A preparation device for ultra-thin polyphenylene sulfide proton exchange membrane

Abstract

The utility model relates to the technical field of ultra-thin polyphenylene sulfide proton exchange membranes, and discloses a preparation device for ultra-thin polyphenylene sulfide proton exchange membranes, comprising a base, a casting device is arranged on the left side of the top of the base, and a drying and shaping device evenly distributed from right to left is arranged on the top of the base and below the casting device, and the casting device comprises a mounting frame fixedly mounted on the top of the base, a polyphenylene sulfide dissolver arranged on the top of the mounting frame, and a pressure box arranged at the bottom of the mounting frame, and a casting slit is opened at the bottom of the pressure box. The preparation device for ultra-thin polyphenylene sulfide proton exchange membranes can install the casting device, the drying and shaping device, and the second mounting plate through the arrangement of the base, dissolve the polyphenylene sulfide and cast it through the arrangement of the casting device, and dry, press and shape the cast polyphenylene sulfide through the arrangement of the drying and shaping device.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-thin polyphenylene sulfide proton exchange membranes, in particular to a preparation device for ultra-thin polyphenylene sulfide proton exchange membranes. Background Art

[0002] Proton exchange membrane is a dense functional membrane that has the function of selectively permeating protons. It is a key core component in hydrogen fuel cells. In addition to having high proton conductivity, the proton exchange membrane is also required to have good mechanical strength, low dimensional change rate, low gas permeability, hydrolysis resistance, and high temperature resistance.

[0003] At present, proton exchange membranes mainly use Nafion membranes, which are perfluorosulfonic acid membranes. They are widely used due to their good performance, but their service life is limited. Especially in temperature environments above 80°C, their proton conductivity drops sharply. Polyphenylene sulfide has obvious advantages in the preparation of proton exchange membranes due to its high strength, hydrolysis resistance, and high temperature resistance. It has become the preferred material for the preparation of proton exchange membranes with long service life.

[0004] However, due to the limitations of the preparation equipment, it is currently difficult to mass-produce ultra-thin polyphenylene sulfide films. The conventional device for preparing films is hot-melt extrusion casting followed by biaxial stretching equipment. Since it is difficult for the biaxial stretching equipment to stably control the stretching thickness, the thickness of the obtained film is uneven, especially when stretching ultra-thin films, which is more difficult.

[0005] The casting method for preparing polyphenylene sulfide thin films is to dissolve polyphenylene sulfide into a solution, evenly apply it, and then form a film by evaporation and solidification of the solution. Although it can prepare ultra-thin films, it is difficult to prepare polyphenylene sulfide proton exchange membranes stably and continuously due to the intermittent operation.

[0006] In order to solve the above problems, we made improvements and proposed a preparation device for ultra-thin polyphenylene sulfide proton exchange membrane. Utility Model Content

[0007] The purpose of the utility model is to provide a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A preparation device for an ultra-thin polyphenylene sulfide proton exchange membrane comprises a base, a casting device is arranged on the left side of the top of the base, and a drying and shaping device is evenly distributed from right to left on the top of the base and below the casting device;

[0010] The casting device comprises a mounting frame fixedly mounted on the top of a base, a polyphenylene sulfide dissolver arranged on the top of the mounting frame, and a pressure box arranged on the bottom of the mounting frame, wherein a casting slit is provided at the bottom of the pressure box.

[0011] As a further solution of the utility model: a pressure pump is fixedly installed at the bottom of the polyphenylene sulfide dissolver, the output end of the pressure pump is connected to a conduit, the bottom of the conduit passes through the mounting frame and extends to the top of the pressure box.

[0012] As a further solution of the utility model: a solenoid valve is fixedly installed inside the conduit, and the bottom of the solenoid valve is connected to the top of the pressure box.

[0013] As a further solution of the utility model: two second mounting plates are fixedly installed on the left side of the top of the base, and a semicircular placement frame is fixedly installed on the relatively close side of the second mounting plates, and a through groove is opened inside the semicircular placement frame.

[0014] As a further solution of the utility model: a second motor is fixedly installed on one side of the second mounting plate which is relatively far away, an output end of the second motor passes through the second mounting plate and is fixedly installed with a rubber wheel, and the top of the rubber wheel passes through the inside of the through groove.

[0015] As a further solution of the utility model: the drying and shaping device includes a first mounting plate fixedly mounted on the front and rear sides of the top of the base, a drying roller rotatably connected between the first mounting plates, and a shaping roller arranged between the first mounting plates and located on the top of the drying roller, and the front and rear sides of the shaping roller are rotatably connected to mounting blocks.

[0016] As a further solution of the utility model: a through cavity is opened inside the first mounting plate, the mounting block passes through the through cavity to the inside of the first mounting plate, a spring is fixedly installed on the top of the mounting block, and the top of the spring is fixedly connected to the top of the inner cavity of the through cavity.

[0017] As a further solution of the utility model: limiting grooves are provided inside the first mounting plate and on both sides of the through cavity, the limiting grooves are internally slidably connected to limiting blocks, and one side of the limiting block is fixedly connected to the mounting block.

[0018] As a further solution of the utility model: a first motor is fixedly mounted on the front side of the first mounting plate on the front side of the top of the base, and an output end of the first motor passes through the first mounting plate and is fixedly connected to the front side of the drying roller.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model realizes the installation of the casting device, the drying and shaping device and the second mounting plate through the setting of the base, realizes the dissolution and casting of polyphenylene sulfide through the setting of the casting device, and realizes the drying, pressing and shaping of the cast polyphenylene sulfide through the setting of the drying and shaping device.

[0021] 2. The utility model realizes dissolving polyphenylene sulfide by setting up a polyphenylene sulfide dissolver, and realizes squeezing out the dissolved polyphenylene sulfide through the cooperation between the pressure box and the casting slit, and forms a film under the action of gravity to facilitate subsequent drying and rolling. The utility model realizes the continuous preparation of ultra-thin polyphenylene sulfide proton exchange membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane;

[0023] Figure 2 It is a schematic diagram of the structure of a casting device in a preparation device for an ultra-thin polyphenylene sulfide proton exchange membrane;

[0024] Figure 3 It is a schematic diagram of the structure of a shaping roller in a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane;

[0025] Figure 4 It is a schematic diagram of the structure of a drying roller in a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane;

[0026] Figure 5 The present invention is a schematic diagram of the structure of a winding device in a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane. In the figure: 1, base; 2, casting device; 201, mounting frame; 202, pressure pump; 203, polyphenylene sulfide dissolver; 204, conduit; 205, solenoid valve; 206, pressure box; 207, casting slot; 3, drying and shaping device; 301, first mounting plate; 302, through cavity; 303, limiting groove; 304, drying roller; 305, first motor; 306, shaping roller; 307, spring; 308, limiting block; 309, mounting block; 4, second motor; 5, second mounting plate; 6, through groove; 7, semicircular placement frame; 8, rubber wheel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation mode of the utility model clearer, the technical solution in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the implementation mode described is a part of the implementation mode of the utility model, not all the implementation modes. Based on the implementation mode of the utility model, all other implementation modes obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] See also Figure 1 , 2 and 5, a device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane, comprising a base 1, a casting device 2 is arranged on the left side of the top of the base 1, and a drying and shaping device 3 is evenly distributed from right to left on the top of the base 1 and below the casting device 2;

[0030] The casting device 2 includes a mounting frame 201 fixedly mounted on the top of the base 1 , a polyphenylene sulfide dissolver 203 disposed on the top of the mounting frame 201 , and a pressure box 206 disposed on the bottom of the mounting frame 201 . A casting slit 207 is provided at the bottom of the pressure box 206 .

[0031] A pressure pump 202 is fixedly installed at the bottom of the polyphenylene sulfide dissolver 203, and the output end of the pressure pump 202 is connected to a conduit 204. The bottom of the conduit 204 passes through the mounting frame 201 and extends to the top of the pressure box 206. The pressure pump 202 is set to pressurize the dissolved polyphenylene sulfide and pump it into the interior of the pressure box 206 for subsequent discharge. A solenoid valve 205 is fixedly installed inside the conduit 204, and the bottom of the solenoid valve 205 is connected to the top of the pressure box 206. The solenoid valve 205 is set to seal the pressure box 206 to prevent the undissolved polyphenylene sulfide solution from flowing into the interior of the pressure box 206 through the pressure pump 202 and the conduit 204.

[0032] Two second mounting plates 5 are fixedly installed on the left side of the top of the base 1, and a semicircular placement rack 7 is fixedly installed on the relatively close side of the second mounting plates 5. A through groove 6 is opened inside the semicircular placement rack 7. The semicircular placement rack 7 is installed by setting the second mounting plate 5, and the winding roller of the polyphenylene sulfide proton exchange membrane is placed by setting the semicircular placement rack 7, so as to facilitate the winding of the polyphenylene sulfide proton exchange membrane that has been produced. A second motor 4 is fixedly installed on the relatively distant side of the second mounting plate 5, and the output end of the second motor 4 passes through the second mounting plate 5 and is fixedly installed with a rubber wheel 8. The top of the rubber wheel 8 passes through the inside of the through groove 6, and the rubber wheel 8 is driven by the second motor 4 to drive the winding roller of the polyphenylene sulfide proton exchange membrane to rotate, thereby realizing the winding of the polyphenylene sulfide proton exchange membrane, and the rubber wheel 8 is set to be made of rubber material to increase the friction between the winding roller and the polyphenylene sulfide proton exchange membrane, thereby realizing the driving of the winding roller of the polyphenylene sulfide proton exchange membrane.

[0033] See also Figure 1 , 3And 4, a preparation device for ultra-thin polyphenylene sulfide proton exchange membrane, the drying and shaping device 3 includes a first mounting plate 301 fixedly mounted on the front and rear sides of the top of the base 1, a drying roller 304 rotatably connected between the first mounting plates 301, and a shaping roller 306 arranged between the first mounting plates 301 and located on the top of the drying roller 304, the front and rear sides of the shaping roller 306 are rotatably connected with mounting blocks 309, the polyphenylene sulfide under flow casting is dried by the setting of the drying roller 304, and the polyphenylene sulfide under flow casting is rolled under the cooperation with the shaping roller 306, so as to facilitate the rolling and film formation of the polyphenylene sulfide.

[0034] A through cavity 302 is provided inside the first mounting plate 301, and a mounting block 309 passes through the through cavity 302 to the inside of the first mounting plate 301. A spring 307 is fixedly installed on the top of the mounting block 309, and the top of the spring 307 is fixedly connected to the top of the inner cavity of the through cavity 302. The through cavity 302 is provided to accommodate the mounting block 309, and the spring 307 is provided to squeeze the mounting block 309, thereby achieving the lowering of the shaping roller 306 to achieve the rolling of the polyphenylene sulfide under cast film. Limiting grooves 303 are provided inside the first mounting plate 301 and on both sides of the through cavity 302. The limiting grooves 303 are internally slidably connected to the limiting blocks 308, and one side of the limiting blocks 308 is fixedly connected to the mounting block 309. The limiting grooves 303 and the limiting blocks 308 are matched to limit the mounting block 309, thereby increasing the stability of the mounting block 309 during lifting and lowering. A first motor 305 is fixedly installed on the front side of the first mounting plate 301 on the top front side of the base 1. The output end of the first motor 305 passes through the first mounting plate 301 and is fixedly connected to the front side of the drying roller 304. The drying roller 304 is driven by the setting of the first motor 305, thereby driving the polyphenylene sulfide exchange membrane for transportation.

[0035] The working principle of the utility model is as follows: polyphenylene sulfide is poured into the interior of a polyphenylene sulfide dissolver 203 for dissolution, and after the dissolution is completed, the solenoid valve 205 is opened, and the dissolved polyphenylene sulfide is pumped into the interior of a pressure box 206 through a pressure pump 202 and a conduit 204, and flows out through a casting slit 207 at the bottom of the pressure box 206, and the polyphenylene sulfide that flows out is formed into a film under the action of gravity, and the film-like polyphenylene sulfide is sent between a drying roller 304 and a shaping roller 306, and is dried by the drying roller 304, and at the same time, the shaping roller 306 is pressed close to the drying roller 304 by the spring 307 on the mounting block 309 to realize the rolling of the polyphenylene sulfide, and after the rolling is completed, the film is rolled up to the top of the winding roller at the top of the semicircular placement frame 7, and the second motor 4 drives the rubber wheel 8 to drive the winding roller to roll up the produced polyphenylene sulfide proton exchange membrane.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane, comprising a base (1), characterized in that: A casting device (2) is arranged on the left side of the top of the base (1), and evenly distributed drying and shaping devices (3) are arranged on the top of the base (1) and below the casting device (2) from right to left; The casting device (2) comprises a mounting frame (201) fixedly mounted on the top of a base (1), a polyphenylene sulfide dissolver (203) arranged on the top of the mounting frame (201), and a pressure box (206) arranged on the bottom of the mounting frame (201), wherein a casting slit (207) is provided at the bottom of the pressure box (206).

2. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 1, characterized in that: A pressure pump (202) is fixedly mounted at the bottom of the polyphenylene sulfide dissolver (203), and the output end of the pressure pump (202) is connected to a conduit (204), the bottom of which passes through the mounting frame (201) and extends to the top of the pressure box (206).

3. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 2, characterized in that: A solenoid valve (205) is fixedly installed inside the conduit (204), and the bottom of the solenoid valve (205) is connected to the top of the pressure box (206).

4. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 1, characterized in that: Two second mounting plates (5) are fixedly mounted on the left side of the top of the base (1), and a semicircular placement frame (7) is fixedly mounted on the relatively close side of each of the second mounting plates (5), and a through groove (6) is provided inside the semicircular placement frame (7).

5. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 4, characterized in that: A second motor (4) is fixedly mounted on one side of the second mounting plate (5) that is relatively far away, and an output end of the second motor (4) passes through the second mounting plate (5) and is fixedly mounted with a rubber wheel (8), and the top of the rubber wheel (8) passes through the interior of the through slot (6).

6. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 1, characterized in that: The drying and shaping device (3) comprises a first mounting plate (301) fixedly mounted on the front and rear sides of the top of the base (1), a drying roller (304) rotatably connected between the first mounting plates (301), and a shaping roller (306) disposed between the first mounting plates (301) and located on the top of the drying roller (304), wherein the front and rear sides of the shaping roller (306) are both rotatably connected to mounting blocks (309).

7. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 6, characterized in that: A through cavity (302) is provided inside the first mounting plate (301), and the mounting block (309) passes through the through cavity (302) to the inside of the first mounting plate (301). A spring (307) is fixedly mounted on the top of the mounting block (309), and the top of the spring (307) is fixedly connected to the top of the inner cavity of the through cavity (302).

8. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 7, characterized in that: Limiting grooves (303) are provided inside the first mounting plate (301) and on both sides of the through cavity (302); a limiting block (308) is slidably connected inside the limiting groove (303); and one side of the limiting block (308) is fixedly connected to the mounting block (309).

9. The device for preparing an ultra-thin polyphenylene sulfide proton exchange membrane according to claim 6, characterized in that: A first motor (305) is fixedly mounted on the front side of the first mounting plate (301) at the top front side of the base (1), and an output end of the first motor (305) passes through the first mounting plate (301) and is fixedly connected to the front side of the drying roller (304).

Images