N'ime ngwa agha, cellulose ether na-arụ ọrụ nke njide mmiri, na-eme ka mmiri sie ike, na-egbu oge ike hydration ciment, na imeziwanye arụmọrụ ihe owuwu. Ikike njide mmiri dị mma na-eme ka hydration ciment zuo oke, nwere ike melite viscosity mmiri nke ngwa mmiri mmiri, na-abawanye ike njikọ nke ngwa agha, ma dozie oge. Ịtinye cellulose ether na ngwa agha ịgbasa igwe nwere ike imeziwanye ọrụ ịgbasa ma ọ bụ ịgbapụta na ike nhazi nke ngwa agha ahụ. A na-eji cellulose eme ihe n'ọtụtụ ebe dị ka ihe mgbakwunye dị mkpa n'ime ngwa agha agwakọtara agwakọta. N'iji mpaghara nke ihe owuwu ụlọ dị ka ihe atụ, cellulose ether nwere ihe ndị magburu onwe ya dị ka ịgbatị, njide mmiri, na nkwụsị. Ya mere, a na-eji ihe eji eme ụlọ cellulose ether eme ihe n'ọtụtụ ebe iji melite mmepụta ngwa ngwa ngwa ngwa (gụnyere ngwa ngwa agwakọta mmiri na mmiri akọrọ), resin PVC, wdg, agba latex, putty, wdg, gụnyere arụmọrụ nke. ụlọ ihe onwunwe ngwaahịa.
Cellulose nwere ike igbu oge usoro hydration nke ciment. Cellulose ether na-enye ngwa agha nwere ihe bara uru dị iche iche, ma na-ebelata okpomọkụ nke mbụ nke ciment ma na-egbu oge usoro hydration ike nke ciment. Nke a adịghị mma maka iji ngwa agha na mpaghara oyi. A na-akpata mmetụta nkwụghachi azụ a site na ntinye nke cellulose ether molecules na ngwaahịa hydration dị ka CSH na ca (OH) 2. N'ihi mmụba nke viscosity nke ngwọta pore, cellulose ether na-ebelata mmegharị nke ion na ngwọta, si otú ahụ na-egbu oge usoro hydration. N'ịdị elu nke cellulose ether na ihe gel ịnweta, ka mmetụta nke igbu oge hydration na-apụtawanye ìhè. Cellulose ether ọ bụghị naanị na-egbu oge nhazi, kamakwa ọ na-egbu oge usoro siri ike nke usoro ciment mortar. Mmetụta retarding nke cellulose ether na-adabere ọ bụghị nanị na ntinye ya na sistemụ ịnweta gel, kamakwa na usoro kemịkal. N'ịdị elu nke methylation nke HEMC, ka mma na-ebelata mmetụta nke cellulose ether. Oke nke nnọchi hydrophilic na nnọchi na-abawanye mmiri Mmetụta azụ azụ ka siri ike. Otú ọ dị, viscosity nke cellulose ether enwechaghị mmetụta na ciment hydration kinetics.
Site na mmụba nke ọdịnaya nke hydroxypropyl methylcellulose ether, nhazi oge nke ngwa agha mụbara nke ukwuu. Enwere ezigbo mmekọrịta na-adịghị n'ịntanetị n'etiti mmalite mmalite oge nke ngwa agha na ọdịnaya nke cellulose ether, yana ezigbo njikọ dị n'etiti oge nhazi ikpeazụ na ọdịnaya nke cellulose ether. Anyị nwere ike ijikwa oge arụ ọrụ nke ngwa agha ahụ site n'ịgbanwe ọnụọgụ cellulose ether.
Oge nzipu: Mar-09-2023