E-pular, i-ether ye-cellulose idlala indima yokugcinwa kwamanzi, ukuqina, ukubambezela amandla kasimende we-hydration, kanye nokwenza ngcono ukusebenza kokwakha. Umthamo omuhle wokugcina amanzi wenza i-perment hydration ephelele ngokwengeziwe, ingathuthukisa ukubonwa okumanzi kodaka olumanzi, yandisa amandla eBonding oDinga, bese ulungisa isikhathi. Ukungeza i-cellulose ether ku-mechan fafaza udaka kungathuthukisa ukufafaza noma ukupompa ukusebenza kanye namandla enhlaka ngodaka. I-Cellulose isetshenziswa kabanzi njengesengezo esibalulekile ku-divarater elungiselelwe ngomumo. Ukuthatha insimu yezinto zokwakha njengesibonelo, i-cellulose ether inezakhiwo ezinhle kakhulu njengokuqina, ukugcinwa kwamanzi kanye nokubuyiselwa emuva. Ngakho-ke, ukwakha Ibanga le-cellulose ether kusetshenziswa kabanzi ukuthuthukisa ukukhiqizwa kodaka oluhlanganisiwe (kufaka phakathi nodaka oluxutshwe nodaka oluxutshwe nodaka), i-PVC resin, njll. ukwakha imikhiqizo yezinto ezibonakalayo.
I-cellulose ingabambezela inqubo ye-hydration ka usimende. I-CelluleOse ether ifaka ngodaka ngezakhiwo ezahlukahlukene ezizuzisayo, futhi iphinde inciphise ukushisa kwe-hydration kokuqala kosimende nokubambezeleka kwenqubo enamandla kasimende. Lokhu akuthandeki ukusetshenziswa kodaka ezindaweni ezibandayo. Lo mphumela wokubuyiselwa emuva ubangelwa yi-adsorption of cellulose ether molecule emikhiqizweni ye-hydration efana ne-CSH ne-CA (oh) 2. Ngenxa yokwanda kokubonakala kwesisombululo se-pore, i-cellulose ether inciphisa ukuhamba kwama-ion kwikhambi, ngaleyo ndlela libambezele inqubo ye-hydration. Lapho kukhuphuka ukugcwala kwe-cellulose ether ezintweni ezimbiwe yi-mineral gel, okushiwo ngokwengeziwe umphumela wokubambezeleka kwe-hydration. I-Cellulose eTR ayigcini ngokubambezeleka kokuhleleka, kepha futhi ibambezeleka futhi inqubo enzima yohlelo lokugcina usimende. Umphumela wokugcina kabusha we-cellulose ether awunawo kuphela ukugxila kwawo kuhlelo lwe-gel lwamaminerali, kodwa futhi nasesakhiweni samakhemikhali. Iphakeme izinga le-methylation ye-hemc, ngcono umphumela wokubuyisa we-cellulose ether. Isilinganiso sokufakwa esikhundleni se-hydrophilic ekungeneleleni kwamanzi umphumela umphumela wokubuyisa unamandla. Kodwa-ke, ukubonakala kwe-cellulose ether kunomthelela omncane kuma-kinetics we-cement hydration.
Ngokukhuphuka kokuqukethwe kwe-hydroxypropyllylylyllose ether, isikhathi sokubeka kodaka sanda kakhulu. Kunokuhlobana okuhle kwe-nonlinear phakathi nesikhathi sokuqala sokusetha kodaka nokuqukethwe kwe-cellulose ether, kanye nokuxhumeka okuhle okuqondile phakathi nesikhathi sokugcina sokugcina nokuqukethwe kwe-cellulose ether. Singalawula isikhathi sokusebenza sodaka ngokushintsha inani le-cellulose ether.
Isikhathi sePosi: Mar-09-2023