Thermal insulation and reflective film

Abstract

This utility model relates to the field of reflective film technology and discloses a thermal insulation reflective film, comprising, from top to bottom: a surface structure, which is a composite layer of polymethyl methacrylate microspheres, glass microspheres, and PET film; a triangular aluminized PET reflective layer, which is an aluminized PET layer with a micron-level triangular structure; an EPE adhesive base layer, which is tightly bonded to the triangular aluminized PET reflective layer; an adhesive layer, used for bonding and fixing the film to the object to be protected or warned; and a release film, which covers the surface of the adhesive layer. This thermal insulation reflective film integrates thermal insulation and high reflectivity, ensuring efficient thermal insulation while also possessing anti-fouling and wear-resistant properties. Furthermore, it increases light reflection efficiency under micron-level triangular reflection.

Description

Technical Field

[0001] This utility model relates to the field of reflective film technology, specifically to thermal insulation reflective films. Background Technology

[0002] There are two main types of common solutions in the field of reflective materials: one is metal reflective film, which has the advantages of simple preparation process and wide working wavelength range, but has the disadvantages of large light loss and difficulty in further improving reflectivity; the other is reflective material with glass microspheres as the main composite form. However, facilities such as reflective signs using this type of material are prone to producing glaring reflected light to observers (such as drivers) at specific angles under high light, causing observers to be temporarily unable to see the road conditions, increasing the safety risks such as traffic accidents.

[0003] Meanwhile, in the field of social infrastructure and safety warnings, existing warning methods have obvious shortcomings: traditional warning lines and signs not only occupy space, but the warning effect of paint is also limited; in scenarios requiring efficient thermal insulation, such as construction sites and hazardous areas in factories in cold weather, there is a lack of facilities that combine thermal insulation and prominent warning functions; especially for facilities with a wide range and long length (such as heating pipelines), existing warning solutions have problems of low warning efficiency and high cost in achieving warning effects, which cannot meet people's increasing requirements for life health and safety and social infrastructure. Therefore, thermal insulation reflective films are proposed to solve the above-mentioned problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a thermal insulation and reflective film that integrates thermal insulation and high reflectivity. While ensuring efficient heat preservation, it also possesses anti-fouling and wear-resistant properties. Under micron-level triangular reflection, it increases light reflection efficiency. Furthermore, PMMA microspheres diffuse light, effectively atomizing it and minimizing glare. This invention solves two common problems in the field of reflective materials: one is metal reflective films, which, while simple to manufacture and with a wide operating wavelength range, suffer from high light loss and difficulty in further improving reflectivity; the other is reflective materials primarily composed of glass microspheres. However, reflective signs and other facilities using this type of material can easily produce glare at specific angles under high light, causing temporary obstruction of road conditions and increasing the risk of traffic accidents.

[0005] (II) Technical Solution The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a heat-insulating and heat-reflective film, comprising, from top to bottom: a surface structure, wherein the surface structure is a composite layer of PMMA microspheres, glass microspheres and PET film; a triangular aluminized PET reflective layer, wherein the triangular aluminized PET reflective layer is an aluminized PET layer with a micron-level triangular structure; an EPE adhesive base layer, wherein the EPE adhesive base layer is tightly bonded to the triangular aluminized PET reflective layer; an adhesive layer, used for bonding and fixing the film to the object to be protected or warned; and a release film, wherein the release film covers the surface of the adhesive layer.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, in the surface structure, PMMA microspheres are uniformly dispersed within the PET coating, which diffuses incident light uniformly to reduce the glare of strong light; the glass microspheres are embedded in the PET coating, which enhance the light reflection effect of the surface structure through mirror reflection.

[0008] Furthermore, the triangular aluminum-plated PET reflective layer expands the reflection range by coordinating the three reflective surfaces of the triangular cavity to reflect the incident light from multiple angles. The aluminum layer is vacuum-plated onto the surface of the triangular cavity.

[0009] Furthermore, the EPE adhesive base layer forms a thermal insulation barrier through its own closed-cell foam structure, which plays a role in blocking heat transfer and providing thermal insulation. The release film surface is subjected to release treatment.

[0010] A heat pipe, characterized in that: it includes a heat pipe body, an installation shell is fixedly connected to the outer periphery of one end of the heat pipe body, an installation sleeve that can be inserted into the inner side of the installation shell is fixedly connected to the outer periphery of the other end of the heat pipe body, a positioning block is fixedly connected to the outer side of the installation sleeve, and a snap-fit ​​component is provided on the inner side of the installation shell to fix the positioning block in the inner side of the positioning groove.

[0011] Furthermore, the number of positioning blocks is four, and the four positioning blocks are arranged in a circular array on the outside of the mounting sleeve. The positioning blocks are inserted into the inside of the positioning groove, and the cross-sectional shape of the positioning blocks is adapted to the cross-sectional shape of the positioning groove.

[0012] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​spring fixedly connected to the inner side of the mounting shell, a snap-fit ​​block fixedly connected to the other end of the snap-fit ​​spring, a snap-fit ​​rod fixedly connected to the other end of the snap-fit ​​block and passing through the inner side of the preset snap-fit ​​hole of the positioning block, and a push block that can drive the snap-fit ​​block to move. A sealing ring is fixedly connected to the outer side of the mounting sleeve, and a push hole is provided on the outer side of the mounting shell for the push block to move radially along the mounting shell.

[0013] Furthermore, a push spring is fixedly connected to the inner side of the positioning groove, and a push plate is fixedly connected to the other end of the push spring.

[0014] The beneficial effects of this utility model are: This thermal insulation and reflective film combines the light diffusion effect of PMMA microspheres in its surface structure with the specular reflection effect of glass microspheres, along with a multi-angle synergistic reflection design of a triangular aluminized PET reflective layer. The closed-cell foam structure of the EPE adhesive base layer, combined with the multi-layer structure, forms a thermal insulation barrier. The surface layer adopts a blended or laminated composite structure with tightly bonded layers, and the installation structure with adhesive layers and release film allows for convenient construction. It integrates thermal insulation and high reflectivity, ensuring efficient thermal insulation while also being stain-resistant and wear-resistant. Under the micron-level triangular reflection, it increases light reflection efficiency. In addition, the PMMA microspheres diffuse light, effectively atomizing it and minimizing glare from reflected light.

[0015] This thermal pipeline, through the plug-in connection of the mounting shell and mounting sleeve, combined with the precise positioning of the positioning block and positioning groove, and the quick fixing and release structure of the snap-fit ​​component, has the advantages of convenient and efficient installation, excellent sealing performance, strong adaptability and convenient maintenance, which greatly shortens the installation and disassembly time and reduces the construction difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the thermal pipeline body structure of this utility model; Figure 3 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 4 This is a connection diagram of the mounting sleeve and positioning block of this utility model; Figure 5 This is a connection diagram of the push spring and push plate of this utility model.

[0017] In the diagram: 1a, surface structure; 1b, triangular aluminized PET reflective layer; 1c, EPE adhesive base layer; 1d, adhesive layer; 1f, release film; 2, thermal pipe body; 3, mounting shell; 4, mounting sleeve; 5, positioning block; 6, positioning groove; 7, snap-fit ​​assembly; 71, snap-fit ​​spring; 72, snap-fit ​​block; 73, snap-fit ​​rod; 74, push block; 8, sealing ring; 9, push spring; 10, push plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1, by Figure 1 The present invention provides a heat-insulating and reflective film, comprising, from top to bottom: a surface structure 1a, which is a composite layer of polymethyl methacrylate (PMMA) microspheres, glass microspheres, and PET film; a triangular aluminized PET reflective layer 1b, which is an aluminized PET layer with a micron-scale triangular structure; an EPE adhesive base layer 1c, which is tightly bonded to the triangular aluminized PET reflective layer 1b; an adhesive layer 1d, used for bonding and fixing the film to the object to be protected or warned; and a release film 1f, which covers the surface of the adhesive layer 1d.

[0020] This layered structure design integrates multiple functions such as surface protection, light reflection, thermal insulation, and bonding. The layers work closely together, providing a basic structural support for subsequent application to objects to be protected or warned, and can simultaneously achieve the comprehensive effects of reflection, thermal insulation, heat insulation, and convenient fixation.

[0021] In this embodiment, during the preparation of surface structure 1a, PMMA microspheres are uniformly dispersed within the PET film material. When strong external light irradiates surface structure 1a, the PMMA microspheres diffuse the incident light, effectively atomizing it and scattering the concentrated light evenly, thereby reducing the glare on the eyes. Simultaneously, glass microspheres are embedded in the PET film, and their smooth surfaces reflect the incident light specularly. Combined with the effect of the PMMA microspheres, this further enhances the overall light reflection effect of surface structure 1a. The substrate of the triangular aluminum-coated PET reflective layer 1b is a PET layer with a micron-level triangular structure. On the inner surface of the triangular cavity formed by each triangular structure, an aluminum layer is uniformly covered by a vacuum coating process. When incident light shines on the triangular aluminum-coated PET reflective layer 1b, the three reflective surfaces of the triangular cavity will reflect the incident light respectively. The three reflective surfaces have different reflection directions. Through synergistic effect, the incident light can be reflected at multiple angles, thereby expanding the reflection range of the reflective layer on the incident light, significantly improving the film's ability to reflect light, and enhancing the thermal insulation effect. The EPE adhesive base layer 1c is made using a closed-cell foaming process, which forms a large number of independent closed-cell structures inside. These closed-cell structures can effectively prevent heat from being transferred through air convection or conduction, thus forming a heat insulation barrier inside the film and playing a role in blocking heat transfer and providing thermal insulation. During the production process, the release film 1f undergoes a release treatment on the surface that contacts the adhesive layer 1d, resulting in a lower adhesion between the release film 1f and the adhesive layer 1d. When in use, it can be peeled off from the surface of the adhesive layer 1d, making it easier for the film to be adhered and fixed to the object to be protected or warned, thus improving the convenience of construction.

[0022] The working principle of this thermal insulation and reflective film is as follows: First, a PET triangular bubble layer with a micron-level triangular structure is created using a bubble mechanism; this is the substrate for the triangular aluminum-plated PET reflective layer 1b. Then, this PET triangular bubble layer is tightly bonded to the EPE adhesive base layer 1c using an adhesive process, forming a preliminary layered structure. Next, the PET triangular bubble layer is corona-treated to increase its surface activity. Then, an aluminum layer is deposited on the corona-treated PET triangular bubble layer using a vacuum deposition process, forming a highly reflective aluminum layer on the surface of the triangular cavities, thus enhancing its light reflection performance. Afterwards, After aluminizing, a layer of PET material is coated onto the surface of the PET triangular bubble layer to form a protective layer covering the aluminized surface. This layer protects the aluminum layer from damage and maintains the reflective effect. This protective layer, together with the PET triangular bubble layer, PMMA microspheres, and glass microspheres, constitutes the surface structure 1a. Finally, an adhesive layer 1d is coated on the side of the EPE adhesive base layer 1c away from the PET triangular bubble layer, and a release film 1f is placed over the adhesive layer 1d to complete the fabrication of the entire thermal insulation and reflective film. Through the sequential processing of each step, the various layers of the film are combined in an orderly manner to achieve the comprehensive functions of reflection, heat preservation, heat insulation, and convenient bonding.

[0023] Example 2, by Figure 2-5 A heat pipe is provided, including a heat pipe body 2. The outer surface of the heat pipe body 2 is covered with a heat insulation and heat-reflective film through an adhesive layer 1d. A mounting shell 3 is fixedly connected to the outer periphery of one end of the heat pipe body 2. A mounting sleeve 4 that can be inserted into the inner side of the mounting shell 3 is fixedly connected to the outer periphery of the other end of the heat pipe body 2. A positioning block 5 is fixedly connected to the outer side of the mounting sleeve 4. A snap-fit ​​component 7 is provided on the inner side of the mounting shell 3 to fix the positioning block 5 in the inner side of the positioning groove 6.

[0024] The thermal pipeline achieves efficient thermal insulation by attaching a heat-insulating and reflective film to its outer surface, reducing heat loss. The pipeline is quickly connected and fixed by the cooperation of the mounting shell 3, mounting sleeve 4, positioning block 5 and snap-fit ​​assembly 7, improving the convenience and stability of pipeline installation.

[0025] In this embodiment, there are four positioning blocks 5. The four positioning blocks 5 are arranged in a circular array on the outside of the mounting sleeve 4. The inner side of the mounting shell 3 is provided with four positioning grooves 6 corresponding to the positions of the four positioning blocks 5. The cross-sectional shape of each positioning block 5 is perfectly matched with the cross-sectional shape of the corresponding positioning groove 6. When the mounting sleeve 4 is inserted into the inner side of the mounting shell 3, the four positioning blocks 5 are respectively inserted into the inner side of the four positioning grooves 6 one by one.

[0026] The above settings can accurately position the mounting sleeve 4 and mounting shell 3 when connecting thermal pipelines, avoid misalignment during the connection process, and evenly distribute the connection force, thereby improving the stability and reliability of the pipeline connection.

[0027] In this embodiment, the snap-fit ​​assembly 7 includes a snap-fit ​​spring 71 fixedly connected to the inner side of the mounting shell 3, a snap-fit ​​block 72 fixedly connected to the other end of the snap-fit ​​spring 71, a snap-fit ​​rod 73 fixedly connected to the other end of the snap-fit ​​block 72 and passing through the inner side of the preset snap-fit ​​hole of the positioning block 5, and a push block 74 that can drive the snap-fit ​​block 72 to move. A sealing ring 8 is fixedly connected to the outer side of the mounting sleeve 4, and a push hole is provided on the outer side of the mounting shell 3 for the push block 74 to move radially along the mounting shell 3.

[0028] The snap-fit ​​assembly 7 uses a snap-fit ​​spring 71 to push the snap-fit ​​rod 73 into the positioning block 5 for quick fixation, and the snap-fit ​​block 72 is moved by the push block 74 to achieve quick disassembly. The structure is simple and easy to operate, which effectively improves the efficiency of thermal pipeline connection and maintenance. At the same time, the setting of the sealing ring 8 enhances the sealing performance between the mounting sleeve 4 and the mounting shell 3, preventing the leakage of medium in the pipeline.

[0029] In this embodiment, one end of the push spring 9 is fixedly connected to the inner end face of the positioning groove 6 away from the groove opening, and the other end is fixedly connected to the push plate 10. When the positioning block 5 is inserted into the positioning groove 6, the positioning block 5 will push the push plate 10 to move in the direction of compressing the push spring 9, so that the push spring 9 is in a compressed state. When the snap-fit ​​component 7 releases the fixing of the positioning block 5, the compressed push spring 9 will push the push plate 10 to move in the direction of the groove opening of the positioning groove 6, thereby pushing the positioning block 5 to pop out of the positioning groove 6, which can facilitate the disassembly operation of the heat pipe.

[0030] Working principle: When connecting heat pipes, if two heat pipes need to be connected, the installation sleeve 4 of one pipe is inserted into the inner side of the installation shell 3 of the other pipe. The positioning block 5 on the outside of the installation sleeve 4 then enters the positioning groove 6 on the inside of the installation shell 3. At this time, the snap-fit ​​spring 71 in the snap-fit ​​assembly 7 pushes the snap-fit ​​block 72 to move, so that the snap-fit ​​rod 73 passes through the snap-fit ​​hole on the positioning block 5, fixing the positioning block 5 in the positioning groove 6, realizing the connection and fixation between the installation sleeve 4 and the installation shell 3, and completing the quick connection of the two pipes. When disassembly is required, the snap-fit ​​block 72 is moved by the drive push block 74, so that the snap-fit ​​rod 73 disengages from the snap-fit ​​hole, and the fixation is released.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal insulation and reflective film, characterized in that: From top to bottom, they include: Surface structure (1a), wherein the surface structure (1a) is a composite layer of PMMA microspheres, glass microspheres and PET film; A triangular aluminum-plated PET reflective layer (1b), wherein the triangular aluminum-plated PET reflective layer (1b) is an aluminum-plated PET layer with a micron-scale triangular structure; EPE adhesive base layer (1c), wherein the EPE adhesive base layer (1c) is tightly bonded to the triangular aluminized PET reflective layer (1b); Adhesive layer (1d) is used to bond and fix the film to the object to be protected or warned; Release film (1f), which covers the surface of adhesive layer (1d).

2. The thermal insulation and reflective film according to claim 1, characterized in that: In the surface structure (1a), PMMA microspheres are uniformly dispersed within the PET coating; the glass microspheres are embedded within the PET coating.

3. The thermal insulation and reflective film according to claim 2, characterized in that: The triangular aluminum-plated PET reflective layer (1b) reflects incident light from multiple angles through the three reflective surfaces of the triangular cavity in a coordinated manner. The surface of the triangular cavity is coated with an aluminum layer by vacuum plating.

4. The thermal insulation and reflective film according to claim 1 or 3, characterized in that: The EPE adhesive base layer (1c) forms a thermal insulation barrier through its own closed-cell foam structure.

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