Yini i-cellulose ethers esetshenziswayo esetshenziswa kukho ngokhonkolo?

I-Cellulose Afers idlala indima ebalulekile emkhakheni wezokwakha, ikakhulukazi ezinhlalulweni zikakhonkolo. Lezi zengezo zithuthukisa ukusebenza nezimpawu zikakhonkolo, zihlinzeka ngezinzuzo ezinjengokusebenza okuthuthukile, ukugcinwa kwamanzi kanye nokunamathelisa. Phakathi kwezinhlobo ezahlukahlukene ze-cellulose ashers, ezinye zivame ukusetshenziswa ezakhiweni zokhonkolo.

1.hydroxyyethylmethylcelcelcellellellulose (hemc):

I-Hydroxyyethyl methylcellulose, eyaziwa ngokuthi i-hemc, iyi-cellulose etherble ether esetshenziswa kabanzi embonini yezokwakha. Itholakala ngokuguqulwa kwamakhemikhali kwe-cellulose. IHemc yaziwa ngezakhiwo zayo zokugcina amanzi ezinhle kakhulu, okwenza kube yisengezo esisebenzayo ekuxubeni kokhonkolo. Kuyasiza ukuvimbela ukomiswa kwangaphambi kokhonkolo, kuqinisekiswe ukusebenziseka okungcono nokuqeda.

Ngaphezu kwalokho, i-hemc isebenza njengomkhulu, yandisa ukubonwa kokuhlanganiswa kokhonkolo. Le mpahla inenzuzo ikakhulukazi kuzinhlelo zokusebenza mpo, njengokuphamba kanye nokunikezwa, lapho kudingeka khona ukuthambekisela okuthuthukile kanye nokuncishiswa kwe-sagging.

2.hydroxypypropylmetylcelcelcellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellellose (HPMC):

I-Hydroxypropyl Methylcellulose (HPMC) ingenye esetshenziswe kabanzi ether ether ekhonkolo. Njenge-hemc, i-HPMC iyi-polymer esolulekayo enamanzi etholakala ku-cellulose. Inikeza inqwaba yezinzuzo kufaka phakathi ukugcinwa kwamanzi okuthuthukile, ukusebenziseka kanye nokunamathelisa.

Kuhlelo lokusebenza lwekhonkrithi, i-HPMC isebenza njengokushintsha kwe-Rheology, okuthinta izici zokugeleza nezimo zezinkinga zenhlanganisela. Lokhu kubaluleke kakhulu kuma-maleveling wolveling and dow-coat wodumo. Ngokwengeziwe, i-HPMC isiza ukuthuthukisa ukunamathela kwengxube, ngaleyo ndlela sandisa amandla nokuqina kokhonkolo olapha.

3. I-methyl cellulose (MC):

I-methylcellulose (MC) iyi-cellulose ether etholakala ku-cellulose yemvelo ngochungechunge lwezinqubo zamakhemikhali. Ibonakala ngamanzi e-solubility kanye nezakhiwo ezenziwe ngefilimu. Kuhlelo lokusebenza lukakhonkolo, i-MC ivame ukusetshenziswa njenge-reathener kanye ne-ejenti yokugcina amanzi.

I-MC ivimbela ukuhlukaniswa ngempumelelo kanye nokopha ekuxubeni ukhonkolo futhi kuqinisekisa ngisho nokusatshalaliswa kwezinhlanganisela. Izakhiwo zayo ezakha amafilimu nazo zithuthukisa ukunamathela kuzinhlobonhlobo ezahlukahlukene. Ngokwengeziwe, i-MC yaziwa ngokuhambisana kwayo nezinye izinto zokwakha, okwenza kube yisengezo eguquguqukayo ekunikezelweni kokhonkolo.

4. I-Carboxymethylcellellulose (CMC):

I-Carboxymethylcelcelcellellulose (CMC) iyi-cellulose ether enamaqembu e-carboxymethyl anamathiselwe kwi-cellulose backbone. Ngenkathi i-CMC ingasetshenziswa kaningi ngokhonkolo njengezinye izivumelwano ze-cellulose, ingathola izinhlelo zokusebenza ezimweni ezithile.

Ngokhonkolo, i-CMC isetshenziselwa ukugcinwa kwayo kwamanzi kanye nokuqina kwezakhiwo. Kuyasiza ukuthuthukisa ukubumbana kwengxube futhi kunciphise ukulahleka komswakama ngesikhathi sokuhlelwa. I-CMC ivame ukusetshenziselwa ukwakheka kokhonkolo okhethekile, njengaleyo esetshenzisiwe kwizicelo ezibonakalayo.

5.Ethylydroxyethylcellellose (Ehec):

I-Ethyl Hydroxyyethyl cellulose, eyaziwa ngokuthi i-Ehec, iyi-ether ye-cellulose enenhlanganisela ye-ethyl kanye ne-hydroxyethyls subveloents. Ibaluleke kakhulu ekuguquguqukeni kwayo ezinhlobonhlobo zezicelo, kufaka phakathi ukwakhiwa.

Ngokhonkolo, i-Ehec isebenza njenge-ejenti yokugcina amanzi, iqinisekisa ukuthi le ngxube ihlala isebenza isikhathi eside. Kuyasiza nokuthuthukisa amandla e-bond futhi kunciphise amathuba okuqhekeka. I-EHEC isetshenziswa kakhulu kuma-tile anamathela, zodaka kanye neminye imikhiqizo eyenzekile.

I-Cellulose Afers idlala indima ebalulekile ekwenzeni ngcono ukusebenza kokhonkolo kwezicelo zokwakha. I-cellulose esetshenziswa ngokujwayelekile, njenge-hemc, i-HPMC, i-MC, i-CMC ne-EHEC, inikezela ngezindlela ezahlukahlukene kufaka phakathi ukusebenza okuthuthukisiwe, ukugcinwa kwamanzi, ukunamathela nokuqina kokhonkolo okhonjiwe. Ukuqonda izakhiwo ezithile ze-ether ngayinye ye-cellulose zingasetshenziswa ngempumelelo ezakhiweni zokhonkolo ezahlukahlukene ukuze zihlangabezane nezidingo ezihlukile zemboni yezokwakha.