1. Gịnị bụ utu aha nke hydroxypropyl methylcellulose?
——Azịza: Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose Abbreviation: HPMC ma ọ bụ MHPC Alias: Hypromellose;Cellulose Hydroxypropyl Methyl Ether;Hypromellose, cellulose, 2-hydroxypropylmethyl cellulose ether.Cellulose hydroxypropyl methyl ether Hyprolose.
2. Gịnị bụ isi ngwa nke hydroxypropyl methylcellulose (HPMC)?
——Azịza: A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins sịntetik, ceramik, ọgwụ, nri, akwa akwa, ọrụ ugbo, ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ.Enwere ike kewaa HPMC ka ọ bụrụ ọkwa ihe owuwu, ọkwa nri na ọkwa ọgwụ dịka ebumnuche siri dị.Ka ọ dị ugbu a, ọtụtụ n'ime ngwaahịa ụlọ bụ ọkwa ihe owuwu.Na ọkwa ihe owuwu, a na-eji ntụ ntụ na-eme ihe na nnukwu ego, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar na gluu.
3. Enwere ọtụtụ ụdị hydroxypropyl methylcellulose (HPMC), oleekwa ọdịiche dị na ojiji ha?
——Azịza: Enwere ike kewaa HPMC n'ụdị ozugbo na ụdị mgbasa ọkụ.Ngwa ngwa ụdị ngwaahịa na-agbasa ngwa ngwa na mmiri oyi wee pụọ n'ime mmiri.N'oge a, mmiri mmiri enweghị viscosity n'ihi na HPMC na-agbasasị naanị na mmiri na-enweghị ezigbo mgbasa.Ihe dị ka nkeji 2, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka viscos colloid transperent.Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, mgbe a na-ezute mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ.Mgbe okpomọkụ na-adaba n'otu ọnọdụ okpomọkụ, viscosity ga-eji nwayọọ nwayọọ na-apụta ruo mgbe ọ na-emepụta colloid viscous na-egbuke egbuke.Ụdị agbaze na-ekpo ọkụ nwere ike iji naanị na ntụ ntụ na ngwa ngwa.N'ime gluu mmiri mmiri na agba, a ga-enwe otu ihe na-enweghị ike iji ya mee ihe.Ụdị ngwa ngwa nwere ọtụtụ ngwa ngwa.Enwere ike iji ya na ntụ ntụ na ngwa ngwa, yana gluu mmiri na agba, na-enweghị ihe ọ bụla.
4. Kedu otu esi ahọrọ hydroxypropyl methylcellulose (HPMC) kwesịrị ekwesị maka ebumnuche dị iche iche?
——Azịza: Ngwa nke ntụ ntụ putty: Ihe achọrọ dị ntakịrị, yana viscosity bụ 100,000, nke zuru oke.Ihe dị mkpa bụ idobe mmiri nke ọma.Ngwa nke ngwa agha: elu chọrọ, elu viscosity, 150,000 ka mma.Ngwa nke gluu: ngwa ngwa ngwaahịa nwere nnukwu viscosity chọrọ.
5. Gịnị ka a ga-aṅa ntị na n'ezie ngwa nke mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC?
——Azịza: Viscosity nke HPMC na-adaba na ọnọdụ okpomọkụ, ya bụ, viscosity na-abawanye ka okpomọkụ na-ebelata.Viscosity nke ngwaahịa anyị na-ezokarị aka na nsonaazụ nnwale nke 2% mmiri mmiri na-ekpo ọkụ na ogo 20 Celsius.
Na ngwa ndị bara uru, ekwesịrị iburu n'uche na n'ebe ndị nwere nnukwu okpomọkụ dị iche n'etiti oge okpomọkụ na oyi, a na-atụ aro ka iji obere viscosity dị ntakịrị n'oge oyi, nke na-eme ka ọ dịkwuo mma iji wuo ụlọ.Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, na mmetụta aka ga-adị arọ mgbe ịchacha.
Viscosity ọkara: 75000-100000 a na-ejikarị maka putty
Ihe kpatara ya: ezigbo njide mmiri
Nnukwu viscosity: 150000-200000 A na-ejikarị eme ihe maka polystyrene urughuru thermal ikpuchi ngwa agha roba ntụ ntụ na vitrified microbead thermal ikpuchi ngwa agha.
Ihe kpatara ya: The viscosity dị elu, ngwa agha adịghị mfe ịdapụ, sag, na-ewu ụlọ ka mma.
6. HPMC bụ cellulose ether na-abụghị ionic, yabụ kedu ihe na-abụghị ionic?
——Azịza: N'okwu ndị nkịtị, ndị na-abụghị ions bụ ihe na-adịghị ionize na mmiri.Ionization na-ezo aka na usoro nke a na-ekewa electrolyte n'ime ion ebubo nke nwere ike ịkwaga n'enweghị ihe ọ bụla na ihe mgbaze (dị ka mmiri, mmanya).Dịka ọmụmaatụ, sodium chloride (NaCl), nnu anyị na-eri kwa ụbọchị, na-agbaze na mmiri na ionizes iji mepụta sodium ion (Na+) na-ebugharị n'enweghị ihe ọ bụla na ion chloride (Cl) na-ebubo na-ezighị ezi.Nke ahụ bụ, mgbe a na-etinye HPMC na mmiri, ọ gaghị ekewa n'ime ion ebubo, kama ọ dị n'ụdị molecules.
Oge nzipu: Eprel-26-2023