Methylcelllll (Mc) ke ntho e tloaelehileng ea polytherized e bonolo ea polytherize, Ether e sentsoeng e sentsoeng ke selefounu ea tlhaho ea methylating. Ka lebaka la thepa ea eona e ikhethang ea 'mele le ea lik'hemik'hale, e sebelisoa ka hohle ho kaho, lijo, meriana, litlolo, pampiri le likokonyana.
1. Classifice ka tekanyo ea sebaka
Tekanyo ea sebaka (DS) e bua ka boleng bo tloaelehileng ba lihlomo tsa hydroxyl ke lihlopha tse ling tsa methyl unit e ngoe le e ngoe ea glucose. Ho na le lihlopha tse 3 tsa hydroxy li ka selikalikoe se seng le se seng sa molek'hule ea cellulo e ka nkeloa sebaka ke lihlopha tsa methyl. Ka hona, boemo ba ho nka nako ea methylcellllllllllllllll Ho ka fapana ho tloha ho 0 ho isa ho tse tharo. Ho latela tekanyo ea sebaka, methylcelll
Tekanyetso e phahameng ea Meth> 1.5): Mofuta ona oa sehlahisoa o na le sebaka se phahameng, ka hona ho na le hydrophobic, e na le lisosa tse tlase le likhang tse tlase tsa metsi. Hangata e sebelisoa ka thepa ea moaho, bokooa le liketsahalong tse ling tse hlokang mofuta o itseng oa hydrophobicity.
Tekanyo e tlase ea methylcellllllll e nkang sebaka (DS <1.5): ka lebaka la ho nkeloa sebaka sa methyl, e na le hydrophphilic, e na le stUbility e ntle haholo. Keperibuble e tlase e sebelisoang hohle e le indastering le indastering ea meriana e le bolo ea bosholu, emulifier le hlorisi.
2. Khethollo ka ts'ebeliso
Ho latela ts'ebeliso ea methylcelllilose masimong a fapaneng, e ka aroloa ka mekhahlelo e 'meli: Methyl e akaretsang ea indasteri le lijo le methapo ea methapo ea methapo.
Methylllulese ea indasteri: Boholo ba ho sebelisoa haholo ho ea kahong, maqhubu a lifilimi, "GypsMulose e sebelisoa ho fihlela ts'ebetso ea conce le Ho tšoarella; Indastering ea Coatiings, Methylceluse e ka eketsa botsitso le ho senyeha ha likokoanyana.
Lijo le Pharmacetical Methylceluse: Ka lebaka la thepa ea eona e nang le chefo e nang le chefo, methylxlulose e sebelisoa e le ho eketsoa lijo le meriana. Ka lijo, methylcellllulose ke bolo e tloaelehileng ea thickener le emulfier e ka tsietsang sebopeho sa lijo le ho thibela stratation kapa karohano; Tšimong ea meriana, methylcelluse e ka sebelisoa e le khetla ea lisapa, e mojaro ea lithethefatsi, hape e na le ts'ebetso ea lithethefatsi tse lokollotsoeng. Ho boloka le polokeho ho etsa hore kemolo e raliselitsoe methylxulo haholo libakeng tsena tse peli.
3. TLHALOSO EA HO FIHLELA
Methylcelllulose e arotsoe hangata mekhahlelo e 'meli ho latela mofuta oa "
Metsi a batang a qhibiliha methylcelllllllll. Hangata e sebelisoa liindastering le liindasteri tsa meriana joalo ka thipa kapa ea filimi eo. Khoebo ea mofuta ona oa methylxilose e fokotsehile ka mocheso o ntseng o eketseha, ka hona karolo ena e ka sebelisoa bakeng sa taolo ea kaho ha e sebelisoa indastering ea kaho.
Koloi ea KortvenTuple methylcelllllllll e ka qhibilihang ka li-solvent tsa manyolo ebile hangata e sebelisoa ho lipente, likotsi le masimong a mang a liindasteri. Ka lebaka la thepa ea eona e ntle ea lifilimi le khang ea lik'hemik'hale, e loketse ho sebelisoa tlasa maemo a hlomphollang.
4. Clatification ka boima ba limolek'hule (Viscosity)
Boima ba limolek'hule tsa methylcelllulose e na le phello e kholo ea thepa ea eona ea 'mele, haholo tšebetso ea vis lingoliloeng ka tharollo. Ho latela boima ba limok'hule, methylcelllll e ka aroloa ka mofuta oa viscosity o phahameng.
Litšoantšo tse tlase tsa Viscoslulose: boima ba limokere bo nyane ebile bo le bobebe pono e tlase. Hangata e sebelisoa lijong, meriana le litlolo, haholo-holo bakeng sa ho ikokobelila, haholo-holo bakeng sa ho ikokobelila, haholo-holo bakeng sa ho ikokobelitse, haholo-holo bakeng sa ho ikokobelitse Li-methylceity lithcolcelulese tse tlase li ka boloka ho hloka mafura hantle le ho tšoana, 'me ho loketse likopo tse hlokang tharollo ea likelello tse tlase.
Litšoantšo tse phahameng tsa kelello: E na le boima bo boholo ba limok'hule 'me bo etsa tharollo e phahameng kamora ho qhalana. Hangata e sebelisoa ka thepa ea moaho, makhapetla le madativelies ea indasteri. Lifate tse phahameng tsa kelello li ka eketsa matla a mochine ka botlalo, li hanyetsanang le ho hanyetsa tharollo e kholo le ho apara o phahameng haholo.
5. Classifice ka tekanyo ea phetoho ea lik'hemik'hale
Methylcellll Ho latela mokhoa oa ho fetola le degree, e ka aroloa hore ebe ke le kameny ea methyl le celsiste e se nang meeli ea senokoane.
Methyl cellingulose: e bua ka e-ba-li-ethen tsa clllulose tse hapiloeng ke methyl feela. Mofuta ona oa sehlahisoa o na le thepa e tsitsitseng ea 'mele le lik'hemik'hale,' me thepa ea eona e etsang li-fickening le baesekopo e ntle.
Composite celdilose e fetotsoeng: Ntle le ho benya, e phekoloa ka lik'hemisthuri, e le tloaelo, ho theha sehlahisoa se fetotsoeng. Mohlala, hydroxypropypropypropy methylcelllulos (HPMC) le celboxyMethyl cellulose (cmc). Hangata clposposte e se nang meeli ea li-clposite e nang le lisosa tsa metsi tsa metsi, ho hanyetsa mocheso le botsitso, li ka tloaelana le maemo a mangata a indasteri.
6. Khethollo ea indasteri ea ts'ebeliso
Ts'ebeliso e pharalletseng ea methylcelllllll e e lumella ho khethoa ho latela litšobotsi tsa eona tsa kopo indastering e fapaneng.
Indasteri ea indasteri ea ka e methylcell. E ka ntlafatsa ts'ebetso ea thepa ea moaho, thibela tahlehelo ea metsi pele le ho eketsa matla a ho fana ka matla a lihlahisoa tse feletseng.
Metsoalle ea lijo ke mothylcell e reng: E le emulslifier, thickener le hloahloeng ea ts'ebetso ea lijo. E ka thibela tahlehelo ea metsi, e ntlafatsa tatso le sebopeho sa lijo, le ho eketsa bophelo ba lijo.
Phallo ea pharmaceutail methylcelllulose: e le setsi sa matlapi kapa thepa e tolokileng bakeng sa lithethefatsi. Methylcelulose le eona e ka sebelisoa ho hlophisoa ha lithethefatsi tsa gastrointestinas e le mofani o sireletsehileng le o sebetsang oa lithethefatsi.
Indasteri ea litlolo e ncha: Lihlahisoa tsa Tlhokomelo le Litsela tsa Tlhokomelo le Li-Candmeticl
Ka kakaretso, ho na le mekhoa e mengata ea ho khetholla methylcellllllulose ho ea ka litšobotsi tsa eona tsa lik'hemik'hale le thepa ea eona ea kopo le thepa ea eona ea kopo. Mekhoa ena e fapaneng ea litaba ea litaba e re thusa ho utloisisa litšobotsi le mesebetsi ea methylllulose ka mokhoa oa thuto ea eona masimong a fapaneng.
Nako ea poso: Oct-23-2024