Mgbe ịgbakwunye hydroxypropyl methylcellulose na ihe ndị sitere na ciment, ọ nwere ike itolite. Ọnụ ọgụgụ nke hydroxypropyl methylcellulose na-ekpebi ọchịchọ mmiri nke ihe ndị dabeere na ciment, ya mere ọ ga-emetụta mmepụta nke ngwa agha.
Ọtụtụ ihe na-emetụta viscosity nke hydroxypropyl methylcellulose:
1. Ihe dị elu nke polymerization nke cellulose ether, na-ebuwanye ibu arọ ya, na elu viscosity nke ngwọta mmiri;
2. Ihe dị elu nke oriri (ma ọ bụ itinye uche) nke cellulose ether, nke dị elu nke viscosity nke ngwọta mmiri ya. Otú ọ dị, ọ dị mkpa ịṅa ntị na ịhọrọ nri kwesịrị ekwesị n'oge ngwa iji zere ịṅụbiga mmanya ókè, nke ga-emetụta ọrụ nke ngwa agha na ihe. njirimara;
3. Dị ka ọtụtụ mmiri mmiri, viscosity nke cellulose ether ngwọta ga-ebelata na mmụba nke okpomọkụ, na elu nke ịta nke cellulose ether, ukwuu mmetụta nke okpomọkụ;
4. Hydroxypropyl methylcellulose ngwọta na-abụkarị pseudoplastic, nke nwere ihe onwunwe nke ịkpụ ntutu. Ọnụ ọgụgụ ka ukwuu n'oge ule, na-ebelata viscosity.
Ya mere, njikọ nke ngwa agha ga-ebelata n'ihi ike dị n'èzí, nke bara uru maka ịkwanye ihe owuwu nke ngwa agha, na-eme ka arụ ọrụ dị mma na njikọ nke ngwa agha n'otu oge.
Ihe ngwọta hydroxypropyl methylcellulose ga-egosi njirimara mmiri Newtonian mgbe ntinye uche dị ntakịrị na viscosity dị ala. Mgbe ntinye uche na-abawanye, ihe ngwọta ga-eji nwayọọ nwayọọ na-egosi njirimara mmiri mmiri pseudoplastic, na nke dị elu nke ntinye uche, otú ahụ ka pseudoplasticity na-apụta ìhè.
Oge nzipu: Jan-28-2023