Daim ntawv thov tseem ceeb ntawm Polyethersulfone
Polyethersulfone (PES) yog cov khoom siv membrane nrog kev ua haujlwm zoo heev. Nws cov molecule muaj lub rigidity ntawm benzene nplhaib, qhov yooj yim ntawm ether pawg thiab loj conjugated system tsim los ntawm sulfone pawg thiab tag nrho cov qauv tsev. Tag nrho cov molecule muaj zoo stability thiab mechanical stability. Kev ua tau zoo heev thiab kev ua yeeb yaj kiab ua tau zoo, lub iav hloov pauv kub yog siab li 225 ° C, tuaj yeem siv tau ntev ntawm 180 ° C, thiab muaj cov khoom zoo xws li nplaim taws, hluav taws xob tiv thaiv, acid tsis kam, oxidation tsis kam, thiab hnyav kuj. Cov khoom siv membrane ua los ntawm polyethersulfone muaj kev kub siab ua haujlwm, kub tsis kam thiab oxidation tsis kam, thiab nws cov biocompatibility zoo dua lwm cov ntaub ntawv membrane. Nws yog lub hauv paus zoo tagnrho rau kev npaj cov khoom sib xyaw nanofiltration membranes. Nyob rau hauv xyoo tas los no, kev tshawb fawb thiab kev siv tau nce zuj zus.
1) Kev npaj ntawm polyethersulfone / kev ua haujlwm qab zib muaj cov polymer hybrid membrane. Txoj kev siv polyethersulfone daim nyias nyias ua lub hauv paus daim nyias nyias, txais yuav "nias chemistry" thev naus laus zis, siv cuprous bromide raws li cov txheej txheem catalytic, thiab bipyridine ua tus pib, thiab ua kom tiav cov tshuaj tiv thaiv ntawm cov piam thaj uas muaj cov polymers nyob rau hauv cov dej tsis muaj oxygen thiab tsis muaj oxygen. Nto grafting ntawm polyethersulfone. Siv "ua neej nyob" / tswj tau dawb radical polymerization txoj kev los ua ke ua haujlwm muaj suab thaj muaj cov polymers, tswj cov haujlwm ntawm acetylenic bonds, thiab siab synthesis. Lub invention combines lub functional qab zib-muaj polymer nrog lub polyethersulfone membrane, uas muaj ib tug ruaj khov qauv, yuav hloov lub hydrophobicity ntawm daim nyias nyias, endows cov ntaub ntawv membrane nrog zoo heev hydrophilicity, anti-fouling khoom, adsorption muaj peev xwm thiab kev pab cuam lub neej, thiab ho. txhim kho polyethersulfone membrane. Hydrophilization thiab reusability ntawm sulfone daim nyias nyias.
2) Kev npaj ntawm lithium ion imprinted polyethersulfone composite daim nyias nyias, uas belongs rau cov kev ua haujlwm ntawm kev npaj cov khoom siv. Polyethersulfone membrane yog siv los ua cov khoom siv hauv qab daus, lithium ion yog siv los ua qauv, 12-crown-4-ether yog siv los ua qhov chaw sib txuas, methacrylic acid yog siv los ua haujlwm monomer, ethylene glycol dimethacrylate yog siv los ua tus neeg sawv cev crosslinking. , azo Diisobutyronitrile yog siv los ua tus thawj coj, ua ke nrog dopamine nto hloov kho tshuab, silica nanocomposite technology, thiab imprinted polymerization technology los npaj lithium ion imprinted polyethersulfone composite membrane. Qhov kev sim adsorption zoo li qub yog siv los kawm txog qhov sib npaug adsorption, adsorption kinetics thiab xaiv kev paub txog kev ua tau zoo ntawm kev npaj lithium ion-imprinted polyethersulfone composite membrane; Cov kev xaiv permeation sim yog siv los kawm txog kev npaj lithium-ion imprinted polyethersulfone composite daim nyias nyias mus rau Permeability ntawm ions (lithium ions) thiab non-target ions (sodium thiab poov tshuaj ions). Lub lithium ion imprinted polyethersulfone composite membrane npaj los ntawm lub invention muaj siab tshwj xeeb adsorption muaj peev xwm thiab kev lees paub thiab kev sib cais muaj peev xwm rau lithium ions.
