Esinye sezongezo ezisetyenziswa ngokuqhelekileyo kudaka lomxube owomileyo yi-hydroxyethyl cellulose (HEC). I-HEC i-ether ye-cellulose engekho i-ionic ene-thickening, ukugcinwa kwamanzi, ukuzinzisa, kunye neempawu zokumiswa. Isetyenziswe ngokubanzi kwizinto zokwakha, ngakumbi kwi-dry-mix mortar.
1. Indima ye-HEC kwi-dry-mix mortar
Kudaka lomxube owomileyo, i-HEC ikakhulu idlala indima yokugcina amanzi, ukujiya kunye nokuphucula ukusebenza kolwakhiwo:
Ukugcinwa kwamanzi: I-HEC inokugcinwa kwamanzi okugqwesileyo kwaye inokunciphisa ilahleko yamanzi. Oku kubaluleke kakhulu kwi-dry-mix mortar kuba kwandisa ixesha elivulekileyo lodaka, okuvumela abasebenzi ukuba balungelelanise udaka ixesha elide kunye nokuphucula ukusebenza kakuhle kolwakhiwo. Ukongezelela, ukugcinwa kwamanzi kunokunciphisa umngcipheko wokuqhekeka kunye nokuqinisekisa ukuba inkqubo yokuqina kodaka ifana kakhulu kwaye izinzile.
Ukutyeba: Umphumo wokuqina we-HEC unika udaka i-viscosity enhle, evumela udaka ukuba unamathele kangcono kumphezulu we-substrate ngexesha lokwakhiwa, kungekhona lula ukutyibilika, kwaye uphucula ukufana kwesicelo. Olu phawu lubaluleke kakhulu kulwakhiwo oluthe nkqo kwaye lunokuphucula kakhulu umgangatho wokwakhiwa kodaka.
Ukuphucula ukusebenza kolwakhiwo: I-HEC inokwenza i-dry-mixed mortar ibe lula kwaye kulula ukuyisebenzisa, ngaloo ndlela inciphisa ubunzima bokusebenza. Yenza udaka lube nokusasazeka okugqwesileyo kunye nokunamathela kwi-substrate, okwenza ukwakhiwa kugcinwe umsebenzi ngakumbi kunye nokuphucula ukusebenza kakuhle. Ukongeza, inokunyusa amandla okuchasa ukuthoba, ngakumbi kulwakhiwo olungqindilili.
2. Iikhrayitheriya zokukhetha ze-HEC
Xa ukhetha i-HEC, izinto ezinjengobunzima be-molecular, i-degree of substitution kunye ne-solubility kufuneka ziqwalaselwe, eziza kuchaphazela ngokuthe ngqo ukusebenza kodaka:
Ubunzima bemolekyuli: Ubungakanani bobunzima bemolekyuli buchaphazela amandla okuqina kunye nokugcina amanzi kwi-HEC. Ngokuqhelekileyo, i-HEC enobunzima obukhulu be-molecular inefuthe elingcono lokuqina, kodwa isantya sokuchithwa kancinci; I-HEC enobunzima obuncinci bemolekyuli inesantya esikhawulezayo sokuchithwa kunye nesiphumo esibi kakhulu sokuqina. Ngoko ke, kuyimfuneko ukukhetha ubunzima beemolekyuli ezifanelekileyo ngokweemfuno zokwakha.
Iqondo lokutshintshwa: Iqondo lokutshintshwa kwe-HEC limisela ukunyibilika kwayo kunye nokuzinza kwe-viscosity. Iqondo eliphezulu lokutshintshwa, ngcono i-solubility ye-HEC, kodwa i-viscosity iya kuncipha; xa iqondo lokutshintshwa liphantsi, i-viscosity iphezulu, kodwa i-solubility ingaba yimbi. Ngokubanzi, i-HEC eneqondo eliphakathi lokutshintshwa ifaneleke ngakumbi ukusetyenziswa kudaka oluxubeneyo elomileyo.
Ukunyibilika: Izinga lokuchithwa kwe-HEC lichaphazela ixesha lokulungiselela ukwakhiwa. Ngodaka oluxubileyo oluxubileyo, lulungele ngakumbi ukukhetha i-HEC elula ukusabalalisa kunye nokuchithwa ngokukhawuleza ukuphucula ukuguquguquka kokwakhiwa.
3. Izilumkiso xa usebenzisa i-HEC
Xa usebenzisa i-HEC, kuya kufuneka ubeke ingqalelo kwisixa sayo sokongeza kunye neemeko zokusetyenziswa ukuze uqinisekise isiphumo esihle:
Ulawulo lwemali eyongezelelweyo: Imali eyongezelelweyo ye-HEC idla ngokulawulwa phakathi kwe-0.1% -0.5% yobunzima obupheleleyo bomdaka. Ukongezwa okugqithisileyo kuya kubangela ukuba udaka lube lukhulu kwaye luchaphazele umbane wokwakha; ukongezwa okungonelanga kuya kunciphisa umphumo wokugcina amanzi. Ke ngoko, uvavanyo kufuneka lwenziwe ngokweemfuno zokwenyani ukumisela isixa esongezelelekileyo.
Ukuhambelana nezinye izongezo: Kwi-dry-mixed mortar, i-HEC isoloko isetyenziselwa ukudibanisa nezinye izongezo ezifana ne-redispersible latex powder, i-cellulose ether, njl. isiphumo.
Iimeko zokugcina: I-HEC i-hygroscopic, kucetyiswa ukuba uyigcine kwindawo eyomileyo kwaye ugweme ukukhanya kwelanga. Kufuneka isetyenziswe ngokukhawuleza emva kokuvula ukuthintela ukuthotywa kokusebenza.
4. Isiphumo sokusetyenziswa kwe-HEC
Kwisicelo esisebenzayo, i-HEC inokuphucula kakhulu ukusebenza kokwakhiwa kodaka oluxubekileyo kunye nokuphucula umgangatho wonke wodaka. Isiphumo sokuqina kunye nokugcinwa kwamanzi kwe-HEC kwenza ukuba udaka oluxubeneyo oluxubeneyo lube nokubambelela kakuhle kunye nokuzinza, okungaphuculi nje umgangatho wokwakha, kodwa nokwandisa ixesha elivulekileyo lomdaka, okuvumela abasebenzi ukuba basebenze ngokuzola. Ukongezelela, i-HEC inokunciphisa ukwenzeka kokuqhekeka kumphezulu wodaka, okwenza udaka oluqinileyo lube luhlala kwaye luhle.
5. Ukhuseleko lokusingqongileyo kunye noqoqosho lwe-HEC
I-HEC yinto ephuma kwi-cellulose ehambelana nokusingqongileyo ekwazi ukubola kwaye ihambelana nokusingqongileyo. Ukongeza, i-HEC inexabiso eliphakathi kunye neendleko ezifanelekileyo, okwenza ukuba ilungele ukukhuthazwa okubanzi kunye nokusetyenziswa kwiindidi ezahlukeneyo zeeprojekthi zokwakha. Ukusetyenziswa kwe-HEC kunokunciphisa umlinganiselo wamanzi-samente yodaka, ngaloo ndlela ukunciphisa ukusetyenziswa kwamanzi, okuhambelana nendlela yangoku yokukhuselwa kokusingqongileyo kwishishini lokwakha.
Ukusetyenziswa kwe-HEC kudaka oluxubeneyo olomileyo kunokuphucula kakhulu ukusebenza kodaka kwaye iyongezwa eyimfuneko ekwakheni. Ukugcinwa kwawo kakuhle kwamanzi, ukutyeba kunye nokuguquguquka kolwakhiwo kuphucula ukusebenza kakuhle kolwakhiwo kwaye kwenza umgangatho uzinze ngakumbi. Ukukhetha
i-HEC efanelekileyo kunye nokuyisebenzisa ngokufanelekileyo ayikwazi nje ukuphucula umgangatho wokwakha, kodwa ihlangabezane nokukhuselwa kwendalo kunye neemfuno zezoqoqosho.
Ixesha lokuposa: Nov-01-2024