Cellulose ether (CE) ke motsoako oa polymer o sebetsang ka bongata o fumanoang ka phetoho ea lik'hemik'hale ea cellulose ea tlhaho. E sebelisoa haholo ho li-adhesive tsa lithaele ka thepa ea mohaho. Sebopeho sa eona se ikhethang sa lik'hemik'hale le thepa ea 'mele e fana ka melemo e mengata ho ntlafatsa ts'ebetso ea li-adhesives tsa lithaele.
1. Thepa e teteaneng le ea ho emisa
Cellulose ether e sebetsa haholo joalo ka sekhomaretsi sa lithaelese. E ka eketsa haholo viscosity le botsitso ba sistimi, ka hona e ntlafatsa ts'ebetso ea kaho le ts'ebetso ea sekhomaretsi. Ka ho eketsa viscosity ea sekhomaretsi, cellulose ether e ka emisa ka nepo likaroloana tse tiileng le ho thibela li-colloids ho tloha stratification le pula nakong ea polokelo kapa tšebeliso.
Thickening effect: Cellulose ether e ka etsa mohaho oa marang-rang ka tharollo e nang le metsi, e koahela le ho emisa likaroloana tsa samente, 'me e etsa hore tsamaiso e be le viscosity e phahameng. Thepa ena e thusa ho thibela ho thella ha likhomaretsi tsa lithaele nakong ea kaho holim'a libaka tse otlolohileng.
Ho tsitsisa ho emisa: Ka ho hasanya likaroloana ka har'a matrix a viscous, li-cellulose ethers li lumella li-adhesive tsa lithaele hore li lule li lekana nakong ea ho ema, ka hona ho netefatsa hore ho sebetsa hantle le matla a ho qetela a tlamahano.
2. Ho boloka metsi
Ho boloka metsi ke e 'ngoe ea mesebetsi ea mantlha ea cellulose ethers. E ka monya metsi a mangata ka har'a likhomaretsi tsa lithaele, e lumella hore metsi a lokolloe butle-butle. Ts'ebetso ena e bohlokoa ho karabelo ea hydration ea lisebelisoa tse thehiloeng ho samente mme e ama ka kotloloho ts'ebetso ea ho folisa le thepa ea tlamahano ea likhomaretsi tsa lithaele.
Ts'ehetso ea karabelo ea metsi: Ho boloka metsi a li-cellulose ethers ho netefatsa hore samente e na le metsi a lekaneng bakeng sa hydration nakong ea ts'ebetso e thata, e leng bohlokoa ho ntlafatsa matla le thepa ea tlamahano ea likhomaretsi.
Nako e atolositsoeng e bulehileng: Hobane ho boloka metsi ho eketsa nako e fumanehang ea mongobo holim'a sekhomaretsi, basebetsi ba kaho ba na le nako e ngata ea ho lokisa le ho beha maemo, kahoo ba ntlafatsa katleho ea kaho.
3. Lintho tse ntlafetseng tsa rheological
Li-cellulose ethers li na le phello e kholo ho thepa ea rheological ea li-adhesive tsa lithaele. Rheology e bolela ho phalla le ho senyeha ha ntho e tlas'a khatello ea kelello. Cellulose ethers e ka fetola khatello ea lihlahisoa le thixotropy ea sekhomaretsi, kahoo e ntlafatsa ts'ebetso ea eona.
Taolo ea khatello ea lihlahisoa: Cellulose ethers e ka etsa matla a itseng a sebopeho sekhomaretsing, kahoo ho hlokahala matla a itseng a kantle ho qala colloid ho phalla. Sena se thusa ho thibela sekhomaretsi hore se se ke sa thella kapa se thella nakong ea kaho.
Ntlafatso ea Thixotropy: Li-cellulose ethers li etsa hore sekhomaretsi sa lithaele se be le viscosity e phahameng ha e eme, empa viscosity e fokotseha ka potlako tlas'a ketso ea matla a ho kuta, e leng ho nolofalletsang ho jala le ho hasana nakong ea kaho. Ka mor'a hore mohaho o phethoe, viscosity e tsosolosoa, e thusang ho boloka lithaele li le teng.
4. Ntlafatsa ts'ebetso ea anti-sag
Ha u kenya lithaele holim'a libaka tse otlolohileng kapa tse sekametseng, ho thibela sekhomaretsi hore se se ke sa thella ke taba ea bohlokoa. Li-cellulose ethers li ntlafatsa ka katleho ts'ebetso ea li-anti-sag tsa li-adhesives ka ts'ebetso ea tsona ea ho tiisa le ho fetola rheology, ho lumella colloid ho tiisa lithaele ka thata nakong ea kaho e otlolohileng.
Taolo ea Sag: Li-cellulose ethers li ka etsa sebopeho sa gel se nang le momahano o phahameng, e leng se etsang hore sekhomaretsi se be le khatello e phahameng ea chai holim'a metsi a holimo, kahoo a thibela lithaele hore li se ke tsa thella.
5. Matla a matla a tlamahano
Li-cellulose ethers li phetha karolo ea bohlokoa ho ntlafatseng matla a maqhama a likhomaretsi. Mehaho ea eona ea ho boloka metsi le taolo ea rheological e thusa likhomaretsi tsa lithaele hore li kenelle hantle holim'a lithaele le li-substrates, ka hona li ntlafatsa ho khomarela.
Ts'ebetso ea ho kolobisa: Li-cellulose ethers li fetola metsi a likhomaretsi ho li nolofalletsa ho kenella hantle le ho khomarela holim'a lithaele le li-substrates, ho eketsa sebaka sa ho kopanya, le ho ntlafatsa matla a ho kopanya.
Ho lumellana ho ntlafetseng: Ka lebaka la phello e teteaneng ea li-cellulose ethers, likarolo tsa sekhomaretsi li arolelitsoe ka mokhoa o lekanang, ho fokotsa bothata ba matla a ho kopanya a sa tšoaneng a bakoang ke sedimentation ea thepa ea sebakeng seo.
6. Thibela ho petsoha
Likhomaretsi tsa lithaele li atisa ho fokotseha le ho phunyeha ka lebaka la tahlehelo ea metsi nakong ea ho omisa le ho thatafatsa. Lintho tse bolokang metsi tsa cellulose ethers li ka fokotsa ho lahleheloa ke metsi ka mokhoa o atlehileng, tsa fokotsa ho fokotseha ha metsi, le ho thibela ho thehoa ha crack.
Ho omisa taolo ea shrinkage: Ka ho laola sekhahla sa ho lokolloa ha metsi, li-cellulose ethers li ka fokotsa ho fokotseha ha li-adhesive nakong ea ho omisa, ka hona ho fokotsa kotsi ea ho phatloha.
7. Ho ntlafala ha boemo ba leholimo le ho tšoarella
Li-cellulose ethers li ka boela tsa ntlafatsa ho hanyetsa boemo ba leholimo le ho tšoarella ha li-adhesive tsa lithaele. Botsitso ba eona bo phahameng boemong bo mongobo bo ka ntlafatsa ts'ebetso ea li-adhesives libakeng tse mongobo le ho ntlafatsa bokhoni ba ho thibela botsofali.
Ho hanyetsa mongobo: Li-cellulose ethers li ntse li ka boloka mesebetsi ea tsona libakeng tse mongobo, tse thusang li-adhesives tsa lithaele ho boloka ho khomarela nako e telele tlas'a maemo a mongobo.
Anti-botsofali: Li-cellulose ethers li ntlafatsa nako e telele ea li-adhesives ka ho sireletsa li-substrates tsa samente ho lahleheloa ke mongobo o potlakileng le khoholeho ea tikoloho.
8. Tšireletseho ea tikoloho
Li-cellulose ethers li tsoa ho selulose ea tlhaho 'me li etsoa ka phetoho ea lik'hemik'hale. Ba na le biodegradability e ntle le botsoalle ba tikoloho. Boemong ba thepa ea kajeno ea ho haha e ntseng e lebisa tlhokomelo ho ts'ireletso ea tikoloho le nts'etsopele e tsitsitseng, cellulose ethers e na le melemo e mengata e le tlatsetso e sireletsehileng le e sebetsang hantle.
Tšebeliso ea li-cellulose ethers ka li-adhesive tsa lithaele ke senotlolo sa ho ntlafatsa ts'ebetso ea tsona. Botenya ba eona, ho boloka metsi, phetoho ea rheology, anti-sagging, maqhama a matlafalitsoeng, le thepa ea ho thibela ho phatloha ho ntlafatsa haholo ts'ebetso ea kaho le phello ea ho qetela ea likhomaretsi tsa lithaele. Ka nako e ts'oanang, ts'ireletso ea tikoloho ea cellulose ethers e boetse e kopana le litlhoko tsa ts'ireletso ea tikoloho ea thepa ea kajeno ea mohaho. E le tlatsetso ea bohlokoa ea ts'ebetso, li-cellulose ethers li tla tsoela pele ho phetha karolo ea bohlokoa tšimong ea ho haha likhomaretsi, ho thusa nts'etsopele ea mekhoa e sebetsang hantle le e tšoarellang ea lithaelese.
Nako ea poso: Jun-21-2024