Cellulose ether ke mofuta oa thepa ea polymer e hlahisoang ke selulose ea tlhaho e fetolang lik'hemik'hale. E sebelisoa haholo ho haha, meriana, lijo, liaparo, tlhokomelo ea botho le masimo a mang. Sebopeho se khethehileng sa molek'hule sa cellulose ether se fana ka thepa e mengata e ikhethang 'me ka hona e na le melemo le melemo e totobetseng liindastering tse ngata.
1. Thickening le rheology taolo
E 'ngoe ea likarolo tse hlokomelehang tsa cellulose ethers ke bokhoni ba tsona bo botle ba ho tenya. Ka mor'a hore e qhibilihe ka metsing, cellulose ether e ka etsa tharollo e tšoanang ea colloidal 'me ka katleho e eketsa viscosity ea tsamaiso. Sena se e lumella ho phetha karolo ea ho laola metsi le ho ntlafatsa ts'ebetso ea ho sebetsa ka thepa ea kaho (e kang seretse, seretse) le liphahlo. Ka ho lokisa litekanyetso le mofuta oa cellulose ether, thepa e fapaneng ea rheological e ka fumanoa ho fihlela litlhoko tsa lits'ebetso tse fapaneng. Ka mohlala, lithakong tsa kaho, li-cellulose ethers li ka thibela ho arohana ha thepa nakong ea ho kopanya, ho netefatsa ho tšoana ha thepa nakong ea kaho le ho qoba ho phunyeha kapa ho oa.
2. Ho boloka metsi
Molemo o mong oa bohlokoa oa li-cellulose ethers bakeng sa tšebeliso ea tsona e pharalletseng mohahong ke bokhoni ba tsona bo botle ba ho boloka metsi. E ka notlela mongobo ka har'a metsoako ea phofo e ommeng joalo ka samente le gypsum, ka hona e liehisa ho tsoa mouoane ha metsi linthong. Bakeng sa seretse se thehiloeng ho samente le lisebelisoa tse thehiloeng ho gypsum, ho boloka metsi a cellulose ethers ho thusa ho ntlafatsa katleho ea karabelo ea hydration, ho etsa bonnete ba hore lisebelisoa li phekoloa ka ho feletseng le ho thatafala, kahoo ho ntlafatsa matla le ho tšoarella ha mohaho. Ka nako e ts'oanang, maemong a phahameng a mocheso kapa libakeng tse omeletseng, ts'ebetso ea ho boloka metsi ea cellulose ether e bohlokoa ka ho khetheha ho qoba ho senyeha ha boleng ba kaho ka lebaka la tahlehelo ea metsi.
3. Lintho tse ntle tsa ho etsa lifilimi
Li-cellulose ethers li na le thepa e babatsehang ea ho etsa lifilimi 'me li sebelisoa haholo ho roala le ho khomarela. E ka etsa filimi e ts'oanang le e teteaneng holim'a ho roala holim'a metsi, e sa keneleng metsi, e se nang lerōle le e khahlanong le oxidation, ha e ntse e matlafatsa boreleli le ho tiea ha seaparo. Liaparong tsa meralo, li-cellulose ethers li ka ntlafatsa ho khomarela le ho roala khanyetso ea ho roala le ho lelefatsa bophelo ba eona ba ts'ebeletso. Ho phaella moo, thepa ea ho etsa filimi ea li-cellulose ethers e boetse e le ea bohlokoa haholo litokisetsong tsa meriana, tse ka thusang lithethefatsi ho etsa liaparo tsa filimi ho laola litekanyetso tsa ho lokolloa ha lithethefatsi le ho ntlafatsa botsitso ba lithethefatsi.
4. Ho hanyetsa ho rarolla le ho emisa
Lits'ebetsong tsa metsi tse kang li-coatings le emulsions, cellulose ether e ka sebelisoa e le stabilizer e sebetsang ho thibela ho lokisa likaroloana tse tiileng. E ntlafatsa botsitso ba sehlahisoa le ts'ebeliso ka ho eketsa viscosity ea lino le ho boloka kabo e tšoanang ea likaroloana tse tiileng. Ka mohlala, ka lipente tse entsoeng ka metsi, li-cellulose ethers li ka thibela haholo pula ea li-pigment kapa li-fillers, li boloka seaparo sa pente le ho ntlafatsa boreleli ba mohaho.
5. Ntlafatsa matla a maqhama
Libakeng tsa kaho le li-adhesives, tšebeliso ea li-cellulose ethers e ka ntlafatsa ka katleho matla a tlamahano ea thepa, haholo-holo ka li-polymer-modified mortars. Karolo ea eona e le motenya le moemeli oa ho boloka metsi a ka matlafatsa kamano pakeng tsa seretse le lisebelisoa tsa motheo. Ho khomarela ha seretse ho fokotsa mathata a ho phunyeha le ho fokotseha ha seretse. Li-cellulose ethers li ka boela tsa fetola ka katleho nako ea ho bula sekhomaretsi, ho netefatsa nako e lekaneng ea ho lokisa le ho fokotsa nakong ea kaho.
6. Ntlafatsa tshebetso ya kaho
Li-cellulose ethers li boetse li ntlafatsa haholo thepa ea kaho ea mefuta e sa tšoaneng ea thepa ea mohaho, haholo-holo ka seretse sa samente le thepa e entsoeng ka gypsum. Rheology ea eona e ntlafatsa haholo ho sutumetsa, ho boreleli le boiketlo ba ts'ebetso nakong ea kaho. Basebetsi ba kaho ba ka sebelisa lisebelisoa habonolo le ho fokotsa ho khomarela lisebelisoa le litšila tsa thepa. Tšebeliso ea cellulose ether e boetse e ntlafatsa ts'ebetso ea anti-sag ea thepa, ho etsa bonnete ba hore bokaholimo ka mor'a ho hahoa bo boreleli ebile bo botle.
7. Ho hanyetsa mocheso o phahameng le botsitso ba lik'hemik'hale
Cellulose ether e na le botsitso bo botle ba mocheso le lik'hemik'hale tse nang le lik'hemik'hale, tse e lumellang ho boloka thepa ea eona ea 'mele le ea lik'hemik'hale tlas'a maemo a sa tšoaneng a feteletseng. Li-cellulose ethers li ka hanela ka katleho ho senyeha ha mocheso o phahameng, acid-base kapa libaka tsa oxidizing, ho netefatsa hore li tšoarella le ho tšepahala ho haha, indasteri ea lik'hemik'hale, meriana le masimo a mang. Tšobotsi ena e boetse e etsa hore li-ethers tsa cellulose li sebelisoe haholo lits'ebetsong tse hlokang nako e telele joalo ka merafo ea oli le ho aha ho thibela metsi.
8. Biocompatible le bao e seng chefo
Li-cellulose ethers ke metsoako e tsoang ho selulose ea tlhaho 'me e sebelisoa haholo indastering ea meriana le ea lijo ka lebaka la ho lumellana ha tsona hantle le ho se chefo. E le li-excipients tsa meriana, cellulose ethers li ka fetola litekanyetso tsa ho lokolloa ha lithethefatsi le ho ntlafatsa botsitso ba lithethefatsi. Li ka boela tsa sebelisoa e le li-thickeners, stabilizers, le li-gelling agents ka lihlahisoa tsa lijo ho netefatsa tatso le botsitso ba sehlahisoa.
9. Tšireletso ea tikoloho le ho ikatisa
Li-cellulose ethers li tsoa ho cellulose ea tlhaho, e leng mohloli o tsosolositsoeng, 'me mekhoa ea eona ea tlhahiso le tšebeliso ea eona e na le botsoalle ba tikoloho. Sena se etsa hore e be khetho e nepahetseng ea ho khutlisa lik'hemik'hale tse ling tsa setso, haholo kajeno ka tlhokahalo e ntseng e hola ea lisebelisoa tse tšoarellang le tse baballang tikoloho. Tšebeliso ea li-cellulose ethers e lumellana le mokhoa oa tsoelo-pele oa tšireletso ea tikoloho le k'hemistri e tala.
10. Mefuta e mengata ea lisebelisoa
Ho feto-fetoha ha li-cellulose ethers ho entse hore ho be le mefuta e mengata ea lisebelisoa liindastering tse ngata. Ka mohlala, indastering ea kaho, e sebelisoa ka seretse sa motsoako o omileng, li-adhesive tsa lithaele tsa ceramic, litsamaiso tsa ka ntle tsa marako, joalo-joalo; indastering ea meriana, cellulose ether ke sekhomaretsi se laoloang ka tloaelo se laoloang; indastering ea lijo, e ne e sebelisoa joalo ka motenya, stabilizer le gelling agent. Ho phaella moo, li-cellulose ethers li boetse li phetha karolo ea bohlokoa merafong ea masimo a oli, litlolo le lihlahisoa tsa letsatsi le letsatsi tsa lik'hemik'hale.
Cellulose ether ke sesebelisoa sa polymer se feto-fetohang se nang le melemo e mengata joalo ka ho tiea, ho boloka metsi, ho etsa lifilimi, ho tsitsisa le ho khomarela ho matlafatsang. Tšebeliso ea eona ho tsa kaho, meriana, lijo le masimo a mang ha e ntlafatse ts'ebetso le boleng ba sehlahisoa feela, empa hape e kopana le litlhoko tsa ts'ireletso ea tikoloho le nts'etsopele e tsitsitseng. Ka tsoelo-pele ea theknoloji le katoloso ea libaka tsa ts'ebeliso, li-cellulose ethers li tla bapala karolo ea bohlokoa le ho feta nakong e tlang.
Nako ea poso: Sep-14-2024