HPMC na-arụkarị ọrụ nke njide mmiri na ịgbara mmiri simenti na slurry dabere na gypsum, nke nwere ike imezi njikọ na nguzogide sag nke slurry nke ọma.
Ihe ndị dị ka okpomọkụ ikuku, okpomọkụ na ikuku ikuku ga-emetụta ọnụ ọgụgụ nke evaporation nke mmiri na ciment mortar na ngwaahịa gypsum. Ya mere, na oge dị iche iche, na-agbakwunye otu ego HPMC, mmetụta njigide mmiri nke ngwaahịa nwere ụfọdụ ọdịiche. Njide mmiri nke methyl cellulose ether na okpomọkụ dị elu bụ ihe dị mkpa na-egosi ọdịiche dị mma nke methyl cellulose ether. HPMC mara mma nwere ike dozie nsogbu nke njide mmiri n'okpuru oke okpomọkụ. N'oge okpomọkụ dị elu, karịsịa n'ebe ndị na-ekpo ọkụ ma na-ekpo ọkụ na ebe a na-emepụta ihe na-egbuke egbuke n'akụkụ anwụ na-acha, a chọrọ HPMC dị elu iji meziwanye njide mmiri nke slurry. High-edu HPMC, na nnọọ mma uniformity, ya methoxy na hydroxypropoxy iche iche na-evenly kesara tinyere cellulose molekul yinye, nke nwere ike melite ike nke oxygen atọm na hydroxyl na ether agbụ na-akpakọrịta na mmiri na-etolite hydrogen agbụ, nke mere na free mmiri na-aghọ agbụ mmiri, nke mere na n'ụzọ dị irè ịchịkwa evaporation nke mmiri na-enweta site na elu mmiri okpomọkụ.
Elu-edu cellulose HPMC nwere ike uniformly na n'ụzọ dị irè gbasasịa na ciment ngwa agha na gypsum dabeere na ngwaahịa, na encapsulates niile siri ike ahụ, na-etolite a wetting film, na mmiri na isi na-eji nwayọọ nwayọọ tọhapụrụ ogologo oge. Mmeghachi omume hydration nke ihe coagulating na-eme, si otú a na-eme ka ike njikọ na ike mkpakọ nke ihe. Ya mere, n'ime okpomọkụ dị elu na-ewu ụlọ okpomọkụ, iji nweta mmetụta nke njide mmiri, ọ dị mkpa ịgbakwunye ngwaahịa HPMC dị elu dị ka usoro ahụ si dị, ma ọ bụghị ya, a ga-enwe hydration na-ezughị ezu, mbelata ike, cracking, hollowing na falling off n'ihi oke ngwa ngwa ihicha. Ọ na-emekwa ka ihe isi ike nke ndị ọrụ na-arụ ọrụ na-esiwanye ike. Ka okpomọkụ na-ebelata, a pụrụ iji nwayọọ nwayọọ belata ihe mgbakwunye nke HPMC, ma nwee ike nweta otu mmetụta njide mmiri.
Oge nzipu: Mar-26-2022