Novel high-strength plastic film

Abstract

The utility model discloses a novel high-strength plastic film, which consists of a multi-layer structure and comprises a polyethylene glycol terephthalate polymer layer, a carbon fiber composite material layer and a polyethylene layer which are tightly combined through a polyester adhesive layer. The thickness of the polyethylene glycol terephthalate polymer layer is 50-200 microns, the thickness of the carbon fiber composite material layer is 20-100 microns, and the thickness of the polyester adhesive layer is 1-10 microns. In addition, a metal ceramic coating is further arranged between the carbon fiber composite material layer and the bonding layer, the coating can be a titanium carbonitride layer or a chromium nitride layer, and the thickness of the coating is 10-50 micrometers. The plastic film with the multi-layer structure has excellent hardness and wear resistance, and is suitable for the fields of packaging, buildings, automotive trim, electronic product protective films and the like. By controlling the material and thickness of each layer, a high-performance and high-strength plastic film solution is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic films, in particular to a novel high-strength plastic film. Background Art

[0002] Plastic films are widely used in a variety of fields such as packaging, agricultural coverings, construction and medical due to their lightweight, flexible and cost-effective characteristics. However, the hardness of traditional plastic films is generally low, which limits their use in applications that require higher abrasion and scratch resistance. In certain industrial and commercial environments, plastic films may suffer physical damage, resulting in a decrease in their functionality and aesthetics, and may even affect their protective performance and service life.

[0003] In view of this, the inventor specially designed a new type of high-strength plastic film, and this case was thus generated. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the present application is to provide a new type of high-strength plastic film, which at least solves the problem that the existing plastic film is not hard enough and is easily damaged.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] The present application provides a novel high-strength plastic film, comprising a polyethylene terephthalate polymer layer, a carbon fiber composite material layer and a polyethylene layer stacked in sequence, an adhesive layer being arranged between the polyethylene terephthalate polymer layer and the carbon fiber composite material layer, and an adhesive layer being arranged between the carbon fiber composite material layer and the polyethylene layer.

[0009] In a further embodiment, the adhesive layer is a polyester adhesive layer.

[0010] In a further embodiment, the polyethylene terephthalate polymer layer has a thickness of 50-200 microns.

[0011] In a further embodiment, the carbon fiber composite material layer has a thickness of 20-100 microns.

[0012] In a further embodiment, the polyethylene layer has a thickness of 20-100 microns.

[0013] In a further embodiment, the polyester adhesive layer has a thickness of 1-10 microns.

[0014] In a further embodiment, a metal ceramic coating is provided between the fiber composite material layer and the adhesive layer.

[0015] In a further embodiment, the metal ceramic coating is a titanium carbonitride layer.

[0016] In a further embodiment, the metal ceramic coating is a chromium nitride layer.

[0017] In a further embodiment, the metal ceramic coating has a thickness of 10-50 microns.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] By stacking polyethylene terephthalate polymer layers, carbon fiber composite layers and polyethylene layers, the overall mechanical strength of the plastic film is significantly improved. The polyethylene terephthalate polymer layer provides good basic strength, the carbon fiber composite layer adds additional rigidity and strength, and the polyethylene layer provides flexibility and impact resistance.

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached picture:

[0023] Figure 1 Schematic diagram of each layer structure of the utility model Figure 1 ;

[0024] Figure 2 Schematic diagram of each layer structure of the utility model Figure 2 .

[0025] Explanation of reference numerals in the figure: 10, polyethylene terephthalate polymer layer; 20, adhesive layer; 30, metal ceramic coating; 40, carbon fiber composite material layer; 50, polyethylene layer. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] Figure 1 and Figure 2As shown, the utility model provides a novel high-strength plastic film, comprising a polyethylene terephthalate polymer layer 10, a carbon fiber composite material layer 40 and a polyethylene layer 50 stacked in sequence, an adhesive layer 20 is arranged between the polyethylene terephthalate polymer layer 10 and the carbon fiber composite material layer 40, and an adhesive layer 20 is arranged between the carbon fiber composite material layer 40 and the polyethylene layer 50. Through these three material layers, the overall mechanical strength of the plastic film is significantly improved. The polyethylene terephthalate polymer layer 10 provides good basic strength, the carbon fiber composite material layer 40 adds additional rigidity and strength, and the polyethylene layer 50 provides flexibility and impact resistance.

[0028] Example 1

[0029] This embodiment describes a method for preparing a novel high-strength plastic film, wherein a polyethylene glycol terephthalate (PET) polymer material is prepared into a PET polymer layer with a thickness of 50-200 microns by an extrusion molding process. Next, a layer of polyester adhesive is evenly coated on the PET polymer layer, and the thickness is controlled to be 1-10 microns to form a first adhesive layer 20. Subsequently, a pre-prepared carbon fiber composite material layer 40 is placed on the first adhesive layer 20, and the thickness of the carbon fiber composite material layer 40 is 20-100 microns. A layer of polyester adhesive is coated again on this carbon fiber composite material layer 40 to form a second adhesive layer 20. A polyethylene material is prepared into a polyethylene layer 50 by an extrusion molding process, and is placed on the second adhesive layer 20. The entire composite film is interlayered by a hot pressing process to ensure that the layers are tightly combined to form a novel high-strength plastic film.

[0030] Example 2

[0031] On the basis of Example 1, this example adds the application of a metal ceramic coating 30. Between the carbon fiber composite material layer 40 and the second adhesive layer 20, a layer of metal ceramic coating 30 is uniformly coated by physical vapor deposition (PVD) or chemical vapor deposition (CVD) technology. In this example, the metal ceramic coating 30 is selected as a titanium carbonitride layer, and its thickness is controlled to be 10-50 microns. The addition of this coating further enhances the wear resistance and corrosion resistance of the plastic film, and improves the stability and durability of the overall structure.

[0032] Example 3

[0033] This embodiment is similar to the embodiment 2, but is different in the selection of the metal ceramic coating 30. In this embodiment, the metal ceramic coating 30 is a chromium nitride layer, which is also prepared by PVD or CVD technology, and the thickness is maintained at 10-50 microns. The chromium nitride layer provides different physical and chemical properties, so that the performance of the plastic film in a specific environment is optimized, such as application in a high temperature or strong corrosive environment.

[0034] The overall mechanical strength of the plastic film is significantly improved by laminating the polyethylene terephthalate polymer layer 10, the carbon fiber composite material layer 40 and the polyethylene layer 50. The polyethylene terephthalate polymer layer 10 provides good basic strength, the carbon fiber composite material layer 40 adds additional rigidity and strength, and the polyethylene layer 50 provides flexibility and impact resistance.

[0035] The use of a polyester adhesive layer as the adhesive layer 20 ensures a firm bond between the layers and prevents peeling between the layers, thereby improving the overall stability and durability of the plastic film.

[0036] The thickness of each layer is precisely controlled within a specific range (such as 1050-200 microns for the polyethylene terephthalate polymer layer, 4020-100 microns for the carbon fiber composite layer, 1-10 microns for the polyester adhesive layer, and 20-100 microns for the polyethylene layer 50), which helps optimize the performance of the plastic film so that it remains light and thin while still having the required strength and toughness.

[0037] By providing a metal ceramic coating 30 (such as a titanium carbonitride layer or a chromium nitride layer) between the carbon fiber composite material layer 40 and the adhesive layer 20, the surface hardness and wear resistance of the plastic film are significantly improved, and it is suitable for applications requiring high wear resistance.

[0038] Due to its high strength and good comprehensive properties, this plastic film is suitable for a variety of fields, including but not limited to packaging materials, building materials, automotive interiors and electronic product protective films, etc., providing a high-performance material option for these fields.

[0039] In summary, the high-strength plastic film of the utility model, through its unique multi-layer structure design, achieves high strength, high wear resistance and good durability while maintaining lightness, thinness and flexibility, meeting the needs of modern industry for high-performance materials.

[0040] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A new type of high-strength plastic film, characterized in that: The invention comprises a polyethylene terephthalate polymer layer (10), a carbon fiber composite material layer (40) and a polyethylene layer (50) which are stacked in sequence, wherein an adhesive layer (20) is arranged between the polyethylene terephthalate polymer layer (10) and the carbon fiber composite material layer (40), and an adhesive layer (20) is arranged between the carbon fiber composite material layer (40) and the polyethylene layer (50).

2. A novel high-strength plastic film according to claim 1, characterized in that: The adhesive layer (20) is a polyester adhesive layer.

3. A novel high-strength plastic film according to claim 1, characterized in that: The polyethylene terephthalate polymer layer (10) has a thickness of 50-200 microns.

4. A novel high-strength plastic film according to claim 1, characterized in that: The carbon fiber composite material layer (40) has a thickness of 20-100 micrometers.

5. A novel high-strength plastic film according to claim 1, characterized in that: The thickness of the polyethylene layer (50) is 20-100 microns.

6. A novel high-strength plastic film according to claim 2, characterized in that: The polyester adhesive layer has a thickness of 1-10 microns.

7. A novel high-strength plastic film according to claim 1, characterized in that: A metal ceramic coating (30) is also provided between the fiber composite material layer and the adhesive layer (20).

8. A novel high-strength plastic film according to claim 7, characterized in that: The metal ceramic coating (30) is a titanium carbonitride layer.

9. A novel high-strength plastic film according to claim 7, characterized in that: The metal ceramic coating (30) is a chromium nitride layer.

10. A novel high-strength plastic film according to claim 7, characterized in that: The thickness of the metal ceramic coating (30) is 10-50 microns.

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