CN105498291A - Oil-water separation net membrane with self-cleaning function and preparation method thereof - Google Patents
Oil-water separation net membrane with self-cleaning function and preparation method thereof Download PDFInfo
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- CN105498291A CN105498291A CN201511022264.8A CN201511022264A CN105498291A CN 105498291 A CN105498291 A CN 105498291A CN 201511022264 A CN201511022264 A CN 201511022264A CN 105498291 A CN105498291 A CN 105498291A
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- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
Abstract
The invention discloses an oil-water separation net membrane with a self-cleaning function. The oil-water separation net membrane is prepared by taking a stainless steel net, an aluminum alloy net or a copper net as a base and chemically grafting (methyl) acrylic polymer containing amphoteric groups on the surfaces of the net and meshes, wherein the thickness of the net membrane is 0.50-2.50mm; the length and width of the net membrane are randomly set according to the requirements; the contact angle between the net membrane and water in air is less than 5 degrees; the contact angle between the net membrane and normal hexane under water is 160-165 degrees. A preparation method of the oil-water separation net membrane provided by the invention is simple; the stability is high; the permeability of pore space is high; the net membrane has the self-cleaning function; the oil-water separation efficiency is high; the oil-water separation net membrane can be applied to the fields of complex oil water mixture separation, oil-containing waste water treatment, and the like.
Description
Technical field
The present invention relates to a kind of oil-water separation mesh film with self-purification function and preparation method thereof, belong to organo-mineral complexing technical field of function materials.
Background technology
Oil-polluted water wide material sources, as oil exploitation, crude oil leakage, ship ballast water, and the industry such as chemical industry, iron and steel, food, weaving, machining all can discharge a large amount of oil-polluted waters in environment.Oil-polluted water is contaminated environment both, destroys the ecological balance again, and harm humans is healthy, therefore effectively processes significant to oil-polluted water.In oily waste water treatment, water-oil separating is conducive to water purification, simultaneously by water-oil separating, removes the impurity such as the moisture in product oil significant to raising oil quality.
Utilizing the hydrophobic of nethike embrane or hydrophily, make oil or water selective by nethike embrane, is one of important channel realizing water-oil separating.Usually have two type water-oil separating films: one is hydrophobic oleophilic oil film, optionally make oil pass through, another kind is hydrophilic oleophobic membrane, optionally makes water pass through.The oil-water separation mesh film with super-hydrophobic super-oleophylic function is individually disclosed in Chinese patent application CN1387932A, CN1721030A, CN101518695A and CN101708384A, water-oil separating can be realized, but also Shortcomings, as complicated process of preparation, what have employs fluorochemical, what have needs hot setting etc., and in use nethike embrane is easy to lose oil-water separating function because of oil blocking.By contrast, super hydrophilic super oleophobic membrane refuses functional oil under water and more aobvious advantage because itself just possessing, and this nethike embrane has self-purification function.Individually disclose in Chinese patent application CN104874295A, CN10716676A, CN103157299A and CN104549172A and have super oil-water separation mesh film that is hydrophilic and super oleophobic function under water, its oil-water separating function is achieved mainly through crosslinked on nethike embrane of shitosan.But, through resource retrieve amphiphilic polymers, metal retinal surface is modified, by the super hydrophilic of amphiphilic polymers and under water super oleophobic property realize water-oil separating, and there is not been reported to possess the patent of self-purification function and document.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of oil-water separation mesh film with self-purification function and preparation method thereof.
The oil-water separation mesh film with self-purification function of the present invention, with stainless (steel) wire, aluminium alloy net or copper mesh are substrate, obtained containing (methyl) acrylic polymer of amphiprotic group at the chemical grafting treated of net surface and mesh, it is characterized in that: described in there is the oil-water separation mesh film of self-purification function by 100 ~ 400 object stainless (steel) wires, aluminium alloy net or copper mesh and chemical graft are in ampholytic monomer (methyl) the acrylic acid sulphonic acid betaine on its surface, (methyl) acrylate carboxybetaine or (methyl) acrylate phosphocholine, or the polymer brush that the mixture of any mol ratio of its two or three monomer is formed is formed, the thickness of wherein said nethike embrane is 0.50 ~ 2.50mm, and it is long and wide sets arbitrarily as required, and described nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 160 ° ~ 165 ° under water with the contact angle of n-hexane.
Wherein: the above-mentioned oil-water separation mesh film with self-purification function is preferably by 100 ~ 400 object stainless (steel) wires, aluminium alloy net or copper mesh and chemical graft are in the 2-methylacryoyloxyethyl phosphocholine on its surface, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine, or the mixture of 2-methylacryoyloxyethyl carboxybetaine and 2-methylacryoyloxyethyl sulphonic acid betaine 1:1 in molar ratio, or 2-methylacryoyloxyethyl carboxybetaine: 2-methylacryoyloxyethyl sulphonic acid betaine: the polymer brush that the mixture of 2-methylacryoyloxyethyl phosphocholine 1:1:2 is in molar ratio formed is formed.
Wherein: the polymer brush that the above-mentioned oil-water separation mesh film with self-purification function is most preferably formed by 200 object stainless (steel) wires, aluminium alloy net or copper mesh and the 2-methylacryoyloxyethyl phosphocholine of chemical graft in its surface, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine is formed.
The preparation method with the oil-water separation mesh film of self-purification function of the present invention, step is:
(1) be 0.50 ~ 2.50mm by thickness, in the Piranha solution that 100 ~ 400 object stainless (steel) wires of its long and wide setting arbitrarily according to need, aluminium alloy net or copper mesh immersion are made into for 3:1 by volume by 98% (mass ratio) concentrated sulfuric acid and 30% (volume ratio) hydrogen peroxide, then be slowly heated to solution bubble-free overflow, after cooling, take out nethike embrane and soak more than 2h in deionized water, put nitrogen and flow down drying for standby;
(2) nethike embrane obtained for step (1) is immersed in the pre-cooled dichloromethane solution containing 2-bromine isobutyl acylbromide, triethylamine of mixture of ice and water, stirring reaction 2 ~ 3h, reaction more than 12h is continued under putting room temperature again, then take out nethike embrane to clean in deionized water, put nitrogen and flow down drying for standby; Wherein, the 2-bromine isobutyl acylbromide in described dichloromethane solution and the mol ratio of triethylamine are 1:2;
(3) nethike embrane obtained for step (2) is immersed containing methyl alcohol, ampholytic monomer, 2, in the mixed solution of 2 '-bipyridyl, CuBr, cool in liquid nitrogen, through freezing-vacuumize-melt 3 cyclic processes, finally be filled with nitrogen, at 30 DEG C of stirred in water bath reaction 4 ~ 10h, take out nethike embrane and clean in ethanol and deionized water respectively, put nitrogen and flow down drying, namely obtain the oil-water separation mesh film with self-purification function; Wherein, described ampholytic monomer is (methyl) acrylic acid sulphonic acid betaine, (methyl) acrylate carboxybetaine or (methyl) acrylate phosphocholine, or the mixture of any mol ratio of its two or three monomer; Methyl alcohol in described mixed solution, ampholytic monomer, 2, the mol ratio of 2 '-bipyridyl, CuBr is 400 ~ 2000:40 ~ 100:2 ~ 3:1.
Above-mentioned have in the preparation method of the oil-water separation mesh film of self-purification function: described ampholytic monomer is preferably 2-methylacryoyloxyethyl phosphocholine, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine, or the mixture of 2-methylacryoyloxyethyl carboxybetaine and 2-methylacryoyloxyethyl sulphonic acid betaine 1:1 in molar ratio, or 2-methylacryoyloxyethyl carboxybetaine: 2-methylacryoyloxyethyl sulphonic acid betaine: the mixture of 2-methylacryoyloxyethyl phosphocholine 1:1:2 in molar ratio.
Above-mentioned have in the preparation method of the oil-water separation mesh film of self-purification function: the methyl alcohol in described mixed solution, ampholytic monomer, 2, and the mol ratio of 2 '-bipyridyl, CuBr is preferably 800 ~ 1500:40 ~ 70:2 ~ 3:1.
The invention discloses a kind of oil-water separation mesh film with self-purification function and preparation method thereof, that amphiphilic polymers is grafted on metal retinal surface, utilize its super hydrophilic and super oleophobic performance under water, realize water-oil separating and nethike embrane self-purification function, oil-water separation mesh film of the present invention considerably reduces oily clogging, improves separative efficiency.
To sum up, utilize amphiphilic polymers to modify metal retinal surface, there is good oil-water separation, and there is good self-purification function.This mainly comes from the hydration of amphiprotic group in polymer, amphion is combined with hydrone height by the ion-dipole effect of two charhing units between water, form orderly and fastening interface water layer in amphiphilic polymers/water termination, this is the basic reason that amphiphilic polymers has super oleophobic function under water.Nethike embrane provided by the invention can be used as the upgraded product of water-oil separating material, is expected to produce good social benefit and economic worth.
Detailed description of the invention
For being easy to understand the present invention further, the present invention is further elaborated for the following example.These embodiments have certain representativeness, but can not include all examples, only for clearly the present invention being described, and are not used in and limit the scope of the invention.
Embodiment 1
(1) be 0.50 ~ 1.50mm by thickness, 200 object stainless steel nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to solution bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.4mmol), triethylamine (0.8mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (10mL), 2-methylacryoyloxyethyl phosphocholine (12mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.2mmol), cool in liquid nitrogen.Through freezing-vacuumize-melt 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 5h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 165 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 2
(1) be 0.1 ~ 1.50mm by thickness, 200 object stainless steel nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.4mmol), triethylamine (0.8mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (10mL), 2-methylacryoyloxyethyl sulphonic acid betaine (12mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.2mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 5h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 162 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 3
(1) be 1.5 ~ 2.0mm by thickness, 200 object stainless steel nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.4mmol), triethylamine (0.8mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (10mL), 2-methylacryoyloxyethyl carboxybetaine (12mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.2mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 5h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 163 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 4
(1) be 0.50 ~ 1.00mm by thickness, 200 object copper mesh films of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.3mmol), triethylamine (0.6mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (15mL), 2-methylacryoyloxyethyl sulphonic acid betaine (15mmol), 2, in the mixed solution of 2 '-bipyridyl (0.8mmol), CuBr (0.4mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 6h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 160 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 5
(1) be 2.00 ~ 2.50mm by thickness, 300 object aluminium alloy nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.5mmol), triethylamine (1.0mmol) of mixture of ice and water, after stirring reaction 3h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (12mL), 2-methylacryoyloxyethyl carboxybetaine (12mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.3mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 6h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 160 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 6
(1) be 1.00mm by thickness, 200 object stainless steel nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.4mmol), triethylamine (0.8mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (10mL), 2-methylacryoyloxyethyl carboxybetaine (6mmol), 2-methylacryoyloxyethyl sulphonic acid betaine (6mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.2mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 5h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 164 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Embodiment 7
(1) be 0.80 ~ 1.50mm by thickness, 200 object stainless steel nethike embranes of its long and wide setting arbitrarily according to need immerse in Piranha solution (98% concentrated sulfuric acid and 30% hydrogen peroxide volume ratio are 3:1), are slowly heated to bubble-free spilling.After cooling, take out nethike embrane and soak in deionized water, nitrogen flows down drying for standby;
(2) nethike embrane (1) obtained immerses in the pre-cooled 20mL dichloromethane solution containing 2-bromine isobutyl acylbromide (0.4mmol), triethylamine (0.8mmol) of mixture of ice and water, after stirring reaction 2h, room temperature continues reaction and spends the night, take out nethike embrane to clean in deionized water, nitrogen flows down drying for standby;
(3) nethike embrane (2) obtained immerses containing methyl alcohol (10mL), 2-methylacryoyloxyethyl carboxybetaine (3mmol), 2-methylacryoyloxyethyl sulphonic acid betaine (3mmol), 2-methylacryoyloxyethyl phosphocholine (6mmol), 2, in the mixed solution of 2 '-bipyridyl (0.6mmol), CuBr (0.2mmol), cool in liquid nitrogen.Through freezing-vacuumize-thawing method 3 cyclic processes, be finally filled with nitrogen, in 30 DEG C of water-baths electromagnetic agitation reaction 5h.Take out nethike embrane to clean in ethanol and deionized water respectively, nitrogen flows down drying, namely obtains the oil-water separation mesh film with self-purification function.
This nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 164 ° under water, can realizes rapidly and efficiently being separated to oil water mixture with the contact angle of n-hexane, and surface, without remaining greasy dirt, has good self-cleaning effect.
Claims (6)
1. one kind has the oil-water separation mesh film of self-purification function, with stainless (steel) wire, aluminium alloy net or copper mesh are substrate, obtained containing (methyl) acrylic polymer of amphiprotic group at the chemical grafting treated of net surface and mesh, it is characterized in that: described in there is the oil-water separation mesh film of self-purification function by 100 ~ 400 object stainless (steel) wires, aluminium alloy net or copper mesh and chemical graft are in ampholytic monomer (methyl) the acrylic acid sulphonic acid betaine on its surface, (methyl) acrylate carboxybetaine or (methyl) acrylate phosphocholine, or the polymer brush that the mixture of any mol ratio of its two or three monomer is formed is formed, the thickness of wherein said nethike embrane is 0.50 ~ 2.50mm, and it is long and wide sets arbitrarily as required, and described nethike embrane is less than 5 ° with the contact angle of water in atmosphere, is 160 ° ~ 165 ° under water with the contact angle of n-hexane.
2. the oil-water separation mesh film with self-purification function according to claim 1, it is characterized in that: described in there is the oil-water separation mesh film of self-purification function by 100 ~ 400 object stainless (steel) wires, aluminium alloy net or copper mesh and chemical graft are in the 2-methylacryoyloxyethyl phosphocholine on its surface, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine, or the mixture of 2-methylacryoyloxyethyl carboxybetaine and 2-methylacryoyloxyethyl sulphonic acid betaine 1:1 in molar ratio, or 2-methylacryoyloxyethyl carboxybetaine: 2-methylacryoyloxyethyl sulphonic acid betaine: the polymer brush that the mixture of 2-methylacryoyloxyethyl phosphocholine 1:1:2 is in molar ratio formed is formed.
3. the oil-water separation mesh film with self-purification function according to claim 2, is characterized in that: described in there is self-purification function the polymer brush that formed by 200 object stainless (steel) wires, aluminium alloy net or copper mesh and the 2-methylacryoyloxyethyl phosphocholine of chemical graft in its surface, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine of oil-water separation mesh film form.
4. have the preparation method of the oil-water separation mesh film of self-purification function described in claim 1, step is:
(1) be 0.50 ~ 2.50mm by thickness, in the Piranha solution that 100 ~ 400 object stainless (steel) wires of its long and wide setting arbitrarily according to need, aluminium alloy net or copper mesh immersion are made into for 3:1 by volume by 98% (mass ratio) concentrated sulfuric acid and 30% (volume ratio) hydrogen peroxide, then be slowly heated to solution bubble-free overflow, after cooling, take out nethike embrane and soak more than 2h in deionized water, put nitrogen and flow down drying for standby;
(2) nethike embrane obtained for step (1) is immersed in the pre-cooled dichloromethane solution containing 2-bromine isobutyl acylbromide, triethylamine of mixture of ice and water, stirring reaction 2 ~ 3h, reaction more than 12h is continued under putting room temperature again, then take out nethike embrane to clean in deionized water, put nitrogen and flow down drying for standby; Wherein, the 2-bromine isobutyl acylbromide in described dichloromethane solution and the mol ratio of triethylamine are 1:2;
(3) nethike embrane obtained for step (2) is immersed containing methyl alcohol, ampholytic monomer, 2, in the mixed solution of 2 '-bipyridyl, CuBr, cool in liquid nitrogen, through freezing-vacuumize-melt 3 cyclic processes, finally be filled with nitrogen, at 30 DEG C of stirred in water bath reaction 4 ~ 10h, take out nethike embrane and clean in ethanol and deionized water respectively, put nitrogen and flow down drying, namely obtain the oil-water separation mesh film with self-purification function; Wherein, described ampholytic monomer is (methyl) acrylic acid sulphonic acid betaine, (methyl) acrylate carboxybetaine or (methyl) acrylate phosphocholine, or the mixture of any mol ratio of its two or three monomer; Methyl alcohol in described mixed solution, ampholytic monomer, 2, the mol ratio of 2 '-bipyridyl, CuBr is 400 ~ 2000:40 ~ 100:2 ~ 3:1.
5. there is the preparation method of the oil-water separation mesh film of self-purification function according to claim 4, it is characterized in that: described ampholytic monomer is 2-methylacryoyloxyethyl phosphocholine, 2-methylacryoyloxyethyl sulphonic acid betaine or 2-methylacryoyloxyethyl carboxybetaine, or the mixture of 2-methylacryoyloxyethyl carboxybetaine and 2-methylacryoyloxyethyl sulphonic acid betaine 1:1 in molar ratio, or 2-methylacryoyloxyethyl carboxybetaine: 2-methylacryoyloxyethyl sulphonic acid betaine: the mixture of 2-methylacryoyloxyethyl phosphocholine 1:1:2 in molar ratio.
6. have the preparation method of the oil-water separation mesh film of self-purification function according to claim 4, it is characterized in that: the methyl alcohol in described mixed solution, ampholytic monomer, 2, the mol ratio of 2 '-bipyridyl, CuBr is 800 ~ 1500:40 ~ 70:2 ~ 3:1.
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| CN108654576A (en) * | 2018-06-15 | 2018-10-16 | 山东交通学院 | It is a kind of that there is antifouling and Dye Adsorption function water-oil separating material and preparation method thereof |
| CN115414797A (en) * | 2022-08-19 | 2022-12-02 | 电子科技大学长三角研究院(湖州) | Preparation method and application of metal net film coated with silicon nitride ceramic fibers |
| CN115414797B (en) * | 2022-08-19 | 2024-04-26 | 电子科技大学长三角研究院(湖州) | Preparation method and application of metal net film coated with silicon nitride ceramic fiber |
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