Musiyano uripo pakati peinstant hypromellose uye inopisa soluble hypromellose

Parizvino, hydroxypropyl methylcellulose mumusika wepamba inonyanya kukamurwa kuita inopisa-inonyungudika mhando (inonziwo inononoka-kunyungudika rudzi) uye nekukasira-kunyungudika mhando, uye inopisa-inonyungudika mhando ndiyo yakajairika uye inonyanya kushandiswa mhando yeselulosi.

Hot-melt (slow-melt) hydroxypropyl methylcellulose HPMC haina kurapwa ne glyoxal. Kana huwandu hweglyoxal hwakakura, kupararira kuchakurumidza, asi viscosity ichawedzera zvishoma nezvishoma, uye kana mari yacho iri duku, zvinopesana zvichave zvechokwadi. Hydroxypropyl methylcellulose HPMC ichabatana kana ikasangana nemvura inotonhora (asi mamiriro ezvinhu aya achanyunguduka zvishoma nezvishoma, asi zvinotora nguva yakareba.), Asi inokurumidza kupararira mumvura mumvura inopisa kusvikira Yanyangarika zvachose mumvura, uye viscosity yayo inowedzera. zvishoma nezvishoma apo tembiricha inodonha zvishoma nezvishoma kusvika yava mvura inoonekera. Iyo clumping phenomenon yakafanana nekupera kwe-high-viscosity sodium carboxymethyl cellulose. Kana iyo cellulose poda kunze kwemvura inonyungudika, inova viscous, uye yobva yaputira cellulose mukati iyo isina kubata mvura, asi Mamiriro ezvinhu aya achaitawo zvishoma nezvishoma, asi zvinotora nguva yakareba.

Instant-type hydroxypropyl methylcellulose HPMC inorapwa pamusoro neglyoxal. Inopararira nekukurumidza mumvura inotonhora, asi hainyanyi kunyungudika. Zvinotora nguva kuti viscosity yaro isimuke, nokuti inongopararira mumvura mukutanga kwekutanga, iyo isiri yakakosha. Nokuda kwekuparara kwepamusoro, viscosity inosvika pakukosha kwepamusoro mumaminitsi makumi mana. Kana iyo viscosity ichikwira, mhinduro ine aqueous inova yakajeka uye yakajeka, iyo ndiyo chaiyo yekuparara. Instant-type hydroxypropyl methylcellulose HPMC inoshandiswa mune imwe indasitiri uye haizosanganiswa nehupfu yakaoma, kana painoda kunyungudutswa uye mvura inopisa haigone kushandiswa nekuda kwemamiriro emidziyo nezvimwe zvikonzero, instant-type hypromellose Cellulose-based solution. kudambudziko rakaoma kudaro.