1. Methylcellllulose (MC)
Kamora k'hothone e ntlafalitsoeng e phekoloa ka alkali, etherlosel ether e hlahisoa ka tatellano ea methane chloride e le moemeli oa matlo. 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.
(1) MethylceLulose 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.
(2) Ho boloka metsi ka metsi a methyl ka ponaleulow 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.
(3) Liphetoho ka mocheso li tla ama sekhahla sa ho boloka metsi a methyl hampe. Ka kakaretso, thempereichara e phahame ka ho fetisisa ho boloka metsi. Haeba mocheso oa seretse o le holimo ho 40 ° C, boloi ba metsi ba methyl ba fokotsehile haholo, ho ama ka matla kaho ea seretse.
(4) Ceblulose e na le phello e kholo ho kaho le ho tšoarela. "Ho ba le moea ona" mona ho bua ka matla a khokhothetsoeng ho ne ho utloahala pakeng tsa sesebelisoa sa mohiruoa le leboteng subano ea seretse. Hod'eno e phahame, ke tšoso ea seretse ea seretse e kholo le eona matla a ts'ebeliso ea seretse a futsanehile. Khoele ea Methyl
2. HydroxypropypropyLulosese (hpmc)
Hydroxypropypropyproping Methylcelulose ke mefuta e fapaneng ea cellulose eo tlhahiso le ts'ebeliso ea tsona e ntseng e eketseha ka potlako lilemong tsa morao tjena. 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.
(1) HydroxypropyproppyL methylceluselose e qhibiliha habonolo ka metsing a batang, 'me e tla tobana le mathata a ho qhala metsi 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.
. 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.
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. 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.
(5) Hydroxypropypropyly 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.
. Ho ba le kamano ea hydroxypropypropyLullese ho ea ho ea selelele ho ea ka ho fetisisa ho feta ea methylcelulose.
3. Hydroxeeyl cellulolose (Hec)
E entsoe ka k'hothone e hloekisitsoeng e phekotsoeng le Alkali, 'me e ile ea amohela oxide ea ethineneng e le moemeli ea nang le lebaka la Acetone. Karolo ea sebaka seo ka kakaretso e 1.5 ~ 2.0. E na le hydrophphilicity e matla 'me ho bonolo ho amohela mongobo.
(1) Hydroxethyl conlloulose e qhibilihang 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 ka sebelisoa nako e telele tlasa mocheso o phahameng o seretse, empa ho otla ha eona metsi ho tlase ho feta oa methyl cellulose.
(2) Hydroxethyl clloulose e tsitsitse ho tloaelehileng acid le alkali. Alkali a ka potlakisa ho qhalana ha eona mme o eketsa pono ea eona hanyane. Ho senyeha ha eona hanyane ho hobe hanyane ho feta oa methyl cellulolose le hydroxypropyproppyl methyl celbelose. .
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4. CmboxyMethyl cellulose (cmc)
Iolic cellulose e entsoe ka likhoele tsa tlhaho (k'hothone, jj.) Ho tšoaroa le Alkali 'me e sebelisoa e le moemeli oa kalafo. 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.
(1) celboxeMethyl Cellulose ea Hygroscopic, 'me e tla ba le metsi a mangata ha e bolokiloe tlasa maemo a akaretsang.
. Ha mocheso o feta ho 50 ° C, viscooty e ke ke ea fetoloa.
(3) Ho tsitsa ha eona ho angoa haholo ke pH. Ka kakaretso, e ka sebelisoa seretse sa Gypsum, empa eseng seretse se thehiloeng sammente. Ha alkanaline haholo, e lahleheloa ke liketsahalo.
(4) Ho boloka metsi a eona ho tlase haholo ho feta sa mumthyl cellulose. E na le phello ea seretse se bulehileng sa Gyptum ebe e fokotsa matla a eona. Leha ho le joalo, theko ea ceb ea carboxexemethyl e ka tlase haholo ho feta ea mumthyl cellulose
Nako ea poso: Jan-10-2023