Novel TPU film

Abstract

The utility model relates to the technical field of TPU (thermoplastic polyurethane) films, in particular to a novel TPU film, which comprises a TPU film layer, an organic silicon heat-resistant coating I is arranged above the TPU film layer, an organic silicon heat-resistant coating II is arranged below the TPU film layer, an acrylic acid coating II is arranged below the organic silicon heat-resistant coating I, and an acrylic acid coating II is arranged below the acrylic acid coating II. A high-temperature-resistant structure is arranged on one side of the first acrylic acid coating and comprises a first high-temperature-resistant layer, and the top of the first high-temperature-resistant layer is fixedly connected with the bottom of the first acrylic acid coating. Through cooperation of the TPU film layer and the high-temperature-resistant structure, the first high-temperature-resistant layer and the second high-temperature-resistant layer are polytitanate coatings, and the polytitanate coatings can bear high temperature which is usually 200 DEG C or above and even can bear the temperature of 300-500 DEG C or higher within a short time, so that the high-temperature resistance of the TPU film is improved conveniently, and damage caused when the TPU film is used in a high-temperature environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of TPU films, in particular to a new type of TPU film. Background Art

[0002] TPU refers to thermoplastic polyurethane elastomer rubber, a polymer material, mainly divided into polyester type and polyether type. It has a wide hardness range, is wear-resistant, oil-resistant, transparent, and has good elasticity. It is widely used in daily necessities, sporting goods, toys, decorative materials, clothing, shoemaking and other fields. TPU film is made on the basis of TPU granules through special processes such as calendering, casting, film blowing, and coating.

[0003] There is a new type of TPU film (application number: 202021569822.9) that can slow down the yellowing of the film under long-term sunlight exposure and increase the service life of the TPU film. The above-mentioned problem still exists. When using the TPU film, the above-mentioned device can improve the wear resistance and scratch resistance of the TPU film by setting an anti-scratch layer. However, since the ambient temperature of the surrounding environment is different when the TPU film is in use, it is not convenient to improve the high temperature resistance of the TPU film, and it is easy to be damaged when used in a high temperature environment. Moreover, when the anti-scratch layer is set to improve the wear resistance, it is not convenient to improve the flame retardant ability of the TPU film, and the safety of use is poor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as it is difficult to improve the high temperature resistance of TPU film, which is prone to damage when used in high temperature environment, it is difficult to improve the flame retardancy of TPU film while improving wear resistance, and the poor safety of use, and to propose a new type of TPU film.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A new TPU film is designed, including a TPU film layer, wherein a first organic silicone heat-resistant coating is provided on the top of the TPU film layer, a second organic silicone heat-resistant coating is provided below the TPU film layer, a second acrylic coating is provided below the first organic silicone heat-resistant coating, an first acrylic coating is provided on the top of the second organic silicone heat-resistant coating, and a high-temperature resistant structure is provided on one side of the first acrylic coating.

[0007] Preferably, the high temperature resistant structure includes a high temperature resistant layer 1, the top of the high temperature resistant layer 1 is fixedly connected to the bottom of the acrylic coating 1, the bottom of the high temperature resistant layer 1 is fixedly connected to the top of the silicone heat-resistant coating 2, a high temperature resistant layer 2 is provided on one side of the high temperature resistant layer 1, the bottom of the high temperature resistant layer 2 is fixedly connected to the top of the acrylic coating 2, and the top of the high temperature resistant layer 2 is fixedly connected to the bottom of the silicone heat-resistant coating 1.

[0008] Preferably, the bottom of the second acrylic coating is fixedly connected to the second epoxy anti-corrosion coating.

[0009] Preferably, the bottom of the second epoxy anti-corrosion coating is fixedly connected to the top of the TPU film layer.

[0010] Preferably, the top of the acrylic coating one is fixedly connected to an epoxy anti-corrosion coating one.

[0011] Preferably, the top of the epoxy anti-corrosion coating layer 1 is fixedly connected to the bottom of the TPU film layer.

[0012] The utility model proposes a novel TPU film, which has the following beneficial effects: through the cooperation of the TPU film layer and the high-temperature resistant structure, the device can be used in use by forming a polytitanate coating through the high-temperature resistant layer 1 and the high-temperature resistant layer 2. The polytitanate coating can withstand high temperatures, usually above 200°C, and can even withstand temperatures of 300-500°C or higher for a short period of time, thereby facilitating the improvement of the high-temperature resistance of the TPU film and avoiding damage when used in a high-temperature environment;

[0013] Through the cooperation of the TPU film layer, the silicone heat-resistant coating ‌1 and the silicone heat-resistant coating ‌2, the device can have excellent heat resistance when in use, can remain stable in high temperature environments, perform well in high temperature environments, and has a long-term temperature resistance range from 200°C to 800°C. It has excellent weather resistance, good water resistance and chemical resistance, and also shows good wear resistance, thereby improving the wear resistance while improving the flame retardant ability of the TPU film and improving safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the TPU film layer, airbag and epoxy anti-corrosion coating of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the acrylic coating 1, the organic silicon heat-resistant coating 2, and the high-temperature resistant layer 1 of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the TPU film layer, epoxy anti-corrosion coating 1 and epoxy anti-corrosion coating 2 of the present invention;

[0018] Figure 5 This is a schematic structural diagram of the TPU film layer, acrylic coating layer, and epoxy anti-corrosion coating layer of the present invention;

[0019] Figure 6 This is a schematic structural diagram of the high-temperature resistant layer 2, acrylic coating 2 and organic silicon heat-resistant coating 1 of the present invention.

[0020] In the figure: 1. TPU film layer, 2. High-temperature resistant structure, 2a1. High-temperature resistant layer 1, 2a2. High-temperature resistant layer 2, 2b1. Airbag, 3. Acrylic coating 1, 4. Acrylic coating 2, 5. Silicone heat-resistant coating 1, 6. Silicone heat-resistant coating 2, 7. Epoxy anti-corrosion coating 1, 8. Epoxy anti-corrosion coating 2. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example 1: Refer to the attached Figure 1-6 : In this embodiment, a new type of TPU film includes a TPU film layer 1, a silicone heat-resistant coating ‌15‌ is provided above the TPU film layer 1, and a silicone heat-resistant coating ‌26‌ is provided below the TPU film layer 1. The silicone heat-resistant coating ‌15‌ and the silicone heat-resistant coating ‌26‌ have excellent heat resistance, can remain stable in a high temperature environment, perform well in a high temperature environment, have a long-term temperature resistance range from 200°C to 800°C, have excellent weather resistance, good water resistance and chemical resistance, and also show good wear resistance.

[0023] An acrylic coating 24 is provided below the silicone heat-resistant coating ‌ 5 , an acrylic coating 3 is provided above the silicone heat-resistant coating ‌ 6 , and the bottom of the acrylic coating 24 is fixedly connected to an epoxy anti-corrosion coating 28 . The acrylic coating 13 and the acrylic coating 24 have excellent weather resistance and can resist the influence of natural environmental factors such as ultraviolet rays and temperature changes. The bottom of the epoxy anti-corrosion coating 28 is fixedly connected to the top of the TPU film layer 1 , and the top of the acrylic coating 3 is fixedly connected to an epoxy anti-corrosion coating 7 .

[0024] The top of the epoxy anti-corrosion coating 7 is fixedly connected to the bottom of the TPU film layer 1. The epoxy anti-corrosion coating 7 and the epoxy anti-corrosion coating 2 8 have good adhesion and resistance to chemical corrosion. The epoxy anti-corrosion coating 7 and the epoxy anti-corrosion coating 2 8 ensure the adhesion connection between adjacent layers, and at the same time can effectively block the chemical substances that penetrate into here. A high-temperature resistant structure 2 is provided on one side of the acrylic coating 3. The high-temperature resistant structure 2 facilitates improving the high-temperature resistance of the TPU film and avoiding damage when used in a high-temperature environment.

[0025] The high temperature resistant structure 2 includes a high temperature resistant layer 2a1, the top of the high temperature resistant layer 2a1 is fixedly connected to the bottom of the acrylic coating 3, the bottom of the high temperature resistant layer 2a1 is fixedly connected to the top of the silicone heat-resistant coating ‌26, and a high temperature resistant layer 2a2 is provided on one side of the high temperature resistant layer 2a1. The high temperature resistant layer 2a1 and the high temperature resistant layer 2a2 are polytitanate coatings. The polytitanate coating can withstand higher temperatures, usually above 200°C, and can even withstand temperatures of 300-500°C or higher in a short period of time. The bottom of the high temperature resistant layer 2a2 is fixedly connected to the top of the acrylic coating 24, and the top of the high temperature resistant layer 2a2 is fixedly connected to the bottom of the silicone heat-resistant coating ‌25, so as to improve the high temperature resistance of the TPU film and avoid damage when used in a high temperature environment.

[0026] Working principle:

[0027] When using TPU film:

[0028] First, the high-temperature resistant layer 2a1 and the high-temperature resistant layer 2a2 are polytitanate coatings. Polytitanate coatings can withstand high temperatures, usually above 200°C, and can even withstand temperatures of 300-500°C or higher for a short period of time, thereby improving the high-temperature resistance of the TPU film layer 1. The silicone heat-resistant coating ‌15 and the silicone heat-resistant coating ‌26 have excellent heat resistance, can remain stable in high-temperature environments, and perform well in high-temperature environments. The long-term temperature resistance range is from 200°C to 800°C, and they have excellent weather resistance, water resistance, and chemical resistance. At the same time, they also show good wear resistance, thereby improving the wear resistance while improving the flame retardancy of the TPU film layer 1. The acrylic coating 13 and the acrylic coating 24 have excellent weather resistance and can resist the influence of natural environmental factors such as ultraviolet rays and temperature changes, thereby avoiding the influence of ultraviolet rays on the TPU film layer 1. The epoxy anti-corrosion coating 17 and the epoxy anti-corrosion coating 28 have good adhesion and resistance to chemical corrosion, thereby improving the corrosion resistance of the TPU film layer 1.

[0029] Example 2: Refer to the attached Figure 1-6: In this embodiment, a new type of TPU film, wherein the high temperature resistant structure 2 can also include an airbag 2b1, and the outer wall of the airbag 2b1 is fixedly connected to the inner wall of one side of the TPU film layer 1.

[0030] Working principle:

[0031] The provision of the airbag 2b1 can provide a certain buffer when subjected to squeezing force, thereby improving the pressure resistance.

[0032] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A novel TPU film, comprising a TPU film layer (1), characterized in that: A silicone heat-resistant coating (1) (5) is provided above the TPU film layer (1), a silicone heat-resistant coating (2) (6) is provided below the TPU film layer (1), an acrylic coating (2) (4) is provided below the silicone heat-resistant coating (1) (5), an acrylic coating (1) (3) is provided above the silicone heat-resistant coating (2) (6), and a high-temperature resistant structure (2) is provided on one side of the acrylic coating (1) (3).

2. A novel TPU film according to claim 1, characterized in that: The high temperature resistant structure (2) includes a high temperature resistant layer 1 (2a1), the top of the high temperature resistant layer 1 (2a1) is fixedly connected to the bottom of the acrylic coating 1 (3), the bottom of the high temperature resistant layer 1 (2a1) is fixedly connected to the top of the organic silicon heat resistant coating ‌2 (6), a high temperature resistant layer 2 (2a2) is provided on one side of the high temperature resistant layer 1 (2a1), the bottom of the high temperature resistant layer 2 (2a2) is fixedly connected to the top of the acrylic coating 2 (4), and the top of the high temperature resistant layer 2 (2a2) is fixedly connected to the bottom of the organic silicon heat resistant coating ‌1 (5).

3. The novel TPU film according to claim 1, characterized in that: The bottom of the acrylic coating layer 2 (4) is fixedly connected to the epoxy anti-corrosion coating layer 2 (8).

4. A novel TPU film according to claim 3, characterized in that: The bottom of the second epoxy anti-corrosion coating (8) is fixedly connected to the top of the TPU film layer (1).

5. The novel TPU film according to claim 1, characterized in that: The top of the acrylic coating (3) is fixedly connected to an epoxy anti-corrosion coating (7).

6. The novel TPU film according to claim 5, characterized in that: The top of the epoxy anti-corrosion coating (7) is fixedly connected to the bottom of the TPU film layer (1).

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