I-Hydroxypropyl methylcellulose isetyenziswa kakhulu njenge-dispersant kwimveliso ye-polyvinyl chloride, kwaye iyona arhente encedisayo ekulungiseleleni i-PVC ngokumiswa kwe-polymerization.Kwinkqubo yolwakhiwo lweshishini lokwakha, isetyenziswa ikakhulu kulwakhiwo lomatshini olufana nolwakhiwo eludongeni, ukutyabeka, ukucanda, njl.;ngakumbi kulwakhiwo lokuhombisa, lusetyenziselwa ukuncamathelisa iithayile zeceramic, ibhastile, kunye nemihombiso yeplastiki.Inamandla amakhulu okudibanisa kwaye inokunciphisa inani le-samente..Isetyenziswa njenge-thickener kushishino lwepeyinti, enokwenza umaleko uqaqambe kwaye uthambile, uthintele ukususwa komgubo, uphucule ukusebenza komgangatho, njl.
Kwi-sement mortar kunye ne-gypsum-based slurry, i-hydroxypropyl methylcellulose idlala indima enkulu yokugcina amanzi kunye nokuqina, okunokuphucula ngokufanelekileyo amandla okubambisana kunye nokuxhatshazwa kwe-sag ye-slurry.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.Kulwakhiwo oluthile, umphumo wokugcinwa kwamanzi we-slurry unokulungiswa ngokunyuka okanye ukunciphisa inani le-HPMC elongezelelweyo.Ukugcinwa kwamanzi kwe-methyl cellulose ether phantsi kweemeko eziphezulu zokushisa kuphawu olubalulekileyo lokuhlukanisa umgangatho we-hydroxypropyl methyl cellulose ether.Iimveliso ezigqwesileyo ze-hydroxypropyl methylcellulose zinokucombulula 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-hydroxypropyl methylcellulose (HPMC) unokufana okuhle kakhulu.Amaqela ayo e-methoxy kunye ne-hydroxypropoxy asasazwa ngokulinganayo kunye ne-cellulose molecular chain, enokunyusa ii-athomu ze-oksijini kwi-hydroxyl kunye ne-ether bond.Ukukwazi ukudibanisa namanzi ukwenza iibhondi ze-hydrogen zijika amanzi asimahla kumanzi abophekileyo, ngaloo ndlela kulawulwa ngokufanelekileyo ukuvela kwamanzi okuba ngumphunga okubangelwa yimozulu yobushushu obuphezulu kunye nokufikelela kugcino lwamanzi aphezulu.Amanzi ayafuneka ukuze kufakwe amanzi ukuze kusete izixhobo zesamente ezifana nesamente kunye negypsum.Isixa esichanekileyo se-HPMC sinokugcina ukufuma kwidaka ixesha elide ngokwaneleyo ukuze ukusetwa kunye nenkqubo yokuqina iqhubeke.
Isixa se-hydroxypropyl methylcellulose (HPMC) efunekayo ukufumana ugcino lwamanzi olwaneleyo luxhomekeke koku:
Ukufunxa komaleko wesiseko
Ukuqulunqwa kodaka
Umaleko wodaka ubukhulu
Imfuno yamanzi ngodaka
Ixesha lokumisela izinto zesamente
I-Hydroxypropyl methylcellulose inokusasazwa ngokulinganayo nangokufanelekileyo kudaka lwesamente kunye ne-gypsum-based based, kwaye isonge onke amasuntswana aqinileyo, kwaye wenze ifilimu yokumanzisa, ukufuma kwisiseko kukhutshwa kancinci kancinci ixesha elide, kwaye iyahambelana ne-inorganic. I-hydration reaction ye-gelled material iqinisekisa amandla ebhondi kunye namandla okunyamezela kwezinto.
Ngoko ke, kulwakhiwo oluphezulu lwasehlotyeni, ukuze kufezekiswe umphumo wokugcinwa kwamanzi, kuyimfuneko ukongeza iimveliso ze-HPMC ezikumgangatho ophezulu ngobungakanani obaneleyo ngokwefomula, ngaphandle koko, kuya kubakho ukungonelanga kwe-hydration, ukunciphisa amandla, ukuqhekeka, ukugoba. kunye nokuphalala okubangelwa kukomisa kakhulu.iingxaki, kodwa ukwandisa ubunzima bokwakha kwabasebenzi.Njengoko iqondo lobushushu liyehla, ubungakanani bamanzi HPMC eyongeziweyo ingancitshiswa ngokuthe ngcembe, kwaye isiphumo efanayo yokugcina amanzi inokufumaneka.
Ixesha lokuposa: Apr-10-2023