High-strength polyimide composite laminated board
By setting a tensile layer and a support layer in the polyimide composite laminate, the problem that the fibers of the polyimide plate are easily folded when bending under stress is solved, and higher tensile and bending strength is achieved, and the occurrence of breakage is avoided.
Patent Information
- Application Number
- CN202421338112.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-13
AI Technical Summary
When the polyimide composite laminate is bending under stress, the pre-impregnated fibers of the resin are prone to bending and deformation, resulting in breakage.
A high-strength polyimide composite laminate is designed by providing a tensile layer and a support layer in the panel layer. The tensile layer includes a multi-layer fiber layer, the angle between the fiber layers is 40 to 50 degrees, which increases the tensile strength of the panel layer; the support layer includes a wavy support plate and a connecting plate to increase the bending strength of the panel layer.
Through the cooperation of the tensile layer and the support layer, the polyimide plate can more effectively resist forces in multiple directions when subjected to stress, avoiding bending deformation and breakage.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite laminated boards, in particular to a high-strength polyimide composite laminated board. Background Art
[0002] Polyimide is a high-performance polymer with excellent heat resistance, mechanical properties, chemical stability and electrical insulation. It is often used in electronic packaging substrates. When using packaging substrates made of polyimide, most of them need to be laminated with multiple layers of composite materials to ensure the overall strength during use.
[0003] At present, when processing polyimide composite laminates, resin pre-impregnated fiber materials are usually added inside the polyimide to provide good tensile properties for the polyimide board. In actual use, since the resin pre-impregnated fiber materials are arranged in parallel between the polyimide boards, when the polyimide board is bent under force, the resin pre-impregnated fibers are prone to bending and deformation, thereby causing breakage. Therefore, a high-strength polyimide composite laminate is proposed. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the resin pre-impregnated fibers are easily bent and deformed when the polyimide plates are bent under force, thereby causing breakage. The utility model provides a high-strength polyimide composite laminate.
[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:
[0006] A high-strength polyimide composite laminate, comprising:
[0007] A panel layer, the panel layer comprising a first fixed layer and a second fixed layer, the first fixed layer and the second fixed layer are both in a flat plate shape, and the first fixed layer and the second fixed layer are parallel to each other;
[0008] A tensile layer, disposed between the first fixing layer and the second fixing layer, for increasing the tensile effect of the first fixing layer and the second fixing layer;
[0009] The support layer is arranged inside the tensile layer and is used to increase the overall strength of the panel layer.
[0010] Furthermore, the first fixing layer and the second fixing layer are both made of polyimide.
[0011] Furthermore, the tensile layer includes a first fiber layer, a second fiber layer and a third fiber layer, the second fiber layer is multiple, the extension directions of the two ends of the second fiber layer are parallel to the first plane of the second fixed layer, the first fiber layer is connected to the first fixed layer, the third fiber layer is connected to the second fixed layer, the third fiber layer and the first fiber layer are opposite to each other and a second fiber layer is provided on the side, the angles between the first fiber layer, the third fiber layer and the second fiber layer are 40 to 50 degrees, and the first plane of the second fixed layer is the contact surface with the third fiber layer.
[0012] Furthermore, the third fiber layer and the first fiber layer are inclined in opposite directions relative to the second fiber layer.
[0013] Furthermore, the support layer includes a first support plate, a first connecting plate, a second support plate and a second connecting plate, and the second support plate and the first support plate are respectively provided on the opposite side of the second fiber layer, the first support plate and the second support plate are both wavy, and the extension directions of the waves of the first support plate and the second support plate are perpendicular to each other, and the second connecting plate and the first connecting plate are respectively provided on the opposite side of the first support plate and the second support plate, and a buffer layer for buffering is also provided between the first connecting plate and the second connecting plate.
[0014] Furthermore, the buffer layer is connected to the second connecting plate and the first connecting plate respectively, and a through hole is opened inside the buffer layer. There are a plurality of through holes, and the plurality of through holes are vertically staggered.
[0015] The beneficial effects of the utility model are as follows:
[0016] The utility model provides anti-bending support for the polyimide plate through the arrangement of the supporting layer, through the cooperation of the first supporting plate, the first connecting plate, the second supporting plate and the second connecting plate, thereby avoiding the situation where the resin pre-impregnated fibers are broken when the polyimide plate is bent under force due to the resin pre-impregnated fiber material being arranged in parallel between the polyimide plates.
[0017] By arranging the first fiber layer, the second fiber layer and the third fiber layer, tensile support in different directions is provided to the polyimide board, thereby increasing the ability of the polyimide board to resist forces in multiple directions when subjected to stress. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0019] Figure 2 It is a partial cross-sectional view of the panel layer of the utility model;
[0020] Figure 3 This is an enlarged view of the first support plate of the utility model;
[0021] Figure 4 It is a partial cross-sectional view of the buffer layer of the utility model;
[0022] Figure 5 This is an enlarged view of the second support plate of the utility model;
[0023] Figure numerals: 1, panel layer; 101, first fixed layer; 102, second fixed layer; 2, buffer layer; 201, through hole; 4, tensile layer; 401, first fiber layer; 402, second fiber layer; 403, third fiber layer; 5, supporting layer; 501, first supporting plate; 502, first connecting plate; 503, second supporting plate; 504, second connecting plate. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0027] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.
[0028] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] like Figures 1 to 5 As shown, a high-strength polyimide composite laminate comprises: a panel layer 1, the panel layer 1 comprises a first fixed layer 101 and a second fixed layer 102, the first fixed layer 101 and the second fixed layer 102 are both flat, and the first fixed layer 101 and the second fixed layer 102 are parallel to each other; a tensile layer 4, arranged between the first fixed layer 101 and the second fixed layer 102, for increasing the tensile effect of the first fixed layer 101 and the second fixed layer 102; a supporting layer 5, arranged inside the tensile layer 4, for increasing the overall strength of the panel layer 1, when in use, the tensile strength of the panel layer 1 as a whole is increased by the tensile layer 4, and at the same time, the supporting layer 5 is used to increase the bending strength of the panel layer 1 when in use, so as to avoid the panel layer 1 being deformed by force during use.
[0030] like Figures 1 to 5 As shown, the first fixing layer 101 and the second fixing layer 102 are both made of polyimide. Polyimide is a high-performance polymer with good heat resistance, mechanical properties, insulation and chemical stability, and is widely used in circuit board substrates.
[0031] like Figures 1 to 5 As shown, the tensile layer 4 includes a first fiber layer 401, a second fiber layer 402 and a third fiber layer 403, the second fiber layer 402 is multiple, the extension direction of the two ends of the second fiber layer 402 is parallel to the first plane of the second fixed layer 102, the first fiber layer 401 is connected to the first fixed layer 101, the third fiber layer 403 is connected to the second fixed layer 102, the third fiber layer 403 and the first fiber layer 401 are opposite to each other. The second fiber layer 402 is arranged on one side, the angles between the first fiber layer 401, the third fiber layer 403 and the second fiber layer 402 are 40 to 50 degrees, and the first plane of the second fixed layer 102 is The contact surface with the third fiber layer 403, the material of the first fiber layer 401, the second fiber layer 402 and the third fiber layer 403 can be quartz fiber or glass fiber material, the first fiber layer 401, the second fiber layer 402 and the third fiber layer 403 are all fixed by resin pre-impregnation, so as to increase the tensile strength during use, and the angle between the first fiber layer 401 and the third fiber layer 403 and the second fiber layer 402 can be any angle between 40 and 50 degrees, and the inclined third fiber layer 403 and the first fiber layer 401 cooperate with the second fiber layer 402 to increase the tensile strength in multiple directions during use.
[0032] like Figures 1 to 5 As shown, the third fiber layer 403 and the first fiber layer 401 are inclined in opposite directions relative to the second fiber layer 402. The third fiber layer 403 and the first fiber layer 401 cooperate with the second fiber layer 402 to increase the tensile strength of the first fixed layer 101 and the second fixed layer 102 in different directions to ensure stability during use.
[0033] like Figures 1 to 5 As shown, the support layer 5 includes a first support plate 501, a first connecting plate 502, a second support plate 503 and a second connecting plate 504. The second support plate 503 and the first support plate 501 are respectively arranged on one side of the opposite surface of the second fiber layer 402. The first support plate 501 and the second support plate 503 are both wavy, and the extension directions of the waves of the first support plate 501 and the second support plate 503 are perpendicular to each other. The second connecting plate 504 and the first connecting plate 502 are respectively arranged on one side of the opposite surface of the first support plate 501 and the second support plate 503. A buffer layer 2 for buffering is also arranged between the first connecting plate 502 and the second connecting plate 504. The first support plate 501 and the second support plate 503 are both pressed plates made of glass fiber or quartz fiber. The vertically placed first support plate 501 and the second support plate 503 increase the overall strength of the first fixed layer 101 and the second fixed layer 102 when in use, so as to prevent the first fixed layer 101 and the second fixed layer 102 from bending under force.
[0034] like Figures 1 to 5 As shown, the buffer layer 2 is connected to the second connecting plate 504 and the first connecting plate 502 respectively. A through hole 201 is opened inside the buffer layer 2. There are multiple through holes 201, and the multiple through holes 201 are vertically staggered. The material of the buffer layer 2 is a low modulus polymer, which can absorb impact force while having toughness, thereby dispersing or alleviating stress concentration caused by external loads, improving the durability and reliability of the overall structure, and the through hole 201 increases the deformation of the buffer layer 2 when subjected to force, further increasing the stress buffering effect.
[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A high-strength polyimide composite laminate, characterized in that: include: A panel layer (1), the panel layer (1) comprising a first fixed layer (101) and a second fixed layer (102), the first fixed layer (101) and the second fixed layer (102) both being in the shape of a flat plate, and the first fixed layer (101) and the second fixed layer (102) being parallel to each other; A tensile layer (4) is arranged between the first fixing layer (101) and the second fixing layer (102) and is used to increase the tensile effect of the first fixing layer (101) and the second fixing layer (102); The support layer (5) is arranged inside the tensile layer (4) and is used to increase the overall strength of the panel layer (1).
2. A high-strength polyimide composite laminate according to claim 1, characterized in that: The first fixing layer (101) and the second fixing layer (102) are both made of polyimide.
3. A high-strength polyimide composite laminate according to claim 2, characterized in that: The tensile layer (4) comprises a first fiber layer (401), a second fiber layer (402) and a third fiber layer (403); the second fiber layer (402) is multiple, the extension directions of the two ends of the second fiber layer (402) are parallel to the first plane of the second fixed layer (102); the first fiber layer (401) is connected to the first fixed layer (101); the third fiber layer (403) is connected to the second fixed layer (102); the second fiber layer (402) is provided on one side of the opposite surface of the third fiber layer (403) and the first fiber layer (401); the angles between the first fiber layer (401), the third fiber layer (403) and the second fiber layer (402) are 40 to 50 degrees; and the first plane of the second fixed layer (102) is the contact surface with the third fiber layer (403).
4. A high-strength polyimide composite laminate according to claim 3, characterized in that: The third fiber layer (403) and the first fiber layer (401) are inclined in opposite directions relative to the second fiber layer (402).
5. The high-strength polyimide composite laminate according to claim 3, characterized in that: The support layer (5) comprises a first support plate (501), a first connecting plate (502), a second support plate (503) and a second connecting plate (504); the second support plate (503) and the first support plate (501) are respectively arranged on one side of the opposite surface of the second fiber layer (402); the first support plate (501) and the second support plate (503) are both wavy, and the extension directions of the waves of the first support plate (501) and the second support plate (503) are perpendicular to each other; the second connecting plate (504) and the first connecting plate (502) are respectively arranged on one side of the opposite surface of the first support plate (501) and the second support plate (503); and a buffer layer (2) for buffering is also arranged between the first connecting plate (502) and the second connecting plate (504).
6. A high-strength polyimide composite laminate according to claim 5, characterized in that: The buffer layer (2) is connected to the second connecting plate (504) and the first connecting plate (502) respectively. A through hole (201) is provided inside the buffer layer (2). There are a plurality of through holes (201), and the plurality of through holes (201) are vertically staggered.