CN117865720A - Waterproof breathable composite film and preparation method and application thereof - Google Patents
Waterproof breathable composite film and preparation method and application thereof Download PDFInfo
- Publication number
- CN117865720A CN117865720A CN202310279273.3A CN202310279273A CN117865720A CN 117865720 A CN117865720 A CN 117865720A CN 202310279273 A CN202310279273 A CN 202310279273A CN 117865720 A CN117865720 A CN 117865720A
- Authority
- CN
- China
- Prior art keywords
- composite film
- waterproof breathable
- breathable composite
- polyacrylic acid
- whisker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 27
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 229920002125 Sokalan® Polymers 0.000 claims description 16
- 239000004584 polyacrylic acid Substances 0.000 claims description 16
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 12
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 10
- 239000003129 oil well Substances 0.000 claims description 10
- 241000894006 Bacteria Species 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 5
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims 2
- 238000007723 die pressing method Methods 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000009740 moulding (composite fabrication) Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 6
- 238000009832 plasma treatment Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003206 sterilizing agent Substances 0.000 description 2
- JKNZUZCGFROMAZ-UHFFFAOYSA-L [Ag+2].[O-]S([O-])(=O)=O Chemical compound [Ag+2].[O-]S([O-])(=O)=O JKNZUZCGFROMAZ-UHFFFAOYSA-L 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007952 growth promoter Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a waterproof and breathable composite film, a preparation method and application thereof.
Description
Technical Field
The invention belongs to the technical field of new materials, and in particular relates to a membrane, a preparation method and application thereof
Background
The oil field oil well is steel material, is buried underground aquifer, and underground aquifer has a large amount of sulfate reducing bacteria, and these sulfate reducing bacteria release hydrogen sulfide gas through anaerobic respiration and corrode oil well pipeline, so oil well pipeline often receives the erosion of sulfate reducing bacteria, leads to the corruption serious, consequently loses several hundred billion yuan each year, and the prior art is regularly put into the sterilizing agent in the pit, and the cost is higher, and the input of a large amount of sterilizing agent easily causes environmental problem.
The inorganic film material has high compressive strength, excellent corrosion resistance and excellent chemical stability due to the ceramic material, but the inorganic film is a brittle material which is easy to damage and is difficult to realize seamless connection with the steel pipe. The organic film material has good flexibility, but also has the problems of poor mechanical property, aging resistance and corrosion resistance.
Disclosure of Invention
The invention aims to provide a waterproof breathable composite film, a preparation method and application thereof, and aims to solve the problems in the background technology. In order to achieve the above purpose, the invention adopts the following technical scheme: the waterproof breathable composite film comprises an inorganic film skeleton and an organic coating layer, wherein the inorganic film skeleton is a porous body formed by an aluminum borate whisker frame, and the organic coating layer is polyacrylic acid. The invention also provides a preparation method of the waterproof breathable composite film, and the waterproof breathable composite film is prepared by weighing aluminum borate (4 Al) 2 O 3 ·B 2 O 3 ) Adding 1-3% of tungsten oxide as whisker growth auxiliary agent into the mixture, uniformly mixing the raw materials, molding the mixture under 3-20 MPa into a thin ring, placing the molded sample into a sealed ceramic sagger, sintering and molding at 1000-1400 ℃, immersing the molded sample into a mixed water solution of polyacrylic acid and copper sulfate, wherein the mass fraction of the copper sulfate is 5%, drying to obtain a composite membrane material of polyacrylic acid coated aluminum borate whisker skeleton, and carrying out low-temperature plasma treatment on the composite membrane material to realize the aim of hydrophobic organic membrane skeleton, specifically, modifying polyacrylic acid on mullite whisker skeleton by using a membrane material through low-temperature plasma gas between electrodes so as to obtain the waterproof and breathable composite membrane.
The waterproof and breathable composite membrane prepared by the method is used for preventing corrosion of oil well underwater, and particularly for preventing corrosion of sulfate reducing bacteria. When the oil well pipeline corrosion-resistant composite membrane is particularly used, the annular composite membrane is installed in an oil well to be closely attached to the inner wall of the oil well, sulfate reducing bacteria in oil water are isolated by the composite membrane, and hydrogen sulfide gas released by the sulfate reducing bacteria is absorbed by copper sulfate, so that the oil well pipeline is protected from corrosion.
The beneficial effects are that: the ceramic whisker skeleton provides a high-strength and high-flux composite membrane, and can continuously protect corrosion of sulfate silver reducing bacteria in oil well pipelines.
Drawings
FIG. 1 is an SEM image of a composite film of example 1
FIG. 2 is a contact angle test of the composite film of example 1 with water
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, remain within the scope of the invention.
Example 1:
weighing aluminum borate (4 Al) 2 O 3 ·B 2 O 3 ) Adding alumina and silicon dioxide with stoichiometric ratio, adding tungsten oxide with mass fraction of 1% as whisker growth auxiliary agent, uniformly mixing the above raw materials, 3MPa mould pressing to form thin ring, placing the formed sample into a closed ceramic sagger, 1000 sintering and forming, immersing the sintered sample into polyacrylic acid and copper sulfate mixed water solution, wherein the mass fraction of copper sulfate is 5%, drying to obtain polyacrylic acid coated aluminum borate whisker skeleton composite membrane material, then implementing the aim of hydrophobic organic membrane skeleton by low-temperature plasma treatment, specifically modifying polyacrylic acid on aluminum borate whisker skeleton by low-temperature plasma gas between electrodes through membrane material so as to obtain waterproof and breathable composite membrane
Example 2:
weighing aluminum borate (4 Al) 2 O 3 ·B 2 O 3 ) Adding 2% tungsten oxide as whisker growth promoter, mixing the above materials uniformly, molding at 10MPa to form thin ring, sintering at 1100deg.C in a sealed ceramic sagger, soaking in mixed water solution of polyacrylic acid and copper sulfate, wherein the copper sulfate has a mass fraction of 5%, and oven drying to obtain composite of polyacrylic acid coated aluminum borate whisker skeletonThe membrane material is combined, and the aim of hydrophobic organic membrane skeleton is fulfilled by the composite membrane material through low-temperature plasma treatment, specifically, polyacrylic acid on the aluminum borate whisker skeleton is modified by the low-temperature plasma gas between electrodes through the membrane material so as to obtain the waterproof and breathable composite membrane
Example 3:
weighing aluminum borate (4 Al) 2 O 3 ·B 2 O 3 ) The method comprises the steps of adding alumina and boron oxide with stoichiometric ratio, adding tungsten oxide with mass fraction of 3% as whisker growth auxiliary agent, uniformly mixing the raw materials, molding under 20MPa to form a thin ring, placing a molded sample into a sealed ceramic sagger, sintering and molding at 1400 ℃, immersing the molded sample into a mixed water solution of polyacrylic acid and copper sulfate, wherein the mass fraction of the copper sulfate is 5%, drying to obtain a composite membrane material with polyacrylic acid coated with aluminum borate whisker skeleton, and carrying out low-temperature plasma treatment on the composite membrane material to achieve the aim of hydrophobic organic membrane skeleton, specifically, modifying polyacrylic acid on the aluminum borate whisker skeleton by low-temperature plasma gas between electrodes through the membrane material so as to obtain the waterproof and breathable composite membrane.
Claims (5)
1. A waterproof breathable composite membrane, characterized by comprising: the porous body of aluminium borate whisker forms the skeleton of the composite film, the whisker is coated with a hydrophobically modified polyacrylic acid organic film, and copper sulfate is distributed in the organic film.
2. The preparation method of the waterproof breathable composite film is characterized by comprising the following steps of: weighing aluminum borate (4 Al) 2 O 3 ·B 2 O 3 ) Adding 1-3% of tungsten oxide as whisker growth auxiliary agent into the mixed solution, uniformly mixing the above-mentioned raw materials, die-pressing to form thin ring, placing the formed sample into a closed ceramic sagger, high-temperature sintering and forming, soaking the sintered sample into the mixed water solution of polyacrylic acid and cupric sulfate, in which the weight percentage of cupric sulfate is 5%, drying to obtain the composite film material of polyacrylic acid-coated aluminium borate whisker skeleton, then making said composite film material pass through low-temperature plasmaThe subvolume treatment achieves the hydrophobic nature of the organic film to provide a waterproof breathable composite film.
3. According to the method for preparing the waterproof breathable composite film, the molding pressure is 3-20 MPa.
4. According to claim 2, a method for preparing the waterproof breathable composite film, wherein the high-temperature sintering temperature is 1000-1400 ℃.
5. A use of a waterproof breathable membrane according to claim 1 or claim, in oil wells to protect against corrosion by sulfate reducing bacteria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279273.3A CN117865720A (en) | 2023-03-21 | 2023-03-21 | Waterproof breathable composite film and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310279273.3A CN117865720A (en) | 2023-03-21 | 2023-03-21 | Waterproof breathable composite film and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117865720A true CN117865720A (en) | 2024-04-12 |
Family
ID=90585255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310279273.3A Pending CN117865720A (en) | 2023-03-21 | 2023-03-21 | Waterproof breathable composite film and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117865720A (en) |
-
2023
- 2023-03-21 CN CN202310279273.3A patent/CN117865720A/en active Pending
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