I-Hydroxypropyl methylcellulose yi-ether ye-cellulose engeyo-ionic eyenziwe kwi-cellulose yendalo ye-polymer yendalo ngokusebenzisa uchungechunge lweenkqubo zemichiza. Ziluhlobo lomgubo omhlophe ongenavumba, ongeyotyhefu, odumba emanzini abandayo kwaye ubizwa ngokuba sisisombululo secolloidal esicacileyo okanye esinamafu kancinci. Ineempawu zokuqina, ukubopha, ukusabalalisa, i-emulsifying, ifilimu-ifom, ukumisa, i-adsorbing, i-gelling, i-surface esebenzayo, ukugcina umswakama kunye nokukhusela i-colloid.
I-hydroxypropyl methylcellulose egqwesileyo inokusombulula ngempumelelo ingxaki yokugcinwa kwamanzi phantsi kobushushu obuphezulu. Ngamaxesha okushisa aphezulu, ngokukodwa kwiindawo ezishushu nezomileyo kunye nokwakhiwa kwe-thin-layer kwicala elinelanga, i-HPMC ephezulu ye-hydroxypropyl methylcellulose iyadingeka ukuze kuphuculwe ukugcinwa kwamanzi kwi-slurry.
Umgangatho ophezulu we-hydroxypropyl methylcellulose unokufana okuhle ngokukodwa. Amaqela ayo e-methoxy kunye ne-hydroxypropoxy asasazwa ngokulinganayo ecaleni kwetsheyini ye-cellulose yemolekyuli, enokuphucula ii-athomu ze-oksijini kwi-hydroxyl kunye ne-ether bond kunye nombutho wamanzi. Ukukwazi ukudibanisa kunye nokwenza iibhondi ze-hydrogen zijika amanzi akhululekile kumanzi adibeneyo, ngaloo ndlela ulawula ngokufanelekileyo ukuvela kwamanzi okubangelwa yimozulu yokushisa okuphezulu kunye nokufezekisa ukugcinwa kwamanzi aphezulu.
Ixesha lokuposa: May-17-2023