A molding process for micro-nano texture composite

Abstract

The present invention discloses a molded micro-nano texture composite process, which relates to the field of micro-nano composite structure technology and includes the following steps: applying a first glue layer on a first template, and forming a first micro-nano glue structure after the first glue layer is cured; applying a second glue layer between a first substrate and a second template, and adhering the second glue layer to the first substrate after curing, thereby forming a second micro-nano glue structure on the first substrate; molding the first template and the first substrate using a molding mechanism to bond the first micro-nano glue structure to the second micro-nano glue structure; maintaining pressure and cooling, removing the first template, and forming a micro-nano composite structure on the first substrate; and finally, performing transfer printing. The present invention adheres the first micro-nano glue structure to the second micro-nano glue structure by heating and pressurizing, thereby forming a new micro-nano composite structure. The new micro-nano composite structure has the properties of the above two micro-nano structures, and the molding process is easy to control and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of micro-nano composite structures, in particular to a molded micro-nano texture composite process. Background Art

[0002] Nanostructures generally refer to tiny structures with a size below 100 nm. They are systems constructed or assembled according to specific rules based on nanoscale material units. These systems include one-, two-, and three-dimensional systems. These units include nanoparticles, stable clusters or artificial superatoms, nanotubes, nanorods, nanowires, and nanoscale pores.

[0003] Nanomaterial multifunctional plastics made of nanomaterials have antibacterial, deodorizing, anti-corrosion, anti-aging, and UV resistance. By combining different micro-nano structures, they can meet various requirements such as appearance decoration and functionality.

[0004] Existing methods for processing micro-nano composite structures fall into four categories: photolithography, laser processing, molecular self-assembly, and electron beam / ion beam etching. Photolithography uses contact exposure, with a maximum resolution of 1μm and the largest processing area, making it difficult to form nanostructure composites on microstructures. Laser processing involves two exposures: the first to create the microstructure, and then to form the nanostructure on the microstructure. This process is complex and requires precise control of exposure parameters. While molecular self-assembly can achieve one-step formation of micro-nano composite structures, the processing is constrained by multiple factors. It requires stringent material selection and precise control of molecular self-assembly conditions, and the resulting microstructures are not highly reproducible. Electron beam / ion beam etching offers the highest resolution, requires no mask, and offers a high degree of automation. However, its processing speed is slow, the cost is high, and it is unsuitable for mass production.

[0005] Chinese patent application 201610218107.2 discloses a method of generating metal micro-nanostructures by deforming memory polymer materials. However, the micro-nanostructures cannot adhere to the substrate, and multi-level microstructures cannot be manufactured on a large scale and conveniently.

[0006] In summary, although the above processing methods can produce micro-nano composite structures, there are problems with processing complexity and high difficulty coefficient, which leads to serious limitations in the application of micro-nano composite structures in industrial production. Summary of the Invention

[0007] The purpose of the present invention is to provide a molded micro-nano texture composite process to solve the problems existing in the prior art. A first micro-nano glue structure is adhered to a second micro-nano glue structure by heating and pressurizing, thereby forming a new micro-nano composite structure. Compared with the traditional micro-nano structure composite process, the new micro-nano composite structure is simpler. Only by molding and curing two glue layers with micro-nano structures, the composite of two micro-nano structures can be achieved. The molding process is easy to control and the cost is low.

[0008] To achieve the above object, the present invention provides the following solution: The present invention provides a molded micro-nano texture composite process, comprising the following steps:

[0009] 1) coating a first glue layer having release ability on a first template having a first micro-nano structure, and curing the first glue layer to form a first micro-nano glue structure on the first template;

[0010] 2) coating a second adhesive layer with release properties between the first substrate and the second template having the second micro-nano structure; after the second adhesive layer is cured, adhering it to the first substrate; separating the second template from the second adhesive layer, thereby forming the second micro-nano adhesive structure on the first substrate;

[0011] 3) fixing the first template and the first substrate to the upper and lower molds of the molding mechanism, respectively, with the first micro-nano glue structure facing the second micro-nano glue structure; evacuating the chambers of the upper and lower molds, and heating and pressurizing the upper and lower molds to bond the first micro-nano glue structure to the second micro-nano glue structure; maintaining the pressure and cooling, and removing the first template to form a micro-nano composite structure on the first substrate;

[0012] 4) A third glue layer with release ability is coated between the second substrate and the micro-nano composite structure. After the third glue layer is cured, it is adhered to the second substrate, and the micro-nano composite structure and the third glue layer are separated, forming a composite micro-nano texture structure on the second substrate.

[0013] Preferably, in step 3), the first template and the first substrate are both identified and captured by CDD visual image detection equipment to align the positioning eyes, and then are fixed on the upper mold and the lower mold respectively.

[0014] Preferably, the thickness of the first glue layer, the second glue layer and the third glue layer are all 8 μm to 12 μm.

[0015] Preferably, the first glue layer, the second glue layer and the third glue layer are all applied by roller coating or the like.

[0016] Preferably, the first glue layer and the third glue layer are both UV glue, which is cured after being irradiated with ultraviolet light.

[0017] Preferably, the second glue layer is thermosetting UV glue.

[0018] Preferably, the first substrate is a PET substrate.

[0019] Preferably, the first micro-nano structure has an antibacterial function, and the second micro-nano structure has a leather morphology.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The present invention combines a first micro-nano glue structure with a functional micro-nano structure with a second micro-nano glue structure through heating and pressurization, thereby forming a new micro-nano composite structure that possesses the properties of the two aforementioned micro-nano structures. Furthermore, the molding process employed in the present invention is simpler than conventional micro-nano composite processes. The two micro-nano structures can be composited simply by molding and curing the two micro-nano glue layers. This process is easily controlled, inexpensive, and readily applicable for widespread adoption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is a schematic structural diagram of the first micro-nano glue structure and the first template;

[0024] Figure 2 is a schematic structural diagram of the second micro-nano glue structure, the second template and the first substrate;

[0025] Figure 3 Schematic diagram of the molding of the first template and the second template;

[0026] Figure 4 is a schematic structural diagram of the micro-nano composite structure and the first substrate;

[0027] Figure 5 for Figure 4 A partial enlarged view of

[0028] Among them, 1. first template; 2. first micro-nano glue structure; 3. second template; 4. first substrate; 5. second micro-nano glue structure. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a molded micro-nano texture composite process to solve the problems existing in the prior art. A first micro-nano glue structure is adhered to a second micro-nano glue structure by heating and pressurizing, thereby forming a new micro-nano composite structure. Compared with the traditional micro-nano structure composite process, the new micro-nano composite structure is simpler. Only by molding and curing two glue layers with micro-nano structures, the composite of two micro-nano structures can be achieved. The molding process is easy to control and the cost is low.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 5 As shown, this embodiment provides a molded micro-nano texture composite process, including the following steps:

[0033] 1) coating a first glue layer with release ability on a first template 1 having a first micro-nano structure, and curing the first glue layer on the first template 1 to form a first micro-nano glue structure 2; at this time, the first micro-nano glue structure 2 is still attached to the first template 1 and has not separated from the first template 1;

[0034] 2) Coating a second adhesive layer with release properties on the second template 3, then bonding the first substrate 4 to the surface of the second adhesive layer. After the second adhesive layer is cured, it adheres to the first substrate 4. The first template 1 is then removed, forming a second micro-nano adhesive structure 5 on the first substrate 4.

[0035] 3) The first template 1 and the first substrate 4 are respectively fixed on the upper mold and the lower mold of the molding mechanism, the upper mold and the lower mold of the molding mechanism are located in a chamber that can be evacuated, and the first micro-nano glue structure 2 and the second micro-nano glue structure 5 are directly opposite; the chamber where the upper mold and the lower mold are located is evacuated, and the upper mold and the lower mold are heated and pressurized to bond the first micro-nano glue structure 2 and the second micro-nano glue structure 5. The evacuation is to ensure that there is no air between the two and they can be completely adhered, and the heating can improve the adhesion of the first micro-nano glue structure 2 and the second micro-nano glue structure 5; the pressure is maintained and cooled to avoid local glue loss due to inadequate adhesion; finally, the first template 1 is removed to form a micro-nano composite structure on the first substrate 4;

[0036] 4) A third glue layer with release ability is coated on the micro-nano composite structure of the first substrate 4, and then the second substrate is bonded to the surface of the second glue layer. After the third glue layer is cured, it is adhered to the second substrate, and the micro-nano composite structure is separated from the third glue layer, forming a composite micro-nano texture structure on the second substrate.

[0037] In this embodiment, a first micro-nano glue structure 2, which has a micro-nano structure with a specific function, is attached to a second micro-nano glue structure 5 through heating and pressurization, thereby forming a new micro-nano composite structure that possesses the properties of the two aforementioned micro-nano structures. Furthermore, the molding process in this embodiment is simpler than conventional micro-nano composite processes. The two micro-nano structures can be composited simply by molding and curing the two micro-nano glue layers. This makes the molding process easy to control, low-cost, and suitable for widespread adoption.

[0038] Furthermore, in step 3), the first template 1 and the first substrate 4 are both identified and captured by CDD visual image detection equipment to align the positioning eyes, and then fixed on the upper mold and the lower mold respectively.

[0039] Furthermore, in this embodiment, the first and third glue layers are both UV glues that cure upon exposure to ultraviolet light. The second glue layer is a thermosetting UV glue. When the mold is heated, the glue initially cures and acts as an adhesive, ensuring a secure bond to the first micro-nano glue structure 2. When UV (ultraviolet) light dominates, the release agent activates, allowing the second micro-nano glue structure 5 to be smoothly released from the second template 3.

[0040] The thickness of the first glue layer, the second glue layer and the third glue layer are all 8μm to 12μm. Thicker or thinner sizes will affect the lamination effect. The first glue layer, the second glue layer and the third glue layer are all applied by roller coating or other methods. Generally, the glue thickness is controlled by adjusting the roller pressure. The greater the roller pressure, the thicker the glue.

[0041] Furthermore, in this embodiment, the first substrate 4 is a PET substrate; the first micro-nano structure has an antibacterial function, and the second micro-nano structure has a leather morphology. Those skilled in the art can select the desired leather morphology according to needs.

[0042] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0043] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A molded micro-nano texture composite process, characterized in that: The following steps are involved: 1) coating a first glue layer having release ability on a first template having a first micro-nano structure, and curing the first glue layer to form a first micro-nano glue structure on the first template; 2) coating a second adhesive layer with release properties between the first substrate and the second template having the second micro-nano structure; after the second adhesive layer is cured, adhering it to the first substrate; separating the second template from the second adhesive layer, thereby forming the second micro-nano adhesive structure on the first substrate; 3) fixing the first template and the first substrate to the upper and lower molds of the molding mechanism, respectively, with the first micro-nano glue structure facing the second micro-nano glue structure; evacuating the chambers of the upper and lower molds, and heating and pressurizing the upper and lower molds to bond the first micro-nano glue structure to the second micro-nano glue structure; maintaining the pressure and cooling, and removing the first template to form a micro-nano composite structure on the first substrate; 4) coating a third adhesive layer with release ability between the second substrate and the micro-nano composite structure; after the third adhesive layer is cured, adhering it to the second substrate, separating the micro-nano composite structure from the third adhesive layer, and forming a composite micro-nano texture structure on the second substrate; The first glue layer and the third glue layer are both UV glue, which is cured after being irradiated with ultraviolet light; The second glue layer is a thermosetting UV glue.

2. The molded micro-nano texture composite process according to claim 1, characterized in that: In step 3), the first template and the first substrate are both identified and captured by CDD visual image detection equipment to align the positioning eyes, and then fixed on the upper mold and the lower mold respectively.

3. The molded micro-nano texture composite process according to claim 1, characterized in that: The thickness of the first glue layer, the second glue layer and the third glue layer are all 8 μm to 12 μm.

4. The molded micro-nano texture composite process according to claim 3, characterized in that: The first glue layer, the second glue layer and the third glue layer are all applied by roller coating.

5. The molded micro-nano texture composite process according to claim 1, characterized in that: The first substrate is a PET substrate.

6. The molded micro-nano texture composite process according to claim 1, characterized in that: The first micro-nano structure has an antibacterial function, and the second micro-nano structure has a leather morphology.

Images