Nezve dambudziko rekushisa kwegel kwehydroxypropyl methylcellulose HPMC, vashandisi vazhinji havawanzo kutarisisa dambudziko rekushisa kwegel kwehydroxypropyl methylcellulose.Mazuva ano, hydroxypropyl methylcellulose inowanzosiyaniswa maererano ne viscosity, asi kune dzimwe nzvimbo dzakakosha uye maindasitiri akakosha, hazvina kukwana kungoratidzira viscosity yechigadzirwa.Izvi zvinotevera zvinounza muchidimbu tembiricha yegel yehydroxypropyl methylcellulose.
Huwandu hweboka remethoxyl hwakanangana nechiyero che cellulose sourization, uye zvirimo muboka remethoxyl zvinogona kugadziridzwa nekudzora fomula, kuita tembiricha uye nguva yekuita.Panguva imwecheteyo, dhigirii rekusashanda rinokanganisa dhigirii yekutsiva hydroxyethyl kana hydroxypropyl.Nokudaro, kuchengetwa kwemvura ye cellulose ether ine high gel tembiricha ichave yakashata.Iyi nzira yekugadzira inoda kuongororwa, saka haisi iyo mari yekugadzira cellulose ether yakaderera kana methoxy content yakaderera, pane zvinopesana, mutengo uchave wakakwirira.
Iyo tembiricha yegel inotarwa nemapoka emethoxyl, uye kuchengetwa kwemvura kunotsanangurwa nemapoka ehydroxypropoxyl.Pane mapoka matatu chete anotsiviwa pa cellulose.Tsvaga tembiricha yako yekushandisa yakakodzera, kuchengetedza mvura kwakakodzera, uye wobva waona modhi yeiyi cellulose.
Iyo tembiricha yegel inzvimbo yakakosha pakushandiswa kwe cellulose ether.Kana tembiricha yepakati ikapfuura tembiricha yegel, cellulose ether inoparadzaniswa kubva mumvura uye inorasikirwa nekuchengetedza kwayo mvura.Iyo tembiricha yegel ye cellulose ether pamusika inogona kuzadzisa zvinodiwa zvenzvimbo yekushandisa dhaka (kunze kwenzvimbo dzakakosha).Paunenge uchiisa dhaka, hapana chikonzero chekubhadhara zvakanyanya kune indekisi yekuita yekushisa kwegel.
Nguva yekutumira: Kubvumbi-04-2023