A disc membrane sealing stent and a preparation method thereof
Patent Information
- Application Number
- CN202610816302.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-08
- Publication Date
- 2026-08-21
AI Technical Summary
[0004]本发明的目的是针对碟式膜因缺少理想的支撑而难以推广应用的问题，设计一种碟式膜密封支架及其制备方法
[0055]本发明解决了膜片之间的支撑与密封问题，不仅能实现快速安装，而且支撑强度高，密封性能好。
Smart Images
Figure CN122605349A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a gas separation technology, and more particularly to a membrane technology for gas separation, specifically a disc-type membrane sealing support and its preparation method. Background Technology
[0002] As is well known, gas separation membranes are used for gas separation and have a wide range of applications in industries such as energy, environmental protection, and chemicals. Plate membranes have high production efficiency and high yield. They are basically encapsulated in a membrane tube in the shape of a spiral wound membrane. The gas path is relatively long, which makes it easy to accumulate static electricity and cause severe concentration polarization. Due to the structural form, the diameter of spiral wound membranes cannot be made too large, and the maximum diameter is generally 200mm.
[0003] Another type of plate membrane encapsulation is the disc membrane, which can be up to 500mm in diameter. The membrane is made into small membrane groups and stacked layer by layer. The support and sealing between the membrane groups are particularly important, and there is no good solution for this yet. Summary of the Invention
[0004] The purpose of this invention is to address the problem that disc membranes are difficult to widely apply due to the lack of ideal support, and to design a disc membrane sealing support and its preparation method.
[0005] One of the technical solutions of this invention is:
[0006] A disc-type membrane sealing support is characterized in that: it is composed of an engineering plastic inner ring 1 and a rubber outer ring 2, the edge of the engineering plastic inner ring 1 is V-shaped and inserted into the rubber outer ring 2, and the two are bonded together by a coupling agent; protruding positioning pins 3 and positioning pin holes 4 are provided at intervals on the engineering plastic inner ring 1.
[0007] The thickness of the outer rubber ring 2 along each axis is 0.4-2 mm greater than the axial thickness of the inner engineering plastic ring 1.
[0008] The number of positioning pins 3 and positioning pin holes 4 are both 4 and are evenly distributed on the engineering plastic inner ring 1.
[0009] The engineering plastic inner ring 1 is a glass fiber reinforced PPS engineering plastic product or a carbon fiber reinforced PEEK engineering plastic product.
[0010] The outer rubber ring 2 is made of fluororubber, perfluoroether rubber, or nitrile rubber.
[0011] The coupling agent is one of a fluorinated silane coupling agent and an aminosilane coupling agent, or a combination thereof.
[0012] The second technical solution of the present invention is:
[0013] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0014] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of fluororubber.
[0015] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0016] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0017] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0018] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and rubber material is injected into the mold through an injection molding machine. The rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0019] The third technical solution of the present invention is:
[0020] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0021] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber.
[0022] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0023] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0024] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0025] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0026] The fourth technical solution of the present invention is:
[0027] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0028] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of nitrile rubber.
[0029] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0030] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0031] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0032] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0033] The fifth technical solution of the present invention is:
[0034] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0035] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of fluororubber.
[0036] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0037] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0038] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0039] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and fluororubber is injected into the mold through an injection molding machine. The vulcanization temperature of the fluororubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0040] The sixth technical solution of the present invention is:
[0041] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0042] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber.
[0043] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0044] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0045] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0046] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0047] The seventh technical solution of the present invention is:
[0048] A method for preparing a disc-type membrane sealing stent, characterized by comprising the following steps:
[0049] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of nitrile rubber.
[0050] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0051] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0052] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0053] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0054] The beneficial effects of this invention are:
[0055] This invention solves the problem of support and sealing between diaphragms, enabling rapid installation and providing high support strength and good sealing performance.
[0056] The present invention has a simple process and low cost. Attached Figure Description
[0057] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0058] Figure 2 yes Figure 1 The front view.
[0059] Figure 3 yes Figure 2 AA section view and its enlarged partial schematic diagram.
[0060] Figure 4 This is a schematic diagram of the usage state of the present invention.
[0061] Figure 4 5 is a single-piece disc membrane sealing support, and 6 is a single-piece disc gas separation membrane. Detailed Implementation
[0062] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0063] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.
[0064] Example 1.
[0065] like Figure 1-4 As shown.
[0066] A disc-type membrane sealing support, which is made of Figure 2 The inner ring is composed of an engineering plastic inner ring 1 and a rubber outer ring 2. The edge of the engineering plastic inner ring 1 is V-shaped and inserted into the rubber outer ring 2. The two are bonded together by a coupling agent. Figure 3 As shown; protruding locating pins 3 and locating pin holes 4 are provided at intervals on the engineering plastic inner ring 1, such as... Figure 1 As shown. In specific implementation, the thickness of the rubber outer ring 2 should be 0.4-2mm greater than the thickness of the engineering plastic inner ring 1. There are four locating pins 3 and four locating pin holes 4, which are evenly distributed on the engineering plastic inner ring 1.
[0067] The engineering plastic inner ring 1 of this invention can be made of glass fiber reinforced PPS engineering plastic or carbon fiber reinforced PEEK engineering plastic. The rubber outer ring 2 can be made of fluororubber, perfluoroether rubber, or nitrile rubber. The coupling agent can be one or a combination of fluorosilane coupling agents and aminosilane coupling agents.
[0068] Example 2.
[0069] A disc-type membrane sealing support is prepared by the following steps:
[0070] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of fluororubber.
[0071] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0072] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0073] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0074] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and rubber material is injected into the mold through an injection molding machine. The rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0075] Example 3.
[0076] A disc-type membrane sealing support is prepared by the following steps:
[0077] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber.
[0078] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0079] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0080] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0081] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0082] Example 4.
[0083] A disc-type membrane sealing support is prepared by the following steps:
[0084] First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of nitrile rubber.
[0085] Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0086] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0087] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0088] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0089] Example 5.
[0090] A disc-type membrane sealing support is prepared by the following steps:
[0091] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of fluororubber.
[0092] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0093] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0094] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0095] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and fluororubber is injected into the mold through an injection molding machine. The vulcanization temperature of the fluororubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0096] Example 6.
[0097] A disc-type membrane sealing support is prepared by the following steps:
[0098] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber.
[0099] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0100] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0101] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0102] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0103] Example 6.
[0104] A disc-type membrane sealing support is prepared by the following steps:
[0105] First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of nitrile rubber.
[0106] Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4).
[0107] Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W.
[0108] Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes;
[0109] Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
[0110] The usage state of this invention is shown in the figure. The disc-type membrane sealing support is composed of rubber and engineering plastic. The interface between the engineering plastic and the rubber is V-shaped to increase the contact area. A coupling agent is applied between the contact surfaces to enhance the bonding strength between the rubber and the engineering plastic. The outer ring of the rubber is 0.4~2mm thicker than the engineering plastic to provide elastic deformation for sealing. Four pins are evenly distributed around the circumference of the engineering plastic, and four pin holes are evenly distributed at 90-degree intervals. During installation, each layer is rotated 90 degrees to press the pins into the pin holes, ensuring accurate positioning. The circle formed by the four cylinders also serves as a positioning device for the diaphragm. After the multi-layer disc-type membrane support and the disc-type diaphragm are overlapped and combined, tie rods and flanges are used to press the layers together to achieve interlayer sealing.
[0111] The above embodiments are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and equivalent substitutions without departing from the principle of the present invention. All such improvements and equivalent substitutions to the claims of the present invention fall within the protection scope of the present invention.
[0112] All parts not covered in this invention are the same as or can be implemented using existing technologies.
Claims
1. A disc-type membrane sealing support, characterized in that: It consists of an engineering plastic inner ring (1) and a rubber outer ring (2). The edge of the engineering plastic inner ring (1) is V-shaped and inserted into the rubber outer ring (2). The two are bonded together by a coupling agent. The engineering plastic inner ring (1) is provided with protruding positioning pins (3) and positioning pin holes (4) at intervals. The axial thickness of the rubber outer ring (2) is 0.4-2 mm greater than that of the engineering plastic inner ring (1).
2. The disc-type membrane sealing support according to claim 1, characterized in that: The number of positioning pins (3) and positioning pin holes (4) are both 4 and are evenly distributed on the engineering plastic inner ring (1).
3. The disc-type membrane sealing support according to claim 1, characterized in that: The engineering plastic inner ring (1) is a glass fiber reinforced PPS engineering plastic product or a carbon fiber reinforced PEEK engineering plastic product; the rubber outer ring (2) is a fluororubber, perfluoroether rubber or nitrile rubber product.
4. The disc-type membrane sealing support according to claim 1, characterized in that: The coupling agent is one of a fluorinated silane coupling agent and an aminosilane coupling agent, or a combination thereof.
5. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of fluororubber. Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and rubber material is injected into the mold through an injection molding machine. The rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
6. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber. Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
7. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of glass fiber reinforced PPS engineering plastic, and the rubber outer ring (2) is made of nitrile rubber. Next, glass fiber reinforced PPS engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
8. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of fluororubber. Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and fluororubber is injected into the mold through an injection molding machine. The vulcanization temperature of the fluororubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
9. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of perfluoroether rubber. Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and perfluoroether rubber is injected into the mold through an injection molding machine. The perfluoroether rubber vulcanization temperature is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.
10. A method for preparing the disc-type membrane sealing stent according to claim 1, characterized in that: Includes the following steps: First, the engineering plastic inner ring (1) is made of carbon fiber reinforced PEEK engineering plastic, and the rubber outer ring (2) is made of nitrile rubber. Next, carbon fiber reinforced PEEK engineering plastic is injected into a molding die to obtain an engineering plastic inner ring (1) with a positioning pin (3) and a positioning pin hole (4). Third, the bonding parts of the engineering plastic inner ring (1) are treated with low-temperature plasma for 2 to 8 seconds and 300 to 500W. Fourth, apply Thinkbond 233A / 233B to the bonding surface of the treated engineering plastic inner ring (1) and cure at 150℃ for 10~30 minutes; Fifth, the treated engineering plastic inner ring (1) is placed in the mold, and nitrile rubber is injected into the mold through an injection molding machine. The vulcanization temperature of the nitrile rubber is controlled at 150~200℃. After cooling, the disc-type membrane sealing bracket is obtained.