Anti-pulling mica paper

Abstract

The utility model discloses anti-pulling mica paper which comprises an anti-pulling cross-linked network layer which is arranged above a mica paper base material, an aluminum foil layer is arranged above the anti-pulling cross-linked network layer, and an upper mica pulp sheet layer is arranged above the aluminum foil layer. The graphene layer is arranged below the mica paper base material, a polyimide film layer is arranged below the graphene layer, a lower mica pulp sheet layer is arranged below the polyimide film layer, and a lower mica pulp sheet layer is arranged below the lower mica pulp sheet layer. Organic insulating silicon resin glue is arranged among the mica paper base material, the anti-pulling cross-linked network layer, the graphene layer, the polyimide film layer, the aluminum foil layer, the upper mica pulp sheet layer and the lower mica pulp sheet layer, the anti-pulling cross-linked network layer is arranged in the mica paper, and the anti-pulling cross-linked network layer is of a double-layer structure composed of alkali-free glass fiber cloth and acetate fiber cloth. The alkali-free glass fiber cloth and the cellulose acetate fiber cloth are good in toughness and pulling resistance, the edge of the mica paper cannot be warped or cracked in the using process, and the service life of the mica paper is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mica paper, in particular to a tensile-resistant mica paper. Background Art

[0002] Mica paper is made of muscovite mica, which is broken into pulp for papermaking through thermochemical or hydraulic stripping, and then cut into continuous rolls or single sheets. Mica paper, also known as refractory mica paper, is made from mica liquid and is a refractory insulating material. Mica paper is a high-performance mica insulation product with excellent high temperature resistance and combustion resistance. The amount of mica paper needed for maintenance is also considerable. In addition, many industries and household appliances also require a large amount of insulating paperboard and other products.

[0003] The Chinese patent publication number is CN209975258U, and the authorization announcement date is January 21, 2020. A tensile-resistant multi-layer composite mica paper includes a winding tube and a mica paper main body wound on the outside of the winding tube, and the mica paper main body includes a glass fiber layer located in the outermost layer, a mica paper base layer located in the middle layer, and a ceramic fiber layer located in the innermost layer; it also includes a cutting component detachably installed inside the winding tube; the mica paper main body of the utility model includes a glass fiber layer located in the outermost layer, a mica paper base layer located in the middle layer, and a ceramic fiber layer located in the innermost layer, and has high tensile resistance; the cutting component set in the utility model facilitates the timely cutting of mica paper during use, improves the use efficiency, and reduces the cost of parts.

[0004] The existing mica paper has poor tensile strength at the outer edge or seam of the surface. When subjected to external forces during use, the edge of the mica paper may easily warp or crack, which reduces the service life of the mica paper, increases the user's cost of use, and cannot meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a tear-resistant mica paper to solve the problem in the above-mentioned background technology that the tear-resistant performance of the outer edge or seam position of the existing mica paper is poor, and the edge of the mica paper is easily warped or cracked by external force during use, which reduces the service life of the mica paper, increases the user's use cost, and cannot meet the use needs.

[0006] To achieve the above object, the utility model provides the following technical solution: a tensile-resistant mica paper, comprising a mica paper substrate, and further comprising:

[0007] An anti-pull cross-linked mesh layer is arranged above the mica paper substrate, an aluminum foil layer is arranged above the anti-pull cross-linked mesh layer, an upper mica slurry sheet layer is arranged above the aluminum foil layer, and the mica paper substrate, the anti-pull cross-linked mesh layer, the aluminum foil layer and the upper mica slurry sheet layer are bonded together;

[0008] A graphene layer is arranged below the mica paper substrate, a polyimide film layer is arranged below the graphene layer, a lower mica slurry sheet layer is arranged below the polyimide film layer, and the mica paper substrate, the graphene layer, the polyimide film layer and the lower mica slurry sheet layer are bonded together, and organic insulating silicone resin glue is arranged between the mica paper substrate, the anti-tension cross-linked mesh layer, the graphene layer, the polyimide film layer, the aluminum foil layer, the upper mica slurry sheet layer and the lower mica slurry sheet layer, and the mica paper substrate, the anti-tension cross-linked mesh layer, the graphene layer, the polyimide film layer, the aluminum foil layer, the upper mica slurry sheet layer and the lower mica slurry sheet layer are glued together by the organic insulating silicone resin glue.

[0009] Preferably, the tensile-resistant cross-linked mesh layer includes alkali-free glass fiber cloth and acetate fiber cloth, and the alkali-free glass fiber cloth is arranged on the outside of the acetate fiber cloth, the alkali-free glass fiber cloth is arranged horizontally, the acetate fiber cloth is arranged longitudinally, and the alkali-free glass fiber cloth and the acetate fiber cloth are arranged as a whole.

[0010] Preferably, nano-magnesium hydroxide particles are arranged inside the polyimide film layer, and the nano-magnesium hydroxide particles and the polyimide film layer are integrated.

[0011] Preferably, a raised soft block is provided at the upper end of the upper mica slurry sheet layer, and the raised soft block is integrated with the upper mica slurry sheet layer.

[0012] Preferably, an arc-shaped deformation groove is provided at the lower end of the lower mica slurry sheet layer, and the arc-shaped deformation groove is provided corresponding to the raised soft block.

[0013] Preferably, an anti-slip film layer is provided at the lower end of the lower mica slurry sheet layer, and the anti-slip film layer and the lower mica slurry sheet layer are integrated.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model device is provided with a tensile-resistant cross-linked mesh layer, which is a double-layer structure composed of alkali-free glass fiber cloth and acetate fiber cloth. Glass fiber is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. Acetate fiber is a man-made fiber obtained by esterification reaction of acetic acid and cellulose as raw materials. The strength of the tensile-resistant cross-linked mesh layer is increased, the tensile resistance of mica paper is improved, and the use effect of mica paper is better;

[0016] 2. The utility model device is provided with nano magnesium hydroxide particles, which effectively increase the surface tension of mica paper, so that the mica paper has anti-puncture, high insulation and heat insulation effects, and the electrical strength and stability of the mica paper are better;

[0017] 3. The utility model device is provided with raised soft blocks, arc-shaped deformation grooves and anti-slip film layers. The arc-shaped deformation grooves leave a gap between the packaging object and the contact surface, which is beneficial to heat dissipation. When the raised soft blocks are used to wrap objects in multiple layers, a certain gap exists between the laminating layers, which is beneficial to the heat dissipation of the wrapping structure. When the multiple layers are wrapped, the raised soft blocks are pressed into the arc-shaped deformation grooves to play a positioning role. The wrapped mica paper will not be misaligned or skewed, thereby improving the laminating effect of the inner and outer layers of mica paper and better covering and wrapping the objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the anti-tension cross-linked mesh layer of the utility model;

[0020] Figure 3 It is a cross-sectional view of the polyimide film layer of the utility model;

[0021] Figure 4 This is a cross-sectional view of the upper mica slurry layer of the utility model;

[0022] Figure 5 This is a cross-sectional view of the lower mica slurry layer of the utility model.

[0023] In the figure: 1. Mica paper substrate; 2. Anti-tension cross-linked mesh layer; 3. Organic insulating silicone resin glue; 4. Graphene layer; 5. Polyimide film layer; 6. Aluminum foil layer; 7. Upper mica slurry layer; 8. Lower mica slurry layer; 9. Raised soft blocks; 10. Nano magnesium hydroxide particles; 11. Alkali-free glass fiber cloth; 12. Acetate cloth; 13. Arc deformation groove; 14. Anti-slip film layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: a tensile-resistant mica paper, including a mica paper substrate 1, and also including:

[0026] The anti-pull cross-linked mesh layer 2 is arranged on the top of the mica paper substrate 1, the aluminum foil layer 6 is arranged on the top of the anti-pull cross-linked mesh layer 2, the upper mica pulp sheet layer 7 is arranged on the top of the aluminum foil layer 6, and the mica paper substrate 1, the anti-pull cross-linked mesh layer 2, the aluminum foil layer 6 and the upper mica pulp sheet layer 7 are bonded together;

[0027] A graphene layer 4 is arranged below a mica paper substrate 1, a polyimide film layer 5 is arranged below the graphene layer 4, a lower mica slurry sheet layer 8 is arranged below the polyimide film layer 5, and the mica paper substrate 1, the graphene layer 4, the polyimide film layer 5 and the lower mica slurry sheet layer 8 are bonded to each other, and an organic insulating silicone resin glue 3 is arranged between the mica paper substrate 1, the anti-tension cross-linked mesh layer 2, the graphene layer 4, the polyimide film layer 5, the aluminum foil layer 6, the upper mica slurry sheet layer 7 and the lower mica slurry sheet layer 8, and the mica paper substrate 1, the anti-tension cross-linked mesh layer 2, the graphene layer 4, the polyimide film layer 5, the aluminum foil layer 6, the upper mica slurry sheet layer 7 and the lower mica slurry sheet layer 8 are glued together by the organic insulating silicone resin glue 3.

[0028] See also Figure 1 and Figure 2 The anti-pull cross-linked mesh layer 2 includes an alkali-free glass fiber cloth 11 and an acetate fiber cloth 12, and the alkali-free glass fiber cloth 11 is arranged on the outside of the acetate fiber cloth 12, the alkali-free glass fiber cloth 11 is arranged horizontally, and the acetate fiber cloth 12 is arranged vertically, and the alkali-free glass fiber cloth 11 and the acetate fiber cloth 12 are arranged as a whole. Glass fiber is an inorganic non-metallic material with excellent performance, good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. Acetate fiber is an artificial fiber obtained by esterification reaction of acetic acid and cellulose as raw materials. The alkali-free glass fiber cloth 11 and the acetate fiber cloth 12 constitute a double-layer anti-pull cross-linked mesh layer 2 with good resilience and no static electricity, which improves the anti-pull performance of mica paper and improves the use effect of mica paper.

[0029] See also Figure 1 and Figure 3 Nano-magnesium hydroxide particles 10 are arranged inside the polyimide film layer 5, and the nano-magnesium hydroxide particles 10 are integrated with the polyimide film layer 5. The surface tension of the mica paper is effectively improved by the nano-magnesium hydroxide particles 10, so that the mica paper has anti-puncture, high insulation and heat insulation effects, and has better electrical strength and stability.

[0030] See also Figure 1 and Figure 4 A raised soft block 9 is provided at the upper end of the upper mica slurry sheet layer 7, and the raised soft block 9 is integrated with the upper mica slurry sheet layer 7. When the multi-layer lamination wrapping object is performed through the raised soft block 9, a certain gap is made between the lamination layers, which is beneficial to the heat dissipation of the wrapping structure.

[0031] See also Figure 1 and Figure 5An arc-shaped deformation groove 13 is provided at the lower end of the lower mica slurry sheet layer 8, and the arc-shaped deformation groove 13 is provided corresponding to the raised soft block 9. A gap is left between the packaging object and the contact surface through the arc-shaped deformation groove 13, which is conducive to heat dissipation. When the multi-layer lamination is performed, the raised soft block 9 is pressed into the arc-shaped deformation groove 13 to play a positioning role, and the wrapped mica paper will not be misaligned or skewed, thereby improving the lamination effect of the inner and outer layers of mica paper and better covering and wrapping the object.

[0032] See also Figure 1 and Figure 5 A non-slip film layer 14 is provided at the lower end of the lower mica slurry layer 8, and the non-slip film layer 14 is integrated with the lower mica slurry layer 8. The non-slip film layer 14 increases the friction of the bottom of the mica paper to prevent slipping between the mica paper and the object, thereby better wrapping the object.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] 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 tensile-resistant mica paper, comprising a mica paper substrate (1), characterized in that: Also includes: A tensile-resistant cross-linked mesh layer (2) is arranged above the mica paper substrate (1), an aluminum foil layer (6) is arranged above the tensile-resistant cross-linked mesh layer (2), an upper mica slurry sheet layer (7) is arranged above the aluminum foil layer (6), and the mica paper substrate (1), the tensile-resistant cross-linked mesh layer (2), the aluminum foil layer (6) and the upper mica slurry sheet layer (7) are bonded together; A graphene layer (4) is arranged below the mica paper substrate (1), a polyimide film layer (5) is arranged below the graphene layer (4), a lower mica slurry sheet layer (8) is arranged below the polyimide film layer (5), and the mica paper substrate (1), the graphene layer (4), the polyimide film layer (5) and the lower mica slurry sheet layer (8) are bonded together, and the mica paper substrate (1), the anti-pull cross-linked mesh layer (2), the graphene layer (5) and the lower mica slurry sheet layer (8) are bonded together. An organic insulating silicone resin adhesive (3) is provided between the layer (4), the polyimide film layer (5), the aluminum foil layer (6), the upper mica slurry sheet layer (7) and the lower mica slurry sheet layer (8), and the mica paper substrate (1), the anti-pulling cross-linked mesh layer (2), the graphene layer (4), the polyimide film layer (5), the aluminum foil layer (6), the upper mica slurry sheet layer (7) and the lower mica slurry sheet layer (8) are bonded together by the organic insulating silicone resin adhesive (3).

2. The tear-resistant mica paper according to claim 1, characterized in that: The anti-tear cross-linked mesh layer (2) comprises an alkali-free glass fiber cloth (11) and an acetate fiber cloth (12), wherein the alkali-free glass fiber cloth (11) is arranged outside the acetate fiber cloth (12), the alkali-free glass fiber cloth (11) is arranged transversely, and the acetate fiber cloth (12) is arranged longitudinally, and the alkali-free glass fiber cloth (11) and the acetate fiber cloth (12) are arranged as a whole.

3. The tear-resistant mica paper according to claim 1, characterized in that: Nano-magnesium hydroxide particles (10) are arranged inside the polyimide film layer (5), and the nano-magnesium hydroxide particles (10) and the polyimide film layer (5) are arranged as a whole.

4. The tear-resistant mica paper according to claim 1, characterized in that: A raised soft block (9) is provided at the upper end of the upper mica slurry sheet layer (7), and the raised soft block (9) and the upper mica slurry sheet layer (7) are integrally formed.

5. The tear-resistant mica paper according to claim 1, characterized in that: An arc-shaped deformation groove (13) is arranged at the lower end of the lower mica slurry sheet layer (8), and the arc-shaped deformation groove (13) is arranged corresponding to the raised soft block (9).

6. The tear-resistant mica paper according to claim 1, characterized in that: An anti-skid film layer (14) is provided at the lower end of the lower mica slurry sheet layer (8), and the anti-skid film layer (14) and the lower mica slurry sheet layer (8) are integrally formed.

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