PET (Polyethylene Terephthalate) film with multi-layer composite reinforced structure

Abstract

The utility model relates to the technical field of composite PET (Polyethylene Terephthalate) films, and discloses a PET film with a multilayer composite reinforced structure, which comprises a separation layer, two front wrapping mechanisms and two rear wrapping mechanisms, a heat-resistant layer is attached to the bottom side of the separation layer, an alternate connecting layer is attached to the bottom side of the heat-resistant layer, an insulating layer is attached to the bottom side of the alternate connecting layer, and the insulating layer is attached to the bottom side of the heat-resistant layer. A PET base layer is attached to the bottom side of the insulating layer, a chemical stable layer is attached to the bottom side of the PET base layer, and the two front wrapping mechanisms and the two rear wrapping mechanisms are arranged in front of and behind the two sides of the partition layer, the heat-resistant layer, the alternate connecting layer, the insulating layer, the PET base layer and the chemical stable layer in a clamped mode respectively. According to the composite film, liquid is blocked through the insulating layer and the blocking layer, the blocking performance of the composite film on the liquid is improved, long-term erosion of the liquid is avoided, and meanwhile, the anti-striking capacity and the heat resistance are improved through the heat-resistant layer and the chemical stable layer.

Description

Technical Field

[0001] This utility model relates to the field of composite PET film technology, specifically to PET film with a multi-layer composite reinforced structure. Background Technology

[0002] The basic structure of PET film is mainly composed of polyethylene terephthalate, a linear polymer whose molecular structure consists of benzene rings and ester groups connected by oxygen bridges. It exhibits high crystallinity and excellent mechanical properties. PET film is typically manufactured using a biaxial stretching process, with a thickness ranging from 0.0 mm to 0.15 mm, and its surface can be translucent or colorless and transparent.

[0003] Existing PET films typically consist of only a PET substrate, an adhesive backing, and a wear-resistant layer. With prolonged use, they are susceptible to corrosion from liquids and moisture, which reduces the strength of the PET film. Furthermore, due to the thin wear-resistant layer, long-term use can lead to the PET substrate being exposed, affecting the overall performance of the PET film. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layered composite reinforced PET film to solve the above-mentioned problems. By using an insulating layer and a barrier layer to block liquids, the composite film is prevented from being corroded by liquids for a long time, thereby improving its service life. At the same time, the heat-resistant layer and the chemically stabilizing layer improve the impact resistance and bonding speed of the composite film, thereby improving its overall performance. The front and rear wrapping mechanism wraps the edges of the composite film to enhance its integrity.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A multi-layer composite reinforced PET film includes: a partition layer, two front wrapping mechanisms and two rear wrapping mechanisms. A heat-resistant layer is attached to the bottom side of the partition layer, an alternating connecting layer is attached to the bottom side of the heat-resistant layer, an insulating layer is attached to the bottom side of the alternating connecting layer, a PET base layer is attached to the bottom side of the insulating layer, and a chemically stabilizing layer is attached to the bottom side of the PET base layer.

[0007] The two front wrapping mechanisms and the two rear wrapping mechanisms are respectively snapped onto the front and back sides of the partition layer, the heat-resistant layer, the alternating connection layer, the insulating layer, the PET base layer and the chemically stabilized layer, and a heat dissipation mechanism is snapped between the two front wrapping mechanisms and the two rear wrapping mechanisms.

[0008] Furthermore, both of the aforementioned front wrapping mechanisms include a front C-shaped plate, and each of the two front C-shaped plates has two clamping plates fixedly arranged longitudinally at its rear.

[0009] Furthermore, both of the rear wrapping mechanisms include a rear C-shaped plate, both of the rear C-shaped plates have grooves on their inner sides, and both of the rear C-shaped plates have slots on their front sides.

[0010] Furthermore, the alternating connecting layer includes a plurality of polyester elastomers, and thermoplastic elastomers are fixedly disposed between each pair of the plurality of polyester elastomers.

[0011] Furthermore, the two card plates are the same size and have the same card slot.

[0012] Furthermore, the material of the chemically stabilized layer is a UV-curable coating.

[0013] Furthermore, the insulating layer is made of glass fiber.

[0014] Furthermore, the heat-resistant layer is made of polyurethane adhesive.

[0015] Furthermore, the material of the partition layer is a fluorocarbon resin-based nanocomposite coating.

[0016] Furthermore, both of the heat dissipation mechanisms include C-shaped pressure plates, with two through slots longitudinally formed on the front side of the two C-shaped pressure plates, and multiple extended heat dissipation holes formed on the opposite side of the two C-shaped pressure plates.

[0017] In summary, the beneficial effects of this utility model are as follows: through the insulating layer and the barrier layer, the composite film has dual liquid isolation properties, which improves its service life; through the heat-resistant layer and the chemically stable layer, the impact resistance is improved, while the bonding speed of the composite film is also increased. The strength of the composite film is improved from multiple aspects, including liquid isolation, impact resistance, and the integrity of the front and rear wrapping mechanism. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is an axonometric view of the present invention;

[0021] Figure 3 This is an exploded view of this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Partition layer; 2. Heat-resistant layer; 3. Alternating connecting layer; 301. Polyester elastomer; 302. Thermoplastic elastomer; 4. Insulation layer; 5. PET base layer; 6. Chemically stabilized layer; 7. Front wrapping mechanism; 701. Front C-shaped plate; 702. Card plate; 8. Rear wrapping mechanism; 801. Rear C-shaped plate; 802. Groove; 803. Card slot; 9. Heat dissipation mechanism; 901. C-shaped pressure plate; 902. Through groove; 903. Extended heat dissipation hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] See Figures 1-3 As shown, this utility model provides a multi-layer composite reinforced PET film, including: a partition layer 1, two front wrapping mechanisms 7 and two rear wrapping mechanisms 8. A heat-resistant layer 2 is attached to the bottom side of the partition layer 1, an alternating connecting layer 3 is attached to the bottom side of the heat-resistant layer 2, an insulating layer 4 is attached to the bottom side of the alternating connecting layer 3, a PET base layer 5 is attached to the bottom side of the insulating layer 4, and a chemically stabilizing layer 6 is attached to the bottom side of the PET base layer 5. The two front wrapping mechanisms 7 and the two rear wrapping mechanisms 8 are respectively snapped onto the partition layer 1, the heat-resistant layer 2, and the alternating connecting layer 8. Heat dissipation mechanisms 9 are snapped together on both sides and front and back of layer 3, insulating layer 4, PET base layer 5 and chemically stabilized layer 6, and between the two front wrapping mechanisms 7 and the two rear wrapping mechanisms 8. The chemically stabilized layer 6 is made of UV-cured coating, the insulating layer 4 is made of glass fiber, the heat-resistant layer 2 is made of polyurethane adhesive, the partition layer 1 is made of fluorocarbon resin-based nanocomposite coating, and the alternating connecting layer 3 includes a plurality of polyester elastomers 301, with thermoplastic elastomers 302 fixedly disposed between each pair of the plurality of polyester elastomers 301.

[0026] By adopting the above technical solution, the isolation layer 1 enables the composite film to block moisture and disperse fingerprints and grease, thus preventing liquid corrosion and improving the surface aesthetics. The fluorocarbon resin-based nanocomposite coating itself possesses high protective and durable properties, enhancing overall performance. The heat-resistant layer 2 isolates heat, preventing separation of layers caused by prolonged heating. The polyurethane adhesive itself is heat-resistant and has good impact resistance. The alternating connection of polyester elastomer 301 and thermoplastic elastomer in the alternating bonding layer 3 increases the strength and performance of the composite film. The insulation layer 4 isolates electrical components, and the fiberglass itself has anti-corrosion and high-temperature resistance properties, extending the product's lifespan. The chemically stabilizing layer 6 facilitates adhesion to the PET base layer 5, and the UV curing layer allows for rapid curing and strong adhesion, reducing installation time.

[0027] See Figures 1-3 As shown, both front wrapping mechanisms 7 include a front C-shaped plate 701, and two clamping plates 702 are longitudinally fixedly arranged at the rear of each of the two front C-shaped plates 701. Both rear wrapping mechanisms 8 include a rear C-shaped plate 801, and grooves 802 are formed on the inner side of each of the two rear C-shaped plates 801. Slots 803 are formed on the front side of each of the two rear C-shaped plates 801. The size of the clamping plates 702 is the same as that of the slots 803. Both heat dissipation mechanisms 9 include C-shaped pressure plates 901, and two through slots 902 are formed longitudinally on the front side of each of the two C-shaped pressure plates 901. Multiple extended heat dissipation holes 903 are formed on the opposite side of each of the two C-shaped pressure plates 901.

[0028] In use, the front C-shaped plate 701 and the rear C-shaped plate 801 in the front wrapping mechanism 7 and the rear wrapping mechanism 8 are both provided with the same groove 802 in the rear C-shaped plate 801. The symmetrical grooves 802 can clamp the edge of the composite film in the middle for wrapping, thereby improving the integrity of the composite film and enhancing the overall stability. The two clamping plates 702 fixed to the rear side of the front C-shaped plate 701 and the clamping slots 803 opened on the front side of the rear C-shaped plate 801 are interlocked to complete the limiting connection between the front C-shaped plate 701 and the rear C-shaped plate 801, ensuring the wrapping of the edge of the composite film. Through the through grooves 902 formed by the clamping plates 702 and the clamping slots 803 during the connection process, the heat dissipation mechanism 9 is connected in series with the front wrapping mechanism 7 and the rear wrapping mechanism 8 during the connection process. The extended heat dissipation holes 903 on one side of the C-shaped pressure plate 901 in the heat dissipation mechanism 9 provide heat dissipation space for both sides of the composite film, preventing the composite film from separating and improving its service life.

[0029] With the above structure, before using this product, through the cooperation between the front wrapping mechanism 7 and the rear wrapping mechanism 8, the clamping plate 702 in the front and rear wrapping mechanisms 8 carries the front C-shaped plate 701 and inserts it into the slot 803 opened on the front side of the rear C-shaped plate 801. At the same time, as the clamping plate 702 moves to the rear, it extends into the slot 803 through the through groove 902. While the front wrapping mechanism 7 and the rear wrapping mechanism 8 are connected, the heat dissipation mechanism 9 is limited. At the same time, the inner sides of the C-shaped plates of the front wrapping mechanism 7 and the rear wrapping mechanism 8 are the grooves 802 in the rear wrapping mechanism 8, which can wrap the composite film and improve the integrity of the composite film. The C-shaped pressure plate 901 squeezes the middle part of the composite film, and at the same time, the extended heat dissipation holes 903 in contact with the composite film dissipate excess heat and improve the heat dissipation efficiency. The composite film features a high efficiency, with a chemically stabilized layer 6 facilitating adhesion to the PET base layer 5. The UV-curing layer provides rapid curing and strong adhesion, reducing installation time. An insulating layer 4 isolates electrical components, and the fiberglass itself offers corrosion resistance and high-temperature resistance, extending the product's lifespan. A heat-resistant layer 2 isolates heat, preventing separation due to prolonged heating and improving strength and lifespan. The polyurethane adhesive, while heat-resistant, also provides excellent impact resistance, enhancing the composite film's strength. A barrier layer 1 isolates the surface of the composite film from moisture and fingerprints, preventing erosion caused by prolonged liquid adhesion and improving the aesthetics of fingerprint removal. The fluorocarbon resin-based nanocomposite coating offers high protection and durability, enhancing overall performance.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A PET film of a multilayer composite reinforcing structure, characterized in that, Include: The partition layer (1) is matched with the heat-resistant layer (2) on the bottom side, the heat-resistant layer (2) is matched with the alternating connection layer (3) on the bottom side, the alternating connection layer (3) is matched with the insulating layer (4) on the bottom side, the insulating layer (4) is matched with the PET base layer (5) on the bottom side, and the PET base layer (5) is matched with the chemical stability layer (6) on the bottom side; Two said front wrapping mechanism (7) and two rear wrapping mechanism (8) are respectively clamped and arranged on both sides of the partition layer (1), the heat-resistant layer (2), the alternating connection layer (3), the insulating layer (4), the PET base layer (5) and the chemical stability layer (6), two said front wrapping mechanism (7) and two rear wrapping mechanism (8) are clamped and arranged with heat dissipation mechanism (9) between them.

2. The multi-layered composite reinforced PET sheet according to claim 1, wherein: Two said front wrapping mechanism (7) includes front C-shaped plate (701), two said front C-shaped plate (701) is longitudinally fixedly provided with two clamping plates (702) at the back.

3. The multi-layered composite reinforced PET sheet according to claim 2, wherein: Two said rear wrapping mechanism (8) includes rear C-shaped plate (801), two said rear C-shaped plate (801) is provided with recess (802) on the inner side, and two said rear C-shaped plate (801) is provided with clamping groove (803) on the front side.

4. The multi-layered composite reinforced PET sheet according to claim 3, wherein: The alternating connection layer (3) includes a plurality of polyester elastomer (301), and a plurality of polyester elastomer (301) is fixedly provided with thermoplastic elastomer (302) between two.

5. The multi-layered composite reinforced PET sheet as claimed in claim 3, wherein: Two said clamping plate (702) is consistent with the size of the clamping groove (803).

6. The multi-layered composite reinforced PET sheet as claimed in claim 1, wherein: The material of said chemical stability layer (6) is UV curing coating.

7. The multi-layered composite reinforced PET sheet as claimed in claim 1, wherein: The material of said insulating layer (4) is glass fiber.

8. The multi-layered composite reinforced PET sheet as claimed in claim 1, wherein: The material of said heat-resistant layer (2) is polyurethane glue.

9. The multi-layered composite reinforced PET sheet as claimed in claim 1, wherein: The material of the partition layer (1) is fluorocarbon resin based nanocomposite coating.

10. The multi-layered composite reinforced PET sheet as claimed in claim 4, wherein: Two said heat dissipation mechanism (9) includes C-shaped pressing plate (901), two said C-shaped pressing plate (901) is longitudinally provided with two through grooves (902) on the front side, and two said C-shaped pressing plate (901) is provided with a plurality of extension heat dissipation holes (903) on the opposite side.

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