Uyini umehluko phakathi kwe-cellulose ether ne-cellulose?

I-Cellulose ne-cellulose ether kokubili kuthathwe ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo. Kodwa-ke, banomehluko ohlukile ezakhiweni zabo zamakhemikhali kanye nezakhiwo:

1. Isakhiwo Sekhemikhali: I-Cellulose iyi-polysaccharide eqondile ehlanganisa amayunithi eglucose aphindaphindayo axhunywe ndawonye ngamabhondi e-β(1→4) e-glycosidic. Kuyi-polymer eqondile enezinga eliphakeme lokucwebezela.
2. I-Hydrophilicity: I-Cellulose ngokwemvelo i-hydrophilic, okusho ukuthi inokuhlangana okunamandla kwamanzi futhi ingakwazi ukumunca amanani abalulekile omswakama. Lesi sakhiwo sinomthelela ekuziphatheni kwayo ezinhlelweni ezahlukahlukene, kufaka phakathi ukusebenzisana kwayo nezinhlelo ezisekelwe emanzini njengezingxube zikasimende.
3. Ukunyibilika: I-cellulose ehlanzekile ayincibiliki emanzini nasezincibilikilweni eziningi ze-organic ngenxa yesakhiwo sayo esicwebezelayo kakhulu kanye nokuhlanganisa i-hydrogen phakathi kwamaketanga e-polymer.
4. I-Derivatization: I-Cellulose ether iwuhlobo olushintshiwe lwe-cellulose olutholakala ngokuphuma kwamakhemikhali. Le nqubo ibandakanya ukwethula amaqembu asebenzayo, njenge-hydroxyethyl, hydroxypropyl, methyl, noma amaqembu e-carboxymethyl, kumgogodla we-cellulose. Lezi zinguquko zishintsha izici ze-cellulose, okuhlanganisa ukunyibilika kwayo, ukuziphatha kwe-rheological, nokusebenzelana nezinye izinto.
5. Ukuncibilika Emanzini: Ama-cellulose ether ngokuvamile ayancibilika noma ahlakazeke emanzini, kuye ngohlobo oluthile nezinga lokushintshwa. Lokhu kuncibilika kubenza basebenziseke kakhulu ezimbonini ezahlukahlukene, okuhlanganisa ezemithi, ukudla, izimonyo, nezokwakha.
6. Isicelo: Ama-cellulose ether athola ukusetshenziswa okusabalele njengama-ejenti ajiyayo, ama-stabilizer, ama-binders, nama-ejenti akha ifilimu ezinhlobonhlobo zemikhiqizo nezinqubo. Ekwakhiweni, zivame ukusetshenziswa njengezithasiselo ezintweni ezisekelwe kusimende ukuthuthukisa ukusebenza, ukugcinwa kwamanzi, ukunamathela, nezinye izakhiwo.

Kafushane, ngenkathi i-cellulose ne-cellulose ether ihlanganyela umsuka ofanayo, i-cellulose ether iguqulwa ngamakhemikhali ukuze yethule izici ezithile eziyenza inyibilike noma ihlakazeke emanzini futhi ifanelekele ukusetshenziswa okuhlukahlukene lapho ukulawula ukuziphatha kwe-rheological nokusebenzelana nezinye izinto kuyadingeka.