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I-Hydroxyethyl cellulose (HEC) ihlala incibilika emanzini kakhulu ebangeni elibanzi lokushisa, ngisho nasezindaweni ezishisa kakhulu lapho amanye ama-non-ionic chemically modified cellulose ethers afana ne-methyl cellulose (MC) kanye ne-hydroxypropyl methyl cellulose (HpMC) ekhombisa amaphuzu okungcola. Ukuze kucaciswe i-c...Funda kabanzi»
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Ifilimu ye-Hydroxypropyl methylcellulose (HPMC) isebenza kahle kakhulu, kodwa ngenxa yokuthi i-HPMC iyijeli yokushisa, i-viscosity ekushiseni okuphansi iphansi kakhulu, okungavumeli ukumbozwa (noma ukucwiliswa) nokomiswa ekushiseni okuphansi ukuze kulungiselelwe ifilimu edliwayo, okuholela ekusebenzeni kabi kokucubungula; ku ...Funda kabanzi»
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Ekuhlolweni nasekukhiqizweni ngobuningi kwamaphilisi e-nifedipine akhishwa isikhathi eside, amaphilisi okuvimbela inzalo, amaphilisi e-stomachicangning, amaphilisi e-ferrous fumarate, amaphilisi e-buflomedil hydrochloride, njll., sisebenzisa uketshezi lwe-hydroxypropyl methylcellulose (HPMC), i-Hydroxypropyl methylcellulose kanye ne-polyacrylic acid resin...Funda kabanzi»
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I-Hydroxypropyl methylcellulose (HPMC) isetshenziswa njengenye yezinto ezinkulu kakhulu ezisetshenziswa kwezokwelapha ekhaya nakwamanye amazwe. I-HPMC ingasetshenziswa njenge-ejenti yokwakha ifilimu, i-glue, i-ejenti yokukhulula eqhubekayo, i-suspension agent, i-emulsifier, i-ejenti yokuhlakazeka, njll. Izinto ezisetshenziswa kwezokwelapha ziyingxenye ebalulekile ye-p...Funda kabanzi»
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Ngokuphathelene nenkinga yokushisa kwejeli ye-Hydroxypropyl Methyl Cellulose HPMC, abasebenzisi abaningi abavamile ukunaka inkinga yokushisa kwejeli ye-Hydroxypropyl Methyl Cellulose. Namuhla, i-Hydroxypropyl Methyl Cellulose ngokuvamile ihlukaniswa ngokwe-viscosity yayo, kodwa...Funda kabanzi»
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1. Ukuhlukaniswa: I-HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo oluncibilikayo olushisayo. Imikhiqizo yohlobo olusheshayo isakazeka ngokushesha emanzini abandayo bese inyamalala emanzini. Ngalesi sikhathi, uketshezi alunawo umswakama, ngoba i-HPMC isakazeka emanzini kuphela futhi ayinakuncibilika kwangempela. Ngemva kwemizuzu engaba ngu-2, ...Funda kabanzi»
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I-Hydroxypropyl methylcellulose (HPMC) iyi-non-ionic cellulose ether eyenziwe nge-cellulose yemvelo ye-polymer ngokusebenzisa uchungechunge lwezinqubo zamakhemikhali. Ziyimpuphu emhlophe engenaphunga, engenambitheki futhi engenabuthi evuvukala emanzini abandayo ibe yisisombululo se-colloidal esicacile noma esinomswakama kancane. Ine-pro...Funda kabanzi»
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Hlanza ingemuva lethayela kuqala. Uma amabala, ungqimba oluntantayo kanye nempuphu yokukhulula eseleyo ngemuva kwamathayela kungahlanzwa, kulula ukuqoqana bese kwehluleka ukwakha ifilimu ngemva kokufakwa kwe-glue. Isikhumbuzo esikhethekile, amathayela ahlanziwe angapendwa nge-glue kuphela ngemva kokuba...Funda kabanzi»
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1. Okuqukethwe kwesihloko kanye nobubanzi bokusetshenziswa Le ndlela ichaza imishini kanye nezinyathelo zokusebenza zokunquma ukugeleza kodaka lukasimende. Le ndlela iyasebenza ekunqumeni ukugeleza kodaka lomlotha wentaba-mlilo i-Portland cement, i-composite Portland cement, i-Portland c evamile...Funda kabanzi»
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I-Sodium carboxymethyl cellulose (CMC) iyi-carboxymethylated derivative ye-cellulose, eyaziwa nangokuthi i-cellulose gum, futhi iyi-ionic cellulose gum ebaluleke kakhulu. I-CMC ngokuvamile iyi-anionic polymer compound etholakala ngokusabela kwe-cellulose yemvelo nge-caustic alkali kanye ne-monochloroacetic acid. I-mol...Funda kabanzi»
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▲ I-Hydroxypropyl methyl cellulose (HPMC) iyimpuphu emhlophe engenaphunga, engenambitheki, engenabuthi. Ngemva kokuncibilika ngokuphelele emanzini, i-hydroxypropyl methyl cellulose izokwakha i-colloid ecacile ne-viscous. ▲ Izinto eziyinhloko zokusetshenziswa ze-hydroxypropyl methyl cellulose (HPMC): ukotini ocolisisiwe, i-methyl chloride,...Funda kabanzi»
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Okuqukethwe komlotha kuyinkomba ebalulekile ye-hydroxypropyl methylcellulose. Amakhasimende amaningi avame ukubuza ukuthi bayiqonda nini i-hydroxypropyl methylcellulose: iyini inani lomlotha? I-Hydroxypropyl methylcellulose enokuqukethwe komlotha okuncane isho ubumsulwa obuphezulu; i-cellulose enokuqukethwe komlotha okukhulu isho ukuthi...Funda kabanzi»