PETG (Polyethylene Terephthalate Glycol) composite film for automotive trim

Abstract

The utility model relates to the technical field, and discloses an automotive trim PETG composite film which comprises a roll shaft and a PETG composite film body, butt joint rods are fixedly installed at the two ends of the roll shaft, protruding points are arranged on the surface of the roll shaft, and a bayonet is formed in the middle of the surface of the roll shaft. Through the arrangement of the adsorption layer, the static electricity removing layer, the insulating layer, the buffer layer, the temperature-resistant layer, the flame-retardant layer and the adhesive layer, harmful substances such as formaldehyde in a vehicle can be adsorbed to a certain extent by adopting the adsorption layer, and dust can be effectively prevented from being adsorbed on the surface of the film layer through static electricity by arranging the static electricity removing layer on the surface; the insulating layer arranged on the surface can block static electricity of a vehicle body from static electricity in air, the buffer layer arranged on the surface can effectively guarantee impact resistance of the film layer, the temperature-resistant layer arranged on the surface can improve the temperature-resistant effect of the film layer, and the flame-retardant layer arranged on the surface can prevent fire disasters caused by fire of the high-temperature film layer. The adhesive layer is arranged on the surface, so that the adhesion effect of the film layer can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a PETG composite film for automobile interior decoration. Background Art

[0002] PETG composite film is a non-crystalline copolyester. The commonly used comonomer of PETG is 1,4-cyclohexanedimethanol (CHDM), and its full name is polyethylene terephthalate-1,4-cyclohexanedimethanol. It is a product of polycondensation of terephthalic acid (PTA), ethylene glycol (EG), and 1,4-cyclohexanedimethanol (CHDM). Compared with PET, it has more 1,4-cyclohexanedimethanol comonomer, and compared with PCT, it has more ethylene glycol comonomer. Therefore, the performance of PETG is very different from that of PET and PCT, and it has its own uniqueness.

[0003] During use, the existing PETG composite film will produce adhesive on the surface of the rolled film after use due to the presence of adhesive on its surface, which will lead to dust adsorption. In addition, the roller of the existing PETG composite film will slide during the film rolling process, making it difficult to roll up. Therefore, the utility model introduces a PETG composite film for automotive interior. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a PETG composite film for automobile interior decoration, which has the advantages of being able to avoid dust absorption and being convenient for rolling up, and solves the problems raised in the background technology.

[0005] The utility model provides the following technical solution: a PETG composite film for automobile interior, comprising: a roller and a PETG composite film, the two ends of the roller are fixedly mounted with docking rods, the surface of the roller is provided with convex points, and the middle of the surface of the roller is provided with a bayonet;

[0006] The PETG composite film includes an adsorption layer, an antistatic layer is provided at the bottom of the adsorption layer, an insulating layer is provided at the bottom of the antistatic layer, a buffer layer is provided at the bottom of the insulating layer, a heat-resistant layer is provided at the bottom of the buffer layer, a flame-retardant layer is provided at the bottom of the heat-resistant layer, and an adhesive layer is provided at the bottom of the flame-retardant layer.

[0007] Preferably, there are several convex points, and the several convex points are evenly distributed on the surface of the roller.

[0008] Preferably, the width and thickness of one end of the PETG composite film are smaller than the length and thickness of the bayonet.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The automobile interior PETG composite film has convex points on the surface of the roller and a bayonet opening on the surface of the roller. One end of the PETG composite film is inserted into the bayonet opening to roll up the PETG composite film. The device can effectively prevent the PETG composite film from sliding during the rolling process, and the convex points can be used to quickly roll up the PETG composite film, thereby improving the rolling speed of the PETG composite film.

[0011] 2. The automotive interior PETG composite film is provided with an adsorption layer, an antistatic layer, an insulating layer, a buffer layer, a heat-resistant layer, a flame-retardant layer, and an adhesive layer. The adsorption layer can adsorb harmful substances such as formaldehyde in the car to a certain extent, the antistatic layer provided on the surface can effectively prevent dust from being adsorbed on the surface of the film layer through static electricity, the insulating layer provided on the surface can isolate the static electricity of the car body from the static electricity in the air, the buffer layer provided on the surface can effectively ensure the impact resistance of the film layer, the heat-resistant layer provided on the surface can improve the heat resistance of the film layer, the flame-retardant layer provided on the surface can prevent fires caused by high-temperature film fires, and the adhesive layer provided on the surface can improve the adhesion effect of the film layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0013] Figure 2 This is a schematic diagram of the roller structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the layers of the PETG composite film of the utility model.

[0015] In the figure: 1. roller; 2. PETG composite film; 3. docking rod; 4. bayonet; 5. bump; 6. adsorption layer; 7. antistatic layer; 8. insulation layer; 9. buffer layer; 10. heat-resistant layer; 11. flame-retardant layer; 12. adhesive layer. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3A PETG composite film for automobile interior decoration comprises: a roller 1 and a PETG composite film 2, docking rods 3 are fixedly installed at both ends of the roller 1, convex points 5 are arranged on the surface of the roller 1, and a bayonet 4 is opened in the middle of the surface of the roller 1; the convex points 5 are arranged on the surface of the roller 1, and the bayonet 4 opened on the surface of the roller 1 is matched, one end of the PETG composite film 2 is extended into the inside of the bayonet 4, and the PETG composite film 2 is rolled up. This device can effectively prevent the PETG composite film 2 from sliding during the rolling process, and the convex points 4 can be matched to quickly roll up the PETG composite film 2, thereby improving the rolling speed of the PETG composite film 2.

[0018] The PETG composite film 2 includes an adsorption layer 6, a static elimination layer 7 is provided at the bottom of the adsorption layer 6, an insulating layer 8 is provided at the bottom of the static elimination layer 7, a buffer layer 9 is provided at the bottom of the insulating layer 8, a heat-resistant layer 10 is provided at the bottom of the buffer layer 9, a flame-retardant layer 11 is provided at the bottom of the heat-resistant layer 10, and an adhesive layer 12 is provided at the bottom of the flame-retardant layer 11. The adsorption layer 6, the static elimination layer 7, the insulating layer 8, the buffer layer 9, the heat-resistant layer 10, the flame-retardant layer 11, and the adhesive layer 12 are provided. The adsorption layer 6 can adsorb harmful substances such as formaldehyde in the car to a certain extent, the static elimination layer 7 is provided on the surface, which can effectively prevent dust from being adsorbed on the surface of the film layer through static electricity, the insulating layer 8 is provided on the surface, and the static electricity of the car body can be isolated from the static electricity in the air, the buffer layer 9 is provided on the surface, which can effectively ensure the impact resistance of the film layer, the heat-resistant layer 10 is provided on the surface, which can improve the heat resistance of the film layer, the flame-retardant layer 11 is provided on the surface, which can prevent fires caused by high-temperature film fires, and the adhesive layer 12 is provided on the surface.

[0019] There are several convex points 5 , which are evenly distributed on the surface of the roller 1 . The convex points 5 cooperate with the convex points 4 to quickly roll up the PETG composite film 2 , thereby increasing the rolling speed of the PETG composite film 2 .

[0020] Among them, the width and thickness of one end of the PETG composite film 2 are smaller than the length and thickness of the bayonet 4. The extruded sheet of the PETG composite film 2 is usually 15 to 20 times tougher than general acrylic and 5 to 10 times tougher than impact-modified acrylic. The PETG composite film 2 has sufficient bearing capacity during processing, transportation and trial use, which helps to prevent rupture.

[0021] The PETG composite film 2 is a linear homopolymer polyester formed by polycondensation of diol ethylene glycol (EG) and dibasic acid terephthalic acid (TPA).

[0022] 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.

[0023] 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 PETG composite film for automobile interior, characterized in that: include: A roller (1) and a PETG composite film (2), wherein docking rods (3) are fixedly mounted at both ends of the roller (1), a convex point (5) is provided on the surface of the roller (1), and a bayonet (4) is provided in the middle of the surface of the roller (1); The PETG composite film (2) comprises an adsorption layer (6), a static-eliminating layer (7) is provided at the bottom of the adsorption layer (6), an insulating layer (8) is provided at the bottom of the static-eliminating layer (7), a buffer layer (9) is provided at the bottom of the insulating layer (8), a heat-resistant layer (10) is provided at the bottom of the buffer layer (9), a flame-retardant layer (11) is provided at the bottom of the heat-resistant layer (10), and an adhesive layer (12) is provided at the bottom of the flame-retardant layer (11).

2. The automotive interior PETG composite film according to claim 1, characterized in that: There are a plurality of convex points (5), and the plurality of convex points (5) are evenly distributed on the surface of the roller (1).

3. The automotive interior PETG composite film according to claim 1, characterized in that: The width and thickness of one end of the PETG composite film (2) are smaller than the length and thickness of the bayonet (4).

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