CN104043341A - High-flux antioxidant filter membrane - Google Patents

High-flux antioxidant filter membrane Download PDF

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Publication number
CN104043341A
CN104043341A CN201410281498.3A CN201410281498A CN104043341A CN 104043341 A CN104043341 A CN 104043341A CN 201410281498 A CN201410281498 A CN 201410281498A CN 104043341 A CN104043341 A CN 104043341A
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CN
China
Prior art keywords
filter membrane
described
anti
high flux
characterized
Prior art date
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CN201410281498.3A
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Chinese (zh)
Inventor
不公告发明人
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南通惠然生物科技有限公司
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Priority to CN201410281498.3A priority Critical patent/CN104043341A/en
Publication of CN104043341A publication Critical patent/CN104043341A/en

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Abstract

The invention relates to a high-flux antioxidant filter membrane which comprises an amphipathic copolymer, a homopolymer, a crosslinking agent, piperazine, a surfactant and a strong acid salt, wherein the amphipathic copolymer and the homopolymer form a porous carrier membrane, and the piperazine and the crosslinking agent are prepared into a solvent. Compared with the prior art, the high-flux antioxidant filter membrane has the advantages of being simple in process, good in membrane surface hydrophilicity, high in flux and strong in resistance to oxidation, and saving the cost.

Description

The anti-oxidant filter membrane of a kind of high flux

Technical field

The present invention relates to a kind of filter membrane, be specially the anti-oxidant filter membrane of a kind of high flux.

Background technology

Membrane technology is applied to the particulates such as suspended particulate, colloid, dissolved organic matter and ion in Separation of Water and has obtained development rapidly as isolation technics of new generation in the past few decades.NF membrane is a kind of Novel separation film of aperture between reverse osmosis membrane and milipore filter, because it has multi-band electric charge on nano level membrane aperture, film, allow low point of alite by holding back organic matter and the multivalent ion of higher molecular weight, there is unique separating property, higher separation accuracy.Compared with other diffusion barrier, NF membrane has that membrane flux is larger, process infiltration forces down, selects isolating ions, operating pressure power low, system to require the features such as low.At present, Nanofiltration-membrane technique has been widely used in the field such as water softening and brackish water desalination, drink water purifying, feed separation purifying and concentrated, wastewater treatment and middle water reuse, cleaner production, has obtained good economic and social benefit.

Utilizing at present interface polymerization reaction to generate PA membrane is the method for mainly preparing composite nanometer filtering film, but in practical engineering application due to the pollution of film, need Chemical cleaning frequently, especially repeatedly use liquor natrii hypochloritis to clean after nanofiltration or reverse osmosis membrane, polyamide composite bed is by chemical degradation, desalting effect worsens, and affects the life-span of effluent quality and film.In addition, some contain oxidation unit operation water treatment technology in, due to not resistance to oxidation of common NF membrane, need extra other processing units that increase, limited the development of NF membrane in this field, increased processing cost.

Summary of the invention

The object of this invention is to provide the anti-oxidant filter membrane of a kind of high flux, technique of the present invention is simple, has improved flux and the non-oxidizability of filter membrane.

The present invention realizes by the following technical solutions:

The anti-oxidant filter membrane of a kind of high flux, comprises amphipathic copolymer, homopolymers, crosslinking agent, piperazine, surfactant, strong acid salt, and described amphipathic common polymers and homopolymers composition porous carrier film, described piperazine and crosslinking agent are prepared into solvent.

Described amphipathic copolymer is ethene-vinyl alcohol.

Described homopolymers is polyether sulfone.

Described crosslinking agent is phenylenediamine.

Described surfactant is pyromellitic trimethylsilyl chloride.

Described strong acid salt is zephiran.

Described porous carrier film is placed in solvent and floods 1 ~ 5 minute, forms even liquid film.

Dipping porous carrier film later contacts 1 ~ 2 minute with benzene three formyl chlorides, carries out interfacial reaction.

The invention has the beneficial effects as follows: compared with prior art, technique of the present invention is simple, and film surface hydrophilicity is good, high flux, non-oxidizability is strong, has saved cost.

Detailed description of the invention

The anti-oxidant filter membrane of a kind of high flux, comprises amphipathic copolymer, homopolymers, crosslinking agent, piperazine, surfactant, strong acid salt, and described amphipathic common polymers and homopolymers composition porous carrier film, described piperazine and crosslinking agent are prepared into solvent; Described amphipathic copolymer is ethene-vinyl alcohol, and described homopolymers is polyether sulfone, and described crosslinking agent is phenylenediamine, and described surfactant is pyromellitic trimethylsilyl chloride, and described strong acid salt is zephiran; Described porous carrier film is placed in solvent and floods 1 ~ 5 minute, forms even liquid film, and dipping porous carrier film later contacts 1 ~ 2 minute with benzene three formyl chlorides, carries out interfacial reaction.

First produce porous carrier film with amphipathic common polymers ethene-vinyl alcohol and homopolymers polyether sulfone, then porous carrier film is immersed in the aqueous solution that contains piperazine, phenylenediamine, alkyl-dimethyl benzyl ammonium chloride, fully infiltrate 3 minutes, treat that surface forms even liquid film, remove the unnecessary aqueous phase solution in surface, again the porous carrier film that forms even liquid film with contain surfactant benzene three formyl chloride organic solutions and contact 65 seconds, carry out interfacial reaction, after reaction finishes, put into drying baker 10 minutes, can obtain the described anti-oxidant filter membrane of high flux.

Claims (8)

1. the anti-oxidant filter membrane of high flux, it is characterized in that: comprise amphipathic copolymer, homopolymers, crosslinking agent, piperazine, surfactant, strong acid salt, described amphipathic common polymers and homopolymers composition porous carrier film, described piperazine and crosslinking agent are prepared into solvent.
2. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described amphipathic copolymer is ethene-vinyl alcohol.
3. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described homopolymers is polyether sulfone.
4. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described crosslinking agent is phenylenediamine.
5. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described surfactant is pyromellitic trimethylsilyl chloride.
6. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described strong acid salt is zephiran.
7. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: described porous carrier film is placed in solvent and floods 1 ~ 5 minute, forms even liquid film.
8. the anti-oxidant filter membrane of a kind of high flux according to claim 1, is characterized in that: dipping porous carrier film later contacts 1 ~ 2 minute with benzene three formyl chlorides, carries out interfacial reaction.
CN201410281498.3A 2014-06-23 2014-06-23 High-flux antioxidant filter membrane CN104043341A (en)

Priority Applications (1)

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CN201410281498.3A CN104043341A (en) 2014-06-23 2014-06-23 High-flux antioxidant filter membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410281498.3A CN104043341A (en) 2014-06-23 2014-06-23 High-flux antioxidant filter membrane

Publications (1)

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CN104043341A true CN104043341A (en) 2014-09-17

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008093544A (en) * 2006-10-10 2008-04-24 Nitto Denko Corp Composite semipermeable membrane and manufacturing method thereof
CN102160970A (en) * 2011-03-31 2011-08-24 天津大学 Flux controllable anti-oxidation polyethersulfone nanofiltration membrane and preparation method thereof
CN102755844A (en) * 2012-07-24 2012-10-31 浙江大学 Preparation method for surface ionization modified polysulfone ultrafiltration membrane
CN102908914A (en) * 2012-10-25 2013-02-06 贵阳时代沃顿科技有限公司 Composite separating membrane with alloy ultrafiltration layer and preparation method of composite separating membrane
CN103108689A (en) * 2010-06-01 2013-05-15 3M创新有限公司 Coated porous materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008093544A (en) * 2006-10-10 2008-04-24 Nitto Denko Corp Composite semipermeable membrane and manufacturing method thereof
CN103108689A (en) * 2010-06-01 2013-05-15 3M创新有限公司 Coated porous materials
CN102160970A (en) * 2011-03-31 2011-08-24 天津大学 Flux controllable anti-oxidation polyethersulfone nanofiltration membrane and preparation method thereof
CN102755844A (en) * 2012-07-24 2012-10-31 浙江大学 Preparation method for surface ionization modified polysulfone ultrafiltration membrane
CN102908914A (en) * 2012-10-25 2013-02-06 贵阳时代沃顿科技有限公司 Composite separating membrane with alloy ultrafiltration layer and preparation method of composite separating membrane

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