1. I-Hydroxypropyl methyl celluloseencibilika emanzini abandayo, amanzi ashisayo ancibilikisiwe azohlangabezana nobunzima. Kodwa izinga lokushisa layo le-gelation emanzini ashisayo liphakeme kakhulu kunalelo le-methyl cellulose. I-solubility ye-methyl cellulose emanzini abandayo nayo ithuthukiswa kakhulu.
2. I-viscosity ye-hydroxypropyl methyl cellulose ihlobene nesisindo sayo samangqamuzana, futhi isisindo samangqamuzana esikhulu yi-viscosity ephezulu. Ukushisa kuzophinde kuthinte i-viscosity yayo, izinga lokushisa liyakhuphuka, i-viscosity iyancipha. Kodwa-ke, i-viscosity yokushisa okuphezulu iphansi kunaleyo ye-methyl cellulose. Isixazululo sizinzile uma sigcinwe ekamelweni lokushisa.
3. I-Hydroxypropyl methyl cellulose izinzile ku-asidi ne-alkali, futhi isisombululo sayo esinamanzi sizinzile kakhulu ebangeni le-pH=2~12. I-Caustic soda namanzi e-lime ayinawo umthelela omkhulu ezindaweni zayo, kodwa i-alkali ingasheshisa izinga lokuqedwa kwayo futhi ithuthukise i-viscosity yephini. IHydroxypropyl methyl cellulose inozinzo kusawoti ojwayelekile, kodwa lapho ukugcwala kwesixazululo sikasawoti kuphezulu, i-viscosity yesixazululo se-hydroxypropyl methyl cellulose ivame ukukhula.
4. Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuncike enanini elengezayo, i-viscosity, njll. Izinga lokugcinwa kwamanzi ngaphansi kwenani elifanayo lokwengeza lingaphezulu kwele-methyl cellulose.
5. Ukunamathela kwe-hydroxypropyl methyl cellulose ekwakhiweni kodaka kungaphezulu kwalokho kwe-methyl cellulose.
6. I-Hydroxypropyl methyl celluloseinokumelana ne-enzyme engcono kune-methyl cellulose, futhi amathuba okuwohloka kwe-enzymatic esixazululweni aphansi kune-methyl cellulose.
Isikhathi sokuthumela: Apr-26-2024