Cov Lus Tseem Ceeb: Poly dimethyl diallyl ammonium chloride, PDMDAAC, PDADMAC, PolyDADMAC
Hauv lub ntiaj teb muaj yeeb yuj ntawm cov khoom siv tshuaj lom neeg txhua hnub, ntau yam khoom xyaw, zoo li cov xov tsis pom, maj mam ua rau daim duab zoo nkauj ntawm peb cov kev saib xyuas tawv nqaij txhua hnub.Polydimethyl diallyl ammonium chloride (PDADMAC)yog ib yam khoom zoo li no—txawm hais tias nws tsis "tshwm sim" ncaj qha rau ntawm cov ntawv lo rau cov khoom siv pleev ib ce, nws tau sib xyaw ua ke tob rau hauv cov khoom siv saib xyuas plaub hau hauv daim ntawv polymer, ua ib qho khoom pab txhawb rau cov plaub hau thiab tawv nqaij du. Yog li, cov tshuaj no puas muaj kev nyab xeeb tiag tiag los kov? Cov lus teb nyob rau hauv nws txoj kev sib raug zoo me me nrog cov khoom siv pleev ib ce.
Cov qauv tshuaj ntawm Poly dimethyl diallyl ammonium chloride muab nws ib qho tshwj xeeb "affinity." Ua ib qho cationic polymer, nws nqa ib qho them zoo thiab tuaj yeem yooj yim nqus cov fibers lossis cov khoom me me uas muaj nqi tsis zoo. Hauv kev lag luam tshuaj pleev ib ce, cov khoom no txhais ua cov haujlwm ua tau zoo: thaum ntxiv rau hauv tshuaj zawv plaub hau, nws neutralizes hluav taws xob static tsim los ntawm kev sib txhuam, ua rau cov plaub hau du thiab tswj tau es tsis txhob frizzy; hauv da dej gel, nws ua haujlwm zoo li ib daim zaj duab xis tiv thaiv tsis pom, txo cov dej noo poob thiab tawm hauv daim tawv nqaij zoo li silky du. Cov nyhuv no tsis yog khawv koob, tab sis theej los ntawm qhov yooj ywm thiab dej solubility ntawm nws cov saw molecular - nws disperses sai sai hauv dej, tsim ib qho kev daws teeb meem uas maj mam coat txhua strand ntawm cov plaub hau lossis daim tawv nqaij yam tsis tawm hauv qhov kev xav nplaum. Xav txog qhov ci ntsa iab ntawm koj cov plaub hau tom qab da dej; nws feem ntau yog vim muaj kev ua haujlwm ntsiag to ntawm Poly dimethyl diallyl ammonium chloride.
Txawm li cas los xij, "kev sib cuag nyab xeeb" ntawmPolyDADMACtsis yog ib qho tsis muaj mob. Kev tswj cov khoom xyaw hauv cov tshuaj pleev ib ce zoo li kev ua kom sib npaug zoo, uas xav tau ob qho tib si kev ua tau zoo thiab kev zam kev pheej hmoo.PolyDADMACnws tus kheej ruaj khov, tsis cuam tshuam rau pH hloov pauv, thiab tsis kub hnyiab, muab kev lees paub yooj yim rau nws daim ntawv thov hauv cov khoom siv tshuaj txhua hnub. Tab sis qhov tseem ceeb nyob rau hauv qhov teeb meem ntawm nws "cov monomers seem." Thaum lub sijhawm polymerization, cov nqi me me ntawm acrylamide monomers yuav tsis teb tag nrho, thiab acrylamide nws tus kheej muaj peev xwm ua rau khaus. Yog li ntawd, kev tswj hwm nruj ntawm cov nqi seem yog qhov yuav tsum tau ua ua ntej rau kev nyab xeeb. Piv txwv li, hauv cov tshuaj zawv plaub hau lossis tshuaj pleev, qhov ntau ntawm Poly dimethyl diallyl ammonium chloride ntxiv yuav tsum tau tswj hwm kom meej meej kom ntseeg tau tias qhov concentration ntawm monomer hauv cov khoom qis dua qhov kev nyab xeeb, zam kev ua rau tawv nqaij rhiab heev. Qhov kev tswj hwm zoo no hloov pauvPolyDADMAClos ntawm cov khoom siv raw khoom lag luam mus rau cov khoom xyaw niaj hnub uas cov neeg siv khoom siv tau nrog kev thaj yeeb nyab xeeb.
Los ntawm qhov kev xav dav dua, "kev nyab xeeb ntawm kev sib cuag" ntawmPolyDADMACkuj tseem pom tseeb hauv nws txoj kev phooj ywg ib puag ncig. Nws yooj yim yaj hauv dej, tsis tsim cov gels, thiab tiv taus cov chloride ions, txhais tau tias nws tsis zoo li yuav sib sau lossis tso cov tshuaj lom neeg hauv kev kho dej khib nyiab lossis ib puag ncig ntuj. Piv rau qee cov tshuaj ntxiv,PolyDADMACmuaj kev puas tsuaj zoo dua qub, txo cov kev cuam tshuam rau ib puag ncig mus sij hawm ntev. Thaum peb tham txog "kev sib cuag ncaj qha," peb tsis yog hais txog kev sib cuag luv luv nrog daim tawv nqaij lossis plaub hau xwb, tab sis kuj suav nrog nws lub neej tag nrho lub voj voog ntawm ib puag ncig - los ntawm kev tsim khoom mus rau kev pov tseg, lub tswv yim tsim ntawmPolyDADMACyeej ib txwm nyiam qhov muaj kev pheej hmoo tsawg thiab kev sib haum xeeb siab. Hauv kev xaus,PolyDADMACtsis yog ib qho kev txwv rau "kev sib cuag ncaj qha," tab sis, los ntawm kev tsim cov tshuaj science thiab kev cai nruj, nws tau dhau los ua tus neeg saib xyuas tseem ceeb thiab mos mos hauv kev pleev kom zoo nkauj. Zoo li tus kws kos duab uas tsis pom, nws siv cov txhuam molecular los kos duab sib haum xeeb ntawm kev zoo nkauj thiab kev nyab xeeb. Lub sijhawm tom ntej koj nyiam cov plaub hau du lossis daim tawv nqaij noo, nco ntsoov qhov kev pab cuam ntsiag to ntawm cov tshuaj lom neeg no - ua rau kev saib xyuas txhua hnub ua haujlwm tau zoo thiab muaj kev nyab xeeb.
Lub sijhawm tshaj tawm: Lub Ob Hlis-06-2026