Linokolo tsa ReboyxypropypropyL methylcelllulos System tsa Thrickener li bohlokoa bakeng sa ho utloisisa boitšoaro ba bona likotong le litlolo. HPMC ke moitlami oa libuelli oa cellulose o sebelisoang haholo ke moemeli ea tona, ea hlolloang, le emumolizer ka lebaka la bokhoni ba eona ba ho rulula tharollo le ho tsitsa.
Mehato ea 1.VISSOSOSSOSY:
Litšoantšiso ke e 'ngoe ea thepa ea li-rheological e neng e ithutoa ka litsamaiso tsa HPMC. Mekhoa e fapa-fapaneng e kang ho Romella Linomo tsa Lipapali tsa Tlhahlobo
Lithuto tsena e bolela phello ea lintlha tse kang HPMC ea ho tsepamisa maikutlo
Ho utloisisa litšoantšo ke ntho ea bohlokoa kamoo e khethollang boitšoaro bo phallang, bo tsitsitseng le boikarabello ba ts'ebetso ea litsamaiso tsa HPMC.
Boitšoaro bo bobe:
HPMC Tharollo e bonts'a boitšoaro bo botle, ho bolelang hore litšoantšiso tsa bona li fokotseha ka sekhahla se ntseng se eketseha.
Lithuto tsa thuto ea tumelo lia fetoha ka matla a Shear-shellere le ho itšepa joaloka mahloriso a polymer.
Ho tšoaea boitšoaro bo botle-haholo ho bohlokoa bakeng sa lits'ebetso tse kang ho roala likokoana-hloko le ho hola ka mor'a kopo li bohlokoa.
3.thixottropy:
Thixottaps e bua ka ho hlaphoheloa ha liketsahalo ka mor'a ho tlosoa ha khatello ea maikutlo. Bolumeli ba HPMC ba bona boits'oaro ba Thixotropic, bo leng molemo ka likopo tse hlokang ho phalla le botsitso.
Boithuto ba matje ea li-Hefelogical ho kenyelletsa ho khutlisa liketsahalo ka mor'a nako kamora ho fana ka mokhoa oa ho hlama khatello ea maikutlo.
Kutloisiso ea Thixottropy Aids e bonts'a lihlahisoa tse kang pente, moo ho tsitsipanang nakong ea polokelo le boiketlong ba kopo li bohlokoa.
1.
Ka libaka tse phahameng kapa tse nang le litlatsetso tse ikhethang, tharollo ea hpmc li ka fetisoa ka bongata, li theha sebopeho sa marang-rang.
Bopaki ba hore ba Ruheology ba fuputsa boitšoaro ba ho atametsa mabapi le ho tsepamisa mohopolo, mocheso le ph.
Boithuto bo boholo bo bohlokoa bakeng sa ho rala liforomo tsa lithethefatsi tse lebelo le ho fetisa lihlahisoa tse tsitsitseng tsa gel le tse tsitsitseng tsa gel li thehiloeng libui le lihopotso tsa tlhokomelo ea motho.
Metsotso e 5.
Mekhoa e kang ea sesepa sa X-ray ea hasanya (saxs) le rheo-saxs e fana ka leseli ka likokoana-hloko tsa litsamaiso tsa HPMC.
Lithuto tsena li senola tlhahisoleseling mabapi le polymer Chain chainne, boits'oaro ba kakaretso le tšebelisano ea limolek'hule.
Kutloisiso e etsa likarolo tsa sebopeho e thusa ho bolela boitlamo ba macroscopic ea macroscopic ea ho boloka thepa ea thepa e lakatsehang.
6.dynamic handissis (DMA):
DMA e lekanya thepa ea Viscoelalate ea lisebelisoa tse tlasa Decillator.
Rheological Boys o sebelisa paramete ea DMA ella e le 'ngoe e ts'oanang le polokelo ea Mosilus (g "), mocheso o rarahaneng.
DMA e na le thuso e ngata haholo bakeng sa ho tšoaea boitšoaro bo tiileng le bo tšoanang le bo boholo ba li-gels tsa HPMC le li-pastes.
7. Ho na le lithuto tse tobileng:
Lithuto tsa Rheological li tsamaisa likopo tse ikhethang tse kang matlapa a hipmacetical, moo HPMC e sebelisoang joalo ka binder, kapa ka likhalase, moo e sebetsang le eona.
Boithuto ba HPMC bo ntlafatsa liforomo tsa ho phalla, mokhoa oa ho phalla, le ho tsilatsila lihlahisoa, ho netefatsa tšebetso ea sehlahisoa le kamohelo ea bareki.
Boithuto ba malumeli ba bapala karolo ea bohlokoa ho utloisisa boitšoaro bo rarahaneng ba sistimi ea HPMC. Ka liketsahalo tse tlotla, li soma, likheo, limahlale, liketsahalo tse ikhethang, lithuto tsena li potoloha li indastering ea HPMC ho pholletsa le indastering e fapaneng.
Nako ea poso: Mots'eanong-10-2024