IHydroxypropyl methylcellulose (HPMC)yi-ether ye-cellulose engeyo-ionic esetyenziswa ngokubanzi ekutyeni, amayeza, ukwakhiwa kunye nezinye iindawo. Yenziwe kwiselulosi yendalo ngokulungiswa kweekhemikhali ezifana ne-alkalization kunye ne-etherification, kwaye inezi mpawu zilandelayo eziphambili:
4. Indalo kunye ne-biocompatibility
Ukhuseleko lokusingqongileyo: I-HPMC sisixhobo esinokonakala kwindalo esingqongileyo.
Ukhuseleko lwebhayoloji: Njengesongezo sokutya kunye neziyobisi, inokuhambelana kakuhle kwezinto eziphilayo kwaye ayinayo ityhefu kwaye ayinabungozi.
5. Ukulungelelaniswa kweempawu zomzimba
Iipropati ze-HPMC (ezifana ne-viscosity kunye nobushushu be-gel) zinokuhlengahlengiswa ngokulungelelanisa iqondo layo lokutshintshwa (umxholo we-methoxy kunye namaqela e-hydroxypropyl) ukuhlangabezana neemfuno ezahlukeneyo zesicelo.
6. Ukumelana neekhemikhali
Ukunganyangeki kwetyuwa: Izinzile kugxininiso oluthile lwesisombululo setyuwa.
Ukumelana ne-Enzymatic: Xa kuthelekiswa neselulosi yendalo, i-HPMC inoxhathiso olunamandla kwi-enzymatic hydrolysis.
IHydroxypropyl methylcellulose isetyenziswe ngokubanzi kumashishini amaninzi afana nokutya, amayeza, kunye nokwakha ngenxa yeempawu zayo ezibalaseleyo zomzimba kunye neekhemikhali, iimpawu zemisebenzi emininzi, kunye nokusebenza okubanzi. Ukunyibilika kwayo okukodwa kwamanzi, ukutyeba, ukugcinwa kwamanzi, kunye neempawu zokwenza ifilim zenza ukuba ibe yinto engenakubuyiselwa kwaye ibalulekileyo.
Ixesha lokuposa: Nov-29-2024