Ingabe i-cellulose imunca kahle amanzi?

I-Cellulose, i-organic compound eningi kakhulu eMhlabeni, ibonisa izici eziphawulekayo, enye yazo ikhono layo lokumunca amanzi. Le mvelo ye-hygroscopic ye-cellulose ithola ukusetshenziswa okubanzi ezimbonini ezihlukahlukene, kusukela kwezindwangu kuya kwezokwelapha. Ukuqonda izindlela zokumuncwa kwamanzi kwe-cellulose kubalulekile ekuthuthukiseni ukusetshenziswa kwawo ezinhlelweni ezahlukene.

Isingeniso:

I-Cellulose, i-polysaccharide eyakhiwe amayunithi e-glucose axhunywe ngamabhondi e-β(1→4) e-glycosidic, iyisakhi esiyinhloko sezindonga zamaseli ezitshalo. Ubuningi bayo ngokwemvelo, ukuvuselelwa, kanye nokubola kwayo kuyenza ibe into efiseleka kakhulu ezisetshenziswa eziningi zezimboni. Enye yezinto ezikhangayo ze-cellulose ikhono layo lokumunca amanzi ngokuphumelelayo. Lesi sici sinomthelela omkhulu emikhakheni eyahlukene efana nezindwangu, ukwenza amaphepha, ukudla, ezemithi, kanye ne-biomaterials. Ukuqonda izindlela eziyisisekelo sokuziphatha kokumuncwa kwamanzi kwe-cellulose kubalulekile ukuze kusetshenziswe amandla ako aphelele kulezi zinhlelo zokusebenza.

Izinto Ezithonya Ukumuncwa Kwamanzi NgeCellulose:

Kunezici ezimbalwa ezithonya umthamo wokumunca amanzi we-cellulose:

I-Crystallinity: Isakhiwo se-crystalline se-cellulose sithinta kakhulu izakhiwo zayo zokumunca amanzi. Izifunda zeCrystalline zibonisa ukumuncwa kwamanzi okuphansi uma kuqhathaniswa nezifunda ezine-amorphous ngenxa yokufinyelela okukhawulelwe kuma-molecule amanzi.

Indawo engaphezulu: Indawo engaphezulu yemicu ye-cellulose idlala indima ebalulekile ekumunceni kwamanzi. I-cellulose ehlukaniswe kahle enendawo ephakeme kakhulu ijwayele ukumunca amanzi amaningi uma iqhathaniswa nezakhiwo ze-cellulose ezinobuningi.

I-Hydrophilicity: Amaqembu e-Hydroxyl (-OH) akhona kuma-molecule e-cellulose awenza abe yi-hydrophilic, enza kube lula ukumuncwa kwamanzi nge-hydrogen bonding.

I-Degree of Polymerization: I-Cellulose enezinga eliphakeme le-polymerization ivame ukuba namandla aphezulu okumunca amanzi ngenxa yokuba khona kwamaqembu e-hydroxyl engeziwe ngeyunithi ngayinye yesisindo.

Izinga lokushisa Nokuswakama Okuhlobene: Izimo zemvelo ezifana nezinga lokushisa kanye nomswakama ohlobene zithonya kakhulu indlela i-cellulose emunca ngayo amanzi. Amazinga okushisa aphezulu kanye namazinga omswakamo ngokuvamile athuthukisa ukumuncwa kwamanzi ngenxa yokwanda kokuhamba kwama-molecule amanzi.

Izindlela zokwenziwa komlingisi:

Amasu ahlukahlukene asetshenziswa ukukhombisa izakhiwo zokumuncwa kwamanzi kwe-cellulose:

Ukuhlaziywa kweGravimetric: Izindlela ze-Gravimetric zibandakanya ukulinganisa ukuzuza kwesisindo samasampuli e-cellulose lapho echayeka emanzini ngokuhamba kwesikhathi. Lokhu kunikeza idatha yobuningi be-kinetics yokumuncwa kwamanzi kanye nokuqukethwe komswakama okulinganayo.

I-Fourier Transform Infrared Spectroscopy (FTIR): I-spectroscopy ye-FTIR isetshenziselwa ukuhlaziya izinguquko emaqenjini asebenzayo e-cellulose lapho emuncwa amanzi. Ukushintsha ezindaweni eziphakeme kanye nokuqina kubonisa ukusebenzisana phakathi kwe-cellulose nama-molecule amanzi.

I-X-ray Diffraction (XRD): I-XRD isetshenziswa ukuhlola izinguquko kucrystallinity ye-cellulose ngemva kokumuncwa kwamanzi. Ukuncipha kwenkomba ye-crystallinity kuphakamisa ukuvuvukala kwemicu ye-cellulose ngenxa yokumuncwa kwamanzi.

I-Scanning Electron Microscopy (SEM): I-SEM ivumela ukubonwa kwezinguquko ze-morphological ku-cellulose fibers ngaphambi nangemva kokumuncwa kwamanzi. Inikeza imininingwane ngobuqotho besakhiwo kanye ne-porosity yezinto ze-cellulose.

Ukusetshenziswa kweCellulose njengeHygroscopic Material:

Imvelo ye-hygroscopic ye-cellulose ithola ukusetshenziswa okuhlukahlukene ezimbonini ezihlukahlukene:

Izindwangu: Izintambo ezisekelwe ku-cellulose ezifana nekotini ne-rayon zisetshenziswa kakhulu ekukhiqizeni izindwangu ngenxa yokukwazi ukumunca umswakama, ukunikeza ukunethezeka nokuphefumula kwezingubo.

Ukwenza Amaphepha: Imicu yeCellulose isebenza njengezinto ezingavuthiwe eziyinhloko ekukhiqizeni iphepha. Izici zabo zokumunca amanzi zithonya ikhwalithi yephepha, ukuphrinta, namandla.

Imboni Yokudla: Okuphuma ku-cellulose njenge-methylcellulose ne-carboxymethylcellulose asetshenziswa njengama-thiening agents, ama-stabilizer, nama-emulsifiers emikhiqizweni yokudla. Umthamo wabo wokumunca amanzi uthuthukisa ukuthungwa nokuzinza kwempilo yeshelufu.

Imithi: Izithako ezisekelwe ku-cellulose zivame ukusetshenziswa ekwenziweni kwemithi ukuze zikwazi ukulawula ukukhishwa kwezidakamizwa, ukuthuthukisa ukuzinza, kanye nokuthuthukisa i-bioavailability. Ziphinde zisize ekuhlakazeni nasekuhlakazweni kwamaphilisi namaphilisi.

I-Biomaterials: Ama-cellulose hydrogels namafilimu avela njengama-biomaterials athembisayo okusetshenziswa okuhlukahlukene kwe-biomedical, okuhlanganisa ukulethwa kwezidakamizwa, ubunjiniyela bezicubu, kanye nokuphulukiswa kwamanxeba. Umthamo wabo ophezulu wokumunca amanzi uvumela ukugeleza kwamanzi okusebenzayo kanye nokwanda kwamaseli.

Ikhono elimangalisayo le-cellulose lokumunca amanzi libangelwa izici zayo eziyingqayizivele zesakhiwo namakhemikhali. Ukuqonda izici ezithonya ukumuncwa kwamanzi, izindlela zokulinganisa, kanye nokusetshenziswa kwe-cellulose njengento ye-hygroscopic kubalulekile ekuthuthukiseni ukusetshenziswa kwayo ezimbonini ezihlukahlukene. Ucwaningo oluqhubekayo kulo mkhakha luzophinde lwandise ububanzi bezinhlelo zokusebenza futhi lufake isandla ekwakhiweni kwezinto ezisimeme ezinezakhiwo zokusebenza ezithuthukisiwe.