CN108854548A - A kind of water purifier hollow fiber ultrafiltration membrane - Google Patents
A kind of water purifier hollow fiber ultrafiltration membrane Download PDFInfo
- Publication number
- CN108854548A CN108854548A CN201810684656.8A CN201810684656A CN108854548A CN 108854548 A CN108854548 A CN 108854548A CN 201810684656 A CN201810684656 A CN 201810684656A CN 108854548 A CN108854548 A CN 108854548A
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- CN
- China
- Prior art keywords
- ultrafiltration membrane
- hollow fiber
- water purifier
- fiber ultrafiltration
- membrane according
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Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
-
- 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
- B01D69/087—Details relating to the spinning process
- B01D69/088—Co-extrusion; Co-spinning
-
- 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
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
Abstract
The invention discloses a kind of water purifier hollow fiber ultrafiltration membranes and preparation method thereof, the hollow fiber ultrafiltration membrane that the present invention is mixed with according to a certain percentage by polyvinyl chloride and polyethersulfone resin, in the case where their opposite exclusive uses, due to there is the effect of collaboration between the two, the hollow fiber ultrafiltration membrane obtained has more excellent performance, so that the hydrophily for the ultrafiltration membrane that the two is mixed is more preferable, has bigger flux, and there is very strong toughness, physical life is high.
Description
Technical field
The present invention relates to the preparation field of hollow fiber ultrafiltration membrane, specially a kind of water purifier hollow fiber ultrafiltration membrane and its
Preparation method.
Background technique
Ultrafiltration membrane is that a kind of aperture specification is consistent, and nominal pore range is 0.01 micron of micropore filtering film below.In film
Side impose appropriate pressure, the solute molecule less than aperture can be sifted out, to separate molecular weight greater than 500 dalton (atoms
Mass unit), partial size be greater than 10 nanometers of particle.Ultrafiltration membrane is one of the polymeric membrane for separation developed earliest, super in the sixties
Filter device is achieved that industrialization, and the ultrafiltration membrane in existing many water purifiers is by polyethersulfone resin or polyvinyl chloride system
At, hardly realize that the ultrafiltration membrane that the two is mixed has better hydrophily and flux, can preferably be applied to water purifier
In, improve filter effect and efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of water purifier hollow fiber ultrafiltration membranes and preparation method thereof, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of water purifier hollow fiber ultrafiltration membrane is used to prepare the casting solution of hollow fiber ultrafiltration membrane in water purifier according to quality hundred
Point ratio includes：Polyethersulfone resin 10-20%, polyvinyl chloride 5-10%, polar solvent 30-55%, polar micromolecules pore former 8-
15%, hydrophilic agent 6-10%.
Preferably, the polar solvent is one or both of dimethyl acetamide, dimethylformamide mixture.
Preferably, the polar micromolecules pore former is polyethylene glycol and/or polyvinylpyrrolidone.
Preferably, the hydrophilic agent is the bipolymer of vinyl chloride, vinyl acetate.
The preparation method of above-mentioned water purifier hollow fiber ultrafiltration membrane, includes the following steps：
S1. proportionally successively by polyethersulfone resin, polyvinyl chloride, polar solvent, polar micromolecules pore former and hydrophilic agent
It is added in agitator tank；
S2. the liquid in agitator tank is stirred to dissolution under the conditions of certain temperature, then cooled to room temperature.It stands
Deaeration obtains casting solution；
S3. casting solution is sent into spinning machine, is extruded into hollow form fiber with spinning head, stand water after 5-10s in air
Bathe freezing film；
S4. film S3 obtained, which is placed in glycerite, to be impregnated, and holding is finally dried.
Preferably, casting solution is under the conditions of 40-80 °C of temperature made of stirring in step S2, and the standing and defoaming time is
24-48h。
Preferably, casting solution hauling speed is 0.3-1.0m/s in step S3, and solidification bath temperature is 10-20 °C.
Preferably, it is best that soaking time, which is 36-48h, in step S4.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention presses one by polyvinyl chloride and polyethersulfone resin
The hollow fiber ultrafiltration membrane that fixed ratio is mixed with, in the case where their opposite exclusive uses, due to existing between the two
The effect of collaboration, the hollow fiber ultrafiltration membrane obtained have more excellent performance, so that the ultrafiltration membrane that the two is mixed
Hydrophily is more preferable, has bigger flux, and have very strong toughness, physical life is high.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution：
Embodiment one：
A kind of water purifier hollow fiber ultrafiltration membrane is used to prepare the casting solution of hollow fiber ultrafiltration membrane in water purifier according to quality hundred
Point ratio includes：Polyethersulfone resin 10%, polyvinyl chloride 5%, polar solvent 30%, polar micromolecules pore former 8%, hydrophilic agent
6%.
The polar solvent is one or both of dimethyl acetamide, dimethylformamide mixture.
The polar micromolecules pore former is polyethylene glycol and/or polyvinylpyrrolidone.
The hydrophilic agent is the bipolymer of vinyl chloride, vinyl acetate.
The preparation method of above-mentioned water purifier hollow fiber ultrafiltration membrane, which is characterized in that include the following steps：
S1. proportionally successively by polyethersulfone resin, polyvinyl chloride, polar solvent, polar micromolecules pore former and hydrophilic agent
It is added in agitator tank；
S2. the liquid in agitator tank is stirred to dissolution under the conditions of certain temperature, then cooled to room temperature.It stands
Deaeration obtains casting solution；
S3. casting solution is sent into spinning machine, is extruded into hollow form fiber with spinning head, water-bath is solidifying after standing 5s in air
Gu film forming；
S4. film S3 obtained, which is placed in glycerite, to be impregnated, and holding is finally dried.
Casting solution is under the conditions of 40 °C of temperature made of stirring in step S2, and the standing and defoaming time is for 24 hours.
Casting solution hauling speed is 0.3m/s in step S3, and solidification bath temperature is 10 °C.
Soaking time is 36h in step S4.
Embodiment two：
A kind of water purifier hollow fiber ultrafiltration membrane is used to prepare the casting solution of hollow fiber ultrafiltration membrane in water purifier according to quality hundred
Point ratio includes：Polyethersulfone resin 15%, polyvinyl chloride 7.5%, polar solvent 42.5%, polar micromolecules pore former 11.5%,
Hydrophilic agent 8%.
The polar solvent is one or both of dimethyl acetamide, dimethylformamide mixture.
The polar micromolecules pore former is polyethylene glycol and/or polyvinylpyrrolidone.
The hydrophilic agent is the bipolymer of vinyl chloride, vinyl acetate.
The preparation method of above-mentioned water purifier hollow fiber ultrafiltration membrane, which is characterized in that include the following steps：
S1. proportionally successively by polyethersulfone resin, polyvinyl chloride, polar solvent, polar micromolecules pore former and hydrophilic agent
It is added in agitator tank；
S2. the liquid in agitator tank is stirred to dissolution under the conditions of certain temperature, then cooled to room temperature.It stands
Deaeration obtains casting solution；
S3. casting solution is sent into spinning machine, is extruded into hollow form fiber with spinning head, stand water-bath after 7.5s in air
Freezing film；
S4. film S3 obtained, which is placed in glycerite, to be impregnated, and holding is finally dried.
Casting solution is under the conditions of 60 °C of temperature made of stirring in step S2, and the standing and defoaming time is 36h.
Casting solution hauling speed is 0.75m/s in step S3, and solidification bath temperature is 15 °C.
Soaking time is 42h in step S4.
Embodiment three：
A kind of water purifier hollow fiber ultrafiltration membrane is used to prepare the casting solution of hollow fiber ultrafiltration membrane in water purifier according to quality hundred
Point ratio includes：Polyethersulfone resin 20%, polyvinyl chloride 10%, polar solvent 55%, polar micromolecules pore former 15%, hydrophilic agent
10%.
The polar solvent is one or both of dimethyl acetamide, dimethylformamide mixture.
The polar micromolecules pore former is polyethylene glycol and/or polyvinylpyrrolidone.
The hydrophilic agent is the bipolymer of vinyl chloride, vinyl acetate.
The preparation method of above-mentioned water purifier hollow fiber ultrafiltration membrane, which is characterized in that include the following steps：
S1. proportionally successively by polyethersulfone resin, polyvinyl chloride, polar solvent, polar micromolecules pore former and hydrophilic agent
It is added in agitator tank；
S2. the liquid in agitator tank is stirred to dissolution under the conditions of certain temperature, then cooled to room temperature.It stands
Deaeration obtains casting solution；
S3. casting solution is sent into spinning machine, is extruded into hollow form fiber with spinning head, stand water-bath after 10s in air
Freezing film；
S4. film S3 obtained, which is placed in glycerite, to be impregnated, and holding is finally dried.
Casting solution is under the conditions of 80 °C of temperature made of stirring in step S2, and the standing and defoaming time is 48h.
Casting solution hauling speed is 1.0m/s in step S3, and solidification bath temperature is 20 °C.
Soaking time is 48h in step S4.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
Claims (8)
1. a kind of water purifier hollow fiber ultrafiltration membrane, which is characterized in that be used to prepare the casting of hollow fiber ultrafiltration membrane in water purifier
Film liquid includes according to mass percent：Polyethersulfone resin 10-20%, polyvinyl chloride 5-10%, polar solvent 30-55%, polarity
Small molecule pore former 8-15%, hydrophilic agent 6-10%.
2. a kind of water purifier hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：The polar solvent is two
One or both of methylacetamide, dimethylformamide mixture.
3. a kind of water purifier hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：The polar micromolecules at
Hole agent is polyethylene glycol and/or polyvinylpyrrolidone.
4. a kind of water purifier hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：The hydrophilic agent is chloroethene
The bipolymer of alkene, vinyl acetate.
5. the preparation method of water purifier hollow fiber ultrafiltration membrane according to claim 1-4, which is characterized in that packet
Include following steps：
S1. proportionally successively by polyethersulfone resin, polyvinyl chloride, polar solvent, polar micromolecules pore former and hydrophilic agent
It is added in agitator tank；
S2. the liquid in agitator tank is stirred to dissolution under the conditions of certain temperature, then cooled to room temperature.It stands
Deaeration obtains casting solution；
S3. casting solution is sent into spinning machine, is extruded into hollow form fiber with spinning head, stand water after 5-10s in air
Bathe freezing film；
S4. film S3 obtained, which is placed in glycerite, to be impregnated, and holding is finally dried.
6. a kind of preparation method of water purifier hollow fiber ultrafiltration membrane according to claim 5, it is characterised in that：Step S2
Middle casting solution is under the conditions of 40-80 °C of temperature made of stirring, and the standing and defoaming time is 24-48h.
7. a kind of preparation method of water purifier hollow fiber ultrafiltration membrane according to claim 5, it is characterised in that：Step S3
Middle casting solution hauling speed is 0.3-1.0m/s, and solidification bath temperature is 10-20 °C.
8. a kind of preparation method of water purifier hollow fiber ultrafiltration membrane according to claim 5, it is characterised in that：Step S4
Middle soaking time is that 36-48h is best.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810684656.8A CN108854548A (en) | 2018-06-28 | 2018-06-28 | A kind of water purifier hollow fiber ultrafiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810684656.8A CN108854548A (en) | 2018-06-28 | 2018-06-28 | A kind of water purifier hollow fiber ultrafiltration membrane |
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| Publication Number | Publication Date |
|---|---|
| CN108854548A true CN108854548A (en) | 2018-11-23 |
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ID=64295405
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810684656.8A Pending CN108854548A (en) | 2018-06-28 | 2018-06-28 | A kind of water purifier hollow fiber ultrafiltration membrane |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130040620A (en) * | 2011-10-14 | 2013-04-24 | 에치투엘 주식회사 | Preparation method of hollow fiber membrane with high mechanical properties made of hydrophilic modified polyvinylidenefluoride for water treatment |
| CN104923093A (en) * | 2015-07-01 | 2015-09-23 | 芜湖市晨曦新型建材科技有限公司 | Hollow fiber ultrafiltration membrane of water purifier and preparation method for hollow fiber ultrafiltration membrane |
| CN106110907A (en) * | 2016-06-24 | 2016-11-16 | 盐城海普润膜科技有限公司 | A kind of production method of inner support hollow-fibre membrane |
| CN106139921A (en) * | 2016-08-23 | 2016-11-23 | 北京中环膜材料科技有限公司 | The preparation method of TPVC hollow fiber ultrafiltration membrane and the milipore filter of preparation thereof |
-
2018
- 2018-06-28 CN CN201810684656.8A patent/CN108854548A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130040620A (en) * | 2011-10-14 | 2013-04-24 | 에치투엘 주식회사 | Preparation method of hollow fiber membrane with high mechanical properties made of hydrophilic modified polyvinylidenefluoride for water treatment |
| CN104923093A (en) * | 2015-07-01 | 2015-09-23 | 芜湖市晨曦新型建材科技有限公司 | Hollow fiber ultrafiltration membrane of water purifier and preparation method for hollow fiber ultrafiltration membrane |
| CN106110907A (en) * | 2016-06-24 | 2016-11-16 | 盐城海普润膜科技有限公司 | A kind of production method of inner support hollow-fibre membrane |
| CN106139921A (en) * | 2016-08-23 | 2016-11-23 | 北京中环膜材料科技有限公司 | The preparation method of TPVC hollow fiber ultrafiltration membrane and the milipore filter of preparation thereof |
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Application publication date: 20181123 |