Izinto ezifana nobushushu bomoya, ubushushu kunye noxinzelelo lomoya ziya kuchaphazela izinga lokuguquguquka kokufuma kudaka lwesamente kunye neemveliso ezisekwe kwigypsum.Ngoko ke, ngamaxesha ahlukeneyo, umphumo wokugcinwa kwamanzi kwixabiso elifanayo le-HPMC lihlukile.
Kulwakhiwo oluthile, umphumo wokugcinwa kwamanzi we-slurry unokulungiswa ngokunyuka okanye ukunciphisa inani le-HPMC elongezelelweyo.Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose ether phantsi kweemeko eziphezulu zokushisa luphawu olubalulekileyo lokuhlukanisa umgangatho we-hydroxypropyl methyl cellulose ether.Iimveliso ezigqwesileyo ze-HPMC zinokusombulula ngempumelelo ingxaki yokugcinwa kwamanzi kumaqondo obushushu aphezulu.
Ngamaxesha obushushu obuphezulu, ngakumbi kwiindawo ezishushu nezomileyo kunye nolwakhiwo olubhityileyo kwicala elinelanga, i-HPMC ephezulu iyafuneka ukuze kuphuculwe ukugcinwa kwamanzi kwi-slurry.Umgangatho ophezulu we-HPMC unokufana okuhle kakhulu.Amaqela ayo e-methoxy kunye ne-hydroxypropoxy asasazwa ngokulinganayo kunye ne-cellulose molecular chain, enokuphucula amandla e-athomu ze-oksijini kwi-hydroxyl kunye ne-ether bonds ukudibanisa namanzi ukwenza i-hydrogen bonds, ukuze amanzi akhululekile abe ngamanzi adibeneyo, ngaloo ndlela alawule ngokufanelekileyo. ukuguquka kwamanzi okuba ngumphunga obangelwa yimozulu yobushushu obuphezulu, kunye nokuphumeza ukugcinwa kwamanzi aphezulu.
Umgangatho ophezulu we-cellulose i-HPMC inokusasazwa ngokulinganayo nangokufanelekileyo kwi-samente yodaka kunye neemveliso ezisekelwe kwi-gypsum, kwaye isonge onke amasuntswana aqinileyo, kwaye wenze ifilimu yokumanzisa.Amanzi akwisiseko akhululwa ngokuthe ngcembe kwixesha elide.Izinto eziphathekayo zihamba nge-hydration reaction ukuze kuqinisekiswe amandla okudibanisa kunye namandla okuxinzelela kwezinto.Ngoko ke, kulwakhiwo oluphezulu lwasehlotyeni, ukuze kuphunyezwe umphumo wokugcinwa kwamanzi, iimveliso ze-HPMC ezikumgangatho ophezulu kufuneka zongezwe kwimiyinge eyaneleyo ngokwefomula, kungenjalo, ukungonelanga kwe-hydration, ukunciphisa amandla, ukuqhekeka, ukugoba kunye nokuwa. ngokomisa ngokugqithisileyo kuya kwenzeka.Kwakhona kwandisa ubunzima bokwakha kubasebenzi.Njengoko iqondo lokushisa liyancipha, inani le-HPMC elongezelelweyo lingancitshiswa ngokuthe ngcembe, kwaye umphumo ofanayo wokugcinwa kwamanzi unokufumaneka.
Ixesha lokuposa: Apr-25-2020