I-self-leveling mortar inokuxhomekeka kubunzima bayo ukwenza isiseko esisicaba, esithambileyo kunye nesiqinileyo kwi-substrate yokubeka okanye ukudibanisa ezinye izinto, kwaye kwangaxeshanye inokuqhuba ukwakhiwa okukhulu kunye nokusebenza kakuhle. Ke ngoko, ulwelo oluphezulu ngumba obaluleke kakhulu wodaka lokuzilinganisa. Ukongezelela, kufuneka kube nokugcinwa kwamanzi athile kunye namandla okudibanisa, akukho nto yokwahlulwa kwamanzi, kwaye ibe neempawu zokufudumeza ukushisa kunye nokunyuka kweqondo lokushisa eliphantsi.
Ngokubanzi, udaka oluzilinganisa ngokwalo lufuna ulwelo olulungileyo, kodwa ukunyibilika kwencama yesamente yokwenyani kudla ngokuba yi-10-300px kuphela; I-cellulose ether iyona nto yokudibanisa i-mortar edibeneyo edibeneyo, nangona isixa sokongeza siphantsi kakhulu, sinokuphucula kakhulu ukusebenza kwe-Mortar, inokuphucula ukuhambelana, ukusebenza okusebenzayo, ukusebenza kwebhondi kunye nokugcinwa kwamanzi omdaka. Idlala indima ebaluleke kakhulu kwintsimi yodaka olulungeleyo.
1. Ulwelo: I-ether ye-Cellulose inempembelelo ebalulekileyo ekugcineni amanzi, ukuhambelana kunye nokusebenza kokwakhiwa kwe-self-leveling mortar. Ngokukodwa njengodaka lokuzilinganisa, ukumanzi sesinye sezibonakaliso eziphambili zokuvavanya ukusebenza kokuzilinganisa. Ngaphantsi kwesiseko sokuqinisekisa ukubunjwa okuqhelekileyo kodaka, ukunyanzeliswa kodaka kunokulungiswa ngokutshintsha inani le-cellulose ether. Nangona kunjalo, ukuba isixa siphezulu kakhulu, i-fluidity yodaka iya kuncitshiswa, ngoko ke isixa se-cellulose ether HPMC kufuneka ilawulwe ngaphakathi koluhlu olufanelekileyo.
2. Ukugcinwa kwamanzi: Ukugcinwa kwamanzi odaka luphawu olubalulekileyo lokulinganisa uzinzo lwamalungu angaphakathi odaka oluxutyiweyo lwesamente. Ukuze ufezekise ngokupheleleyo ukuphendulwa kwe-hydration yezinto ze-gel, isixa esifanelekileyo se-cellulose ether sinokugcina umswakama kwi-mortar ixesha elide. Ngokuqhelekileyo, izinga lokugcinwa kwamanzi kwi-slurry liyenyuka ngokunyuka kwe-cellulose ether content. Ukugcinwa kwamanzi kwisiphumo se-cellulose ether HPMC kunokuthintela i-substrate ekufunxeni amanzi amaninzi ngokukhawuleza, kwaye ithintele ukuphuphuma kwamanzi, ukuze kuqinisekiswe ukuba indawo yodaka ibonelela ngamanzi aneleyo kwi-samente hydration. Ukongezelela, i-viscosity ye-cellulose ether nayo inempembelelo enkulu ekugcinweni kwamanzi omdaka. Ukuphakama kwe-viscosity, ngcono ukugcinwa kwamanzi. Ngokuqhelekileyo, i-cellulose ether HPMC ene-viscosity ye-400mpa.s isetyenziswa kakhulu kwi-self-leveling mortar, enokuthi iphucule ukusebenza komgangatho wodaka kunye nokwandisa ukuqina kodaka.
3. Ukuseta ixesha: I-ether ye-Cellulose inempembelelo ethile yokunciphisa udaka. Ngokunyuka komxholo we-cellulose ether, ixesha lokumisela lomdaka lithatha ixesha elide. Isiphumo esibambekayo se-cellulose ether HPMC kwintlama yesamente ixhomekeke ikakhulu kwiqondo lokuthatha indawo yeqela le-alkyl, kwaye inobudlelwane obuncinci kunye nobunzima bayo bemolekyuli. Incinci idigri ye-alkyl substitution, isikhulu isiqulatho se-hydroxyl, kunye nokucaca ngakumbi isiphumo sokubuyiswa. Kwaye okukhona uphezulu umxholo we-cellulose ether, kokukhona kubonakala ngakumbi isiphumo sokulibaziseka somaleko wefilimu entsonkothileyo kwi-hydration yokuqala yesamente, ngoko ke isiphumo sokubambezela sikwabonakala ngakumbi.
4. Amandla e-Flexural kunye namandla oxinzelelo: Ngokuqhelekileyo, amandla yenye yezibonakaliso ezibalulekileyo zokuvavanya umphumo wokuphilisa we-cement-based cementitious materials kumxube. Amandla oxinzelelo kunye namandla okuguquguquka kodaka luya kuncipha ngokunyuka kwe-cellulose ether HPMC umxholo.
5. Amandla okudibanisa: i-cellulose ether I-HPMC inempembelelo enkulu ekusebenzeni kwe-bonding yodaka. I-cellulose ether yenza ifilimu ye-polymer enefuthe lokutywinwa phakathi kweengqungquthela ze-sement hydration kwinkqubo yesigaba se-liquid, ekhuthaza amanzi amaninzi kwifilimu ye-polymer ngaphandle kweengqungquthela ze-cement, ezihambelana nokuhanjiswa okupheleleyo kwe-cement, ngaloo ndlela kuphuculwe ibhondi. amandla entlama emva kokuqina. Kwangaxeshanye, isixa esifanelekileyo se-ether ye-cellulose siphucula iplastiki kunye nokuguquguquka kodaka, kunciphisa ukuqina kwendawo yokutshintsha phakathi kodaka kunye ne-interface ye-substrate, kunye nokunciphisa ukukwazi ukutyibilika phakathi kwe-interfaces. Ukuya kumlinganiselo othile, impembelelo yokudibanisa phakathi kodaka kunye ne-substrate iphuculwe. Ukongezelela, ngenxa yobukho be-cellulose ether kwi-sement paste, indawo ekhethekileyo yokutshintshwa kwendawo kunye ne-interface layer yenziwa phakathi kweengqungquthela zodaka kunye nemveliso ye-hydration. Le umaleko ujongano kwenza ujongano transition zone ngakumbi bhetyebhetye kwaye ngaphantsi engqongqo, ngoko ke, ukuze udaka lunamandla bond olomeleleyo.
Ixesha lokuposa: Feb-27-2023