IHydroxypropyl methylcellulose, ekubhekiselwa kuyo njenge: HPMC okanye i-MHPC.Ukubonakala kumhlophe okanye umgubo omhlophe;eyona nto isetyenziswayo 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, ukukhahlela, 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 zeqondo lokushisa luphawu olubalulekileyo lokuhlukanisa umgangatho we-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-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 iibhondi ze-hydrogen., ukuze amanzi akhululekile abe ngamanzi abophekileyo, ukuze alawule ngokufanelekileyo ukufuduka kwamanzi okubangelwa yimozulu yokushisa okuphezulu, kunye nokufezekisa ukugcinwa kwamanzi 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-HPMC esifunekayo ukufumana ugcino lwamanzi olwaneleyo luxhomekeke koku:
1. I-absorbency yomgangatho wesiseko
2. Ukuqulunqwa kodaka
3. Umaleko wodaka ubukhulu
4. Imfuno yamanzi yodaka
5. Ixesha lokumisela i-gelling material
Umgangatho ophezulu we-hydroxypropyl methylcellulose unokusasazwa ngokulinganayo nangokufanelekileyo kudaka lwesamente kunye neemveliso ezisekwe kwigypsum, kwaye usonge onke amasuntswana aqinileyo, kwaye wenze ifilimu yokumanzisa, kwaye ukufuma kwisiseko kukhutshwa kancinci kancinci ixesha elide, ukusabela kwe-hydration kunye ne-inorganic gelling material ukuqinisekisa amandla okudibanisa 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: Jan-16-2023