Ukwakhiwa kwejeli ye-Hydroxyethyl cellulose

I-Hydroxyethyl cellulose (HEC) iyi-polymer engancibiliki emanzini engeyona i-ionic esetshenziswa kakhulu ezimbonini ezahlukahlukene ngenxa yokujiya kwayo, ukubopha, nokusimamisa.Ikakhulukazi, i-HEC ivame ukusetshenziswa ekwakhiweni kwama-gel, okuyizinto eziqinile noma eziqinile ezinokuqina okufana ne-jelly futhi ezikwazi ukubamba inani elikhulu loketshezi.Kulesi sihloko, sizohlola ukwakhiwa kwejeli ye-hydroxyethyl cellulose kanye nezici ezingathinta izakhiwo zayo.

Ukwakhiwa kwejeli ye-hydroxyethyl cellulose kuhilela izingxenye ezimbalwa ezibalulekile, okuhlanganisa i-HEC, i-solvent, nezinye izithasiselo ezidingekayo.I-solvent eyodwa evamile esetshenziswa ekwenziweni kwejeli ye-HEC ngamanzi, ngokuvamile asetshenziselwa ukuncibilikisa i-HEC polymer futhi kwakhiwe ijeli.Kodwa-ke, ezinye izincibilikisi ezifana ne-glycerin, i-propylene glycol, ne-ethanol nazo zingasetshenziswa ukuguqula izakhiwo zejeli.

Ngaphezu kwe-solvent, izithasiselo ezihlukahlukene zingafakwa ekwakhiweni kwejeli ye-hydroxyethyl cellulose ukulungisa izakhiwo zayo.Isibonelo, ama-preservatives angase afakwe ukuze avimbele ukukhula kwebhaktheriya futhi andise impilo yeshalofu yejeli, kuyilapho ama-surfactants angasetshenziswa ukusiza i-emulsify ijeli futhi ithuthukise ukuhambisana kwayo.Ezinye izithasiselo ezivamile zihlanganisa ama-humectants, asiza ekugcineni umswakama kujeli, nama-colorants noma amakha ukuze kuthuthukiswe ukubukeka kwayo nephunga.

Isici esisodwa esibalulekile okufanele sicatshangelwe ekwakhiweni kwejeli ye-hydroxyethyl cellulose yi-viscosity oyifunayo noma ukushuba komkhiqizo wokugcina.I-viscosity yejeli inqunywa ukugxila kwe-polymer ye-HEC, kanye nesilinganiso se-solvent kuya ku-polymer.Ukugxila okuphezulu kwe-HEC kanye nezilinganiso eziphansi ze-solvent-to-polymer kuzoholela kujeli elijiyile, elibonakalayo.Ukukhethwa kwe-solvent nakho kungathinta i-viscosity yejeli, ngama-solvents athile akhiqiza ama-gel ngokuhambisana okukhulu noma okuncane.

Esinye isici okufanele icatshangelwe ekwakhiweni kwejeli ye-hydroxyethyl cellulose ukucaca kwejeli noma ukufiphala kwayo.Ama-gel we-HEC angahluka kusuka kucacile futhi obala kuya ku-opaque kanye ne-milky, kuye ngokuthi ukwakheka nokwengezwa kwezinye izingxenye.Ukusetshenziswa kwama-solvents athile noma izithasiselo kungase kuthinte ukubonakala kwejeli, futhi amamaki athile e-HEC angase abe opaque kakhulu kuye ngesisindo samangqamuzana kanye nezinga lokushintsha.

Enye inkinga engaba khona ekwakhiweni kwamajeli e-hydroxyethyl cellulose wukuqina kwawo ngokuhamba kwesikhathi.Kwezinye izimo, ama-HEC gels angase athambekele ku-syneresis, okuwukuhlukaniswa kwe-liquid kusuka ku-gel ngenxa yezinguquko zokushisa noma ezinye izici.Ukuze kuxazululwe le nkinga, ama-stabilizers kanye nama-thickeners afana ne-xanthan gum noma i-carrageenan anganezelwa ekwakhiweni ukuze kuthuthukiswe ukuzinza kwejeli nokuvimbela i-syneresis.

Sengiphetha, ukwakhiwa kwejeli ye-hydroxyethyl cellulose kuhilela ukulinganisela ngokucophelela kwezingxenye ezihlukahlukene nezici, kuhlanganise nokukhethwa kwe-solvent, ukugxila kwe-HEC polymer, nokwengezwa kwezithasiselo ezihlukahlukene ukuze kulungiswe izakhiwo zejeli.Ngokulawula ngokucophelela lezi ziguquko, kungenzeka ukudala ijeli ye-hydroxyethyl cellulose ene-viscosity oyifunayo, ukucaca, nokuzinza, engasetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, kusukela emikhiqizweni yokunakekelwa komuntu siqu kuya ezimbotsheni zezimboni kanye nokunamathela.