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Udaka oluxutyiweyo olumanzi lubhekiselele kwimathiriyeli yesamente, iaggregate entle, umxube, amanzi kunye nezinto ezahlukeneyo ezigqitywe ngokokusebenza. Ngokomlinganiselo othile, emva kokulinganiswa kunye nokuxutywa kwisikhululo sokuxuba, sithuthelwa kwindawo yokusetyenziswa iloli yomxube. Gcina i...Funda ngokugqithisileyo»
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Iindidi ze-admixtures ezisetyenziswa ngokuqhelekileyo ekwakheni udaka olomileyo, iimpawu zabo zokusebenza, indlela yokusebenza, kunye nefuthe labo ekusebenzeni kweemveliso zodaka ezinomxube owomileyo. Impembelelo yokuphucula i-agent yokugcina amanzi njenge-cellulose ether kunye ne-starch ether, i-dispersible ...Funda ngokugqithisileyo»
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Ngenkqubela phambili eqhubekayo yoshishino kunye nokuphuculwa kobugcisa, ngokungeniswa kunye nokuphuculwa koomatshini bokutshiza udaka lwangaphandle, ukutshiza ngoomatshini kunye nobugcisa bokutyabeka buphuhliswe kakhulu kwilizwe lam kwiminyaka yakutshanje. Udaka lomatshini lokutshiza lu ...Funda ngokugqithisileyo»
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1. Ikhemikhali yemihla ngemihla i-hydroxypropyl methylcellulose uhlobo olukhawulezayo ngumgubo omhlophe okanye otyheli kancinci, kwaye ayinavumba, ayinancasa kwaye ayinayo ityhefu. Inokunyibilika emanzini abandayo kunye ne-solvent edibeneyo yezinto eziphilayo ukwenza isisombululo esicacileyo se-viscous. Isinyibiliko samanzi sinomphezulu...Funda ngokugqithisileyo»
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IHydroxyethyl cellulose (HEC) yintsika emhlophe okanye ekhanyayo, engenavumba, engeyotyhefu okanye eqinileyo. Yenziwe ngeelitha zomqhaphu ekrwada okanye ipulp esulungekileyo efakwe kwi-30% yesoda yolwelo lwe-caustic. Emva kwesiqingatha seyure, iyakhutshwa kwaye icinezelwe. Gcoba de umlinganiselo wamanzi e-alkaline ufike kwi-1: 2.8, emva koko ...Funda ngokugqithisileyo»
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1. Yiyiphi imisebenzi ye-latex powder ephinda ihlakazwe kwi-mortar? Impendulo: I-latex powder ehlaziywayo ibunjwe emva kokusasazeka kwaye yenza njenge-adhesive yesibini yokuphucula ibhondi; i-colloid ekhuselayo ifunxwa yinkqubo yodaka (ayiyi kuthiwa itshatyalaliswe emva kokubunjwa. Okanye i-dis...Funda ngokugqithisileyo»
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Udaka oluxutywe manzi yisamente, iaggregate ecolekileyo, ingxubevange, amanzi kunye nezinto ezahlukeneyo ezimiselwe ngokokusebenza. Ngokomlinganiselo othile, emva kokulinganiswa kunye nokuxutywa kwisikhululo sokuxuba, sithuthelwa kwindawo yokusetyenziswa yilori yomxube, kwaye ifakwe kwindawo ekhethekileyo emanzi ...Funda ngokugqithisileyo»
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I-Admixtures idlala indima ephambili ekuphuculeni ukusebenza kwesakhiwo sodaka oluxutyiweyo, kodwa ukongezwa kodaka oluxutyiweyo oluxubeneyo kwenza ukuba iindleko zempahla yemveliso yodaka eyomileyo ibe phezulu kakhulu kunodaka lwemveli, olubalelwa ngaphezulu kwe-40% yodaka. ixabiso lezinto eziphathekayo kumxube owomileyo ...Funda ngokugqithisileyo»
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I-Hydroxypropyl methylcellulose yenziwe kwi-cotton cellulose ecocekileyo kakhulu ngokusebenzisa i-etherification ekhethekileyo phantsi kweemeko ze-alkaline, kwaye yonke inkqubo igqitywe phantsi kolawulo oluzenzekelayo. Ayinyibiliki kwi-ether, i-acetone kunye ne-ethanol epheleleyo, kwaye idumba ibe yicollo ecacileyo okanye enamafu kancinci...Funda ngokugqithisileyo»
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Umlinganiselo othile we-hydroxypropyl methylcellulose ether ugcina amanzi kumdaka ixesha elaneleyo lokukhuthaza i-hydration eqhubekayo ye-cement kunye nokuphucula ukubambelela phakathi kodaka kunye ne-substrate. Impembelelo yobungakanani beNcam kunye nexesha lokuxuba leHydroxypropyl Methyl Cellulose Etere ...Funda ngokugqithisileyo»
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I-ether ye-cellulose luhlobo lwezinto eziphuma kwi-polymer yendalo, eneempawu ze-emulsification kunye nokumiswa. Phakathi kweentlobo ezininzi, i-HPMC yeyona nto iphezulu kwaye isetyenziswa kakhulu, kwaye imveliso yayo isanda ngokukhawuleza. Kwiminyaka yakutshanje, enkosi kukukhula kwe...Funda ngokugqithisileyo»
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I-Hydroxypropyl methylcellulose (HPMC) yi-ether ye-cellulose engeyiyo ionic eyenziwe kwi-cellulose yezinto ze-polymer yendalo ngokusebenzisa uchungechunge lweenkqubo zemichiza. Azinavumba, azinancasa kwaye zingumgubo omhlophe ongenatyhefu othi udumbe ube sisinyibiliko esicacileyo okanye esinamafu kancinane kwi-colloidal kumanzi abandayo. Iye ya...Funda ngokugqithisileyo»