Kev xaiv cov ntaub ntawv rau hollow fiber ultrafiltration membranes yog qhov tseem ceeb ntawm kev txiav txim siab lawv cov kev sib cais, ua haujlwm ntev, thiab cov xwm txheej siv tau. Nws yuav tsum tau ua tib zoo xav txog cov khoom siv physicochemical zog, kev ua haujlwm, thiab kev lag luam kom ua tiav qhov tseeb ntawm daim nyias nyias thiab daim ntawv thov.
Organic polymer cov ntaub ntawv tseem ceeb hauv kev ua lag luam vim lawv cov kev hloov pauv tau yooj yim thiab cov nqi tswj tau. Polysulfone (PSF) boasts siab mechanical zog, zoo heev tshuaj stability, thiab ib tug dav kub ntau yam ({10}}10℃rau 80℃). Nws pom zoo ua haujlwm rau feem ntau cov kua qaub, alkalis, thiab oxidants, thiab feem ntau yog siv los ua cov txheej txheej txheej membrane, haum rau kev kho dej thiab kev kho dej khib nyiab. Polyethersulfone (PES) pom muaj zog hydrophilicity thiab siab flux; nws cov yam ntxwv tsis zoo ntawm cov protein adsorption ua rau nws zoo heev hauv thaj chaw uas yuav tsum tau ua kom huv huv, xws li biopharmaceuticals (xws li, tshuaj tiv thaiv purification) thiab zaub mov thiab dej haus (xws li, kua txiv kom meej). Polyacrylonitrile (PAN) qhia tau zoo heev hydrophilicity thiab antifouling muaj peev xwm, ua rau nws haum rau kho oily cov dej khib nyiab thiab tsawg -turbidity dej qhov chaw. Cellulose acetate (CA) muaj biocompatibility zoo heev thiab yog ib zaug siv dav hauv kev tsim tshuaj sib cais, tab sis nws qhov kub tsis muaj zog thiab pH adaptability tau ua rau nws hloov maj mam hloov los ntawm cov ntaub ntawv hloov. Nyob rau hauv xyoo tas los no, hloov kho polyvinylidene fluoride (PVDF), los ntawm kev sib xyaw los yog ntog grafting los txhim kho hydrophilicity, thiab muaj kev ruaj ntseg ntev ntawm cov kua qaub thiab alkalis thiab chlorine oxidation, tau dhau los ua ib qho kev xaiv hauv high-end water treatment fields.
Inorganic materials, represented by ceramics (such as alumina and zirconium oxide), possess ultra-high mechanical strength, high temperature resistance (>200 degree), thiab muaj zog corrosion kuj, tswj kev ruaj ntseg nyob rau hauv huab cua xws li siab -kub fermentation broth kho thiab purification ntawm muaj zog acid / alkali media. Txawm li cas los xij, lawv cov nqi tsim khoom siab thiab brittleness txwv lawv qhov loj -scale saws.
Kev xaiv cov khoom siv yuav tsum tau ua kom haum rau cov xwm txheej tshwj xeeb: cov ntaub ntawv organic ua tau zoo tshaj plaws hauv kev yooj yim thiab tus nqi -kev ua tau zoo, dominating ib txwm siv dej kho thiab ua zaub mov; inorganic membranes, ntawm qhov tod tes, yog positioned nyob rau hauv tshwj xeeb teb vim lawv durability. Nyob rau hauv lub neej yav tom ntej, optimizing cov khoom vaj tse los ntawm technologies xws li nanocompositing thiab biomimetic kev hloov kho yuav ntxiv nthuav daim ntawv thov ciam teb ntawm hollow fiber ultrafiltration membranes, muab kev daws zoo dua rau kev sib cais ntawm complex systems.
