I-Cellulose Ether- Ukuqina kanye ne-Thixotropy
I-ether ye-celluloseInika udoti omanzi i-viscosity enhle kakhulu, engakhulisa kakhulu ukunamathelana phakathi kodoti omanzi kanye nesendlalelo sesisekelo, ithuthukise ukusebenza kokulwa nokugeleza kodoti, futhi isetshenziswa kabanzi ekuplasteni udoti, udoti wokubopha amathayela e-ceramic, kanye nohlelo lokuvikela udonga lwangaphandle. Umphumela wokujiya we-cellulose ether ungandisa nekhono lokulwa nokusabalala kanye nokufana kwezinto ezintsha, futhi uvimbele ukuhlukaniswa kwezinto, ukuhlukaniswa, kanye nokuvuza. Ingasetshenziswa kukhonkolo eqiniswe ngefayibha, kukhonkolo engaphansi kwamanzi, kanye nakokhonkolo ozimele.
Umphumela wokujiya wei-cellulose etherezintweni ezisekelwe kusimende kuvela ekuqineni kwesisombululo se-cellulose ether. Ngaphansi kwezimo ezifanayo, kulapho ukuqineka okuphezului-cellulose ether, uma i-viscosity yezinto ezisekelwe kusimende eziguquliwe ingcono. Kodwa-ke, uma i-viscosity iphakeme kakhulu, izothinta ukugeleza nokusebenza kwezinto (njengemimese yokuplasta). Udaka oluzilinganisayo, ukhonkolo oluzihlanganisayo, njll. ludinga uketshezi oluphezulu, kanti i-viscosity ye-cellulose ether iphansi kakhulu. Ngaphezu kwalokho, umphumela wokujiya we-cellulose ether uzokwandisa nesidingo samanzi se-substrate yesimende futhi wandise ukukhiqizwa kodaka.
Isixazululo samanzi se-ether ye-cellulose ene-viscosity ephezulu sine-thixotropy ephezulu, okuyisici se-ether ye-cellulose. Isixazululo samanzi se-methyl cellulose ngokuvamile sinezimpawu zokugeleza ze-pseudoplastic kanye ne-non-thixotropic eziphansi kunezinga lokushisa lejeli, kodwa sibonisa ukugeleza kwe-Newtonian ngesivinini esiphansi sokushefa. Kungakhathaliseki uhlobo kanye nezinga lokushintshaniswa kwezinto ezithatha indawo, i-pseudoplasticity iyanda ngokukhuphuka kwesisindo sama-molecule noma ukuhlushwa kwe-ether ye-cellulose. Ngakho-ke, uma nje ukuhlushwa kanye nokushisa kuhlala kungaguquki, ama-ether e-cellulose anebanga elifanayo le-viscosity (kungakhathaliseki ukuthi i-MC,I-HPMC, I-HEMC) zihlala zibonisa izakhiwo ezifanayo ze-rheological. Lapho izinga lokushisa likhuphuka, kwakheka ijeli yesakhiwo futhi kwenzeka ukugeleza okuphezulu kwe-thixotropic.
I-ether ye-celluloseAbakhiqizi bakutshela ukuthi i-cellulose ether enezinga eliphezulu kanye ne-viscosity ephansi ine-thixotropy ngisho nangaphansi kokushisa kwejeli. Lesi sici siwusizo kakhulu ekwakhiweni kwe-mortar ukulungisa ukuleveli kwayo kanye nokuwa kwayo. Kufanele kuqashelwe ukuthi i-viscosity ephezulu yei-cellulose ether, kulapho ukugcinwa kwamanzi kwayo kukhuphuka khona. Kodwa-ke, lapho i-viscosity iphakeme, kulapho isisindo sama-molecule se-cellulose ether sikhuphuka khona, kanye nokwehla okuhambisanayo kokuncibilika kwayo. Kunomthelela omubi ekugxilweni nasekucutshungulweni kwe-mortar.
I-Cellulose Ether- Kulibazisekile
I-ether ye-celluloseKungandisa isikhathi sokusetha i-slurry noma i-mortar yesimende, kubambezele i-hydration kinetics ye-samente, futhi kuthuthukise impilo yesevisi yezinto ezintsha, ngaleyo ndlela kuthuthukiswe ukuhambisana kokuwa phakathi kwe-mortar ne-concrete. Izinga lokulahlekelwa ngokuhamba kwesikhathi, kodwa futhi kungase kubambezele inqubekela phambili yokwakha.
Isikhathi sokuthunyelwe: Agasti-25-2023