Hydroxyethyl Cellulose (HEC)ke polymer e se nang ionic e qhibilihang ka metsing e sebelisoang haholo ho koahela, thepa ea mohaho, lik'hemik'hale tsa letsatsi le letsatsi, meriana, ho cheka oli le liindasteri tse ling. Sebakeng sa ho roala, HEC e na le bohlokoa ba kopo ea bohlokoa e le motenya, stabilizer le thuso ea ho etsa filimi e nang le ts'ebetso e babatsehang.
1. Karolo e ka sehloohong ea HEC ka ho roala
1.1.Phello e teteaneng
E 'ngoe ea mesebetsi ea mantlha ea HEC ke ho fana ka phello e ntle ea ho tiisa bakeng sa liphahlo. Ka ho lokisa palo le mohlala oa viscosity oa HEC, ho roala ho ka ba le thepa e loketseng ea rheological nakong ea polokelo, kaho le ho thehoa ha filimi. Ho teteka ha ho ntlafatse feela thepa ea ho emisa le e khahlanong le ho lokisa ea ho roala, empa hape ho ntlafatsa boikutlo ba ho brusha le ts'ebetso ea ho fanyeha nakong ea ho roala, ho fokotsa ho phatloha le ho fanyeha.
1.2.Ntlafatsa tshebetso ya kaho
HEC e na le lisebelisoa tse ntle haholo tsa ho theola boima ba 'mele. Nakong ea ho roala, ho hlatsoa kapa ho fafatsa, ho ka ntlafatsa boikutlo ba ho ata le ho haha mohaho oa ho roala, ho etsa hore seaparo se be bonolo ho se sebelisa ka mokhoa o ts'oanang le ho ntlafatsa boleng ba kakaretso. HEC e na le matla a matla a ho boloka metsi, a ka liehang ka katleho ho tsitsisa ha metsi le ho thusa ho ntlafatsa nako e bulehileng le ho feto-fetoha ha kaho ea pente.
1..3.Tsitsisa tsamaiso ea emulsion
Ka lipente tse thehiloeng metsing tse kang pente ea latex, HEC, e le polymer e seng ea ionic, e ka tsitsisa boemo ba ho qhalakanngoa ha likaroloana tsa emulsion le li-pigments le li-fillers, ho thibela stratification le agglomeration e bakoang ke ho phalla ha likaroloana kapa sedimentation, le ho ntlafatsa botsitso ba polokelo ea pente.
1.4.Thusa ts'ebetsong ea ho etsa lifilimi
Le hoja HEC ka boeona e se ntho e entsoeng ka filimi, e ajoa ka mokhoa o ts'oanang ka filimi ea ho roala 'me e ka thusa ho etsa seaparo se teteaneng le se boreleli, ho ntlafatsa botšepehi le ponahalo ea boleng ba filimi,' me e loketse ka ho khetheha bakeng sa mekhoa ea ho penta ka hare ho lerako.
2. Melemo ea ts'ebetso ea HEC
Ho qhibiliha ha metsi hantle: HEC e ka qhibiliha hantle ka metsing a batang le a chesang, 'me ho bonolo ho e kenyelletsa tsamaisong ea tlhahiso ho theha tharollo e hlakileng kapa e khanyang.
Non-ionicity: E na le tumellano e ntle le likarolo tse fapaneng tsa ionic le mefuta e mengata ea li-emulsion, 'me e loketse mekhoa ea ho roala e nang le litekanyetso tse fapaneng tsa pH.
Botsitso bo phahameng: E ka lula e tsitsitse ka mefuta e mengata ea pH (ka kakaretso 3 ~ 11) 'me ha e na monyetla oa ho lahleheloa ke ts'ebetso ka lebaka la liphetoho tsa acidity le alkalinity.
E bolokehile ebile e na le botsoalle ba tikoloho: HEC e tsoa ho cellulose ea tlhaho, e ka senyeha, e kopana le melao ea tikoloho, ha e na VOC, ebile ha e lokolle likhase tse kotsi.
3. Mokhoa oa ho sebelisa HEC
Ha u sebelisa HEC, u lokela ho ela hloko mokhoa oa eona oa ho hasana le oa ho qhala. Mehato e latelang hangata e khothaletsoa:
Phahamiso ea phofo e omileng: Fafatsa phofo e omileng ea HEC butle-butle ka metsing a pholileng a pholileng ho qoba ho kopana. Lisebelisoa tse phahameng tsa ho kuta li ka sebelisoa ho ntlafatsa ts'ebetso ea ho hasana;
Ho kolobisa le ho ruruha: Likaroloana tsa HEC tse qhalakaneng li hloka ho monya metsi ka botlalo le ho ruruha, tseo ka kakaretso li nkang metsotso ea 10 ~ 30, ho itšetlehile ka mohlala oa HEC le mocheso oa metsi;
E qhibilihisoa ebile e pepenene: Ka mor'a ho kolobisa, tsoela pele ho sisinya kapa ho eketsa mocheso ka mokhoa o nepahetseng ho o qhaqha ka ho feletseng hore e be mokelikeli oa viscous o bonaletsang;
Eketsa ho foromo: Tharollo ea HEC e ka eketsoa ka mekhahlelo ea pele kapa ea morao-rao ea metsoako ho lokisa viscosity le thepa ea rheological ea tsamaiso ha ho hlokahala.
Baetsi ba bang ba boetse ba fana ka litharollo tsa pele kapa HEC e seng e loketse ho sebelisoa, e ka kenyelletsoang ka kotloloho ho nolofatsa ts'ebetso ea ts'ebetso.
4. Mehlala ea likopo tsa HEC mefuteng e fapaneng ea ho roala
4.1.Pente ea ka hare ea latex
Joaloka motenya o ka sehloohong, HEC e ntlafatsa maikutlo a thixotropy le kaho ea ho roala, e ntlafatsa ts'ebetso e khahlanong le ho senya, 'me e ntlafatsa ho tšoana le ho boreleli ha seaparo.
4.2.Liaparo tsa ka ntle tsa marako
Lirapeng tse ka ntle tsa lebota tse nang le litlhoko tse phahameng tsa boemo ba leholimo le khanyetso ea alkali, HEC e thusa ho ntlafatsa ho hanyetsa UV le botsofali, 'me e ntlafatsa ho khomarela lesela ho lera la motheo.
4.3.Liaparo tse mebala-bala le liaparo tsa bonono
HEC e ka thusa ho lokisa botsitso ba ho fanyeha ha likaroloana, ho thibela sedimentation ea likaroloana tsa mebala ka liaparo tse mebala-bala, le ho ntlafatsa ho tšoana ha sebopeho sa filimi le liphello tsa pono.
5. Litlhokomelo
Qoba agglomeration: HEC e tloaetse ho theha "fish eye" agglomerations nakong ea ts'ebetso ea ho eketsa metsi, e hlokang ho thibeloa ka ho phoka butle le ho hlohlelletsa hantle.
Thibela ho teteana ho feteletseng: Chelete e kenyellelitsoeng e hloka ho laoloa ka thata ho thibela tšitiso ea kaho kapa likoli tsa lifilimi ka lebaka la viscosity e feteletseng.
Sebelisa ka li-preservatives: HEC ke polymer ea tlhaho e senyehang habonolo ke likokoana-hloko. E lokela ho sebelisoa le li-preservatives tse loketseng ho eketsa nako ea polokelo.
E le tlatsetso e sebetsang ka katleho e phahameng, ts'ireletso ea tikoloho le ts'ebetso e felletseng, hydroxyethyl cellulose HEC e bapala karolo e ke keng ea nkeloa sebaka mehleng ea kajeno.indasteri ea ho roala ka metsi. Ts'ebetso ea eona e ntle ka ho fetesisa, ho emisoa, ho tlotsa le ho thusa kaho ha e ntlafatse ts'ebetso e akaretsang ea lihlahisoa tsa ho roala, empa hape e kopana le tataiso ea nts'etsopele ea ts'ireletso ea tikoloho le mokhoa o tlase oa VOC. Ka tlhoko e ntseng e hola ea li-additives tse sebetsang hantle indastering ea ho roala, litebello tsa ts'ebeliso ea HEC li tla pharalla le ho feta.
Nako ea poso: May-16-2025