1. HPMC imagawidwa m'magulu awiri: mtundu wa instant ndi mtundu wa fast dispersing.
Mtundu wa HPMC wofalikira mofulumira uli ndi chilembo S ngati suffix. Glyoxal iyenera kuwonjezedwa panthawi yopanga.
Mtundu wa HPMC wofalitsa mwachangu suwonjezera zilembo zilizonse, monga "100000″ amatanthauza "100000 viscosity yofalitsa mwachangu HPMC".
2. Ndi kapena popanda S, makhalidwe ndi osiyana
HPMC yomwe imafalikira mofulumira imafalikira mofulumira m'madzi ozizira ndipo imasowa m'madzi. Madziwo alibe kukhuthala panthawiyi chifukwa HPMC imafalikira m'madzi okha ndipo siisungunuka kwenikweni. Pakatha mphindi ziwiri, kukhuthala kwa madziwo kumawonjezeka pang'onopang'ono, ndikupanga madzi owoneka bwino okhuthala. Colloid yokhuthala.
HPMC ya Instant imatha kufalikira mwachangu m'madzi otentha pafupifupi 70°C. Kutentha kukatsika kufika pa kutentha kwina, kukhuthala kumawonekera pang'onopang'ono mpaka colloid yowoneka bwino yokhuthala ipangike.
3. Ndi kapena popanda S, cholinga chake ndi chosiyana
HPMC ya Instant ingagwiritsidwe ntchito kokha mu ufa wa putty ndi matope. Mu zomatira zamadzimadzi, utoto ndi zinthu zotsukira, ma clumps amatha kuchitika ndipo sangagwiritsidwe ntchito.
HPMC yomwazika mwachangu ili ndi ntchito zosiyanasiyana. Ingagwiritsidwe ntchito popanga ufa wa putty, matope, guluu wamadzimadzi, utoto, ndi zinthu zoyeretsera popanda zoletsa zilizonse.
njira yosungunula
1. Tengani madzi otentha ofunikira, muwaike mu chidebe ndikutenthetsa mpaka madigiri 80 Celsius, kenako pang'onopang'ono onjezerani mankhwalawa pang'onopang'ono ndikusakaniza pang'onopang'ono. Cellulose imayandama pamwamba pa madzi poyamba, koma pang'onopang'ono imafalikira kuti ipange slurry yofanana. Ziziritsani yankholo mukamasakaniza.
2. Kapena tenthetsani 1/3 kapena 2/3 ya madzi otentha kufika pa 85°C, onjezerani cellulose kuti mupeze slurry ya madzi otentha, kenako onjezerani madzi ozizira otsalawo, sakanizani mosalekeza, ndikuziziritsa chisakanizocho.
3. Cellulose ili ndi ukonde wochepa ndipo imakhala ngati tinthu tating'onoting'ono mu ufa womwe umasakanizidwa mofanana. Umasungunuka mwachangu ukayikidwa m'madzi kuti upange kukhuthala kofunikira.
4. Onjezani cellulose pang'onopang'ono komanso mofanana kutentha kwa chipinda, mukuyambitsa mosalekeza mpaka yankho loyera litapangidwa.
Ndi zinthu ziti zomwe zimakhudza kusunga madzi kwa hydroxypropyl methylcellulose?
Kusunga madzi kwa zinthu za hydroxypropyl methylcellulose HPMC nthawi zambiri kumakhudzidwa ndi zinthu zotsatirazi:
1. Kugwirizana kwa efa ya cellulose HPMC
Magulu a HPMC methoxy ndi hydroxypropoxy omwe ali ndi mayankho ofanana amagawidwa mofanana ndipo amakhala ndi madzi ambiri osungira.
2. Kutentha kwa gel yotenthetsera ya cellulose ether HPMC
Kutentha kwa gel yoyendetsera kutentha kukakhala kwakukulu, kuchuluka kwa madzi osungira kumakwera; mosiyana, kuchuluka kwa madzi osungira kumachepa.
3. Kukhuthala kwa efa ya cellulose HPMC
Pamene kukhuthala kwa HPMC kukukwera, kuchuluka kwa madzi kumawonjezekanso; pamene kukhuthala kufika pamlingo winawake, kuwonjezeka kwa kuchuluka kwa madzi kumachepa.
Kuchuluka kwa efa ya cellulose HPMC
Kuchuluka kwa ether ya cellulose HPMC kukawonjezeredwa, kuchuluka kwa madzi omwe amasungidwa kumakwera ndipo zotsatira zake zimakhala zabwino kwambiri.
Pakati pa 0.25-0.6%, kuchuluka kwa madzi omwe amasungidwa kumawonjezeka mofulumira pamene kuchuluka kwa madzi omwe amasungidwa kumawonjezeka; pamene kuchuluka kwa madzi omwe amasungidwa kumawonjezeka, kuchuluka kwa madzi omwe amasungidwa kumachepa.
Nthawi yotumizira: Feb-06-2024