Ukuncibilika kwe-Ethyl cellulose ku-ethanol

I-Ethyl cellulose iyi-polymer yokwenziwa evame ukusetshenziswa ezimbonini ezahlukahlukene, kufaka phakathi ezemithi, ukudla, nokunakekelwa komuntu siqu. Enye yezinto ezibalulekile ze-ethyl cellulose ukuncibilika kwayo ezincibilikisini ezahlukene, okubalulekile ekusetshenzisweni kwayo okuhlukahlukene. I-Ethanol ingesinye sezincibilikisi ezingasetshenziswa ukuncibilikisa i-ethyl cellulose.

Ukunyibilika kwe-ethyl cellulose ku-ethanol kuncike ezintweni ezihlukahlukene ezifana nezinga le-ethylation, isisindo samangqamuzana e-polymer, kanye nezinga lokushisa le-solvent. Ngokuvamile, i-ethyl cellulose enezinga eliphakeme le-ethylation inyibilika kakhulu ku-ethanol uma kuqhathaniswa nalawo anezinga eliphansi le-ethylation. Isisindo samangqamuzana e-polymer naso sidlala indima, njengoba ama-polymer esisindo samangqamuzana aphezulu angase adinge ukugxiliswa okuphezulu kwe-ethanol noma isikhathi eside ukuze ancibilike.

Izinga lokushisa le-solvent liphinde libe nomthelela ekuncibilikeni kwe-ethyl cellulose ku-ethanol. Amazinga okushisa aphakeme angakhuphula ukuncibilika kwe-polymer ngenxa yamandla e-kinetic anda ama-athomu ancibilikayo, angasiza ukudiliza amaketanga e-polymer futhi kube lula inqubo yokuhlakazeka. Nokho, izinga lokushisa akufanele lidlule umkhawulo othile njengoba lingase libangele ukuba i-polymer yehlise izinga noma ilahlekelwe ubuqotho bayo besakhiwo.

Ngokuvamile, i-ethyl cellulose ibhekwa njengencibilika kakhulu ku-ethanol uma iqhathaniswa nezinye izincibilikisi ezivamile ezifana namanzi, i-methanol, ne-acetone. I-Ethanol iyi-solvent ye-polar, futhi i-polarity yayo ingasiza ekuphuleni izibopho ze-hydrogen phakathi kwamaketanga e-polymer, okuvumela i-polymer ukuba incibilike.