I-Hydroxypropyl methylcellulose yi-non-ionic cellulose ether eyenziwe nge-cellulose yendalo yepolymer ngokusebenzisa uthotho lweenkqubo zeekhemikhali. Ziluhlobo lwepowder emhlophe engenavumba, engenavumba, engenatyhefu, evuvukala emanzini abandayo kwaye ibizwa ngokuba yisisombululo se-colloidal esicacileyo okanye esinamafu kancinci. Ineempawu zokutyeba, ukubopha, ukusasaza, ukuxuba, ukwenza ifilimu, ukuyimisa, ukuyifunxa, ukuyifunxa, ukuyigalela, ukusebenza komphezulu, ukugcina umswakama kunye nokukhusela i-colloidal.
I-hydroxypropyl methylcellulose egqwesileyo inokusombulula ngempumelelo ingxaki yokugcina amanzi phantsi kobushushu obuphezulu. Ngamaxesha obushushu obuphezulu, ingakumbi kwiindawo ezishushu nezomileyo kunye nolwakhiwo oluncinci kwicala elinelanga, i-HPMC hydroxypropyl methylcellulose ekumgangatho ophezulu iyafuneka ukuphucula ukugcina amanzi kwe-slurry.
I-hydroxypropyl methylcellulose ekumgangatho ophezulu inobunye obuhle kakhulu. Amaqela ayo e-methoxy kunye ne-hydroxypropoxy asasazwa ngokulinganayo kwi-cellulose molecular chain, enokuphucula ii-athomu ze-oxygen kwi-hydroxyl kunye ne-ether bonds kunye nobudlelwane bamanzi. Amandla okudibanisa nokwenza ii-hydrogen bonds aguqula amanzi akhululekileyo abe ngamanzi abotshelelweyo, ngaloo ndlela elawula ngempumelelo ukufuma kwamanzi okubangelwa yimozulu ephezulu yobushushu kwaye afezekise ukugcinwa kwamanzi okuphezulu.
Ixesha leposi: Meyi-17-2023