Fiber layer structure in fire-resistant composite material

Abstract

The utility model provides a fiber layer structure in a fire-resistant composite material, which solves the problems of insufficient structural strength and the like of a fire-resistant fiber layer and comprises a woven layer, the woven layer is provided with a woven fiber layer treated by infiltrating resin, the woven fiber layer is heated, and the resin is melted and seeps to form a non-woven layer. The woven fiber layer and the non-woven fiber layer are arranged in a mutually stacked mode. The cable has the advantages of being good in structural stability, high in flame retardant capacity and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite fibers, and particularly relates to a fiber layer structure in a fire-resistant composite material. Background Art

[0002] Refractory fiber is a fibrous refractory material and an efficient heat-insulating material. It has the characteristics of general fibers and can be processed into various papers, tapes, cords, felts, and blankets. It also has the properties of high temperature resistance, corrosion resistance, and oxidation resistance that ordinary fibers do not have, overcoming the brittleness of general refractory materials. Refractory fibers are divided into two categories: amorphous and polycrystalline. Amorphous refractory fibers include aluminosilicate, high-purity aluminosilicate, chromium-containing aluminosilicate, and high-aluminum refractory fibers. Polycrystalline refractory fibers include mullite fibers, alumina fibers, and zirconia fibers. However, in actual use, the existing refractory fibers have poor impact resistance, and the internal fiber structure is prone to fragmentation, resulting in the overall damage of the fiber layer.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a composite multi-temperature layer refractory fiber felt and blanket [200810031521.8], which is processed and formed by using a needle punching method or a needling method with two or three or more than three refractory fiber varieties of different temperature grades to form an integral refractory fiber felt and blanket, forming a composite multi-temperature layer refractory fiber felt and blanket product with a high-temperature refractory fiber on the fire-facing surface and an ordinary refractory fiber on the back-fire surface, and is cut into refractory fiber blocks, veneer blocks, and strips through shearing.

[0004] The above solution solves the problem of insufficient strength of the fiber layer structure to a certain extent, but there are still many deficiencies in this solution, such as poor fire resistance and other problems. Summary of the Invention

[0005] The purpose of the utility model is to provide a fiber layer structure in a fire-resistant composite material with reasonable design and good fire resistance performance for the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A fiber layer structure in a fire-resistant composite material includes a woven layer. The woven layer has a woven fiber layer treated with infiltrated resin. When the woven fiber layer is heated and the resin melts and oozes out, a non-woven layer is formed. The woven fiber layer and the non-woven fiber layer are arranged in a stacked manner.

[0007] In the above fiber layer structure of a fire-resistant composite material, the woven fiber layer is made of glass fiber or alumina fiber. The woven fiber layer is selected from a fiber felt or a fiber cloth, and the thickness of the woven fiber layer does not exceed 2.5 mm.

[0008] In the fiber layer structure of the above-mentioned fire-resistant composite material, the non-woven fiber layer includes short fibers, long fibers or continuous long fibers.

[0009] In the fiber layer structure of the above-mentioned fire-resistant composite material, a reinforcing layer is attached to the inner side of the woven layer, and a protective layer made of carbon fiber composite material is attached to the outer side of the woven layer through an adhesive layer. An impact-resistant structure is provided between the adhesive layer, the woven layer and the protective layer.

[0010] In the fiber layer structure of the above-mentioned fire-resistant composite material, the reinforcing layer is made of stainless steel fiber mesh cloth, and the thickness of the reinforcing layer is 0.5 - 1.8 mm.

[0011] In the fiber layer structure of the above-mentioned fire-resistant composite material, the adhesive layer uses a fireproof glue made of high-temperature resistant inorganic material, and the thickness of the adhesive layer is 0.4 - 0.6 mm.

[0012] In the fiber layer structure of the above-mentioned fire-resistant composite material, the impact-resistant structure includes a reinforcing grid that is embossed and convex on the woven layer. The reinforcing grid is honeycomb-shaped, and reinforcing convex points are evenly distributed in each grid.

[0013] In the fiber layer structure of the above-mentioned fire-resistant composite material, the height of the reinforcing grid protruding relative to the woven layer is 0.6 - 0.8 mm, the width of the reinforcing grid is 0.8 - 1.2 mm, the height of the reinforcing convex points is 0.2 - 0.5 mm, and the diameter of the reinforcing convex points is 0.4 - 0.9 mm.

[0014] In the fiber layer structure of the above-mentioned fire-resistant composite material, the protective layer is hexagonal and is independently embedded in each grid of the reinforcing grid. The thickness of the protective layer is 0.7 - 1.0 mm; a wear-resistant layer made of polyethylene material is covered on the outer side of the protective layer, and the thickness of the wear-resistant layer is 0.1 - 0.3 mm.

[0015] In the fiber layer structure of the above-mentioned fire-resistant composite material, sealant is filled between the gaps of adjacent protective layers and the wear-resistant layer, and the sealant is made of chloroprene rubber material.

[0016] Compared with the existing technologies, the advantages of the present utility model are as follows: The woven layer adopts a woven fiber layer treated with infiltrated resin. When heated, the resin oozes out, enabling the lamination of multiple woven layers. The woven fiber layers made of multiple refractory fiber materials greatly improve the overall fire resistance of the fiber layer structure. The woven layer adopts a multi-layer heat insulation fiber structure, and at the same time buffers the outer protective layer, improving the overall impact resistance of the fiber layer structure. The inner side of the fiber layer structure is covered with a reinforcing layer made of stainless steel fiber material, improving the overall tensile strength of the fiber layer structure. When the fiber layer structure is deformed under tension, the overall structural integrity is maintained. The protective layer is arranged in a honeycomb pattern on the woven layer, further improving the structural stability of the fiber layer structure. Local deformation and damage do not affect the integrity of the remaining parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is another schematic structural view of the present utility model;

[0019] Figure 3 is another schematic structural view of the present utility model;

[0020] Figure 4 is a partial schematic view of the present utility model;

[0021] Figure 5 is another partial schematic view of the present utility model;

[0022] In the figures, woven layer 1, woven fiber layer 11, non-woven fiber layer 12, reinforcing layer 2, adhesion layer 3, protective layer 4, impact-resistant structure 5, reinforcing grid 51, reinforcing bumps 52, wear-resistant layer 6, sealant 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0024] As Figures 1-5 shown, a fiber layer structure in a fire-resistant composite material includes a woven layer 1. The woven layer 1 has a woven fiber layer 11 treated with infiltrated resin. When the woven fiber layer 11 is heated and the resin melts and oozes out, it forms a non-woven layer 12. The woven fiber layer 11 and the non-woven fiber layer 12 are arranged in a laminated manner, and their laminated structure has good heat insulation and flame retardant functions, and can be used to manufacture parts alone and as a reinforcing material to be combined with local parts.

[0025] Specifically, the woven fiber layer 11 is made of glass fiber or alumina fiber, and the woven fiber layer 11 is made of fiber felt or fiber cloth. The thickness of the woven fiber layer 11 does not exceed 2.5 mm, and preferably the thickness of the woven fiber layer 11 is 2 mm. Under normal conditions, the surface of a single woven fiber layer 11 is covered with a protective film. When in use, the woven fiber layer 11 is uncovered and heated, and the high temperature resistant resin therein seeps out to play a role in bonding the woven layer 1.

[0026] In addition, in addition to using a single high temperature resistant resin, the non-woven fiber layer 12 may also contain short fibers, long fibers or continuous long fibers to further improve its fire resistance.

[0027] In order to ensure its pulling strength, a reinforcing layer 2 is attached to the inner side of the braided layer 1, and a protective layer 4 made of carbon fiber composite material is attached to the outer side of the braided layer 1 through an adhesive layer 3 for flame retardancy. At the same time, the protective layer 4 has a high structural strength and provides good protection for the inner braided layer 1. An impact-resistant structure 5 is provided between the adhesive layer 3, the braided layer 1 and the protective layer 4 to isolate the protective layer 4. When a local protective layer 4 is damaged, the inner braided layer 1 and the remaining protective layers 4 can still maintain structural integrity.

[0028] Furthermore, in addition to conventional fire-resistant fiber mesh, the present embodiment also uses stainless steel fiber mesh for the reinforcement layer 2, and the thickness of the reinforcement layer 2 is 0.5-1.8 mm, preferably 1.2 mm thick, and the reinforcement layer 2 cooperates with the adhesive colloid to achieve adhesion and fixation of the fiber layer structure.

[0029] Furthermore, the adhesion layer 3 adopts a fireproof glue made of high-temperature resistant inorganic material, and the thickness of the adhesion layer 3 is 0.4-0.6 mm. Its thickness is adjusted synchronously with the protective layer 4. It is filled between the protective layer 4 and the woven layer 1 and penetrates into the fiber layer of the woven layer 1.

[0030] In addition, unlike the existing one-piece carbon fiber mesh, the impact-resistant structure 5 in this embodiment includes a reinforced grid 51 that is embossed and raised on the woven layer 1. The reinforced grid 51 is honeycomb-shaped and each grid is evenly distributed with reinforced protrusions 52. The reinforced grid 51 and the reinforced protrusions 52 improve the assembly stability of the protective layer 4 and provide more bonding area for the adhesive layer 3.

[0031] At the same time, the reinforcing grid 51 is integrally formed with the woven layer 1, and its protrusion height relative to the woven layer 1 is 0.6-0.8mm, and the preferred protrusion height is 0.7mm; the width of the reinforcing grid 51 is 0.8-1.2mm, and the preferred width is 1mm; the height of the reinforcing protrusion 52 is 0.2-0.5mm, and the diameter of the reinforcing protrusion 52 is 0.4-0.9mm, and its height is preferably 0.3mm, and its diameter is preferably 0.6mm. Each reinforcing protrusion 52 is semi-spherical.

[0032] Visibly, the protective layer 4 is hexagonal and is independently fitted into each grid of the reinforcing grid 51. The thickness of the protective layer 4 is 0.7 - 1.0 mm, and the protective layer 4 with a preferred thickness of 0.8 mm is selected. A buffer gap is left between adjacent protective layers 4.

[0033] Obviously, in order to ensure the surface integrity under normal conditions, the outer side of the protective layer 4 is coated. A wear-resistant layer 6 made of polyethylene is covered on the outer side of the protective layer 4. The thickness of the wear-resistant layer 6 is 0.1 - 0.3 mm, and the wear-resistant layer 6 with a thickness of 0.2 mm is preferably selected to improve its surface wear resistance.

[0034] Preferably, a sealant 7 is filled between the gaps of adjacent protective layers 4 and the wear-resistant layer 6 for buffer sealing. The sealant 7 is made of neoprene, which has good flame retardancy. After the sealant 7 is encapsulated, the outer side of the joint of the protective layer 4 is flush with the outer surface of the protective layer 4.

[0035] In summary, the principle of this embodiment is as follows: The woven fiber layer 11 and the non-woven fiber layer 12 are compounded and stacked. A modular protective layer 4 is attached to the outside through the adhesion layer 3. The impact-resistant structure 5 ensures its structural stability, and the inner reinforcing layer 2 maintains the overall structural integrity of the fiber layer structure.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although terms such as woven layer 1, woven fiber layer 11, non-woven fiber layer 12, reinforcing layer 2, adhesion layer 3, protective layer 4, impact-resistant structure 5, reinforcing grid 51, reinforcing bump 52, wear-resistant layer 6, and sealant 7 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A fiber layer structure in a fire-resistant composite material, comprising a woven layer (1), characterized in that, The described braided layer (1) has a braided fiber layer (11) treated with impregnated resin. When the braided fiber layer (11) is heated and the resin melts and oozes out, it forms a non-braided fiber layer (12). The braided fiber layer (11) and the non-braided fiber layer (12) are arranged in a stacked manner.

2. The fiber layer structure in a fire-resistant composite material according to claim 1, characterized in that, The braided fiber layer (11) is made of glass fiber or alumina fiber. The braided fiber layer (11) is selected from fiber felt or fiber cloth, and the thickness of the braided fiber layer (11) does not exceed 2.5 mm.

3. The fiber layer structure in a fire-resistant composite material according to claim 1, characterized in that, The non-braided fiber layer (12) includes short fibers, long fibers or continuous long fibers.

4. The fiber layer structure in a fire-resistant composite material according to claim 1, wherein, A reinforcing layer (2) is attached to the inner side of the braided layer (1). A protective layer (4) made of a carbon fiber composite material is attached to the outer side of the braided layer (1) through an adhesive layer (3). An impact-resistant structure (5) is provided between the adhesive layer (3), the braided layer (1) and the protective layer (4).

5. The fiber layer structure in a fire-resistant composite material according to claim 4, characterized in that, The reinforcing layer (2) is selected from stainless steel fiber mesh cloth, and the thickness of the reinforcing layer (2) is 0.5 - 1.8 mm.

6. The fiber layer structure in a fire-resistant composite material according to claim 4, characterized in that, The adhesive layer (3) uses a fireproof adhesive made of a high-temperature resistant inorganic material, and the thickness of the adhesive layer (3) is 0.4 - 0.6 mm.

7. The fiber layer structure in a fire-resistant composite material according to claim 4, characterized in that, The impact-resistant structure (5) includes a reinforcing grid (51) that is embossed and raised on the braided layer (1). The reinforcing grid (51) is honeycomb-shaped, and reinforcing bumps (52) are evenly distributed in each grid.

8. The fiber layer structure in a fire-resistant composite material according to claim 7, characterized in that, The height of the reinforcing grid (51) protruding relative to the braided layer (1) is 0.6 - 0.8 mm, the width of the reinforcing grid (51) is 0.8 - 1.2 mm, the height of the reinforcing bumps (52) is 0.2 - 0.5 mm, and the diameter of the reinforcing bumps (52) is 0.4 - 0.9 mm.

9. The fiber layer structure in a fire-resistant composite material according to claim 4, characterized in that, The protective layer (4) is hexagonal and is independently fitted into each grid of the reinforcing grid (51). The thickness of the protective layer (4) is 0.7 - 1.0 mm; a wear-resistant layer (6) made of polyethylene material is covered on the outer side of the protective layer (4), and the thickness of the wear-resistant layer (6) is 0.1 - 0.3 mm.

10. The fiber layer structure in a fire-resistant composite material according to claim 9, characterized in that, A sealant (7) is filled between the gaps of adjacent protective layers (4) and the wear-resistant layer (6). The sealant (7) is selected from chloroprene rubber material.

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