I-ether ye-celluloseingathuthukisa kakhulu ukusebenza kwe-mortar emanzi, futhi iyisengezo esiyinhloko esithinta ukusebenza kokwakhiwa kwe-mortar. Ukukhetha okunengqondo kwama-ether e-cellulose ezinhlobo ezahlukene, ukuqina okuhlukile, ubukhulu bezinhlayiya ezahlukene, amazinga ahlukene e-viscosity kanye namanani engeziwe kuzoba nomthelela omuhle ekuthuthukisweni kokusebenza kwe-mortar e-dry powder.
Kukhona futhi ubudlelwano obuhle obuqondile phakathi kokuvumelana kwe-cement paste kanye nomthamo we-cellulose ether. I-Cellulose ether ingakhulisa kakhulu i-viscosity ye-mortar. Uma umthamo umkhulu, umphumela uba sobala kakhulu. Isixazululo samanzi se-cellulose ether esine-viscosity ephezulu sine-thixotropy ephezulu, okuyisici esiyinhloko se-cellulose ether.
Umphumela wokujiya uncike ezingeni lokupholimetha kwe-cellulose ether, ukuhlushwa kwesisombululo, izinga lokucheba, izinga lokushisa nezinye izimo. Impahla ye-gelling yesisombululo ihlukile ku-alkyl cellulose kanye ne-derivatives yayo eguquliwe. Izakhiwo ze-gelation zihlobene nezinga lokushintsha, ukuhlushwa kwesisombululo kanye nezithasiselo. Kuma-derivatives aguquliwe e-hydroxyalkyl, izakhiwo ze-gel zihlobene nezinga lokuguqulwa kwe-hydroxyalkyl. Isixazululo esingu-10%-15% singalungiselelwa i-MC ne-HPMC ene-viscosity ephansi, isixazululo esingu-5%-10% singalungiselelwa i-MC ne-HPMC ene-viscosity ephakathi nendawo, kanti isixazululo esingu-2%-3% singalungiselelwa kuphela i-MC ne-HPMC ene-viscosity ephezulu. Ngokuvamile ukuhlukaniswa kwe-viscosity kwe-cellulose ether nakho kulinganiswa ngesisombululo esingu-1%-2%.
Isisindo sama-molecule aphezului-cellulose etherine-high efficiency yokujiya. Ama-polymer anesisindo sama-molecule ahlukene ane-viscosities ehlukene kusisombululo esifanayo sokujiya. Izinga eliphezulu. I-target viscosity ingatholakala kuphela ngokungeza inani elikhulu le-low molecular weight cellulose ether. I-viscosity yayo ayincikile kakhulu esilinganisweni sokucheba, futhi i-viscosity ephezulu ifinyelela i-target viscosity, futhi inani elidingekayo lokwengeza lincane, futhi i-viscosity incike ekusebenzeni kahle kokujiya. Ngakho-ke, ukuze kufezwe ukuvumelana okuthile, inani elithile le-cellulose ether (ukugxilwa kwesisombululo) kanye ne-viscosity yesisombululo kumele kuqinisekiswe. Izinga lokushisa le-gel lesisombululo nalo liyehla ngokuhambisana nokwanda kokugxilwa kwesisombululo, kanye nama-gel ekushiseni kwegumbi ngemva kokufinyelela ukugxilwa okuthile. I-gelling concentration ye-HPMC iphakeme kakhulu ekushiseni kwegumbi.
Isikhathi sokuthunyelwe: Ephreli-28-2024