Moth eye mask

Abstract

The utility model discloses a moth eye mask, and relates to the technical field of moth eye masks. The moth-eye mask comprises a base material layer, a first electrode layer and a second electrode layer, the resin mixing layer is arranged on the base material layer in a coating manner; the plurality of nano magnetic rods are at least partially arranged in the resin mixing layer; wherein the plurality of nano magnetic rods are arranged on one side of the base material layer at intervals according to a preset direction, and the plurality of nano magnetic rods are arranged in a non-horizontal manner. The utility model solves the problems that the moth eye has a nanoscale high aspect ratio continuous convex microstructure, but the size and the shape of the microstructure enable the mold to be very difficult to manufacture in a large area, and the light-cured picture reprinting is difficult to produce.

Description

Technical Field

[0001] The utility model relates to the technical field of moth-eye membranes, in particular to a moth-eye membrane. Background Art

[0002] Existing moth-eye structures are increasingly being used for high light transmittance, low reflection, and low surface energy self-cleaning. Nano-imprinting is the primary production process, but the main challenge is the difficulty in preparing nanostructured molds.

[0003] Patent No. CN104583813A proposes a moth-eye film, which forms a flat film and is formed from a resin composition having a contact angle greater than 5° and less than 31.3° when a water droplet is dropped on the surface of the flat film and measured 100 milliseconds later.

[0004] The application of biomimetic moth-eye films offers low-reflection, high-transmittance optical properties, as well as self-cleaning properties at high droplet angles. This is primarily due to the moth-eye's nanoscale, high-aspect-ratio, continuous raised microstructure. However, the scale and shape of these microstructures make large-scale mold production extremely difficult, and photocurable printing is also difficult to produce. Currently, no effective solutions have been proposed to address these issues. Utility Model Content

[0005] Purpose of the utility model: to provide a moth eye film to at least solve one of the problems existing in the above-mentioned prior art.

[0006] Technical solution: A moth-eye film, comprising: a substrate layer; a resin mixture layer coated on the substrate layer; and a plurality of nanomagnetic rods, at least partially disposed in the resin mixture layer; wherein the plurality of nanomagnetic rods are arranged at intervals on one side of the substrate layer in a preset direction, and the plurality of nanomagnetic rods are arranged non-horizontally.

[0007] Preferably, the diameter of the nanomagnetic rod is 50-500 nm, and the diameter is 1 / 1-1 / 100 of its length.

[0008] Preferably, the preset direction is perpendicular to the direction of the substrate layer, so that a plurality of the nanomagnetic rods are arranged in a standing position.

[0009] Preferably, the preset direction is a preset angle direction between the nanomagnetic rods and the normal line of the substrate layer, so that a plurality of the nanomagnetic rods form a standing arrangement within the preset angle range.

[0010] Preferably, the preset angle is adjusted by a magnetic field arranged along the thickness direction of the substrate layer and relatively on both sides of the substrate layer; wherein the preset angle is ±60°.

[0011] Preferably, the resin mixed layer comprises: a plurality of the nanomagnetic rods, an adhesive, an oligomer, ethyl acetate, a photoinitiator and a leveling agent.

[0012] Preferably, the adhesive is cured by heating, ultraviolet light or electron beam to form an adhesive layer to fix the bottoms of the plurality of nanomagnetic rods.

[0013] Preferably, the thickness of the resin mixed layer is smaller than the height of the nanomagnetic rods.

[0014] Preferably, the thickness of the resin mixed layer is 1 / 10-9 / 10 of the height of the nanomagnetic rods.

[0015] Preferably, the adhesive is one or more of acrylic resin, epoxy resin or polyurethane.

[0016] Preferably, the substrate layer is one of PET film, PVC film, EVA film, TPU film, PU film, PP film, PMMA film, PC film or PS film.

[0017] Beneficial effect: In the embodiment of the present application, a method of setting nano-magnetic rods in a preset direction is adopted. By arranging a number of the nano-magnetic rods at intervals on one side of the substrate layer according to the preset direction, and a number of the nano-magnetic rods are arranged non-horizontally, the purpose of forming a nano-high aspect ratio microstructure similar to a moth eye is achieved, thereby achieving the technical effect of a nano-moth eye structure with low reflection and high transmittance, and thus solving the technical problem that the moth eye has a nano-scale high aspect ratio continuous protruding microstructure, but the scale and appearance of this microstructure make it extremely difficult to produce a mold on a large area, and the photo-cured painting reproduction is difficult to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the moth-eye film coating state of the utility model;

[0019] Figure 2 It is a schematic diagram of the planar structure of the moth-eye membrane of the present utility model; and

[0020] Figure 3 This is a schematic diagram of the magnetic field movement of the moth-eye film of the present invention.

[0021] The accompanying drawings are:

[0022] 10. Base material layer;

[0023] 20. Resin mixed layer;

[0024] 30. Nanomagnetic rods. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] To better understand the present application, it is important to understand that when the projector is in use, ambient light such as external sunlight or lighting that enters the moth-eye membrane from above is absorbed by the black light-absorbing layer of the screen microstructure, while the projected image that enters the moth-eye membrane from below is reflected to the viewer's eyes through the reflective layer of the screen microstructure, achieving a better viewing effect.

[0030] like Figure 1-3 As shown, the present application relates to a moth eye film and a method for preparing the same. Figure 2 As shown, the moth-eye film includes a substrate layer 10. The substrate layer 10 is a basic material layer that can achieve good support effects. At the same time, it can also cooperate with other components to achieve multiple functions. Of course, the substrate layer 10 is also the base layer.

[0031] Preferably, the substrate layer 10 is one of PET film, PVC film, EVA film, TPU film, PU film, PP film, PMMA film, PC film, or PS film. These materials have excellent mechanical properties, transparency, and heat resistance. As the primary substrate layer 1010 in the moth-eye film, they provide strength and stability while maintaining transparency. Furthermore, they offer a variety of materials to choose from, enabling flexible use.

[0032] Furthermore, the substrate layer 10 is formed of a light-transmitting material. The desired substrate layer 10 can be selected according to actual use requirements. For example, light-transmitting materials include but are not limited to: polyester film (PET). PET film has good optical transparency and mechanical strength and is suitable as the substrate layer 1010. Polycarbonate (PC). PC material has excellent heat resistance and impact resistance and is also commonly used in applications requiring light transmittance. Polymethyl methacrylate (PMMA): PMMA is a common organic glass with good light transmittance and is widely used in the optical field.

[0033] The resin mixed layer 20 is coated on the substrate layer 10 . By coating the resin mixed layer 20 on the upper surface of the substrate layer 10 , a uniform covering effect can be achieved, thereby ensuring the uniform arrangement of the subsequent nano-magnetic rods 30 .

[0034] Several nano-magnetic rods 30 are at least partially disposed in the resin mixed layer 20 , which can achieve a good accommodation effect for the several nano-magnetic rods 30 , thereby providing a guarantee for subsequent fixation; at the same time, the use of the nano-magnetic rods 30 can ensure a good magnetic induction effect.

[0035] The plurality of nanomagnetic rods 30 are spaced apart on one side of the substrate layer 10 in a predetermined direction, and the plurality of nanomagnetic rods 30 are arranged non-horizontally, so as to achieve low reflectivity and high light transmittance in the moth-eye film. By spacing the plurality of nanomagnetic rods 30 on the upper surface of the substrate layer 10 in a predetermined direction and adopting a non-horizontal arrangement, good light transmission or penetration between adjacent nanomagnetic rods 30 can be ensured, thereby achieving low reflectivity and high light transmittance in the moth-eye film.

[0036] In the present application, the upper surface of the substrate layer 10 is the light emitting surface, which can achieve a good light emitting effect.

[0037] Preferably, a plurality of the nanomagnetic rods 30 are arranged in an array with unequal intervals in a preset direction on one side of the substrate layer 10, and light can pass through between adjacent nanomagnetic rods 30, so that the moth-eye film has low reflection and high transmittance.

[0038] From the above description, it can be seen that this application achieves the following technical effects:

[0039] In the embodiment of the present application, a method of setting nano-magnetic rods 30 in a preset direction is adopted. By arranging a number of the nano-magnetic rods 30 at intervals on one side of the substrate layer 10 according to the preset direction, and a number of the nano-magnetic rods 30 are arranged non-horizontally, the purpose of forming a nano-high aspect ratio microstructure similar to a moth eye is achieved, thereby achieving the technical effect of a nano-moth eye structure with low reflection and high transmittance, and further solving the technical problem that the moth eye has a nano-scale high aspect ratio continuous raised microstructure, but the scale and appearance of this microstructure make it extremely difficult to produce a mold on a large area, and the photo-cured painting reproduction is difficult to produce.

[0040] Furthermore, the diameter of the nanomagnetic rod 30 is 50-500 nm, and the diameter is 1 / 1-1 / 100 of its length. It is understood that by setting the length and diameter of the nanomagnetic rod 30 within the above range, a good magnetic induction effect can be ensured, thereby ensuring that the nanomagnetic rod 30 is in a preset direction.

[0041] Furthermore, the preset direction is perpendicular to the substrate layer 10, so that the plurality of nanomagnetic rods 30 are arranged in a standing position. It is understood that arranging the nanomagnetic rods 30 in a spaced manner along a horizontal direction perpendicular to the substrate layer 10 can ensure a good array arrangement effect, thereby obtaining the desired state of the nanomagnetic rods 30.

[0042] Furthermore, the preset direction is a preset angle direction between the nanomagnetic rods 30 and the normal line of the substrate layer 10 , so that a plurality of the nanomagnetic rods 30 are arranged in a standing position within the preset angle range.

[0043] Furthermore, the preset angle is adjusted by magnetic fields disposed along the thickness of the substrate layer 10 and on opposite sides of the substrate layer 10; the preset angle is ±60°. It is understood that by positioning the nanomagnetic rods 30 within this angle range, the positioning requirements for the nanomagnetic rods 30 can be reduced, thereby reducing the difficulty of the production process; at the same time, good optical performance can be ensured. Preferably, the preset angle is ±5°.

[0044] It should be noted that based on the principle that like poles repel and opposite poles attract, when the same poles of two magnets approach each other, due to the mutual repulsion of the magnetic field, a force will be exerted to separate them, that is, like poles repel each other. This is because the magnetic fields in the magnets have the same direction, causing repulsion between them. On the contrary, when magnets of different polarities are close to each other, they will be attracted to each other, that is, opposite poles attract each other. This is because the magnetic fields in the magnets have opposite directions, causing mutual attraction between them. In this application, the above principle is used to adjust the direction of several nanomagnetic rods.

[0045] Furthermore, the resin mixed layer 20 includes: a plurality of the nanomagnetic rods 30, an adhesive, an oligomer, ethyl acetate, a photoinitiator, and a leveling agent. It is understood that by using the above-mentioned multiple materials, a good light-curing effect can be achieved while also being easy to implement and operate.

[0046] Furthermore, the adhesive is cured by heating, ultraviolet light, or electron beam to form an adhesive layer to secure the bases of the plurality of nanomagnetic rods 30. It will be appreciated that the availability of a variety of curing methods facilitates operation while also effectively securing the bases of the nanomagnetic rods 30, thereby preventing displacement of the nanomagnetic rods 30 and thereby affecting the stability of the optical performance.

[0047] Furthermore, the thickness of the resin mixed layer 20 is smaller than the height of the nanomagnetic rod 30. It can be understood that this can ensure good optical properties of the nanomagnetic rod 30 and also ensure good fixing effect of the nanomagnetic rod 30.

[0048] Furthermore, the thickness of the resin mixed layer 20 is 1 / 10-9 / 10 of the height of the nanomagnetic rods 30. It is understood that by limiting the thickness of the resin mixed layer 20 and the height of the nanomagnetic rods 30 to the above ranges, a variety of ratios can be selected, thereby adapting to the needs of various usage scenarios.

[0049] Furthermore, the adhesive is one or more of acrylic resin, epoxy resin or polyurethane. It is understandable that a variety of materials can be selected to achieve the effect of flexible use.

[0050] Of course, acrylic resin has the effects of fast curing speed, good UV resistance and weather resistance; epoxy resin has the effects of high strength, high adhesion, good chemical resistance and heat resistance; polyurethane has good flexibility, good impact resistance and wear resistance.

[0051] Preferably, the diameter of the nanomagnetic rod 30 is proportional to the magnetic field strength. It is understandable that setting the magnetic field strength to be proportional to the diameter of the nanomagnetic rod 30 can achieve a good orientation effect on the nanomagnetic rod 30.

[0052] The specific examples are further described below:

[0053] By mixing different proportions of nanomagnetic rods 30 and magnetic field strength in the resin, a moth-eye mold is obtained after coating and curing, and the mold is cast on the base film to obtain the following embodiment;

[0054] The reflectance at 550nm of different comparison samples was tested using a Trixon TS8296 spectrophotometer.

[0055] The light transmittance was tested using a NDH7000 haze meter from Nippon Denshoku.

[0056] Example 1

[0057] The diameter of the nanomagnetic rod 30 is 150 nm, the length of the nanomagnetic rod 30 is 1000 nm, and the magnetic field strength is 0.01 T.

[0058] At this time, after testing, the results of the moth-eye film were: reflectivity was 2.5% and transmittance was 94.8%.

[0059] Example 2

[0060] The difference between Example 2 and Example 1 is that the magnetic field strength used is 0.1T.

[0061] At this time, after testing, the results of the moth-eye film were: reflectivity was 1.6% and transmittance was 95.2%.

[0062] Example 3

[0063] The difference between Example 3 and Example 1 is that the magnetic field strength used is 1T.

[0064] At this time, after testing, the results of the moth-eye film were: reflectivity was 0.7% and transmittance was 97.9%.

[0065] Example 4

[0066] The difference between Example 4 and Example 1 is that the diameter of the nanomagnetic rod 30 is 300 nm, the length of the nanomagnetic rod 30 is 3000 nm, and the magnetic field strength is 2T.

[0067] At this time, after testing, the moth-eye film showed a reflectivity of 1.5% and a transmittance of 96.2%.

[0068] Example 5

[0069] The difference between Example 5 and Example 1 is that the diameter of the nanomagnetic rod 30 is 500 nm, the length of the nanomagnetic rod 30 is 5000 nm, and the magnetic field strength is 3 T.

[0070] At this time, after testing, the results of the moth-eye film were: reflectivity was 2.3% and transmittance was 93.5%.

[0071] Comparative Example 1

[0072] The difference between Comparative Example 1 and Example 1 is that the flat coating sample does not contain the nanomagnetic rods 30 .

[0073] At this time, after testing, the results of the moth-eye film were: reflectivity was 4.1% and transmittance was 90.4%.

[0074] Comparative Example 2

[0075] The difference between Comparative Example 2 and Example 1 is that the diameter of the nanomagnetic rod 30 is 500 nm, the length of the nanomagnetic rod 30 is 3000 nm, and the magnetic field strength is 2T.

[0076] At this time, after testing, the results of the moth-eye film were: reflectivity was 3.9% and transmittance was 90.8%.

[0077] The results of each embodiment and comparative example are shown in Table 1:

[0078] Table 1

[0079]

[0080]

[0081] From the above test results we can see that:

[0082] 1. By adding nanomagnetic rods 30 of different diameters and lengths and applying corresponding magnetic field strengths, the moth-eye film can have low reflection and high light transmittance effects.

[0083] 2. It can be seen from Examples 1-3 and Comparison 1 that, under the premise that other parameters remain unchanged, as the magnetic field intensity continues to increase, the reflectivity of the moth-eye film continues to decrease, and the transmittance continues to increase.

[0084] 3. It can be seen from Examples 4-5 and Comparisons 2-3 that as the size of the nanomagnetic rod 30 continues to increase, the applied magnetic field strength also continues to increase, but the corresponding moth-eye film reflectivity continues to increase and the transmittance continues to decrease.

[0085] like Figure 1-3 As shown, the present application also relates to a method for preparing a moth eye membrane, comprising the following steps:

[0086] S101, fully stirring and uniformly mixing the photocurable material and the nanomagnetic rods 30 in a preset ratio to obtain a photocurable coating mixture for imprinting the moth-eye film microstructure;

[0087] S102, coating the light-curing coating mixture on the substrate layer 10;

[0088] S103, applying a magnetic field of preset magnetic force on the upper and lower sides of the substrate layer 10 after coating, and adjusting the magnetic field strength so that the nanomagnetic rods 30 are oriented along the direction of the magnetic field, and finally form a standing arrangement perpendicular to the direction of the substrate layer 10;

[0089] S104, curing by heating, ultraviolet light or electron beam curing, so that the adhesive is cured and the bottom of the nanomagnetic rods 30 is fixed in the adhesive layer to form an array to obtain a moth-eye-like nano-high aspect ratio microstructure;

[0090] S105. The product after curing can be used directly as a moth-eye film, or a moth-eye structure mold can be reproduced through electroforming, or the moth-eye structure can be directly replicated into a moth-eye film through nanoimprinting and other technologies.

[0091] Specifically, S101: fully stirring and uniformly mixing the photocurable material and the nanomagnetic rods 30 in a preset ratio to obtain a photocurable coating mixture for imprinting the moth-eye film microstructure;

[0092] Weighing and Preparation: Accurately weigh the light-curing material and the nanomagnetic rods 30 and prepare them according to the preset ratio. Make sure to use a high-precision balance to avoid errors.

[0093] Pretreatment: If the nanomagnetic rods 30 are agglomerated, they may be subjected to ultrasonic treatment or mechanical stirring to disperse the nanoparticles.

[0094] Mixing container selection: Choose a suitable mixing container made of a material that is chemically resistant and does not react with the light-curing material.

[0095] Stirring: Under a constant temperature, use a high-speed stirrer or planetary mixer to thoroughly stir the photocurable material and the nanomagnetic rods 30. The stirring time is adjusted based on the material viscosity and particle dispersion, and is typically 30 minutes to 1 hour, preferably 30 minutes.

[0096] Homogeneity check: Take a sample to check the homogeneity of the mixture to ensure that the nanomagnetic rods 30 are evenly distributed. If uneven distribution is found, continue stirring or perform ultrasonic treatment.

[0097] S102: applying the photocurable coating mixture onto the substrate layer 10;

[0098] Preparation of the substrate layer 10: The substrate layer 10 is subjected to surface treatment, such as cleaning, drying or surface activation treatment (such as plasma treatment), to improve the adhesion of the photocurable coating.

[0099] Coating equipment selection: Use appropriate coating equipment, such as a spin coater, a knife coater, or a spray coater, according to the characteristics of the substrate layer 10 and the coating thickness requirements.

[0100] Coating operation: The photocurable coating mixture is evenly coated on the substrate layer 10, and the coating thickness is controlled to be uniform. A spin coating method can be used, and the appropriate spin speed and time are set to achieve the desired film thickness.

[0101] Thickness control: Use a thickness gauge to check the thickness of the film after coating to ensure it meets the design requirements. If the thickness is uneven, adjust the coating parameters or re-coat.

[0102] S103: applying a magnetic field of preset magnetic force on the upper and lower sides of the substrate layer 10 after coating, and adjusting the magnetic field strength so that the nanomagnetic rods 30 are oriented along the direction of the magnetic field, and finally formed into a standing arrangement on one side of the substrate layer 10;

[0103] Installation of magnetic field equipment: Magnetic field generating equipment is installed on the upper and lower sides of the substrate layer 10 after coating to ensure that the equipment is stable and reliable.

[0104] Magnetic field parameter setting: The magnetic field strength and direction are set according to the magnetism and size of the nanomagnetic rod 30. The magnetic field parameters can be precisely adjusted by a computer-controlled electromagnet system.

[0105] Applying a magnetic field: starting a magnetic field and applying a magnetic field of a preset magnetic force. Real-time monitoring of the alignment of the nanomagnetic rods 30 in the coating can be performed by using an optical microscope or other detection means to observe the alignment of the nanomagnetic rods 30.

[0106] Optimization and adjustment: By adjusting the intensity and direction of the magnetic field, the arrangement effect of the nanomagnetic rods 30 is optimized to ensure that the nanomagnetic rods 30 are arranged perpendicular to the direction of the substrate layer 10.

[0107] S104: Curing the adhesive by heating, ultraviolet light or electron beam curing, so that the adhesive is cured and the bottom of the nanomagnetic rods 30 is fixed in the adhesive layer to form an array to obtain a moth-eye-like nano-high aspect ratio microstructure;

[0108] Curing method selection: According to the characteristics of the light-curing coating, select the appropriate curing method, such as but not limited to: heating, ultraviolet or electron beam curing.

[0109] Curing equipment preparation: Check the performance and parameter settings of the curing equipment to ensure that the equipment is working properly. Heat curing requires a constant temperature box or hot air circulation oven, UV curing requires a UV lamp, and electron beam curing requires an electron beam generator.

[0110] Curing: After coating and applying a magnetic field, the substrate layer 10 is placed in a curing device and cured according to the set curing conditions. The curing time and temperature are controlled to ensure that the coating is completely cured.

[0111] Fixing the nano-magnetic rods 30: During the curing process, the bottom of the nano-magnetic rods 30 will be fixed in the cured light-curing coating layer to form a stable vertical arrangement structure.

[0112] Quality inspection: After curing is completed, use a microscope or other inspection equipment to check the formation of the nanostructure to ensure that it meets the design requirements.

[0113] S105: The cured product can be used directly as a moth-eye film, or a moth-eye structure mold can be made by electroforming, or the moth-eye structure can be directly replicated into a moth-eye film by nanoimprinting or other technologies;

[0114] Direct use: After curing, the product can be used directly as a moth-eye film for optical performance testing and application verification.

[0115] Mold Reproduction: If a moth-eye structure mold needs to be reproduced through electroforming, the cured nanostructure can be used as a master mold for electroforming replication. Controlling electroforming process parameters ensures mold replication accuracy and quality.

[0116] Nanoimprinting: Using nanoimprinting technology, the moth-eye structure is replicated onto other substrates. Selecting appropriate imprinting equipment and process parameters ensures high-quality imprinting.

[0117] Final product testing: The final moth-eye film is tested for optical performance, structural accuracy, and surface quality to ensure that the product meets design requirements.

[0118] Furthermore, the components of the photocurable coating mixture include: 10-25% by weight of nanomagnetic rods, 10-35% by weight of acrylic resin, 5-15% by weight of oligomer, 20-40% by weight of ethyl acetate, 0.5-2% by weight of photoinitiator, and 0.1-0.5% by weight of leveling agent.

[0119] Specifically, nanomagnetic rods (10-25% by weight): Nanomagnetic rods are the primary functional material in the coating. Applying a magnetic field aligns them within the coating, forming a microstructure with unique optical properties. These rods are typically made from materials such as ferrite, cobalt, and nickel, and possess strong magnetism and excellent dispersibility. The size and shape of the nanomagnetic rods influence their distribution and alignment within the coating.

[0120] Acrylic resin (10-35% by weight): Acrylic resin is the base material for UV-curable coatings, providing the coating's viscosity and mechanical properties. During the UV-curing process, acrylic resin solidifies through a polymerization reaction initiated by a photoinitiator. Acrylic resins offer excellent weather resistance, chemical resistance, and transparency, making them suitable for a variety of substrates. Different types of acrylic resins (such as methacrylates and ethylacrylates) can be used to adjust the coating's properties.

[0121] Oligomers (5-15% by weight): Oligomers act as reactive diluents in UV-curable coatings, reducing the coating's viscosity and improving its coatability. They also cross-link with the acrylic resin during the curing process, enhancing the properties of the cured film. Commonly used oligomers include polyethylene glycol diacrylate (PEGDA) and polypropylene glycol diacrylate (PPGDA), which have low molecular weights and high reactivity.

[0122] Ethyl acetate (20-40% by weight): Ethyl acetate is a solvent for UV-curable coatings. It dissolves acrylic resins and oligomers, forming a uniform solution for easy application. After application, the ethyl acetate evaporates, leaving a uniform coating. Ethyl acetate is a commonly used organic solvent due to its excellent volatility, solvency, and low toxicity.

[0123] Photoinitiator (0.5-2% by weight): Photoinitiators decompose under UV light to produce free radicals, which initiate polymerization of the acrylic resin and oligomers, achieving rapid curing of the coating. Commonly used photoinitiators include benzophenone (Benzoin) and 2-hydroxy-2-methyl-1-phenyl-1-propanone (Darocur 1173), which are highly photosensitive and reactive.

[0124] Leveling agent (0.1-0.5% by weight): Leveling agents improve the leveling properties of the coating, preventing surface defects such as orange peel and bubbles during the coating process, and ensuring a smooth and uniform coating. For example, commonly used leveling agents include polysiloxanes (such as BYK-310) and fluorides (such as Zonyl), which have good surface activity and leveling effects.

[0125] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. Moth eye membrane, characterized in that include: a substrate layer (10); A resin mixed layer (20) is coated on the base material layer (10); and A plurality of nanomagnetic rods (30), at least partially disposed in the resin mixed layer (20); Wherein, a plurality of the nanomagnetic rods (30) are arranged at intervals on one side of the substrate layer (10) in a preset direction, and the plurality of the nanomagnetic rods (30) are arranged non-horizontally.

2. The moth-eye film according to claim 1, wherein The diameter of the nanomagnetic rod (30) is 50-500 nm, and the diameter is 1 / 1-1 / 100 of its length.

3. The moth-eye film according to claim 1, wherein The preset direction is perpendicular to the direction of the substrate layer (10), so that a plurality of the nanomagnetic rods (30) are arranged in a standing position.

4. The moth-eye film according to claim 1, wherein: The preset direction is a preset angle direction between the nanomagnetic rods (30) and the normal line of the substrate layer (10), so that a plurality of the nanomagnetic rods (30) form a standing arrangement within the preset angle range.

5. The moth-eye film according to claim 4, characterized in that The preset angle is adjusted by a magnetic field arranged along the thickness direction of the substrate layer (10) and relatively on both sides of the substrate layer (10); wherein the preset angle is ±60°.

6. The moth-eye film according to claim 1, wherein: The thickness of the resin mixed layer (20) is smaller than the height of the nanomagnetic rod (30).

7. The moth-eye film according to claim 1, wherein The thickness of the resin mixed layer (20) is 1 / 10-9 / 10 of the height of the nanomagnetic rod (30).

8. The moth-eye film according to claim 1, wherein The substrate layer (10) is one of a PET film, a PVC film, an EVA film, a TPU film, a PU film, a PP film, a PMMA film, a PC film or a PS film.

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