I-mortar ezenzela umlinganiselo wayo inokuxhomekeka kubunzima bayo ukuze yenze isiseko esithe tyaba, esigudileyo nesiqinileyo kwisiseko sokubeka okanye ukubopha ezinye izinto, kwaye kwangaxeshanye inokwenza ulwakhiwo olukhulu nolusebenzayo. Ke ngoko, ukutyibilika okuphezulu yinto ebaluleke kakhulu kwi-mortar ezenzela umlinganiselo. Ukongeza, kufuneka ibe nokugcinwa kwamanzi kunye namandla okubopha, ingabi nanto yakwenza nokwahlulwa kwamanzi, kwaye ibe neempawu zokuthintela ubushushu kunye nokunyuka kobushushu obuphantsi.
Ngokubanzi, i-self-leveling mortar ifuna ukutyibilika okuhle, kodwa ukutyibilika kwe-cement paste yokwenyani kudla ngokuba yi-10-300px kuphela; i-cellulose ether sisongezelelo esiphambili se-ready-mixed mortar, nangona isixa sokongeza siphantsi kakhulu, sinokuphucula kakhulu ukusebenza kwe-Mortar, sinokuphucula ukungqinelana, ukusebenza, ukusebenza kwe-bonding kunye nokusebenza kokugcina amanzi kwe-mortar. Idlala indima ebaluleke kakhulu kwicandelo le-ready-mixed mortar.
1. Ukunyibilika: I-Cellulose ether inefuthe elibalulekileyo ekugcinweni kwamanzi, ukuhambelana kunye nokusebenza kolwakhiwo lwe-self-leveling mortar. Ingakumbi njenge-self-leveling mortar, ukunyibilika yenye yezona mpawu ziphambili zokuvavanya ukusebenza kwe-self-leveling. Phantsi kwengcamango yokuqinisekisa ukwakheka okuqhelekileyo kwe-mortar, ukunyibilika kwe-mortar kunokulungiswa ngokutshintsha ubungakanani be-cellulose ether. Nangona kunjalo, ukuba ubungakanani buphezulu kakhulu, ukunyibilika kwe-mortar kuya kuncitshiswa, ngoko ke ubungakanani be-cellulose ether HPMC kufuneka bulawulwe ngaphakathi koluhlu olufanelekileyo.
2. Ukugcinwa kwamanzi: Ukugcinwa kwamanzi kwi-mortar luphawu olubalulekileyo lokulinganisa uzinzo lwezixhobo zangaphakathi ze-mortar esandula ukuxutywa yesamente. Ukuze kuphunyezwe ngokupheleleyo ukusabela kokufuma kwezinto zejeli, ubungakanani obufanelekileyo be-cellulose ether bunokugcina ukufuma kwi-mortar ixesha elide. Ngokubanzi, izinga lokugcina amanzi kwi-slurry liyanda ngokwanda komxholo we-cellulose ether. Isiphumo sokugcina amanzi se-cellulose ether HPMC sinokuthintela i-substrate ekufunxeni amanzi amaninzi ngokukhawuleza, kwaye sithintele ukufuma kwamanzi, ukuze kuqinisekiswe ukuba indawo ye-slurry inika amanzi aneleyo okufumisa isamente. Ukongeza, i-viscosity ye-cellulose ether ikwanefuthe elikhulu ekugcinweni kwamanzi kwi-mortar. Okukhona i-viscosity iphezulu, kokukhona i-viscosity ingcono, kokukhona i-water retention ingcono. Ngokubanzi, i-cellulose ether HPMC ene-viscosity ye-400mpa.s isetyenziswa kakhulu kwi-self-leveling mortar, enokuphucula ukusebenza kwe-leveling kwe-mortar kwaye yonyuse ubuncinci be-mortar.
3. Ixesha lokuseta: I-Cellulose ether inefuthe elithile lokulibazisa kwi-mortar. Njengoko umxholo we-cellulose ether unyuka, ixesha lokuseta kwe-mortar liyanda. Isiphumo sokulibazisa se-cellulose ether HPMC kwi-cement paste sixhomekeke kakhulu kwinqanaba lokutshintsha iqela le-alkyl, kwaye asinabudlelwane buninzi nobunzima bayo beemolekyuli. Okukhona umgangatho wokutshintshwa kwe-alkyl uncinci, kokukhona umxholo we-hydroxyl umkhulu, kwaye kokukhona umphumo wokulibazisa ubonakala ngakumbi. Kwaye okukhona umxholo we-cellulose ether uphezulu, kokukhona isiphumo sokulibazisa se-complex film layer sibonakala ngakumbi ekufakweni kwe-samente emanzini kwangoko, ngoko ke isiphumo sokulibazisa siyabonakala ngakumbi.
4. Amandla okugoba kunye namandla okucinezela: Ngokwesiqhelo, amandla yenye yezona zibonakaliso zibalulekileyo zovavanyo lwesiphumo sokuphiliswa kwezinto ezisekwe kwisamente kumxube. Amandla okuxinanisa kunye namandla okugoba kwesamente aya kuncipha ngokwanda komxholo we-cellulose ether HPMC.
5. Amandla okubopha: i-cellulose ether HPMC inefuthe elikhulu ekusebenzeni kokubopha kwe-mortar. I-cellulose ether yenza ifilimu ye-polymer enesiphumo sokutywina phakathi kwamasuntswana e-samente hydration kwinkqubo yesigaba solwelo, ekhuthaza amanzi amaninzi kwifilimu ye-polymer ngaphandle kwamasuntswana e-samente, okunceda ukufuma okupheleleyo kwesamente, ngaloo ndlela kuphucula amandla e-bond ye-paste emva kokuqina. Kwangaxeshanye, isixa esifanelekileyo se-cellulose ether siphucula i-plasticity kunye nokuguquguquka kwe-mortar, kunciphisa ukuqina kwendawo yokutshintsha phakathi kwe-mortar kunye ne-substrate interface, kwaye kunciphisa amandla okutyibilika phakathi kwamasuntswana. Ukuya kwinqanaba elithile, isiphumo sokubopha phakathi kwe-mortar kunye ne-substrate siyaphuculwa. Ukongeza, ngenxa yokubakho kwe-cellulose ether kwi-samente paste, indawo ekhethekileyo yokutshintsha kwe-interface kunye nomaleko we-interface zenziwa phakathi kwamasuntswana e-mortar kunye nemveliso ye-hydration. Olu maleko we-interface lwenza indawo yokutshintsha ye-interface ibe bhetyebhetye ngakumbi kwaye ingaqini kangako, ukuze i-mortar ibe namandla e-bond aqinileyo.
Ixesha leposi: Februwari-27-2023