Cov tuam txhab kho dej xaiv cov khoom siv silicon carbide (SiC) feem ntau vim lawv qhov kev tiv thaiv rau cov xwm txheej hnyav, kev ua neej ntev, kev ua haujlwm siab, thiab kev saib xyuas yooj yim, ua rau lawv tsim nyog rau cov teeb meem nyuaj rau kev kho dej khib nyiab thaum txo cov nqi ua haujlwm ntev -. Tshwj xeeb, cov laj thawj tuaj yeem raug sau tseg hauv 6 lub ntsiab lus hauv qab no:
1. Kev ruaj ntseg tshuaj zoo tshaj
Silicon carbide daim nyias nyias yog cov tshuaj tsis muaj zog thiab tuaj yeem tiv taus ntev - lub sij hawm corrosion los ntawm cov kua qaub, muaj zog alkalis, thiab muaj zog oxidants. Piv txwv li, nyob rau hauv kev kho mob ntawm high -concentration acidic thiab alkaline khib nyiab (xws li tshuaj lom neeg thiab electroplating khib nyiab) thiab tshuaj tua kab mob / oxidation txheej txheem uas muaj oxidants (xws li hydrogen peroxide thiab sodium hypochlorite), cov tsoos organic membranes (xws li PVDF thiab PES daim nyias nyias) yog yooj yim corroded thiab aged, thaum siliconized daim nyias nyias yog ruaj khov.
2. Zoo heev High -Tub kub Resistance
Silicon carbide daim nyias nyias tuaj yeem ua haujlwm rau lub sijhawm ntev ntawm qhov kub siab tshaj 100℃lossis siab dua thiab tuaj yeem tiv taus siab dua -kub kom tsis muaj menyuam (xws li chav ua kom tsis muaj menyuam). Qhov txiaj ntsig no ua rau nws tsim nyog rau kev kho cov dej khib nyiab siab (xws li dyeing thiab papermaking ua cov dej khib nyiab). High-kub backwashing kuj tshem tawm cov kab mob ntawm daim tawv nqaij kom zoo dua qub, txhim kho kev tu kom zoo thiab daim nyias nyias flux rov qab.
3. Zoo heev Mechanical Strength thiab Antifouling Capacity
Silicon carbide membranes have high hardness and a dense structure, possessing extremely strong resistance to wear, fracture, and biofouling. Thaum kho cov dej khib nyiab uas muaj cov khib nyiab loj thiab cov khoom me me (xws li cov tshuaj thee thiab cov khib nyiab pov tseg), lawv tsis yooj yim khawb lossis txhaws; lawv cov nplaim du kuj txo cov pa paug adsorption, txo cov membrane fouling tus nqi, thiab ncua lub voj voog tu.
4. High Flux thiab ruaj khov kev sib cais
Silicon carbide membranes muaj qhov porosity siab thiab cov pore loj faib, ua rau cov dej ntws tawm deb tshaj li cov organic thiab ceramics nyob rau hauv tib yam kev mob. Txawm tias nyob rau hauv siab -turbidity, siab - viscosity dej khib nyiab ib puag ncig, lawv muaj kev ruaj ntseg pom kev ua tau zoo, txo tus naj npawb ntawm cov membrane modules yuav tsum tau thiab txo cov hneev taw thiab cov cuab yeej pib nqis peev.
5. Lub neej ua haujlwm ntev thiab cov nqi kho mob tsawg
Vim nws cov corrosion kuj, siab -kub tsis kam, thiab fouling tsis kam, silicon carbide daim nyias nyias muaj lub neej kev pab cuam ntawm ntau tshaj 10 xyoo, deb tshaj ntawm cov organic membranes (2-5 xyoos) thiab zoo tib yam ceramic membranes (5-8 xyoo). Qhov kev pab cuam lub neej ntev dua no txo qhov zaus ntawm kev hloov daim nyias nyias, thaum tseem txo cov kev siv tshuaj ntxuav cov neeg ua haujlwm thiab qhov zaus ntawm kev ntxuav, txo cov nqi khiav haujlwm ntev.
6. Tsim nyog rau Kev Sib Tw Kev Kho Dej
Silicon carbide daim nyias nyias yog qhov tshwj xeeb tshaj yog tsim nyog rau kev kho cov xwm txheej uas cov txheej txheem txheej txheem txheej txheem tawm tsam, xws li siab - cov dej khib nyiab organic, siab - dej qab ntsev, thiab cov dej khib nyiab pov tseg. Piv txwv suav nrog xoom- tso tawm ntawm cov dej khib nyiab pov tseg, kev kho mob sib sib zog nqus ntawm cov dej khib nyiab, thiab kev npaj dej ultrapure rau kev lag luam semiconductor. Cov tuam txhab kho dej siv cov cuab yeej siv silicon carbide membrane tuaj yeem nthuav dav lawv txoj kev lag luam thiab lees txais tus nqi siab dua - ntxiv, nyuaj rau kev kho dej.