Amphiphilic xwm
Emulsifiers yog cov tshuaj amphiphilic sib xyaw nrog polar lossis hydrophilic (xws li dej-soluble) moieties thiab tsis-polar (ie hydrophobic lossis lipophilic) moieties. Emulsifiers uas muaj ntau dua soluble hauv dej (ntawm qhov tsis sib xws, tsawg soluble hauv cov roj) feem ntau tsim cov roj hauv cov tshuaj pleev dej, thaum cov emulsifiers uas muaj ntau dua hauv cov roj yuav tsim cov dej hauv cov roj pleev.
Influence rau stability ntawm lotion
Emulsifier tuaj yeem ua rau kom muaj kev ruaj ntseg ntawm cov tshuaj pleev ib ce los ntawm ntau yam txheej txheem thaum lub sij hawm emulsification txheej txheem. Piv txwv li, los ntawm kev txo qhov kev sib tshuam ntawm ob theem (txoj kev xav ntawm qhov nro); Tsim ib zaj duab xis nyias ntawm ib theem los tsim cov pob me me (repulsion theory); Emulsifiers (hydrocolloids) xws li arabic gum thiab tragacanth gum, nrog rau PEG (los yog polyethylene glycol), glycerol, thiab lwm yam polymers (xws li CMC carboxymethyl cellulose), tswj kev ruaj ntseg ntawm dispersed theem microspheres nyob rau hauv ncua kev kawm ntawv los ntawm kev ua kom lub viscosity ntawm lub nruab nrab (viscosity hloov).