Emulsifiers, tseem hu ua emulsifying cov neeg ua haujlwm pab txhawm rau txhim kho lub emulsion los ntawm kev txo qhov cuam tshuam ntawm lub ntsej muag lossis lub zog saum npoo ntawm ob lub kua ua lub emulsion los ntawm kev tsim ib zaj duab xis ntawm nruab nrab thiab tshem tawm cov khoom. Emulsifying cov neeg ua haujlwm yog cov saw hlau ntev nrog cov pawg polar.
Yuav ua li cas tus neeg sawv cev emulsifying tuaj yeem txhim kho qhov ruaj khov ntawm emulsion?
Emulsion tuaj yeem ruaj khov los ntawm nce qhov kev tawm tsam ntawm cov theem tawg piv txwv li, los ntawm kev ua kom cov electrostatic repulsion (uas yog qhov ntev) los yog steric repulsion (ntu luv).
Yuav ua li cas emulsifying cov neeg ua haujlwm ruaj khov ntawm emulsion muab piv txwv ntawm emulsifier rau cov roj hauv dej?
Surfactants adsorb ntawm interface ntawm cov roj thiab dej, yog li txo qhov nro ntawm qhov chaw. Ib qho emulsifier yog ib qho surfactant uas stabilizes emulsions. Emulsifiers lub tsho tiv no cov tee dej hauv ib qho emulsion thiab tiv thaiv kom tsis txhob tuaj ua ke, lossis coalescing.
Yuav ua li cas emulsifying cov neeg ua haujlwm hauv emulsion?
Emulsions ruaj khov los ntawm kev ntxiv cov emulsifier lossis emulsifying tus neeg sawv cev. Cov tshuaj no muaj ob qho tib si hydrophilic thiab lipophilic ib feem hauv lawv cov qauv tshuaj. … Ntxiv rau qhov kev tiv thaiv no, emulsifiers stabilize lub emulsion los ntawm kev txo cov kev sib tshuam ntawm lub cev.
Vim li cas emulsifying tus neeg sawv cev siv hauv emulsion?
Ib tug emulsifying tus neeg sawv cev (emulsifier) yog cov khoom xyaw ntog uasadsorbs ntawm cov tshiab tsim cov roj-dej interface thaum lub sij hawm npaj emulsion, thiab nws tiv thaiv cov tee tsim tshiab tawm tsam tam sim recoalescence.
