Cellulose ether ke lisebelisoa tsa bohlokoa tsa lik'hemik'hale tse sebelisoang haholo ka phofo ea seretse mererong ea kaho. Ke mofuta oa li-cellulose derivatives tse fetotsoeng ka lik'hemik'hale ka lihlopha tsa hydroxyl ka limolek'hule tsa cellulose, ho akarelletsa le hydroxypropylmethylcellulose (HPMC), methylcellulose (MC), hydroxyethylcellulose (HEC), joalo-joalo. Li-cellulose ethers tsena li na le mesebetsi e fapaneng le thepa e ntle haholo, e li fang melemo ea bohlokoa ho lirekere tsa kaho.
(1) Ntlafatsa tšebetso ea kaho
1. Ntlafatsa mokhoa oa ho sebetsa
Li-cellulose ethers li sebetsa joalo ka li-thickeners le tse bolokang metsi seretseng. E ka ntlafatsa viscosity le thixotropy ea seretse, ho etsa hore ho be bonolo ho jala le ho boreleli, ka tsela eo ho ntlafatsa boiketlo le katleho ea kaho. Ho phaella moo, cellulose ether e ka thibela seretse ho arohana nakong ea ts'ebetso ea kaho, ho etsa bonnete ba ho lumellana le ho khomarela hantle ha seretse.
2. Ntlafatsa ho khomarela seretse
Cellulose ether e ka ntlafatsa haholo ho khomarela seretse ho substrate. Sena se bohlokoa haholo bakeng sa lits'ebetso tse joalo ka ho kenya lithaele kapa ho lipola tse hlokang maqhama a tiileng le substrate. Cellulose ether e lumella seretse ho boloka thepa e ntle ea ho khomarela libakeng tse mongobo kapa tse omeletseng, ho qoba mathata a ho tšolloa le ho phunyeha ho bakoang ke ho se khomarela ho lekaneng.
(2) Ntlafatsa sebopeho sa seretse
1. Ntlafatsa ho boloka metsi
Ho boloka metsi ke e 'ngoe ea thepa ea bohlokoa ea cellulose ether, e lumellang seretse ho boloka mongobo o lekaneng pele o thatafala. Tšobotsi ena e ka thibela ho tsoa ha metsi pele ho nako le ho fokotsa tahlehelo ea metsi ka har'a seretse, ka hona ho ntlafatsa ho lekana ha samente hydration reaction le ho khothalletsa ntlafatso ea matla le ho tšoarella ha seretse.
2. Ntlafatsa matla a seretse
Ka matla a ho boloka metsi a cellulose ether, samente e ka har'a seretse e ka tšeloa metsi ka botlalo ho hlahisa sehlahisoa se matla sa hydration. Sena se thusa ho ntlafatsa matla a khatello le a flexural a seretse. Ho phaella moo, cellulose ether e ka boela ea fokotsa mapetsong a bakoang ke ho fokotseha ha seretse nakong ea ts'ebetso e thata le ho boloka matla a kakaretso le botsitso ba seretse.
3. Ntlafatsa khanyetso ea leqhoa
Li-cellulose ethers li eketsa bongata ba seretse, e leng se etsang hore se se ke sa khona ho mamella maqhubu a ho qhibiliha. Ho hanyetsa ha leqhoa ho bohlokoa ka ho khetheha bakeng sa liretse tse sebelisoang libakeng tse batang, tse ka eketsang bophelo ba tšebeletso ea mohaho ka katleho le ho fokotsa litšenyehelo tsa tlhokomelo.
(3) Ntlafatsa maemo a tikoloho a kaho
1. Eketsa lihora tsa ho bula
Li-cellulose ethers li ka eketsa nako ea ho bula ha seretse, ke hore, nako eo seretse se lulang se sebetsa ka mor'a hore se behoe. Sena se molemo ka ho khetheha bakeng sa kaho ea mocheso o phahameng kapa libakeng tse omeletseng, ho fokotsa bothata ba ho thatafala pele ho nako ea seretse se amang boleng ba mohaho.
2. Ntlafatsa khanyetso ea sag
Ha o haha holim'a libaka tse otlolohileng, seretse se na le ho thella kapa ho thella. Cellulose ether e ntlafatsa ts'ebetso ea seretse se thibelang ho sisinyeha ka ho teteana, ho netefatsa hore seretse se ka khomarela ka mokhoa o tsitsitseng libakeng tse emeng le ho qoba liphoso tsa kaho.
(4) Melemo ea tikoloho le moruo
1. Ntlafatsa tšebeliso ea lintho tse bonahalang
Cellulose ether e ka ntlafatsa haholo ts'ebetso le boleng ba kaho ea seretse, le ho fokotsa litšila tsa thepa nakong ea kaho. Sena se na le bohlokoa ba moruo bakeng sa kaho e kholo mererong ea kaho, e ka fokotsang litšenyehelo tsa thepa le ho ntlafatsa melemo ea moruo ea kaho.
2. Ho baballa tikoloho
Li-cellulose ethers ke lisebelisoa tse thehiloeng linthong tse phelang 'me li na le tšusumetso e fokolang tikolohong nakong ea tlhahiso le tšebeliso ea tsona. Ho phaella moo, e ka atleha ho fokotsa tšilafalo ea bobeli nakong ea kaho ea seretse, joalo ka lerōle le litšila, 'me e finyella litlhoko tsa mehaho ea kajeno e tala.
(5) Mehlala e tobileng ea tšebeliso
1. Sekhomaretsi sa lithaele
Likhomaretsing tsa lithaelese tsa ceramic, ho eketsoa ha cellulose ether ho ka ntlafatsa haholo ts'ebetso, ho boloka metsi le matla a tlamahano ea sekhomaretsi, le ho ntlafatsa phello ea tlamahano le katleho ea kaho ea lithaelese tsa ceramic.
2. Seretse sa ho liha leboteng
Cellulose ether ka seretse sa plastering e ntlafatsa ts'ebetso le ts'ebetso ea anti-sag ea seretse, e netefatsa boreleli le boleng ba bokaholimo ba lera la ho lila, le ho fokotsa liphoso tsa kaho le mosebetsi oa ho lokisa.
3. Seretse se itekang
Cellulose ether ka seretse se ikemetseng se thusa ho ntlafatsa metsi le ho boloka metsi a seretse, ho se lumella ho ikemela fatše le ho ntlafatsa ho bata le ho sebetsa hantle ha mobu.
Ka kakaretso, ether ea cellulose e na le melemo e mengata ha ho sebelisoa phofo ea seretse mererong ea kaho. Ha e ntlafatse feela ts'ebetso ea kaho le thepa ea 'mele ea seretse, empa hape e ntlafatsa maemo a tikoloho le melemo ea moruo ea kaho. Tšebeliso ea cellulose ether e ntlafatsa boleng le ho tšoarella ha seretse sa mohaho le ho khothalletsa tsoelo-pele e tsitsitseng ea merero ea kaho. Ka tsoelo-pele e tsoelang pele ea theknoloji ea kaho, cellulose ether e tla ba le menyetla e pharaletseng ea ts'ebeliso ea seretse 'me e be thepa ea bohlokoa le ea bohlokoa bakeng sa kaho ea sejoale-joale.
Nako ea poso: Jul-02-2024