CN107177226B - A kind of ceramic membrane surface modifier and method of modifying - Google Patents
A kind of ceramic membrane surface modifier and method of modifying Download PDFInfo
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- CN107177226B CN107177226B CN201710384210.9A CN201710384210A CN107177226B CN 107177226 B CN107177226 B CN 107177226B CN 201710384210 A CN201710384210 A CN 201710384210A CN 107177226 B CN107177226 B CN 107177226B
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- ceramic membrane
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- antistatic agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1618—Non-macromolecular compounds inorganic
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1625—Non-macromolecular compounds organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of ceramic membrane surface modifier and its method of modifying, belong to ceramic membrane field, and wherein modifying agent includes octyl silane hydrolyzate solution, nano titanium oxide dispersion and antistatic agent.Method of modifying is as follows: ceramic membrane being immersed in octyl silane hydrolyzate solution, nano titanium oxide dispersion and antistatic agent mixed liquor, is dried after taking-up.Present invention process is simple, is not necessarily to hot setting, and product hydrophobic angle can effectively prevent accumulation of pollutants in film surface, identical using under the time, compared with ordinary flat ceramic membrane, water flux decaying is smaller up to 120 ° or more.This ceramic membrane can decompose the organic matter of surface attachment, to keep membrane lifetime longer, sewage treatment capacity is more excellent, more conducively regeneration under ultraviolet light irradiation.
Description
Technical field
The present invention relates to a kind of ceramic membrane surface modifier and method of modifying, belong to ceramic membrane technology field.
Background technique
Continuous promotion with country to sewage treatment performance requirement, ceramic membrane are produced as a kind of processing of high-efficiency sewage
Product come into being, and ceramic membrane inevitably causes sludge etc. to accumulate in film surface in sewage disposal process, especially
The accumulation of organic matter not only influences the water flux of ceramic membrane, shortens the working life, and clear to the regeneration of ceramic membrane
It washes and brings bigger difficulty.
Patent CN103755391A discloses a kind of method that Hydrophobic ceramic surface is modified, the main side using activation ceramics
Method, obtains the film layer with hydrophobic structure, and patent CN102976763A discloses a kind of sintering plant leaf blade and prepares carbon/zinc oxide
The method of super-hydrophobic ceramics.It about the preparation of hydrophobic plate membrane, is obtained using the method being sintered again, material cost and place
It is higher to manage cost, it is difficult to realize engineering application.
Summary of the invention
An object of the present invention is to provide a kind of ceramic membrane surface modifier.
A kind of ceramic membrane surface modifier, including octyl silane hydrolyzate solution, nano titanium oxide dispersion, resist it is quiet
Electric agent.
Preferred: solvent is the mixed liquor of water and alcohol in the modifying agent, preferred: the alcohol: water=1~
10:1 (weight ratio).
Preferred: the solid content of the nano titanium oxide dispersion is 15~25%.
It is preferred: in the modifying agent, the mass percent of each ingredient are as follows: antistatic agent 1~3%, octyl silane 5~
10%, the nano titanium oxide dispersion 5~7% of solid content 15~25%, surplus be solvent (preferably: the quality of the solvent
Score is 80~90%).
The second object of the present invention is to provide a kind of flat ceramic membrane surface modification method, simple process, energy conservation and environmental protection,
This method is dried under cryogenic can make ceramic membrane reach hydrophobic antifouling property, substantially reduce ceramic membrane and exist
The decaying of water flux in use process.
Ceramic membrane is immersed octyl silane hydrolyzate solution, nano-silica by a kind of flat ceramic membrane surface modification method
In the mixed liquor for changing titanium decomposed solution, antistatic agent and solvent, dried after taking-up.
Preferred: the immersion time is 5-10 minutes.
Preferred: the drying condition is 60-110 DEG C.
Preferred: the ceramic membrane is completely to handle by removing surface.
Preferred: the octyl silane, titanium dioxide, antistatic agent are nanostructure, preferred: described antistatic
Agent is interior adding type antistatic agent.
Preferred: the ceramic membrane is the porous structures such as aluminium oxide, zirconium oxide, silica, silicon carbide.
The third object of the present invention is to provide the ceramic membrane that any of the above-described kind of method of modifying is prepared.Plate pottery
Porcelain film has photocatalysis performance under ultraviolet light irradiation, can decompose the organic matter that surface is adhered to, solve ceramic membrane
The problem of regeneration washing difficulty.
The fourth object of the present invention is to provide ceramic membrane that any of the above-described kind of method of modifying is prepared at sewage
Application in reason.
The fifth object of the present invention is to provide a kind of sewage-treatment plant, is prepared comprising any of the above-described method of modifying
Ceramic membrane.
Nano titanium oxide dispersion refers to nano titanium dioxide water-dispersion liquid in the present invention.
Compared with prior art, the invention has the following advantages:
Method of the invention is not necessarily to hot setting, dries under cryogenic, has simple process, cost of manufacture
Low advantage.
The modified ceramic membrane of the present invention can reach antifouling property and photocatalysis performance simultaneously, and hydrophobic angle reaches
120 ° or more, ceramic membrane antifouling property is significantly improved, pollutant is not easy to accumulate in flat ceramic film surface, substantially reduce
The decaying of ceramic membrane water flux in use.The ceramic membrane has photocatalysis performance under ultraviolet light irradiation,
The organic matter that surface is adhered to can be decomposed, solve the problems, such as that ceramic membrane regeneration washing is difficult, greatly prolong making for film
With service life, more conducively regeneration washing.
Specific embodiment
In order to be better understood by technical solution of the present invention, the present invention is made furtherly combined with specific embodiments below
It is bright.
Embodiment 1
(1) aluminium oxide ceramic membrane removing surface is clean；
(2) octyl silane hydrolyzate solution, titanium oxide dispersion, antistatic agent and solvent are mixed；
(3) mixed solution that ceramic membrane is immersed to step (2), takes out after five minutes；
(4) 60 DEG C of ceramic membrane are dried, a kind of hydrophobic antipollution ceramic membrane can be obtained.
It is tested through water contact angle tester, contact angle is 124 °.
Wherein: the mass fraction of each ingredient are as follows: antistatic agent 2%, octyl silane 8%, the nano-silica of solid content 22%
Change titanium dispersion liquid 6%, solvent 84%.
The solvent of step (2) is the mixed liquor of water and alcohol, the alcohol: water=5:1 (weight ratio).
Embodiment 2
(1) zirconium oxide ceramic membrane removing surface is clean；
(2) octyl silane hydrolyzate solution, titanium oxide dispersion, antistatic agent and solvent are mixed；
(3) mixed solution that ceramic membrane is immersed to step (2), takes out after ten minutes；
(4) 110 DEG C of ceramic membrane are dried, a kind of hydrophobic antipollution ceramic membrane can be obtained.
It is tested through water contact angle tester, contact angle is 143 °.
Wherein: the mass fraction of each ingredient are as follows: antistatic agent 1%, octyl silane 8%, the nano-silica of solid content 25%
Change titanium water dispersion liquid 6%, solvent 85%.
The solvent of step (2) is the mixed liquor of water and alcohol, the alcohol: water=9:1 (weight ratio).
Embodiment 3
(1) silica ceramic membrane removing surface is clean；
(2) octyl silane hydrolyzate solution, titanium oxide dispersion, antistatic agent and solvent are mixed；
(3) mixed solution that ceramic membrane is immersed to step (2), takes out after 8 minutes；
(4) 70 DEG C of ceramic membrane are dried, a kind of hydrophobic antipollution ceramic membrane can be obtained.
It is tested through water contact angle tester, contact angle is 137 °.
Wherein: the mass fraction of each ingredient are as follows: antistatic agent 3%, octyl silane 5%, the nano-silica of solid content 15%
Change titanium dispersion liquid 7%, solvent 85%.
The solvent of step (2) is the mixed liquor of water and alcohol, the alcohol: water=2:1 (weight ratio).
Embodiment 4
(1) silicon carbide ceramic membrane removing surface is clean；
(2) octyl silane hydrolyzate solution, titanium oxide dispersion, antistatic agent and solvent are mixed；
(3) mixed solution that ceramic membrane is immersed to step (2), takes out after 9 minutes；
(4) 90 DEG C of ceramic membrane are dried, a kind of hydrophobic antipollution ceramic membrane can be obtained.
It is tested through water contact angle tester, contact angle is 130 °.
Wherein: the mass fraction of each ingredient are as follows: antistatic agent 2%, octyl silane 8%, the nano-silica of solid content 22%
Change titanium dispersion liquid 6.5%, solvent 83.5%.
The solvent of step (2) is the mixed liquor of water and alcohol, the alcohol: water=1.5:1 (weight ratio).
Test example 1
The modified obtained ceramic membrane of the present invention and ordinary flat ceramic membrane are put into sewage jointly and do flux test,
The decaying of ordinary flat ceramics membrane flux is 1.5 times of the ceramic membrane；The flat ceramic film surface is substantially without the dirt of attachment
Object is contaminated, and the attachment of ordinary flat ceramics membrane contaminant is more.It reacts front and back element through XPS test contaminant to form, in pollutant
Organic matter almost react.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (8)
1. a kind of ceramic membrane surface modifier, it is characterized in that: being received by octyl silane hydrolyzate solution, solid content 15~25%
Rice titanium oxide dispersion, antistatic agent composition,
The modifying agent is made by weight percent of following component: antistatic agent 1~3%, octyl silane 5~10%, admittedly contain
The nano titanium oxide dispersion 5~7% of amount 15~25%, surplus is solvent.
2. modifying agent as described in claim 1, it is characterized in that: solvent is the mixed liquor of water and alcohol in the modifying agent.
3. modifying agent as claimed in claim 2, it is characterized in that: the alcohol: water=1~10:1, weight ratio.
4. a kind of flat ceramic membrane surface modification method, it is characterized in that: ceramic membrane is immersed plate described in claim 1
In ceramic membrane surface modifying agent, dried after taking-up.
5. method of modifying as claimed in claim 4, it is characterized in that: the antistatic agent is interior adding type antistatic agent.
6. the ceramic membrane that method of modifying described in claim 4 or 5 is prepared.
7. application of the ceramic membrane that method of modifying described in claim 4 or 5 is prepared in sewage treatment.
8. a kind of sewage-treatment plant, it is characterized in that: the plate being prepared comprising method of modifying described in claim 4 or 5
Ceramic membrane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384210.9A CN107177226B (en) | 2017-05-26 | 2017-05-26 | A kind of ceramic membrane surface modifier and method of modifying |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710384210.9A CN107177226B (en) | 2017-05-26 | 2017-05-26 | A kind of ceramic membrane surface modifier and method of modifying |
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| Publication Number | Publication Date |
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| CN107177226A CN107177226A (en) | 2017-09-19 |
| CN107177226B true CN107177226B (en) | 2019-07-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111635258B (en) * | 2020-05-08 | 2022-05-03 | 北京林业大学 | TiO based on ceramic membrane2Super-hydrophobic modification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264455A (en) * | 2008-04-17 | 2008-09-17 | 北京首创纳米科技有限公司 | Preparation of photocatalysis coating supported with titanium dioxide under low temperature |
| CN103265882A (en) * | 2013-05-08 | 2013-08-28 | 上海纳米技术及应用国家工程研究中心有限公司 | High temperature resistance anti-ultraviolet hydrophobic coating material and preparation method thereof |
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- 2017-05-26 CN CN201710384210.9A patent/CN107177226B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264455A (en) * | 2008-04-17 | 2008-09-17 | 北京首创纳米科技有限公司 | Preparation of photocatalysis coating supported with titanium dioxide under low temperature |
| CN103265882A (en) * | 2013-05-08 | 2013-08-28 | 上海纳米技术及应用国家工程研究中心有限公司 | High temperature resistance anti-ultraviolet hydrophobic coating material and preparation method thereof |
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| CN107177226A (en) | 2017-09-19 |
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