Manje njengoba kunezimakethe eziningi neziningi ze-hydroxypropyl carboxyyl celtuleose futhi amanani awalingani, ukuthi unganquma kanjani kalula futhi ngokushesha futhi ngokushesha anqume ikhwalithi ye-hydroxypropyllllll rlulose esephenduke inkinga ebalulekile! Ngakho-ke ukuthi ungahlulela kanjani ikhwalithi ye-hydroxypropyll methylcellulose? Into yokuqala okufanele uyibheke i-Hydroxypropyllylls; Yize ubumsulwa bungakwazi ukubona ukuthi i-HPMC ilungele ukusetshenziswa, abanye abakhiqizi abangathembekile bazofaka i-ejenti yamhlophe ngesikhathi sokucutshungulwa, okuzothinta ikhwalithi yayo. Kepha ngokuvamile ekhuluma, iningi le-celluLose TaleLose TETERS elimhlophe.
Okwesibili, kuya ngobumsulwa be-hydroxypropylll methylcellulose: usayizi we-hydroxypropylr carboxyllllllllllllllllllllllllls cellulose yi-80-100 mesh, kanye ne-hydroxyyethyl hechpmc ecishe ibe yi-100 mesh. Iningi le-HPMC liyi-60-80 mesh. Ngokuvamile, ukuthambisa i-methyl cellulose, ngcono ukuhlakazwa.
Ukucaciswa kwe-cellulose ether kwikhambi: Beka i-HPMC emanzini ukukhiqiza isixazululo se-colloidal esobala, kukhuphuka ukucaca, kukhuphuka izinto zokucacisa.
Lapho impahla ifudunyezwa, i-gels noma amachibi bese iyancibilika. Kuyi-hydrophobic futhi incane. Ukhonkolo uyisibopho esisemqoka futhi unciphise impahla eluhlaza engamelana namanzi. Umgomo wokuphikiswa kwamanzi ngokulandelayo: Lapho i-powder evuselelayo ye-latex kanye nosimende kuxutshwe namanzi, i-latex powder izoqhubeka ibuyela kwifomu lokuqala le-emulsion, futhi izinhlayiya ze-latex zihlakazeka ngokulinganayo ku-slurry cement. Ngemuva kokuhlangana nosimende Ngasikhathi sinye, amakristalu e-Ettringite kanye nama-calcium silar Hard Colloids ayakhiwa, futhi izinhlayiya ze-latex zifakwa ku-gel kanye nezinhlayiya zensimbi engaphekiwe, njengoba imikhiqizo ye-hydration iyaqhubeka nokukhula, kanye nezinhlayiya ze-latex kancane kancane Hlangana ne-Voidles yezinto ezibonakalayo ezinjengesimende, bese wakhe ungqimba olugcwele kakhulu ngaphezulu kwejeli lesimende. , ngenxa yokuncishiswa kancane kancane komswakama owomile, izinhlayiya ze-latex ezihlelwe kakhulu e-Gel kanye nama-voids ahlanganisa ukwakha i-matrix eqhubekayo, nokwenza unamathisela usimende kanye namanye amakhasa ama-agregates ziyagcotshwa komunye nomunye.
Isikhathi sePosi: Meyi-11-2023