Hydroxypropypropity Methylcelllll HPMC ke mofuta oa se sa kang sa oonilose. Ha e tšoane ke bethyl carboxyMele Ka lebaka la karolelano e fapaneng ea litaba tsa mekhoa ea mofuta le hydroxypropyL Litaba tsa MetholaxL le litaba tse phahameng tsa hydroxypropyl li haufi le tsa hydroxypropypropyproxel methyl celbelose. Leha ho le joalo, maemong a mang le a mang, le ha feela sehlopha sa hydroxyproppyl se na le li-solvent tse nang le li-solvent kapa mocheso o boima.
(1) thepa ea sootho ea hydroxypropyl methylcell
①solubility MethylceLullese ka ho boloka lithylxluulose Leha ho le joalo, ka lebaka la sehlopha sa hydroppypropyl, mocheso oa eona oa botumo ka metsing a chesang o phahame haholo ho feta oa methyl cellulose ea methyl. Ka mohlala, pono ea hydroxypropyl methylcelulose e atileng ka tekanyo ea 2% C, ka li-c, le mocheso oa gel c, ha a ntse a fihla haufi le 100 ° C Methyl cellulose ka mocheso o le mong ho ka ba ka 55 ° C. Ha e le likhoele tsa eona ka metsing, le eona e ntlafalitsoe haholo. Ka mohlala, hydroxypropyl methylcelllllll e (granulalce 0,2 ~ 0.5mm ka mocheso oa 4%, e ka qhibiliha habonolo ka metsing ntle le ho pholile.
②solubility MethylceLulolese ho li-hydroxypropypropiny methylcellulose ho feta tsa Methylcelulose. Bakeng sa lihlahisoa tse kaholimo ho 2.1, lifahleho tsa lintho tse phahameng tsa hydroxypropypropyLe methylcelpropypropypropy . E boetse e qhibiliha ho li-hydrocarbons tse ntlafalitsoeng joalo ka methylene chloromation le shloroform le li-solly tse kang Acetone, Isocestonal joala. Fulubility ea eona ka li-solvents tsa manyolo li molemo ho feta tsa metsi a metsi.
. Sebopeho sa sehlahisoa se le seng se eketseha ka keketseho ea khatello ea maikutlo. Bakeng sa lihlahisoa tse nang le boima ba limok'hente tse fapaneng ka ho tsepamisa mohopolo o le mong, sehlahisoa se nang le boima bo boholo ba molek'hule bo na le pono e phahameng. Kamano ea eona e nang le mocheso le eona e tšoana le ea Methyl Clubulose. Ha mocheso o tsoha, vicsosity e qala ho fokotseha, empa ha e fihla mochesong o itseng,
Viscosity e phahama le glation. Mocheso oa lihlahisoa tsa li-Vel oa lintho tse tlase o phahame. e phahame. Ntlha ea eona ea serethe sa eona ha e amana feela le pono ea Ether, empa e boetse e amanang le karolelano ea likarolo tsa sehlopha sa Metso le boholo ba sebaka sa sebaka sa sebaka sa polokelo. Ho tlameha ho hlokometsoe hore hydroxypropy methylcelulose, 'me tharollo ea eona e tsitsitse ka mocheso oa kamore ntle le monyetla oa ho senya enzzzzy.
. Kakaretso e joalo ka chloride, Brosidence, phosphate, nitesphate, jj. Leha ho le joalo, hore ho eketsoa letsoai le na le tšusumetso ho mochesong oa lipalesa oa lipalesa oa pherekano ea eona. Ha mocheso o shejoa ke letsoai, mocheso oa mohale oa pulhloa oa fokotseha. Ha leqhubu la letsoai le ntse le shebiloe ka tlase ho lipalesa, pono ea tharollo e tloaetse ho eketseha. Ka hona, palo e itseng ea letsoai e eketsoa. , ka ts'ebeliso, e ka fihlella phello e matla haholo moruong. Ka hona, lits'ebelisong tse ling, ho molemo ho sebelisa motsoako oa cellulose ether le letsoai ho feta tharollo e phahameng ea EST.
(4) HydroxypropyL MethylceLulo acid le alkali E ka mamella mefuta e meng e bobebe, e kang foromo, asiti ea acid, acid, eric acid, e joalo. Alkalis e joalo ka sostrac soda, metsi a leoatle a cadash le lime ha a na tšusumetso ho eona, empa li ka eketsa pono ea tharollo, ebe ea e fokotsa butle.
. Likhomphutha tsena tsa polyer li kenyelletsa Polyethylene Glycol, Polyvinyl Acetate, Polyvinyl, Peldroxethyl Metsoako e phahameng ea li-solek'hu tse phahameng tse kang gum arabic, li-hang gum, joalo-gum, jj. HydroxypropypropinyL methylcelulose e ka kopantsoe le ester ea Mannial kapa sorchenic acid, mme manong le masyricxyl methylcelulose.
. The Alldyspropypropy Methylcelulese, Glyoxal, Edipalddehyde, Edipaldehy Moemeli oa indasteri oa indasteri. Palo ea mofuta ona oa moemeli oa ho hokahanya haholo ka tharollo ke 0.2% ~ 10% ea boima ba Ether, ka mohlala ,.3% ea Glyoxal ka ho fetisisa. Ka kakaretso, kalafo
mocheso ke 0 ~ 30 ℃, le nako ke 1 ~ 120min. Karabelo ea cars - e hloka ho etsoa tlasa maemo acidic. Ka kakaretso, tharollo e eketsoa ka pele ka acid acid ea matla kapa a manyolo ho fetola PH ea tharollo ea 4 ~ 6, ka nako eo eketsa addehys. Asiti e sebelisitsoeng a acid e na le hydrochloric acid, simphonic acid, acid acid ea acid kapa acid e nepahetse. Asiti le Aldwehde e ka eketsoa ka nako e le ngoe ho lumella tharollo ea ho hokahanya sefapano ka har'a ph e lakatsehang ea ph. Boitšoaro bona hangata bo sebelisoa tšebetsong ea kalafo ea kalafo morerong oa ho hlophisa con cellulose. Kamora hore Ether ether e be e sa tloaelehang, ho loketse ho sebelisoa
20 ~ 25 ℃ metsi bakeng sa ho hlatsoa le ho hloekisoa. Ha sehlahisoa se sebetsoa, lintho tsa alkanaline li ka eketsoa tharollo ea sehlahisoa ho fetola PH ea tharollo, 'me sehlahisoa se tla qhibiliha ka potlako. Mokhoa ona o boetse oa sebetsa kalafo ea filimi ka mor'a tharollo ea ether ea Cellulo e etsoa filiming ea ho e etsa filimi e nyenyefatsang.
. 1, e tla ba e sitoang ke enzyme, e bolelang hore boemo ba sebaka ka seng ba kemiso ea cellular ba ka etsa tsoekere e lekaneng. Ka hona, haeba tekanyo ea chelete e kholo ea chelete ea eketseha ea cellulose e eketseha, ho hanyetsa khomumu ea enzyal ea Ether le eona e tla eketseha. Ho latela litlaleho, tlas'a maemo a laoloang, liphetho tsa li-hydrolys tsa enzymes tsa hydroxypropypropypropy .3 1.66) ke 3.8%, le hydroxethyl cellulose ke 1.7%. Ho ka bonoa hore Hydroxypropy methylcelulolose e na le bokhoni bo matla ba enzyme. Ka hona, enzy- ho hanela methylcluxypropy, e kopantsoeng le likotsi tsa eona tse ntle, joalo ka kakaretso, 'me ka kakaretso ha ho hlokahale hore li ka eketsa litsie. Leha ho le joalo, bakeng sa polokelo ea nako e telele ea tharollo e ka tlase, boloi bo ka ekeletsoa botumo, mme khetho e ka ikemisetsa ho latela litlhoko tsa ho qetela tsa tharollo. PhenyLerMertric Acetate le Manganese Fluosostus, empa kaofela li na le chefo, tlhokomelo e tlameha ho lefuoa ts'ebetsong. Ka kakaretso, 1 ~ 5mg ea PhenylMermercury acetate e ka eketsoa ho tharollo ka litha tsa litekanyetso.
(8) Ts'ebetso ea hydroxypropyL methylcelulose Filimi FydropxxPypropy Methylcellulose e na le thepa e ntle ea lifilimi. Tharollo ea eona ea ho holofala kapa tharollo ea Solvent ea Alvent e koaetsoe ka poleiti ea khalase, 'me e ba se se nang mokhoa oa ho omella. Le filimi e boima. E na le mongobo o motle oa mongobo ebile e lula e tiile mochesong o phahameng. Haeba mokhelo ea Hygroscopic a eketsoa, ho fetoha le maemo a eona ho nako ea eona ho ka ntlafatsoa. Mabapi le ho ntlafatsa maemo a feto-fetoha le maemo, mekotla e joalo e joalo ka Glycein le sorbinol ke eona e loketseng haholo. Ka kakaretso, tharollo ea ho tsepamisa maikutlo ke 2% ~ 3%, 'me palo ea folete e 10% ~ 20% ea Cellulose Ether. Haeba litaba tsa polasetiki e phahame haholo, sishbage ea collenal e tla hlaha ka mongobo o phahameng. Matla a feshene a filimi le
Laseleane e ekelitsoe haholo ho feta ea ka ntle ho naha, 'me e ea eketseha ka keketseho ea chelete e kenyellelitsoeng. Ha e le tygroscobity of filimi, e boetse e eketseha ka keketseho ea palo ea polasetiki.
Nako ea ho romella: nov-24-2022