I-Ethyl cellulose i-hydrophilic noma i-hydrophobic

I-Ethyl cellulose iyi-polymer yokwenziwa esetshenziswa kabanzi 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 i-hydrophobicity yayo, okuyisilinganiso sokuhlangana kwayo emanzini.

I-Hydrophobicity iyisici sento echaza ukuthambekela kwayo ukuxosha ama-molecule amanzi. Ngokuvamile, izinto ze-hydrophobic azincibiliki noma azincibiliki kahle emanzini futhi zivame ukuhlangana namanye ama-molecule e-hydrophobic. I-Hydrophobicity ivamise ukubonakala ngokuba khona kwamaqembu angenayo i-polar noma ane-polarity ephansi esakhiweni samangqamuzana, njengamaketanga e-hydrocarbon noma izindandatho ezinuka kamnandi.

I-Ethyl cellulose ibhekwa njenge-polymer ye-hydrophobic ngenxa yokuba khona kwamaqembu e-ethyl esakhiweni sayo samangqamuzana. Amaqembu e-ethyl awawona ama-nonpolar kanye ne-hydrophobic, futhi ubukhona bawo kwandisa i-hydrophobicity yonke ye-polymer. Ngaphezu kwalokho, i-ethyl cellulose inezinga eliphansi kakhulu lokushintshwa kwamaqembu e-ethyl, okubuye kube nomthelela emlingiswa wayo we-hydrophobic.

Kodwa-ke, i-hydrophobicity ye-ethyl cellulose ingashintshwa ngokushintsha izinga lokushintshwa noma ngokungeza amaqembu e-hydrophilic esakhiweni se-polymer. Isibonelo, ukwethulwa kwamaqembu e-hydrophilic afana namaqembu e-hydroxyl noma e-carboxyl kungakhuphula i-hydrophilicity ye-polymer futhi kuthuthukise ukunyibilika kwayo emanzini. Izinga lokufaka esikhundleni lingandiswa futhi ukwandisa inani lamaqembu e-hydrophilic futhi kuthuthukise i-hydrophilicity ye-polymer.

Naphezu kwe-hydrophobicity yayo, i-ethyl cellulose isabhekwa njengento ewusizo ekusetshenzisweni okuhlukahlukene, ikakhulukazi embonini yezemithi. Uhlamvu lwayo lwe-hydrophobic luyenza ibe yinto enhle kakhulu yokuvimbela amasistimu okulethwa kwezidakamizwa, njengoba ingavimbela ukungena komswakama noma ezinye izinto ze-hydrophilic kufomu lomthamo. Lokhu kungasiza ukuvikela ukuzinza nokusebenza komuthi isikhathi eside.

Kafushane, i-ethyl cellulose iyi-polymer ye-hydrophobic ngenxa yokuba khona kwamaqembu e-nonpolar ethyl esakhiweni sayo samangqamuzana. Kodwa-ke, i-hydrophobicity yayo ingashintshwa ngokushintsha izinga lokushintsha noma ukwengeza amaqembu e-hydrophilic esakhiweni se-polymer. Naphezu kohlamvu lwayo lwe-hydrophobic, i-ethyl cellulose iseyinto ewusizo yezinhlelo zokusebenza ezihlukahlukene, ikakhulukazi embonini yezemithi.