Basa rakakosha reHPMC mune yakanyoroveswa-yakasanganiswa motsi kunyanya ine inotevera zvinhu zvitatu:
1. HPMC ine yakanakisa mvura yekuchengetwa kwemvura.
2. Iyo pesvedzero yeHPMC pane iyo confegency uye iyo thisiotropy yeiyo yakanyorova-yakavhenganiswa dhaka.
3. Kubatana pakati peHPMC uye simende.
Kuchengetwa kwemvura kwakakosha kuita kweHPMC, uye zvakare iko kuita uko vazhinji vakanyorova-vasina moster vavengi vanogadzira.
Iyo yekuchengetwa kwemvura yeHPMC inoenderana nemvura inofamba-famba yemugove wechigadziko, kuumbwa kweguruva remuumbi, iyo yemvura inodaira, uye iyo nguva yekuisa zvinhu.
HPMC - Kuchengeta mvura
Yakakwira iyo tembiricha yeHPMC, iri nani kuchengetwa kwemvura.
Zvinhu zvinokanganisa kuchengetwa kwemvura kwemvura-yakasanganiswa motsi ari hpmc viscosity, kuwedzera huwandu, chetatu pini uye shandisa tembiricha.
Viscosity izimendi yakakosha yeHPMC kuita. Nezvechigadzirwa chimwe chete, iwo mavhisipa anoguma nenzira dzakasiyana nenzira dzakasiyana siyana, uye vamwe vakatowedzera mutsauko. Naizvozvo, patinofananidza visiko, zvinoda kuitwa pakati penzira dzakafanana bvunzo, kusanganisira tembiricha, Spindle, etc. Kazhinji, iyo yepamusoro yekuvona, iri nani kuchengeta mvura.
Nekudaro, iyo yepamusoro iyo viscosity uye yakakura kwazvo inorema uremu hweHPMC, kuderera kunoenderana mukushushikana kwayo kunokanganisa kusasimba kwekuita kwesimba. Iyo yepamusoro iyo viscosity, zvakanyatsojeka mhedzisiro yemota, asi isina kuenzana. Iyo yepamusoro iyo viscosity, iyo yakawanda viscous iyo mongwe yakanyorova ndeye, iyo inoratidza kunamatira kune iyo scriper panguva yekuvaka uye yakanyanya kuderera kune substrate. Nekudaro, HPMC ine zvishoma zvinokanganisa pakuvandudza simba rekusimbisa kweiyo mongwe yakanyorova pacharo, inoratidza kuti kuita kwekunyepedzera hakuonekwe. Pane zvinopesana, imwe yakagadziridzwa HPMC ine pakati nepakati uye yakaderera viscosity yakanaka mukuvandudza simba rerudzi rwemutya.
Iyo yakajeka yeHPMC zvakare ine imwe pesvedzero pakuchengeta kwayo kwemvura. Kazhinji, yeHPMC neiyo viscosity shoma asi yakasiyana-finayo, iyo fine hpmc, iri nani kuchinjanisa mvura pasi pehuwandu hwekuwedzera.
Tumira nguva: Jun-15-2023