Nrog rau kev loj hlob thiab kev siv ntawm cov dej-raws cov xim yas, kev xaiv ntawm cov xim looj xim looj cov xim huv. Kev hloov kho ntawm rheology thiab viscosity tswj ntawm cov xim pleev xim kom zoo, nruab nrab thiab qis shear tus nqi. Xaiv thiab cov ntawv thov ntawm cov xim tuab rau cov xim pleev xim kom zoo thiab cov xim yas hauv cov duab emulsion (acrylic-acrylic, thiab lwm yam.
Lub luag haujlwm tseem ceeb ntawm cov xim huv nyob hauv cov xim looj cov xim tsev, uas yog ib qho tseem ceeb ntawm cov tsos thiab kev ua tau zoo ntawm cov xim pleev xim. Kuj tseem xav txog cov nyhuv ntawm viscosity ntawm cov xim pigicitation, ntsuas, thiab sag ntawm cov yeeb yaj duab saum ntuj thaum lub ntsej muag ntsug. Cov no yog cov teeb meem zoo uas cov tuam ntxhab feem ntau siv rau hauv tus account.
Qhov sib xyaw ntawm cov txheej cuam tshuam rau kev ntseeg ntawm cov xim huv ntawm cov xim huv, thiab cov tshuaj uas zoo sib xws hauv cov xim yas. Txawm li cas los xij, kev kho tau ntau yog txwv thiab tus nqi yog siab. Lub viscosity ntawm cov xim looj kua ntswg feem ntau yog hloov kho los ntawm cov thickeners. Feem ntau siv cov thickeners yog: cellulose ether thickeners, thiab lwm yam. Hydroxic aslotyl Paib muaj nqi yog loj. Lub Hydrophobic lub ntsiab ntawm cellulose thickener yog txuam nrog cov dej hiav txwv ib puag ncig, uas nce cov kua dej ntawm cov polymer nws tus kheej. Qhov chaw pub dawb ntawm cov khoom yog txo. Lub viscosity ntawm cov kab ke nce ntxiv, thiab tus qauv sib txuas nrog cov qauv network yog tsim ntawm cov xim thiab emulsion emulsion. Cais cov pigments los ntawm txhua lwm yam, emulsion hais tsis tshua muaj adsorb.
Lub sij hawm ncua: Nov-02-2022