Rau cov kua Newtonian, qhov pom tseeb viscosity yog tas mus li, thiab sib npaug rau Newtonian viscosity ntawm cov kua, tab sis rau cov dej tsis-Newtonian, qhov pom tseeb viscosity nyob ntawm tus nqi shear.
Koj pom li cas pom meej viscosity ntawm cov kua uas tsis yog-Newtonian?
Pom meej (shear) viscosity: Pom meej, lossis shear, viscosity yog hais txog kev sib raug zoo ntawm viscosity thiab shear rate. Hauv Newtonian kua, tus nqi no tsis hloov, tab sis nrog cov kua uas tsis yog-Newtonian, pom meej viscosity cuam tshuam ncaj qha los ntawm tus nqi shear. Nws tuaj yeem suav tau los ntawm faib cov kev ntxhov siab los ntawm tus nqi shear.
Qhov twg siv tau rau kev txiav txim siab viscosity ntawm non-Newtonian kua?
Qhov tseeb, lub capillary viscometer yog thawj viscometer. Cov cuab yeej no tseem yog qhov feem ntau siv rau kev ntsuas viscosity rau cov dej tsis-Newtonian vim muaj cov yam ntxwv xws li kev yooj yim, raug, zoo sib xws rau cov txheej txheem ntws zoo li extrusion tuag thiab tsis muaj qhov chaw dawb.
Dab tsi yog qhov viscosity ntawm cov kua uas tsis yog-Newtonian?
Ib yam tsis yog-Newtonian kua yog kua dej uas tsis ua raws Newton txoj cai ntawm viscosity, piv txwv li, tas li viscosity tsis muaj kev ntxhov siab. Hauv cov kua dej uas tsis yog-Newtonian, viscosity tuaj yeem hloov pauv thaum nyob rau hauv quab yuam rau cov kua ntau dua lossis ntau dua. Ketchup, piv txwv li, dhau los ua khiav thaum shaken thiab yog li cov kua uas tsis yog-Newtonian.
Qhov twg hauv qab no yog cov kua dej uas tsis yog-Newtonian?
Cov kua dej uas qhov kev ntxhov siab tsis sib xws tsis cuam tshuam rau qhov kev sib tsoo yog hu ua non-Newtonian kua piv txwv suav nrog slurries thiab colloidal suspensions, polymer daws, ntshav, muab tshuaj txhuam, thiab ncuav mog qab zib batter.
