Eyona Cellulose ethers
I-cellulose ethers yintsapho yeepolymers ezinyibilikayo zamanzi ezivela kwi-cellulose, i-polymer eyenzeka ngokwemvelo efumaneka kwiindonga zeeseli zezityalo. Ezi ziphuma kwiipolymers ze-cellulose eziguqulwe ngamakhemikhali kunye namaqela ahlukeneyo asebenzayo, anikezela iimpawu ezithile kwii-molecule. I-cellulose ethers isetyenziswa ngokubanzi kumashishini ahlukeneyo ngenxa yokuguquguquka kwawo, kuquka ukwakhiwa, amayeza, ukutya, izimonyo kunye nokunye.
Ukumisela i-"engcono" ye-cellulose ether kuxhomekeke kwiimfuno ezithile zesicelo esijoliswe kuyo. Ii-ether ze-cellulose ezahlukeneyo zibonisa iipropati ezahlukeneyo, ezifana ne-viscosity, ukunyibilika, kunye nokukwazi ukwenza ifilimu, ezenza zilungele iinjongo ezahlukileyo. Nazi ezinye ze-cellulose ethers ezisetyenziswa ngokuqhelekileyo kwaye zijongwa kakuhle:
- I-Methyl Cellulose (MC):
- Iipropati: I-MC iyaziwa ngomthamo wayo ophezulu wokugcina amanzi, okwenza ukuba ifaneleke ukusetyenziswa kwizicelo ezityebileyo, ngakumbi kushishino lokwakha. Ikwasetyenziselwa amayeza kunye neemveliso zokutya.
- Ukusetyenziswa: Ukwakhiwa kodaka kunye nesamente, iipilisi zamachiza, kunye ne-agent agent kwimveliso yokutya.
- I-Hydroxyethyl Cellulose (HEC):
- Iipropati: I-HEC ibonelela ngokunyibilika kakuhle kwamanzi kwaye iguquguquka ngokwemigaqo yolawulo lwe-viscosity. Ihlala isetyenziswa kwiimveliso zombini kunye nabathengi.
- Izicelo: Ipeyinti kunye neengubo, iimveliso zokunakekelwa komntu (i-shampoos, i-lotions), i-adhesives, kunye ne-pharmaceutical formulations.
- I-Carboxymethyl Cellulose (CMC):
- Iipropati: I-CMC iyanyibilika emanzini kwaye ineempawu ezibalaseleyo zokujiya kunye nokuzinzisa. Isetyenziswa kakhulu kumashishini okutya kunye namayeza.
- Usetyenziso: Iimveliso zokutya (njengezinto ezityebisayo nezizinzisayo), amayeza, izinto zokuthambisa, amalaphu, kunye nolwelo lokomba kwishishini leoli negesi.
- I-Hydroxypropyl Methyl Cellulose (HPMC):
- Iipropati: I-HPMC ibonelela ngolungelelwano olulungileyo lokunyibilika kwamanzi, i-thermal gelation, kunye neempawu zokwenza ifilim. Isetyenziswa ngokubanzi kwizicelo zokwakha kunye namayeza.
- Ukusetyenziswa: I-adhesives ye-tile, i-samente-based renders, i-pharmaceutical formulations ngomlomo, kunye neenkqubo zokuhanjiswa kweziyobisi ezilawulwayo.
- I-Ethyl Hydroxyethyl Cellulose (EHEC):
- Iipropati: I-EHEC yaziwa ngokuba yi-viscosity ephezulu kunye nokugcinwa kwamanzi, okwenza ukuba ifanelekele izicelo ezifunwayo kulwakhiwo kunye namayeza.
- Ukusetyenziswa: Izongezo zodaka, ii-agent ezityebisayo kumayeza, nakwizithambiso.
- I-Sodium Carboxymethyl Cellulose (Na-CMC):
- Iipropati: I-Na-CMC yi-ether eselulosi enyibilikayo emanzini eneempawu ezigqwesileyo zokujiya kunye nokuzinzisa. Ihlala isetyenziselwa ukutya kunye nezicelo ezahlukeneyo zamashishini.
- Usetyenziso: Iimveliso zokutya (njengento etyebisayo kunye nezinzisi), amayeza, amalaphu, kunye nolwelo lokomba.
- ISelulosi yeMicrocrystalline (MCC):
- Iipropati: I-MCC iqulathe amasuntswana amancinci, ayikristale kwaye iqhele ukusetyenziswa njengesibophelelo kunye nesigcwalisi kwiipilisi zoxubo mayeza.
- Ukusetyenziswa: Iipilisi zeMichiza kunye neepilisi.
- I-Sodium Carboxymethyl Starch (CMS):
- Iipropati: I-CMS sisitatshi esiphuma kwiipropati ezifana ne-Na-CMC. Isetyenziswa ngokuqhelekileyo kwishishini lokutya.
- Usetyenziso: Iimveliso zokutya (njengento etyebisayo kunye nezinzisi), amalaphu, kunye namayeza.
Xa ukhetha i-ether yeselulosi kwisicelo esithile, kubalulekile ukuqwalasela imiba efana ne-viscosity efunekayo, ukunyibilika, ukuzinza, kunye nezinye iimpawu zokusebenza. Ukongeza, ukuthotyelwa kwemigangatho yolawulo kunye nokuqwalaselwa kokusingqongileyo kufuneka kuthathelwe ingqalelo. Abavelisi bahlala bebonelela ngeedatha zedatha yobugcisa ngolwazi oluthe kratya kwiipropati kunye nokusetyenziswa okucetyiswayo kwee-ethers ze-cellulose ezithile.
Ixesha lokuposa: Jan-03-2024