CN108854549A - A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane - Google Patents
A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane Download PDFInfo
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- CN108854549A CN108854549A CN201810684658.7A CN201810684658A CN108854549A CN 108854549 A CN108854549 A CN 108854549A CN 201810684658 A CN201810684658 A CN 201810684658A CN 108854549 A CN108854549 A CN 108854549A
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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
-
- 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 preparation methods for weaving tube enhancement type hollow fiber ultrafiltration membrane, the present invention is in the preparation process of ultrafiltration membrane, based on polyvinyl chloride, and the mode of pore former, heat stabilizer, organic solvent is added, and using hydrophilic polymer in liquid phases separation, the characteristics of being readily migrate into film surface, hydrophilic layer is formed on the surface of film, so that hydrone is adsorbed on film surface, pollutant and film surface are kept apart, enhances the resistance tocrocking of ultrafiltration membrane.
Description
Technical field
The present invention relates to ultrafiltration membranes to research and develop processing technique field, specially a kind of braiding tube enhancement type hollow fiber ultrafiltration membrane
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, the sixties just
Realize the industrialized production of ultrafiltration apparatus.Current ultrafiltration membrane in use for some time, due to the solute in raw water due to
Electrostatic or chemical action can be adsorbed on the surface of film, cause the blocking of fenestra, cause the decline of membrane flux, influence filter effect,
Therefore the resistance tocrocking for improving film just becomes problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods for weaving tube enhancement type hollow fiber ultrafiltration membrane, on solving
State the problem of proposing in background technique.
To achieve the above object, the present invention provides the following technical solutions：
A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane, includes the following steps：
100-130 parts by weight dehydrated alcohol, 120-130 parts by weight N- dimethyl acetamide are put into S1, reaction kettle, are stirred
After uniformly, 15-20 parts by weight butyl titanate, 30-40 parts by weight glacial acetic acid, 10-13 parts by weight concentrated hydrochloric acid are put into solution,
It is heated up to 50-60 DEG C, while ultrasonic agitation, sequentially adds 14-20 parts by weight pore former, 10-15 parts by weight heat stabilizer, obtain
To homogeneous phase solution；
S2,30-34 parts by weight polyether sulfone, 80-100 weight account polyethylene, the poly- ammonia of 14-16 parts by weight are added into homogeneous phase solution
Ester, after hybrid reaction 3-5 hours, cooled to room temperature then carries out vacuum defoamation processing, obtains casting solution；
S3, using non-woven fabrics as supporting layer, casting solution is poured on non-woven fabrics, casting solution is carried out using scraper to scrape film process, will
Obtained film immerses in deionized water, stands solidification 12-16 hours, finally places and dry in a vacuum drying oven.
As a further solution of the present invention, pore former described in step S1 is that polyvinylpyrrolidone and polyethylene glycol are mixed
Bonding solvent, the heat stabilizer are alkyl phenol barium, barium laurate, benzoic acid mixture.
As a further solution of the present invention, dehydrated alcohol described in step S1 is 100 parts by weight, the N- dimethyl second
Amide is 120 parts by weight, and the butyl titanate is 15 parts by weight, and the glacial acetic acid is 30 parts by weight, and the concentrated hydrochloric acid is 10
Parts by weight, the pore former are 14 parts by weight, and the heat stabilizer is 10 parts by weight, and polyether sulfone described in step S2 is 30 weight
Part, the polyethylene is 80 parts by weight, and the polyurethane is 14 parts by weight.
As a further solution of the present invention, warm temperature described in step S1 is 50 DEG C, and mixing described in step S2 is anti-
It is 3 hours between seasonable, curing time described in step S3 is 12 hours.
As a further solution of the present invention, dehydrated alcohol described in step S1 is 110 parts by weight, the N- dimethyl second
Amide is 125 parts by weight, and the butyl titanate is 17 parts by weight, and the glacial acetic acid is 35 parts by weight, and the concentrated hydrochloric acid is 11
Parts by weight, the pore former are 16 parts by weight, and the heat stabilizer is 13 parts by weight, and polyether sulfone described in step S2 is 32 weight
Part, the polyethylene is 90 parts by weight, and the polyurethane is 15 parts by weight.
As a further solution of the present invention, warm temperature described in step S1 is 55 DEG C, and mixing described in step S2 is anti-
It is 4 hours between seasonable, curing time described in step S3 is 13 hours.
As a further solution of the present invention, dehydrated alcohol described in step S1 is 130 parts by weight, the N- dimethyl second
Amide is 130 parts by weight, and the butyl titanate is 20 parts by weight, and the glacial acetic acid is 40 parts by weight, and the concentrated hydrochloric acid is 13
Parts by weight, the pore former are 20 parts by weight, and the heat stabilizer is 15 parts by weight, and polyether sulfone described in step S2 is 34 weight
Part, the polyethylene is 100 parts by weight, and the polyurethane is 16 parts by weight.
As a further solution of the present invention, warm temperature described in step S1 is 60 DEG C, and mixing described in step S2 is anti-
It is 5 hours between seasonable, curing time described in step S3 is 16 hours.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention passes through polychlorostyrene in the preparation process of ultrafiltration membrane
Based on ethylene, and the mode of pore former, heat stabilizer, organic solvent is added, using hydrophilic polymer in liquid phases separation
In, the characteristics of being readily migrate into film surface, forms hydrophilic layer on the surface of film, hydrone is enable to be adsorbed on film surface, will be dirty
Dye object is kept apart with film surface, enhances the resistance tocrocking of ultrafiltration membrane.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane, includes the following steps：
100-130 parts by weight dehydrated alcohol, 120-130 parts by weight N- dimethyl acetamide are put into S1, reaction kettle, are stirred
After uniformly, 15-20 parts by weight butyl titanate, 30-40 parts by weight glacial acetic acid, 10-13 parts by weight concentrated hydrochloric acid are put into solution,
It is heated up to 50-60 DEG C, while ultrasonic agitation, sequentially adds 14-20 parts by weight pore former, 10-15 parts by weight heat stabilizer, obtain
To homogeneous phase solution；
S2,30-34 parts by weight polyether sulfone, 80-100 weight account polyethylene, the poly- ammonia of 14-16 parts by weight are added into homogeneous phase solution
Ester, after hybrid reaction 3-5 hours, cooled to room temperature then carries out vacuum defoamation processing, obtains casting solution；
S3, using non-woven fabrics as supporting layer, casting solution is poured on non-woven fabrics, casting solution is carried out using scraper to scrape film process, will
Obtained film immerses in deionized water, stands solidification 12-16 hours, finally places and dry in a vacuum drying oven.
Pore former described in step S1 is polyvinylpyrrolidone and polyethylene glycol mixed solvent, and the heat stabilizer is alkane
Base phenol barium, barium laurate, benzoic acid mixture.
Dehydrated alcohol described in step S1 is 100 parts by weight, and the N- dimethyl acetamide is 120 parts by weight, the titanium
Sour four butyl esters are 15 parts by weight, and the glacial acetic acid is 30 parts by weight, and the concentrated hydrochloric acid is 10 parts by weight, and the pore former is 14 weights
Part is measured, the heat stabilizer is 10 parts by weight, and polyether sulfone described in step S2 is 30 parts by weight, and the polyethylene is 80 weight
Part, the polyurethane is 14 parts by weight.
Warm temperature described in step S1 is 50 DEG C, and mixed reaction time described in step S2 is 3 hours, institute in step S3
Stating curing time is 12 hours.
Embodiment 2
A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane, includes the following steps：
100-130 parts by weight dehydrated alcohol, 120-130 parts by weight N- dimethyl acetamide are put into S1, reaction kettle, are stirred
After uniformly, 15-20 parts by weight butyl titanate, 30-40 parts by weight glacial acetic acid, 10-13 parts by weight concentrated hydrochloric acid are put into solution,
It is heated up to 50-60 DEG C, while ultrasonic agitation, sequentially adds 14-20 parts by weight pore former, 10-15 parts by weight heat stabilizer, obtain
To homogeneous phase solution；
S2,30-34 parts by weight polyether sulfone, 80-100 weight account polyethylene, the poly- ammonia of 14-16 parts by weight are added into homogeneous phase solution
Ester, after hybrid reaction 3-5 hours, cooled to room temperature then carries out vacuum defoamation processing, obtains casting solution；
S3, using non-woven fabrics as supporting layer, casting solution is poured on non-woven fabrics, casting solution is carried out using scraper to scrape film process, will
Obtained film immerses in deionized water, stands solidification 12-16 hours, finally places and dry in a vacuum drying oven.
Pore former described in step S1 is polyvinylpyrrolidone and polyethylene glycol mixed solvent, and the heat stabilizer is alkane
Base phenol barium, barium laurate, benzoic acid mixture.
Dehydrated alcohol described in step S1 is 110 parts by weight, and the N- dimethyl acetamide is 125 parts by weight, the titanium
Sour four butyl esters are 17 parts by weight, and the glacial acetic acid is 35 parts by weight, and the concentrated hydrochloric acid is 11 parts by weight, and the pore former is 16 weights
Part is measured, the heat stabilizer is 13 parts by weight, and polyether sulfone described in step S2 is 32 parts by weight, and the polyethylene is 90 weight
Part, the polyurethane is 15 parts by weight.
Warm temperature described in step S1 is 55 DEG C, and mixed reaction time described in step S2 is 4 hours, institute in step S3
Stating curing time is 13 hours.
Embodiment 3
A kind of preparation method weaving tube enhancement type hollow fiber ultrafiltration membrane, includes the following steps：
100-130 parts by weight dehydrated alcohol, 120-130 parts by weight N- dimethyl acetamide are put into S1, reaction kettle, are stirred
After uniformly, 15-20 parts by weight butyl titanate, 30-40 parts by weight glacial acetic acid, 10-13 parts by weight concentrated hydrochloric acid are put into solution,
It is heated up to 50-60 DEG C, while ultrasonic agitation, sequentially adds 14-20 parts by weight pore former, 10-15 parts by weight heat stabilizer, obtain
To homogeneous phase solution；
S2,30-34 parts by weight polyether sulfone, 80-100 weight account polyethylene, the poly- ammonia of 14-16 parts by weight are added into homogeneous phase solution
Ester, after hybrid reaction 3-5 hours, cooled to room temperature then carries out vacuum defoamation processing, obtains casting solution；
S3, using non-woven fabrics as supporting layer, casting solution is poured on non-woven fabrics, casting solution is carried out using scraper to scrape film process, will
Obtained film immerses in deionized water, stands solidification 12-16 hours, finally places and dry in a vacuum drying oven.
Pore former described in step S1 is polyvinylpyrrolidone and polyethylene glycol mixed solvent, and the heat stabilizer is alkane
Base phenol barium, barium laurate, benzoic acid mixture.
Dehydrated alcohol described in step S1 is 130 parts by weight, and the N- dimethyl acetamide is 130 parts by weight, the titanium
Sour four butyl esters are 20 parts by weight, and the glacial acetic acid is 40 parts by weight, and the concentrated hydrochloric acid is 13 parts by weight, and the pore former is 20 weights
Part is measured, the heat stabilizer is 15 parts by weight, and polyether sulfone described in step S2 is 34 parts by weight, and the polyethylene is 100 weight
Part, the polyurethane is 16 parts by weight.
Warm temperature described in step S1 is 60 DEG C, and mixed reaction time described in step S2 is 5 hours, institute in step S3
Stating curing time is 16 hours.
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.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane, which is characterized in that include the following steps：
100-130 parts by weight dehydrated alcohol, 120-130 parts by weight N- dimethyl acetamide are put into S1, reaction kettle, are stirred
After uniformly, 15-20 parts by weight butyl titanate, 30-40 parts by weight glacial acetic acid, 10-13 parts by weight concentrated hydrochloric acid are put into solution,
It is heated up to 50-60 DEG C, while ultrasonic agitation, sequentially adds 14-20 parts by weight pore former, 10-15 parts by weight heat stabilizer, obtain
To homogeneous phase solution；
S2,30-34 parts by weight polyether sulfone, 80-100 weight account polyethylene, the poly- ammonia of 14-16 parts by weight are added into homogeneous phase solution
Ester, after hybrid reaction 3-5 hours, cooled to room temperature then carries out vacuum defoamation processing, obtains casting solution；
S3, using non-woven fabrics as supporting layer, casting solution is poured on non-woven fabrics, casting solution is carried out using scraper to scrape film process, will
Obtained film immerses in deionized water, stands solidification 12-16 hours, finally places and dry in a vacuum drying oven.
2. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：
Pore former described in step S1 be polyvinylpyrrolidone and polyethylene glycol mixed solvent, the heat stabilizer be alkyl phenol barium,
Barium laurate, benzoic acid mixture.
3. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：
Dehydrated alcohol described in step S1 is 100 parts by weight, and the N- dimethyl acetamide is 120 parts by weight, the butyl titanate
For 15 parts by weight, the glacial acetic acid is 30 parts by weight, and the concentrated hydrochloric acid is 10 parts by weight, and the pore former is 14 parts by weight, institute
Stating heat stabilizer is 10 parts by weight, and polyether sulfone described in step S2 is 30 parts by weight, and the polyethylene is 80 parts by weight, described poly-
Urethane is 14 parts by weight.
4. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 3, it is characterised in that：
Warm temperature described in step S1 is 50 DEG C, and mixed reaction time described in step S2 is 3 hours, when solidifying described in step S3
Between be 12 hours.
5. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：
Dehydrated alcohol described in step S1 is 110 parts by weight, and the N- dimethyl acetamide is 125 parts by weight, the butyl titanate
For 17 parts by weight, the glacial acetic acid is 35 parts by weight, and the concentrated hydrochloric acid is 11 parts by weight, and the pore former is 16 parts by weight, institute
Stating heat stabilizer is 13 parts by weight, and polyether sulfone described in step S2 is 32 parts by weight, and the polyethylene is 90 parts by weight, described poly-
Urethane is 15 parts by weight.
6. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 5, it is characterised in that：
Warm temperature described in step S1 is 55 DEG C, and mixed reaction time described in step S2 is 4 hours, when solidifying described in step S3
Between be 13 hours.
7. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 1, it is characterised in that：
Dehydrated alcohol described in step S1 is 130 parts by weight, and the N- dimethyl acetamide is 130 parts by weight, the butyl titanate
For 20 parts by weight, the glacial acetic acid is 40 parts by weight, and the concentrated hydrochloric acid is 13 parts by weight, and the pore former is 20 parts by weight, institute
Stating heat stabilizer is 15 parts by weight, and polyether sulfone described in step S2 is 34 parts by weight, and the polyethylene is 100 parts by weight, described
Polyurethane is 16 parts by weight.
8. a kind of preparation method for weaving tube enhancement type hollow fiber ultrafiltration membrane according to claim 7, it is characterised in that：
Warm temperature described in step S1 is 60 DEG C, and mixed reaction time described in step S2 is 5 hours, when solidifying described in step S3
Between be 16 hours.
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|---|---|---|---|---|
| CN1579600A (en) * | 2003-08-06 | 2005-02-16 | 海南立昇净水科技实业有限公司 | PVC hollow filtration membrane and its preparing method |
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2018
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Application publication date: 20181123 |