Li-cellulose ethers li na le li-polymers tse sebetsang ka mokhoa o fapaneng le tse ngata tse sebelisoang liindastering tse fapaneng, ho kenyeletsoa tlhahiso ea lirafshoa tsa khekhe ea linotsi le lihlahisoa tse ling.
1. Kenyelletso ea cellulose ether:
Li-cellulose ethers li tsoa ho cellulose, polima ea tlhaho e fumanehang maboteng a lisele tsa semela. E fumanoa ka phetoho ea lik'hemik'hale ea selulose, e hlahisang li-polymers tse qhibilihang ka metsing kapa tse qhalakahang ka metsi. Mehloli e tloaelehileng ea selulose e kenyelletsa makhasi a lehong, k'hothone le lisebelisoa tse ling tsa semela.
2. Mefuta ea li-cellulose ethers:
Ho na le mefuta e mengata ea li-cellulose ethers, e 'ngoe le e' ngoe e na le thepa e ikhethang e loketseng lits'ebetso tse ikhethileng. Mefuta e meng e tloaelehileng e kenyelletsa methylcellulose (MC), ethylcellulose (EC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), le carboxymethylcellulose (CMC). Khetho ea cellulose ether e itšetlehile ka thepa e lakatsehang ea sehlahisoa sa ho qetela.
3. Mokhoa oa tlhahiso:
Ho hlahisoa ha cellulose ether ho kenyelletsa mehato e mengata, ho kopanyelletsa le ho ntšoa ha cellulose, ho fetola lik'hemik'hale le ho hloekisa. Cellulose e qala ho ntšoa limela, ebe liphetoho tsa lik'hemik'hale li sebelisoa ho hlahisa lihlopha tse sebetsang tse kang methyl, ethyl, hydroxyethyl kapa carboxymethyl. Sephetho sa cellulose ether se hloekisoa ho tlosa litšila le ho fihlela boleng bo lakatsehang.
4. Lintho tsa cellulose ether:
Li-cellulose ethers li na le mefuta e mengata ea lintho tse lakatsehang, tse etsang hore li tšoanelehe bakeng sa lisebelisoa tse ngata. Lintho tsena li kenyelletsa ho qhibiliha ha metsi, bokhoni ba ho etsa filimi, bokhoni ba ho teteka, le botsitso holim'a mocheso o pharaletseng le pH. Lintho tsena li kenya letsoho ho tenyetseheng ha cellulose ethers liindastering tse fapaneng.
5. Tšebeliso ea cellulose ether:
Li-cellulose ethers li sebelisoa liindastering tse ngata, ho kenyelletsa le tsa meriana, lijo, kaho, masela le lirafshoa. Ts'ebeliso ea eona e tloha ho ts'ebeliso e le setsi sa motenya lijong ho ea ho ho ntlafatsa thepa ea thepa ea moaho. Lefapheng la lirafshoa, li-cellulose ethers li phetha karolo ea bohlokoa tlhahisong ea khekhe ea linotši.
6. Cellulose ether ka lirafshoa tsa khekhe ea linotsi:
Li-ceramics tsa khekhe ea linotsi ke lisebelisoa tsa sebopeho tse nang le lisele tse hlophisitsoeng ka mokhoa oa hexagonal kapa oa mahe a linotši. Li-ceramics tsena li tsejoa ka sebaka sa tsona se phahameng, katoloso e tlase ea mocheso, le thepa e ntle haholo ea mocheso le phetisetso ea bongata. Li-cellulose ethers li sebelisoa ha ho etsoa li-ceramics tsa khekhe ea linotsi ka mabaka a latelang:
Li-Binders le Rheology Modifiers: Li-ether tsa cellulose li sebetsa e le li tlamella, li tšoara likaroloana tsa ceramic hammoho nakong ea ho bopa. Ho feta moo, e sebetsa joalo ka rheology modifier, e amang phallo le deformation ea li-slurries tsa ceramic.
Sebopeho sa 'mele o motala: Li-slurry tsa ceramic tse nang le cellulose ethers li sebelisoa ho theha 'mele o motala bakeng sa lirafshoa tsa khekhe ea linotsi. 'Mele o motala ke meaho ea ceramic e sa chesoang e bōpehileng le e omisitsoeng pele e tsoela pele ho sebetsa.
Ho kopanya le ho omisa: Cellulose ethers e thusa likaroloana tsa ceramic ho kopanya nakong ea ho omisa. E thibela ho phunyeha le ho senyeha, ho netefatsa hore 'mele o motala o boloka botšepehi ba oona ba sebopeho.
Ho chesa le ho chesa: Mehatong e latelang ea tlhahiso ea khekhe ea linotši, li-cellulose ethers lia chesa, li siea likheo tse thusang ho theha sebopeho sa khekhe ea linotši. Ts'ebetso ea sintering joale e tsoela pele ho fumana sehlahisoa sa ho qetela sa ceramic.
7. Lisebelisoa tse ling tsa cellulose ethers:
Ntle le li-ceramics tsa mahe a linotsi, li-cellulose ethers li sebelisoa lihlahisoa le liindasteri tse ling:
Pharmaceutical: E sebelisoa e le tlamahano le disintegrant mefuteng ea matlapa.
Indasteri ea lijo: Li-cellulose ethers li sebelisoa e le li-thickeners, stabilizers le emulsifiers lijong.
Lisebelisoa tsa Kaho: E ntlafatsa thepa ea seretse, likhomaretsi le lira.
Masela: Li-cellulose ethers li sebelisoa ho hatisa masela le lits'ebetsong tsa boholo.
8. Liphephetso le maikutlo:
Le hoja li-cellulose ethers li fana ka melemo e mengata, tšebeliso ea tsona e boetse e hlahisa mathata a itseng. Tsena li ka kenyelletsa litaba tse ka bang teng tsa tikoloho tse amanang le ts'ebetso ea tlhahiso le tlhoko ea ho fumana thepa e tala ka mokhoa o tsitsitseng. Mosebetsi oa lipatlisiso le nts'etsopele o ntse o tsoela pele ho rarolla mathata ana le ho ntlafatsa ts'ebetso ea kakaretso ea lihlahisoa tsa cellulose ether.
9. Mekhoa le lintlafatso tsa kamoso:
Ha tsoelo-pele ea theknoloji le ts'ebetso e ntse e fetoha taba ea bohlokoa haholoanyane, bokamoso ba cellulose ethers bo ka kenyelletsa boqapi mekhoeng ea tlhahiso, ts'ebeliso e eketsehileng ea lisebelisoa tse tala tse thehiloeng ho bio, le nts'etsopele ea lits'ebetso tse ncha. Ho feto-fetoha ha li-cellulose ethers ho etsa hore e be thepa e tšepisang bakeng sa liindasteri tse fapaneng, 'me lipatlisiso tse tsoelang pele li ka senola menyetla e mecha.
10. Qetello:
Cellulose ethers ke li-polymers tse sebetsang ka mokhoa o fapaneng tse nang le lits'ebetso tse ngata liindastering tse ngata. Tšebeliso ea eona ho li-ceramics tsa cellular e totobatsa bohlokoa ba eona ho bopeng thepa e tsoetseng pele e nang le thepa e ikhethang. Ha liindasteri li ntse li tsoela pele ho batla lisebelisoa tse tšoarellang le tse sebetsang, li-cellulose ethers li lebelletsoe ho phetha karolo ea bohlokoa ho fihlela litlhoko tsena. Patlisiso le nts'etsopele e ntseng e tsoela pele li tla eketsa ts'ebeliso ea lihlahisoa tsa cellulose ether le ho matlafatsa ts'ebetso ea tsona ka kakaretso.
Nako ea poso: Jan-23-2024