Mmiri hydroxypropyl methyl cellulose (HPMC) bụ ụdị cellulose ether na-abụghị ionic, nke e ji polymer cellulose mee site na usoro nhazi kemịkalụ. Hypromellose (HPMC) bụ ntụ ọcha nke na-agbaze na mmiri oyi iji mepụta ihe ngwọta doro anya, viscous. O nwere ihe ndị dị ka thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gelation, surface activity, water redobe and colloid protection. Mmiri ejidere bụ ihe dị mkpa nke hypromellose HPMC, nke ọtụtụ ndị na-emepụta moto agwakọta mmiri na China na-echegbukwa. Ihe ndị na-emetụta mmiri gidere mmiri nke moto agwakọta mmiri gụnyere oke HPMC, viscosity nke HPMC, nha ihe na okpomọkụ nke gburugburu ebe obibi. Hypromellose HPMC na-arụ ọrụ dị mkpa na moto n'akụkụ atọ: ezigbo gidere mmiri ya, mmetụta ya na nguzosi ike moto na thixotropy, na mmekọrịta ya na simenti. Ọrụ nchekwa mmiri nke cellulose ether na-adabere na mmiri nke ntọala ahụ, ihe mejupụtara moto ahụ, ọkpụrụkpụ moto ahụ, mkpa mmiri moto ahụ na oge ntọala nke ihe e ji etinye ya. Ka hypromellose na-apụta ìhè karị, otú ahụ ka nchekwa mmiri ahụ ka mma.
Ihe ndị na-emetụta njide mmiri nke ngwa agha gụnyere viscosity nke cellulose ether, ọnụọgụ mgbakwunye, ịdị mma nke ihe ndị dị na ya na okpomọkụ ọrụ. Ka viscosity nke cellulose ether na-eme ka mmiri dịkwuo elu, otú ahụ ka njide mmiri ka mma. Viscosity bụ paramita dị mkpa nke arụmọrụ HPMC. Maka otu ngwaahịa ahụ, nke a tụrụ site na ụzọ dị iche iche nke nsonaazụ viscosity dị iche iche, ụfọdụ ọbụna okpukpu abụọ nke ọdịiche ahụ. Ya mere, mgbe a na-atụnyere viscosity, ga-adị n'otu usoro nnwale dị n'etiti, gụnyere okpomọkụ, rotor na ndị ọzọ. N'ikwu ya n'ozuzu, ka viscosity dị elu, ka mmetụta njide mmiri ka mma. Agbanyeghị, ka viscosity dị elu, ka ibu molekul nke HPMC dị elu, ka solubility nke HPMC ga-ebelata dịka o kwesịrị, nke nwere mmetụta ọjọọ na ike na arụmọrụ owuwu nke ngwa agha. Ka viscosity dị elu, ka mmetụta ọkpụrụkpụ nke ngwa agha ka mma, mana ọ bụghị nhata na mmekọrịta ahụ. Ka viscosity dị elu, ka slosity mmiri ga-adịkwu viscous, ma maka owuwu, arụmọrụ nke scraper na-arapara na nnukwu nrapado na substrate. Mana ọ baghị uru ịbawanye ike nhazi nke ngwa agha mmiri n'onwe ya. Ma owuwu, arụmọrụ maka arụmọrụ mgbochi ichaji. N'ụzọ dị iche, ụfọdụ hypromellose agbanwere agbanwe nwere obere viscosity ruo ọkara egosila arụmọrụ dị mma n'imeziwanye ike nhazi nke moto mmiri. Ka ọdịnaya nke cellulose ether dị elu na moto, otú ahụ ka ihe onwunwe nke ijide mmiri ka mma, otú ahụ ka viscosity dị elu ma ka mma ihe onwunwe nke ijide mmiri. Ịdị mma bụkwa ihe ngosi arụmọrụ dị mkpa maka hypromellose. Ịdị mma nke hypromellose nwekwara mmetụta ụfọdụ na ikike ijide mmiri ya. N'ozuzu, maka hypromellose nwere otu viscosity mana dị iche, n'okpuru otu ego mgbakwunye ahụ, otú ahụ ka mma ka mmetụta njide mmiri ka mma.
N'ime ngwa agha a gwakọtara mmiri, mgbakwunye nke cellulose ether HPMC dị obere nke ukwuu, mana ọ nwere ike ime ka arụmọrụ owuwu nke ngwa agha a gwakọtara mmiri ka mma. Nhọrọ ziri ezi nke hypromellose nwere mmetụta dị ukwuu na arụmọrụ nke ngwa agha a gwakọtara mmiri.
Oge ozi: Julaị-27-2023