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1. Kedu ihe bụ isi ihe na-egosi teknụzụ nke hydroxypropyl methyl cellulose (HPMC)? Ọdịnaya na viscosity nke HPMC Hydroxypropyl, ọtụtụ ndị ọrụ na-enwe nchegbu maka ihe ngosi abụọ a. Njide mmiri na-akacha mma maka ndị nwere nnukwu hydroxypropyl. Oke viscosity, njigide mmiri, re...GỤKWUO»
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Ọtụtụ ndị na-eji ya anaghị eleba anya na nsogbu nke okpomọkụ jel hydroxypropyl methyl cellulose HPMC. Taa, a na-ahụkarị viscosity nke hydroxypropyl methyl cellulose HPMC, mana maka ụfọdụ gburugburu pụrụ iche na ụlọ ọrụ pụrụ iche, naanị viscosity nke ngwaahịa ahụ ka a na-egosipụta. N...GỤKWUO»
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Hydroxypropyl methyl cellulose HPMC bụ cellulose ether na-abụghị ionic nke e ji cellulose ihe polymer eke mee site na usoro nhazi kemịkalụ. Ha bụ ntụ ọcha na-enweghị isi, enweghị uto, na-anaghị egbu egbu nke na-agbaze ghọọ mmiri colloidal doro anya ma ọ bụ ntakịrị gbara ọchịchịrị n'ime mmiri oyi. O nwere ...GỤKWUO»
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N'ime ngwa agha agwakọtara agwakọta, ọnụọgụ mgbakwunye nke hydroxypropyl methyl cellulose HPMC dị obere nke ukwuu, mana ọ nwere ike ime ka arụmọrụ nke ngwa agha mmiri ka mma nke ukwuu, nke bụ nnukwu ihe mgbakwunye nke na-emetụta arụmọrụ owuwu nke ngwa agha ahụ. Cellulose ethers nwere viscosity dị iche iche na...GỤKWUO»
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1. Ụdị HPMC Hypromellose bụ isi, aha Bekee bụ hydroxypropyl methylcellulose, nke a na-akpọ HPMC. Usoro molekul ya bụ C8H15O8-(C10Hl8O6)n-C8Hl5O8, ịdị arọ molekul dịkwa ihe dịka 86,000. Ngwaahịa a bụ ihe e ji ihe ndị e ji ihe ndị e ji ihe ndị dị n'ime ya mee, nke bụ akụkụ nke otu methyl na akụkụ nke polyhydrox...GỤKWUO»
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A na-eji owu dị ọcha eme Hydroxypropyl methyl cellulose, nke a na-akpọ cellulose [HPMC], ma e ji owu dị ọcha mee ya, a na-akwadebekwa ya site na etherification pụrụ iche n'okpuru ọnọdụ alkaline. A na-emecha usoro ahụ dum n'okpuru nlekota akpaaka ma enweghị ihe ọ bụla dị mkpa dịka...GỤKWUO»
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1 Okwu Mmalite China anọwo na-akwalite ngwa agha agwakọtara agwakọta ihe karịrị afọ 20. Karịsịa n'afọ ndị na-adịbeghị anya, ngalaba gọọmentị mba dị mkpa etinyela mkpa n'ịmepụta ngwa agha agwakọtara agwakọta ma wepụta amụma ndị na-agba ume. Ugbu a, e nwere ihe karịrị mpaghara iri na...GỤKWUO»