Mmetụta nke Hydroxypropyl Methyl Cellulose HPMC na oge ịtọ ntọala

Oge nhazi nke ihe na-emetụtakarị oge nhazi nke ciment, mmetụta nke nchịkọta adịghịkwa mma. Ya mere, mmetụta nke hydroxypropyl methylcellulose HPMC na mwube oge nke n'okpuru mmiri na-abụghị dispersible ihe ngwakọta nwere ike mụọ site mwube oge nke ngwa agha. Ebe ọ bụ na mmiri na-emetụta oge nhazi nke ngwa agha, iji nyochaa mmetụta HPMC na nhazi oge nke ngwa agha, ọ dị mkpa ka edozi mmiri-ciment ratio na ngwa ngwa nke ngwa agha.

Nsonaazụ nnwale na-egosi na mgbakwunye nke hydroxypropyl methylcellulose HPMC nwere mmetụta dị ịrịba ama na-adaghachi azụ na ngwakọta ngwa agha, na oge nhazi nke ngwa agha na-agbatịkwu ogologo oge na mmụba nke hydroxypropyl methylcellulose. N'ihe gbasara otu ọdịnaya HPMC, ngwa agha a na-emepụta n'okpuru mmiri dị mma karịa ngwa agha a na-emepụta na ikuku. Ịkpụzi ọkara na-ewe ogologo oge iji tọọ ya. Mgbe a tụrụ ya na mmiri, ma e jiri ya tụnyere oghere oghere, oge nhazi mbụ nke ngwa agha agwakọta na hydroxypropyl methylcellulose na-egbu oge site na awa 6-18, na oge nhazi ikpeazụ na-egbu oge site na 6-22 awa. Ya mere, a ga-eji HPMC mee ihe yana ndị ọrụ ike mmalite.

HPMC bụ polymer molekụla dị elu nwere usoro ahịrị ahịrị macromolecular. Ndị otu ya na-arụ ọrụ nwere otu hydroxyl, nke nwere ike ịmepụta njikọ hydrogen na ụmụ irighiri mmiri agwakọta ma na-abawanye viscosity nke mmiri agwakọta. Ogologo molecular chains nke HPMC ga-adọta ibe ha, na-eme ka ụmụ irighiri ihe HPMC jikọtara ọnụ iji mepụta usoro netwọkụ, na-ekechi ciment na ịgwakọta mmiri. Ebe ọ bụ na HPMC na-etolite usoro netwọkụ dị ka ihe nkiri iji kechie ciment, ọ nwere ike igbochi mgbanwe nke mmiri na ngwa ngwa, ma gbochie ma ọ bụ belata ọnụego hydration nke ciment.