Poly(dimethyldiallylammonium chloride), feem ntau hu ua polyDADMAC lossis polyDDA, tau dhau los ua ib qho polymer hloov pauv hauv kev tshawb fawb thiab thev naus laus zis niaj hnub no. Cov polymer ntau yam no tau siv dav hauv ntau yam lag luam, los ntawm kev kho dej khib nyiab mus rau cov tshuaj pleev ib ce thiab cov khoom siv tu tus kheej.
Ib qho ntawm cov ntawv thov tseem ceeb ntawm polyDADMAC yog ua cov coagulants rau kev kho dej. Cov polymer's positive-charged quaternary ammonium pawg khi nrog cov khoom me me uas tsis zoo hauv dej, tsim cov khoom loj dua thiab hnyav dua uas tuaj yeem tshem tawm yooj yim los ntawm kev tso dej lossis lim dej. Qhov no ua rau nws yog lwm txoj hauv kev zoo thiab pheej yig rau cov coagulants ib txwm muaj xws li alum thiab ferric chloride.
Ntxiv rau kev kho dej, polyDADMAC kuj pom muaj kev siv hauv kev lag luam ntawv, qhov chaw uas nws siv los ua tus pab khaws cia thiab tus neeg sawv cev qhuav kom txhim kho qhov zoo ntawm daim ntawv thiab txo cov tshuaj ua ntawv xav tau. Lub polymer's cationic charge ua rau nws zoo ntawm kev khi nrog cov ntoo fibers thiab cov fillers uas raug them tsis zoo hauv daim ntawv pulp, txhim kho daim ntawv lub zog thiab kev khaws cia ntawm cov fillers.
PolyDADMAC kuj tseem siv rau hauv kev lag luam saib xyuas tus kheej thiab kev lag luam pleev kom zoo nkauj ua tus neeg sawv cev txias thiab emulsifier. Nws cov nqi cationic ua rau nws zoo rau kev khi nrog cov plaub hau thiab daim tawv nqaij uas muaj cov nqi tsis zoo, txhim kho cov qauv thiab kev xav ntawm cov khoom xws li tshuaj zawv plaub hau, tshuaj pleev, thiab tshuaj pleev.
Ua ib tug thawj coj hauvkev tsim khoom polyDADMAC, peb lub tuam txhab cog lus tias yuav muab cov khoom lag luam thiab cov kev pabcuam zoo rau peb cov neeg siv khoom thoob plaws kev lag luam. Peb nkag siab txog qhov tseem ceeb ntawm cov tshuaj coagulants txhim khu kev qha thiab ua haujlwm tau zoo hauv kev kho dej thiab siv zog los muab cov kev daws teeb meem pheej yig uas ua tau raws li cov kev xav tau tshwj xeeb ntawm peb cov neeg siv khoom. Peb pab neeg ntawm cov kws tshaj lij kuj tseem niaj hnub tshawb nrhiav cov ntawv thov tshiab ntawm polyDADMAC hauv cov lag luam tshiab, kom ntseeg tau tias peb nyob ntawm pem hauv ntej ntawm kev tsim kho tshiab.
Xaus lus, cov polymer PDADMAC uas siv tau ntau yam no tab tom hloov pauv kev lag luam nrog nws cov kev siv ntau yam, suav nrog cov tshuaj coagulants rau kev kho dej, cov neeg sawv cev khaws cia hauv kev lag luam ntawv, thiab cov neeg sawv cev txias hauv cov khoom siv tu tus kheej. Raws li qhov kev thov rau cov polymer no txuas ntxiv loj hlob, peb zoo siab uas tau nyob rau pem hauv ntej ntawm nws txoj kev loj hlob thiab tos ntsoov yuav tshawb nrhiav cov ntawv thov tshiab dua yav tom ntej.
Lub sijhawm tshaj tawm: Lub Peb Hlis-13-2023