Polyacrylamide: Ib qho Polymer Multifunctional hauv Kev Lag Luam Niaj Hnub
Polyacrylamide (PAM), yog ib hom polymer uas yaj tau hauv dej thiab muaj lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam. Nws yog ib hom polymer uas tau los ntawm acrylamide monomers, thiab hauv kev lag luam, cov polymers uas muaj ntau tshaj 50% acrylamide monomer structural units feem ntau hu ua polyacrylamide.
PAM muaj peev xwm muab faib ua cov tsis yog ionic, anionic, cationic, thiab amphoteric raws li nws cov yam ntxwv ionic. Non-ionic PAM tsis muaj cov pab pawg ionizable hauv nws cov saw molecular, anionic PAM muaj cov pab pawg tsis muaj nqi, cationic PAM muaj cov pab pawg them nqi zoo, thiab amphoteric PAM muaj ob qho tib si tsis muaj nqi thiab cov pab pawg them nqi zoo.
Cov txheej txheem tsim cov PAM suav nrog kev ua kom cov kua dej sib xyaw ua ke, kev ua kom cov emulsion sib xyaw ua ke rov qab, thiab kev ua kom cov polymerization pib los ntawm kev siv hluav taws xob. Kev ua kom cov kua dej sib xyaw ua ke yog txoj kev qub tshaj plaws thiab siv dav tshaj plaws vim nws muaj kev nyab xeeb thiab tus nqi qis. Kev ua kom cov emulsion sib xyaw ua ke rov qab yog qhov nyiam rau cov ntawv thov ua haujlwm siab, thiab kev ua kom cov polymerization pib los ntawm kev siv hluav taws xob yog ib txoj kev tshiab uas tuaj yeem tsim cov PAM ntawm qhov kub thiab txias yam tsis muaj cov tshuaj pib.
PAMmuaj cov khoom zoo heev rau lub cev thiab tshuaj. Nws muaj cov dej yaj tau zoo thiab tuaj yeem yaj rau hauv dej txias kom ua tau cov kua nplaum. Nws cov saw hlau hnyav molecular siab tuaj yeem tsim "choj" ntawm cov khoom me me uas nqus tau, ua rau cov khoom me me uas raug tshem tawm hauv dej sib sau ua ke thiab sib sau ua ke. Tsis tas li ntawd, PAM muaj cov khoom ua kom tuab, nplaum, thiab txo qhov hnyav.
Hais txog kev siv, PAM siv dav hauv kev kho dej, kev khawb roj av, kev ua ntawv, thiab lwm yam lag luam. Hauv kev kho dej, nws tuaj yeem siv ua flocculant los koom tes nrog cov coagulants xws li PAC los ua kom cov dej phwj hauv nroog, cov dej khib nyiab hauv kev lag luam, thiab cov dej khib nyiab ntxuav thee. Hauv kev lag luam roj av, nws yog siv ua tus neeg sawv cev dej nyab los txhim kho kev rov qab roj. Hauv kev lag luam ua ntawv, nws tuaj yeem txhim kho tus nqi khaws cia ntawm cov khoom sau thiab cov xim thiab txhim kho lub zog ntawm daim ntawv.
Txawm li cas los xij, thaum siv PAM, yuav tsum muaj qee qhov kev ceev faj. Piv txwv li, nws yuav tsum tau yaj rau hauv dej huv, thiab qhov ceev ntawm kev sib tov yuav tsum tsis txhob ceev dhau kom tiv thaiv cov saw hlau molecular kom tsis txhob tawg. Qhov ntau npaum li cas yuav tsum tau txiav txim siab los ntawm kev sim me me, vim tias kev siv ntau dhau yuav ua rau cov dej khov thiab cuam tshuam rau kev tso dej.
Zuag qhia tag nrho, PAM yog ib qho polymer uas siv tau ntau yam thiab tseem ceeb. Nrog rau kev txhim kho tas mus li ntawm kev lag luam, nws cov kev siv yuav dav dua, tab sis tib lub sijhawm, peb kuj yuav tsum tau them sai sai rau nws txoj kev siv kom muaj kev nyab xeeb thiab kev cuam tshuam rau ib puag ncig.
Peb yog cov neeg muag khoom tseem ceeb hauv Suav teb, rau tus nqi lossis ntau cov ntaub ntawv txais tos hu rau peb ntawm:
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