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Ngentuthuko eqhubekayo embonini kanye nokuthuthukiswa kobuchwepheshe, ngokwethulwa nokuthuthukiswa kwemishini yokufutha ngodaka yangaphandle, ubuchwepheshe bokufutha nokufaka uplasta ngomshini buthuthukiswe kakhulu ezweni lakithi eminyakeni yamuva nje. Udaka lokufutha ngomshini lu...Funda kabanzi»
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1. Uhlobo lwe-instant hydroxypropyl methylcellulose oluyi-instant fluid olumhlophe noma oluphuzi kancane, futhi alunaphunga, alunambitheki futhi alunabuthi. Lungancibilikiswa emanzini abandayo kanye nesinyibilikisi esixubile sezinto eziphilayo ukuze kwakhiwe isixazululo esibonakalayo esiqinile. Isixazululo samanzi sinobuso...Funda kabanzi»
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I-Hydroxyethyl cellulose (HEC) iyisithako esimhlophe noma esiphuzi esikhanyayo, esingenaphunga, esingenabo ubuthi esine-fibrous noma esifana nempuphu. Yenziwe ngama-linters kakotini aluhlaza noma i-pulp ecolisisiwe efakwe ku-30% we-caustic soda ewuketshezi. Ngemva kwesigamu sehora, iyakhishwa bese icindezelwa. Cindezela kuze kube yilapho isilinganiso samanzi e-alkaline sifinyelela ku-1:2.8, bese...Funda kabanzi»
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1. Yimiphi imisebenzi yempuphu ye-latex ephinde ihlakazeke ku-mortar? Impendulo: Impuphu ye-latex ephinde ihlakazeke ibunjwa ngemva kokuhlakazeka futhi isebenza njengesinamathiseli sesibili ukuze kuthuthukiswe isibopho; i-colloid evikelayo imuncwa uhlelo lwe-mortar (ngeke kuthiwe iyabhujiswa ngemva kokubunjwa. Noma...Funda kabanzi»
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Udaka oluxutshwe ngamanzi luyi-samente, i-aggregate encane, ingxube, amanzi kanye nezingxenye ezahlukahlukene ezinqunywa ngokusebenza. Ngokwesilinganiso esithile, ngemva kokulinganiswa nokuhlanganiswa esiteshini sokuxuba, luthuthwa luye endaweni yokusetshenziswa yiloli yokuxuba, bese lufakwa endaweni ekhethekile.Funda kabanzi»
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Izingxube zidlala indima ebalulekile ekuthuthukiseni ukusebenza kokwakha udaka oluxutshwe okomile, kodwa ukungezwa kodaka oluxutshwe okomile kwenza izindleko zezinto zokwakha imikhiqizo yodaka oluxutshwe okomile zibe phezulu kakhulu kunezodaka zendabuko, ezibiza ngaphezu kwama-40% ezindleko zezinto zokwakha ku-dry-mixed ...Funda kabanzi»
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I-Hydroxypropyl methylcellulose yenziwe nge-cellulose ecotton emsulwa kakhulu ngokusebenzisa i-etherification ekhethekile ngaphansi kwezimo ze-alkaline, futhi yonke inqubo iqedwa ngaphansi kokuqapha okuzenzakalelayo. Ayincibiliki ku-ether, i-acetone kanye ne-ethanol ephelele, futhi ivuvukala ibe yi-collo ecacile noma enamafu kancane...Funda kabanzi»
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Inani elithile le-hydroxypropyl methylcellulose ether ligcina amanzi ku-mortar isikhathi esanele ukukhuthaza ukumuncwa okuqhubekayo kwesimende nokuthuthukisa ukunamathelana phakathi kwe-mortar ne-substrate. Umphumela Wobukhulu Bezinhlayiyana Nesikhathi Sokuxuba se-Hydroxypropyl Methyl Cellulose Ether ...Funda kabanzi»
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I-Cellulose ether uhlobo lwezinto zemvelo ezithathwe ku-polymer, ezinezici ze-emulsification kanye ne-suspension. Phakathi kwezinhlobo eziningi, i-HPMC iyona ekhiqiza kakhulu futhi esetshenziswa kakhulu, futhi umkhiqizo wayo uyanda ngokushesha. Eminyakeni yamuva nje, ngenxa yokukhula...Funda kabanzi»
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I-Hydroxypropyl methylcellulose (HPMC) iyi-non-ionic cellulose ether eyenziwe nge-cellulose yemvelo ye-polymer ngokusebenzisa uchungechunge lwezinqubo zamakhemikhali. Ziyimpuphu emhlophe engenaphunga, engenambitheki futhi engenabuthi evuvukala ibe yisisombululo se-colloidal esicacile noma esinamafu kancane emanzini abandayo. Ine...Funda kabanzi»
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Impuphu enamathelayo ye-Gypsum (impuphu eyomisa ngokushesha) (Iresiphi 1) Isilinganiso se-Binder (kg) Impuphu ye-latex ephinde ihlakazeke 5-5.5 I-Gypsum retarder 0.5-1 Impuphu ye-Paris plaster (ubumhlophe ngaphezu kwama-85) 750 I-calcium esindayo (impuphu ephindwe kabili) 250 Ukunamathela okuqinile, isikhathi sokuvula imizuzu engama-20-30. Impuphu eyomile ...Funda kabanzi»
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I-non-ionic cellulose ether iyinto ebalulekile yamakhemikhali edingekayo embonini yezinto zokwakha kanye nemboni yokumboza. Njengamanje, ngaphansi kwesizinda sokwanda okuqhubekayo kwenani eliphelele lomkhiqizo wemboni yokwakha yasekhaya kanye nokwanda okuqhubekayo kokumboza...Funda kabanzi»