Ho hlahisa hydroxethyl cellulouse Hec e sebelisoa haholo indastering ea bohlokoa, ho kenyelletsa meralo, litlolo, lijo le tsona, thepa ea eona e bolokang metsi, e tsitsitseng le ea metsi.
Selelekela ho Hydroxethyl cellulosese (Hec)
Hydroxethyl celdlosese (Hec) ke motho ea se nang ionic, ea nang le metsi a qhibilihang ea tsoang leleng oa selefounu. E sebelisoa haholo e le ho toba, e le lerone le ho tsitsisa indastering ea litaba tse fapaneng.
Lisebelisoa tse so fetoloe
Cllouddoudd: Lintho tsa mantlha tsa tlhahiso ea Hec. Conteluwale e ka ba meride ka linthong tse fapaneng tse thehiloeng sethaleng tse kang pulp ea lehong, k'hothone kapa masala a temo.
E Ethylene oxide
Alkali: hangata sodium hydroxide (naoh) kapa potasiamo hydroxide (Koh) e sebelisoa e le sitalyst ka karabelo.
Ts'ebetso ea Tlhahiso
Ho hlahisoa ha a HC ho kenyelletsa hore Etherdight Of Bellene Oxide ea axide tlasa maemo a alkaline.
Mehato e latelang ea ho botsa tšebetso:
1. Phekolo ea pele ea cellulose
Clloulose e hloekisitsoe ho tlosa litšila tse kang Lignin, Hemicellilolose le Li-Net. Cellulose e hloekisitsoeng e atisa ho omella ho tse tobileng mongobo o itseng.
2. Boitšoaro bo botle
Ho itokisetsa tharollo ea alkaline: Tharollo ea Aquasy ea Sodium Hydroxide (Naoh) kapa potasiamo hydroxide (Koh) e lokiselitsoe. Khatello ea tharollo ea alkali e bohlokoa ebile e hloka ho ntlafatsoa ho latela tekanyo e lakatsehang (DS) ea sehlahisoa sa ho qetela.
Sethala sa Rection: Cellulose e Hloekileng e hasana ka Tharollo ea Alkali. Motsoako ona o timelitsoe ka mocheso o itseng, hangata ho ema ho 50-70 ° C, ho netefatsa hore cellulosa e ruruha ebile e fumaneha bakeng sa karabelo.
Kenyelletso ea ethylene oxide. Ethylene oxide (EO) Karabelo ke ho felisoa ha mocheso, ho feta tekano ho bohlokoa ho thibela ho phefumoloha.
Report ea karabelo: Tsoelo-pele ea karabelo e shebelloa ke ho sekaseka sampole ka linako tse tloaelehileng. Mekhoa e kang e mene e mene e nang le pherekano e nang le spectraroscopy (FURR
Ho se nke lehlakore le ho hlapa: Hang ha DS e lakatsehang e fumaneha ka ho se nyenyefatse tharollo ea alkaline, ka tloaelo acid. O ile a hlatsuoa a hlatsuoa a hlatsuoa ka botlalo ka metsi ho tlosa bahoeki kapa litšila.
3. Ho hloekisoa le ho omella
Ho hlatsoa hec ho hloekisoa hape ka ho fetoha ha filetch kapa ho tsuba ho tlosa litšila tse setseng. Hec e hloekisitsoeng e omisitsoe ke litaba tse itseng tsa mongobo ho fumana sehlahisoa sa ho qetela.
Taolo ea Boleng
Taolo ea boleng e bohlokoa ho pholletsa le ts'ebetso ea tlhahiso ea Hec ho netefatsa hore ho na le bothata le bohloeki ba sehlahisoa sa ho qetela. Liraka tsa Bohlokoa ho Sefate:
Degree of Singlution (DS)
Viscosity
Litaba tsa mongobo
pH
Bohloeki (ho ba sieo ha litšila)
Mekhoa ea Tlhahlobo e joalo ka FTRR, litekanyo tsa pono, le tlhahlobo ea mantlha li sebelisoa hangata bakeng sa taolo ea boleng.
Likopo tsa Hydroxethyl celdoulose (Hec)
Hec o fumana lits'ebetso indastering e fapaneng ka lebaka la thepa ea eona e fapana:
Meriana: E sebelisoa e le moemeli ea toaneng ea ho emisa ka molomo, ho lokolloa ha litsamaiso tsa lithethefatsi tse rekisoang haholo.
Li-cosmetics: tse neng li sebelisoa ka lisele, litlolo le shampoos joalo ka thipa ebile e le tsietsing.
Lijo: E kenyellelitsoe ho Lihlahisoa tsa Lijo e le moemeli ea toroang le ea gelling Agent, Emolifier le Stabilizer.
Kaho: e sebelisoang malapeng a sebelisitsoeng le ho fa matla ho ntlafatsa ho ikoetlisa le ho boloka metsi.
Mehopolo ea tikoloho le ea polokeho
Tšusumetso ea tikoloho: tlhahiso ea Hec e kenyelletsa ts'ebeliso ea lik'hemik'hale tse kang Edylene le alkalis, e ka bang le litlamorao tse se bolelang tikoloho. Tsamaiso e nepahetseng ea litšila le ho khomarela melao ke ea bohlokoa ho fokotsa tšusumetso ea tikoloho.
Tšireletseho: E Ergelene Oxide ke khase e sebetsang haholo, e nang le likotsi tsa polokeho nakong ea ho sebetsana le ho boloka. Moea o lekaneng, lisebelisoa tsa ts'ireletso tsa motho (ppe), le li-protocol tsa polokeho li hlokahala ho netefatsa polokeho ea mohlokomeli.
Hydroxethyl cellulosese (Hec) ke polymer ea bohlokoa e nang le lits'ebeletso tse fapaneng tsa litoropong ho tloha ho li-pharing ho tloha Pharmatications ho ea kalong. Ho hlahisoa ha eona ho kenyelletsa semelo sa cellulose le axide ea ethylene oxide tlasa maemo a alkaline. Mehato ea taolo ea boleng bo bohlokoa ho netefatsa ho tsitsa le ho hloeka ha sehlahisoa sa ho qetela. Mehopolo ea tikoloho le ea polokeho e tlameha ho sebetsanoa ho pholletsa le ts'ebetso ea tlhahiso. Ka ho latela mekhoa e nepahetseng le protocol, hec e ka hlahisoa ka katleho ha e nyenyefatsa tšusumetso ea tikoloho le ho netefatsa polokeho ea mongathi.
Tataiso ena e felletseng e akaretsa mokhoa oa tlhahiso ea hydroxethyl celdoulose (Hec)
Nako ea poso: AP-10-2024