CN105363356A - Porous hollow polyvinylidene fluoride fiber membrane - Google Patents
Porous hollow polyvinylidene fluoride fiber membrane Download PDFInfo
- Publication number
- CN105363356A CN105363356A CN201510936303.9A CN201510936303A CN105363356A CN 105363356 A CN105363356 A CN 105363356A CN 201510936303 A CN201510936303 A CN 201510936303A CN 105363356 A CN105363356 A CN 105363356A
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- weight portion
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- kynoar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F114/18—Monomers containing fluorine
- C08F114/22—Vinylidene fluoride
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a porous hollow polyvinylidene fluoride fiber membrane. Polyvinylidene fluoride is taken as raw materials of the membrane and prepared through the following steps that 1, 1-2 parts by weight of carboxymethylcellulose, 2.8 parts by weight of hydrogen peroxide and 3.6 parts by weight of an inorganic alkali solution are put into a reaction kettle to be mixed evenly, 0.8 part by weight of lauryl sodium sulfate, 18.5 parts by weight of pentafluoroethane solvent and 0.8 part by weight of a phenylmethylsulfonyl fluoride solution are put into the reaction kettle, and reacting under stirring is performed for 45 minutes at minus 7 DEG C; 2, 3.4 parts by weight of glycerol monostearate, 6.2 parts by weight of a sodium tripolyphosphate solution, 69 parts by weight of vinylidene fluoride monomers and 1.9 parts by weight of 2-methyl-1-ethyl cyclopentane are put into the reaction kettle, reacting under stirring is performed at 23 DEG C, and reacting is stopped when the pressure is decreased to below 0.23 MPa; 3, filtering, washing and drying are performed, and then the powdery polyvinylidene fluoride is obtained. The porous hollow polyvinylidene fluoride fiber membrane has the corrosion resistance, heat resistance, cold resistance, oxidation resistance and weather resistance.
Description
Technical field
The present invention relates to Kynoar porous hollow fiber membrane.
Background technology
Corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, the weather resistance of existing milipore filter, diffusion barrier, hollow-fibre membrane all have much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, and the film of preparation has excellent corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, weather resistance.
For achieving the above object, technical scheme of the present invention is a kind of Kynoar porous hollow fiber membrane of design, and take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 ~ 2 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Preferably, Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Preferably, Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 2 weight portion carboxymethyl celluloses, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Advantage of the present invention and beneficial effect are: provide a kind of Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, and the film of preparation has excellent corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, weather resistance.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Embodiment 1
A kind of Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 ~ 2 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Embodiment 2
Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Embodiment 3
Kynoar porous hollow fiber membrane, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 2 weight portion carboxymethyl celluloses, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. Kynoar porous hollow fiber membrane, is characterized in that, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 ~ 2 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
2. Kynoar porous hollow fiber membrane according to claim 1, is characterized in that, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 1 weight portion carboxymethyl cellulose, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
3. Kynoar porous hollow fiber membrane according to claim 1, is characterized in that, take Kynoar as the raw material of film, described Kynoar is prepared as follows:
1) 2 weight portion carboxymethyl celluloses, 2.8 weight portion hydrogen peroxide, 3.6 parts by weight of inorganic aqueous slkalis are dropped in reactor, mix, drop into 0.8 weight portion lauryl sodium sulfate, 18.5 weight portion pentafluoroethane solvents, 0.8 weight portion phenylmethylsulfonyl fluoride solution again ,-7 DEG C of stirring reactions 45 minutes;
2) 3.4 parts by weight glycerol monostearate, 6.2 weight portion sodium tripolyphosphate solutions, 69 weight portion vinylidene fluoride monomers, 1.9 weight portion 2-methyl isophthalic acid-ethyl group pentamethylene are dropped into again, at 23 DEG C of stirring reactions, pressure drop is to cessation reaction during below 0.23MPa;
3) filtration, washing, drying, obtain Powdered Kynoar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510936303.9A CN105363356A (en) | 2015-12-16 | 2015-12-16 | Porous hollow polyvinylidene fluoride fiber membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510936303.9A CN105363356A (en) | 2015-12-16 | 2015-12-16 | Porous hollow polyvinylidene fluoride fiber membrane |
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| Publication Number | Publication Date |
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| CN105363356A true CN105363356A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510936303.9A Withdrawn CN105363356A (en) | 2015-12-16 | 2015-12-16 | Porous hollow polyvinylidene fluoride fiber membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304280A (en) * | 2016-04-18 | 2017-10-31 | 深圳市万福格聚合物科技有限公司 | A kind of preparation method of polyvinylidene fluoride material |
-
2015
- 2015-12-16 CN CN201510936303.9A patent/CN105363356A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304280A (en) * | 2016-04-18 | 2017-10-31 | 深圳市万福格聚合物科技有限公司 | A kind of preparation method of polyvinylidene fluoride material |
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Application publication date: 20160302 |