1. Gịnị bụ aha a kpọrọ hydroxypropyl methylcellulose?
——Azịza: Hydroxypropyl Methyl Cellulose, Bekee: Hydroxypropyl Methyl Cellulose Nchikota: HPMC ma ọ bụ MHPC Aha otutu: Hypromellose; Cellulose Hydroxypropyl Methyl Ether; Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
2. Gịnị bụ isi ihe e ji hydroxypropyl methylcellulose (HPMC) eme?
——Azịza: A na-eji HPMC eme ihe n'ọtụtụ ebe n'ihe owuwu, ihe mkpuchi, resin sịntetik, seramiiki, ọgwụ, nri, ákwà, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC n'ime ọkwa owuwu, ọkwa nri na ọkwa ọgwụ dịka ebumnuche ya si dị. Ugbu a, ọtụtụ n'ime ngwaahịa ụlọ bụ ọkwa owuwu. N'ọkwa owuwu, a na-eji ntụ ntụ putty eme ihe n'ọtụtụ buru ibu, ihe dị ka 90% bụ maka ntụ ntụ putty, ebe a na-eji ihe ndị ọzọ eme ihe maka simenti na gluu.
3. E nwere ọtụtụ ụdị hydroxypropyl methylcellulose (HPMC), kedu ihe dị iche n'ojiji ha?
——Azịza: Enwere ike kewaa HPMC n'ụdị ozugbo na ụdị mgbaze ọkụ. Ngwaahịa ụdị ozugbo na-agbasa ngwa ngwa na mmiri oyi ma na-apụ n'anya n'ime mmiri. N'oge a, mmiri mmiri ahụ enweghị viscosity n'ihi na a na-agbasa HPMC naanị na mmiri na-enweghị mgbaze n'ezie. Ihe dị ka nkeji abụọ, viscosity nke mmiri mmiri ahụ na-abawanye nwayọ nwayọ, na-emepụta viscous colloid doro anya. Ngwaahịa agbaze ọkụ, mgbe ha zutere ya na mmiri oyi, nwere ike ịgbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ dara ruo na okpomọkụ ụfọdụ, viscosity ga-apụta nwayọ nwayọ ruo mgbe ọ ga-emepụta viscous colloid doro anya. Ụdị agbaze ọkụ nwere ike iji naanị na putty powder na mortar. Na mmiri gluu na agba, a ga-enwe ihe na-eme ka a na-ahazi ya ma enweghị ike iji ya. Ụdị ngwa ngwa nwere ọtụtụ ojiji. Enwere ike iji ya na putty powder na mortar, yana mmiri gluu na agba, na-enweghị ihe mgbochi ọ bụla.
4. Kedu otu esi ahọrọ hydroxypropyl methylcellulose (HPMC) kwesịrị ekwesị maka ebumnuche dị iche iche?
——Azịza::Itinye ntụ ntụ putty: Ihe achọrọ dị obere, viscosity ya dịkwa 100,000, nke zuru ezu. Ihe dị mkpa bụ idobe mmiri nke ọma. Itinye ụrọ: ihe achọrọ ka ọ dị elu, viscosity ya dị elu, 150,000 ka mma. Itinye gluu: ihe ndị a chọrọ ozugbo nwere viscosity dị elu dị mkpa.
5. Gịnị ka a ga-elebara anya na ya n'otú e si etinye mmekọrịta dị n'etiti viscosity na okpomọkụ nke HPMC n'ọrụ?
——Azịza: Oke mmiri nke HPMC na-adaba na oke okpomọkụ, ya bụ, oke mmiri na-abawanye ka okpomọkụ na-ebelata. Oke mmiri nke ngwaahịa anyị na-ezo aka na ya na-ezo aka na nsonaazụ nnwale nke mmiri mmiri 2% ya na okpomọkụ nke ogo Celsius 20.
N'ọrụ bara uru, a ga-amara na n'ebe nwere nnukwu ọdịiche okpomọkụ n'etiti oge okpomọkụ na oge oyi, a na-atụ aro ka e jiri obere viscosity n'oge oyi, nke na-eme ka ọ dịkwuo mma maka owuwu. Ma ọ bụghị ya, mgbe okpomọkụ dị ala, viscosity nke cellulose ga-abawanye, mmetụta aka ga-adịkwa arọ mgbe a na-akpụcha ya.
Ọkwa dị n'etiti: 75000-100000 a na-ejikarị eme ihe maka putty
Ihe kpatara ya: ezigbo njigide mmiri
Nnukwu viscosity: 150000-200000 A na-ejikarị ya eme ihe maka mkpuchi okpomọkụ nke ihe polystyrene, ntụ ntụ roba na ihe mkpuchi okpomọkụ nke microbead vitrified.
Ihe kpatara ya: Ọbara dị elu, ngwa agha ahụ adịghị mfe ịda, ọ na-ada, a na-emezikwa ihe owuwu ahụ nke ọma.
6. HPMC bụ cellulose ether nke na-abụghị ionic, yabụ gịnị bụ non-ionic?
——Azịza: N'okwu ndị nkịtị, ihe ndị na-abụghị ion bụ ihe ndị na-anaghị ion n'ime mmiri. Ionization na-ezo aka n'usoro e si ekewa electrolyte n'ime ion charge nke nwere ike ịkwaga n'enweghị nsogbu n'ime ihe mgbaze kpọmkwem (dịka mmiri, mmanya). Dịka ọmụmaatụ, sodium chloride (NaCl), nnu anyị na-eri kwa ụbọchị, na-agbaze na mmiri ma na-agbanwe ion iji mepụta sodium ion (Na+) nke a na-ebugharị nke ọma na ion chloride (Cl) nke a na-enweta na-adịghị mma. Nke ahụ bụ, mgbe etinyere HPMC na mmiri, ọ gaghị ekewa n'ime ion charge, kama ọ dị adị n'ụdị molekul.
Oge ozi: Eprel-26-2023