Yaj hauv dej thiab qee cov kuab tshuaj organic tuaj yeem yaj hauv dej txias, nws qhov siab tshaj plaws tsuas yog txiav txim siab los ntawm viscosity, solubility hloov pauv nrog viscosity, qhov qis dua qhov viscosity, qhov ntau dua qhov solubility.
Kev tsis kam ntsev: Hydroxypropyl methylcellulose rau kev tsim kho yog cov cellulose ether uas tsis yog ionic thiab tsis yog polyelectrolyte, yog li nws ruaj khov hauv cov kua dej thaum muaj cov ntsev hlau lossis cov electrolytes organic, tab sis kev ntxiv ntau dhau ntawm electrolytes tuaj yeem ua rau cov kua nplaum thiab nag lossis daus.
Kev ua haujlwm ntawm qhov chaw: vim yog qhov ua haujlwm ntawm qhov chaw ntawm cov kua dej, nws tuaj yeem siv los ua tus neeg sawv cev tiv thaiv colloidal, emulsifier thiab dispersant.
Thaum cua sov mus rau qee qhov kub, cov kua dej ntawm hydroxypropyl methylcellulose rau kev tsim cov thermal gel ua rau opaque, gels, thiab precipitates, tab sis thaum nws txias tas li, nws rov qab mus rau lub xeev kua qub, thiab qhov condensation no tshwm sim. Qhov kub ntawm cov kua nplaum thiab nag feem ntau nyob ntawm lawv cov roj nplua nyeem, cov neeg sawv cev suspending, cov colloids tiv thaiv, emulsifiers, thiab lwm yam.
Cov yam ntxwv ntawm cov khoom
Tiv Thaiv Kab Mob Plab: Nws muaj peev xwm tiv thaiv kab mob plab zoo thiab ruaj khov viscosity zoo thaum lub sijhawm khaws cia ntev.
PH ruaj khov: Qhov viscosity ntawm hydroxypropyl methylcellulose aqueous kua rau kev tsim kho tsis tshua cuam tshuam los ntawm acid lossis alkali, thiab tus nqi pH yog qhov ruaj khov nyob rau hauv qhov ntau ntawm 3.0 txog 11.0. Kev khaws cia duab Vim tias cov kua dej concentrated heev ntawm hydroxypropyl methylcellulose rau kev tsim kho muaj cov khoom tshwj xeeb viscoelastic piv rau cov kua dej ntawm lwm cov polymers, nws qhov ntxiv tuaj yeem txhim kho lub peev xwm los tswj cov duab ntawm cov khoom siv ceramic extruded.
Kev khaws dej: hydroxypropyl methylcellulose rau kev tsim kho muaj hydrophilicity thiab viscosity siab ntawm nws cov kua dej, uas yog tus neeg sawv cev khaws dej zoo.
Lwm yam khoom: thickener, zaj duab xis-tsim tus neeg sawv cev, binder, roj nplua nyeem, suspending tus neeg sawv cev, tiv thaiv colloid, emulsifier, thiab lwm yam.
Lub sijhawm tshaj tawm: Plaub Hlis-23-2023