I-Carboxymethyl cellulose CMC, isitashi se-sodium carboxymethyl (CMS), intengo ishibhile (kusukela ekusebenzeni komkhiqizo ngokwawo, i-CMC iyibanga eliphansi kune-Fuying HPMC), i-carboxymethyl cellulose isetshenziselwa i-putty yezinga eliphansi le-putty yezindonga zangaphakathi Phakathi kwazo. , ukugcinwa kwamanzi nokuzinza kubi kakhulu kunaleyo ye-hydroxypropyl methylcellulose, ngakho-ke ayikwazi ukusetshenziselwa i-putty engangeni manzi kanye nengxube eyomile yokushisa yangaphandle.
Abantu abaningi bacabanga ukuthi lama cellulose ane-alkaline, kanti usimende ne-lime calcium powder nakho kuyi-alkaline, futhi bacabanga ukuthi ingasetshenziswa ngokuhlangana, kodwa i-carboxymethyl cellulose ne-sodium carboxymethyl isitashi akuzona izakhi zodwa, kanye ne-chloroacetic acid esetshenziswa ekukhiqizeni kwabo. I-acidic, futhi izinto ezisele ohlelweni lokukhiqiza i-cellulose zisabela ngosimende kanye ne-lime calcium powder, ngakho azikwazi ukuhlanganiswa. Abakhiqizi abaningi baye balahlekelwa kakhulu ngenxa yalokhu, ngakho-ke kufanele kuqashelwe. Ukusetshenziswa kwe-carboxymethyl cellulose kanye ne-hydroxypropyl methyl cellulose kufana kuphela, kodwa imisebenzi yabo ihluke kakhulu, futhi izinkomba zobuchwepheshe zalezi zimbili zihlukene kakhulu. Izinto zokusetshenziswa eziyinhloko zalezi zimbili ziwukotini ocolisisiwe ofanayo, kodwa izinto ezisizayo, izinto zokukhiqiza, nokugeleza kwenqubo kuhlukile. Imishini yokukhiqiza kanye nenqubo ye-hydroxypropyl methylcellulose kuyinkimbinkimbi kakhulu. Okubili akuyona inqubo yokukhiqiza nhlobo, nezinye izesekeli nazo zihlukile, ngakho-ke ukusetshenziswa nakho kuhlukile. Azikwazi ukushintshwa, futhi azikwazi ukuhlanganiswa nomunye nomunye ukuze kuncishiswe izindleko.
I-Hydroxypropyl methylcellulose (hpmc) inezinto zamakhemikhali ezizinzile, ukumelana nesikhutha, ukugcinwa kwamanzi okungcono kakhulu kanye nomphumela wokujiya, futhi ayithinteki izinguquko ze-pH. I-viscosity ye-100,000 ifanele i-putty powder, futhi i-viscosity ye-150,000 kuya ku-200,000 ifanele i-putty powder. Esakhiweni, ngokuyinhloko kwandisa impahla yokulinganisa kanye nokwakhiwa, futhi kunganciphisa inani likasimende.
Umsebenzi wukuthi udaka lukasimende lunesikhathi sokuqiniswa, futhi ludinga ukunakekelwa ngesikhathi sokuqiniswa, futhi ludinga ukuhlinzekwa ngamanzi ukuze luhlale lumanzi. Ngenxa yomphumela wokugcina amanzi we-cellulose, amanzi adingekayo ukuze kuqiniswe udaka lukasimende aqinisekisiwe kusukela ekugcinweni kwamanzi kwe-cellulose, ngakho umphumela wokuqinisa ungafinyelelwa ngaphandle kokugcinwa.
Isikhathi sokuthumela: Apr-21-2023