Ingakwazi ukuxubana kwe-hpmc ne-cmc
Methyl cellulosekumhlophe noma kumhlophe njenge-fibrous noma i-powder ye-granurar; Ophunga, anambitha. Lo mkhiqizo ekuvuvukeni kwamanzi ube yisixazululo esicacile noma esincanyana se-colloidal; Insoluble ku-ethanol ephelele, chloroform noma i-diethyl ether. Ihlakazeka ngokushesha futhi ivuvukala emanzini ashisayo ku-80-90 ℃, futhi ichithwe ngokushesha ngemuva kokupholisa. Isixazululo samanzi sizinzile kakhulu emazingeni okushisa asekamelweni, futhi singakwazi ukufundela okuphezulu, futhi ijeli lingashintsha nesixazululo ngokushisa.
Inokukhula okuhle kakhulu, ukusakazeka, ukunamathela, ukuqina, ukuqina, ukugcinwa kwamanzi kanye nokwakheka kwamafilimu, kanye nokungaphambi kokwakheka kwamafilimu. Le filimu inobunzima obuhle kakhulu, ukuguquguquka nokubonakala kobala. Ngoba akuyona i-ionic, ingahambisana namanye ama-emulsifers, kepha kulula ukukhishwa ngosawoti, futhi isixazululo sizinzile okhalweni lwe-PH2 - 12. Isentimitha, icishe ibe yi-Odorless, ayinambitha, i-hygroscopic. Kulula ukuhlakazeka emanzini kube yisixazululo esibonakalayo se-gelatinous, infoluble e-ethanol nakwamanye ama-solvents ezi-organic.
Lapho i-PH yesisombululo esinamanzi angu-6.5 - 8.5, i-viscosity ye-slurry inciphisa kakhulu lapho i-pH is is aspen 7. Ukuncibilika kalula emanzini, ikhambi elisobala; Kuzinzile kakhulu kusisombululo se-alkali, futhi kulula ukujwayela nge-acid. Lapho inani le-PH lingu-2-3, kwenzeke imvula, futhi izulu lizovela endabeni kasawoti wensimbi ehlukahlukene. I-Hydroxypropyl Methyl Cellulose, eyaziwa nangokuthi i-hydroxypropyllyprose methyl, cellulose hydroxyprosell methylyl methylyllylylylylylylyl methyllllylylylylylylyl methyl, ukukhethwa kwe-cellulose emsulwa kakhulu kukotini, ngaphansi kwezimo ze-alkali ngokusheshisa okukhethekile.
Incibilika emanzini futhi iningi le-polar C kanye nesilinganiso esifanele se-ethanol / lamanzi, i-propanol / amanzi, i-dichloroethane, njll. Isixazululo samanzi sinomsebenzi ongaphezulu, ukucaca okuphezulu nokusebenza okuzinzile.I-HPMCinempahla yejeli eshisayo. Ngemuva kokushisa, ikhambi lomkhiqizo elinamanzi amanzi liyakha imvula ye-gel, bese icwilisa ngemuva kokuphola. Izinga lokushisa le-gel lemininingwane ehlukile lihlukile.
Isikhathi sePosi: APR-25-2024