Hydroxypropyl methylcellulose bụ cellulose ether nke na-abụghị ionic nke e ji owu a nụchara anụcha mee site na usoro mmeghachi omume kemịkalụ. Ọ bụ ihe na-adịghị esi ísì, nke na-adịghị egbu egbu nke na-agbaze na mmiri ma na-enye ngwọta colloidal doro anya ma ọ bụ nke nwere obere ígwé ojii. O nwere njirimara nke ịka nká, idobe mmiri na ịrụpụta ya dị mfe. Mmiri mmiri nke hydroxypropyl methylcellulose HPMC kwụsiri ike na oke HP3.0-10.0, mgbe ọ na-erughị 3 ma ọ bụ karịa 10, viscosity ga-ebelata nke ukwuu.
Isi ọrụ nke hydroxypropyl methylcellulose na simenti na ntụ ntụ putty bụ idobe mmiri na oke ọkpụrụkpụ, nke nwere ike ime ka njikọ na nguzogide nke ihe dị iche iche ka mma nke ọma.
Ihe ndị dị ka okpomọkụ na ọsọ ifufe ga-emetụta ọnụego mmiri na-agbanwe agbanwe na moto, putty na ngwaahịa ndị ọzọ, yabụ n'oge dị iche iche, mmetụta nchekwa mmiri nke ngwaahịa nwere otu ọnụọgụ cellulose agbakwunyere ga-enwekwa ụfọdụ ọdịiche. N'ihe owuwu a kapịrị ọnụ, enwere ike ịgbanwe mmetụta nchekwa mmiri nke slurry site na ịbawanye ma ọ bụ ibelata ọnụọgụ HPMC agbakwunyere. Nchekwa mmiri nke hydroxypropyl methylcellulose HPMC na okpomọkụ dị elu bụ ihe ngosi dị mkpa iji mata ịdị mma nke HPMC. HPMC dị mma nwere ike idozi nsogbu nke nchekwa mmiri nke ọma n'okpuru ọnọdụ okpomọkụ dị elu. N'oge ọkọchị na ebe nwere okpomọkụ dị elu na ọsọ ifufe dị elu, ọ dị mkpa iji HPMC dị elu iji melite arụmọrụ nchekwa mmiri nke slurry.
Ya mere, n'oge okpomọkụ dị elu, iji nweta mmetụta njide mmiri, ọ dị mkpa ịgbakwunye oke HPMC dị elu dịka usoro si dị, ma ọ bụghị ya, a ga-enwe nsogbu dị mma dịka enweghị mmiri zuru oke, ike belatara, mgbawa, oghere na mwụfu nke nkụ ngwa ngwa kpatara, na n'otu oge ahụ na-eme ka ihe isi ike nke owuwu nke ndị ọrụ dịkwuo elu. Ka okpomọkụ na-ebelata, enwere ike ibelata ọnụọgụ HPMC agbakwunyere nwayọ nwayọ, enwere ike nweta otu mmetụta njide mmiri ahụ.
N'imepụta ihe owuwu ụlọ, hydroxypropyl methylcellulose bụ ihe mgbakwunye dị oke mkpa. Mgbe etinyere HPMC, enwere ike imeziwanye ihe ndị a:
1. Nchekwa mmiri: Mee ka mmiri dịgide, meziwanye simenti, ntụ ntụ kpọrọ nkụ na-akpọ nkụ ngwa ngwa na enweghị mmiri zuru oke kpatara ike siri ike, mgbawa na ihe ndị ọzọ.
2. Nrapado: N'ihi mmụba nke rọm ahụ, ọ nwere ike ijikọ ihe mkpuchi ahụ na ihe e ji ejikọta ya nke ọma.
3. Mgbochi ịda ada: N'ihi mmetụta ya na-eme ka ọ sie ike, ọ nwere ike igbochi mkpụgharị nke ihe e ji ụrọ kpụọ na ihe ndị e ji aka kpụọ n'oge a na-arụ ya.
4. Ike ịrụ ọrụ: Mee ka ihe owuwu ahụ dịkwuo mma, mee ka ụlọ ọrụ mmepụta ihe dịkwuo mma ma melite arụmọrụ ọrụ.
Oge ozi: Eprel-12-2023