CN1631498A - Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer - Google Patents
Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer Download PDFInfo
- Publication number
- CN1631498A CN1631498A CN 200410036195 CN200410036195A CN1631498A CN 1631498 A CN1631498 A CN 1631498A CN 200410036195 CN200410036195 CN 200410036195 CN 200410036195 A CN200410036195 A CN 200410036195A CN 1631498 A CN1631498 A CN 1631498A
- Authority
- CN
- China
- Prior art keywords
- film
- solution
- sulfated chitosan
- nanometer filtering
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A way to produce sulfuric acid ester--high numerator film, whose feature is using high numerator film polymer as the basic film such as polypropylene, juyixi, and so on, on the film smear over a layer of the solution of sulfuric acid ester, operate for 1.5--2h at the temperature of 50-60 degC, then smear over a layer of ether solution. Do it for 2--4h at 50-65 degC, wash it using water ion. The invention of the film's surface has some free ammonia, so it has the effect of killing germs, hard to adhere microorganism, increase the efficiency of the film's using, and prolong the survive life, at the same time, it has the good efficiency of filtering.
Description
Technical field:
The present invention relates to a kind of preparation method who is used for the NF membrane of water treatment, particularly relate to the preparation method of a kind of sulfated chitosan-high molecular polymer composite nanometer filtering film.
Background technology:
NF membrane is the film product of a kind of membrane aperture between counter-infiltration and milipore filter, and it has Na
+And Cl
-Lower Deng the monovalention rejection, but to Ca
2+, SO
4 2-, Mg
2+Advantages such as the rejection Deng high price ion and organic matter small-molecular weight (200～1000) material is very high, and operating pressure is low.Since last century the mid-1970s to have developed some NF membrane, as the asymmetric NF membrane of two acetic acid-triacetate fiber, aromatic polyamide composite nanometer filtering film and sulfonated polyether sulfone coating composite nanometer filtering film etc.These high molecular compound film surfaces are microorganism such as periphtic algae and bacterium easily, influences the service efficiency and the life-span of film.The NF membrane development ground zero of China.
Summary of the invention:
The purpose of this invention is to provide a kind of method for preparing sulfated chitosan-high molecular polymer composite nanometer filtering film, to remedy the above-mentioned deficiency of this technology both at home and abroad.
The preparation method of a kind of sulfated chitosan-high molecular polymer composite nanometer filtering film, it is characterized in that to hold back relative molecular weight be 6000～10000 high molecular polymer polyacrylonitrile, polysulfones, polyether sulfone, polypropylene, polyethylene, Kynoar, the cellulose acetate class, Polyurethane, polyvinyl chloride, the milipore filter of polycaprolactam or poly-furans alcohol is a basement membrane, the even aqueous solution of the sulfated chitosan of dip-coating one deck 2.0%～4.0% or contain 2.0%～4.0% sulfated chitosan and the aqueous solution of 5.0%～10%NaOH on this basement membrane, handle 0.5～2h for 50～60 ℃, dip-coating one deck 0.5～2% formaldehyde again, acetaldehyde, the water soluble aldehyde crosslinking agent of glutaraldehyde or the ethanolic solution of 0.5～1.0% epoxychloropropane, four cyanogen furans solution of vulcabond, four cyanogen furans solution, the one class oil-soluble crosslinking agent of propanetriol-diglycidyl-ether, crosslinked 2～4h under 50～65 ℃ cleans with deionized water.
Sulfated chitosan of the present invention-high molecular polymer composite membrane surface is because of there being a small amount of uncrosslinked free amine group, so have bactericidal effect, be difficult for periphtic algae and microorganism, thereby improved the service efficiency of film and prolonged its service life, still have good NF membrane effect simultaneously.
The specific embodiment:
Embodiment 1.
Get and hold back the milipore filter that relative molecular weight is 6000～10000 polyacrylonitrile, with washed with de-ionized water film surface, be fixed on the glass plate of level and smooth cleaning with the adhesive tape of wide 1cm, room temperature is evaporated near dried.Getting sulfated chitosan then is dissolved in and is made into 2.0%～4.0% (weight percent concentration in the deionized water, solution down together), filter with 4 flint glass F sand core funnels, getting filtrate carefully is poured on the above-mentioned membrane surface, with the smooth solution of smooth glass bar, make its even dip-coating in the surface of basement membrane, excessive solution allows it overflow, dry the back and handle 0.5～2h at 50～60 ℃, on film, carefully pour 0.5%～2% glutaraldehyde water solution again into, same solution with the glass bar flat surface, excessive solution allows it overflow, then this lamina membranacea is taken off from glass plate behind 50～65 ℃ of heat cross-linking 2～4h, thoroughly clean the back with deionized water and in deionized water, soak 24h, stand-by after the precompressed.Carry out the desalination experiment with this film on desalter, in room temperature, flow is 40L/h, and operating pressure is 4.0Mpa, to the NaCl and the Na of 1000mg/L concentration
2SO
4Solution is handled, when two kinds of feed liquid flux are 10.7kg/m
2During h, the rejection that records two kinds of salt is respectively 40% and 50%; When two kinds of feed liquid flux are 7.1kg/m
2During h, the salt rejection that records two kinds of salt is respectively: 81% and 92%.Illustrate that this film has good NF membrane function.
When using the glutaraldehyde in the present embodiment instead formaldehyde, acetaldehyde water soluble aldehyde crosslinking agent or its mixture, the film that makes also has similar nanofiltration effect.
Embodiment 2.
Polypropylene cyanogen milipore filter among the embodiment 1 used instead hold back the milipore filter that relative molecular weight is 6000～10000 polysulfones, polyether sulfone, polypropylene, polyethylene, Kynoar, cellulose acetate class, Polyurethane, polyvinyl chloride, polycaprolactam or poly-furans alcohol, conditions such as operating pressure are identical with embodiment 1, record corresponding high molecular polymer-sulfated chitosan composite nanometer filtering film and have and the similar nanofiltration effect of embodiment 1 polyacrylonitrile sulfated chitosan composite nanometer filtering film.
Embodiment 3.
Evenly the chitosan sulfate aqueous solution of ester of dip-coating changes and is coated with one deck and contains 2.0%～4.0% the sulfated chitosan and the aqueous solution of 5.0%～10%NaOH on the basement membrane described in embodiment 1 and the embodiment 2, with the smooth solution of smooth glass bar, make its even dip-coating in the surface of basement membrane, excessive solution allows it overflow, dry the back and handle 0.5～2h at 50～60 ℃, dip-coating one deck 0.5～1.0% epoxychloropropane ethanolic solution again, handle 2～4h at 50～65 ℃, clean with deionized water, its nanofiltration effect is similar.
When using the epoxychloropropane ethanolic solution in the present embodiment four cyanogen furans solution of vulcabond, propanetriol-diglycidyl-ether one class oil-soluble crosslinking agent instead, crosslinker concentration, operating condition and step are constant, and the film that makes has similar nanofiltration effect.
Claims (1)
- The preparation method of 1 one kinds of sulfated chitosan-high molecular polymer composite nanometer filtering films, it is characterized in that to hold back relative molecular weight be 6000～10000 high molecular polymer polyacrylonitrile, polysulfones, polyether sulfone, polypropylene, polyethylene, Kynoar, the cellulose acetate class, Polyurethane, polyvinyl chloride, the milipore filter of polycaprolactam or poly-furans alcohol is a basement membrane, the even aqueous solution of the sulfated chitosan of dip-coating one deck 2.0%～4.0% or contain 2.0%～4.0% sulfated chitosan and the aqueous solution of 5.0%～10%NaOH on this basement membrane, handle 0.5～2h for 50～60 ℃, dip-coating one deck 0.5～2% formaldehyde again, acetaldehyde, the ethanolic solution of glutaraldehyde water soluble aldehyde crosslinking agent or 0.5～1.0% epoxychloropropane, four cyanogen furans solution of vulcabond, four cyanogen furans solution, the one class oil-soluble crosslinking agent of propanetriol-diglycidyl-ether, crosslinked 2～4h under 50～65 ℃ cleans with deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100361951A CN1296124C (en) | 2004-10-29 | 2004-10-29 | Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100361951A CN1296124C (en) | 2004-10-29 | 2004-10-29 | Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631498A true CN1631498A (en) | 2005-06-29 |
| CN1296124C CN1296124C (en) | 2007-01-24 |
Family
ID=34845779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100361951A Expired - Fee Related CN1296124C (en) | 2004-10-29 | 2004-10-29 | Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1296124C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673831B (en) * | 2008-09-11 | 2011-09-21 | 元智大学 | Composite proton exchange membrane of acidic nanofiber/alkaline high polymer and preparation method thereof |
| CN102228802A (en) * | 2011-06-27 | 2011-11-02 | 张会艳 | Food-grade antibacterial filter membrane and preparation method thereof |
| CN102266727A (en) * | 2010-06-02 | 2011-12-07 | 中国科学院化学研究所 | Antibacterial ultrafiltration membrane or microfiltration membrane |
| CN102653597A (en) * | 2012-05-09 | 2012-09-05 | 江苏维赛科技生物发展有限公司 | Preparation method of cellulose acetate membrane surface crosslinked chitosan hydrophilic membrane |
| CN102974232A (en) * | 2012-11-26 | 2013-03-20 | 武汉江扬环境科技有限公司 | Method for producing anti-pollution modified polyvinylidene fluoride hollow fiber membrane |
| CN103785365A (en) * | 2014-02-25 | 2014-05-14 | 南开大学 | Preparation method of metal ion selective separation composite membrane |
| CN104548951A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Antibacterial composite nanofiltration membrane with high salt rejection rate and preparation method of antibacterial composite nanofiltration membrane |
| CN105289321A (en) * | 2014-07-22 | 2016-02-03 | 中国石油化工股份有限公司 | Composite nanofiltration membrane and preparation method thereof |
| CN105435646A (en) * | 2014-07-22 | 2016-03-30 | 中国石油化工股份有限公司 | Composite nanofiltration membrane and preparation method thereof |
| CN105727768A (en) * | 2016-05-13 | 2016-07-06 | 高学理 | Preparation method of self-supporting forward osmosis membrane based on chitosan |
| CN105854650A (en) * | 2016-06-17 | 2016-08-17 | 安庆市天虹新型材料科技有限公司 | Anti-fouling high-throughput polysulfone composite membrane |
| CN106436313A (en) * | 2016-09-23 | 2017-02-22 | 泉州亚林新材料科技有限公司 | Chitosan quaternary ammonium salt antibacterial fiber, fabric and hygienic product and their preparation processes |
| CN108636140A (en) * | 2018-05-04 | 2018-10-12 | 烟台金正环保科技有限公司 | A kind of preparation method of the lotus positive electricity polyamide composite nanofiltration membrane based on Lactated chitosan |
| CN109289551A (en) * | 2017-07-25 | 2019-02-01 | 中国石油化工股份有限公司 | Reverse osmosis membrane and its preparation method and application |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS632304A (en) * | 1986-06-20 | 1988-01-07 | Mitsubishi Electric Corp | Manufacture of electromagnetic coil for electromagnetic coupler |
| JPH07108367B2 (en) * | 1987-04-10 | 1995-11-22 | 株式会社クラレ | Dehumidification method |
| JPH0332726A (en) * | 1989-03-14 | 1991-02-13 | Nakano Vinegar Co Ltd | Composite separating membrane and production thereof |
-
2004
- 2004-10-29 CN CNB2004100361951A patent/CN1296124C/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673831B (en) * | 2008-09-11 | 2011-09-21 | 元智大学 | Composite proton exchange membrane of acidic nanofiber/alkaline high polymer and preparation method thereof |
| CN102266727A (en) * | 2010-06-02 | 2011-12-07 | 中国科学院化学研究所 | Antibacterial ultrafiltration membrane or microfiltration membrane |
| CN102266727B (en) * | 2010-06-02 | 2013-10-30 | 中国科学院化学研究所 | Antibacterial ultrafiltration membrane or microfiltration membrane |
| CN102228802A (en) * | 2011-06-27 | 2011-11-02 | 张会艳 | Food-grade antibacterial filter membrane and preparation method thereof |
| CN102653597A (en) * | 2012-05-09 | 2012-09-05 | 江苏维赛科技生物发展有限公司 | Preparation method of cellulose acetate membrane surface crosslinked chitosan hydrophilic membrane |
| CN102974232B (en) * | 2012-11-26 | 2015-06-17 | 武汉江扬环境科技股份有限公司 | Method for producing anti-pollution modified polyvinylidene fluoride hollow fiber membrane |
| CN102974232A (en) * | 2012-11-26 | 2013-03-20 | 武汉江扬环境科技有限公司 | Method for producing anti-pollution modified polyvinylidene fluoride hollow fiber membrane |
| CN104548951A (en) * | 2013-10-15 | 2015-04-29 | 中国石油化工股份有限公司 | Antibacterial composite nanofiltration membrane with high salt rejection rate and preparation method of antibacterial composite nanofiltration membrane |
| CN103785365B (en) * | 2014-02-25 | 2016-03-30 | 南开大学 | A kind of preparation method of metalloform-selective composite membrane for separation |
| CN103785365A (en) * | 2014-02-25 | 2014-05-14 | 南开大学 | Preparation method of metal ion selective separation composite membrane |
| CN105289321A (en) * | 2014-07-22 | 2016-02-03 | 中国石油化工股份有限公司 | Composite nanofiltration membrane and preparation method thereof |
| CN105435646A (en) * | 2014-07-22 | 2016-03-30 | 中国石油化工股份有限公司 | Composite nanofiltration membrane and preparation method thereof |
| CN105289321B (en) * | 2014-07-22 | 2017-07-28 | 中国石油化工股份有限公司 | A kind of composite nanometer filtering film and preparation method thereof |
| CN105435646B (en) * | 2014-07-22 | 2017-11-07 | 中国石油化工股份有限公司 | A kind of composite nanometer filtering film and preparation method thereof |
| CN105727768A (en) * | 2016-05-13 | 2016-07-06 | 高学理 | Preparation method of self-supporting forward osmosis membrane based on chitosan |
| CN105854650A (en) * | 2016-06-17 | 2016-08-17 | 安庆市天虹新型材料科技有限公司 | Anti-fouling high-throughput polysulfone composite membrane |
| CN106436313A (en) * | 2016-09-23 | 2017-02-22 | 泉州亚林新材料科技有限公司 | Chitosan quaternary ammonium salt antibacterial fiber, fabric and hygienic product and their preparation processes |
| CN109289551A (en) * | 2017-07-25 | 2019-02-01 | 中国石油化工股份有限公司 | Reverse osmosis membrane and its preparation method and application |
| CN109289551B (en) * | 2017-07-25 | 2021-12-21 | 中国石油化工股份有限公司 | Reverse osmosis membrane and preparation method and application thereof |
| CN108636140A (en) * | 2018-05-04 | 2018-10-12 | 烟台金正环保科技有限公司 | A kind of preparation method of the lotus positive electricity polyamide composite nanofiltration membrane based on Lactated chitosan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1296124C (en) | 2007-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1296124C (en) | Method for preparing compound nanometer filtering membrane of chitosan sulfate-high molecule polymer | |
| US4960517A (en) | Treatment of composite polyamide membranes via substitution with amine reactive reagents | |
| US4990252A (en) | Stable membranes from sulfonated polyarylethers | |
| JP2694341B2 (en) | Improved oxidation resistant film and method of manufacturing the same | |
| EP2857087A1 (en) | Reverse osmosis membrane | |
| EP2301655A1 (en) | Filtering element and method for making the same and water treating devide | |
| CN106582326B (en) | A kind of antibacterial composite nanometer filtering film and its preparation method and application | |
| EP2857088B1 (en) | Method for manufacturing a reverse osmosis membrane | |
| DE2236663A1 (en) | NETWORKED INTERPOLYMER MEMBRANE WITH FIXED CHARGE AND PROCESS FOR THEIR PRODUCTION | |
| CN104028110A (en) | Thin-layer composite forward osmosis membrane and preparation method thereof | |
| CN108654396A (en) | Polymer film and preparation method with absorption heavy metal and organic pollution function | |
| WO2016002819A1 (en) | Composite semipermeable membrane | |
| CN105435657B (en) | A kind of composite nanometer filtering film and preparation method thereof | |
| CN107188569B (en) | Graphene oxide-based seawater desalination composite membrane and preparation method thereof | |
| WO1999010090A1 (en) | Polyion complex separation membrane with a double structure | |
| CN102764594A (en) | Method for preparing chiral chitosan charged nanofiltration membranes | |
| CN108246129A (en) | A kind of sewage disposal antipollution complex reverse osmosis membrane and preparation method thereof | |
| CN110813107A (en) | High-flux low-pressure composite reverse osmosis membrane and preparation method thereof | |
| CN105817143B (en) | A kind of cleaning method of ultrafiltration membrane surface iron colloid | |
| JP2860908B2 (en) | Crosslinked cellulose composite semipermeable membrane for water treatment and method for producing the same | |
| JPWO2019155946A1 (en) | Composite separation membrane | |
| CN104470857B (en) | Biocidal filter media | |
| JP2009541046A (en) | Dihalogeno-hydroxydiphenyl ether as antibacterial agent in water treatment | |
| KR101599112B1 (en) | Positive electric charge-coating agent for antivirus media, Antivirus media using that and Preparing method thereof | |
| CN102872733A (en) | High-desalinization rate aromatic polyamide compound nanofiltration membrane and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20111029 |