Hydroxyethylcellulose (HEC) ke polymer e sebelisoang haholo liindastering tse fapaneng, ho kenyeletsoa litlolo, meriana le lijo. Ke motsoako oa selulose o fetotsoeng oo haholo-holo o tsoang ho cellulose ea tlhaho, polysaccharide e fumanehang maboteng a lisele tsa limela. Motsoako ona o feto-fetohang o entsoe ka ts'ebetso ea phetoho ea lik'hemik'hale e kenyelletsang ho arabela selulose ka ethylene oxide ho hlahisa lihlopha tsa hydroxyethyl mokokotlong oa cellulose. Hydroxyethylcellulose e hlahisoang e na le thepa e ikhethang ea rheological, e etsang hore e be ea bohlokoa mefuteng e mengata ea ts'ebeliso.
Cellulose, mohloli oa mantlha oa hydroxyethylcellulose, e ngata ka tlhaho mme e ka fumanoa mehloling e fapaneng ea limela. Mehloli e tloaelehileng ea selulose e kenyelletsa makhasi a lehong, k'hothone, hemp, le limela tse ling tse nang le fiber. Ho ntšoa ha selulose hangata ho kenyelletsa ho pshatla semela ka mekhoa ea mochini kapa ea lik'hemik'hale ho arola likhoele tsa cellulose. Hang ha e arotsoe, cellulose e tsoela pele ho sebetsa ho tlosa litšila le ho e lokisetsa bakeng sa phetoho ea lik'hemik'hale.
Tšimoloho ea hydroxyethylcellulose e kenyelletsa karabelo ea selulose ka ethylene oxide tlas'a maemo a laoloang. Ethylene oxide ke motsoako oa manyolo o nang le foromo ea lik'hemik'hale C2H4O, e atisang ho sebelisoa ha ho etsoa lik'hemik'hale tse sa tšoaneng tsa indasteri. Ha e arabela ka selulose, ethylene oxide e eketsa lihlopha tsa hydroxyethyl (-OHCH2CH2) mokokotlong oa cellulose, e leng se etsang hore ho thehoe hydroxyethylcellulose. Tekanyo ea ho kenya sebaka, e bolelang palo ea lihlopha tsa hydroxyethyl tse kentsoeng yuniti ea tsoekere ka har'a ketane ea cellulose, e ka laoloa nakong ea ts'ebetso ea ho kopanya ho lokisa thepa ea sehlahisoa sa ho qetela.
Phetoho ea lik'hemik'hale ea selulose ho hlahisa hydroxyethylcellulose e fana ka lisebelisoa tse 'maloa tse molemo ho polymer. Lintho tsena li kenyelletsa ho eketsa ho qhibiliha ha metsi, matla a ntlafetseng a ho teteka le a gelling, botsitso bo ntlafetseng holim'a mefuta e mengata ea pH le maemo a mocheso, le ho lumellana le mefuta e meng e mengata e atisang ho sebelisoa ha ho etsoa. Litšobotsi tsena li etsa hore hydroxyethylcellulose e be tlatsetso e fapaneng e nang le lits'ebetso tse ngata liindastering tse fapaneng.
Indastering ea litlolo, hydroxyethylcellulose e sebelisoa haholo joalo ka ntho e tenya, stabilizer le emulsifier lihlahisoa tse fapaneng tsa tlhokomelo ea motho joalo ka li-shampoo, li-conditioner, lotions, litlolo le li-gel. Bokhoni ba eona ba ho fetola viscosity le sebopeho sa libopeho li lumella ho theha lihlahisoa tse nang le litšobotsi tse lakatsehang tsa kutlo le litšobotsi tsa ts'ebetso. Ho phaella moo, hydroxyethylcellulose e ka sebetsa e le moemeli oa ho etsa filimi, e fana ka tšireletso e sireletsang letlalong kapa holim'a moriri.
Meetsong ea meriana, hydroxyethylcellulose e sebelisoa e le tlamahano ha ho etsoa matlapa, moo e thusang ho kopanya metsoako e sebetsang hammoho le ho ntlafatsa matla a mochini a matlapa. E boetse e sebelisoa e le moemeli oa ho emisa lintho tse entsoeng ka metsi ho thibela ho lokisoa ha likaroloana tse tiileng le ho etsa bonnete ba kabo e tšoanang ea metsoako e sebetsang. Ho feta moo, hydroxyethylcellulose e sebetsa e le mofetoleli oa viscosity tharollong ea mahlo le li-gels tsa topical, e ntlafatsang thepa ea bona ea ho tlotsa le ho lelefatsa nako ea ho lula sebakeng sa mahlo kapa letlalong.
Indastering ea lijo, hydroxyethylcellulose e fumana lits'ebetso e le setei, stabilizer, le moemeli oa gelling lihlahisoa tse fapaneng tsa lijo, ho kenyeletsoa li-sauces, liaparo, li-dessert le lino. E ka ntlafatsa sebopeho, molomo le botsitso ba sethala sa lijo ntle le ho ama tatso kapa monko oa tsona. Hydroxyethylcellulose ka kakaretso e amoheloa e le e bolokehileng (GRAS) bakeng sa ho sebelisoa lijong ke balaoli ba taolo joalo ka US Food and Drug Administration (FDA) le European Food Safety Authority (EFSA).
hydroxyethylcellulose ke motsoako oa bohlokoa oa selulose o nkiloeng mehloling ea tlhaho ea cellulose ka phetoho ea lik'hemik'hale ka ethylene oxide. Thepa ea eona e ikhethang ea rheological e etsa hore e be tlatsetso e fapaneng ho litlolo, meriana le lihlahisoa tsa lijo, moo e sebetsang e le setei, stabilizer, binder, emulsifier le gelling agent. Ka mefuta e mengata ea likopo le boemo bo botle ba polokeho, hydroxyethylcellulose e ntse e tsoela pele ho ba motsoako oa bohlokoa mekhoeng e fapaneng ea bareki le ea indasteri.
Nako ea poso: Apr-12-2024