Hydroxyethyl cellulose (HEC) ke polima e qhibilihang ka metsi e sebelisoang hangata lits'ebetsong tse fapaneng tse kang likhomaretsi, lira, le lihlahisoa tsa tlhokomelo ea motho. Ho qhaqha HEC ka metsing ke mokhoa o bonolo o ka finyelloang ho sebelisa mehato e latelang:
Khetha kereiti e nepahetseng ea HEC: HEC e fumaneha ka limaraka tse fapaneng ka litekanyo tse fapaneng tsa limolek'hule le li-degree tsa substitution. Khetho ea kereiti e tla ipapisa le ts'ebeliso e ikhethileng le thepa e lakatsehang ea sehlahisoa sa ho qetela.
Lokisetsa metsi: Mohato oa pele ke ho lokisa metsi ka ho metha palo e hlokahalang ea metsi le ho a futhumatsa mocheso o pakeng tsa 70-80 ° C. Ho futhumatsa metsi ho tla thusa ho potlakisa ts'ebetso ea ho qhibiliha le ho netefatsa hore HEC e na le metsi ka ho feletseng.
Eketsa HEC metsing: Hang ha metsi a se a fihlile mocheso o lakatsehang, butle-butle eketsa HEC metsing ha u ntse u susumetsa ka ho tsoelang pele. Ke habohlokoa ho eketsa HEC butle-butle le butle-butle ho qoba ho bokellana le ho etsa bonnete ba hore e hasane ka ho feletseng ka metsing.
Tsoela pele ho susumetsa: Ka mor'a ho eketsa HEC metsing, tsoela pele ho susumetsa motsoako ka metsotso e ka bang 30. Sena se tla thusa ho etsa bonnete ba hore HEC e qhibililoe ka botlalo 'me e na le metsi.
Lumella motsoako hore o pholile: Ka mor'a hore HEC e qhibilihe ka ho feletseng, lumella motsoako hore o pholile mocheso oa kamore. Ha motsoako o ntse o pholile, o tla ba motenya mme o fihle ho viscosity ea ho qetela.
Fetola pH le viscosity: Ho itšetlehile ka kopo e khethehileng, ho ka 'na ha hlokahala ho fetola pH le viscosity ea tharollo ea HEC. Sena se ka etsoa ka ho eketsa asiti kapa setsi ho lokisa pH le ka ho eketsa metsi kapa HEC e eketsehileng ho lokisa viscosity.
ho qhaqha HEC ka metsing ke mokhoa o bonolo o ka finyelloang ka mehato e seng mekae ea motheo. Ka ho khetha tekanyo e nepahetseng ea HEC, ho lokisetsa metsi hantle, le ho susumetsa motsoako ka ho tsoelang pele, hoa khoneha ho fumana tharollo ea HEC e qhibilihisitsoeng ka ho feletseng e ka sebelisoang mefuteng e sa tšoaneng ea likopo.
Nako ea poso: Mar-08-2023