IHydroxye ether (HEC) iyi-polymer engeyona i-ionic yamanzi -encibilikayo etholakala ku-cellulose.Imvamisa isetshenziswa ezimbonini ezahlukahlukene, njengemithi, izimonyo nokudla, njengama-thickening kanye nama-gel agents.Ukuxazulula i-HEC kuyinqubo eqondile, kodwa idinga ukucabangela izici ezifana nezinga lokushisa, i-pH nokushukumisa.
Iphrofayili ye-Hec:
IHydroxye ethyl cellulose (HEC) iphuma ku-cellulose ehlanganiswa ngokusabela nge-oxide.Ukusabela kwethula iqembu le-hydroxyl ochungechungeni oluyinhloko lwe-cellulose, ngaleyo ndlela inikeze i-polymer ekuncibilikeni kwamanzi.I-HEC ibonakala ngokukwazi ukwenza i-gel esobala futhi ezinzile kwisixazululo se-aquare, okwenza kube ingxenye esebenza ngezinto eziningi phakathi kwezicelo eziningi.
Izinto ezithinta ukuqedwa kwe-HEC:
1. Izinga lokushisa:
Izinga lokushisa elincikile le-HEC.Izinga lokushisa eliphakeme livame ukuholela ekuqedweni ngokushesha.
Amanzi afudumele ngokuvamile asetshenziselwa ukukhuthaza inqubo yokuncibilika.Kodwa-ke, amazinga okushisa aphezulu kufanele agwenywe ukuvimbela ukuwohloka.
2. Izinga le-PH:
I-HEC izinzile phakathi kwebanga le-pH elibanzi, ngokuvamile phakathi kuka-2 no-12. Ukulungisa inani le-pH lesixazululo kungase kuthinte izinga lokuqedwa.
Ukuncibilika okuhle kakhulu kuvame ukukhetha okokuqala ukuba yisimo se-pH ene-alkaline.
3. Hlanganisa:
Govuza noma ukunyakazisa ukuthuthukisa ukuhlakazwa kwe-HEC.Ukuxutshwa okuthambile kusiza i-polymer ngokulinganayo ku-solvent ngokulinganayo ukuvimbela amabhlogo.
Ukunyakazisa ngomshini noma ukusebenzisa ingxube kazibuthe kuvamile endaweni yaselabhorethri.
4. Ukukhetha isincibilikisi:
I-HEC iyancibilika emanzini ukwenza isixazululo esicacile.Ukukhethwa kwekhwalithi yamanzi (i-distillation, i-exfoliating) ingathinta ukuchithwa.
Ukugwema ukungcola kwezincibilikisi kubalulekile ukuze uvimbele noma yikuphi ukusabela okungekuhle.
Indlela yokuqeda i-HEC:
1. Chaza amanzi ashisayo:
Shisisa amanzi ezingeni lokushisa elingaphezu kwezinga lokushisa legumbi, kodwa libe ngaphansi kwezinga lokushisa lokuwohloka le-HEC.
Gqugquzela njalo i-HEC kancane kancane wengeze emanzini ukuvimbela amabhlogo.
Gcina izinga lokushisa kuze kube yilapho liqedwa ngokuphelele.
2. Amanzi abandayo ayancibilika:
Nakuba ihamba kancane kunamanzi ashisayo, amanzi abandayo asengahlakaza ngempumelelo i-HEC.
Kancane kancane engeza i-HEC emanzini abandayo bese uxuba ingxube.
Hlanganisa futhi uchithe isikhathi esanele sama-polymers.
3. Ukulungiswa kwe-PH:
Ngokwesicelo, i-pH yamanzi isetshenziselwa ukulungisa i-pH yamanzi ezingeni elidingekayo.
Gada izinguquko zevelu ye-pH ngesikhathi sokuhlakazeka ukuze uqinisekise ukuzinza.
4. Ubuchwepheshe bokuqinisa:
Sebenzisa ukunyakazisa komshini, ukunyakazisa kazibuthe, noma ukuxuba okuncane nezinye izinhlobo ukuze usize i-HEC ihlakaze.
Qhubeka ugqugquzela kuze kube yilapho ikhambi selilingana.
5. Inhlanganisela yendlela:
Inhlanganisela yokushisa, ukulungiswa kwe-pH kanye nokunyakazisa kusetshenziswa ukwenza ngcono ukuhlakazeka.
Amapharamitha ahlukene okuhlolwa ukuze kuzuzwe izinga lokuqedwa elidingekayo.
ukuxazulula inkinga:
1. Ukuvimba:
Uma vimba kwenzeka, sicela unciphise ukwanda kwe-solvent futhi ukwandise ukugqugquzela kwe-HEC.
Bolisa ngokwenza noma iyiphi ibhulokhi yeqembu esunguliwe, noma lungisa isivinini esinyakazayo.
2. Ukuchithwa okunganele:
Uma i-polymer ingaqedwa ngokuphelele, hlola ukungcola ku-solvent noma ukugoqa okunganele.
Cabangela ukulungisa izinga lokushisa noma ukusebenzisa izindlela ezihlukene zokuncibilika.
Ukuxazulula i-HEC kuhilela izici ezihlukahlukene, okuhlanganisa izinga lokushisa, i-pH, nokunyakazisa.Ukuqonda izici ze-HEC kanye nezidingo ezithile zezicelo kubalulekile ukuze kuzuzwe ukuhlakazwa okungcono kakhulu.Ukuhlolwa kokuhlola nokuqapha ngokucophelela kuzosiza ukuxazulula izinkinga ezingaba khona.Ngaso sonke isikhathi landela inkomba yezokuphepha futhi uthintane nethebula ledatha yezobuchwepheshe ukuze uthole imiyalelo ethile enikezwe umenzi.
Isikhathi sokuthumela: Dec-25-2023