Dispersant yog ib tus neeg sawv cev cuam tshuam nrog ob qho sib txawv ntawm Liplophilicity thiab hydrophilicity nyob rau hauv molecule.
Kev Rho Tawm no yog hais txog qhov sib tov tsim los ntawm kev dispersion ntawm ib qho tshuaj (lossis ntau cov tshuaj) mus rau lwm cov khoom hauv cov ntawv.
Dispersants tuaj yeem uniformly cov khoom khov kho thiab ua kua ntawm inorganic thiab kuj tsis yooj yim kom yaj, ua cov amphiphilic reagents yuav tsum muaj kev ncua. Houshuan Tshuaj R & D thiab ntau lawm cov dej muaj kev sib ntxiv thiab cov roj-roj av ntxiv hauv ntau qhov kev lag luam, muaj feem xyuam surfactant pawg.
Qhov kev rho tawm cov txheej txheem faib ua: Kev daws, colloid thiab ncua (emulsion). Txog kev daws teeb meem, solute yog ib tug dispersant thiab cov kuab tshuaj yog ib qho tsis sib luag. Piv txwv li, hauv NaCL daws, tus dispersant yog nacl, thiab lub dispersant yog dej. Tus dispersant hais txog cov khoom tawg rau hauv cov nplais hauv qhov kev rho tawm. Lwm cov tshuaj yog hu ua dispersed cov khoom.
Cov haujlwm ntawm kev siv cov xim muaj cov xim tsis txaus ntseeg yog li hauv qab no:
1. Siv cov ntub dej kom txo lub sijhawm thiab lub zog yuav tsum ua kom tiav cov txheej txheem sib xws, ua kom cov khoom lag luam uas tsis sib xws, thiab kho qhov chaw ntawm cov xim ntawm cov xim.
2. Txo cov kev cuam tshuam interfacial ntawm cov kua ua kua thiab kua. Dispersants tseem surfactants. Dispersants yog anionic, cationic, tsis yog-ionic, amphoter thiab polymeric. Ntawm lawv, hom anionic yog siv ntau tshaj plaws.
3. Dispersant tus neeg sawv cev uas tuaj yeem txhim kho qhov tsis txaus siab ntawm cov khoom siv ua kua lossis kua.
Lub sij hawm Post: Lub Yim Hli 03-2022