Dimmable heat insulation film with safe explosion-proof performance

Abstract

The utility model relates to the technical field of heat insulation film preparation, in particular to a light-adjustable heat insulation film with safe explosion-proof performance, which comprises a self-cleaning anti-reflection anti-wear layer, a light-adjustable primary color base material layer, a mounting adhesive layer and an optical protection release film layer from bottom to top. The light-adjustable heat insulation film provided by the utility model has multiple functions of scratch resistance, low reflection, high ultraviolet ray blocking, high infrared ray blocking and the like, light transmission (VLT: 0.1%-80%) and near-infrared blocking (IRCUT: 50%-99%) are realized by matching on the basis of not blocking signals, and the color can be randomly blended according to the requirements of customers; the optical experience feeling of a user is better; compared with an interlayer dyeing film, the preparation process is simple, the production efficiency is high, and the service life is long; the super low-transmittance product is high in definition, and the haze is less than 1.0%; the product is extensible in function and excellent in optical performance, and also has safety and explosion-proof performance.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation film preparation, in particular to a light-adjustable heat insulation film with safety and explosion-proof performance. Background Art

[0002] There are mainly the following types of thermal insulation films for existing window film products: nano-ceramic thermal insulation film, which is achieved by adding inorganic dyes and thermal insulation materials in the glue layer between two transparent base films to adjust the product color, light transmittance and infrared blocking data; there is also a magnetron metal thermal insulation film that achieves thermal insulation effect through metal reflection. The metal layer in the thermal insulation film selectively reflects back infrared, ultraviolet and visible light heat energy in the sunlight, and the color is adjusted by adding dyes in the glue layer between the base film and the metal film to achieve changes in light transmittance and thermal insulation effect. However, the special process of the metal film layer will cause uneven sputtering, resulting in uneven light transmittance and infrared blocking data, and unstable product quality. The metal layer's reflection of visible light and infrared may also interfere with communication signals; there is also primary color thermal insulation film, which uses a special sputtering process to synthesize nanomaterials onto an optical polyester film at one time, forming the required infrared blocking and light transmittance at one time. Compared with the above two thermal insulation film products, the color is relatively single.

[0003] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0004] This utility model addresses the problems of the prior art by providing a dimmable thermal insulation film with both safety and explosion-proof properties. While providing excellent thermal insulation, it can precisely adjust visible light transmittance within a range of 0.1% to 85%, keeping haze within 1.0%, and eliminating red, white, or blue haze. This thermal insulation film overcomes the drawbacks of low light transmittance, difficult production control, poor color retention, and inadequate UV blocking. It precisely adjusts light transmittance and thermal insulation to meet application requirements, perfectly matches any vehicle color, and offers enhanced aesthetics.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a dimmable heat-insulating film with both safety and explosion-proof performance, which comprises, from bottom to top:

[0006] Self-cleaning anti-reflection and anti-transmission anti-wear layer, dimmable primary color base material layer, installation adhesive layer and optical protection release film layer.

[0007] Furthermore, the dimmable primary color substrate layer includes, from top to bottom, a first color layer, a first nano heat-insulating layer, and a first UV protection layer.

[0008] Among them, the first color layer in the dimmable primary color substrate layer is a base film, the material of which is selected from any one of PET, PVC, TPU, and PC. The nano thermal insulation layer and the UV protection layer are obtained by chemical primer treatment, and the nano ceramic material or UV absorber is compounded on the base film.

[0009] Nano-ceramic materials have excellent thermal insulation properties, can effectively block infrared rays and improve the thermal insulation effect; UV absorbers can effectively block ultraviolet rays and protect people and objects from ultraviolet damage. The utility model adopts chemical primer treatment to improve the adhesion and stability of the material, making the thermal insulation film more durable and not easy to fall off; and the composite treatment of nano-materials and UV absorbers ensures high transparency, does not affect the clarity of vision, has good weather resistance, is not easy to fade and has low haze, realizing multiple functions such as heat insulation, UV protection, explosion protection, etc., and has excellent comprehensive performance.

[0010] Furthermore, a dimmable base material layer is provided between the dimmable primary color base material layer and the mounting adhesive layer.

[0011] Furthermore, the dimmable substrate layer and the dimmable primary color substrate layer are connected via a composite adhesive layer.

[0012] The composite adhesive layer is made of polyacrylate adhesive or polyurethane adhesive and functional materials.

[0013] Furthermore, the dimmable substrate layer includes, from bottom to top, a second color layer, a second nano heat-insulating layer, and a second UV protection layer.

[0014] Furthermore, the total thickness of the dimmable heat-insulating film is 40 to 500 μm.

[0015] Furthermore, the thickness of the self-cleaning anti-reflection and anti-transmission anti-wear layer is 1 to 30 μm, the thickness of the dimmable primary color substrate layer is 5 to 250 μm, the thickness of the mounting adhesive layer is 1 to 30 μm, and the thickness of the optical protection release film layer is 10 to 100 μm.

[0016] Furthermore, the thickness of the composite adhesive layer is 5 to 50 μm.

[0017] Furthermore, the thickness of the dimmable substrate layer is 1 to 50 μm.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a dimmable heat-insulating film with both safety and explosion-proof properties. While providing excellent heat insulation, the film also achieves a precisely adjustable visible light transmittance within a range of 0.1% to 85%, with haze controllable to within 1.0%. This prevents fog (red, white, or blue) from appearing in direct sunlight or during nighttime encounters. This solution addresses the current problems of low light transmittance, difficulty in production and control, poor color retention, and poor UV blocking performance of window films. It can precisely adjust the light transmittance and heat insulation to meet the needs of various users, perfectly matching any vehicle color and enhancing aesthetics. Furthermore, the dimmable heat-insulating film product transmits light without affecting the user's vision, achieving high-definition results while balancing safety and heat insulation. Furthermore, the flexible number of functional layers allows for a variety of product types to meet the needs of different usage environments. The product has a simple process, is easy to produce, and can be mass-produced industrially, making it more cost-effective. It is easy to apply and has a long service life. Test results show that it effectively prevents glass shattering in the event of strong impact, protecting vehicle occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the structure of the dimmable thermal insulation film of Example 1;

[0022] Figure 2 Schematic diagram of the structure of the dimmable thermal insulation film of Example 2.

[0023] Figure numerals: 1. Self-cleaning anti-reflection and anti-transmittance anti-wear layer, 2. Dimmable primary color substrate layer, 21. First color layer, 22. First nano-thermal insulation layer, 23. First UV protection layer, 3. Installation adhesive layer, 4. Optical protection release film layer, 5. Composite adhesive layer, 6. Dimmable substrate layer, 61. Second color layer, 62. Second nano-thermal insulation layer, 63. Second UV protection layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0025] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; they may refer to mechanical or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] This specific embodiment provides a dimmable heat-insulating film with both safety and explosion-proof performance, which includes, from bottom to top:

[0028] A self-cleaning anti-reflection and anti-transmission anti-wear layer 1, a dimmable primary color substrate layer 2, a mounting adhesive layer 3 and an optical protection release film layer 4.

[0029] In some preferred embodiments, the dimmable primary color substrate layer 2 includes, from top to bottom, a first color layer 21 , a first nanometer heat-insulating layer 22 and a first UV protection layer 23 .

[0030] Among them, the first color layer in the dimmable primary color substrate layer is a base film, the material of which is selected from any one of PET, PVC or TPU. The nano thermal insulation layer and the UV protection layer are obtained by chemical primer treatment, and the nano ceramic material or UV absorber is compounded on the corona treated base film.

[0031] Through the design of a multi-layer structure, this specific embodiment allows each layer of material to optimize its function separately, making the overall performance more excellent. The first nano-insulation layer effectively blocks infrared rays, provides excellent thermal insulation effect, reduces the temperature rise in the car or room, and improves riding comfort. The first color layer can not only adjust the appearance color of the product, but also control the visible light transmittance, thereby meeting the needs of different transmittances and adapting to different environments and user preferences. At the same time, the multi-layer structure increases the strength and toughness of the film, improves the explosion-proof performance, and can effectively prevent glass from shattering during strong impacts, protecting personnel safety. The structure realizes multiple functions such as heat insulation, UV protection, color adjustment, and explosion-proof, meeting the diverse needs of different users.

[0032] In some preferred embodiments, Figure 2As shown, a dimmable base material layer 6 is further provided between the dimmable primary color base material layer 2 and the mounting adhesive layer 3 .

[0033] In some preferred embodiments, the dimmable substrate layer 6 and the dimmable primary color substrate layer 2 are connected via a composite adhesive layer 5 .

[0034] The setting of the composite adhesive layer improves the stability and durability of the overall structure. The polyacrylate adhesive or polyurethane adhesive has good weather resistance, can maintain stable viscosity and performance under various environmental conditions, is not easy to age or fail, and has certain waterproof and moisture-proof properties, which can prevent water and moisture from penetrating and protect the structure and function of each layer of the thermal insulation film.

[0035] In some preferred embodiments, Figure 2 As shown, a dimming substrate layer 6 is further provided between the composite adhesive layer 5 and the mounting adhesive layer 3 .

[0036] In some preferred embodiments, the dimmable substrate layer 6 includes, from bottom to top, a second color layer 61 , a second nano-heat-insulating layer 62 , and a second UV protection layer 63 .

[0037] In this specific embodiment, Figure 1 On the basis of the structure, a composite adhesive layer and a dimmable substrate layer are added to further improve the explosion-proof performance and aging resistance of the dimmable thermal insulation film.

[0038] In some preferred embodiments, the total thickness of the dimmable heat-insulating film is 40-500 μm.

[0039] In some preferred embodiments, the thickness of the self-cleaning anti-reflection and anti-transmission anti-wear layer 1 is 1 to 30 μm, the thickness of the dimmable primary color substrate layer 2 is 5 to 250 μm, the thickness of the mounting adhesive layer 3 is 1 to 30 μm, and the thickness of the optical protection release film layer 4 is 10 to 100 μm.

[0040] In some preferred embodiments, the thickness of the composite adhesive layer 5 is 5-50 μm.

[0041] In some preferred embodiments, the thickness of the dimmable substrate layer 6 is 1-50 μm.

[0042] This specific embodiment also provides a method for preparing a dimmable heat-insulating film with both safety and explosion-proof performance, as follows:

[0043] S1. Using the base film as the first color layer 21, corona treatment and chemical primer treatment are performed on one side of the first color layer 21 to form a first nano-heat insulation layer 22 and a first UV protection layer 23 to obtain a dimmable primary color substrate layer 2;

[0044] S2, forming a self-cleaning anti-reflection and anti-transmission anti-wear layer 1 on the surface of the first ultraviolet protection layer 23 by UV light curing process;

[0045] S3, applying a mounting adhesive layer 3 of polyacrylate adhesive or polyurethane adhesive on the other side of the first color layer 21;

[0046] S4, compounding transparent PET on the mounting adhesive layer 3 to obtain an optical protection release film layer 4.

[0047] In some preferred embodiments, the preparation method of the dimmable heat-insulating film with both safety and explosion-proof performance provided by this specific embodiment is as follows:

[0048] S1. Using the base film as the first color layer 21, corona treatment and chemical primer treatment are performed on one side of the first color layer 21 to form a first nano-heat insulation layer 22 and a first UV protection layer 23 to obtain a dimmable primary color substrate layer 2;

[0049] S2. Applying a polyacrylate adhesive or a polyurethane adhesive on the side of the dimmable primary color substrate layer 2 away from the first UV protection layer 23 to form a composite adhesive layer 5;

[0050] S3. A base film is attached to the other side of the composite adhesive layer 5 to form a second color layer 61. One side of the second color layer 61 is subjected to corona treatment and chemical primer treatment to form a second nano-insulation layer 62 and a second UV protection layer 63 to obtain a dimmable substrate layer 6.

[0051] S4, applying polyacrylate adhesive or polyurethane adhesive on the second UV protection layer 63 to form a mounting adhesive layer 3;

[0052] S5, forming a self-cleaning anti-reflection and anti-transmission anti-wear layer 1 by light-curing UV curing liquid on the side of the dimmable primary color substrate layer 2 away from the composite adhesive layer 5;

[0053] S6. A PET release film layer is applied to one side of the mounting adhesive layer 3 to obtain an optical protection release film layer 4.

[0054] The substrate can be selected from any one of PET, PVC or TPU.

[0055] Example 1

[0056] This embodiment provides a dimmable heat-insulating film with both safety and explosion-proof performance. Figure 1 As shown, from bottom to top, it includes:

[0057] Self-cleaning anti-reflection and anti-transmission anti-wear layer 1, with a thickness of 5μm;

[0058] Dimmable primary color substrate layer 2, with a thickness of 60 μm;

[0059] Install glue layer 3, thickness 15μm;

[0060] The optical protection release film layer 4 has a thickness of 50 μm.

[0061] The dimmable primary color substrate layer 2 includes, from top to bottom, a first color layer 21 , a first nanometer heat-insulating layer 22 and a first ultraviolet protection layer 23 .

[0062] The preparation method of the dimmable heat-insulating film with both safety and explosion-proof performance provided in this embodiment is as follows:

[0063] S1. Using a PVC base film as the first color layer 21, corona treatment and chemical primer treatment are performed on one side of the first color layer 21 to form a first nano-insulation layer 22 and a first UV protection layer 23, thereby obtaining a dimmable primary color substrate layer 2;

[0064] S2, forming a self-cleaning anti-reflection and anti-transmission anti-wear layer 1 on the surface of the first ultraviolet protection layer 23 by UV light curing process;

[0065] S3, applying polyacrylate adhesive on the other side of the first color layer 21 to form a mounting adhesive layer 3;

[0066] S4, compounding transparent PET on the mounting adhesive layer 3 to obtain an optical protection release film layer 4.

[0067] Example 2

[0068] This embodiment provides a dimmable heat-insulating film with both safety and explosion-proof performance. Figure 2 As shown, from bottom to top, it includes:

[0069] Self-cleaning anti-reflection and anti-transmission anti-wear layer 1, with a thickness of 5μm;

[0070] Dimmable primary color substrate layer 2, with a thickness of 60 μm;

[0071] Composite adhesive layer 5, thickness 15 μm;

[0072] The light-adjustable substrate layer 6 has a thickness of 5 μm;

[0073] Install glue layer 3, thickness 15μm;

[0074] The optical protection release film layer 4 has a thickness of 50 μm.

[0075] Among them, the dimmable primary color substrate layer 2 includes, from top to bottom, a first color layer 21, a first nano-thermal insulation layer 22 and a first ultraviolet protection layer 23; the dimmable substrate layer 6 includes, from bottom to top, a second color layer 61, a second nano-thermal insulation layer 62 and a second ultraviolet protection layer 63.

[0076] The preparation method of the dimmable heat-insulating film with both safety and explosion-proof performance provided in this embodiment is as follows:

[0077] S1. Using a PET base film as the first color layer 21, corona treatment and chemical primer treatment are performed on one side of the first color layer 21 to form a first nano-insulation layer 22 and a first UV protection layer 23 to obtain a dimmable primary color substrate layer 2;

[0078] S2. Coating a functional layer of polyacrylate adhesive or polyurethane adhesive on the side of the dimmable primary color substrate layer 2 away from the first UV protection layer 23 to form a composite adhesive layer 5;

[0079] S3. A base film PET is attached to the other side of the composite adhesive layer 5 to form a second color layer 61. One side of the second color layer 61 is subjected to corona treatment and chemical primer treatment to form a second nano-insulation layer 62 and a second UV protection layer 63 to obtain a dimmable substrate layer 6.

[0080] S4, applying polyurethane adhesive on the second UV protection layer 63 to form a mounting adhesive layer 3;

[0081] S5, forming a self-cleaning anti-reflection and anti-transmission anti-wear layer 1 by light-curing UV curing liquid on the side of the dimmable primary color substrate layer 2 away from the composite adhesive layer 5;

[0082] S6. A PET release film layer is applied to one side of the mounting adhesive layer 3 to obtain an optical protection release film layer 4.

[0083] Performance Testing

[0084] The dimmable thermal insulation film obtained in Example 1 was tested for visible light, TSER, UV transmittance, haze, film surface reflectance, elongation at break, maximum tensile force at break, and adhesion. The test methods were carried out in accordance with QC / T 1170-2022 and GB / T29061. The results are as follows:

[0085]

[0086] According to the above data, the dimmable heat-insulating film provided by the present invention has the following advantages:

[0087] 1. In addition to having all the functions of energy-saving films on the market: anti-scratch, low reflection, high UV blocking, high infrared blocking and other functions, without blocking signals, it can also achieve arbitrary light transmittance (VLT: 0.1% ~ 80%) and infrared blocking 950nm (IRCUT: 10% ~ 100%), which can be matched and the color can be arbitrarily allocated according to customer needs;

[0088] 2. Compared with high-insulation products, the field of vision is clear in direct sunlight or when meeting other vehicles at night, without red, white or blue fog, and the user has a better optical experience;

[0089] 3. Compared with the interlayer dyeing film, it has simple preparation process, high production efficiency and long service life;

[0090] 4. Super low-transmittance products have high clarity and haze below 1.0%;

[0091] 5. The product functions are expandable. In addition to excellent optical performance, it also has safety and explosion-proof performance. Through different structural designs, the safety performance of the product can be upgraded from anti-splash level to anti-penetration level.

[0092] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dimmable heat-insulating film with both safety and explosion-proof performance, characterized in that: From bottom to top, this includes: Self-cleaning anti-reflection and anti-transmission anti-wear layer, dimmable primary color base material layer, installation adhesive layer and optical protection release film layer.

2. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 1, characterized in that: The dimmable primary color substrate layer comprises, from top to bottom, a first color layer, a first nano heat insulation layer and a first ultraviolet protection layer.

3. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 1, characterized in that: A dimmable base material layer is further provided between the dimmable primary color base material layer and the mounting adhesive layer.

4. The adjustable light insulation film with safety and explosion-proof performance according to claim 3, characterized in that: The dimmable substrate layer and the dimmable primary color substrate layer are connected via a composite adhesive layer.

5. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 4, characterized in that: The dimmable substrate layer comprises, from bottom to top, a second color layer, a second nanometer heat-insulating layer and a second ultraviolet protection layer.

6. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 1, characterized in that: The total thickness of the dimmable heat-insulating film is 40-500 μm.

7. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 6, characterized in that: The thickness of the self-cleaning anti-reflection and anti-transmission anti-wear layer is 1-30 μm, the thickness of the dimmable primary color substrate layer is 5-250 μm, the thickness of the mounting adhesive layer is 1-30 μm, and the thickness of the optical protection release film layer is 10-100 μm.

8. The dimmable heat-insulating film with safety and explosion-proof performance according to claim 4, characterized in that: The thickness of the composite adhesive layer is 5-50 μm.

9. The adjustable light insulation film with safety and explosion-proof performance according to claim 5, characterized in that: The thickness of the dimmable substrate layer is 1-50 μm.

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