I. Selelekela
Hydroxethyl Cellulose Slllukese (Hec) ke polyter e sa quoeng metsi e sebelisoang ka metsing, bosholu ba kaho, lik'hemik'hale tsa letsatsi le letsatsi. Hec e fumanoa ke phetoho ea lik'hemik'hale ea cellulose, 'me thepa ea eona le ts'ebeliso ea eona e khethoa habonolo ke li-nydroythyl tse nkang sebaka sa Hydroyethyl ka limolek'hulek'huku.
II. Ts'ebetso ea Tlhahiso
Tsamaiso ea tlhahiso ea Hec e kenyelletsa mehato e latelang: Se latelang ke kenyelletso e qaqileng ea mohato ka mong:
Etherization ea cellulose
Cellulose e phekoloe ka alkali ho theha alkali cellulose (cellulese alkali). Ts'ebetso ena hangata e etsoa molemong oa boiketlo, o sebelisa tharollo ea sodium hydroxide ea ho phekola celluulose ea tlhaho ho theha alkali cellulose ea alkali. Karabelo ea lik'hemik'hale e tjena:
Cell -h Oh + Naoh → Cell-O-na + H2ocell-Oh + Naoh → Cell-O-na + h + h hee
Joale, alkali Celli Cellulose o ithaopesa le oxide ho theha hydroxethyl celdrothyl cembookulose. Karabelo e etsoa tlasa khatello e matla, hangata lilemo tse 30-100 ° C, 'me karabelo e tobileng e tjena:
Cell-O-na + ch2ch2o → cell-o-ce cell-o-ce cell-o-ce cell-o-na + ch 2ch 2ch
Karabelo ena e hloka taolo ea mocheso o hlakileng oa mocheso, khatello le palo ea oxide e ekelitsoeng ho netefatsa hore ho tla netefatsa hore na sehlahisoa se tšoana hantle le boleng ba sehlahisoa.
Ho hlatsoa
Ho ba le li-Hec tse sa koaeloang Ha ho na li-alkali tse sa tsejoeng tse sa tsejoeng, epide ea axide le lihlahisoa tse ling tse hlokahalang tse hlokang ho tlosoa ka ho hlatsoa metsi a mangata kapa anyriven. Palo e kholo ea metsi e hlokahala nakong ea ho hlatsoa metsi, le metsi a senyehileng kamora ho hlatsoa litlhoko tsa ho tšoaroa le ho lokolloa.
Ho felloa ke metsi
Moroallo o oa metsi ka mor'a ho hlatsoa o hloka ho foka, hangata ke ho fifala ha vachuum kapa karohano ea likholomo ho fokotsa litaba tsa mongobo.
Ho omella
Ho foka hec e omisitsoeng, hangata e omisoa ka ho omella kapa ho omella ho omella. Mocheso le nako o tlameha ho laoloa ka kotloloho nakong ea ho omisa ho thibela mocheso o phahameng oa ho soma kapa ho soma.
Ho tsitsa
Heck e omisitsoeng ea hec e hloka ho ba fatše le ho thibella ho fihlela kabo ea likarolo tsa karolo ea Unifor, 'me qetellong e theha phofo kapa sehlahisoa sa granular.
III. Litšobotsi tsa Ts'ebetso
Sekhahla sa Metsi
Hec o na le alloubility ea metsi a mangata mme a ka qhala kapele metsing a batang a hore a batang le a futhumetseng ho theha tharollo e pepenoneng kapa e tšoaetsanoang. Thepa ena ea selaoli e etsa hore e sebelisoe haholo joalo ka thipa ebile e le bonolo ho bakoang ke makhapetla le lihlahisoa tsa lik'hemik'hale tsa letsatsi le letsatsi.
Ho thekesela
HEC e bonts'a phello e matla ea thipa e matla ea ho halefa, 'me keketseho ea eona e eketseha ka keketseho ea boima ba limok'hule. Thepa ena e matla e e etsa hore e bapale karolo e tonyang, e ntlafatsang metsi le ho ntlafatsa ts'ebetso ea kaho ho tsoa ho likepe tse thehiloeng metsing le ho reha liketsahalong.
Rheology
Tharollo ea hec e na le thepa ea litsietsi, 'me lintho tsa eona li fetoha ka phetoho ea sekhahla sa shear, ho bonts'a sher has kapa pseudoplatsticity. Thepa ena ea marenene e e thusa ho fetola phara ea koae le kaho ho li-coatis le metsi a ho noang oli.
Empolfible le ho emisoa
Hec o na le thepa e ntle ea emul e ntle le e emisang, e ka tsitsitseng likarolong tse emisitsoeng kapa marotholi tsamaisong ea ho lahla lintho. Ka hona, Hec o sebelisoa ka lihlahisoa tse joalo ka bosholu ba emulsion le ho thibela lithethefatsi.
Biodegradadity
Hec ke ts'ebetso ea tlhaho ea celluulose ea celluulose le bilidralical e ntle, ha ho tšito ho tikoloho le ho kopana le litlhoko tsa ts'ireletso ea tikoloho e tala.
IV. Masimo a Kopo
Likotsi
Likopeng tse thehiloeng metsing, hec li sebelisoa e le bolotsana le tsietsi ho ntlafatsa phara, ts'ebetso ea kaho le thepa ea thibelo ea likokoana-hloko.
Kaho
Lisebelisoa tsa moaho, hec e sebelisoa ka phofo ea seretse e thehiloeng ho thibela le ho putlama ho ntlafatsa ts'ebetso ea kaho le ho boloka metsi.
Lik'hemik'hale tsa letsatsi le letsatsi
Ho li-nmpents, li-shampoos, le menoana ea meno, hec e sebelisoa e le bolotsana le tsietsi ho ntlafatsa maikutlo le botsitso ba sehlahisoa.
Li-oli
Ka lebaka la ho cheka ha oli ea oli le ho senyeha hoa oli, hec ho sebelisoa ho fetola litšila le ho emisoa ha Maro a ho nooang le polokeho.
Lipampiri
Ts'ebetsong ea lipampiri, hec e sebelisoa ho laola ho putlama le ho ntlafatsa mefuta e tšoanang le ea lefatše.
Hydroxethyl celdlosese (Hec) e sebelisoa haholo masimong a eona a indasteri, matla a eona a qholotsang, a boreleli, a boreleli, hammoho le li-bidedradical e ntle. Ts'ebetso ea eona ea tlhahiso e ntse e hola. Ka mehato ea phatlalatso ea lilululose, ho hlatsoa le ho hlatsoa, ho omella, lihlahisoa tsa hec tse nang le ts'ebetso e tsitsitseng 'me e ntle e ka lokisoa. Nakong e tlang, ka ntlafatso ea litlhokahalo tsa ts'ireletso ea tikoloho le tsoelo-pele ea theknoloji, menyetla ea ts'ebeliso ea Liphiri ea Hec e tla ba pharaletseng.
Nako ea poso: Jul-02-2024