Fireproof composite film for aviation

Abstract

The utility model discloses a fireproof composite film for aviation, which comprises a polyester layer, an aramid fiber layer and a glass fiber layer are arranged below the polyester layer, the upper surface and the lower surface of the aramid fiber layer are respectively in close contact with the polyester layer and the glass fiber layer, the lower surface of the glass fiber layer is fixedly connected with a plurality of hot melt adhesive tapes, and the hot melt adhesive tapes are fixedly connected with the polyester layer. When the fireproof composite film is installed, the hot melt adhesive strips make close contact with the surface of the installation position of the fireproof composite film, gaps among the multiple hot melt adhesive strips form cavities, the hot melt adhesive strips, the polyester layer, the aramid fiber layer and the glass fiber layer are the same in length, silica gel sheets are fixedly connected to the front side and the rear side of the lower surface of the polyester layer, and the silica gel sheets are fixedly connected to the upper surface of the polyester layer. When the fireproof composite film is installed, the cavity is sealed at the installation position of the silica gel sheet and the fireproof composite film. By means of the structure, the attaching effect of the fireproof composite film and the installation position is improved, and the influence of external impurities on the using comfort of the fireproof composite film is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof composite film technical field, especially in aviation with fireproof composite film. BACKGROUND

[0002] The aviation fireproof composite film has high fire resistance, and the installation of the fireproof composite film usually adopts hot melt adhesive auxiliary installation or utilizes heat shrinkage film auxiliary, since the installation mode of the commonly used fireproof composite film is related to high temperature, and the surface of the fireproof composite film is flat, when the fireproof composite film is subjected to high temperature and appears thermal expansion, the adhesion effect of the fireproof composite film and the installation position is reduced, the installation stability of the fireproof composite film is affected, the practicability of the fireproof composite film is reduced, and the fireproof composite film disclosed in Chinese patent network "in aviation with fireproof composite film", the application number is "201520995918.4", the fireproof composite film improves the fire resistance through the polytetrafluoroethylene layer, the glass fiber layer and the polyvinyl chloride layer, but the adhesion effect of the fireproof composite film and the installation position cannot be directly improved when the fireproof composite film is used. SUMMARY

[0003] The utility model aims at least solves one of the technical problems existing in the prior art, provides an aviation fireproof composite film, improves the adhesion effect of the fireproof composite film, and reduces the influence of external impurities on the use comfort of the fireproof composite film.

[0004] The utility model discloses still provide with above -mentioned one kind aviation fireproof composite film, include: polyester layer, the lower surface of polyester layer is provided with aramid fiber layer, glass fiber layer, the upper and lower two surfaces of aramid fiber layer are closely contacted with polyester layer, glass fiber layer, the lower surface of glass fiber layer is fixedly connected with a plurality of hot melt adhesive strips, when installing the fireproof composite film, the surface of hot melt adhesive strip and the installation position of fireproof composite film is closely contacted, the gap between a plurality of hot melt adhesive strips forms cavity, the length of hot melt adhesive strip, polyester layer, aramid fiber layer, glass fiber layer four is same, the front and back two sides of the lower surface of polyester layer are fixedly connected with silica gel piece, when installing the fireproof composite film, the silica gel piece and the closed cavity of the installation position of fireproof composite film.

[0005] According to the aviation fireproof composite film, the width of the polyester layer is greater than the width of the aramid fiber layer, and the widths of the aramid fiber layer and the glass fiber layer are the same.

[0006] According to the aviation fireproof composite film, the lower surface of the polyester layer is provided with a fold, and the part of the polyester layer greater than the aramid fiber layer is closely connected with the silica gel piece through the fold.

[0007] The length of the silica gel sheet is same as the length of the polyester layer, and the two silica gel sheets are in close contact with the front and back surfaces of the aramid fiber layer and the glass fiber layer respectively.

[0008] Advantages:

[0009] Compared with the prior art, the aviation fireproof composite film improves the fire resistance by the polyester layer, the aramid fiber layer, the glass fiber layer, the hot melt adhesive strip and the cavity, and improves the thermal expansion space of the fireproof composite film during installation, and improves the effect of the fireproof composite film at the installation position, wherein the width, the crease and the silica gel sheet of the polyester layer close the cavity to avoid foreign matters from entering the gap between the fireproof composite film and the installation position, reduce the cleaning difficulty of the fireproof composite film, and improve the use comfort of the fireproof composite film. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further explained in connection with the drawings and embodiments;

[0011] Figure 1 It is the front view structure diagram of the split state of the utility model aviation fireproof composite film;

[0012] Figure 2 It is the back view structure diagram of the split state of the utility model aviation fireproof composite film;

[0013] Figure 3 It is the front view structure diagram of the split state of the utility model aviation fireproof composite film;

[0014] Figure 4 It is the back view structure diagram of the split state of the utility model aviation fireproof composite film.

[0015] Legend:

[0016] 1, polyester layer;2, aramid fiber layer;3, glass fiber layer;4, hot melt adhesive strip;5, cavity;6, silica gel sheet;7, crease. DETAILED DESCRIPTION

[0017] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0018] Reference Figures 1-4The utility model discloses an aviation fireproof composite film, which comprises a polyester layer 1, an aramid fiber layer 2 and a glass fiber layer 3 arranged below the polyester layer 1, the upper and lower surfaces of the aramid fiber layer 2 being in close contact with the polyester layer 1 and the glass fiber layer 3 respectively, the above components forming the basic structure of the fireproof composite film, the polyester layer 1 being used to isolate the aramid fiber layer 2 and the glass fiber layer 3, and the polyester layer 1 being exposed to the air, the aramid fiber layer 2 being used to improve the impact resistance of the fireproof composite film, and the glass fiber layer 3 being used to improve the overall rigidity of the fireproof composite film, the width of the polyester layer 1 being greater than the width of the aramid fiber layer 2, and the widths of the aramid fiber layer 2 and the glass fiber layer 3 being the same, the lower surface of the polyester layer 1 being provided with a crease 7, the part of the polyester layer 1 greater than the aramid fiber layer 2 being in close contact with a silica gel sheet 6 through the crease 7, and the width of the polyester layer 1 and the crease 7 being used to isolate the silica gel sheet 6, so as to reduce the influence of external factors on the service life of the silica gel sheet 6.

[0019] The lower surface of the glass fiber layer 3 is fixedly connected with a plurality of hot melt adhesive strips 4, the hot melt adhesive strips 4 being in close contact with the surface of the installation position of the fireproof composite film during installation of the fireproof composite film, the hot melt adhesive strips 4 being used to fix the fireproof composite film, the gaps between the plurality of hot melt adhesive strips 4 forming cavities 5, the cavities 5 being used to provide space for thermal expansion deformation of the hot melt adhesive strips 4, the lengths of the four components of the hot melt adhesive strips 4, the polyester layer 1, the aramid fiber layer 2 and the glass fiber layer 3 being the same, the front and rear sides of the lower surface of the polyester layer 1 being fixedly connected with silica gel sheets 6, the lengths of the silica gel sheets 6 being the same as the length of the polyester layer 1, and the two silica gel sheets 6 being in close contact with the front and rear surfaces of the aramid fiber layer 2 and the glass fiber layer 3 respectively, the silica gel sheets 6 being used to close the residual space of the cavities 5 during installation of the fireproof composite film

[0020] Working principle: according to the daily installation mode of the fireproof composite film, the hot melt adhesive strips 4 are fixed from the middle part of the fireproof composite film to the edge, the hot melt adhesive strips 4 are melted by heat, the cavities 5 provide space for deformation of the melted hot melt adhesive strips 4, the silica gel sheets 6 are not fixed, so that the excess air in the cavities 5 can be normally pressed out, so that the fireproof composite film is better attached to the surface of the installation position, finally, the front and rear edges of the fireproof composite film are fixed, at this time, the silica gel sheets 6 block the residual gaps of the cavities 5, and the hot melt adhesive strips 4 after heating can bond the silica gel sheets 6, so as to improve the stability of the silica gel sheets 6, the excess part of the polyester layer 1 can be folded, and the excess part of the polyester layer 1 is used to isolate the silica gel sheets 6.

[0021] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A fireproof composite film for aviation, characterized in that: include: A polyester layer (1), an aramid fiber layer (2) and a glass fiber layer (3) are provided below the polyester layer (1), the upper and lower surfaces of the aramid fiber layer (2) are in close contact with the polyester layer (1) and the glass fiber layer (3), respectively, and a plurality of hot-melt adhesive strips (4) are fixedly connected to the lower surface of the glass fiber layer (3), and when the fireproof composite film is installed, the hot-melt adhesive strips (4) are in close contact with the surface of the fireproof composite film installation location; The gaps between the plurality of hot-melt adhesive strips (4) form a cavity (5); the hot-melt adhesive strips (4), the polyester layer (1), the aramid fiber layer (2), and the glass fiber layer (3) are of the same length; silicone sheets (6) are fixedly connected to the front and rear sides of the lower surface of the polyester layer (1); when the fireproof composite film is installed, the silicone sheet (6) and the fireproof composite film installation position seal the cavity (5).

2. The fireproof composite film for aviation according to claim 1, characterized in that: The width of the polyester layer (1) is greater than the width of the aramid fiber layer (2), and the widths of the aramid fiber layer (2) and the glass fiber layer (3) are the same.

3. The fireproof composite film for aviation according to claim 2, characterized in that: A fold (7) is provided on the lower surface of the polyester layer (1), and a portion of the polyester layer (1) that is larger than the aramid fiber layer (2) is tightly connected to the silicone sheet (6) via the fold (7).

4. The fireproof composite film for aviation according to claim 1, characterized in that: The length of the silicone sheet (6) is the same as that of the polyester layer (1), and the two silicone sheets (6) are in close contact with the front and rear surfaces of the aramid fiber layer (2) and the glass fiber layer (3), respectively.

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