I-HPMC (i-Hydroxypropyl Methyl Cellulose) sisidibaniso esisetyenziswa ngokuqhelekileyo kudaka lwesamente.I-ether ye-cellulose engekho i-ionic efunyenwe ngokuphatha i-cellulose nge-methyl chloride kunye ne-propylene oxide.I-HPMC isetyenziswa kakhulu kushishino lokwakha ngenxa yeepropati zayo ezigqwesileyo zokugcina amanzi, njenge-thickener kunye ne-binder, kunye nokuphucula ukusebenza kunye namandla odaka lwesamente.Kule nqaku, siza kuxubusha indlela yokwenza i-cellulose ethers kwi-samente mortar.
ukugcinwa kwamanzi
I-HPMC ineempawu ezigqwesileyo zokugcina amanzi kwaye inokugcina umthamo wamanzi wodaka lwesamente ngexesha lenkqubo yokumisela.Ukusebenza kokugcinwa kwamanzi kwe-HPMC kunceda inkqubo ye-hydration yesamente kunye nokulibazisa inkqubo yokomisa, ngaloo ndlela iphucula amandla omdaka wesamente.Inceda ukunciphisa i-shrinkage, ukukhusela ukukrazula kunye nokuphucula ukudibanisa.Xa i-HPMC yongezwa kudaka lwesamente, yenza umaleko okhuselayo ojikeleze imveliso ye-hydration, ithoba isantya sokuphuphuma kwamanzi kudaka.
Ukuphucula ukusebenza
I-HPMC iphucula ukusebenza kodaka lwesamente ngokusebenza njengento etyebisayo kunye nesibophelelo.Xa ixutywe namanzi, i-HPMC yenza into efana nejeli eyandisa i-viscosity yomxube.Le nto efana nejeli inceda ukugcina udaka lwesamente lusendaweni kwaye alupheli amalungu kunye neentanda.Ukuphuculwa kokusebenza kodaka lwesamente kwakhona kunceda ukunciphisa iindleko zizonke zeprojekthi njengoko kuphelisa imfuno yohlengahlengiso rhoqo.Ngaphezu koko, inokusetyenziswa ngokukhawuleza kwaye kulula, ukwandisa isantya sokwakha.
ukwandisa amandla
Olunye uncedo olubalulekileyo lokusebenzisa i-HPMC kudaka lwesamente kukuba lunyusa amandla odaka.I-HPMC inceda ukusasaza isamente ngokulinganayo, okukhokelela kwibhondi eyomeleleyo, ethembekileyo kwi-substrate.Iipropati eziphuculweyo zokugcina amanzi ze-HPMC zinceda ekunyangelweni kodaka lwesamente, ngokwenjenjalo zandisa amandla awo.Amanzi kumdaka abonelela nge-hydration kwisamente kwaye ubukho be-HPMC bunceda ukugcina amanzi, ngaloo ndlela kuphuculwe inkqubo yokunyanga.
ukunciphisa ukucutheka
Ukushwabana yingxaki eqhelekileyo kudaka lwesamente ngenxa yokumka kwamanzi abe ngumphunga.I-Shrinkage ingakhokelela ekuqhekekeni, okunokuchaphazela kakhulu amandla kunye nokuqina kwesakhiwo.Nangona kunjalo, i-HPMC inceda ekunciphiseni ukushwabana kodaka lwesamente ngokugcina ukufuma kunye nokucotha ukuvela komphunga.Oku kunciphisa umngcipheko wokuqhekeka, okukhokelela kwisakhiwo esinamandla, esomelele ngakumbi.
ukuphucula ukunamathela
Okokugqibela, i-HPMC inceda ukuphucula amandla ebhondi yodaka lwesamente.I-HPMC isebenza njengesibophelelo esinceda ukubamba udaka kunye.Kwakhona kunceda ukwenza ikhonkco eliqinileyo phakathi kodaka kunye ne-substrate.Ubuchule bokubambisana bomdaka we-samente buphuculwe, kwaye isakhiwo sinamandla kwaye sihlala sihlala, esinokumelana namandla angaphandle.
ukuququmbela
Ukuqukumbela, i-HPMC yongezelelo oluxabisekileyo kwi-samente yodaka ngenxa yokugcinwa kwamanzi, ukusebenza, amandla, ukunciphisa ukuncipha kunye nokuphucula ukuhambelana.Indlela yokusebenza ye-cellulose ethers kwi-cement mortar isekelwe ekugcinweni kwamanzi okuphuculweyo, i-aids kwinkqubo yokunyanga, ibonelela ngokusasazwa okufanayo kwesamente, iphucula ukusebenza, iyanciphisa i-shrinkage kunye nokuphucula ukuxhamla.Ukusetyenziswa okukuko kwe-HPMC kwiidaka zesamente kunokukhokelela kulwakhiwo olunamandla, oluhlala ixesha elide kunye noluthembekileyo, olubaluleke kakhulu kuyo nayiphi na iprojekthi yokwakha.Ngokusetyenziswa ngokufanelekileyo kwe-HPMC, iiprojekthi zokwakha zinokugqitywa ngokukhawuleza, ngokufanelekileyo nangomgangatho ophezulu.
Ixesha lokuposa: Jul-27-2023