Hydroxypropylmethylcellulose (HPMC) ke motsoako o feto-fetohang le o feto-fetohang o nang le ts'ebeliso ho pholletsa le liindasteri tse fapaneng.Ho utloisisa moelelo oa eona, motho o tlameha ho hlahlobisisa metsoako ea eona, mekhoa ea tlhahiso le tšimoloho.
Lintho tse ka sehloohong tsa HPMC:
HPMC ke semi-synthetic polymer e nkiloeng ho cellulose, polysaccharide ea tlhaho e fumanehang maboteng a lisele tsa semela.Mohloli o ka sehloohong oa selulose ke makhasi a lehong kapa fiber ea k'hothone.Tšimoloho ea HPMC e kenyelletsa ho fetola selulose ka letoto la karabelo ea lik'hemik'hale ho e etsa e nkiloeng ho selulose.
Likarolo tsa maiketsetso tsa tlhahiso ea HPMC:
Mokhoa oa Etherification:
Tlhahiso ea HPMC e kenyelletsa etherification ea cellulose ka propylene oxide le methyl chloride.
Nakong ea ts'ebetso ena, lihlopha tsa hydroxypropyl le methyl li kenngoa mokokotlong oa cellulose, ho etsa HPMC.
Phetoho ea lik'hemik'hale:
Liphetoho tsa lik'hemik'hale tse hlahisitsoeng nakong ea motsoako li etsa hore HPMC e khethoe e le motsoako oa semi-synthetic.
Degree of substitution (DS) e bolela palo e tloaelehileng ea lihlopha tsa hydroxypropyl le methyl ka yuniti ea tsoekere ka har'a ketane ea cellulose.Boleng bona ba DS bo ka fetoloa nakong ea ts'ebetso ea tlhahiso ho fumana HPMC e nang le thepa e ikhethileng.
Tlhahiso ea indasteri:
HPMC e hlahisoa indastering ka tekanyo e kholo ke lik'hamphani tse 'maloa tse sebelisang liphetoho tsa lik'hemik'hale tse laoloang.
Ts'ebetso ea tlhahiso e kenyelletsa maemo a nepahetseng ho fihlela thepa e lakatsehang le ts'ebetso ea sehlahisoa sa ho qetela.
Mehloli ea tlhaho ea HPMC:
Cellulose e le mohloli oa tlhaho:
Cellulose ke thepa ea mantlha ea HPMC mme e ngata ka tlhaho.
Limela, haholo-holo lehong le k'hothone, li na le mehloli e mengata ea cellulose.Ho ntšoa ha cellulose mehloling ena ea tlhaho ho qala ts'ebetso ea tlhahiso ea HPMC.
Biodegradability:
HPMC e khona ho senyeha, e leng thepa ea lisebelisoa tse ngata tsa tlhaho.
Ho ba teng ha selulose ea tlhaho ho HPMC ho kenya letsoho ho thepa ea eona e ka senyehang, ho e etsa hore e boloke tikoloho lits'ebetsong tse itseng.
Lisebelisoa tsa HPMC:
lithethefatsi:
HPMC e sebelisoa haholo indastering ea meriana e le lisebelisoa tsa ho roala, li-binders le li-matrices tse sa khaotseng ho etsoa ka matlapa.Thepa ea eona ea biocompatibility le thepa ea tokollo e laoloang e e etsa khetho ea pele bakeng sa litsamaiso tsa phepelo ea lithethefatsi.
Indasteri ea kaho:
Ha ho hahoa, HPMC e sebelisoa e le sesebelisoa sa ho boloka metsi, se teteaneng, le ho beha taolo ea nako ka thepa e thehiloeng ho samente.Karolo ea eona ea ho ntlafatsa ts'ebetso le ho khomarela lirafshoa le li-plaster ke ea bohlokoa.
indasteri ea lijo:
HPMC e sebelisoa e le setei se teteaneng le se etsang gelling indastering ea lijo.
Hangata e sebelisoa lihlahisoa tsa lijo tse kang li-sauces, sopho le thepa e halikiloeng.
cosmetic:
Ho litlolo, HPMC e fumanoa lihlahisoa tse fapaneng tse kenyelletsang litlolo, litlolo le li-gel, tse sebetsang e le li-thickeners, stabilizers le emulsifiers.
Lisebelisoa tsa indasteri:
Ho feto-fetoha ha maemo ha HPMC ho fetela lits'ebetsong tse fapaneng tsa indasteri, ho kenyeletsoa ho etsa pente, likhomaretsi le ts'ebetso ea masela.
Boemo ba taolo:
Boemo ba GRAS:
United States, HPMC ka kakaretso e amoheloa e le e bolokehileng (GRAS) bakeng sa lits'ebetso tse itseng tsa lijo ke US Food and Drug Administration (FDA).
Litekanyetso tsa lithethefatsi:
HPMC e sebelisoang lihlahisoa tsa meriana e tlameha ho lumellana le litekanyetso tsa meriana tse kang United States Pharmacopeia (USP) le European Pharmacopoeia (Ph. Eur.).
ha re phethela:
Ka kakaretso, hydroxypropyl methylcellulose (HPMC) ke semi-synthetic polymer e nkiloeng ho selulose ea tlhaho ka mokhoa o laoloang oa phetoho ea lik'hemik'hale.Leha e bile le phetoho e kholo ea maiketsetso, tšimoloho ea eona e ho lisebelisoa tsa tlhaho joalo ka makhasi a patsi le k'hothone.Thepa e ikhethang ea HPMC e etsa hore e be motsoako oa bohlokoa o sebelisoang haholo ho tsa meriana, kaho, lijo, litlolo le liindasteri tse sa tšoaneng.Motsoako oa cellulose ea tlhaho le liphetoho tsa maiketsetso li kenya letsoho ho feto-fetohe ha eona, ho senyeha ha biolose le ho amoheloa ka molao mafapheng a fapaneng.
Nako ea poso: Dec-18-2023