▲I-Hydroxypropyl methyl cellulose (HPMC)iyimpuphu ye-odorless, engenambitha, engeyona into enobuthi. Ngemuva kokuqedwa ngokuphelele emanzini, i-hydroxypropyllylylylyl methyl cellulose izokwakha i-colloid esobala ye-viscous.
▲ Izinto zokusetshenziswa eziphambili ze-hydroxypropyllylylylylylylylylylylyll metrule (HPMC): I-methyl chloride, i-appylene oxide, nezinye izinto zokwakha, nezinye i-acid, i-acid, i-acip, i-toluene, i-acip.
Ukuqhathaniswa kwezinzuzo nokubi kwe-hydroxypropylllylylylylylylylylylylylks:
I-1.Pure Hydroxyproppropylllylylylylyl metulula hpmc ebonakalayo futhi inobuningi obuncane obuningi, ngesilinganiso esingu-0.3-0.4 / ml.
I-HPMC edangele inobunzima obuhle kakhulu futhi izizwa isindayo, ehluke kakhulu kumkhiqizo wangempela ngokubukeka.
2.Pure hydroxyproppropylllylylllylylllyllllylll pullulose HPMC ilulumbi licacile, ukudluliselwa okuphezulu okuphezulu, isilinganiso sokugcina amanzi> 97%.
Isixazululo se-HPMC esinamanzi esidangele singcolile, kanti izinga lokugcina amanzi linzima ukufinyelela kuma-80%.
I-3.Pure HPMC akufanele iphungele nge-ammonia, isitashi notshwala.
I-HPMC ye-Aleelped Imvamisa ingabe iphunga zonke izinhlobo zezinambitha, noma ngabe ayinambitha, kuzozizwa zisinda.
I-4.Pure Hydroxyproppropylllylylylyllylyllllslulose HPMC powder i-fibrope ngaphansi kwesibonakhulu noma ingilazi ekhulisa.
I-HPMC ye-Aleelped ingabhekwa njengezinsimbi ze-granular noma amakristalu ngaphansi kwesibonakhulu noma ingilazi ekhulisa.
Kusho ukuthini ukukhomba izinzuzo nokubi kwe-hydroxypropyllylylylylyllose?
1.Izinga
Yize ubumnene bunganqume ukuthi ngabe i-HPMC kulula ukuyisebenzisa, futhi uma kufakwa ama-ejenti amhlophe ngesikhathi senqubo yokukhiqiza, kuzothinta ikhwalithi yayo. Kodwa-ke, iningi lemikhiqizo emihle limhlophe.
2.FEFECE
Ubumsulwa be-HPMC ngokuvamile bunamamitha angama-80 no-100 mesh, futhi ubuciko obuhle, ngokuvamile ekhuluma, okungcono.
I-3.Transmitance
BekaI-Hydroxypropyl methyl cellulose (HPMC)Ngamanzi ukwakha i-colloid esobala, bese ubheka ukudluliselwa kwayo okukhanyayo. Lapho kuphakama ukudluliselwa kokukhanya, okungcono, okubonisa ukuthi kunezinto ezingaphansi kwemali ezingaphansi kwayo. Ukuhlinzekelwa kwama-reactors mpo ngokuvamile kulungile, kanti lokho kuphendula okuvundlile kubi kakhulu.
I-4.Proport
Uma kukhudlwana amandla adonsela phansi athile, okusindayo kube ngcono. Ukucaciswa kukhulu, ngokuvamile ngoba okuqukethwe kweHydroxypropyl Group kuyo kuphezulu, futhi okuqukethwe kweHydroxypropyl Group kuphezulu, ukugcinwa kwamanzi kungcono.
Isikhathi sePosi: APR-25-2024