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Inani le-HPMC elisetshenziswa ezisetshenziswayo liyahlukahluka kuye ngesimo sezulu, izinga lokushisa, ikhwalithi yempuphu ye-calcium yomlotha yendawo, ifomula yempuphu ye-putty kanye "nekhwalithi edingekayo kumakhasimende". Ngokuvamile, liphakathi kuka-4 kg no-5 kg. Isibonelo: iningi lempuphu ye-putty ku-B...Funda kabanzi»
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Omunye wemehluko omkhulu phakathi kodaka oluxutshwe okomile nodaka lwendabuko ukuthi udaka oluxutshwe okomile luguqulwa ngenani elincane lezithasiselo zamakhemikhali. Ukwengeza isithasiselo esisodwa kudaka oluyimpuphu eyomile kubizwa ngokuthi ukuguqulwa okuyinhloko, ukwengeza izithasiselo ezimbili noma ngaphezulu kubizwa ngokuthi ukuguqulwa kwesibili...Funda kabanzi»
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I-desulfurization gypsum iyigesi yomoya ekhiqizwa ukushiswa kwamafutha aqukethe isibabule (amalahle, uphethiloli), imfucuza eqinile yezimboni ekhiqizwa ngesikhathi senqubo yokuhlanzwa kwe-desulfurization, kanye ne-hemihydrate gypsum (ifomula yamakhemikhali i-CaSO4· 0.5H2O), ukusebenza kufana nokwe-na...Funda kabanzi»
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I-Hydroxypropyl methylcellulose (HPMC) idlala indima yokugcina amanzi, ukuqina kanye nokuthuthukisa ukusebenza kokwakhiwa kusimende, i-gypsum kanye nezinye izinto zempuphu. Ukusebenza okuhle kakhulu kokugcina amanzi kungavimbela ngempumelelo impuphu ukuthi yome futhi iqhekeke ngenxa yamanzi amaningi...Funda kabanzi»
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Eminyakeni yamuva nje, ngentuthuko eqhubekayo yobuchwepheshe bokufudumeza udonga lwangaphandle, intuthuko eqhubekayo yobuchwepheshe bokukhiqiza i-cellulose, kanye nezici ezinhle kakhulu ze-HPMC uqobo, i-HPMC isetshenziswe kabanzi embonini yokwakha. Ukuze kuhlolwe kabanzi indlela yokusebenza ...Funda kabanzi»
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Igama lesiShayina le-HPMC yi-hydroxypropyl methylcellulose. Ayiyona i-ionic futhi ivame ukusetshenziswa njenge-ejenti yokugcina amanzi ku-mortar exutshwe okomile. Yinto evame ukusetshenziswa kakhulu yokugcina amanzi ku-mortar. Inqubo yokukhiqiza ye-HPMC ngokuyinhloko umkhiqizo we-ether osuselwa ku-polysaccharide okhiqizwa yi-...Funda kabanzi»
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1. Izinkinga ezivamile ku-putty powder Ukomisa ngokushesha kubangelwa kakhulu inani le-calcium powder yomlotha engeziwe (inkulu kakhulu, inani le-calcium powder yomlotha esetshenziswa ku-putty formula lingancishiswa ngokufanele) kuhlobene nesilinganiso sokugcina amanzi se-fiber, futhi kuhlobene nokoma kwe...Funda kabanzi»
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Ku-mortar exutshwe ngomumo, inqobo nje uma i-cellulose ether encane ingathuthukisa kakhulu ukusebenza kwe-mortar emanzi, kungabonakala ukuthi i-cellulose ether iyisengezo esiyinhloko esithinta ukusebenza kokwakhiwa kwe-mortar. Ukukhethwa kwezinhlobo ezahlukene, ukuqina okuhlukile,...Funda kabanzi»
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Isici esibaluleke kakhulu se-cellulose ether ukugcina amanzi ezintweni zokwakha. Ngaphandle kokwengezwa kwe-cellulose ether, ungqimba oluncane lwe-mortar entsha loma ngokushesha kangangokuthi usimende awukwazi ukumanzisa ngendlela evamile futhi i-mortar ayikwazi ukuqina futhi ifinyelele ukuhlangana okuhle. Ku...Funda kabanzi»
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Imikhiqizo yamavithamini yonke itholakala ku-pulp yekotini yemvelo noma ku-pulp yokhuni, ekhiqizwa nge-etherification. Imikhiqizo ehlukene ye-cellulose isebenzisa ama-etherifying agents ahlukene. I-etherifying agent esetshenziswa ku-hydroxyethyl cellulose (HEC) yi-ethylene oxide, kanti i-etherifying agent esetshenziswa ku-hydroxy...Funda kabanzi»
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Ukusetshenziswa kwe-hydroxypropyl methylcellulose ku-mortar yokwakha i-plastering mortar Ukugcinwa kwamanzi amaningi kungenza usimende ube namanzi aphelele, kwandise kakhulu amandla e-bond, futhi ngasikhathi sinye, kungandisa ngokufanele amandla okubamba kanye namandla okucheba, kuthuthukise kakhulu...Funda kabanzi»
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A. Isidingo sokugcinwa kwamanzi Ukugcinwa kwamanzi kwesimende kubhekisela ekhonweni lesimende lokugcina amanzi. Isimende esinokugcinwa kwamanzi okungekuhle sivame ukopha nokuhlukaniswa ngesikhathi sokuthuthwa nokugcinwa, okungukuthi, amanzi ayantanta phezulu, bese isihlabathi nesimende sicwila ngaphansi. Kumelwe kube ...Funda kabanzi»