I-Soluble hydroxypropyl methyl cellulose (HPMC) luhlobo lwe-non-ionic cellulose ether, eyenziwe kwi-cellulose ye-polymer yendalo ngoluhlu lwe-chemical processing.IHypromellose (HPMC) ngumgubo omhlophe onyibilikayo emanzini abandayo ukwenza isisombululo esicacileyo, esibonakalayo.Ineempawu zokuqina, ukunamathela, ukusabalalisa, ukumiliselwa, ukubunjwa kwefilimu, ukumiswa, i-adsorption, i-gelation, umsebenzi ongaphezulu, ukugcinwa kwamanzi kunye nokukhusela i-colloid.Ukugcinwa kwamanzi kuyipropathi ebalulekileyo ye-hypromellose HPMC, ekwaxhatshazwa ngabavelisi abaninzi bodaka oluxutywe ngamanzi e-China.Izinto ezichaphazela ukugcinwa kwamanzi odaka oluxutywe ngamanzi lubandakanya inani le-HPMC, i-viscosity ye-HPMC, ubungakanani beqhekeza kunye nobushushu bendalo.I-Hypromellose HPMC idlala indima ebalulekileyo kudaka kwimiba emithathu: ugcino lwamanzi olugqwesileyo, ifuthe layo kubumbano lodaka kunye ne-thixotropy, kunye nokusebenzisana kwayo nesamente.Umsebenzi wokugcinwa kwamanzi we-cellulose ether kuxhomekeke ekufakweni kwamanzi kwisiseko, ukubunjwa komdaka, ubukhulu bomdaka, imfuno yamanzi yodaka kunye nexesha lokumisela izinto zokumisela.Okukhona i-hypromellose ibonakala ngokucacileyo, ngcono ukugcinwa kwamanzi.
Izinto ezichaphazela ukugcinwa kwamanzi kwi-mortar ziquka i-viscosity ye-cellulose ether, imali eyongezelelweyo, i-particle fineness kunye nokushisa kwenkonzo.Okukhona i-viscosity ye-cellulose ether, ngcono ukugcinwa kwamanzi.I-Viscosity yiparameter ebalulekileyo yokusebenza kwe-HPMC.Kwimveliso efanayo, elinganiswa ngeendlela ezahlukeneyo zeziphumo ze-viscosity ziyahluka kakhulu, kwaye ezinye ziphinda ziphindwe kabini.Ngoko ke, xa uthelekisa i-viscosity, kufuneka ibe kwindlela efanayo yokuvavanya phakathi, kubandakanywa ukushisa, i-rotor kunye nokunye.Ngokuqhelekileyo, okukhona i-viscosity iphezulu, ingcono isiphumo sokugcina amanzi.Nangona kunjalo, ukuphakama kwe-viscosity kukuba, ubunzima bemolekyuli be-HPMC buphezulu, ukunyibilika kwe-HPMC kuya kuncipha ngokufanelekileyo, okunefuthe elibi kumandla kunye nokusebenza kokwakhiwa kodaka.Ukuphakama kwe-viscosity, ingcono isiphumo sokutyeba sodaka, kodwa alulingani nobudlelwane.Ukuphakama kwe-viscosity, i-viscous yodaka olumanzi luya kuba, zombini ulwakhiwo, ukusebenza kokunamathela kwi-scraper kunye nokunamathela okuphezulu kwi-substrate.Kodwa akuloncedo ukwandisa amandla esakhiwo sodaka olumanzi ngokwalo.Zombini ulwakhiwo, ukusebenza anti-sagging ukusebenza.Ngokwahlukileyo, enye i-hypromellose elungisiweyo ene-viscosity ephantsi ukuya ephakathi ibonise ukusebenza okugqwesileyo ekuphuculeni amandla okwakhiwa kweedaka ezimanzi.Ukuphakama komxholo we-cellulose ether kwi-mortar, ngcono ipropati yokubamba amanzi, iphezulu i-viscosity kunye nepropati yokubamba amanzi.Ukulunga kwakhona kusalathiso esibalulekileyo somsebenzi we-hypromellose.I-fineness ye-hypromellose nayo inempembelelo ethile kumthamo wayo wokubamba amanzi.Ngokubanzi, kwi-hypromellose ene-viscosity efanayo kodwa ukucoleka okwahlukileyo, phantsi komlinganiselo ofanayo wokongezwa, ukucoleka kokucoleka, kokukhona umphumo wokugcinwa kwamanzi ungcono.
Kwi-mortar edibeneyo emanzi, ukongezwa kwe-cellulose ether HPMC iphantsi kakhulu, kodwa inokuphucula ukusebenza kokwakhiwa kodaka oluxutywe manzi.Ukukhethwa ngokufanelekileyo kwe-hypromellose kunempembelelo enkulu ekusebenzeni kodaka oluxutywe ngamanzi.
Ixesha lokuposa: Jul-27-2023