Ukugcinwa kwamanzi kwi-hydroxypropyl methylcellulose yenye yezinto ezibalulekileyo ze-hydroxypropyl methylcellulose. Izinto ezifana nobushushu bomoya, ubushushu kunye nesantya soxinzelelo lomoya ziya kuchaphazela izinga lokuguquguquka kwamanzi kudaka lwesamente kunye neemveliso ezisekwe kwigypsum. Ngoko ke, ngamaxesha ahlukeneyo, kukho ukungafani kwisiphumo sokugcinwa kwamanzi kwiimveliso ezinomlinganiselo ofanayo we-hydroxypropyl methylcellulose eyongeziweyo.
Ngokuqhelekileyo, i-viscosity ephezulu ye-hydroxypropyl methylcellulose, ngcono ukugcinwa kwamanzi kuya kuba ngcono, kodwa umphumo we-viscosity ekugcinweni kwamanzi uya kuncitshiswa xa i-viscosity idlula i-100,000 mpa. Kwi-hydroxypropyl methylcellulose ene-viscosity engaphezu kwe-100,000, kuyimfuneko ukwandisa inani le-hydroxypropyl methylcellulose ukwandisa kakhulu izinga lokugcinwa kwamanzi.
Kulwakhiwo oluthile, umphumo wokugcina amanzi we-slurry unokulungiswa ngokunyuka okanye ukunciphisa inani le-hydroxypropyl methylcellulose. Iimveliso ze-Hydroxypropyl methylcellulose zinokucombulula ngempumelelo ingxaki yokugcinwa kwamanzi phantsi kobushushu obuphezulu. Ngamaxesha okushisa aphezulu, ngokukodwa kwiindawo ezishushu nezomileyo kunye nokwakhiwa kwe-layer-layer encinci kwicala elinelanga, i-high quality hydroxypropyl methylcellulose iyadingeka ukuze kuphuculwe ukugcinwa kwamanzi kwi-slurry.
Umgangatho ophezulu we-hydroxypropyl methylcellulose unokufana okuhle kakhulu. Amaqela ayo e-methoxyl kunye ne-hydroxypropoxyl asasazwa ngokulinganayo ecaleni kwetsheyini yemolekyuli ye-cellulose. Inokuphucula iiathom zeoksijini kwi-hydroxyl kunye ne-ether bond. Ikhono lombutho wamanzi ukwenza iibhondi ze-hydrogen zijika amanzi akhululekileyo kumanzi adibeneyo, ngaloo ndlela ulawula ngokufanelekileyo ukukhuphuka kwamanzi okubangelwa yimozulu yobushushu obuphezulu kunye nokuphumeza ukugcinwa kwamanzi aphezulu.
Umgangatho ophezulu we-hydroxypropyl methylcellulose unokusasaza ngokulinganayo nangokufanelekileyo kwi-samente yodaka kunye neemveliso ezisekelwe kwi-gypsum, zibophe zonke iinqununu eziqinileyo, kwaye zenze ifilimu emanzi, kwaye ukufuma kwisiseko kuya kukhutshwa ngokuthe ngcembe kwixesha elide. Ukusabela kwe-hydration kwenzeka kunye ne-inorganic gelling material, ngaloo ndlela iqinisekisa amandla ebhondi kunye namandla okunyamezela kwezinto. Ke ngoko, ekwakhiweni kwehlobo lobushushu obuphezulu, ukuze kufezekiswe umphumo wokugcinwa kwamanzi, kuyimfuneko ukongeza iimveliso ezikumgangatho ophezulu we-hydroxypropyl methylcellulose ngobuninzi obaneleyo ngokwefomula, ngaphandle koko, ukungonelanga kwe-hydration, ukunciphisa amandla kunye nokuqhekeka kuya kwenzeka ngenxa. ukomisa ngokugqithisileyo. Iingxaki ezisemgangathweni ezinjengomngxuma, ukugrunjwa nokuwa nazo zandisa ubunzima bokwakha kubasebenzi. Njengoko iqondo lokushisa lihla, inani le-hydroxypropyl methylcellulose elongezelelweyo lingancitshiswa ngokuthe ngcembe, kwaye umphumo ofanayo wokugcinwa kwamanzi unokufumaneka.
Ixesha lokuposa: Apr-13-2023