Hydroxyethyl cellulose (HEC) ke sesebelisoa sa polymer se se nang ionic se qhibilihang ka metsing se sebelisoang haholo ho litlolo, meriana, lipente, liphahlo, kaho le masimong a mang. E na le botenya bo botle haholo, ho emisoa, ho hasana, emulsification, ho etsa lifilimi, ho boloka metsi le thepa e 'ngoe, kahoo e fetohile moemeli oa bohlokoa oa motlatsi liindastering tse ngata. Leha ho le joalo, cellulose ea hydroxyethyl ha e fumanehe ka ho toba ho thepa ea tlhaho, empa e fumanoa ka ho fetola lik'hemik'hale cellulose ea tlhaho. Ho fihlela sena, ho utloisisa mohloli oa tlhaho oa hydroxyethyl cellulose, re lokela ho qala ka ho utloisisa mohloli le sebopeho sa cellulose.
Mohloli oa tlhaho oa cellulose
Cellulose ke e 'ngoe ea li-polymers tse ngata ka ho fetisisa lefatšeng' me e fumaneha ka bongata maboteng a lisele tsa limela, haholo limela tse entsoeng ka lehong, k'hothone, folaxe le likhoele tse ling tsa semela. Ke karolo ea bohlokoa mohahong oa limela 'me e fana ka matla a mochine le botsitso. Setsi sa motheo sa selulose ke molek'hule ea tsoekere, e hokahaneng ka li-bond β-1,4-glycosidic ho etsa sebopeho sa ketane e telele. Joalo ka thepa ea tlhaho ea polymer, selulose e na le thepa e ntle ea 'mele le ea lik'hemik'hale, e etsa hore e be thepa ea bohlokoa bakeng sa lihlahisoa tse fapaneng.
Mokhoa oa ho lokisa hydroxyethyl cellulose
Le hoja cellulose ka boeona e na le lintho tse ngata tse babatsehang, mefuta ea eona ea tšebeliso e lekanyelitsoe ho isa bohōleng bo itseng. Lebaka le ka sehloohong ke hore selulose ha e na ho qhibiliha hantle, haholo-holo ho qhibiliha ho fokolang metsing. E le ho ntlafatsa thepa ena, bo-rasaense ba fetola selulose ka lik'hemik'hale ho lokisa lihlahisoa tse fapaneng tsa cellulose. Hydroxyethyl cellulose ke ether e qhibilihang ka metsing selulose e fumanoang ka ethoxylating cellulose ea tlhaho ka karabelo ea lik'hemik'hale.
Ts'ebetsong e khethehileng ea ho itokisa, cellulose ea tlhaho e qala ho qhibiliha ka tharollo ea alkali, ebe ethylene oxide e kenngoa tsamaisong ea karabelo. Ethoxylation reaction ea ethylene oxide le lihlopha tsa hydroxyl ka selulose li etsahala ho hlahisa hydroxyethyl cellulose. Phetoho ena e eketsa hydrophilicity ea liketane tsa cellulose, ka hona e ntlafatsa ho qhibiliha ha eona le thepa ea viscosity metsing.
Mehloli ea mantlha ea thepa e tala
Lisebelisoa tsa mantlha tsa tlhaho bakeng sa ho lokisoa ha hydroxyethyl cellulose ke selulose, 'me mehloli ea tlhaho ea cellulose e kenyelletsa:
Patsi: Likahare tsa selulose ka lehong li phahame, haholo-holo ka lehong la coniferous le le makhasi a sephara, moo selulose e ka fihlang ho 40% -50%. Wood ke e 'ngoe ea mehloli ea bohlokoa ka ho fetisisa ea cellulose indastering, haholo-holo ho etsa pampiri le tlhahiso ea lihlahisoa tsa cellulose.
Cotton: fiber ea k'hothone e batla e entsoe ka selulose e hloekileng, 'me selulose e ka har'a k'hothone e phahame ho feta 90%. Ka lebaka la bohloeki bo phahameng, fiber ea k'hothone e atisa ho sebelisoa ho lokisa lihlahisoa tsa boleng bo phahameng ba cellulose.
Likhoele tsa semela tse kang folaxe le hemp: Likhoele tsena tsa semela le tsona li na le selulose e ngata, 'me kaha likhoele tsena tsa semela hangata li na le matla a holimo a mochini, li boetse li na le melemo e itseng ea ho ntšoa ha cellulose.
Litšila tsa temo: ho kenyelletsa joang, joang ba koro, joang ba poone, joalo-joalo. Lisebelisoa tsena li na le selulose e itseng, 'me selulose e ka ntšoa ho tsona ka mekhoa e nepahetseng ea phekolo, ho fana ka mohloli o theko e tlaase le o tsosolositsoeng oa thepa e tala bakeng sa tlhahiso ea lihlahisoa tsa cellulose. .
Libaka tsa ts'ebeliso ea hydroxyethyl cellulose
Ka lebaka la thepa e khethehileng ea hydroxyethyl cellulose, e sebelisoa haholo libakeng tse ngata. Lintlha tse latelang ke likarolo tse 'maloa tse kholo tsa ts'ebeliso:
Indasteri ea kaho: Hydroxyethyl cellulose e sebelisoa haholo ho thepa ea mohaho e le setsi se teteaneng le se bolokang metsi, haholo-holo ka seretse sa samente, gypsum, putty powder le lisebelisoa tse ling, tse ka ntlafatsang ka katleho thepa ea kaho le ho boloka metsi.
Indasteri ea letsatsi le letsatsi ea lik'hemik'hale: Ka litlolo, lihlahisoa tsa tlhokomelo ea letlalo, li-shampoo le lihlahisoa tse ling tsa letsatsi le letsatsi tsa lik'hemik'hale, hydroxyethyl cellulose e sebelisoa e le setepi le se tsitsitseng ho ntlafatsa maikutlo le botsitso ba sehlahisoa.
Lipente le liphahlo: Ka indasteri ea ho roala, hydroxyethyl cellulose e sebelisoa e le moemeli oa ho thibela le ho laola rheology ho ntlafatsa ts'ebetso ea ho roala le ho qoba ho fokotseha.
Tšimo ea meriana: Litokisetsong tsa meriana, hydroxyethyl cellulose e ka sebelisoa e le se tlamang, se teteaneng le se emisang matlapa ho ntlafatsa litšobotsi tsa tokollo le botsitso ba lithethefatsi.
Le hoja hydroxyethyl cellulose e se ntho e hlahang ka tlhaho, thepa ea eona e tala, selulose, e teng ka bongata limela ka tlhaho. Ka phetoho ea lik'hemik'hale, cellulose ea tlhaho e ka fetoloa cellulose ea hydroxyethyl ka ts'ebetso e ntle haholo 'me ea sebelisoa liindasteri tse fapaneng. Limela tsa tlhaho tse kang lehong, k'hothone, folaxe, joalo-joalo li fana ka mohloli o ruileng oa lisebelisoa tse tala bakeng sa tlhahiso ea hydroxyethyl cellulose. Ka tsoelopele ea mahlale le thekenoloji le keketseho ea tlhokahalo ea indasteri, ts'ebetso ea tlhahiso ea hydroxyethyl cellulose le eona e ntse e ntlafatsoa khafetsa, 'me ho lebelletsoe hore e bonts'e boleng ba eona bo ikhethang mafapheng a mangata nakong e tlang.
Nako ea poso: Oct-23-2024