N'ime putty, ngwa ngwa ciment na slurry dabeere na gypsum,HPMChydroxypropyl methylcellulose ether tumadi na-arụ ọrụ nke njide mmiri na ndim, ma nwee ike melite nrapado na sag nguzogide nke slurry nke ọma. Ihe ndị dị ka okpomọkụ ikuku, okpomọkụ na ọsọ ọsọ ikuku ga-emetụta ọnụ ọgụgụ mmiri na-agbanwe agbanwe na putty, ciment mortar na ngwaahịa gypsum. Ya mere, n'oge dị iche iche, e nwere ụfọdụ ọdịiche na mmetụta njide mmiri nke ngwaahịa na otu ego nke HPMC gbakwunyere. N'ime ihe owuwu a kapịrị ọnụ, enwere ike gbanwee mmetụta njide mmiri nke slurry site na ịba ụba ma ọ bụ ibelata ego nke HPMC agbakwunyere.
Njide mmiri nke methyl cellulose ether n'okpuru ọnọdụ okpomọkụ dị elu bụ ihe dị mkpa na-egosi ọdịiche dị mma nke methyl cellulose ether. Ngwaahịa usoro 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. HPMC dị elu nwere ike gbanwee mmiri efu dị na ngwa ngwa ka ọ bụrụ mmiri a kpara akpa, si otú ahụ na-achịkwa evaporation nke mmiri nke ihu igwe dị elu na-ebute ma nweta nnukwu njigide mmiri.
Enwere ike ịgbasa methyl cellulose dị elu nke ọma na ngwa ngwa ciment na ngwaahịa gypsum, ma kechie ihe niile siri ike, na-emepụta ihe nkiri wetting, na mmiri ga-eji nwayọọ nwayọọ na-ahapụ ogologo oge. Mmeghachi omume hydration na-eme, si otú a hụ na ike nkekọ na ike mkpakọ nke ihe. Ya mere, n'ime ụlọ okpomọkụ na-ekpo ọkụ na-ekpo ọkụ, iji nweta mmetụta njide mmiri, ọ dị mkpa ịgbakwunye ngwaahịa HPMC dị elu na oke zuru oke dịka usoro ahụ si dị. Ọ bụrụ na a na-eji ihe mgbakwunye HPMC eme ihe, hydration ezughi oke, ike belata, mgbawa, na oghere ga-eme n'ihi oke ihicha. Nsogbu ndị dị mma dị ka ịgbà na ịwụfu na-emekwa ka ihe isi ike nke ndị ọrụ na-ewu ụlọ. Ka ọnọdụ okpomọkụ na-adaba, ọnụ ọgụgụ nke HPMC agbakwunyere nwere ike iji nwayọọ nwayọọ belata, ma nwee ike nweta otu mmetụta njide mmiri.
Usoro mmeghachi omume na-achịkwa nke ọma mmepụta nkeHPMC, na nnọchi ya zuru oke na otu ya dị ezigbo mma. Ngwọta mmiri ya doro anya ma doo anya, yana eriri ole na ole n'efu. Nkwekọrịta na ntụ ntụ roba, ciment, lime na ihe ndị ọzọ bụ isi dị ike karịsịa, nke nwere ike ime ka isi ihe na-arụ ọrụ kacha mma. Agbanyeghị, HPMC nwere mmeghachi omume na-adịghị mma nwere ọtụtụ eriri n'efu, nkesa na-ezighi ezi nke ihe mgbakwunye, njigide mmiri na-adịghị mma na ihe ndị ọzọ, na-ebute oke ikuku mmiri na ihu igwe dị elu. Otú ọ dị, ihe a na-akpọ HPMC (ụdị ngwakọta) nke nwere nnukwu ihe adịghị ọcha na-esiri ike ịhazi onwe ya, ya mere njigide mmiri na ihe ndị ọzọ dị njọ karị. Mgbe a na-eji HPMC na-adịghị mma, a ga-ebute nsogbu ndị dị ka obere slurry ike, obere oge mmeghe, ntụ ntụ, mgbawa, oghere na ịkwafu, nke ga-eme ka ihe isi ike na-arụ ọrụ dịkwuo elu ma belata ịdị mma nke ụlọ ahụ.
Oge nzipu: Eprel-28-2024