electrochromic properties, mechanical properties, and environmental stability.
[0145] 9. Environmental Control
[0146] Cleanroom: Film preparation is performed in a cleanroom to avoid interference from dust and pollutants.
[0147] Temperature and humidity control: Strictly control the temperature and humidity of the environment during the preparation process to avoid the impact of environmental factors on material properties.
[0148] 10. Security Measures
[0149] Operating specifications: Develop detailed operating specifications to ensure the safety of operators.
[0150] Protective measures: Use necessary protective equipment (such as gloves, masks, goggles) to avoid harm to operators from harmful substances.
[0151] The thickness and cost of each layer of the new thermal insulation film with adjustable transparency and reflectivity are roughly as follows:
[0152] The first hydrophobic layer and the second hydrophobic layer have a thickness range of 10-50 nm;
[0153] Materials: silica nanoparticles or silicone resin; cost: about 0.1-0.5 yuan / square meter.
[0154] Note: The thickness of the hydrophobic layer is relatively thin, but uniformity and hydrophobicity must be ensured.
[0155] The first encapsulation protection layer and the second encapsulation protection layer have a thickness range of 5-20 μm.
[0156] Material: Polydimethylsiloxane (PDMS). Cost: Approximately 0.5-1.5 yuan / square meter.
[0157] Note: The encapsulation protective layer needs to have good mechanical strength and environmental stability to ensure that the internal structure is not affected by the outside world.
[0158] Flexible substrate, thickness range: 50-200μm.
[0159] Material: polyethylene terephthalate (PET) or polyimide (PI), cost: about 1-3 yuan / square meter.
[0160] Note: The flexible substrate layer needs to have high flexibility and mechanical strength to ensure that the film is not damaged when bent or folded.
[0161] The first conductive transparent layer and the second conductive transparent layer have a thickness range of 100-300 nm.
[0162] Materials: indium tin oxide (ITO) or nano silver wire, cost: about 2-5 yuan / square meter.
[0163] Note: The conductive transparent layer needs to have high transparency and conductivity to ensure the normal operation of the electrochromic material layer.
[0164] Electrochromic material layer, thickness range: 100-300nm.
[0165] Material: tungsten trioxide (W03) or nickel oxide (Ni0), cost: about 1-3 yuan / square meter.
[0166] Note: The electrochromic material layer needs to have excellent electrochromic properties to achieve temperature regulation function.
[0167] Electrolyte layer, thickness range: 1-10μm.
[0168] Materials: solid electrolyte (such as polyethylene oxide (PEO), polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF)) or gel electrolyte (such as polyvinyl alcohol (PVA), polyacrylic acid (PAA), sodium polyacrylate (PAA-Na), polymethyl methacrylate (PMMA)), cost: about 1-3 yuan / square meter.
[0169] Note: The electrolyte layer needs to provide a stable ion conduction path to ensure the electrochemical reaction.
[0170] Counter electrode layer, thickness range: 100-300nm.
[0171] Materials: Same as the electrochromic material layer, such as tungsten trioxide (W03) or nickel oxide (Ni0), cost: about 1-3 yuan / square meter.
[0172] Note: The counter electrode layer needs to be the same as the electrochromic material layer to ensure the balance of the electrochemical reaction.
[0173] While some layers carry a higher cost, they provide many key properties essential for achieving the film's high performance and versatility. These include self-cleaning, environmental stability, mechanical strength, high transparency, high conductivity, electrochromic properties, and fast response. By properly selecting and optimizing the materials and thicknesses of each layer, it's possible to minimize costs while maintaining performance and improving product competitiveness.
[0174] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on the specific circumstances.
[0175] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.
[0176] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.
[0177] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A new thermal insulation film with adjustable transparency and reflectivity, characterized in that: The invention comprises a first hydrophobic layer (1), a first encapsulation protection layer (2), a flexible substrate layer (3), a first conductive transparent layer (4), an electrochromic material layer (5), an electrolyte layer (6), a counter electrode layer (7), a second conductive transparent layer (8), a second encapsulation protection layer (9), and a second hydrophobic layer (10) which are arranged in sequence; The first hydrophobic layer (1) and the second hydrophobic layer (10) are the same; The first encapsulation protection layer (2) and the second encapsulation protection layer (9) are the same; The first conductive transparent layer (4) and the second conductive transparent layer (8) are the same.
2. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The first hydrophobic layer (1) and the second hydrophobic layer (10) are both silicon dioxide nanoparticle layers.
3. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The first hydrophobic layer (1) and the second hydrophobic layer (10) are both silicone resin layers.
4. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The flexible base layer (3) is a polyethylene terephthalate layer or a polyimide layer.
5. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The first encapsulation protection layer (2) and the second encapsulation protection layer (9) are polydimethylsiloxane layers.
6. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The first conductive transparent layer (4) and the second conductive transparent layer (8) are indium tin oxide layers or nano silver wires.
7. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The electrolyte layer (6) is a solid electrolyte layer (6) or a gel electrolyte layer (6).
8. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 7, characterized in that: The solid electrolyte layer (6) is a polyethylene oxide layer, a polyacrylonitrile layer or a polyvinylidene fluoride layer; The gel electrolyte layer (6) is a polyvinyl alcohol layer, a polyacrylic acid layer, a sodium polyacrylate layer or a polymethyl methacrylate layer.
9. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The electrochromic material layer (5) is a tungsten trioxide layer or a nickel oxide layer.
10. The novel thermal insulation film capable of adjusting transparency and reflectivity according to claim 1, characterized in that: The counter electrode layer (7) is the same as the electrochromic material layer (5).