Ukuncibilika kwe-Ethyl cellulose ku-acetone

I-Ethyl cellulose iyi-polymer esetshenziswa kakhulu ezimbonini ezahlukahlukene, kufaka phakathi ezemithi, ukudla, nokunakekelwa komuntu siqu. Iyaziwa ngezakhiwo zayo ezinhle kakhulu zokwakha ifilimu, ukuhambisana okuphezulu nezinye izinto, nokumelana okuhle namakhemikhali kanye nezici zemvelo. Enye yezinto ezibalulekile ze-ethyl cellulose ukuncibilika kwayo, okungahlukahluka kuye ngokuthi i-solvent esetshenzisiwe.

I-acetone iyi-solvent evamile evame ukusetshenziswa ekukhiqizeni amafilimu e-ethyl cellulose kanye nezingubo. I-Ethyl cellulose inyibilika kancane ku-acetone, okusho ukuthi ingancibilika ngokwezinga elithile kodwa ingase ingancibiliki ngokugcwele. Izinga lokunyibilika kwe-ethyl cellulose ku-acetone lincike ezintweni ezahlukahlukene njengesisindo samangqamuzana, izinga le-ethoxylation, kanye nokugcwala kwe-polymer.

Ngokuvamile, isisindo esiphezulu se-ethyl cellulose ijwayele ukuncibilika kancane ku-acetone uma iqhathaniswa nesisindo samangqamuzana esiphansi se-ethyl cellulose. Lokhu kungenxa yokuthi ama-polymers esisindo samangqamuzana aphezulu anezinga eliphakeme le-polymerization, okuholela esakhiweni esiyinkimbinkimbi nesigcwele ngokuqinile esimelana kakhulu nokuxazululeka. Ngokufanayo, i-ethyl cellulose enezinga eliphakeme le-ethoxylation ijwayele ukuncibilika kancane ku-acetone ngenxa yokwanda kwe-hydrophobicity ye-polymer.

Ukuncibilika kwe-ethyl cellulose ku-acetone nakho kungathinteka ngokugxila kwe-polymer ku-solvent. Emazingeni aphansi, i-ethyl cellulose maningi amathuba okuthi incibilike ku-acetone, kuyilapho ekugxilweni okuphezulu, ukuncibilika kungase kwehle. Lokhu kungenxa yokuthi ekugxilweni okuphezulu, ama-molecule e-ethyl cellulose kungenzeka ukuthi axhumane, enze inethiwekhi yamaketanga e-polymer angancibiliki kancane ku-solvent.

I-solubility ye-ethyl cellulose ku-acetone ingathuthukiswa ngokungezwa kwezinye izincibilikisi noma ama-plasticizers. Isibonelo, ukungezwa kwe-ethanol noma i-isopropanol ku-acetone kungakhuphula ukunyibilika kwe-ethyl cellulose ngokuphazamisa ukusebenzisana kwe-intermolecular phakathi kwamaketanga e-polymer. Ngokufanayo, ukungezwa kwama-plasticizers afana ne-triethyl citrate noma i-dibutyl phthalate kungakhuphula ukuncibilika kwe-ethyl cellulose ngokunciphisa amandla e-intermolecular phakathi kwamaketanga e-polymer.

Kafushane, i-ethyl cellulose inyibilika kancane ku-acetone, futhi ukunyibilika kwayo kungahluka kuye ngezinto ezihlukahlukene ezifana nesisindo samangqamuzana, izinga le-ethoxylation, nokugxila kwe-polymer. Ukuncibilika kwe-ethyl cellulose ku-acetone kungathuthukiswa ngokungezwa kwezinye izincibilikisi noma ama-plasticizers, okuyenza ibe i-polymer eguquguqukayo ukuze isetshenziswe ezinhlelweni ezahlukahlukene.