Cov khoom hloov kho ntawm polyacrylamide siv los tuav thiab tso dej hauv cov ntaub ntawv yog feem ntau hloov cov khoom ntawm polyacrylamide, suav nrog anionic polyacrylamide (APAM), cationic polyacrylamide (CPAM) thiab amphoteric polyacrylamide (AmPAM), nrog rau cov txheeb ze molecular loj ntawm 2 lab ~ 4 lab. .
Feem ntau, APAM tsim cov txheej txheem nyuaj nrog lwm cov cationic compounds los ua kom muaj zog tuav-pab cuam tshuam.Piv txwv li, kev sib txuas nrog txhuas sulfate tuaj yeem ua rau APAM sib raug zoo nrog fibers, nplua fibers, muab tub lim, thiab lwm yam., yog li txhim kho kev tuav ntawm cov fibers zoo thiab muab tub lim.Nco tus nqi.
CPAM yog ib qho ntawm cov khoom siv khaws cia ntau tshaj plaws hauv papermaking, thiab cov khoom uas muaj qhov hnyav molecular thiab tsis tshua muaj nqi yog feem ntau siv.Nws tus nqi yog qhov sib txawv ntawm cov fiber ntau, thiab nws tuaj yeem siv ib leeg lossis ua ke nrog bentonite, anion, thiab lwm yam, ua rau flocculation ntawm daim ntawv los ntawm kev sib txuas ntawm cov khoom siv hauv daim ntawv, thiab tuaj yeem ua rau kom tus nqi khaws cia ntawm cov ntaub ntawv. daim ntawv muab tub lim thiab txhawb nqa Cov concentration ntawm cov dej dawb hauv qab net yog txo.Thaum CPAM thiab cov nqi tsis zoo bentonite yog siv los tsim cov khoom siv khaws cia thiab cov kua dej, qhov loj ntawm cov ntaub ntawv ntawm cov ntaub ntawv tsim los ntawm kev ntxiv CPAM yog qhov loj heev, thiab tom qab raug rau siab shear quab yuam tom qab dhau los ntawm lub pulp twj tso kua mis thiab. Lwm cov khoom siv, cov flocs tau tawg mus rau hauv cov khoom me me, thiab qhov sib ntxiv ntawm cov khoom tsis zoo bentonite nyob rau lub sijhawm no yuav rov txuas cov khoom me me thiab tsim cov flocs uas me dua cov flocs Ameslikas tsim los ntawm CPAM.Yog li ntawd, cov ntaub ntawv khaws cia ntawm cov ntaub ntawv tau raug txhim kho, thiab qhov sib npaug thiab cov dej ntws ntawm cov ntawv tau zoo tuaj.
Thaum AMPAM siv los ua kev tuav pov hwm thiab tso dej, cov pab pawg anionic tshem tawm cov khib nyiab anionic hauv cov ntaub so ntswg, thiab cov cationic pawg ua ke nrog cov fibers thiab cov fibers zoo.Yog li, qhov khaws cia tus nqi ntawm cov fibers zoo zoo tuaj.
Post lub sij hawm: Mar-01-2023