CN108854578A - A kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube - Google Patents
A kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube Download PDFInfo
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- CN108854578A CN108854578A CN201811078531.7A CN201811078531A CN108854578A CN 108854578 A CN108854578 A CN 108854578A CN 201811078531 A CN201811078531 A CN 201811078531A CN 108854578 A CN108854578 A CN 108854578A
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- preparation
- woven cloth
- aromatic polyamides
- support tube
- membrane
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- 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
- B01D69/04—Tubular membranes
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- 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
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- 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/105—Support pretreatment
-
- 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
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube, the preparation including basement membrane, basement membrane cleaning device, water phase infiltration apparatus, interface polymerization reaction device, after-treatment device and PLC electric-control system.The preparation of the basement membrane includes the blade coating of plate basement membrane, the cutting of aromatic polyamides non-woven cloth and rolling for support tube；The water phase infiltration apparatus includes water phase container, water conveying pipeline and water conveying pump, is furnished with liquidometer on water phase container, and water phase container passes through piping connection water phase grug feeding jar, is furnished with solenoid valve on transfer pipeline；The interface polymerization reaction device is furnished with organic compatible device, organic phase transfer pipeline and organic phase delivery pump, is furnished with liquidometer on organic phase container, connects organic addition medicinal cupping by organic phase transfer pipeline, is furnished with solenoid valve on transfer pipeline；The after-treatment device includes water bath heating device and temperature controller.A kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube of the present invention is highly integrated, simple process.The tubular nanofiltration membrane product strength height of production, high temperature resistant, acid-fast alkali-proof, function admirable.
Description
Technical field
The invention belongs to tubular type field of membrane preparation, more particularly, to a kind of tubular type of aromatic polyamides non-woven cloth support tube
The preparation method of film.
Technical background
Environmental Protection in China industry is still at an early stage, and increase in investment, mechanism improvement, model innovation will continue to drive environmentally friendly city
Field constantly growth and upgrading.Newly《Environmental law》Promulgation environmental improvement is promoted to new height, environmental services model innovation pushes away
Dynamic environmental protection industry moves to maturity.The clearly dirty smelly water harnessing of ten, water belongs to local government's feedback on performance index, and arduous task, this will
Push the extensive use of water treatment by membrane.
In film product scope, China has successively had developed a series of film product preparation methods, but the preparation work of tubular membrane
Skill falls behind relatively, and the present invention can further improve the seriation type of China's tubular membrane product, is China's tubular membrane
Research and development, production and application provide help, push tubular membrane in hc effluent, oily waste water, landfill leachate treatment, feed separation
Etc. relevant industries large-scale application, while internal membrane product quality and manufacturing technology can be improved.
Aromatic polyamides non-woven cloth is a kind of high-tech new material, has superhigh intensity, low deformation；Permanent high temperature resistant,
Without brittle trend under low temperature, and thermal expansion coefficient slightly negative value.It can be used 10 years or more at 180 DEG C, and service life is higher than
Other non-woven cloths of water process.1 000h is placed under 200 DEG C of xeothermic states, mechanical strength still keeps original 75%；?
1000h is placed under 120 DEG C of humid tropical conditions, mechanical strength still keeps original 60% or more；Resistance to most of highly concentrated inorganic acids,
In the range of pH=2~10, intensity is almost injury-free, sufficiently stable to most of chemical reagent and organic solvent.Fragrance
Polyamide non-woven cloth compact structure, smooth surface, flexibility is good, has good anti-tensile and tear resistance, dimensionally stable
Property it is good, intensity is high, is a kind of superior performance tubular membrane support body material.
Summary of the invention
In view of this, the present invention is directed to propose a kind of preparation side of the tubular membrane of aromatic polyamides non-woven cloth support tube
Method, highly integrated, simple process, the tubular nanofiltration membrane product strength height of production, high temperature resistant, acid-fast alkali-proof, function admirable.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube, the preparation including basement membrane, basement membrane are clear
Cleaning device, water phase infiltration apparatus, interface polymerization reaction device, after-treatment device and PLC electric-control system.The preparation packet of the basement membrane
Include the blade coating of plate basement membrane, the cutting of aromatic polyamides non-woven cloth and rolling for support tube.
Further, the cutting width of the aromatic polyamides non-woven cloth is 10-30mm.
Further, the coiling process of the support tube is to be spirally wound on the small item of the non-woven cloth for having cut same widths
On center-pole, passes through dispenser dispensing in winding, be bonded at the edge junction of cloth, width 1-2mm makes aromatic polyamides
Non-woven cloth rolls into tubular support.
Further, the water phase infiltration apparatus includes water phase container, water conveying pipeline and water conveying pump, water phase container
By piping connection water phase grug feeding jar, it is furnished with liquidometer on water phase container, is furnished with solenoid valve on transfer pipeline, controls water conveying
The start and stop of pump.
Further, the interface polymerization reaction device is equipped with organic compatible device, organic phase transfer pipeline and organic phase conveying
Pump connects organic addition medicinal cupping by organic phase transfer pipeline, is furnished with liquidometer on organic phase container, is furnished with electricity on transfer pipeline
Magnet valve controls the start and stop of organic phase delivery pump.
Further, the after-treatment device includes water bath heating device and temperature controller, controls reaction temperature appropriate, is promoted
The increase of the extent of reaction.
Further, pipeline, delivery pump, the flowmeter used in the entire preparation process are resistant material, are owned
Switch is set as being spaced apart.
Further, the preparation method may be implemented by changing different process conditions, such as interfacial polymerization time, temperature
Degree, finishing time and temperature etc. control the performance of tubular membrane, to produce the seriation tubular membrane product of different performance.
The beneficial effects of the present invention are：A kind of preparation side of the tubular membrane of aromatic polyamides non-woven cloth support tube is provided
Method, this method is highly integrated, simple process, and the nanofiltration membrane flux of easy to operate, high production efficiency, production is big, and performance is stablized, can
According to the tandem product for adjusting different process conditions production tubular nanofiltration membranes.
The present invention uses compact structure, and surface is smooth, and high temperature resistant, high intensity, low deformation, corrosion resistant aromatic polyamides are non-
Woven cloths roll tubular type film support, and the tubular membrane prepared can be used for high pressure, high temperature, soda acid, treatment of Organic Wastewater field；
Aromatic polyamides non-woven cloth non-melt, using special spiral winding dispensing technique for sticking by non-woven yardage roll
Tubulose is made, bonding is uniformly secured, it is ensured that the intensity of pipe.
Liquidometer is provided on water phase infiltration apparatus and interface polymerization reaction device, on pipeline equipped with solenoid valve, can control
The start and stop and monitoring liquid level variation of delivery pump processed.
Aftertreatment technology can promote the further perfect of interface polymerization reaction, can greatly reduce the defect of polymeric membrane, into
The stability of one step guarantee film properties of product.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is a kind of basement membrane preparation of the tubular membrane of aromatic polyamides non-woven cloth support tube described in the embodiment of the present invention
Process schematic representation.
Fig. 2 is a kind of composite membrane system of the tubular membrane of aromatic polyamides non-woven cloth support tube described in the embodiment of the present invention
Standby process schematic representation.
Description of symbols：
The plate membrane of 11- polyamide non-woven cloth support；12- plate membrane cuts into small item；13- center-pole；14- dispensing
Machine.21- basement membrane cleaning device；22- water phase infiltration apparatus；23- interface polymerization reaction device；24- after-treatment device.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Such as Fig. 1, a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube successively carries out the system of basement membrane
Standby, the cleaning of basement membrane, water phase infiltrates basement membrane, carries out interface polymerization reaction device, post-processes to composite membrane.The basement membrane
Preparation first carries out the blade coating 11 of plate basement membrane on aromatic polyamides non-woven cloth, and cloth is then cut into small item 12, finally will
The small item of cloth rolls bonding into tubulose 13,14.The cutting width of the aromatic polyamides non-woven cloth is 10-30mm, and when pipe crimping can
To be single layer, bilayer or three layers, the width of same root canal institute fabric dividing must be consistent, and be ensured when rolling double-deck or three-layer pipe
Cloth edge can be accurately overlapped；
The coiling process of the support tube is that the small item of the non-woven cloth for having cut same widths is spirally wound on center-pole
Upper 13, pass through 14 dispensing of dispenser in winding, is bonded at the edge junction of cloth, width 1-2mm makes aromatic polyamides are non-to knit
It makes cloth and rolls into tubular support.Winding process and dispensing process require at the uniform velocity to carry out, and speed will match, to guarantee glue
Amount is uniform；
The water phase infiltration apparatus 22 and interface polymerization reaction device 23 are respectively provided with liquid container, transfer pipeline and conveying
Pump.Liquid container passes through piping connection grug feeding jar, and liquidometer is provided on liquid container, is furnished with solenoid valve, liquid on transfer pipeline
Position meter monitoring tank fill level, it is ensured that the holding of liquid level comes into full contact with so that tubular membrane is totally submerged, and sufficiently reacts；
The after-treatment device 24 includes water bath heating device and temperature controller, when controlling reaction temperature appropriate and reaction
Between, keep polymerization reaction more abundant, reduce the defect of polymeric membrane, is further ensured that the stability of film properties of product；
Pipeline, delivery pump, the flowmeter used in the entire preparation process are resistant material, all switch settings
To be spaced apart, produce to ensure safety.
Production process：The blade coating 11 that plate basement membrane is carried out first on aromatic polyamides non-woven cloth, then cuts cloth
It is the small item 12 of 10-30mm at width, the small item of non-woven cloth is at the uniform velocity spirally wound on center-pole 13, passes through dispenser in winding
14 dispensings, are bonded at the edge junction of cloth, and width 1-2mm makes aromatic polyamides non-woven cloth roll into tubular support, base
Film preparation is completed.Basement membrane is sufficiently cleaned in basement membrane cleaning device 21, to remove film surface magazine, is avoided because of basement membrane table
Face magazine makes polymerization reaction generate defect；Then it is entered in water phase infiltration apparatus 22, opens water conveying pump, make it sufficiently
Soak film；Tubular membrane is put into interface polymerization reaction device 23 again, organic phase delivery pump is opened, membrane tube is totally submerged, in basement membrane
Interface polymerization reaction occurs for surface；Tubular membrane is put into post-processing heating device 24 again, controls reaction temperature appropriate with temperature controller
Degree and reaction time, carry out polymerization reaction sufficiently.
The foregoing is merely illustrative of the preferred embodiments of the present invention, be not intended to limit the invention spirit and principle it
Interior, any modification, equivalent replacement, improvement and so on should be included within the scope of the invention.
Claims (9)
1. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube, it is characterised in that：System including basement membrane
It is standby, basement membrane cleaning device, water phase infiltration apparatus, interface polymerization reaction device, after-treatment device and PLC electric-control system.The base
The preparation of film includes the blade coating of plate basement membrane, the cutting of aromatic polyamides non-woven cloth and rolling for support tube.
2. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is：The plate membrane material can be the polymeric membranes such as polysulfones, polyether sulfone, Kynoar.
3. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is：The cutting width of the aromatic polyamides non-woven cloth is 10-30mm.
4. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is：The coiling process of the support tube is that the small item of the non-woven cloth for having cut same widths is spirally wound on center-pole
On, pass through dispenser dispensing in winding, is bonded at the edge junction of cloth, width 1-2mm makes aromatic polyamides non-woven cloth
Roll into tubular support.
5. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 3, special
Sign is：The water phase infiltration apparatus includes that water phase container, water conveying pipeline and water conveying pump, water phase container pass through pipeline
Water phase grug feeding jar is connected, is furnished with liquidometer on water phase container, is furnished with solenoid valve on transfer pipeline, control water conveying pump opens
Stop.
6. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 3, special
Sign is：The interface polymerization reaction device is furnished with organic compatible device, organic phase transfer pipeline and organic phase delivery pump, by having
Machine phase transfer pipeline connects organic addition medicinal cupping, is furnished with liquidometer on organic phase container, is furnished with solenoid valve, control on transfer pipeline
The start and stop of organic phase delivery pump.
7. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is：The after-treatment device includes water bath heating device and temperature controller, controls reaction temperature appropriate, promotes the extent of reaction
Increase.
8. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is：Pipeline, delivery pump, the flowmeter used in the entire preparation process are resistant material, all switch settings
To be spaced apart.
9. a kind of preparation method of the tubular membrane of aromatic polyamides non-woven cloth support tube according to claim 1, special
Sign is that preparation method may be implemented by changing different process conditions, such as interfacial polymerization time, temperature, finishing time
With temperature etc., the performance of tubular membrane is controlled, to produce the seriation tubular membrane product of different performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078531.7A CN108854578B (en) | 2018-09-14 | 2018-09-14 | Preparation method of tubular membrane of aromatic polyamide non-woven fabric support tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078531.7A CN108854578B (en) | 2018-09-14 | 2018-09-14 | Preparation method of tubular membrane of aromatic polyamide non-woven fabric support tube |
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| Publication Number | Publication Date |
|---|---|
| CN108854578A true CN108854578A (en) | 2018-11-23 |
| CN108854578B CN108854578B (en) | 2021-07-02 |
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| CN201811078531.7A Active CN108854578B (en) | 2018-09-14 | 2018-09-14 | Preparation method of tubular membrane of aromatic polyamide non-woven fabric support tube |
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