Ukwakha i-hydroxypropyl methyl cellulose ekhethekile ukugwema ukungena komswakama odongeni, kuzoba inani elifanele lomswakama elingahlala ku-mortar, i-samente ikhiqiza ukusebenza okuhle emanzini futhi indima ye-hydroxypropyl methyl cellulose ku-mortar ingaba ngokulingana ne-viscosity, lapho i-viscosity ye-hydroxypropyl methyl cellulose igcinwa khona izoba ngcono.
Uma umswakama we-hydroxypropyl methyl cellulose usuphezulu kakhulu, ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuzoncipha, futhi kuzoholela ngqo ekusebenzeni kahle kwe-hydroxypropyl methyl cellulose. Sijwayelene nezinto ezizokwenza amaphutha kube lula kakhulu, kufanele sihlale sihlanzekile, sizothola imiphumela engalindelekile.
I-viscosity ebonakalayo iyinkomba ebalulekile ye-hydroxypropyl methyl cellulose. Izindlela ezivamile zokulinganisa ukulinganisa i-viscosity ejikelezayo, ukulinganisa i-viscosity ye-capillary kanye nokulinganisa i-viscosity yokuwa.
Ngaphambilini, i-hydroxypropyl methyl cellulose yayinqunywa ngokulinganisa i-capillary viscosity, kusetshenziswa i-Uhnscher viscometer. Isixazululo sokulinganisa ngokuvamile siyisisombululo samanzi esingu-2, futhi ifomula ithi: V=Kdt. I-V iyi-viscosity ngemizuzwana, i-K iyi-constant ye-viscometer, i-D iyi-density ekushiseni okuhambisanayo, kanti i-T iyisikhathi esithathayo ukusuka phezulu kuya phansi kwe-viscometer ngemizuzwana. Le ndlela yokusebenza iyinkimbinkimbi kakhulu, uma kukhona izinto ezinganyibiliki, kulula ukudala amaphutha, kunzima ukuhlonza ikhwalithi ye-hydroxypropyl methylcellulose.
Inkinga yokwakha i-glue stratification iyinkinga enkulu amakhasimende abhekene nayo. Okokuqala, inkinga yezinto zokusetshenziswa kufanele icatshangelwe ekwakheni i-glue stratification. Isizathu esiyinhloko sokwakha i-glue stratification ukungahambelani phakathi kwe-polyvinyl alcohol (PVA) ne-hydroxypropyl methylcellulose (HPMC). Isizathu sesibili ukuthi isikhathi sokuxuba asanele; Kukhona futhi ukusebenza kwe-glue stratification akukuhle.
Ekwakheni ama-glue, i-instant hydroxypropyl methylcellulose (HPMC) kumele isetshenziswe ngoba i-HPMC ihlakazeka emanzini kuphela futhi ayincibiliki ngempela. Cishe imizuzu emi-2, i-viscosity yoketshezi iyanda kancane kancane, yakha i-colloid ecacile e-viscous.
Imikhiqizo encibilikayo eshisayo, emanzini abandayo, ingasakazwa ngokushesha emanzini ashisayo, inyamalale emanzini ashisayo, lapho izinga lokushisa lehla liye ezingeni lokushisa elithile, i-viscosity ibonakala kancane kancane, kuze kube yilapho kwakheka i-colloid ecacile e-viscous. I-Hydroxypropyl methylcellulose (HPMC) enanini elengeziwe leglue yokwakha inconywa ku-2-4kg.
I-Hydroxypropyl methyl cellulose (HPMC) ekwakheni ukuzinza kwamakhemikhali eglue, isikhunta, umphumela wokugcina amanzi muhle, futhi awuthinteki ushintsho lwe-PH, i-viscosity kusuka ku-100 000 S - 200 000 S ingasetshenziswa. Kodwa ekukhiqizeni akusikho ukuthi i-viscosity iphakeme, i-viscosity kanye namandla e-bond alingana ngokuphambene, i-viscosity iphakeme, amandla mancane, ngokuvamile i-viscosity engu-100,000S iyafaneleka.
Isikhathi sokuthunyelwe: Septhemba 16-2022