1. I-Hydroxypropyl methyl celluloseUma encibilika emanzini abandayo, amanzi ashisayo ancibilikile azobhekana nobunzima. Kodwa izinga lokushisa lawo lokugaya emanzini ashisayo liphakeme kakhulu kunele-methyl cellulose. Ukuncibilika kwe-methyl cellulose emanzini abandayo nakho kuthuthuke kakhulu.
2. I-viscosity ye-hydroxypropyl methyl cellulose ihlobene nesisindo sayo sama-molecule, kanti isisindo sama-molecule esikhulu yi-viscosity ephezulu. Izinga lokushisa lizothinta ne-viscosity yayo, izinga lokushisa liyakhuphuka, i-viscosity iyancipha. Kodwa-ke, i-viscosity yokushisa okuphezulu iphansi kuneye-methyl cellulose. Isixazululo sizinzile uma sigcinwa ekushiseni kwegumbi.
3. I-Hydroxypropyl methyl cellulose izinzile ku-asidi kanye ne-alkali, futhi isixazululo sayo samanzi sizinzile kakhulu ku-pH=2~12. I-Caustic soda kanye namanzi e-lime awanayo imiphumela emihle ezimpahleni zayo, kodwa i-alkali ingasheshisa izinga layo lokuncibilika futhi ithuthukise i-viscosity yephini. I-Hydroxypropyl methyl cellulose izinzile kusawoti ojwayelekile, kodwa lapho ukuhlushwa kwesisombululo sikasawoti kuphezulu, i-viscosity yesisombululo se-hydroxypropyl methyl cellulose ivame ukwanda.
4. Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuncike enanini layo lokwengeza, i-viscosity, njll. Izinga lokugcinwa kwamanzi ngaphansi kwenani elifanayo lokwengeza liphakeme kunele-methyl cellulose.
5. Ukunamathela kwe-hydroxypropyl methyl cellulose ekwakhiweni kwe-mortar kuphakeme kunokwe-methyl cellulose.
6. I-Hydroxypropyl methyl celluloseinokumelana okungcono kwama-enzyme kune-methyl cellulose, futhi amathuba okuwohloka kwama-enzyme esixazululweni aphansi kune-methyl cellulose.
Isikhathi sokuthunyelwe: Ephreli-26-2024