HEC (Hydroxyethylcellulose) ke polima e qhibilihang ka metsing e atisang ho sebelisoa ka mefuta e mengata ea likopo tsa lihlahisoa tsa indasteri le tsa bareki, haholo-holo ka liphahlo, litlolo, liindasteri tsa meriana le tsa lijo. Ts'ebetso ea hydration ea HEC e bua ka mokhoa oo HEC phofo e monyang metsi ka eona ebe e qhibiliha ka metsing ho etsa tharollo e ts'oanang.
Lintlha tse amang nako ea hydration ea HEC
Nako ea hydration ea HEC ha e tsitsitsoe, empa e angoa ke lintlha tse ngata. Ka tloaelo, nako ea hydration ea HEC metsing e ka fapana ho tloha metsotso e seng mekae ho ea ho lihora tse 'maloa. Lintlha tse latelang ke lintlha tse ka sehloohong tse amang nako ea HEC hydration:
Boima ba molek'hule le tekanyo ea ho kenya sebaka sa HEC: Boima ba molek'hule le tekanyo ea ho fetola HEC (tekanyo ea ho fetola e bua ka tekanyo eo lihlopha tsa hydroxyethyl li nkang sebaka sa lihlopha tsa hydroxyl ka molek'hule ea cellulose) li tla ama tekanyo ea eona ea metsi haholo. HEC e nang le boima bo boholo ba limolek'hule e nka nako e telele ho hydrate, ha HEC e nang le tekanyo e phahameng ea ho fetola e atisa ho ba le ho qhibiliha ha metsi hantle 'me lebelo la hydration le tla potlakisoa ka tsela e nepahetseng.
Mocheso oa metsi: Mocheso oa metsi ke e 'ngoe ea lintlha tsa bohlokoa tse amang nako ea HEC hydration. Ka kakaretso, mocheso o phahameng oa metsi o ka potlakisa ts'ebetso ea hydration ea HEC. Ka mohlala, metsing a futhumetseng, HEC e nosetsa ka potlako ho feta metsing a batang. Leha ho le joalo, mocheso oa metsi o phahameng haholo o ka etsa hore HEC e qhibilihe ka tsela e sa tšoaneng ebe e etsa li-clumps, kahoo hangata ho khothalletsoa ho laola mocheso oa metsi pakeng tsa 20 ° C le 40 ° C.
Ho potlakisa lebelo le mokhoa: Ho susumetsa ke mokhoa oa bohlokoa oa ho khothalletsa HEC hydration. Ka potlako lebelo le susumetsang, nako e khutšoanyane ea nako ea hydration ea HEC hangata. Leha ho le joalo, ho feteletsa ho ka hlahisa lipululana tse ngata haholo, tse amang boleng ba tharollo. Ka kakaretso ho kgothaletswa ho eketsa phofo ea HEC butle-butle ka lebelo le tlase le susumetsang ho qoba ho thehoa ha li-agglomerate le ho boloka ho tsitsisa ho itekanetseng ho pholletsa le ts'ebetso ea hydration.
pH boleng ba tharollo: HEC e batla e nahanela pH ea boleng 'me e sebetsa hantle ka ho fetisisa tikolohong e sa nke lehlakore kapa e nang le asiti hanyane. Tlas'a maemo a feteletseng a pH (joalo ka li-acids tse matla kapa li-bases), ho qhibiliha ha HEC ho ka ameha, ka hona ho lelefatsa nako ea hydration. Ka hona, ka kakaretso ho kgothaletswa ho etsa hydration ea HEC sebakeng se haufi le ho se nke lehlakore pH.
Mekhoa ea pele ea phekolo ea HEC: Mekhoa ea pele ea phekolo e kang ho omisa, ho sila, joalo-joalo e tla boela e ama ts'ebetso ea hydration ea HEC. Phofo e entsoeng hantle ea HEC e qhibiliha 'me e nosetsa metsi ka potlako. Ka mohlala, phofshoana ea HEC pele e qhala ka ethanol kapa glycerin pele e e kenya metsing e ka fokotsa haholo nako ea hydration.
Lipotso Tse Botsoang Khafetsa Nakong ea Ts'ebetso ea HEC Hydration
Nakong ea ts'ebetso ea hydration ea HEC, u ka 'na ua kopana le mathata a tloaelehileng, ao hangata a amanang le mokhoa oa ts'ebetso kapa maemo a tikoloho:
Agglomeration: Tlas'a maemo a sa nepahalang a ts'ebetso, phofo ea HEC e ka etsa li-agglomerations ka metsing. Hangata sena se bakoa ke taba ea hore ha phofshoana ea HEC e kopana le metsi, lera le ka ntle hang-hang le monya metsi le ho ruruha, ho thibela lera le ka hare hore le se ke la kopana le metsi, kahoo le etsa li-clumps. Boemo bona haholo lelefatsa nako hydration le lebisa ho tharollo inhomogeneity. Ho qoba sena, hangata ho kgothaletswa hore butle-butle o fafatse phofo ea HEC ha o ntse o hlohlelletsa.
Bothata ba bubble: Tlas'a matla a phahameng a ho kuta kapa ho sisinyeha ka potlako, litharollo tsa HEC li tloaetse ho hlahisa palo e kholo ea li-bubble. Li-bubble tsena tsa moea li ka ama boleng ba tharollo ea ho qetela, haholo ha li sebelisoa lipente kapa litlolo. Ka hona, ho tsosoa ka matla ho lokela ho qojoa nakong ea ts'ebetso ea hydration, 'me ho thehoa ha li-bubble ho ka fokotsoa ka ho eketsa defoamers.
Phetoho ea viscosity ea tharollo: The viscosity ea tharollo ea HEC butle-butle e eketseha ha ts'ebetso ea hydration e ntse e tsoela pele. Lits'ebetsong tse ling, joalo ka ha ho etsoa litlolo kapa likhomaretsi, taolo ea viscosity e bohlokoa. Haeba nako ea hydration e le telele haholo, viscosity e ka ba e phahameng haholo, e amang ts'ebetso. Ka hona, taolo e nepahetseng ea nako ea hydration ke ea bohlokoa ho fumana viscosity ea tharollo e lakatsehang.
HEC Hydration in Practical Applications
Lits'ebetsong tse sebetsang, ts'ebetso ea hydration ea HEC hangata e hloka ho ntlafatsoa hammoho le lits'ebetso tse ikhethileng tsa tlhahiso le litlhoko tsa sehlahisoa. Ka mohlala, ka litlolo tsa litlolo, e le hore u fumane mokhoa o lakatsehang le botsitso, HEC e atisa ho qhibiliha pele ho metsi a futhumetseng ebe lisebelisoa tse ling li kenngoa butle-butle. Liaparong tsa meralo, ho ka 'na ha hlokahala hore ho lokisoe lebelo le tsosang le mocheso oa metsi ho potlakisa ts'ebetso ea hydration ea HEC, kahoo ho ntlafatsa katleho ea tlhahiso.
Nako ea hydration ea HEC ke ts'ebetso e matla 'me e ameha ka ho feletseng ke lintlha tse ngata. Maemong a fapaneng a ts'ebeliso, e hloka ho lokisoa le ho ntlafatsoa ho latela maemo a ikhethileng ho netefatsa hore HEC e ka nosetsoa kapele le ka mokhoa o ts'oanang le ho etsa tharollo e tsitsitseng. Sena ha se thuse feela ho ntlafatsa katleho ea tlhahiso empa hape se tiisa boleng le ts'ebetso ea sehlahisoa sa ho qetela.
Nako ea poso: Aug-23-2024