Ukuvuselelwa kwe-hydroxyethyl cellulose

Ukucibishelwa kweIHydroxYethyl Cellulose(I-HEC) ifaka ukucubungula impahla evuthiwe ukuze ithuthukise ubumsulwa bayo, ukuvumelana, kanye nezindawo zohlelo oluthile. Nasi isibukezo senqubo yokuhlaziywa kwe-HEC:

1. Ukukhethwa kwezinto ezibonakalayo:

Inqubo yokuhlaziywa iqala ngokukhethwa kwesendlalelo esezingeni eliphakeme njengento eluhlaza. I-cellulose ingathathwa emithonjeni ehlukahlukene, efana ne-solip yokhuni, ama-cotton linter, noma ezinye izinto ezenzelwe izitshalo.

2. Ukuhlanza:

Izinto ezivuthayo ze-cellulose zihlanzwa ukuze zisuse ukungcola okufana ne-lignin, i-hemishellulose, nezinye izinto ezingezona ze-cellulosic. Le nqubo yokuhlanza imvamisa ibandakanya ukugeza, ukuxubha, kanye nokwelashwa kwamakhemikhali ukuthuthukisa ubumsulwa be-cellulose.

3. Ukuthethelela:

Ngemuva kokuhlanzwa, i-cellulose iguqulwa ngamakhemikhali ngokuthezeka ukwethula amaqembu we-hydroxyethyl ku-cellulose backbone, okuholela ekwakhekeni kwe-hydroxyethyl cellulose (i-HEC). Ukuphendula okuthe xaxa kuhilela ukusetshenziswa kwe-alkali metal hydroxides ne-ethylene oxide noma i-ethylene chlorohydrin.

4. Ukungathathi hlangothi nokugeza:

Ngemuva kokulandela ukusheshisa, ingxube yokuphendula ayithathi hlangothi ukususa i-alkali eyeqile futhi ulungise i-pH. Umkhiqizo ongathathi hlangothi bese ugezwa kahle ukuze ususe amakhemikhali asele kanye nemikhiqizo evela ekuphenduleni.

I-5

Isixazululo se-hec esibukhali sihlungiwe ukususa noma yiziphi izinhlayiya eziqinile noma ukungcola. Ngemuva kokuhlunga, isixazululo se-HEC singase sigxile, uma kunesidingo, bese somile ukuthola indlela yokugcina eyimpuphu noma ye-hec.

6. Ukulawulwa kwekhwalithi:

Kuyo yonke inqubo yokuhlanjululwa, izindlela zokulawula ikhwalithi ziyasetshenziswa ukuqinisekisa ukuvumelana, ubumsulwa, kanye nokwenza umsebenzi we-HEC. Ukuhlolwa kokulawulwa kwekhwalithi kungafaka isilinganiso sokuvunywa, ukuhlaziya isisindo moleecular, ukuzimisela okuqukethwe komswakama, nokunye ukuhlaziya ngokomzimba nangamakhemikhali.

7. Ukupakishwa nokugcinwa:

Uma kuhlanjululwe, umkhiqizo we-HEC uhlanganiswe ezitsheni ezifanele noma ezikhwameni zokugcina nokuhamba. Ukupakishwa okufanele kusiza ukuvikela i-hec ekungcolisweni, umswakama, nakwezinye izinto ezemvelo ezingathinta ikhwalithi yazo.

Izicelo:

I-Hydroxyyethylllls (HEC) ithola izinhlelo eziningi ezisetshenziselwa izimboni ezahlukahlukene, kufaka phakathi:

• Ukwakhiwa: Kusetshenziswe njengesikhudlwana, i-Rheology modifier, kanye ne-ejenti yokugcinwa kwamanzi emikhiqizweni esekwe kuthusi, upende, ukumboza kanye nokunamathela.
• Ukunakekelwa komuntu siqu kanye nezimonyo: kusetshenziswe njengesikhudlwana, i-stabilizer, kanye nefilimu yangaphambili e-lotion, okhilimu, ama-shampoos kanye neminye imikhiqizo yokunakekelwa komuntu.
• Izemithi: Isetshenziswa njenge-binder, ukuqhelelana ne-ejenti yokukhishwa kwamathebulethi emithi yezemithi, amaphilisi kanye nokumiswa komlomo.
• Ukudla: Kuqashwe njengomuntu omkhulu, emulsifier, kanye ne-stabilizer emikhiqizweni yokudla efana nososo, ukugqoka kanye nemikhiqizo yobisi.

Isiphetho:

Ukucibishelwa kweHydroxYethyl celtulose (HEC) kubandakanya izinyathelo eziningana zokuhlanza nokuguqula impahla eluhlaza okwesibhakabhaka, okuholele endaweni ehlukahlukene kanye ne-polymer ehlukahlukene ngezinhlobonhlobo zezicelo ezifana nokwakha, ukunakekelwa kwemithi kanye nokudla. Inqubo yokuhlaziywa iqinisekisa ukungaguquguquki, ukuhlanzeka, kanye nekhwalithi yomkhiqizo we-HEC, okwenza ukusetshenziswa kwayo kumikhiqizo ehlukahlukene nemikhiqizo.