CN106076129B - A kind of preparation method of polyamide nanofiltration membrane - Google Patents
A kind of preparation method of polyamide nanofiltration membrane Download PDFInfo
- Publication number
- CN106076129B CN106076129B CN201610637308.6A CN201610637308A CN106076129B CN 106076129 B CN106076129 B CN 106076129B CN 201610637308 A CN201610637308 A CN 201610637308A CN 106076129 B CN106076129 B CN 106076129B
- Authority
- CN
- China
- Prior art keywords
- reaction monomers
- nanofiltration membrane
- membrane
- solvent
- preparation
- 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.)
- Active
Links
Classifications
-
- 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
- B01D71/56—Polyamides, e.g. polyester-amides
-
- 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
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- 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
- B01D67/0006—Organic membrane manufacture by chemical reactions
-
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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 present invention provides a kind of preparation methods of polyamide nanofiltration membrane, include the following steps：One carrier film is provided；The first reaction monomers solution is provided to infiltrate the surface of carrier film, the first reaction monomers solution includes：(i) the first reaction monomers, first reaction monomers are containing phenyl ring and amide group, the multi-arm compound that end is amino；(ii) it is used for the first solvent of first reaction monomers；Second reaction monomers solution is provided, the surface of the carrier film infiltrated is contacted with the second reaction monomers solution, obtains composite membrane, the second reaction monomers solution includes：(i) the second reaction monomers, second reaction monomers are polynary acyl chlorides；(ii) it is used for the second solvent of second reaction monomers；The composite membrane is heat-treated, the polyamide nanofiltration membrane is obtained.The surface of polyamide nanofiltration membrane produced by the present invention has stronger hydrophily, while antifouling property is also effectively improved.
Description
Technical field
The invention belongs to material for water treatment preparing technical field more particularly to a kind of preparation methods of polyamide nanofiltration membrane.
Background technology
Since twentieth century, population increase and social economy's fast development caused by shortage of water resources be our mesh
The important development problem that front is faced, membrane separation technique are the emerging technologies to grow up in recent decades, are applied to water process and lead
Domain provides an important research direction for the solution of shortage of water resources problem.
NF membrane is a kind of novel separation film developed after typical reverse osmosis composite membrane the 1980s,
Its pore diameter range is between reverse osmosis membrane and ultrafiltration membrane, about ran.Currently, NF membrane is in medical and health food water
Processing and environmental protection etc. have been more and more widely used in fields, compare ultrafiltration membrane and reverse osmosis membrane, and NF membrane has unique
Advantage, its molecular cut off have divalent or high valence ion, especially anion and are more than 98% 200~2000 or so
Rejection.In addition separation process of nanofiltration membrane also has operating pressure low compared with reverse osmosis technology, is discharged efficient, condensed water
Discharge the advantages that less.
On the other hand, NF membrane faces an important problem applied to water treatment field：That is membrane pollution problem, fouling membrane
Phenomenon is commonly due to the absorption on the surface of the film such as organic substance or microorganism.In film actual moving process, film surface is held
Easily absorption is by the organic molecule or inorganic ion etc. in filtered fluid so that and Pore Blocking causes membrane flux to decline rapidly,
Greatly reduce the filter efficiency of film.Then improve the contamination resistance of film surface into the research hotspot of scientific research personnel.
Invention content
For the above problem in the prior art, the main purpose of the present invention is to provide a kind of systems of polyamide nanofiltration membrane
The surface of Preparation Method, the polyamide nanofiltration membrane has stronger hydrophily, while antifouling property is also effectively improved.
In order to achieve the above object, the present invention adopts the following technical scheme that：A kind of preparation method of polyamide nanofiltration membrane, packet
Include following steps：
One carrier film is provided；
The first reaction monomers solution is provided to infiltrate the surface of carrier film, the first reaction monomers solution includes：(i)
One reaction monomers, first reaction monomers are containing phenyl ring and amide group, the multi-arm compound that end is amino；(ii) it is used for
First solvent of first reaction monomers；
Second reaction monomers solution is provided, the surface of the carrier film infiltrated is contacted with the second reaction monomers solution, is obtained
To composite membrane, the second reaction monomers solution includes：(i) the second reaction monomers, second reaction monomers are polynary acyl chlorides
Class；(ii) it is used for the second solvent of second reaction monomers；
The composite membrane is heat-treated, the polyamide nanofiltration membrane is obtained；
Wherein, first solvent and second solvent form binary system.
As a further preference, the carrier film is selected from the ultrafiltration of polysulfones, polyether sulfone, Kynoar and polyacrylonitrile
Film.
As a further preference, the multi-arm compound, has the following structure formula：
As a further preference, first reaction monomers are using p-phenylenediamine as core, and synthesis contains phenyl ring and amide
Group, the multi-arm compound that end is amino.
As a further preference, first solvent includes water.
As a further preference, the polynary acyl chloride is selected from paraphthaloyl chloride, o-phthaloyl chloride and equal benzene three
Formyl chloride.
As a further preference, second solvent is selected from n-hexane, normal heptane and dimethylbenzene.
As a further preference, with the first reaction monomers solution, the second reaction monomers solution impregnation or
Behind the surface of contact carrier film, the air drying of carrier film at ambient conditions is to remove remaining solvent.
As a further preference, in the first reaction monomers solution monomer molecule concentration (w/v) be 0.2%~
10%.
As a further preference, in the second reaction monomers solution monomer molecule a concentration of (w/v) 0.05%~
0.8%
As a further preference, the processing time on the surface with the first reaction monomers solution impregnation carrier film is 60
~180s.
As a further preference, the surface by the carrier film infiltrated contacted with the second reaction monomers solution when
Between be 30~120s.
As a further preference, the temperature of the heat treatment is 35 DEG C~95 DEG C, and the time is 30s~300s.
The beneficial effects of the invention are as follows：
(1) it for the multi-arm compound of polyamino is aqueous phase monomers that the present invention, which use a kind of end, and polynary acyl chloride is oil phase
Monomer makes two-phase monomer fully be reacted on the surface of basement membrane and polyamide composite nanofiltration membrane is made using the method for interfacial polymerization, by
There is a large amount of hydrophilic amide group in the polyamide functional layer generated in basement membrane so that the composite membrane hydrophilicity of preparation is notable
It improves, while stain resistance also greatly improves.
(2) present invention synthesizes composite nanometer filtering film, experimentation operation by the method for interfacial polymerization on the basis of basement membrane
Simply, reaction condition is mild.
(3) material therefor abundance in the preparation process of NF membrane of the present invention, it is cheap, nontoxic, safe to use, and environment
It is friendly.
(4) compared with the ultrafiltration membrane before modification, contact angle is substantially reduced polyamide nanofiltration membrane produced by the present invention, hydrophilic
Property is improved, and antifouling property has also obtained apparent enhancing.
Description of the drawings
Fig. 1 is the process flow diagram of the preparation method of polyamide nanofiltration membrane of the embodiment of the present invention.
Fig. 2 is the infrared test figure of polyamide nanofiltration membrane and polysulfones basement membrane that the embodiment of the present invention 1 obtains.
Fig. 3 a are the contact angle test chart of prior art polysulfones basement membrane.
Fig. 3 b are the contact angle test chart for the polyamide nanofiltration membrane that the embodiment of the present invention 3 obtains.
Fig. 4 is the polyamide nanofiltration membrane that the embodiment of the present invention 4 obtains and existing polysulfones basement membrane under the same conditions to methyl
The contrast schematic diagram of the adsorbance of orange.
Specific implementation mode
The present invention solves prior art NF membrane antipollution energy by providing a kind of preparation method of polyamide nanofiltration membrane
The problem of force difference.
To solve the above-mentioned problems, as shown in Figure 1, the main think of of the preparation method of polyamide nanofiltration membrane of the embodiment of the present invention
Road is as follows：Include the following steps：
S01:One carrier film is provided；
S02:With the surface of the first reaction monomers solution impregnation carrier film, the first reaction monomers solution includes：(i)
One reaction monomers, first reaction monomers are using p-phenylenediamine as core, and synthesis is amino containing phenyl ring and amide group, end
Multi-arm compound；(ii) it is used for the first solvent of first reaction monomers；
S03:The surface of the carrier film infiltrated is contacted with the second reaction monomers solution, obtains composite membrane, described second
Reaction monomers solution includes：(i) the second reaction monomers, second reaction monomers are polynary acyl chlorides；(ii) it is used for described the
Second solvent of two reaction monomers；
S04:The composite membrane is heat-treated, the polyamide nanofiltration membrane is obtained；
Wherein, first solvent and second solvent form binary system.
In the step S01, the carrier film can be the materials systems such as polysulfones, polyether sulfone, Kynoar or polyacrylonitrile
The ultrafiltration membrane obtained, the basement membrane as interfacial reaction.
In the step S02, the first reaction monomers of multi-arm compound may be selected as aqueous phase monomers, most of polarity is molten
Agent can dissolve multi-arm compound and obtain aqueous phase monomers solution, and therefore, first solvent can be water.
The multi-arm compound can be prepared by the following procedure method and be made, including steps are as follows：1. with p-phenylenediamine and propylene
Sour methyl esters is raw material, using glacial acetic acid as solvent, is synthesized by Michael addition reaction in the multi-arm compound that end is ester group
Between product；2. using methanol as solvent, amidation process is occurred by above-mentioned intermediate product and ethylenediamine, it is amino to obtain end
Multi-arm compound, as aqueous phase monomers raw material used in interfacial reaction.
In the step S03, the second reaction monomers of polynary acyl chloride may be selected as oil phase monomer, including but not limited to pair
Phthalyl chloride, o-phthaloyl chloride or pyromellitic trimethylsilyl chloride, may be selected using with the immiscible organic solvent of water as oil phase solvent
(the second solvent), second solvent may include but be not limited to n-hexane, normal heptane or dimethylbenzene etc..
The embodiment of the present invention is prepared for the multi-arm compound that a kind of end is polyamino, and with this using carrier film as basement membrane
For aqueous phase monomers, polynary acyl chloride is oil phase monomer, keeps two-phase monomer abundant on the surface of basement membrane using the method for interfacial polymerization
Polyamide composite nanofiltration membrane is made in reaction, since the polyamide functional layer generated in basement membrane has a large amount of hydrophilic amide group,
So that the composite membrane hydrophilicity prepared significantly improves, while stain resistance also greatly improves, and under the same terms, composite membrane absorbs
Pollutant than basement membrane much less.
Monomer molecule concentration (w/v) can be 0.2%~10% in first reaction monomers solution described in the embodiment of the present invention.
The concentration of polynary acyl chloride can be (w/v) 0.05%~0.8% in the second reaction monomers solution
The processing time with the surface of the first reaction monomers solution impregnation carrier film may be selected to be 60~180s.It is described
It is to be selected as 30~120s by the time that the surface of the carrier film infiltrated contacts or infiltrates with the second reaction monomers solution.
In the step S04, the temperature of the heat treatment is chosen as 35 DEG C~95 DEG C, and the time is to be selected as 30s~300s.
The interface polymerization reaction is commonly considered as being happened at the first reaction monomers solution to form two-phase and the second reaction
Interface between monomer solution.May include mutually each the monomer of dissolving or the solution of combination thereof.The monomer of the dissolving
Concentration it is changeable.It is dense that variable in system can include but is not limited to the property of the solvent, the property of the monomer, monomer
Degree, reaction temperature and reaction time.Such variable can be controlled to limit the performance of the film, for example, membrane flux, anti-pollution
Metachromia energy, function layer thickness.
In order to which above and other purpose, feature and the advantage of the present invention can be clearer and more comprehensible, number cited below particularly is implemented
Example, to illustrate the preparation method of polyamide nanofiltration membrane of the present invention.
Embodiment 1
Using polysulfone ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm compound conduct of amino
Aqueous phase monomers, using the multi-arm compound and paraphthaloyl chloride as the solute aqueous phase solution that compound concentration is 1% respectively and dense
Degree is 0.16% oil-phase solution, and the aqueous phase solvent is water, and the oil phase solvent is n-hexane；Polysulfone ultrafiltration membrane is taken out, it will
It is fixed, and infiltrates surface 60s, naturally dry with above-mentioned aqueous phase solution, then infiltrate membrane surface 30s with above-mentioned oil-phase solution, from
After so drying, 55 DEG C of heat treatment 30s obtain target product.Two curves are prior art ultrafiltration membrane and the present invention respectively in Fig. 2
The infared spectrum of embodiment target product NF membrane, it can be seen that the infrared curve graph of ultrafiltration membrane and NF membrane is essentially identical, phase
Than ultrafiltration membrane, NF membrane of the embodiment of the present invention is in 1574cm-1、1633cm-1And 3400cm-1Nearby there is apparent absorption peak,
And this is N-H ,-CO- vibration absorption peak and the N-H stretching vibration absworption peaks at hydrogen bond in amidocarbonylation respectively.Illustrate this hair
Bright embodiment nanofiltration film surface has the presence of amido bond, successfully in the compound upper polyamide functional layer of ultrafiltration membrane surface.
Embodiment 2
Using poly (ether-sulfone) ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is that the multi-arm compound of amino is made
It is respectively 1.5% and 0.18% using the multi-arm compound and paraphthaloyl chloride as solute compound concentration for aqueous phase monomers
Water phase and oil-phase solution, the aqueous phase solvent are water, and the oil phase solvent is n-hexane；Polysulfone ultrafiltration membrane is taken out, is fixed,
Surface 90s, naturally dry are infiltrated with above-mentioned aqueous phase solution, then membrane surface 60s, naturally dry are infiltrated with above-mentioned oil-phase solution
Afterwards, 65 DEG C of heat treatment 90s.
Embodiment 3
Using polysulfone ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm compound conduct of amino
Aqueous phase monomers, using the multi-arm compound and paraphthaloyl chloride as solute compound concentration be respectively 2% and 0.18% water phase with
Oil-phase solution, the aqueous phase solvent are water, and the oil phase solvent is n-hexane；Polysulfone ultrafiltration membrane is taken out, is fixed, use is above-mentioned
Aqueous phase solution infiltrates surface 120s, naturally dry, then infiltrates membrane surface 90s, after natural drying, 75 DEG C with above-mentioned oil-phase solution
It is heat-treated 150s.Fig. 3 (a) and 3 (b) are respectively the contact angle test chart of 3 composite nanometer filtering film of polysulfones basement membrane and the embodiment of the present invention,
It can be seen that the pure water contact angle of polysulfone ultrafiltration membrane is 74.4 °, and it is modified by interfacial polymerization, the embodiment of the present invention 3 is compound
The pure water contact angle of NF membrane is 61.3 °, and contact angle reduces 13 ° or so, is illustrated after composite modified, composite film surface
Hydrophily have larger improvement.
Embodiment 4
Using polysulfone ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm compound conduct of amino
Aqueous phase monomers, using the multi-arm compound and paraphthaloyl chloride as solute compound concentration be respectively 2.5% and 0.2% water phase with
Oil-phase solution, the aqueous phase solvent are water, and the oil phase solvent is dimethylbenzene；Polysulfone ultrafiltration membrane is taken out, is fixed, use is above-mentioned
Aqueous phase solution infiltrates surface 150s, naturally dry, then infiltrates membrane surface 120s, after natural drying, 85 with above-mentioned oil-phase solution
DEG C heat treatment 210s.Fig. 4 is by Staticadsorption experiment, and simulation methyl orange is pollution sources, and it is real with the present invention to investigate polysulfones basement membrane
Apply the antifouling property of 4 composite nanometer filtering film of example.It can be seen from the figure that polysulfones basement membrane is compared, composite nanometer filtering film under the same terms
The adsorbance of methyl orange decreased significantly, average about low 30%, illustrates modified, the anti-pollution of composite membrane by interfacial polymerization
Metachromia can obtain apparent improvement.
Embodiment 5
Using polyvinylidene fluoride (PVDF) ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm chemical combination of amino
Object is as aqueous phase monomers, using the multi-arm compound and o-phthaloyl chloride as the solute water phase that compound concentration is 0.2% respectively
Solution and a concentration of 0.05% oil-phase solution, the aqueous phase solvent be water, the oil phase solvent be normal heptane；It takes out and gathers inclined fluorine
Ethylene ultrafiltration membrane, is fixed, and infiltrates surface 60s, naturally dry with above-mentioned aqueous phase solution, then infiltrate base with above-mentioned oil-phase solution
Film surface 30s, after natural drying, 55 DEG C of heat treatment 150s obtain target product.
Embodiment 6
Using polyacrylonitrile ultrafiltration film as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm compound of amino
As aqueous phase monomers, using the multi-arm compound and o-phthaloyl chloride as the water that solute compound concentration is respectively 10% and 0.8%
Mutually and oil-phase solution, the aqueous phase solvent are water, and the oil phase solvent is n-hexane；Polyacrylonitrile ultrafiltration film is taken out, consolidate
It is fixed, surface 180s, naturally dry are infiltrated with above-mentioned aqueous phase solution, then membrane surface 120s is infiltrated with above-mentioned oil-phase solution, it is natural
After drying, 95 DEG C of heat treatment 300s.
Embodiment 7
Using poly (ether-sulfone) ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is that the multi-arm compound of amino is made
It is respectively 0.5% and 0.08% using the multi-arm compound and pyromellitic trimethylsilyl chloride as solute compound concentration for aqueous phase monomers
Water phase and oil-phase solution, the aqueous phase solvent are water, and the oil phase solvent is dimethylbenzene；Polysulfone ultrafiltration membrane is taken out, is fixed,
Surface 100s, naturally dry are infiltrated with above-mentioned aqueous phase solution, then membrane surface 50s, naturally dry are infiltrated with above-mentioned oil-phase solution
Afterwards, 45 DEG C of heat treatment 250s.
Embodiment 8
Using polysulfone ultrafiltration membrane as carrier basement membrane, using p-phenylenediamine as core, synthesis end is the multi-arm compound conduct of amino
Aqueous phase monomers, using the multi-arm compound and paraphthaloyl chloride as the solute aqueous phase solution that compound concentration is 5% respectively and dense
Degree is 0.5% oil-phase solution, and the aqueous phase solvent is water, and the oil phase solvent is normal heptane；Polysulfone ultrafiltration membrane is taken out, by it
It is fixed, surface 90s, naturally dry are infiltrated with above-mentioned aqueous phase solution, then membrane surface 60s is infiltrated with above-mentioned oil-phase solution, it is natural
After drying, 75 DEG C of heat treatment 60s obtain target product.
Technical solution in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage：
(1) it for the multi-arm compound of polyamino is aqueous phase monomers that the present invention, which use a kind of end, and polynary acyl chloride is oil phase
Monomer makes two-phase monomer fully be reacted on the surface of basement membrane and polyamide composite nanofiltration membrane is made using the method for interfacial polymerization, by
There is a large amount of hydrophilic amide group in the polyamide functional layer generated in basement membrane so that the composite membrane hydrophilicity of preparation is notable
It improves, while stain resistance also greatly improves.
(2) present invention synthesizes composite nanometer filtering film, experimentation operation by the method for interfacial polymerization on the basis of basement membrane
Simply, reaction condition is mild.
(3) material therefor abundance in the preparation process of NF membrane of the present invention, it is cheap, nontoxic, safe to use, and environment
It is friendly.
(4) compared with the ultrafiltration membrane before modification, contact angle is substantially reduced polyamide nanofiltration membrane produced by the present invention, hydrophilic
Property is improved, and antifouling property has also obtained apparent enhancing.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.Obviously, those skilled in the art can be to the present invention
Carry out various modification and variations without departing from the spirit and scope of the present invention.If in this way, these modifications and changes of the present invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to exist comprising these modification and variations
It is interior.
Claims (8)
1. a kind of preparation method of polyamide nanofiltration membrane, it is characterised in that：Include the following steps：
One carrier film is provided；
The first reaction monomers solution is provided to infiltrate the surface of the carrier film, the first reaction monomers solution includes：(i)
One reaction monomers, first reaction monomers are conjunction phenyl ring and amide group, the multi-arm compound that end is amino；(ii) it is used for
First solvent of first reaction monomers；
Second reaction monomers solution is provided, the surface of the carrier film infiltrated is contacted with the second reaction monomers solution, is obtained
To composite membrane, the second reaction monomers solution includes：(i) the second reaction monomers, second reaction monomers are polynary acyl chlorides
Class；(ii) it is used for the second solvent of second reaction monomers；
The composite membrane is heat-treated, the polyamide nanofiltration membrane is obtained；
Wherein, first solvent and second solvent form binary system；
The multi-arm compound, has the following structure formula：
First solvent includes water；Second solvent is selected from n-hexane, normal heptane and dimethylbenzene.
2. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：The carrier film is selected from poly-
The ultrafiltration membrane of sulfone, polyether sulfone, Kynoar and polyacrylonitrile.
3. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：The polynary acyl chloride is selected from
Paraphthaloyl chloride, o-phthaloyl chloride and pyromellitic trimethylsilyl chloride.
4. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：First reaction monomers are molten
Monomer molecule concentration (w/v) is 0.2%~10% in liquid.
5. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：Second reaction monomers are molten
A concentration of (w/v) 0.05%~0.8% of monomer molecule in liquid.
6. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：With the first reaction monomers solution
The processing time for infiltrating the surface of carrier film is 60~180s.
7. the preparation method of polyamide nanofiltration membrane according to claim 1 or 6, it is characterised in that：The carrier film infiltrated
Time for being contacted with the second reaction monomers solution of surface be 30~120s.
8. the preparation method of polyamide nanofiltration membrane according to claim 1, it is characterised in that：The temperature of the heat treatment is
35 DEG C~95 DEG C, the time is 30s~300s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637308.6A CN106076129B (en) | 2016-08-05 | 2016-08-05 | A kind of preparation method of polyamide nanofiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637308.6A CN106076129B (en) | 2016-08-05 | 2016-08-05 | A kind of preparation method of polyamide nanofiltration membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106076129A CN106076129A (en) | 2016-11-09 |
| CN106076129B true CN106076129B (en) | 2018-11-06 |
Family
ID=57454427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610637308.6A Active CN106076129B (en) | 2016-08-05 | 2016-08-05 | A kind of preparation method of polyamide nanofiltration membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106076129B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452691B (en) * | 2018-03-01 | 2020-01-14 | 广州中国科学院先进技术研究所 | Interfacial polymerization reaction device, and device and method for preparing hollow fiber composite nanofiltration membrane |
| CN114534515A (en) * | 2022-02-22 | 2022-05-27 | 中国科学院苏州纳米技术与纳米仿生研究所 | Novel polyamide reverse osmosis membrane and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698620A (en) * | 2012-06-12 | 2012-10-03 | 浙江大学 | Method for preparing reverse osmosis composite membrane by taking hyperbranched polymer as monomer |
-
2016
- 2016-08-05 CN CN201610637308.6A patent/CN106076129B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698620A (en) * | 2012-06-12 | 2012-10-03 | 浙江大学 | Method for preparing reverse osmosis composite membrane by taking hyperbranched polymer as monomer |
Non-Patent Citations (1)
| Title |
|---|
| 端氨基芳香族超支化聚酰胺胺的合成与应用;袁琴等;《武汉工程大学学报》;20160430;第38卷(第2期);163-167 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106076129A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | A free-standing calcium alginate/polyacrylamide hydrogel nanofiltration membrane with high anti-fouling performance: preparation and characterization | |
| CN105709619B (en) | A kind of positively charged nanofiltration membranes and preparation method thereof | |
| Lalia et al. | A review on membrane fabrication: Structure, properties and performance relationship | |
| Liao et al. | Highly dispersible polypyrrole nanospheres for advanced nanocomposite ultrafiltration membranes | |
| CN101890315B (en) | Carbon nano tube-polymer composite nanofiltration membrane and preparation method thereof | |
| Wang et al. | Preparation and properties of polyamide/titania composite nanofiltration membrane by interfacial polymerization | |
| CN105435653A (en) | Composite nano filtration membrane with high selectivity on removing divalent ions and preparation method thereof | |
| CN106076132A (en) | A kind of graphene oxide modified polyamide composite nanometer filtering film and preparation method thereof | |
| CN106999870A (en) | The molecule of polysulfonamide nanofiltration or reverse osmosis composite membrane process for assembly preparing layer by layer | |
| CN108409981A (en) | A kind of preparation method of modified metal organic frame and composite nanometer filtering film | |
| CN107349787B (en) | Preparation method of forward osmosis membrane added with aminated graphene quantum dots, prepared forward osmosis membrane and application of forward osmosis membrane | |
| CN105413464A (en) | Preparation method for graphene quantum dot added forward osmosis membrane, prepared forward osmosis membrane and application thereof | |
| CN1785488A (en) | Preparation method of polymer hollow fiber composite nano filtering membrane | |
| CN104607056A (en) | Hollow fiber compound nanofiltration membrane and preparation method thereof | |
| CN102794116A (en) | Mesoporous silicon dioxide sphere-polymer nano composite nano-filtration membrane and preparation method thereof | |
| CN109351190A (en) | It is a kind of to be crosslinked the compound solvent resistant nanofiltration membrane of fluorine-containing polyamide, preparation method and applications | |
| US20160136585A1 (en) | Composite Filtration Membranes from Conducting Polymer Nanoparticles and Conventional Polymers | |
| CN108187511A (en) | High flux and high retention ratio polyamide composite reverse osmosis membrane and preparation method thereof | |
| CN105148750A (en) | Method for modifying surface of polyamide composite film | |
| CN106076129B (en) | A kind of preparation method of polyamide nanofiltration membrane | |
| CN103316599A (en) | Preparation method of glycine betaine colloid nano particle modified chitosan nanofiltration membrane | |
| CN106474936A (en) | The preparation method of macromolecule modified freestanding carbon nanotube assembling film | |
| Wang et al. | Dynamic layer‐by‐layer self‐assembly of organic–inorganic composite hollow fiber membranes | |
| WO2015012869A1 (en) | Composite filtration membranes from conducting polymer nanoparticles and conventional polymers | |
| Su et al. | Preparation of thin-film composite membrane with Turing structure by PEO-assisted interfacial polymerization combined with choline chloride modification to improve permeability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210121 Address after: 518000 1009, No.1, langrong Road, Xinshi community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hongtu Technology Service Co.,Ltd. Address before: 430205 No. 1, Liu Fang Avenue, Jiangxia District, Wuhan, Hubei. Patentee before: WUHAN INSTITUTE OF TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210127 Address after: 410000 6 Lu Tian Lu, high tech Development Zone, Changsha, Hunan Patentee after: Hunan Qinsen High-tech New Material Co.,Ltd. Address before: 518000 1009, No.1, langrong Road, Xinshi community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Hongtu Technology Service Co.,Ltd. |
|
| TR01 | Transfer of patent right |