Methyl hydroxyethyl cellulose (MHEC) ke motsoako oa bohlokoa oa cellulose ether o nang le liphetoho tse peli tsa methylation le hydroxyethylation.Liaparo tse entsoeng ka metsi, MHEC e phetha karolo ea bohlokoa ka thepa ea eona e ikhethang ea 'mele le lik'hemik'hale.
I. Litšobotsi tsa ts'ebetso
Ho teteana
Lihlopha tsa hydroxyethyl le methyl mohahong oa limolek'hule oa MHEC li ka etsa mohaho oa marang-rang ka tharollo e nang le metsi, kahoo e eketsa ka katleho viscosity ea ho roala.Phello ena e teteaneng e e nolofalletsa ho finyella rheology e nepahetseng maemong a tlaase, kahoo e fokotsa palo ea ho roala le ho boloka litšenyehelo.
Phetoho ea 'mele
MHEC e ka fana ka thepa e ntle ea ho roala metsi le e khahlanong le ho sisinyeha.Litšobotsi tsa eona tsa pseudoplastic li etsa hore seaparo se be le viscosity e phahameng sebakeng se tsitsitseng, 'me viscosity e ka fokotsoa nakong ea ts'ebetso ea kopo, e loketseng bakeng sa ho hlatsoa, rolara ea ho roala kapa ho fafatsa,' me qetellong e ka tsosolosa viscosity ea pele ka potlako ka mor'a hore ho hahoe. phethoa, ho fokotsa ho thetheha kapa ho rotha.
Ho boloka metsi
MHEC e na le thepa e ntle ea ho boloka metsi mme e ka laola ka nepo sekhahla sa ho lokolloa ha metsi.Thepa ena ke ea bohlokoa ka ho khetheha bakeng sa ho thibela lipente tse thehiloeng metsing hore li se ke tsa phunyeha, phofshoana le liphoso tse ling nakong ea ho omisa, hape li ka ntlafatsa boreleli le ho tšoana ha seaparo nakong ea kaho.
Emulsion botsitso
Joaloka surfactant, MHEC e ka fokotsa tsitsipano ea holim'a likaroloana tsa pigment ka lipente tse thehiloeng metsing le ho khothalletsa ho hasana ha tsona ka mokhoa o ts'oanang le thepa ea motheo, ka tsela eo ho ntlafatsa botsitso le boemo ba pente le ho qoba ho phalla le pula ea pigment.
Biodegradability
MHEC e tsoa ho selulose ea tlhaho 'me e na le biodegradability e ntle, e leng se etsang hore e be le melemo e totobetseng lipenteng tse nang le metsi a hloekileng le ho thusa ho fokotsa tšilafalo ea tikoloho.
2. Mesebetsi e ka sehloohong
Thickener
MHEC e sebelisoa haholo-holo e le motenya bakeng sa lipente tse thehiloeng metsing ho ntlafatsa ts'ebetso ea eona ea kaho le boleng ba filimi ka ho eketsa viscosity ea pente.Ka mohlala, ho kenyelletsa MHEC ho pente ea latex ho ka etsa seaparo sa junifomo leboteng ho thibela pente hore e se ke ea senyeha le ho senyeha.
Molaoli oa Rheology
MHEC e ka fetola rheology ea lipente tse thehiloeng metsing ho etsa bonnete ba hore ho bonolo ho li sebelisa nakong ea kaho 'me li ka khutlela kapele ho boemo bo tsitsitseng.Ka taolo ena ea rheological, MHEC e ntlafatsa ka katleho ts'ebetso ea kaho ea ho roala, e etsa hore e tšoanelehe bakeng sa mekhoa e sa tšoaneng ea ho roala.
Setsi sa ho boloka metsi
Ka liphahlo tse entsoeng ka metsi, thepa ea ho boloka metsi ea MHEC e thusa ho lelefatsa nako ea ho lula ha metsi ka har'a ho roala, ho ntlafatsa ho omisa ho ts'oana ha seaparo, le ho thibela ho hlahisa mapheo le mefokolo ea holim'a metsi.
Setsibotsi
Ka lebaka la bokhoni ba eona bo botle ba emulsifying, MHEC e ka thusa liphahlo tse entsoeng ka metsi ho theha tsamaiso e tsitsitseng ea emulsion, ho qoba pula le ho phalla ha likaroloana tsa pigment, le ho ntlafatsa botsitso ba polokelo ea ho roala.
Thuso ea ho etsa lifilimi
Nakong ea mokhoa oa ho etsa filimi oa ho roala, ho ba teng ha MHEC ho ka khothalletsa ho tšoana le ho boreleli ha seaparo, e le hore seaparo sa ho qetela se be le ponahalo le ts'ebetso e ntle.
3. Mehlala ea tšebeliso
Pente ea latex
Ka pente ea latex, mosebetsi o ka sehloohong oa MHEC ke ho tiisa le ho boloka metsi.E ka ntlafatsa haholo mekhoa ea ho phunya le ho roala ha pente ea latex, le ho etsa bonnete ba hore seaparo se boloka boreleli bo botle le ho tšoana nakong ea ho omisa.Ntle le moo, MHEC e ka boela ea ntlafatsa thepa ea anti-spplashing le sagging ea pente ea latex, e etsa hore ts'ebetso ea kaho e be bonolo.
Pente ea lehong e nang le metsi
Ka pente ea lehong e nang le metsi, MHEC e ntlafatsa ho boreleli le ho tšoana ha filimi ea pente ka ho fetola ponahalo le rheology ea pente.E ka boela ea thibela pente hore e se ke ea thekesela le ho senya holim'a lehong, le ho ntlafatsa phello ea mokhabiso le ho tšoarella ha filimi.
Pente ea kaho ea metsi
Ts'ebeliso ea MHEC ka pente ea meaho e nang le metsi e ka ntlafatsa ts'ebetso ea kaho le boleng ba ho roala pente, haholo ha ho koaheloa libaka tse kang mabota le siling, ho ka thibela ka nepo ho putlama le ho rotha ha pente.Ho phaella moo, thepa ea ho boloka metsi ea MHEC e ka boela ea eketsa nako ea ho omisa pente, ea fokotsa ho phunyeha le ho senyeha ha holim'a metsi.
Pente ea indasteri e tsamaisoang ke metsi
Ka pente ea indasteri e nang le metsi, MHEC ha e sebetse feela e le moemeli oa ho thibela metsi le ho boloka metsi, empa e boetse e ntlafatsa ho hasana le botsitso ba pente, e le hore pente e ka boloka ts'ebetso e ntle le ho tšoarella libakeng tse rarahaneng tsa indasteri.
IV.Litebello tsa 'maraka
Ka melaoana e ntseng e eketseha ea ts'ireletso ea tikoloho le tlhoko e ntseng e eketseha ea thepa ea kaho e tala, tlhoko ea 'maraka ea lipente tse tsamaisoang ke metsi e ntse e hola.E le tlatsetso ea bohlokoa lipenteng tsa metsi, MHEC e na le menyetla e pharaletseng ea 'maraka.
Kholiso ea leano la tikoloho
Lefats'eng ka bophara, maano a tikoloho a ntse a tiisa lithibelo tse tsoang ho volatile organic compound (VOC), e khothalelitseng ts'ebeliso ea likhoele tse tsoang metsing.E le tlatsetso e amanang le tikoloho, MHEC e bapala karolo ea bohlokoa ho koahela ka metsing, 'me tlhokahalo ea eona e tla eketseha ka ho atolosoa ha' maraka oa ho roala metsi.
Tlhokahalo e ntseng e eketseha indastering ea kaho
Tlhokahalo e ntseng e eketseha ea li-VOC tse tlase, tse sebetsang hantle haholo indastering ea kaho e boetse e khothalelitse ts'ebeliso ea MHEC ka har'a meaho ea meaho ea metsi.Haholo-holo bakeng sa marako a ka hare le ka ntle, MHEC e ka fana ka ts'ebetso e babatsehang ea kaho le ho tšoarella ho finyella tlhokahalo ea 'maraka.
Ho eketsa ts'ebeliso ea liaparo tsa indasteri
Tlhokahalo e ntseng e eketseha ea liphahlo tse nang le tikoloho sebakeng sa indasteri e boetse e khothalelitse ts'ebeliso ea MHEC ka liphahlo tsa indasteri tse tsamaisoang ke metsi.Ha liaparo tsa indasteri li ntse li tsoela pele ho lebisa tlhokomelo ea tikoloho le litsela tse phahameng tsa ts'ebetso, MHEC e tla bapala karolo e hlahelletseng ho ntlafatsa ts'ebetso ea ho roala le litšobotsi tsa tikoloho.
Methyl hydroxyethyl cellulose (MHEC) e phetha karolo ea bohlokoa ka ho roala ka metsing ka ho teteana ha eona ho babatsehang, phetoho ea rheology, ho boloka metsi, botsitso ba emulsion le biodegradability.Tšebeliso ea eona ka liphahlo tse thehiloeng metsing ha e ntlafatse feela ts'ebetso ea kaho le boleng ba ho roala liaparo, empa hape e lumellana le mokhoa oa ho sireletsa tikoloho le tsoelo-pele e tsitsitseng.Ka tlhokahalo e ntseng e eketseha ea 'maraka bakeng sa lisebelisoa tse phahameng, tse tlaase tsa VOC tse thehiloeng metsing, menyetla ea kopo ea MHEC tšimong ena e tla ba e pharaletseng le ho feta.
Nako ea poso: Jun-18-2024