Methylcellllll (MC)
Foromo ea limolecular ea methylcelllulose (MC) ke:
[C6H7o2 (OH) 3-H (Och3) n \] x
Tsamaiso ea tlhahiso ke ho etsa mpa e tsoang ho Cellulose Ka kakaretso, tekanyo ea sebaka ke 1.6 ~ 2.0, mme tharollo e boetse e fapana le likhato tse fapaneng tsa sebaka. Ke ea No-Ioni ea Ioni ea Ioni e mother.
Methylcelllulose e qhibiliha ka metsing a batang, 'me ho tla ba thata ho li hlakola metsing a chesang. Tharollo ea eona e halefileng e tsitsitse haholo maemong a ph = 3 ~ 12.
E lumellana hantle le starch, gour gum, jj. Ha mocheso o fihla mochesong oa botloho, arena e hlaha.
Ho boloka metsi ka metsing ka lebaka la chelete ea eona e ekelitsoeng, e bona, qhobosheane le sekhahla sa disphop.
Ka kakaretso, haeba palo ea chelete e kholo, setlamo se nyane, 'me pono e kholo, sekhahla sa ho boloka metsi se phahame. Har'a bona, palo ea lintlha tse ngata e na le tšusumetso e kholo ka ho fetisisa ho boloka metsi, 'me boemo ba pono ha bo lekane ka kotloloho boemong ba ho boloka metsi. Sekhahla sa disfototion se its'etleha haholo ho latela tekanyo ea phetoho ea mantlha ea likaroloana tsa cellulose le bophahamo.
Har'a Ethe ea selefouso e kholo ea selefouso, Methyl Cllluke le HydroxypropyL Methyl Celdulose e na le litheko tse phahameng tsa metsi.
Carboxexethylcellilose (cmc)
CARBOExxEMethy cemlulose, e tsejoa hape e le sodium carboxeme, e tsejoang ka seretse sa cellbox, 'me e nchafatsoa ebile e sa sebetse ebile e sa sebetse ebile e sa sebetse. Lisebelisoa tsa lik'hemik'hale.
E sebelisoa haholo ho indasteri ea sepahalang, indasteri ea lijo le lebala la oli le holisitsoeng, 'me chelete e sebelisitsoeng ho litlolo e mpa e le li-cosmetics tse mabapi le 1% feela.
Iolic cellulose e entsoe ka likhoele tsa tlhaho (k'hothone, jj.) Kamora kalafo ea Alkali
Tekanyo ea sebaka hangata e ka sebelisoa ka makhetlo a 0,4 ~ 1.4, 'me ts'ebetso ea eona e anngoe ke boemo ba eona.
CMC e na le bokhoni bo botle ba ho tlama, 'me tharollo ea hae e halefileng e na le bokhoni bo botle ba ho tlohela, empa ha ho na boleng ba Pholoso ea Setopo sa polasetiki.
Ha cmc e qhibiliha, ho utloahala hore depolmemerization e hlile e etsahala. Lifuba tsa bona li qala ho hlaha nakong ea khefulo, li feta ka boholo, li oela sefapanong. Lipatlisiso tse hlahisoang li amana le depolmerization.
Tekanyo ea li-rapolmeization e amana haufi le palo ea boima ba matla (metsi) ho sebopeho. Tsamaiso e mpe ea Solvent, joalo ka leino le meno le nang le glycein le metsi, cmc e ke ke ea hlobolisa matla mme e tla fihla sehlohlolong.
Tabeng ea metsi a filoeng ke metsi, chdrophilic e theko e phahameng haholo ho e nka hangata ho bonolo ho e sebelisa lijo tse matlafatsang ho feta cmc e tlase.
Hydroxeeylcell
Hec e entsoe ka ho phekola k'hothone e ntlafalitsoeng e nang le Alkali, ebe u amohela ka moetsi oa Edylene oxide e le moemeli ea nang le chelete ea acetone. Karolo ea sebaka seo ka kakaretso e 1.5 ~ 2.0. E na le hydrophphilicity e matla 'me ho bonolo ho amohela mongobo.
Hydroxethyl Cellulose e qhibiliha ka metsing a batang, empa ho thata ho li hlakola metsing a chesang. Tharollo ea eona e tsitsitse mochesong o phahameng o se nang mohono.
E tsitsitse ho acid le li-acid. Alkalis e ka potlakisa ho qhalana ha eona mme e eketsa pono ea eona hanyane. Ho senyeha ha eona hanyane ho hobe hanyane ho feta oa methyl cellulolose le hydroxypropyproppyl methyl celbelose.
HydroxypropypropyLe cellulolose (HPMC)
Foromo ea limolek'hule ea hpmc ke:
\ [C6h7o2 (Oh) 3-MN (Och3) M, Och2ch (OH) Ch3 \] n \] x
HydroxypropypropinpropyLulose ke mefuta-futa ea cellulose eo tlhahiso le ts'ebeliso ea tsona e ntseng e eketseha ka potlako.
Ke cellulose e sa khetholloang e entsoeng ka k'hothone e sa tsoakoang kamora ho sebelisana, le methyl chloride e le methyl. Degree of karolelano hangata ke 1.2 ~ 2.0.
Thepa ea eona e fapane ka lebaka la karolelano e fapaneng ea mekhoa ea mekhoa ea mekhoa le litaba tsa hydroxypropyl.
Hydroxypropypropinyl Methylcelubulose e qhibiliha habonolo ka metsing a batang, empa e tla kopana le mathata a ho qhibiliha ka metsing a chesang. Empa mocheso oa eona oa borena ka metsing a chesang o phahame haholo ho feta oa tšepe ea methyl. Khoele ka metsing a batang e boetse e ntlafalitsoe haholo ho bapisa le methyl cellulose.
Litaba tsa HydroxypropyL methylcelulose li amana le boima ba eona ba limok'hule, 'me boima ba limolek'hule. Mocheso o ama pono ea oona, joalo ka ha mocheso oa eketseha, Viscostory ea fokotseha. Leha ho le joalo, liketsahalo tsa eona tse phahameng li na le matla a mocheso ho feta methyl cellulose. Tharollo ea eona e tsitsitse ha e bolokoa ka mocheso oa kamore.
Ho boloka metsi ka 'mele oa hydroxypropyLe ho latela chelete ea eona e eketsang, pono, jj.
HydroxypropypropyproppyLulolose ho asiti le alkali, le tharollo ea hau ea ho holofala li tsitsitse haholo maemong a ph = 2 ~ 12 ~ 12. Cadance Soda le Metsi a lime ha li na phello e nyane ts'ebetsong ea eona, empa Alkali a ka potlakisa ho qhibiliha ha eona le ho eketsa pono ea eona.
HydroxypropypropinprofonyLese e tsitsitseng, empa ha tharollo ea letsoai e phahame, viccosion of hydroxypropy tharollo ea ho eketseha.
HydroxyproPypropinyL methylcelulose e ka tsoakoa ka metsoako ea polymer ea metsi ho theha tharollo e tšoanang le e phahameng ea pono. Joalo ka polyvinyl joala, starch ether, leqhubu la meroho, jj.
HydroxypropypropyproppyLulose e hanyetsanang hantle ho feta methylxilose, 'me tharollo ea eona e nyenyefalitsoe ho feta Methylcell.
Poso: Feb-14-2023