1. Cellulose ea tlhaho
Seteishene sa mantlha saHpmcNa confoulose ea tlhaho, eo hangata e tsoang ho tsoa ho pulp ea lehong kapa pulton pulp. Litumo tsena tsa semela tsa tlhaho tsa tlhaho li na le likarolo tse ngata tsa sebopeho sa β-glucose le monyetla oa bohlokoa bakeng sa tlhahiso ea HPMC. Boholo ba bohloeki bo phahameng bo hloekisitsoeng li sebelisoa hangata ho hlahiseng hpmc ea boleng bo holimo ka lebaka la tlhahiso ea eona e tlaase.
2. Sodium hydroxide (Naoh)
Sodium hydroxide (Naoh) ea hlokahala bakeng sa phepelo le ho feto-fetoha ha cellulose. Mesebetsi ea eona e ka sehloohong e kenyelletsa:
Ho ruruha limolek'hule tsa cellulose le ts'ebetso e ntseng e eketseha;
Ho senya sebaka sa kristale sa crystalling ho nolofalletsa ho etsoa setulong sa motlakase;
E ntšetsa pele methylation methylation le maikutlo a hydromplation.
3. Methyl chloride (Ch,000l)
Methyl chloride (Methyl chloride) ke mokhoa oa mantlha oa karabelo ea methylation ka tlhahiso ea kimacll®hpmc®hpmc. E ea thusa ka cellulosed cellulose ea Alkalide ho nkela lihlopha tse ling tsa hydroxyl (-k) ka lihlopha tsa metho (-ch₃) ho thehaMethyl cerelosese (MC), ka ho etsa joalo o ntlafatsa tharollo ea tharollo le tsa lik'hemik'hale tsa selefounu.
4. Aplylene Oxide (C₃h₆o)
Propylene oxide e sebelisoa ka mokhoa oa hydroxypropypropyproxypropypropyL (-ch₂chohch₃) lihlopha ka kemisong ea lisele tsa mohala oa cellule molek'hule. Kenyelletso ea Hydroxypropyl Can:
Ho ntlafatsa hape alloubility ea metsi ea HPMC;
Ntlafatsa thepa ea bona ea viccos le litšōmo tsa tharollo ea eona;
Ntlafatsa botsitso ba eona ka lithemparelong tse fapaneng.
5. Solvent (metsi kapa anyvent sort)
Metsi kapa Solvent ea metsi Ntle le moo, li-solvent tse ling li sebelisetsoa ho tlosa lihlahisoa tse sa tsejoeng tsa filvation le ts'ebetsong e latelang ho netefatsa bohloeki ba sehlahisoa.
6. Acidic kapa Alkaline Catalyst
Bakeng sa ho ntlafatsa maemo a karabelo le ho ntlafatsa maemo a matheba, acidic catalysts e joalo ka sodium bicarbonate ho lokisa boleng ba PH e le hore karabelo e ka tsoela pele tlasa maemo a nepahetseng.
7. Lisebelisoa tse ling tse thusang
Ba bang ba matlahali, bahlophisi ba bang kapa litlatsetso tse ling tsa lik'hemik'hale li ka sebelisoa ho ntlafatsa boleng ba eona, le ho laola thepa ea eona ea lik'hemik'hale.
Kimacell®hpmC e hlahisoa haholo ke alkalization, methylation le hydrompypropyproppylale ea chelyulose ea tlhaho.Lisebelisoa tsa eona tse ka sehloohong tse kenyeletsang:
Con confoulose ea tlhaho (haholo-holo e tsoang ho molumo oa lehong kapa k'hothone e ntlafalitsoeng)
Sodium hydroxide (Naoh) (bakeng sa alkalization)
Methyl chloride (Ch,000l) (bakeng sa ho boloka Methylation)
Propylene oxide (C₃h₆o) (bakeng sa hydropxxxypropylation)
Mollo oa metsi kapa oa letsopa (bakeng sa karabelo le ho hlatsoa)
Li-catalysts le basiti (bakeng sa ho ntlafatsa maikutlo)
HPMC e sebelisoa haholo indastering e mengata e kang bongaka, lijo le likoti tse nang le liallo tsa eona tse ntle tsa metsi, khatiso ea lipatlisiso.
Poso: Feb-11-2025