Dị ka otu n'ime ihe dị mkpa cellulose ether admixtures na akọrọ ntụ ntụ ngwa agha, hydroxypropyl methylcellulose nwere ọtụtụ ọrụ na ngwa agha. Ọrụ kachasị mkpa nke hydroxypropyl methylcellulose na ngwa ngwa ciment bụ njide mmiri na ịgbatị. Na mgbakwunye, n'ihi mmekọrịta ya na sistemu ciment, ọ nwekwara ike ịrụ ọrụ inyeaka n'ịkwanye ikuku, nkwụghachi azụ, na imeziwanye ike nkekọ tensile. mmetụta.
Ọrụ kachasị mkpa nke hydroxypropyl methylcellulose na ngwa agha bụ njigide mmiri. Dị ka cellulose ether admixture na ngwa agha, hydroxypropyl methylcellulose nwere ike iji na ihe fọrọ nke nta niile ngwa ngwa ngwaahịa, tumadi n'ihi na mmiri na-ejigide ya. N'ikwu okwu n'ozuzu, njide mmiri nke hydroxypropyl methylcellulose metụtara viscosity ya, ogo nke nnọchi na nha nha.
Hydroxypropyl methylcellulose na-eji dị ka a thickener, na ndim mmetụta na-metụtara ogo nke nnọchi, urughuru size, viscosity na ogo mgbanwe nke hydroxypropyl methylcellulose. N'ikwu okwu n'ozuzu, ọkwa dị elu nke nnọchi na viscosity nke cellulose ether, na obere ihe ndị ahụ, otú ahụ ka ọ na-apụta ìhè na mmetụta nke na-egbuke egbuke.
Na hydroxypropyl methylcellulose, iwebata otu methoxy na-ebelata ike elu nke ngwọta mmiri nwere hydroxypropyl methylcellulose, nke mere na hydroxypropyl methylcellulose nwere mmetụta na-akpali ikuku na ngwa ngwa ciment. Webata ikuku ikuku kwesịrị ekwesị na ngwa agha, n'ihi "mmetụta bọọlụ" nke ikuku ikuku,
A na-emeziwanye ihe owuwu nke ngwa agha ahụ, ma n'otu oge ahụ, iwebata ikuku ikuku na-eme ka ọnụ ọgụgụ mmepụta nke ngwa agha dịkwuo elu. N'ezie, ọ dị mkpa ka a na-achịkwa ọnụ ọgụgụ nke ikuku-entrament. Nnukwu ikuku-entrainment ga-enwe mmetụta ọjọọ na ike nke ngwa agha.
Hydroxypropyl methylcellulose ga-egbu oge nhazi nke ciment, si otú ahụ na-ebelata nhazi na usoro siri ike nke ciment, na-agbatị oge oghere nke ngwa agha, ma mmetụta a adịghị mma maka ngwa agha na mpaghara oyi.
Dị ka ihe polymer nwere ogologo agbụ, hydroxypropyl methylcellulose nwere ike imeziwanye arụmọrụ nke njikọ na mkpụrụ mgbe etinyere ya na simenti simenti n'okpuru ebe a na-edebe mmiri nke ọma na slurry.
N'ịchịkọta, ihe onwunwe nke HPMC na ngwa agha gụnyere: njide mmiri, ịgbatị, ịgbatị oge nhazi oge, itinye ikuku na imewanye ike njigide tensile, wdg.
Oge nzipu: Eprel-01-2023