CN220294449U - Hydrophilic polyvinylidene fluoride ultrafiltration membrane - Google Patents
Hydrophilic polyvinylidene fluoride ultrafiltration membrane Download PDFInfo
- Publication number
- CN220294449U CN220294449U CN202321681627.9U CN202321681627U CN220294449U CN 220294449 U CN220294449 U CN 220294449U CN 202321681627 U CN202321681627 U CN 202321681627U CN 220294449 U CN220294449 U CN 220294449U
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- wall
- membrane
- ultrafiltration membrane
- hydrophilic
- fixedly arranged
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- 239000012528 membrane Substances 0.000 title claims abstract description 116
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 49
- 239000002033 PVDF binder Substances 0.000 title claims abstract description 21
- 229920002981 polyvinylidene fluoride Polymers 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 20
- 210000002808 connective tissue Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a hydrophilic polyvinylidene fluoride ultrafiltration membrane, which relates to the technical field of polyvinylidene fluoride and comprises an ultrafiltration membrane main body, wherein a hydrophilic outer membrane is arranged at the bottom of the ultrafiltration membrane main body and used for improving affinity between a filter membrane and a water source, an adhesive connecting wire is arranged in the ultrafiltration membrane main body and used for improving the bearing degree of the filter membrane on force pulling, the top of the hydrophilic outer membrane is fixedly arranged at the bottom of the ultrafiltration membrane main body, a connecting filling layer is arranged on the inner wall of the ultrafiltration membrane main body, and the periphery of the surface of the connecting filling layer is fixedly arranged on the inner wall of the ultrafiltration membrane main body. The utility model solves the problem that the hydrophilicity of the filter membrane is poor because the existing filter membrane cannot be contacted and adhered with a water source when in use by the hydrophilic outer membrane, the inner water-attached layer and the outer water-attached layer, so that the contact and adhesion of the filter membrane and the water source can be realized, the affinity of the filter membrane and the water source can be conveniently improved, and the use effect of the filter membrane can be enhanced.
Description
Technical Field
The utility model relates to an ultrafiltration membrane, relates to the technical field of polyvinylidene fluoride, and in particular relates to a hydrophilic polyvinylidene fluoride ultrafiltration membrane.
Background
Polyvinylidene fluoride (PVDF) is normally a semi-crystalline polymer with a crystallinity of about 50%. Hitherto, there have been reported 5 crystal forms of α, β, γ, δ and ε, which are formed under different conditions and which are mutually convertible under certain conditions (effects of heat, electric field, mechanical and radiant energy). Of these 5 forms, the beta form is the most important, and PVDF as a piezoelectric and pyroelectric application mainly contains the beta form. The following problems exist in the prior art:
1. when the existing filter membrane is used, the existing filter membrane cannot be contacted and adhered with a water source, so that the problem of poor hydrophilicity of the filter membrane is caused;
2. the existing filter membrane cannot bear excessive force to pull in the use process, and the tensile property is poor, so that the filter membrane is easy to break.
Disclosure of Invention
The utility model provides a hydrophilic polyvinylidene fluoride ultrafiltration membrane, which aims to solve the problem that the hydrophilicity of the filter membrane is poor because the existing filter membrane cannot be contacted and adhered with a water source when in use; the other purpose is that in order to solve current filter membrane in the use, can't bear excessive dynamics and pull, and the tensile performance of pulling is poor, leads to the filter membrane to take place cracked problem easily to reach and make the filter membrane in the use, can improve the filter membrane and to the tolerance that the dynamics was pulled, strengthen the tensile performance of pulling of filter membrane, avoid the filter membrane to take place the fracture.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the hydrophilic polyvinylidene fluoride ultrafiltration membrane comprises an ultrafiltration membrane main body, wherein a hydrophilic outer membrane is arranged at the bottom of the ultrafiltration membrane main body and is used for improving the affinity of the filter membrane and a water source.
The inside of milipore filter main part is provided with the viscidity connecting wire, viscidity connecting wire is used for improving the filter membrane and to the tolerance that the dynamics was pulled.
The technical scheme of the utility model is further improved as follows: the top fixed mounting of hydrophilic adventitia is in the bottom of milipore filter main part, be provided with on the inner wall of milipore filter main part and connect the filling layer, connect the surface of filling layer around fixed mounting on the inner wall of milipore filter main part.
The technical scheme of the utility model is further improved as follows: the surface of the viscous connecting line is fixedly arranged on the inner wall of the connecting filling layer, the left side and the right side of the viscous connecting line are fixedly arranged on the inner wall of the connecting filling layer, the inner wall of the viscous connecting line is provided with a tensile connecting main line, and the left side and the right side of the tensile connecting main line are fixedly arranged on the inner wall of the viscous connecting line.
By adopting the technical scheme, the connecting filling layer in the scheme can provide a stronger stretching effect for the ultrafiltration membrane main body, so that the ultrafiltration membrane main body cannot break in the stretching process.
The technical scheme of the utility model is further improved as follows: the inner wall of the viscous connecting line is provided with a tensile filling layer around the surface of the tensile connecting line, the inner side of the tensile filling layer is fixedly arranged around the surface of the tensile connecting line, the outer side of the tensile filling layer is fixedly arranged on the inner wall of the viscous connecting line, and the left side and the right side of the tensile filling layer are fixedly arranged on the inner wall of the viscous connecting line.
By adopting the technical scheme, the filling layer is pulled through the tensile direction in the scheme to fill the inside of the viscous connecting wire, so that the viscous connecting wire has connection stretchability, and the viscous connecting wire is not easy to break.
The technical scheme of the utility model is further improved as follows: the inner wall of the viscous connecting wire and the inner side of the tensile filling layer are provided with auxiliary connecting wires, the periphery of the surface of the auxiliary connecting wire is fixedly arranged on the inner side of the tensile filling layer, and the left side and the right side of the auxiliary connecting wire are fixedly arranged on the inner wall of the viscous connecting wire.
By adopting the technical scheme, the viscous connecting wire in the scheme is used for stretching the filling layer, the auxiliary connecting wire and the stretching-resistant connecting main wire to improve the overall bearing degree of the ultrafiltration membrane main body to the pulling force.
The technical scheme of the utility model is further improved as follows: the inner wall of the hydrophilic outer membrane is provided with a water-attached inner layer, the top of the water-attached inner layer is fixedly arranged on the inner wall of the hydrophilic outer membrane, the periphery of the surface of the water-attached inner layer is fixedly arranged on the inner wall of the hydrophilic outer membrane, the bottom of the water-attached inner layer is fixedly arranged on the inner wall of the hydrophilic outer membrane, and the bottom of the water-attached outer layer is fixedly arranged on the inner wall of the hydrophilic outer membrane.
By adopting the technical scheme, the water-attached inner layer and the water-attached outer layer in the hydrophilic outer film in the scheme absorb water sources, so that the affinity of the filter membrane to the water sources is improved, and the filter membrane and the water sources can be contacted and adhered.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
the utility model provides a hydrophilic polyvinylidene fluoride ultrafiltration membrane, which aims to provide a hydrophilic outer membrane, a water-attached inner layer and a water-attached outer layer, and solves the problem that the hydrophilicity of the filtration membrane is poor because the existing filtration membrane cannot be contacted and adhered with a water source when in use, so that the filtration membrane can be contacted and adhered with the water source, the affinity of the filtration membrane and the water source is conveniently improved, and the use effect of the filtration membrane is enhanced.
The utility model provides a hydrophilic polyvinylidene fluoride ultrafiltration membrane, which aims to solve the problems that the existing filter membrane cannot bear excessive force and tear in the use process and is poor in tensile and tear resistance, so that the filter membrane is easy to break in the use process, the bearing degree of the filter membrane to force and tear can be improved, the tensile and tear resistance of the filter membrane is enhanced, and the filter membrane is prevented from breaking in the use process by combining the structures.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the main body of the ultrafiltration membrane of the present utility model;
FIG. 3 is a schematic view of an adhesive bond line deployment configuration of the present utility model;
FIG. 4 is a schematic cross-sectional structural view of the hydrophilic outer membrane of the present utility model.
In the figure: 1. an ultrafiltration membrane body; 2. a hydrophilic outer membrane; 3. connecting the filling layer; 4. an adhesive connecting wire; 5. pulling-resistant filling layer; 6. an auxiliary connecting line; 7. the tensile pull-out connection main line; 8. attaching an inner water layer; 9. and an outer layer is attached with water.
Description of the embodiments
The utility model is further illustrated by the following examples:
examples
As shown in fig. 1-4, the utility model provides a hydrophilic polyvinylidene fluoride ultrafiltration membrane, which comprises an ultrafiltration membrane main body 1, wherein a hydrophilic outer membrane 2 is arranged at the bottom of the ultrafiltration membrane main body 1, the hydrophilic outer membrane 2 is used for improving affinity of a filter membrane and a water source, an adhesive connecting wire 4 is arranged in the ultrafiltration membrane main body 1, the adhesive connecting wire 4 is used for improving the bearing degree of the filter membrane to force pulling, the top of the hydrophilic outer membrane 2 is fixedly arranged at the bottom of the ultrafiltration membrane main body 1, a connecting filling layer 3 is arranged on the inner wall of the ultrafiltration membrane main body 1, the connecting filling layer 3 can provide a stronger stretching effect for the ultrafiltration membrane main body 1, the ultrafiltration membrane main body 1 cannot break in the stretching process, the periphery of the surface of the connecting filling layer 3 is fixedly arranged on the inner wall of the ultrafiltration membrane main body 1, the periphery of the surface of the adhesive connecting wire 4 is fixedly arranged on the inner wall of the connecting filling layer 3, the left and right sides of the adhesive connecting wire 4 are fixedly arranged on the inner wall of the connecting filling layer 3, the left and right sides of the adhesive connecting wire 7 are fixedly arranged on the inner wall of the connecting wire 4.
Examples
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: the inside of stickness connecting wire 4 is provided with the tensile filling layer 5 around and being located the surface that the connecting wire 7 was pulled to the tensile on the inner wall of stickness connecting wire 4, through the filling of anti-pulling filling layer 5 to inside the stickness connecting wire 4, make stickness connecting wire 4 be difficult for taking place the fracture, the inboard fixed mounting that the connecting wire 7 was pulled to the tensile is pulled to the tensile, and the outside fixed mounting that the filling layer 5 was pulled to the tensile is on the inner wall of viscidity connecting wire 4, the left and right sides fixed mounting that the filling layer 5 was pulled to the tensile is on the inner wall of viscidity connecting wire 4, the inboard that just is located the tensile on the inner wall of viscidity connecting wire 4 and is pulled to the tensile is provided with auxiliary connection wire 6, viscidity connecting wire 4, auxiliary connection wire 6 and tensile are connected the elasticity of mainline 7 through self, improve the whole bearing capacity to the dynamics pulling of milipore filter main part 1, auxiliary connection wire 6's surface fixed mounting is on the inner wall of anti-pulling filling layer 5, and the left and right sides fixed mounting of auxiliary connection wire 6, be provided with on the inner wall 8 of hydrophilic outer membrane 2, the inner wall 8 of hydrophilic membrane 2 is on the inner wall 8, the inner wall 9 of hydrophilic membrane 2 is located the inner wall 8 and outer membrane 2 is attached to the inner wall 9 of the outer water source 2, the outer membrane is attached to the inner wall 2, the water source 9 is attached to the inner wall of the outer membrane is attached to the inner wall 2, and the water source is attached to the inner wall of the water source is attached to the inner surface of the water-hydrophilic layer 2.
The working principle of the hydrophilic polyvinylidene fluoride ultrafiltration membrane is specifically described below.
When the ultrafiltration membrane is used, as shown in figures 1-4, the affinity of the ultrafiltration membrane to the water source is improved through the adsorption of the water-attached inner layer 8 and the water-attached outer layer 9 in the hydrophilic outer film 2 at the bottom of the ultrafiltration membrane main body 1, so that the filtration membrane and the water source can be contacted and adhered, then the whole body of the adhesive connecting wire 4 in the filling layer 3 is connected through the inner connection of the ultrafiltration membrane main body 1, and in the pulling process, the elasticity of the filling layer 5, the auxiliary connecting wire 6 and the pulling-resistant connecting main wire 7 in the adhesive connecting wire 4 is improved, so that the whole body of the ultrafiltration membrane main body 1 is subjected to strong pulling.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. The hydrophilic polyvinylidene fluoride ultrafiltration membrane comprises an ultrafiltration membrane main body (1), and is characterized in that: the bottom of the ultrafiltration membrane main body (1) is provided with a hydrophilic outer membrane (2), and the hydrophilic outer membrane (2) is used for improving the affinity of the filter membrane and a water source;
the ultrafiltration membrane comprises an ultrafiltration membrane main body (1), wherein an adhesive connecting wire (4) is arranged in the ultrafiltration membrane main body (1), and the adhesive connecting wire (4) is used for improving the bearing degree of the ultrafiltration membrane to the force pulling.
2. A hydrophilic polyvinylidene fluoride ultrafiltration membrane according to claim 1, wherein: the top fixed mounting of hydrophilic adventitia (2) is in the bottom of milipore filter main part (1), be provided with on the inner wall of milipore filter main part (1) and connect filling layer (3), connect the surface of filling layer (3) around fixed mounting on the inner wall of milipore filter main part (1).
3. A hydrophilic polyvinylidene fluoride ultrafiltration membrane according to claim 1, wherein: the surface of the adhesive connecting line (4) is fixedly arranged on the inner wall of the connecting filling layer (3) all around, the left side and the right side of the adhesive connecting line (4) are fixedly arranged on the inner wall of the connecting filling layer (3), the inner wall of the adhesive connecting line (4) is provided with a tensile connecting main line (7), and the left side and the right side of the tensile connecting main line (7) are fixedly arranged on the inner wall of the adhesive connecting line (4).
4. A hydrophilic polyvinylidene fluoride ultrafiltration membrane according to claim 1, wherein: the anti-pulling adhesive connecting line is characterized in that the inner wall of the adhesive connecting line (4) is provided with an anti-pulling filling layer (5) on the periphery of the surface of the anti-pulling connecting main line (7), the inner side of the anti-pulling filling layer (5) is fixedly arranged on the periphery of the surface of the anti-pulling connecting main line (7), the outer side of the anti-pulling filling layer (5) is fixedly arranged on the inner wall of the adhesive connecting line (4), and the left side and the right side of the anti-pulling filling layer (5) are fixedly arranged on the inner wall of the adhesive connecting line (4).
5. A hydrophilic polyvinylidene fluoride ultrafiltration membrane according to claim 1, wherein: the inner wall of the sticky connecting wire (4) is provided with an auxiliary connecting wire (6) which is positioned on the inner side of the tensile filling layer (5), the periphery of the surface of the auxiliary connecting wire (6) is fixedly arranged on the inner side of the tensile filling layer (5), and the left side and the right side of the auxiliary connecting wire (6) are fixedly arranged on the inner wall of the sticky connecting wire (4).
6. A hydrophilic polyvinylidene fluoride ultrafiltration membrane according to claim 1, wherein: the novel water-permeable outer membrane is characterized in that a water-permeable inner layer (8) is arranged on the inner wall of the hydrophilic outer membrane (2), the top of the water-permeable inner layer (8) is fixedly arranged on the inner wall of the hydrophilic outer membrane (2), the periphery of the surface of the water-permeable inner layer (8) is fixedly arranged on the inner wall of the hydrophilic outer membrane (2), a water-permeable outer layer (9) is fixedly arranged on the inner wall of the hydrophilic outer membrane (2) and the bottom of the water-permeable inner layer (8), and the bottom of the water-permeable outer layer (9) is fixedly arranged on the inner wall of the hydrophilic outer membrane (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681627.9U CN220294449U (en) | 2023-06-29 | 2023-06-29 | Hydrophilic polyvinylidene fluoride ultrafiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681627.9U CN220294449U (en) | 2023-06-29 | 2023-06-29 | Hydrophilic polyvinylidene fluoride ultrafiltration membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220294449U true CN220294449U (en) | 2024-01-05 |
Family
ID=89346376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321681627.9U Active CN220294449U (en) | 2023-06-29 | 2023-06-29 | Hydrophilic polyvinylidene fluoride ultrafiltration membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220294449U (en) |
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2023
- 2023-06-29 CN CN202321681627.9U patent/CN220294449U/en active Active
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