CN105344246A - Ultrafilter membrane and production method thereof - Google Patents
Ultrafilter membrane and production method thereof Download PDFInfo
- Publication number
- CN105344246A CN105344246A CN201510691978.1A CN201510691978A CN105344246A CN 105344246 A CN105344246 A CN 105344246A CN 201510691978 A CN201510691978 A CN 201510691978A CN 105344246 A CN105344246 A CN 105344246A
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- CN
- China
- Prior art keywords
- spsf
- parts
- milipore filter
- deionized water
- inorganic salts
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Classifications
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- 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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- 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
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/04—Hydrophobization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to an ultrafilter membrane and a preparation method thereof, which belong to the technical field of the ultrafilter membrane. The ultrafilter membrane comprises the following raw materials in parts by weight: 15-19 parts of sulfonated polysulfone, 85-95 parts of dimethyl formamide, 5-10 parts of isopropanol, 5-8 parts of inorganic salt, and 10000-12000 parts of deionized water. The ultrafilter membrane can effectively absorb a hydrophobic pollutant, enhances anti-pollution capability, and prolongs usage life.
Description
Technical field
The present invention relates to a kind of filter membrane and preparation method thereof, more particularly, the present invention relates to a kind of milipore filter and preparation method thereof, belong to ultrafiltration membrane technique field.
Background technology
Along with progress and the development of science and technology, polymer film has been widely used in the fields such as haemodialysis, sewage purification, desalinization and gas separaion.The stuctures and properties of film is its principal element further developed of restriction, and the stuctures and properties of polymer film is subject to the control of preparation condition.The preparation method of polymer film mainly contains sintering process, pulling method, track etch method and phase inversion.And phase inversion has become the main flow preparation method preparing polymer film.So-called phase inversion film, prepare the homogeneous polymer solution of definite composition exactly, changed the thermodynamic state of solution by certain physical method, make it be separated from the polymer solution of homogeneous phase, be finally converted into the gel structure of a three-dimensional macromolecular network type.Inversion of phases masking method is different according to the physical method changing solution thermodynamics state, can be divided into following several: solvent evaporation phase inversion, thermal induction phase inversion, vapor deposition method.
Membrane material is as the core of membrane separation technique, its character can affect the separation permeability of film and physicochemical stability, therefore the selection of membrane material is the first-selected problem of preparative separation film, polysulfones is high temperature resistant because having, good mechanical property, advantages such as corrosion resistance is strong and be widely used in the preparation of milipore filter.But because itself hydrophily is not strong, hydrophobic solutes very easily blocks film surface, blocking fenestra, cause fouling membrane, cause the performance of film significantly to decline, reduce service life, therefore need to use hydrophilic surfactant active, reduce the interfacial tension of water and other hydrophobic substances, thus reduce the absorption of hydrophobic substance on face.
Summary of the invention
The present invention is intended to the problem solving existing membrane material, provides a kind of milipore filter, and this milipore filter effectively can reduce the absorption to hydrophobic contaminant, enhances contamination resistance, extends service life.
To achieve these goals, its concrete technical scheme is as follows:
A kind of milipore filter, is characterized in that: comprise the following raw material according to weight parts:
SPSF 15-19 part
Dimethyl formamide 85-95 part
Isopropyl alcohol 5-10 part
Inorganic salts 5-8 part
Deionized water 10000-12000 part.
Preferably, a kind of milipore filter, is characterized in that: comprise the following raw material according to weight parts:
SPSF 16-18 part
Dimethyl formamide 88-92 part
Isopropyl alcohol 7-9 part
Inorganic salts 6-8 part
Deionized water 11000-11500 part.
The present invention is preferred, and described inorganic salts are NaCl, KCl or CaCl.
A preparation method for milipore filter, is characterized in that: comprise following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 60-80 DEG C of water-bath 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
After E, 1-3 hour, remove solid film, wash and obtain milipore filter.
The Advantageous Effects that the present invention brings:
While the hydrophily that the present invention improves polysulfones membrane material and heat resistance, effectively can also improve the selection stalling characteristic of functional membrane, permeation flux and antifouling property, the sulfonating reaction of polysulfones membrane material is the electrophilic substitution reaction on a kind of phenyl ring, in sulfonating reaction, key introduces sulfonic group, this is a kind of hydrophilic functional group, and chemical formula is-SO
3h, it forms sulphonic acids organic matter when directly can be connected with the carbon atom of hydroxyl, acidity can be increased after introducing sulfonic group in organic molecule, again because sulfonic group is hydrophilic radical, therefore can effectively increase organic water-soluble, thus effectively reduce film to the absorption of hydrophobic contaminant, enhance the contamination resistance of film, extend the service life of film.Milipore filter property detecting device measures rejection (94.25%) and the water flux (89.20L/m of the bovine serum albumin(BSA) of polysulphone super-filter membrane
2.h).
Detailed description of the invention
embodiment 1
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 15 parts
Dimethyl formamide 85 parts
Isopropyl alcohol 5 parts
5 parts, inorganic salts
Deionized water 10000 parts.
embodiment 2
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 19 parts
Dimethyl formamide 95 parts
Isopropyl alcohol 10 parts
8 parts, inorganic salts
Deionized water 12000 parts.
embodiment 3
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 17 parts
Dimethyl formamide 90 parts
Isopropyl alcohol 7.5 parts
6.5 parts, inorganic salts
Deionized water 11000 parts.
embodiment 4
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 16 parts
Dimethyl formamide 88 parts
Isopropyl alcohol 9 parts
7.5 parts, inorganic salts
Deionized water 11200 parts.
embodiment 5
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 16 parts
Dimethyl formamide 88 parts
Isopropyl alcohol 7 parts
6 parts, inorganic salts
Deionized water 11000 parts.
embodiment 6
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 18 parts
Dimethyl formamide 92 parts
Isopropyl alcohol 9 parts
8 parts, inorganic salts
Deionized water 11500 parts.
embodiment 7
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 17 parts
Dimethyl formamide 90 parts
Isopropyl alcohol 8 parts
7 parts, inorganic salts
Deionized water 11250.
embodiment 8
A kind of milipore filter, comprises the following raw material according to weight parts:
SPSF 16.58 parts
Dimethyl formamide 89 parts
Isopropyl alcohol 8.5 parts
7.5 parts, inorganic salts
Deionized water 11100 parts.
embodiment 9
A preparation method for milipore filter, comprises following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 60 DEG C of water-baths 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
E, after 1 hour, remove solid film, wash and obtain milipore filter.
embodiment 10
A preparation method for milipore filter, comprises following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 80 DEG C of water-baths 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
E, after 3 hours, remove solid film, wash and obtain milipore filter.
embodiment 11
A preparation method for milipore filter, comprises following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 70 DEG C of water-baths 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
E, after 2 hours, remove solid film, wash and obtain milipore filter.
embodiment 12
A preparation method for milipore filter, comprises following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 65 DEG C of water-baths 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
E, after 2.5 hours, remove solid film, wash and obtain milipore filter.
Claims (4)
1. a milipore filter, is characterized in that: comprise the following raw material according to weight parts:
SPSF 15-19 part
Dimethyl formamide 85-95 part
Isopropyl alcohol 5-10 part
Inorganic salts 5-8 part
Deionized water 10000-12000 part.
2. a kind of milipore filter according to claim 1, is characterized in that: comprise the following raw material according to weight parts:
SPSF 16-18 part
Dimethyl formamide 88-92 part
Isopropyl alcohol 7-9 part
Inorganic salts 6-8 part
Deionized water 11000-11500 part.
3. a kind of milipore filter according to claim 1 and 2, is characterized in that: described inorganic salts are NaCl, KCl or CaCl.
4. the preparation method of a kind of milipore filter according to claim 1, is characterized in that: comprise following processing step:
A, SPSF to be placed in tool plug port grinding bottle, to add dimethyl formamide;
B, described tool plug port grinding bottle is placed in 60-80 DEG C of water-bath 24 hours, SPSF is fully dissolved; SPSF lysate is filtered after being cooled to room temperature, for subsequent use;
C, in container, add deionized water, isopropyl alcohol and inorganic salts, fully miscible; One cleaned glass plate level is placed on platform;
D, by the SPSF lysate for preparing on a glass, use glass bar knifing; Entering in deionized water by scraping the SPSF liquid film made together with glass plate rapidly, making SPSF liquid film inversion of phases become solid film;
After E, 1-3 hour, remove solid film, wash and obtain milipore filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691978.1A CN105344246A (en) | 2015-10-23 | 2015-10-23 | Ultrafilter membrane and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691978.1A CN105344246A (en) | 2015-10-23 | 2015-10-23 | Ultrafilter membrane and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105344246A true CN105344246A (en) | 2016-02-24 |
Family
ID=55320388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510691978.1A Pending CN105344246A (en) | 2015-10-23 | 2015-10-23 | Ultrafilter membrane and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105344246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158976A (en) * | 2017-06-27 | 2017-09-15 | 彭雅龙 | A kind of milipore filter handled for the Organic substance in water that gives up and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249504A (en) * | 1985-04-30 | 1986-11-06 | Nok Corp | Ultrafilter membrane |
| CN1683059A (en) * | 2005-03-03 | 2005-10-19 | 上海一鸣过滤技术有限公司 | Reinforced hollow fiber super filter film and its preparing method |
| CN101979132A (en) * | 2010-11-05 | 2011-02-23 | 天津森诺过滤技术有限公司 | Method for preparing asymmetric nanofiltration membrane by blending polyether sulfone and sulfonated polysulfone high polymers |
| CN102068914A (en) * | 2010-12-13 | 2011-05-25 | 大连欧科膜技术工程有限公司 | Preparation method of gas separation composite film |
| JP2012110889A (en) * | 2010-11-05 | 2012-06-14 | Nitto Denko Corp | Method for manufacturing sheet-like separation membrane |
-
2015
- 2015-10-23 CN CN201510691978.1A patent/CN105344246A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249504A (en) * | 1985-04-30 | 1986-11-06 | Nok Corp | Ultrafilter membrane |
| CN1683059A (en) * | 2005-03-03 | 2005-10-19 | 上海一鸣过滤技术有限公司 | Reinforced hollow fiber super filter film and its preparing method |
| CN101979132A (en) * | 2010-11-05 | 2011-02-23 | 天津森诺过滤技术有限公司 | Method for preparing asymmetric nanofiltration membrane by blending polyether sulfone and sulfonated polysulfone high polymers |
| JP2012110889A (en) * | 2010-11-05 | 2012-06-14 | Nitto Denko Corp | Method for manufacturing sheet-like separation membrane |
| CN102068914A (en) * | 2010-12-13 | 2011-05-25 | 大连欧科膜技术工程有限公司 | Preparation method of gas separation composite film |
Non-Patent Citations (1)
| Title |
|---|
| 李发永等: "磺化聚砜超滤膜处理含油污水的实验", 《水处理技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158976A (en) * | 2017-06-27 | 2017-09-15 | 彭雅龙 | A kind of milipore filter handled for the Organic substance in water that gives up and preparation method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |