Flame-retardant polyester film

Abstract

The utility model relates to a flame-retardant polyester film, which belongs to the field of polyester films and comprises a polyester film body, and flame-retardant structures for flame retardance of the polyester film body are arranged on two sides of the polyester film body. The flame-retardant structure comprises a first flame-retardant layer welded to the top of the polyester film body, a second flame-retardant layer welded to the bottom of the polyester film body, an isolation layer welded to the bottom of the second flame-retardant layer, a corrosion-resistant layer welded to the top of the first flame-retardant layer, and an antistatic layer welded to the top of the corrosion-resistant layer. According to the flame-retardant polyester film, through cooperation of the first flame-retardant layer and the second flame-retardant layer, the heat resistance of the polyester film body can be enhanced, due to the fact that the flame retardant is added into the polyester film body, the flame-retardant performance of the polyester film body is improved, when equipment is overheated, the polyester film body is not prone to being burnt through, and compared with an existing polyester film, the flame-retardant polyester film has the advantages that the flame-retardant performance is improved. And long-term use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester films, in particular to a flame-retardant polyester film. Background Art

[0002] Polyester film is a polymer plastic film made of polyester material with excellent physical and mechanical properties and optical properties, such as good transparency, low haze and high gloss. It is widely used in packaging, printing, electronics, medical and other fields. The main characteristics of polyester film include high transparency, moisture resistance, oil resistance, odor resistance and good processing performance. In addition, polyester film also has low gas and water vapor permeability, so it is often used as a packaging material for food and medicine to extend the shelf life of the product. Polyester film is also used in the new energy field, such as packaging materials for solar cells. In addition, polyester film is also used to make heat shrinkable film for cluster packaging, sleeve labeling, sealed packaging, battery labeling and other fields; there is also polyester twist film, which is a high-performance and environmentally friendly new product widely used in the packaging of candy, snacks, gifts and fruits. Polyester film can be classified according to thickness, purpose and surface treatment, such as micro-thin, thin, medium-thick and thick polyester film, packaging film, printing film, electronic film and medical film and other polyester films, as well as untreated polyester film and polyester film with surface treatment such as coating and plating.

[0003] Although the existing polyester film has the advantages of good transparency, low haze and high gloss, the flame retardant effect of the existing polyester film is poor because the equipment is prone to overheating. As a result, the polyester film is easily burned through when the equipment is overheated. At the same time, it cannot effectively isolate the influence of the external environment or equipment, and has poor anti-static effect, which is not conducive to long-term use. Therefore, a flame-retardant polyester film is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a flame-retardant polyester film having the advantages of flame retardancy, reduction of external influences, corrosion resistance and anti-static properties. It solves the problem that the existing polyester film has poor flame retardancy, resulting in the polyester film being easily burned through when the equipment is overheated, and at the same time, it cannot effectively isolate the influence of the external environment or equipment, and has poor anti-static effects, which is not conducive to long-term use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flame-retardant polyester film, comprising a polyester film body, both sides of which are provided with flame-retardant structures for flame-retarding the polyester film body;

[0006] The flame retardant structure includes a first flame retardant layer welded to the top of a polyester film body, a second flame retardant layer welded to the bottom of the polyester film body, an insulating layer welded to the bottom of the second flame retardant layer, a corrosion resistant layer welded to the top of the first flame retardant layer, and an antistatic layer welded to the top of the corrosion resistant layer.

[0007] Furthermore, a guide layer is bonded to the top of the polyester film body, the guide layer is made of plastic, and a strip groove is provided on the top of the guide layer.

[0008] Furthermore, a tough sheet is welded on the top of the guide layer, and the tough sheet is rubber.

[0009] Furthermore, the first flame retardant layer and the second flame retardant layer have the same thickness, and both the first flame retardant layer and the second flame retardant layer are made of polyphenylene sulfide.

[0010] Furthermore, the insulating layer is polytetrafluoroethylene.

[0011] Furthermore, the corrosion-resistant layer is polypropylene.

[0012] Compared with the prior art, the utility model provides a flame retardant polyester film, which has the following beneficial effects:

[0013] 1. The flame-retardant polyester film can enhance the heat resistance of the polyester film body through the cooperation of the first flame-retardant layer and the second flame-retardant layer, and because the flame retardant is added inside the polyester film body, the flame retardant performance of the polyester film body is increased. When the equipment is overheated, the polyester film body is not easily burned through. At the same time, the insulating layer can isolate the influence of the external environment or equipment, the corrosion-resistant layer has good corrosion resistance, and the antistatic layer can enhance the antistatic performance of the polyester film body, and thus compared with the existing polyester film, it is more conducive to long-term use.

[0014] 2. The flame-retardant polyester film is provided with a guide layer and strip grooves. When external liquid flows through the top of the guide layer, the strip grooves can play a role of drainage, so that the liquid can quickly flow out along the strip grooves, thereby preventing the polyester film body from being penetrated. In addition, by providing a toughness sheet, the toughness can be enhanced to prevent the polyester film body from being directly torn by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure shown;

[0017] Figure 3 It is a structural side view of the guide layer and the toughness sheet of the utility model.

[0018] In the figure: 1 polyester film body, 2 first flame retardant layer, 3 second flame retardant layer, 4 isolation layer, 5 corrosion resistant layer, 6 antistatic layer, 7 guide layer, 8 strip grooves, 9 tough sheet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] See also Figure 1-3 , in this embodiment, it includes a polyester film body 1, and both sides of the polyester film body 1 are provided with a flame retardant structure for flame retardant the polyester film body 1;

[0022] The flame retardant structure includes a first flame retardant layer 2 welded to the top of the polyester film body 1, a second flame retardant layer 3 welded to the bottom of the polyester film body 1, an insulating layer 4 welded to the bottom of the second flame retardant layer 3, a corrosion resistant layer 5 welded to the top of the first flame retardant layer 2, and an antistatic layer 6 welded to the top of the corrosion resistant layer 5. The heat resistance of the polyester film body 1 can be enhanced by the cooperation of the first flame retardant layer 2 and the second flame retardant layer 3. Since a flame retardant is added inside the polyester film body 1, the flame retardant performance of the polyester film body 1 is increased. When the equipment is overheated, the polyester film body 1 is not easily burned through.

[0023] At the same time, the insulating layer 4 can isolate the influence of the external environment or equipment, the corrosion-resistant layer 5 has good corrosion resistance, and the antistatic layer 6 can enhance the antistatic performance of the polyester film body 1, which is more conducive to long-term use than the existing polyester film.

[0024] Among them, the thickness of the first flame retardant layer 2 and the second flame retardant layer 3 are consistent, and the first flame retardant layer 2 and the second flame retardant layer 3 are both polyphenylene sulfide. The first flame retardant layer 2 and the second flame retardant layer 3 made of polyphenylene sulfide have excellent high temperature resistance, flame retardancy and balanced physical and mechanical properties.

[0025] It should be noted that the insulating layer 4 is made of polytetrafluoroethylene. The insulating layer 4 made of polytetrafluoroethylene has strong acid resistance, alkali resistance and resistance to various organic solvents, and can effectively isolate the influence of the external environment or equipment on the polyester film body 1.

[0026] It should be understood that the corrosion-resistant layer 5 is made of polypropylene. The corrosion-resistant layer 5 made of polypropylene has uniformly good corrosion resistance, and the overall cost is low and the cost performance is high, thereby achieving the effect of reducing economic costs.

[0027] Embodiment 2:

[0028] See also Figure 1 and Figure 3 On the basis of the first embodiment, a guide layer 7 is bonded to the top of the polyester film body 1. The guide layer 7 is plastic. A strip groove 8 is opened on the top of the guide layer 7. When the external liquid flows to the top of the guide layer 7, the strip groove 8 can play a role in drainage, so that the liquid can flow out quickly along the strip groove 8, thereby preventing the polyester film body 1 from being penetrated.

[0029] Among them, a tough sheet 9 is welded on the top of the guide layer 7. The tough sheet 9 is made of rubber. The tough sheet 9 made of rubber can enhance the toughness and prevent the polyester film body 1 from being directly torn by external force.

[0030] The working principle of the above embodiment is:

[0031] When the polyester film main body 1 is in use, the cooperation of the first flame retardant layer 2 and the second flame retardant layer 3 can enhance the heat resistance of the polyester film main body 1, and because the flame retardant is added inside the polyester film main body 1, the flame retardant performance of the polyester film main body 1 is increased, and when the equipment is overheated, the polyester film main body 1 is not easily burned through, and at the same time, the insulating layer 4 can isolate the influence of the external environment or equipment, the corrosion-resistant layer 5 has good corrosion resistance, and the antistatic layer 6 can enhance the antistatic performance of the polyester film main body 1. In addition, by providing the guide layer 7 and the strip groove 8, when the external liquid flows to the top of the guide layer 7, the strip groove 8 can play a role in drainage, so that the liquid can quickly flow out along the strip groove 8, thereby preventing the polyester film main body 1 from being infiltrated, and the toughness sheet 9 made of rubber can enhance the toughness and prevent the polyester film main body 1 from being directly torn by external force.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame retardant polyester film, comprising a polyester film body (1), characterized in that: Both sides of the polyester film body (1) are provided with flame retardant structures for flame retardantly treating the polyester film body (1); The flame retardant structure comprises a first flame retardant layer (2) welded to the top of a polyester film body (1), a second flame retardant layer (3) welded to the bottom of the polyester film body (1), an insulating layer (4) welded to the bottom of the second flame retardant layer (3), a corrosion resistant layer (5) welded to the top of the first flame retardant layer (2), and an antistatic layer (6) welded to the top of the corrosion resistant layer (5).

2. A flame retardant polyester film according to claim 1, characterized in that: A guide layer (7) is bonded to the top of the polyester film body (1); the guide layer (7) is made of plastic, and a strip groove (8) is provided on the top of the guide layer (7).

3. A flame retardant polyester film according to claim 2, characterized in that: A tough sheet (9) is welded to the top of the guide layer (7), and the tough sheet (9) is rubber.

4. The flame-retardant polyester film according to claim 1, characterized in that: The thickness of the first flame retardant layer (2) and the second flame retardant layer (3) are consistent, and the first flame retardant layer (2) and the second flame retardant layer (3) are both polyphenylene sulfide.

5. The flame-retardant polyester film according to claim 1, characterized in that: The insulating layer (4) is polytetrafluoroethylene.

6. The flame-retardant polyester film according to claim 1, characterized in that: The corrosion-resistant layer (5) is made of polypropylene.

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