I-HPMC ikakhulu idlala indima yokugcina amanzi kunye nokujiya kwi-samente yodaka kunye ne-gypsum-based slurry, enokuthi iphucule ngokufanelekileyo ubumbano kunye nokuxhatshazwa kwe-sag ye-slurry.
Izinto ezifana nobushushu bomoya, ubushushu kunye noxinzelelo lomoya ziyakuchaphazela izinga lokumka kwamanzi kudaka lwesamente kunye neemveliso ezisekwe kwigypsum. Ngoko ke, ngamaxesha ahlukeneyo, ukongeza inani elifanayo le-HPMC, umphumo wokugcinwa kwamanzi weemveliso unomahluko othile. Ukugcinwa kwamanzi kwe-methyl cellulose ether kwiqondo lokushisa eliphezulu luphawu olubalulekileyo lokuhlukanisa umgangatho we-methyl cellulose ether. I-HPMC egqwesileyo inokusombulula ngempumelelo ingxaki yokugcinwa kwamanzi phantsi kobushushu obuphezulu. Ngamaxesha obushushu obuphezulu, ngakumbi kwiindawo ezishushu nezomileyo kunye nolwakhiwo olubhityileyo kwicala elinelanga, i-HPMC ekumgangatho ophezulu iyafuneka ukuze kuphuculwe ukugcinwa kwamanzi kwi-slurry. Umgangatho ophezulu we-HPMC, kunye nokufana okuhle kakhulu, amaqela ayo e-methoxy kunye ne-hydroxypropoxy asasazwa ngokulinganayo ecaleni kwetsheyini ye-cellulose ye-molekyuli, enokuphucula amandla e-athomu ze-oksijini kwi-hydroxyl kunye neebhondi ze-ether ukudibanisa namanzi ukwenza iibhondi ze-hydrogen, ukuze amanzi akhululekile abe ngamanzi abophekileyo, ukuze alawule ngokufanelekileyo ukukhushulwa kwamanzi aphezulu kunye nobushushu obuphezulu obubangelwa ukuphuphuma kwamanzi aphezulu kunye nobushushu obuphezulu obubangelwa ukuphuphuma kwamanzi aphezulu kunye nokushisa kwamanzi.
Umgangatho ophezulu we-cellulose we-HPMC unokuthi uhlakazwe ngokulinganayo kwaye ngokufanelekileyo kwiimveliso ze-samente kunye ne-gypsum-based based, kwaye ifake zonke iinqununu eziqinileyo, kwaye zenze ifilimu yokumanzisa, kwaye ukufuma kwisiseko kukhishwa ngokuthe ngcembe kwixesha elide. I-hydration reaction ye-coagulating material iyenzeka, ngaloo ndlela iqinisekisa amandla okudibanisa kunye namandla oxinzelelo lwezinto. Ngoko ke, kwiqondo lokushisa eliphezulu lokwakhiwa kwehlobo, ukuze kuphunyezwe umphumo wokugcinwa kwamanzi, kuyimfuneko yokongeza iimveliso ze-HPMC ezikumgangatho ophezulu ngokwefomula, ngaphandle koko, kuya kubakho ukungonelanga kwe-hydration, ukunciphisa amandla, ukuqhekeka, ukugoba kunye nokuwa okubangelwa ukomisa ngokukhawuleza. Kwakhona kwandisa ubunzima bokwakha kubasebenzi. Njengoko ubushushu buncipha, isixa esongezelelweyo se-HPMC sinokuncitshiswa ngokuthe ngcembe, kwaye umphumo ofanayo wokugcinwa kwamanzi unokufumaneka.
Ixesha lokuposa: Mar-26-2022