I-HPMC (Hydroxypropyl Methyl Selelose) yisongezelelo esisetyenziswayo esidlangalaleni. Yinto engu-Ionic se-ionsulose ether efunyenwe ngokuphatha i-sellulose ne-methyl chloride kwaye i-propleynene oxide. I-HPMC isetyenziswa ngokubanzi kumzi-mveliso wokwakha ngenxa yepropathi egqwesileyo yamanzi, njengendawo enkulu, kunye ne-chickener kunye nokuphucula ukusebenza kunye namandla okhula. Kweli nqaku, siza kuxubusha ngomatshini wesenzo seSeluplose
Ukugcinwa kwamanzi
I-HPMC ineepropathi ezigqwesileyo zamanzi kwaye inokugcina umxholo wamanzi wokufakelwa kwesamente ngexesha lokuseta. Umsebenzi wokugcinwa kwamanzi we-HPMC unceda inkqubo ye-qumed kwaye ulibazise inkqubo yokomisa, ngaloo nto iphucula amandla okuqina. Inceda ukunciphisa i-shrinkage, thintela ukuqhekeka kwaye kuphuculwe. Xa i-HPMC yongezwa kwi-cemetion yesamente, iyenza umaleko okhuselayo ojikeleze iimveliso ze-hydimes, ecothisa ireyithi yokuphuma kwamanzi elulalweni.
Ukuphucula ukusebenza
I-HPMC iphucula ukusebenza kwesamente ekufakeni i-tickener kunye ne-binder. Xa idityaniswe namanzi, i-HPMC yenza into efana nejeli enyukayo i-viscofity yomxube. Le nto ifana nejeli efana negesi iyanceda ukugcina udaka lwesamente endaweni kwaye ungaphelelwa ngamalungu nangeenkozo. Ukuphuculwa kokuphuculwa kodaka lokwenza amandla kuyanceda ukunciphisa iindleko zeprojekthi njengoko kuphelisa imfuneko yohlengahlengiso rhoqo. Kwaye, inokusetyenziswa ngokukhawuleza nangokulula, ukwanda kwesantya sokuqala sokwakha.
Yongeza amandla
Esinye isibonelelo esibalulekileyo sokusebenzisa i-HPMC kwi-Creatication ukuba inyusa amandla odaka. I-HPMC iyanceda ukusasaza isamente ngokulinganayo, okukhokelela kwibhondi enkulu, ethembekileyo ngakumbi kwibala. Iipropathi eziphuculweyo zamanzi ze-HPMMC kwi-sure yesamente enodaka, ngaloo ndlela zikhulisa amandla ayo. Amanzi e-Commars kunika i-hydication kwisamente kunye nobukho be-HPMC kunceda ukugcina amanzi, ngaloo ndlela ukuphuculwa kwenkqubo yonyango.
Ukunciphisa i-shrinkage
I-Shrinkage yingxaki eqhelekileyo kwisamente ngenxa yokuphuma kwamanzi. I-Shrinkage inokukhokelela ekuqhekekeni, enokuchaphazela kakhulu amandla kunye nokuqina kwesakhiwo. Nangona kunjalo, i-HPMC inceda ukunciphisa ukungcola kwesamente ngokuzigcina umswakama kunye nokuthoba ukuthoba ukuthoba. Oku kunciphisa umngcipheko wokuqhekeka, okukhokelela kwisakhiwo esomeleleyo kakhulu.
ukuphucula ubumbethe
Okokugqibela, i-HPMC inceda ekuphuculeni amandla obolekayo bodaka lokuthamba. I-HPMC isebenza njenge-binder enceda ukubamba udaka kunye. Ikwanceda ukwenza iqhina elinamandla phakathi kodaka kunye nodaka. Ukuqina kobubi bodaka lwesamente kuphuculwe, kwaye isakhiwo sinamandla kwaye somelele ngakumbi, esinokumelana namandla angaphandle.
ukuququmbela
Ukuqukumbela, i-HPMC yisongezelelo esixabisekileyo esimemeni ngenxa yokugcinwa kwawo amanzi, ukusebenza, amandla, ukunciphisa i-shrinkage kunye nokuphuculwa okuziphuculweyo kunye nokuphuculwa komdlalo. The mechanism of action of cellulose ethers in cement mortar is based on improved water retention, aids in the curing process, provides uniform dispersion of cement, improves workability, reduces shrinkage and improves bonding. Ukusetyenziswa ngokufezekileyo kwe-HPMC kwisamente yokufa kwexesha kunokubangela ukuba iqhekeke elomeleleyo, elomeleleyo kwaye liqiniseke ngakumbi, elibaluleke kakhulu kulo naliphi na iprojekthi yokwakha. Ngokusetyenziswa ngokufanelekileyo kwe-HPMC, iiprojekthi zokwakha zinokugqitywa ngokukhawuleza, ngokufanelekileyo kwaye zinomgangatho ophezulu.
IXESHA LOKUQALA: UJUL-27-2023