I-Hydroxypropyl methylcellulose (HPMC) yi-ether ye-cellulose engeyiyo ionic eyenziwe kwi-cellulose yezinto ze-polymer yendalo ngokusebenzisa uchungechunge lweenkqubo zemichiza.I-Hydroxypropylmethylcellulose (HPMC) yimpuphu emhlophe engenavumba, engenancasa, engenatyhefu enokuthi inyibilikiswe emanzini abandayo ukuze yenze isisombululo se-viscous esicacileyo.Ineempawu zokuqina, ukubopha, ukusabalalisa, i-emulsifying, ifilimu-ifom, ukumisa, i-adsorbing, i-gelling, i-surface esebenzayo, ukugcina umswakama kunye nokukhusela i-colloid.Ngodaka, umsebenzi obalulekileyo we-hydroxypropyl methylcellulose kukugcinwa kwamanzi, okukwazi ukukwazi ukugcina amanzi.
1. Ukubaluleka kokugcinwa kwamanzi kwidaka
Udaka olunokugcinwa kakubi kwamanzi kulula ukopha kwaye lwahlule ngexesha lokuthuthwa nokugcinwa, oko kukuthi, amanzi adada ngaphezulu, isanti kunye nesinki yesamente ngaphantsi, kwaye kufuneka ivuselelwe kwakhona phambi kokusetyenziswa.Udaka olunokugcinwa kwamanzi okungahambi kakuhle, kwinkqubo yokugcoba, ngokude nje ukuba udaka olulungelelanisiweyo ludibene nebhloko okanye isiseko, i-mortar edibeneyo edibeneyo iya kuxutywa ngamanzi, kwaye ngexesha elifanayo, indawo yangaphandle udaka luya kuwenza abe ngumphunga amanzi emoyeni, nto leyo ekhokelela ekuphulukaneni namanzi odaka.Amanzi angonelanga aya kuchaphazela ngakumbi ukuhanjiswa kwesamente kwaye kuchaphazele uphuhliso oluqhelekileyo lwamandla odaka, okukhokelela kumandla aphantsi, ngakumbi amandla ojongano phakathi kodaka oluqinileyo kunye nomgangatho wesiseko, okukhokelela ekuqhekekeni nasekuweni kodaka.
2. Indlela yemveli yokuphucula ukugcinwa kwamanzi kwidaka
Isisombululo sendabuko kukunkcenkceshela isiseko, kodwa akunakwenzeka ukuqinisekisa ukuba isiseko sinomanzi ngokulinganayo.Injongo efanelekileyo ye-hydration ye-cement mortar kwisiseko kukuba: imveliso ye-cement hydration ingena kwisiseko kunye nenkqubo yesiseko esithatha amanzi, senze "uqhagamshelwano oluphambili" olusebenzayo kunye nesiseko, ukuze kufezekiswe amandla afunekayo ebhondi.Ukunkcenkceshela ngokuthe ngqo kumphezulu wesiseko kuya kubangela ukusasazwa okunzulu ekufunxeni kwamanzi kwisiseko ngenxa yokungafani kobushushu, ixesha lokunkcenkceshela, kunye nokufana kwamanzi.Isiseko sinokufunxa okuncinci kwamanzi kwaye siya kuqhubeka nokufunxa amanzi kumdaka.Ngaphambi kokuba i-cement hydration iqhube, amanzi axutywe, achaphazela ukungena kwe-cement hydration kunye nemveliso ye-hydration kwi-matrix;isiseko sinokufunxa okukhulu kwamanzi, kwaye amanzi kumdaka ageleza ukuya kwisiseko.Isantya semfuduko esiphakathi siyacotha, kwaye kwakhiwe umaleko otyebileyo wamanzi phakathi kodaka kunye ne-matrix, ekwachaphazela amandla ebhondi.Ngoko ke, ukusebenzisa indlela yokunkcenkceshela isiseko esiqhelekileyo akuyi kuphumelela kuphela ukusombulula ngokufanelekileyo ingxaki yokutshatyalaliswa kwamanzi aphezulu kwisiseko sodonga, kodwa kuya kuchaphazela amandla okubambisana phakathi kodaka kunye nesiseko, okubangelwa ukugoba kunye nokuqhekeka.
3. Ugcino lwamanzi olusebenzayo
(1) Umsebenzi ogqwesileyo wogcino lwamanzi wenza ukuba udaka luvuleke ixesha elide, kwaye luneenzuzo kulwakhiwo lwendawo enkulu, ubomi benkonzo ende emgqomeni, kunye nokuxuba ibhetshi kunye nokusetyenziswa kweebhetshi.
(2) Ukusebenza kakuhle kokugcinwa kwamanzi kwenza i-samente kwi-mortar i-hydrated ngokupheleleyo, iphucula ngokufanelekileyo ukusebenza kokubambisana kodaka.
(3) Udaka lunomsebenzi ogqwesileyo wokugcinwa kwamanzi, okwenza ukuba udaka lungabi lula ukuhlukana kunye nokuphuma kwegazi, okuphucula ukusebenza kunye nokwakhiwa kodaka.
Ixesha lokuposa: Mar-20-2023