1.Hpmcamagawidwanso mtundu wanthawi yomweyo komanso mtundu wambiri wobala.
Mtundu wa HPMC wobalalika umadzaza ndi chilembo, ndipo glycoxal ayenera kuwonjezeredwa pakupanga.
Mtundu wa HPMC suwonjezera zilembo zilizonse, monga "100000" amatanthauza "ma vinya 100000.
2. Ndi kapena wopanda s, mikhalidweyi ndi yosiyana
Kufalikira mwachangu hpmc kumabala msanga mukakumana ndi madzi ozizira ndikuzimiririka m'madzi. Pakadali pano, madziwa alibe mamasukidwe, chifukwa HPMC imangomwazika m'madzi popanda kusinthika kwenikweni. Patatha pafupifupi mphindi ziwiri, mamasuwa amadzimadzi pang'onopang'ono amawonjezeka, ndikupanga mawonekedwe owoneka bwino a Colloid.
Nthawi yomweyo hpmc imatha kubalalitsidwa mwachangu m'madzi otentha nthawi pafupifupi 70 ° C. Kutentha pakagwa mpaka kutentha kwinakwake, mafayilo amawoneka pang'onopang'ono mpaka Collous yowonekera bwino imapangidwa.
3.Kodi kapena popanda, cholinga chake ndi chosiyana
Nthawi yomweyo hpmc imatha kugwiritsidwa ntchito mu ufa ndi matope. Mu katswiri wamadzimadzi, utoto ndi kuchapa zinthu, padzakhala gulu lazinthu zomwe sizingagwiritsidwe ntchito.
Obalalika mwachanguHpmcili ndi mapulogalamu angapo ndipo itha kugwiritsidwa ntchito mu ufa wa putty, matope, utoto wamadzimadzi, utoto, ndi kusamba zinthu popanda kutsutsana.
Njira ya 4.Dissolung
4-1. Tengani madzi otentha, ayikeni mu chidebe ndikuchitenthe pamwamba pa 80 ° C, ndipo pang'onopang'ono onjezani pang'onopang'ono malondawo pansi pa kusuntha pang'onopang'ono. Cellulose yoyandama kumadzi poyamba, koma pang'onopang'ono amabalalitsidwa kupanga yunifolomu. Njira yothetsera vutoli idakhazikika pomwe mukuyambitsa.
4-2. Kapenanso, kutentha 1/3 kapena 2/3 ya madzi otentha kupitirira 85 ° C, onjezani kuchuluka kwa madzi ozizira, pitirizani kusangalatsa, ndikuziziritsa kusakaniza.
. Miyala ya cellulose ikhale yabwino, ndipo imakhalapo ngati tinthu tating'onoting'ono tomwe timakhala ndi tinthu tomwe timayambitsa, ndipo imasungunuka mwachangu ikamakumana ndi madzi ofunikira.
4-4. Pang'onopang'ono komanso mowonjezereka amawonjezera pa cellulose kutentha kwa firiji, ndikusungabe zolimbikitsa mpaka yankho lowunikiridwa.
5. Kodi ndi zinthu ziti zomwe zimakhudza kusungidwa kwamadzi kwa hydroxypropyl methyl cellulose?
5-1. Cellulose ether hpmc homogeneity
Ambiri adalandira HPMC, methoxyl ndi hydroxypropoxyl amagawidwanso, ndipo ndalama zosunga madzi ndizokwera.
5-2. Cellulose ether hpmc kutentha kwa gel
Kutentha kwa mafuta kwa gel osakaniza, kuchuluka kwa madzi osunga madzi; Kupanda kutero, kutsitsa madzi osunga madzi.
5-3. Cellulose ether hpmc
Pamene mafakidwe a HPMC amawonjezeka, kuchuluka kwa madziwo kumawonjezekanso. Mawonekedwe akafika pamlingo winawake, kuwonjezeka kwa madzi osunga madzi kumakhala odekha.
Kuchuluka kwa ma cellulose ether hpmc
Kuchuluka kwakukulu kwa etherHpmcAnawonjezera, kuchuluka kwa malo osungitsa madzi komanso njira yabwinoko yamadzi.
Mu mitundu ya 0,25-0.6%, kuchuluka kwa madzi osungitsa madzi kudakula mwachangu ndi kuchuluka kwa kuchuluka kwa zowonjezera; Kuphatikiza apo kuchuluka kukuwonjezereka, kuchuluka kwa kuchuluka kwa madzi osungitsa madzi kunachepa.
Post Nthawi: Apr-26-2024