I-Cellulose ether inefuthe elithile lokulibazisa kwi-mortar. Njengoko umthamo we-cellulose ether unyuka, ixesha lokubeka i-mortar liyanda. Isiphumo sokulibazisa se-cellulose ether kwi-cement paste sixhomekeke kakhulu kwinqanaba lokutshintshwa kweqela le-alkyl, ngelixa lingenanto yakwenza nobunzima bayo beemolekyuli.
Okukhona inqanaba lokutshintshwa kwe-alkyl lincinci, kokukhona umxholo we-hydroxyl umkhulu, kwaye kokukhona isiphumo sokulibazisa sibonakala ngakumbi. Kwaye okukhona idosi ye-cellulose ether iphezulu, kokukhona isiphumo sokulibazisa se-complex film layer sibonakala ngakumbi ekufakweni kwesamente emanzini kwangoko, ngoko ke isiphumo sokulibazisa siyabonakala ngakumbi.
Amandla yenye yezona zikhokelo zibalulekileyo zovavanyo lwempembelelo yokuphilisa kwezinto ezisekelwe kwisamente kumxube. Xa umthamo we-cellulose ether usanda, amandla okucinezela kunye namandla okugoba komdaka aya kuncipha. Amandla okubophelela okuxineneyo komdaka wesamente oxutywe ne-cellulose ether ayaphucuka; Amandla okugoba kunye nokugoba komdaka wesamente ayancitshiswa, kwaye okukhona umthamo umkhulu, kokukhona amandla ehla;
Emva kokuxuba i-hydroxypropyl methyl cellulose ether, ngokonyuka komthamo, amandla e-flexural e-samente mortar ayanda kuqala aze anciphe, kwaye amandla oxinzelelo ancipha kancinci kancinci. Umthamo ofanelekileyo kufuneka ulawulwe kwi-0.1%.
I-Cellulose ether inefuthe elikhulu ekusebenzeni kwe-bonding ye-mortar. I-Cellulose ether yenza ifilimu ye-polymer enefuthe lokutywina phakathi kwamasuntswana e-samente hydration kwinkqubo yesigaba solwelo, ekhuthaza amanzi amaninzi kwifilimu ye-polymer ngaphandle kwamasuntswana e-samente, nto leyo enceda ekufumaneni amanzi ngokupheleleyo kwi-samente, ngaloo ndlela iphucula amandla e-bonding ye-paste emva kokuqina.
Kwangaxeshanye, isixa esifanelekileyo se-cellulose ether siphucula i-plasticity kunye nokuguquguquka kwe-mortar, sinciphisa ukuqina kwendawo yokutshintsha phakathi kwe-mortar kunye ne-substrate interface, kwaye sinciphisa amandla okutyibilika phakathi kwe-interfaces. Ukuya kwinqanaba elithile, isiphumo sokubopha phakathi kwe-mortar kunye ne-substrate siyaphucuka.
Ukongeza, ngenxa yokubakho kwe-cellulose ether kwi-cement paste, kwakhiwa indawo ekhethekileyo yokutshintsha ujongano kunye nomaleko wojongano phakathi kwamasuntswana e-mortar kunye nemveliso yokufunxa amanzi. Le maleko yojongano yenza indawo yokutshintsha ujongano ibe bhetyebhetye ngakumbi kwaye ingaqini. Ngoko ke, yenza ukuba ujongano lube namandla aqinileyo e-bond.
Ixesha lokuthumela: Juni-02-2023