CN105080361B - Polypropylene hollow fiber ultrafiltration membrane coated with polymer composite coating - Google Patents
Polypropylene hollow fiber ultrafiltration membrane coated with polymer composite coating Download PDFInfo
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- CN105080361B CN105080361B CN201510511770.7A CN201510511770A CN105080361B CN 105080361 B CN105080361 B CN 105080361B CN 201510511770 A CN201510511770 A CN 201510511770A CN 105080361 B CN105080361 B CN 105080361B
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Abstract
The invention relates to a polypropylene hollow fiber ultrafiltration membrane coated with a polymer composite coating. The polypropylene hollow fiber ultrafiltration membrane comprises a water inlet surface and a water outlet surface which are respectively coated with a coating; the coating on the water inlet surface comprises the following raw materials: tricresyl phosphate, dioctyl phthalate, a modified polysiloxane polymer, polyether-ether-ketone (PEEK), methenamine and the like; and the coating on the water outlet surface comprises the following raw materials: allyl polyoxy alkyl epoxy ether, pentaerythritol, polyethylene glycol lauric acid diester, polyoxyethylene alkylamine, nano silver and the like. The polypropylene hollow fiber ultrafiltration membrane is capable of increasing the retention rate for macromolecular organic matter and emulsified oil, so that the COD removal rate of sewage is greatly increased, the electrostatic effect on the surface of the membrane is changed, the adsorption for contaminants of the surface of the membrane is prevented, the membrane can be continuously used for a long time under the condition of high membrane flux, and the service life of the membrane is prolonged. The addition of the nano silver effectively improves the antibacterial mildew properties of the membrane.
Description
Technical field
The present invention relates to a kind of polypropylene hollow fiber milipore filter of coating high polymer composite coating, belongs to water process neck
Domain.
Background technology
Membrane separation technique is a kind of isolation technics for being widely used in solution or gaseous matter separation, concentration and purifying.Film
Wall micropore gathers, and stoste passes through membranous wall for filter liquor by the side of film, solvent and small molecule solute under a certain pressure, and big
Molecule solute is rejected by, and reaches the purpose that material is separated and concentrated.Membrane separating process be dynamic filtration process, macromolecular solute
Intercepted by membranous wall, flowed out with concentrate, can continuous Long-Time Service.Filter process can run under normal temperature, low pressure, become without phase
Change, it is energy-efficient.
Polypropylene hollow fiber milipore filter is one kind of milipore filter.Doughnut external diameter:450-460 μm, internal diameter:350-
360 μm, 50 μm of thickness of pipe wall is the hot phase stretched film of category.Molecular cut off 5-10 ten thousand.Raw water is on the outside of doughnut or inner chamber pressurizes
Flowing, respectively constitutes external-compression type and inner pressed.Ultrafiltration is dynamic filtration process, and being trapped material can exclude with concentration, pollution resistance
It is medium, can continuously run for a long time.It is net that polypropylene hollow fiber hyperfiltration technique is mainly used in mineral spring Water warfare, productive life water
The medicine such as pollution industry water process and recovery, urban sewage recycling, the changes such as change, medical purification, concentration of juices, papermaking plating chemical industry
The industries such as work, building, weaving, papermaking, petrochemical industry.
But existing polypropylene hollow fiber milipore filter is primarily present following shortcoming：
1st, during raw water is separated, surface can deposit a large amount of impurity and particle, and with the accumulation of impurity particle, film has
Effect area is tapered into, and membrane flux is reduced, and filter efficiency is deteriorated；
2nd, resistance to acids and bases is poor, Antimicrobial preservative poor performance；
3rd, traditional polypropylene hollow fiber milipore filter cleaning method is that, using gas or liquid backwash, so operation is needed
External equipment is introduced, and filter process must stop, and improve operating cost, and easily cause the damage of film.
The content of the invention
It is an object of the invention to overcome the drawbacks described above that prior art is present, there is provided one kind coating high polymer composite coating
Polypropylene hollow fiber milipore filter, including upstream face and go out the water surface, in upstream face and go out the water surface and be respectively coated with coating；
The coating of the upstream face coating is made up of the raw material of following parts by weight：
Tricresyl phosphate 12-30
Dioctyl phthalate 16-18
Modified polyorganosiloxane polymer 8-12
Polyether-ether-ketone PEEK 6-7
Methenamine 2-3
Coalescents 2-5
Ammonium molybdate 7-9
Polyethylene glycol 40-50；
It is described go out the water surface coating coating be made up of the raw material of following parts by weight：
Pi-allyl polyoxy alkyl epoxy base ether 16-19
Pentaerythrite 15-20
Polyethylene glycol bay acid diester 27-30
The dilute alkylamine 1-2 of polyoxyethylene
Nano Silver 3-5
DAAM 1-2.5
Methyl tetrahydro phthalic anhydride 2-4.
The thickness of the coating of the upstream face coating is 80-200nm.
It is described go out the water surface coating coating thickness be 50-150nm.
The present invention has advantages below：
(1) tricresyl phosphate, dioctyl phthalate, modified polyorganosiloxane polymer, polyether-ether-ketone PEEK this four
Plant material compounding and produce synergy, improve film to larger molecular organicses and the rejection of oil emulsion, the COD for making sewage goes
Except rate is greatly improved.
(2) methenamine, ammonium molybdate, pentaerythrite change the electrostatic interaction on film surface, prevent film surface to pollution
The absorption of thing.
(3) addition of Nano Silver makes film surface have sterilized effect, and the antibacterial that can effectively improve film is gone mouldy performance.
(4) by pi-allyl polyoxy alkyl epoxy base ether, polyethylene glycol bay acid diester being introduced in outer investment precoat, being gathered
The dilute alkylamine of oxidation second, DAAM, methyl tetrahydro phthalic anhydride, improve film strength, resistance to acids and bases, can make film in height
Long-time is continuously used under conditions of membrane flux, extends the service life of film.
Specific embodiment
Embodiment 1：
A kind of polypropylene hollow fiber membrane of coating high polymer composite coating, including upstream face and go out the water surface, in upstream face
Coating is respectively coated with the water surface is gone out；
The coating of the upstream face coating is made up of the raw material of following parts by weight：
Tricresyl phosphate 12
Dioctyl phthalate 16
Modified polyorganosiloxane polymer 8
Polyether-ether-ketone PEEK 6
Methenamine 2
Coalescents 2
Ammonium molybdate 7
Polyethylene glycol 40；
The thickness of the coating of the upstream face coating is about 80nm.
It is described go out the water surface coating coating be made up of the raw material of following parts by weight：
Pi-allyl polyoxy alkyl epoxy base ether 16
Pentaerythrite 15
Polyethylene glycol bay acid diester 27
The dilute alkylamine 1 of polyoxyethylene
Nano Silver 3
DAAM 1
Methyl tetrahydro phthalic anhydride 2.
It is described go out water surface coating the thickness of coating be about 50nm.
The polypropylene hollow fiber membrane of above-mentioned coating high polymer composite coating is applied to into the process of certain waste water in pharmaceutical plants, Jing
After pretreatment, the COD for entering water is 2600-6200mg/L, and the COD of water outlet is 150-310 mg/L, and clearance is 94.3-95%, place
Reason amount is 2000L/d, and membrane flux during operation can averagely reach 10L/（m2.h）
Embodiment 2：
A kind of polypropylene hollow fiber membrane of coating high polymer composite coating, including upstream face and go out the water surface, in upstream face
Coating is respectively coated with the water surface is gone out；
The coating of the upstream face coating is made up of the raw material of following parts by weight：
Tricresyl phosphate 30
Dioctyl phthalate 18
Modified polyorganosiloxane polymer 12
Polyether-ether-ketone PEEK 7
Methenamine 3
Coalescents 5
Ammonium molybdate 9
Polyethylene glycol 50；
The thickness of the coating of the upstream face coating is about 50-200nm.
It is described go out the water surface coating coating be made up of the raw material of following parts by weight：
Pi-allyl polyoxy alkyl epoxy base ether 19
Pentaerythrite 20
Polyethylene glycol bay acid diester 30
The dilute alkylamine 2 of polyoxyethylene
Nano Silver 5
DAAM 2.5
Methyl tetrahydro phthalic anhydride 4.
It is described go out water surface coating the thickness of coating be about 150nm.
The polypropylene hollow fiber membrane of above-mentioned coating high polymer composite coating is applied to into the process of certain landfill leachate,
After pretreatment, the COD for entering water is 2000-4300mg/L, and the COD of water outlet is 110-220 mg/L, and clearance is 94.5-95%,
Treating capacity is 1500L/d, and membrane flux during operation can averagely reach 10L/（m2.h）
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those of ordinary skill in the art disclosed herein technical scope in, the change that can expect without creative work or
Replace, all should be included within the scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Fixed protection domain is defined.
Claims (3)
1. it is a kind of coating high polymer composite coating polypropylene hollow fiber milipore filter, it is characterised in that：Including upstream face and going out
The water surface, in upstream face and goes out the water surface and is respectively coated with coating；
The coating of the upstream face coating is made up of the raw material of following parts by weight：
Tricresyl phosphate 12-30
Dioctyl phthalate 16-18
Modified polyorganosiloxane polymer 8-12
Polyether-ether-ketone PEEK 6-7
Methenamine 2-3
Coalescents 2-5
Ammonium molybdate 7-9
Polyethylene glycol 40-50；
It is described go out the water surface coating coating be made up of the raw material of following parts by weight：
Pi-allyl polyoxy alkyl epoxy base ether 16-19
Pentaerythrite 15-20
Polyethylene glycol bay acid diester 27-30
The dilute alkylamine 1-2 of polyoxyethylene
Nano Silver 3-5
DAAM 1-2.5
Methyl tetrahydro phthalic anhydride 2-4.
2. it is according to claim 1 coating high polymer composite coating polypropylene hollow fiber milipore filter, it is characterised in that：
The thickness of the coating of the upstream face coating is 80-200nm.
3. it is according to claim 1 coating high polymer composite coating polypropylene hollow fiber milipore filter, it is characterised in that：
It is described go out the water surface coating coating thickness be 50-150nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511770.7A CN105080361B (en) | 2015-08-20 | 2015-08-20 | Polypropylene hollow fiber ultrafiltration membrane coated with polymer composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511770.7A CN105080361B (en) | 2015-08-20 | 2015-08-20 | Polypropylene hollow fiber ultrafiltration membrane coated with polymer composite coating |
Publications (2)
| Publication Number | Publication Date |
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| CN105080361A CN105080361A (en) | 2015-11-25 |
| CN105080361B true CN105080361B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510511770.7A Active CN105080361B (en) | 2015-08-20 | 2015-08-20 | Polypropylene hollow fiber ultrafiltration membrane coated with polymer composite coating |
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Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579459A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 24 |
| CN108671763A (en) * | 2018-04-27 | 2018-10-19 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 16 |
| CN108479418A (en) * | 2018-04-27 | 2018-09-04 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 20 |
| CN108619918A (en) * | 2018-04-27 | 2018-10-09 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 10 |
| CN108579458A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 19 |
| CN108579453A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 5 |
| CN108554178A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 11 |
| CN108554197A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 18 |
| CN108579455A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 8 |
| CN108554198A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 17 |
| CN108619920A (en) * | 2018-04-27 | 2018-10-09 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 12 |
| CN108579456A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 7 |
| CN108671762A (en) * | 2018-04-27 | 2018-10-19 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 22 |
| CN108579424A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 3 |
| CN108554179A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 4 |
| CN108554196A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 25 |
| CN108619919A (en) * | 2018-04-27 | 2018-10-09 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 6 |
| CN108579454A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 9 |
| CN108579457A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 13 |
| CN108579460A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 21 |
| CN108554194A (en) * | 2018-04-27 | 2018-09-21 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 14 |
| CN108671766A (en) * | 2018-04-27 | 2018-10-19 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 2 |
| CN108671768A (en) * | 2018-04-27 | 2018-10-19 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 15 |
| CN108579429A (en) * | 2018-04-27 | 2018-09-28 | 袁虹娣 | The novel tree-shaped nanoscale cylindrical hole filter membrane that branch's hole count for Liquid-liquid separation is 23 |
| CN108704483A (en) * | 2018-06-28 | 2018-10-26 | 江苏泓膜业科技有限公司 | A kind of PVDF hollow fiber ultrafiltration membranes with composite coating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1776176B1 (en) * | 2004-08-13 | 2015-09-16 | McMASTER UNIVERSITY | Process for preparing a filtration membrane comprising a non-crosslinked gel polymer |
| CN102210979B (en) * | 2011-06-17 | 2013-05-01 | 海南立昇净水科技实业有限公司 | Positively charged polyvinyl chloride hollow fiber nanofiltration membrane and preparation method thereof |
| KR101994213B1 (en) * | 2013-12-31 | 2019-06-28 | 코오롱인더스트리 주식회사 | Composite Hollow Fiber Membrane and Method for Manufacturing The Same |
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| CB03 | Change of inventor or designer information |
Inventor after: Yin Jianwei Inventor before: Zhang Zhefu |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170410 Address after: Two street 511400 Guangdong city of Guangzhou province Panyu District Shiji Town nanyong industrial officer No. 4 Applicant after: Guangzhou Naqing Environmental Protection Technology Co., Ltd. Address before: The streets of Haicheng Dai Gang Lu Longwan District of Wenzhou City, Zhejiang Province, No. 15 325055 Applicant before: Zhang Zhefu |
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